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1
Gumma, Miss Rachana, Miss Rutuja Magar, and Miss Anuradha Dhavan Prof Jagtap S. C. "Development of Grain Moisture meter with Moisture and Price Display." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (April 30, 2018): 2023–25. http://dx.doi.org/10.31142/ijtsrd11587.
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PELTONEN-SAINIO, P., S. MUURINEN, M. VILPPU, A. RAJALA, F. GATES, and A. M. KIRKKARI. "Germination and grain vigour of naked oat in response to grain moisture at harvest." Journal of Agricultural Science 137, no. 2 (September 2001): 147–56. http://dx.doi.org/10.1017/s0021859601001228.
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Naked oat grain, which is free from lemma and palea, has high nutritional quality, but the unprotected grain is prone to mechanical damages caused by combine harvesting. Naked oats were grown for 3 years in southern Finland, at Viikki Experimental Farm, University of Helsinki (60° 13′N) to produce seed material for laboratory tests that evaluated: (1) genotypic differences of naked oat in sensitivity to damage during harvesting at grain moisture varying from c. 10% up to 50%, (2) the effect of mechanical damage on germination and grain vigour, and (3) grain characteristics contributing to susceptibility to reduced grain viability. In 1997, one naked (Rhiannon) and husked oat cultivar (Salo) were harvested, and in 1998–1999 additional four naked cultivars (Bullion, Lisbeth, Neon, SW 95926) were included. One large plot (14 m×10 m) was sown per cultivar. Two sowing times were used. Fully ripened grains were combine harvested on several occasions for each plot to obtain differences in grain moisture at harvest. Simultaneously, panicle samples were collected, dried and threshed by hand (controls). Grain moisture at each sampling and harvesting was monitored. About 3 months after harvesting, germination tests on blotting paper were carried out. Proportions of normally developed seedlings, seedlings lacking either radicle or hypocotyl, damaged coleoptiles, dead grains and lethally fungus-infected grains were recorded from combine harvested and hand threshed samples on different cultivars and harvest moistures. Tests on seedling elongation, seedling emergence through sand (2 cm and 5 cm depth), and ion leakage were applied to evaluate grain vigour. Groat weight, diameter, length, roundness, hardness and protrusion of embryo were determined.Our results indicated that naked cultivars were far more prone to mechanical damages than husked Salo, but differences among naked cultivars in susceptibility occurred. When targeting germination of [ges ] 75%, grain moisture at harvest should not exceed 19–26% depending on cultivar. Abnormal seedlings appeared irrespective of grain moisture at harvest, but the higher the grain moisture, more dead grains were found in harvested grains after storage. Seed vigour did not alter parallel to germination ability. High proportion of small grains in harvested yield and softer groats contributed to decreased sensitivity to mechanical damages.
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Likhayo, Paddy, Anani Y. Bruce, Tadele Tefera, and Jones Mueke. "Maize Grain Stored in Hermetic Bags: Effect of Moisture and Pest Infestation on Grain Quality." Journal of Food Quality 2018 (November 4, 2018): 1–9. http://dx.doi.org/10.1155/2018/2515698.
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Maize (Zea mays) is an important staple food crop produced by the majority of smallholder farmers that provides household food security through direct consumption and income generation. However, postharvest grain losses caused by insect pests during storage pose a major constraint to household food security. Hermetic storage technology is an alternative method that minimises postharvest losses by depleting oxygen and increasing carbon dioxide levels within the storage container through metabolic respiration of the grains, insects, and microorganism. Maize grain was stored for 180 days in hermetic bags or open-weave polypropylene bags to compare quality preservation when subject to initial grain moisture contents of 12, 14, 16, and 18 percent and infestation by Sitophilus zeamais. The moisture content of grain in hermetic bags remained unchanged while in polypropylene bags decreased. Dry grains (12% moisture content) stored well in hermetic bags and suffered 1.2% weight loss while for equivalent grains in polypropylene bags the weight loss was 35.8%. Moist grains (18% moisture content) recorded the lowest insect density (7 adults/kg grain) in hermetic bags while polypropylene bags had the highest (1273 adults/kg grain). Hermetic and polypropylene bags recorded the lowest (0–4 adults/kg grain) and highest (16–41 adults/kg grain) Prostephanus truncatus population, respectively. Discoloured grains were 4, 6, and 12 times more in grains at 14, 16, and 18 than 12 percent moisture content in hermetic bags. Grains at 18% moisture content recorded significantly lower oxygen (10.2%) and higher carbon dioxide (18.9%) levels. Holes made by P. truncatus in the hermetic bags were observed. In conclusion, storage of moist grains (14–18% moisture content) in hermetic bags may pose health risk due to grain discolouration caused by fungal growth that produces mycotoxins if the grains enter the food chain. The study was on only one site which was hot and dry and further investigation under cool, hot, and humid conditions is required.
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Zhang, Ye, Chang You Li, Zhi Wei Mai, Li Xu, and Feng Ying Xu. "Sampling Device for Grain Moisture on-Line Inspection." Advanced Materials Research 487 (March 2012): 495–99. http://dx.doi.org/10.4028/www.scientific.net/amr.487.495.
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Concerning the nonuniformity problem when sampling in current single grain moisture on-line inspection devices, this paper designed a new grain sampling device by analysing the physical property parameters of grains. The design of the sampling device is optimized by combining computer mode and physical experiments. In condition of ensuring single grain sampling, fixed the structure parameters of sampling rollers for South grains and North-east grains. The structure parameters of South grain sampling roller groove is length 18mm, width 2.5mm, depth 3mm. The structure parameters of North-east grain sampling roller groove is length 15mm, width 4mm, depth 4mm.
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Jones, Scott B., Wenyi Sheng, and Dani Or. "Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications." Sensors 22, no. 6 (March 8, 2022): 2083. http://dx.doi.org/10.3390/s22062083.
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Moisture content is a critical variable for the harvesting, processing, storing and marketing of cereal grains, oilseeds and legumes. Efficient and accurate determination of grain moisture content even with advanced nondestructive techniques, remains a challenge due to complex water-retaining biological structures and hierarchical composition and geometry of grains that affect measurement interpretation and require specific grain-dependent calibration. We review (1) the primary factors affecting permittivity measurements used in practice for inferring moisture content in grains; (2) develop novel methods for estimating critical parameters for permittivity modeling including packing density, porosity, water binding surface area and water phase permittivity and (3) represent the permittivity of packs of grains using dielectric mixture theory as a function of moisture content applied to high moisture corn (as a model grain). Grain permittivity measurements are affected by their free and bound water contents, chemical composition, temperature, constituent shape, phase configuration and measurement frequency. A large fraction of grain water is bound exhibiting reduced permittivity compared to that of free water. The reduced mixture permittivity and attributed to hydrophilic surfaces in starches, proteins and other high surface area grain constituents. The hierarchal grain structure (i.e., kernel, starch grain, lamella, molecule) and the different constituents influence permittivity measurements due to their layering, geometry (i.e., kernel or starch grain), configuration and water-binding surface area. Dielectric mixture theory offers a physically-based approach for modeling permittivity of agricultural grains and similar granular media.
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Spires Mexas and G. H. Brusewitz. "Acoustic Grain Moisture Meter." Transactions of the ASAE 30, no. 3 (1987): 0853–57. http://dx.doi.org/10.13031/2013.30486.
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Chiputula, Jonathan, Emmanuel Ajayi, Ray Bucklin, and Ann R. Blount. "Effects of Moisture Content and Compaction Pressure on Bulk Density of Rye." Applied Engineering in Agriculture 37, no. 3 (2021): 491–94. http://dx.doi.org/10.13031/aea.14385.
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HighlightsRye grain compaction was measured for three different moisture contents (8%, 12%, and 16% wet basis) at five different compaction pressures (7, 14, 34, and 55 kPa)Bulk densities were found to be statistically significantly dependent (p < 0.0001) on both the moisture content and applied pressure.Compacted bulk densities increased with increasing applied pressure for all moisture contents.Abstract. Bulk density of agricultural grains is needed to determine the quantity of grain in storage structures and to calculate grain pressures. The objective of this study was to investigate the effects of moisture content and applied pressure on bulk density of rye grain at moisture contents and pressures typical of those seen in storage structures. Rye compaction was measured for three moisture contents (8%, 12%, and 16% wet basis) at four compaction pressures (7, 14, 34, and 55 kPa) using a square box (based on the design used by Thompson and Ross, 1983). Data from the compaction tests were used to calculate the bulk densities for the three moisture contents and four compaction pressures. The bulk densities were found to be significantly dependent (p <0.0001) both on moisture contents and the pressure applied. Bulk densities varied with increasing moisture content as has been observed in similar studies for rye and other agricultural grains such as wheat and soybeans. These results provide guidance for estimating bulk density of rye in bins and other storage structures. Keywords: Grain compaction, Grain storage, Kernel rearrangement, Kernel elasticity.
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Wang, Hong Wei, Qi Jun Li, and Zhan Hou Wang. "An Automatic Barn-Entering System for Grains." Advanced Materials Research 774-776 (September 2013): 1617–20. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.1617.
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This paper provides an automatic barn-entering system for grains. Based on the technologies of microwave and PLC, the system may detect the grain moisture on line and control the directions of grain flows on conveyor. For the flows with moisture below the specified threshold, the grains may be made their way into the barn, otherwise rechannel the direction automatically and not permitted into the barn.Thus can avoid effectively grains' from going mouldy due to the high moisture content.
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Mészáros, Péter, and David B. Funk. "Unifying Calibration Parameters for Dielectric Moisture Meter." Progress in Agricultural Engineering Sciences 2, no. 1 (December 1, 2006): 73–94. http://dx.doi.org/10.1556/progress.2.2006.1.4.
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The Unified Grain Moisture Algorithm is capable of improved accuracy and allows the combination of many grain types into a single “unified calibration”. The purposes of this research were to establish processes for determining unifying parameters from the chemical and physical properties of grains. The data used in this research were obtained as part of the United States Department of Agriculture-Grain Inspection, Packers and Stockyards Administration's Annual Moisture Calibration Study. More than 5,000 grain samples were tested with a Hewlett-Packard 4291A Material/Impedance Analyzer. Temperature tests were done with a Very High Frequency prototype system at Corvinus University of Budapest. Typical chemical and physical parameters for each of the major grain types were obtained from the literature. Data were analyzed by multivariate chemometric methods. One of the most important unifying parameters (Slope) and the temperature correction coefficient were successfully modeled. The Offset and Translation unifying parameters were not modeled successfully, but these parameters can be estimated relatively easily through limited grain tests.
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Vásquez-Castro, Javier Alberto, Gilberto Casadei de Baptista, Casimiro Dias Gadanha Junior, and Luiz Roberto Pimentel Trevizan. "Effect of spray volume on the moisture of stored corn and wheat grains." Brazilian Archives of Biology and Technology 51, no. 3 (June 2008): 453–56. http://dx.doi.org/10.1590/s1516-89132008000300003.
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The goal of this work was to evaluate the effect of spray volume on the moisture of the stored grains of the corn and wheat. Two kg of each type of the grain were placed into the plastic bags and sprayed with the theoretical doses of 0, 1, 3, 5, 8, and 10 liters of water / ton of the grain. The grain moisture content was evaluated 24 h after the spray operation by the oven method. The increase in the grain moisture was quadratic and showed the same trend in both the corn and wheat. The grain moisture after spraying 10 L.t-1 showed little increase (0.8 %) as compared to the initial moisture content. Thus, the application of any spray volume as used in this study made no difference for a possible better uniformity in the distribution of insecticide throughout the sprayed material.
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Tavakoli, H., S. S. Mohtasebi, A. Rajabipour, and M. Tavakoli. "Effects of moisture content, loading rate, and grain orientation on fracture resistance of barley grain." Research in Agricultural Engineering 55, No. 3 (September 22, 2009): 85–93. http://dx.doi.org/10.17221/6/2009-rae.
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Force and deformation curves of agricultural materials must be provided for the proper design of harvesting and processing machineries. In this research, the fracture resistance of barley grain was measured in terms of the grain rupture force and energy. In this study, 8 treatments were performed as a randomised complete block design with 10 replications. The barley grains were quasi-statically loaded in horizontal and vertical orientations with the moisture content at four levels: 7.34, 12.11, 16.82, and 21.58% dry basis, and loading rates at two levels: 5 and 10 mm/min. Based on the results obtained, the force required for initiating the grain rupture decreased from 161.97 to 93.94 N, and from 75.37 to 50.16 N, and the energy absorbed at the grain rupture increased from 36.42 to 74.70 mJ and from 27.34 to 62.65 mJ, for horizontal and vertical orientations, respectively, with the increase in the moisture content from 7.34 to 21.58% dry basis. This showed that seeds are more flexible in the horizontal orientation.
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KIRKKARI, A.-M., P. PELTONEN-SAINIO, and H. RITA. "Reducing grain damage in naked oat through gentle harvesting." Agricultural and Food Science 10, no. 3 (January 3, 2001): 223–29. http://dx.doi.org/10.23986/afsci.5696.
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The caryopsis of naked oat is sensitive to mechanical damage at harvest, especially at high grain moisture content. For producing high quality naked oat seed, it is recommended that harvesting be carried out at as low grain moisture content as possible. This reduces mechanical damage to the grain and promotes germination. Under northern growing conditions, grains are often harvested at 20% moisture content or higher. In this study, reduced grain resulted from using gentler settings on the combine harvester. Two naked oat cultivars and one conventional oat were harvested at different grain moisture content using three combine harvester settings: the first setting that recommended for conventional oat, the second a reduced cylinder speed and the third a narrow concave clearance. The greater the grain moisture content of naked oat at harvest, the more damage was caused by threshing. Lower cylinder speeds tended to result in better germination than higher speeds, even under moist conditions. Narrowing the concave clearance did not affect germination.
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Armstrong, Paul R., Samuel McNeil, Naomi Manu, Augustine Bosomtwe, James K. Danso, Enoch Osekre, and George Opit. "Development and Evaluation of a Low-Cost Probe-Type Instrument to Measure the Equilibrium Moisture Content of Grain." Applied Engineering in Agriculture 33, no. 5 (2017): 619–27. http://dx.doi.org/10.13031/aea.12266.
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Abstract. Storage of grain in bags is common in Africa, Asia, and many other less developed countries making a bag probing method well-suited for moisture content (MC) measurement. A low-cost meter was developed under a USAID project to reduce post-harvest loss (PHL). The meter, referred to as the PHL meter, measures the MC of maize and other grains based on relative humidity (RH) and temperature (T) measurements obtained by a small digital sensor located in the tip of a tubular probe that can be inserted into bags of grain or other grain bulks. Measurements are used by equilibrium moisture content (EMC) equations programmed into the meter to predict MC. A handheld reader connected to the probe provides a user interface. Keywords: Equilibrium moisture content, Grain storage, Maize, Moisture content, Moisture meter, Post-harvest
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Nelson, S. O. "Sensing moisture content in grain." IEEE Instrumentation & Measurement Magazine 3, no. 1 (March 2000): 17–20. http://dx.doi.org/10.1109/5289.823818.
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Ramadhani, Siti Hasdiyanti, Ni Luh Sri Suryaningsih, and Yosefina Mangera. "Analysis of Grain Yield and Quality of Rice Aromatic Inpago Unsoed 1." AGRICOLA 8, no. 1 (September 24, 2019): 1–6. http://dx.doi.org/10.35724/ag.v8i1.2098.
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The purpose of the study was to determine the quality of the grainand rice are planted, the ricevarieties Inpago Unsoed 1. The research method use dis data collection, namely primary data andsecondary data. Primary data is used for observed in this research about grain moisturecontent,density of grain, foreign bodies, empty grains, grain crackedor broken, after the percentage ofgrain milled head of rice, broken rice, graing roats, grain limestone, yolk broken and milled rice yield.The results showed that during the observation the quality of grain varieties Inpago Unsoed 1 hasmilled at about 13,33% moisture content, grain density of 0,57g/ml, and grain weight is 27,60g/1000grain. The percentage point for the determination quality of head point is 73,49%, broken grainsabout 13,92%, and 12,34% graing roats. The quality of rice milled varieties inpago Unsoed 1 includelow. The lower of rice quality is due to the low of head rice percentage, while the percentage ofbroken grain sand high graing roats. Rice milled yield about 51,23%
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Anvarjonovich, Davronov Qaxramonjon, and Xoliqov Muxridin Bahromjon Ogli. "The effect of grain moisture on grain germination during grain storage." ACADEMICIA: An International Multidisciplinary Research Journal 11, no. 5 (2021): 418–21. http://dx.doi.org/10.5958/2249-7137.2021.01412.9.
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ElGamal, R., G. ElMasry, and F. Firtha. "Physico-mechanical properties of rough rice grain under different moisture conditions." Progress in Agricultural Engineering Sciences 8, no. 1 (December 2012): 17–36. http://dx.doi.org/10.1556/progress.8.2012.3.
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This study was carried out to evaluate some physical and mechanical properties of three Hungarian rice varieties named Dáma, Janka and M488 under different moisture levels to be a useful data for modelling the moisture changes in rough rice storage bins. Rough rice grains were conditioned to moisture contents of 12, 18, 24, and 30% (w.b.). Five mechanical expressions named rupture force (Fr), maximum stress (σmax), grain deformation (D), energy (E) and toughness (T) were extracted from stress–strain curve for all tested varieties as a function of moisture content. Also, some physical properties such as bulk density, true density, porosity and some morphological features of grain were determined as a function of moisture content for tested rough rice grain. The results revealed that the measured physical and mechanical properties are significantly effected by moisture contents for the three tested rice varieties. In general, when the moisture content increased, the rupture force and maximum stress decreased for all investigated grains. However, the deformation, energy and toughness firstly decreased with moisture content increase and after that increased with further increase of moisture content for all rice varieties. On the other hand, the bulk density, true density and porosity do not have a specific trend with increasing moisture content. Moreover, there was a significant difference among the selected rice varieties in terms of their bulk density and porosity at the same moisture content range.
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Basati, Zahra, Ezzatollah Askari Asli- Ardeh, and Vali Rasooli-Sharabiani. "Effect of moisture content on terminal velocity of lentil grain." Research in Agricultural Engineering 65, No. 1 (April 12, 2019): 7–12. http://dx.doi.org/10.17221/92/2017-rae.
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One of the aerodynamic characteristics of lentil is its terminal velocity. In order to determinate the terminal velocity, was designed a vertical wind tunnel. It was fabricated based on existing methods and standards. For decreasing the non-uniformity of airflow in the vertical wind column, was used a honey comb test area with 5 mesh screens. So, a wind tunnel nozzle was designed and fabricated using Morel method with the aim of increasing airflow rate and decreasing losses due to mesh screens. The height and section area of tunnel were 1.425 m and 0.1 × 0.1 m2, respectively. The pressure loss values were calculated at different parts of tunnel and then, the required power of tunnel was determined. In this study, lentil grains of Kimia and Gachsaran varieties were separated at three groups based on their size (small, medium and large). Then, the terminal velocity was measured at 5 levels of moisture content (8, 12, 16, 20 and 24% (w.b.)) for each group. The results showed that Kimia and Gachsaran variety had the highest (7.204 m·s–1) and the lowest (6.987 m·s–1) terminal velocity, respectively. The mean value of terminal velocity increased linearly from 6.751 to 7.396 m·s–1 by increasing the moisture content from 8 to 24% (w.b.). Also, by increasing the grains dimension from small to large, the terminal velocity increased from 6.345 to 7.792 m·s–1.
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Kwiatkowski, Cezary A. "THE CONTENT OF SOME TECHNOLOGICAL QUALITY COMPONENTS AND MYCOTOXINS IN GRAIN OF FOUR CULTIVARS OF SPRING WHEAT DEPENDING ON GRAIN STORAGE TIME AFTER HARVEST." Pakistan Journal of Agricultural Sciences 56, no. 03 (July 1, 2019): 549–56. http://dx.doi.org/10.21162/pakjas/19.7518.
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The aim of this study was to determine the effect of three grain storage times and the cultivar factor on some parameters used in commodity analysis of spring wheat grains. A field experiment was conducted in Czeslawice (Poland) using the split-plot method in 3 replicates in 27 m2 plots. This paper presents the effect of storage time (3, 15, 27 months) of grain of four spring wheat cultivars (‘Korynta’, ‘Monsun’, ‘Tybalt’, ‘Zadra’) on some technological quality characteristics. After harvest, the grains were dried to the moisture content 14% and subsequently stockpiled in a warehouse. It was observed that grains can be stored for a period of even two years with no risk if all the grain storage rules are followed. Short- and long-term grain storage (3-27 months) resulted in satisfactory values of the grain quality characteristics like grain moisture, protein content, and grain hardness index. The storage of grain did not affect negatively grain contamination with mycotoxins. No significant differences were observed in the response of the cultivars studied (grain moisture content, protein content, grain hardness index) to grain storage time. Significant differences among the cultivars were observed in the grain hardness index after 3-month storage. It was also noted that the cultivars ‘Korynta’ and ‘Tybalt’ were characterized by lower susceptibility to contamination with mycotoxins than cvs. ‘Zadra’ and ‘Monsun’. The results obtained in this study are a good indicator for cereal producers who store grains for a period of even two years, thus becoming independent of changing price conditions in the cereals market and the changing demand for and supply of animal feed and bread grain across other countries.
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Almaleeh, A. A., A. Zakaria, M. H. F. Rahiman, Y. B. Abdul Rahim, L. Munirah, and A. H. Adom. "RF signal calibration for improvement of 3D mapping image to locate moisture distribution in rice silo." Journal of Physics: Conference Series 2107, no. 1 (November 1, 2021): 012059. http://dx.doi.org/10.1088/1742-6596/2107/1/012059.
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Abstract Grain storage is an important part of the post-harvest quality assurance process. The moisture level of the grains during storage is one of the primary problems. The current method of measuring rice grain moisture content is based on random sampling, which is relatively localised, and there is no real-time moisture content measurement available. The RF signal was used to build a new technique for detecting moisture and its presence in rice in real-time in this paper. The mapping of an RF signal, in particular, can be transformed into volumetric tomographic images that can be used to forecast moisture distribution.
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Zahan, A., MA Ali, and MM Alam. "Probability of mycotoxin contamination during post harvest operations of boro paddy." Journal of the Bangladesh Agricultural University 14, no. 2 (May 29, 2017): 135–40. http://dx.doi.org/10.3329/jbau.v14i2.32686.
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John Deere and Frugal Moisture meter were compared with that of Indosaw standard. Frugal moisture meter was similar to the Indosaw standard but John Deere moisture meter were, on average, 2% higher than the standard. It is believed the John Deere model can be recalibrated to provide accurate results. Baseline survey on mycotoxins among 200 households of two districts of Bangladesh through the questionnaire indicate that the farmers were familiar with grain discoloration due to mold contamination but they did not have any idea about mycotoxins production on grains. Grain samples, one kg from each of 200 households were collected during May and June (Boro 2015), 119 had moisture content >14% and 37 had moisture content >20%. Purity, discoloration, mold invasion, insects and germination were assessed in the laboratory. Inert matter was 10% in 142 samples and >15% in 15 samples. Molds were associated with grain discoloration. Samples with high moisture content had higher quantity of moldy grains and stored pests. There was 25% grain discoloration of which 18% were moldy when the moisture content was >20%. Blotter incubation test revealed 19% incidence of Aspergillus growth on the 19% of the grains and Fusarium growth in 9% of the grains and produce Aflatoxins produced by Aspergillis and fumonisins by Fusarium were detected in rough rice of India (Reddy et al., 1986). Detection and quantification has of these two mycotoxins have not yet been done in Bangladesh. Through the present study the paddy samples will be analyzed by USDA Romer Lab test kit strips to create a national database on mycotoxins in paddy of Bangladesh.J. Bangladesh Agril. Univ. 14(2): 135-140, December 2016
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Chiputula, Jonathan P., Ray A. Bucklin, and Ann R. Blount. "Effect of Moisture Content on Coefficients of Friction between Triticale and Galvanized Steel." Applied Engineering in Agriculture 34, no. 3 (2018): 599–602. http://dx.doi.org/10.13031/aea.12575.
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Abstract. Grain physical properties such as coefficients of friction are required to design harvesting, cleaning, and handing equipment, and storage structures. The objective of this study was to measure coefficients of friction between triticale grain and galvanized steel at grain pressures and velocities typical of those seen when filling and emptying storage bins and hoppers. Coefficients of friction were measured using an apparatus consisting of a box with openings so that a galvanized steel blade could be pulled through a sample of grain. The forces required to pulling the blades through the grain were measured for three different moisture contents [8%, 12%, and 16% wet basis(wb)] and three different normal pressures (6.9, 10.3, and 13.8 kPa). The velocity of the blade being pulled through grain was kept constant at 50 mm/min for all pressures and moisture contents. Keywords: Grain bin, Grain pressure, Grain storage.Coefficients of friction were found to be statistically significantly dependent (p <0.0001) on moisture contents of triticale grain and were not statistically significantly influenced (p=0.149) by normal pressures. Coefficients of friction increased with increasing moisture content as has been observed in similar studies for grains including corn, wheat and soybeans. These results provide guidance for selecting physical properties for design of storage structures for triticale. Keywords: Grain bin, Grain pressure, Grain storage.
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Zagoruiko, M. G., Yu V. Kataev, R. A. Marin, and V. Ya Goltyapin. "Experimental Studies of Moisture Transport in Grain Material and Individual Grain." Machinery and Equipment for Rural Area, no. 10 (November 8, 2021): 23–27. http://dx.doi.org/10.33267/2072-9642-2021-10-23-27.
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The issue of moisture transfer in the total mass of the material and in a single grain is discussed taking into account the biological characteristics of the endosperm cells of the grain. Experimental studies of this process have been performed. The results of the oscillating mode with laying have been analyzed. It was found that during the time of laying, the moisture content of the grain shell increases significantly and the moisture content of the core decreases slightly, and during the implementation of the laying after the heating period, a larger amount of moisture moves from the core into the shell than after the cooling period.
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Galindo, Fernando Shintate, João Luis Zocoler, Marcelo Carvalho Minhoto Teixeira Filho, Salatiér Buzetti, José Mateus Kondo Santini, Cleiton José Alves, and Mariana Gaioto Ziolkowski Ludkiewicz. "LOSSES IN WHEAT CROP AS A FUNCTION OF THE WATER CONTENT OF THE GRAINS AT HARVEST." BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura 93, no. 2 (August 13, 2018): 138. http://dx.doi.org/10.37856/bja.v93i2.3212.
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The objective was to study the harvest point for the wheat crop, associated maximum grain yield and productive components with different harvest moisture and losses on natural drying in the field with different water levels in grain. The treatments consisted of the following crop moisture levels (on wet basis) of the grains: 27.9 (point of full physiological maturity), 22.6; 19.9; 18.1; 15; and 12.9%, evaluating the number of spikelets per spike, number of voids grains, number of grains per spike and per spikelet, percentage of lodging, thousand grain mass, number of ears per meter, hectoliter mass, and yield. The largest wheat yield was obtained with the grain harvest at physiological maturity point, decreasing linearly until natural drying to 13% (on a wet basis).
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Kalandarov, Palvan I. "High-frequency moisture meter for grain and grain products." Izmeritel`naya Tekhnika, no. 4 (2022): 65–71. http://dx.doi.org/10.32446/0368-1025it.2022-4-65-71.
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Vitázek, Ivan, and Peter Vereš. "Drying Rate of Grain Maize." Acta Technologica Agriculturae 16, no. 2 (June 1, 2013): 31–34. http://dx.doi.org/10.2478/ata-2013-0008.
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Abstract Maize is harvested after reaching maturity when its moisture content generally ranges from 30 % to 34 %, while the optimum moisture for storage is around 14-15 %. This moisture is usually achieved by thermal drying. Apart from initial moisture, the total drying time is affected by the temperature of the drying environment, atmospheric conditions and properties of the dried material. The present paper provides a description of the process of moisture loss and subsequent drying rate of grain maize from various growers. Obtained results are processed in a tabular and graphical form. After 30 minutes of drying, all the maize samples (10 samples two times in total) reached a moisture of 14 % and less, whereas 6 samples already after 20 minutes of drying. The rate of moisture loss was proportional to the initial moisture content. The drying of grain maize is considered one stage of the technological procedure in post-harvest treatment. Moreover, it is an essential preventive measure for wet harvest. Contemporary technologies of maize drying in modern dryers favourably influence the energy consumption in the process while maintaining the qualitative parameters of the dried material.
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Pavlov, S. A., and T. F. Frolova. "STUDY OF GRAIN DRYING IN THE AUTOMATED GRAIN DRYING UNIT." Agricultural Machinery and Technologies 12, no. 4 (September 27, 2018): 29–34. http://dx.doi.org/10.22314/2073-7599-2018-12-4-29-34.
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Mine and column grain dryers are a fairly complex object of control in the production line. The process of grain drying is characterized by a large number of parameters, quantitatively and qualitatively characterizing the dryer operation. First of all, this includes the criteria of maximum performance and minimum deviations of the moisture content of the dried grain from the standard values. These criteria, as studies show, are interconnected with each other: an increase in the performance П of the dryer leads to an increase in the moisture content of the grain coming out of it, and, conversely, an attempt to reduce the moisture content of grain causes the need to reduce the performance П. (Research purpose) The research purpose is to develop the expression for the transfer functions of the of grain flow control depending on perturbations of the initial moisture content and the maximum grain temperature, as well as to conduct experimental studies. (Materials and methods) The authors have developed simplified mathematical models of moisture perturbation compensation of grain coming in for drying and its heating temperature in a drying chamber by changing the dryer performance on the basis of theoretical-and-experimental studies. (Results and discussion). The authors have obtained expressions to control the process performance when the current humidity and temperature change through the dryer performance parameters as a function of grain moisture flow and heat used to grain heating up to an acceptable temperature. Farm tests of developed transition management functions have been implemented for dryer SZT-16 controlled by PLC S7-1200 Siemens and operating in an automatic mode. Tests have been conducted on the “Babachev” farm, Karachev district of the Bryansk region in the process of drying food wheat grain. (Conclusion) It has been confirmed that the dryer performance is determined not only by the rated capacity but also by the deviation of the current moisture content of grain from the specified values and by the ratio of the amount of heat used for evaporating and heating. The dryer performance at constant initial humidity is determined by its rated performance, the maximum specified difference of grain temperatures, as well as the ratio of the amounts of heat used for evaporating and heating.
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Rodrigues, Gabrielly B., Osvaldo Resende, Daniel E. C. de Oliveira, Lígia C. de M. Silva, and Weder N. Ferreira Junior. "Mechanical Properties of Grains Sorghum Subjected to Compression at Different Moisture Contents." Journal of Agricultural Science 11, no. 4 (March 15, 2019): 279. http://dx.doi.org/10.5539/jas.v11n4p279.
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This study aimed to evaluate the influence of drying at different temperatures on the mechanical properties of grains of grain sorghum subjected to compression at the natural rest position. Grains dried at temperatures of 60, 80 and 100 °C with different moisture contents (0.515; 0.408; 0.315; 0.234; 0.162 and 0.099 (d.b.)) were subjected to uniaxial compression between two parallel plates, applied at their natural rest position, at a rate of 0.001 m s-1. The force required to rupture in grains of grain sorghum increased as their moisture contents decreased, with values of 47.17 to 78.44 N, 61.81 to 69.66 N and 52.07 to 70.89 N for the temperatures of 60, 80 and 100 °C, respectively. The compression force required to deform grain sorghum decreased with the increment in moisture content, and the proportional deformation modulus increases with moisture content reduction. Within the studied range of moisture content, the values were 87 × 10-7 to 354.99 × 10-7 Pa, 132.63 × 10-7 to 465.98 × 10-7 Pa and 80.18 × 10-7 to 429.85 × 10-7 Pa for the temperatures of 60, 80 and 100 °C, respectively.
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Morais, Wilker Alves, Osvaldo Resende, Fernando Nobre Cunha, Vitor Marques Vidal, Nelmício Furtado da Silva, Lilian Dos Santos Silva, Ana Carolina Oliveira Horschutz, and Vera Lúcia Quintino. "Forma e tamanho de grãos de soja para diversos teores de água." Semina: Ciências Agrárias 39, no. 6 (November 30, 2018): 2821. http://dx.doi.org/10.5433/1679-0359.2018v39n6p2821.
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Physical properties of soybean grains present differences as a function of cultivars and moisture content, with the correlation between physical properties. This study aimed to determine the characteristics related to the physical properties of grains with different moisture contents of three soybean cultivars. The experimental design was completely randomized design in a 3 × 6 factorial scheme with three replications, consisting of three soybean cultivars (6266 RSF IPRO, BMX Potência RR, and 14403Z6001) and six grain moisture contents (11, 13, 15, 17, 19, and 21% wb). Soybean grains presented an initial moisture content of 11.0, 11.0, and 10.8% wb, respectively for 6266 RSF IPRO, BMX Potência RR, and 14403Z6001. The other moisture contents were obtained by soaking in a BOD chamber maintained at 25 °C and 93% of relative humidity. We assessed volume, roundness, sphericity, surface area, volumetric shrinkage, and volumetric shrinkage rate. The data were submitted to the analysis of variance by the F-test (p < 0.05) and when significant, regression analysis was performed for grain moisture contents and the means of cultivars were compared by the Tukey’s test. Pearson’s correlation analysis was also carried out to represent the linearity between grain physical properties. The cultivar BMX Potência RR obtained the highest results for volume, roundness, sphericity, and surface area. Volume and surface area increased as the moisture content of soybean grains increased; the opposite was observed for roundness and sphericity. A linear increase in volumetric shrinkage was observed as moisture content increased. The values of the correlation coefficients of the linear regression models can be used to describe the relationships between physical properties.
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Funk, David B., Zoltan Gillay, and Peter Meszaros. "Unified moisture algorithm for improved RF dielectric grain moisture measurement." Measurement Science and Technology 18, no. 4 (February 27, 2007): 1004–15. http://dx.doi.org/10.1088/0957-0233/18/4/007.
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Gillay, Bíborka, and David B. Funk. "Effects of Non-uniform Kernel Moisture Content on Moisture Measurement of Corn." Progress in Agricultural Engineering Sciences 1, no. 1 (November 1, 2005): 77–93. http://dx.doi.org/10.1556/progress.1.2005.1.5.
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The price paid for corn is usually based on 15.0 or 15.5 percent moisture content. However, corn must be dried below 13 percent moisture to ensure safe storage for a year or more. In the U.S., such stored corn cannot be directly remoistened before selling it, but it can be mixed with moist new-crop corn. Accurate moisture measurement of mixtures of dry and moist corn is important to permit adjustment of blending ratios to maximize profitability, but grain moisture meters are less accurate for mixtures of wet and dry grain. This research evaluated the differences between dielectric-type moisture meter results for mixed and equilibrated corn samples at different moisture levels and different measurement frequencies. Equilibrated grain samples tended to give lower moisture results than recently mixed grain samples - especially in the 1 to 10 MHz region. These differences permitted detection of mixtures by using moisture measurements at two frequencies.
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Lewis, Micah A., Samir Trabelsi, and Stuart O. Nelson. "Development of an Eighth-scale Grain Drying System with Real-time Microwave Monitoring of Moisture Content." Applied Engineering in Agriculture 35, no. 5 (2019): 767–74. http://dx.doi.org/10.13031/aea.13130.
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Abstract. After being harvested, cereal grain and oilseed are stored and dried in large cylindrical storage bins. Drying is necessary to prevent spoilage and degradation; however, because of the significant depth of material in the drying bin, a common problem in grain and oilseed drying is overdrying the bottom layer while trying to dry the top layer. This is due to insufficient knowledge of moisture throughout the bin. In some cases, an operator is limited to probing reachable locations to determine moisture content. However, this does not lend to observing the dynamics of moisture content within the bin continuously, and the lower layers of grain or seed within the bin are susceptible to being overdried. Temperature and/or moisture cables to monitor conditions throughout the bin are more widely used. These sensors use a correlation between grain moisture content and temperature and relative humidity. However, error in moisture content determination increases greatly at high relative humidity and/or temperature. By using a microwave moisture sensor operating at 5.8 GHz, developed within USDA ARS, the moisture content of the cereal grain or oilseed can be measured continuously, providing real-time moisture content with 12-s resolution. An automated, eighth-scale grain drying system was developed utilizing temperature and relative humidity sensors at different heights within the grain bin and the microwave moisture sensor to observe drying parameters and moisture migration as the grain or seed dried. Grain and seed moisture content was determined in real-time with a standard error of calibration of = 0.54% moisture content when compared to the reference oven-drying method. Overall evaluation showed that the automated grain drying system is an effective solution for real-time monitoring of moisture content and other parameters during drying. Keywords: Dielectric properties, Grain drying bin, Moisture content, Microwave sensing, Real-time monitoring, Sensors.
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MATHISON, G. W., R. M. ELOFSON, and L. P. MILLIGAN. "FEEDING VALUE AND PRESERVATION OF HIGH MOISTURE GRAIN TREATED WITH SULFUR DIOXIDE." Canadian Journal of Animal Science 68, no. 4 (December 1, 1988): 1209–23. http://dx.doi.org/10.4141/cjas88-136.
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Five experiments were conducted to evaluate the effectiveness of sulfur dioxide as a moist grain preservative. In exp. 1 barley containing 30% moisture was treated with 0, 0.25, 0.5, 0.75 and 1.0% (wt/wt) sulfur dioxide and stored in 300-kg lots in wooden boxes from May to August. Grains treated with the two highest levels of chemical were well preserved. Sulfur dioxide treatment did not influence (P > 0.05) apparent digestibilities of dry matter (DM) or energy. In exp. 2, approximately 26 t of barley (22% moisture) were preserved with 1% sulfur dioxide. This material was in good condition when fed after 6 mo of storage; however, grain thiamin levels were below detectable limits and the sulfur content of the grain was increased from 0.27 to 0.68% (DM basis). Daily gains and gain: feed DM ratios were similar (P > 0.05) for 23 steers given dry barley and 24 steers given sulfur dioxide-treated barley during a 104-d feeding period when the grains were included in diets containing 90% concentrate with or without added thiamin. Dry matter intake of steers fed sulfur dioxide-treated grain tended (P < 0.10) to be reduced in the first 28 d of the trial (6.9 vs. 7.3 kg d−1) and final carcass backfat depths were reduced from 1.17 to 0.92 cm (P < 0.05) when treated grain was fed. In exp. 3 a barley/oat grain mixture (21% moisture) was treated with 1% sulfur dioxide in September 1983 and stored in a 22-t bin. The grain was well preserved when removed from the bin in November 1983. Sulfur dioxide treated-grain or addition of sodium bicarbonate to the diet had no influence (P > 0.05) on rate of gain, feed conversion or carcass weight when compared to dry grain when 16 heifers per treatment were fed 0.75 kg hay plus concentrate ad libitum. Carcass backfat depths were reduced (P < 0.05) from 1.16 to 0.92 cm when sulfur dioxide-treated grain was fed but were increased to 1.47 cm when sodium bicarbonate was added to the diet containing treated grain. In exp. 4 sodium metabisulfite preserved damp grain from October to January. In the last experiment the movement of sulfur dioxide through grain was examined. It was found that the chemical was ineffective when added at a single location at the bottom of a bin. It was concluded that sulfur dioxide and sodium metabisulfite are useful preservatives for high-moisture grain in small bins when the moisture content is below 30% and the ambient temperatures are cool. Key words: Sulfur dioxide, sodium metabisulfite, high-moisture grain, preservatives, cattle
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Huuskonen, A., M. Rinne, and K. Manni. "Effects of different barley grain preservation techniques on intake, growth and carcase traits of finishing dairy bulls fed grass silage-based rations." Journal of Agricultural Science 158, no. 8-9 (November 2020): 748–55. http://dx.doi.org/10.1017/s0021859621000022.
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AbstractThe effects of different barley grain preservation techniques on intake, growth and carcase traits of dairy bulls were determined in a feeding trial using 52 Holstein and 48 Nordic Red bulls which were allotted to four feeding treatments (five pens and 25 bulls per treatment). Spring barley was harvested with a conventional combine harvester and four different preservation techniques formed the four experimental treatments. Dry grain (DG) was dried to the targeted dry matter (DM) concentration of 870–880 g/kg and rolled within 7 days prior to feeding. High moisture grain treated with a formic acid-based additive (FA) was harvested and crimped on the targeted DM content of 700 g/kg. Low moisture grain treated with a urea-based additive (UR) and low moisture grain treated with a propionic acid-based additive (PA) were harvested and crimped on the targeted DM content of 800 g/kg. The bulls were fed with total mixed ration ad libitum. On DM basis, the diets included grass silage (500 g/kg), barley grain (485 g/kg) and a mineral–vitamin mixture (15 g/kg). Daily DM intake (DMI) and live weight gain were 6% higher when crimped grains were used instead of DG (P < 0.05). There were no observed significant differences in DMI, gain or carcase traits between high moisture and low moisture crimped grain treatments or between UR and PA. The current results show that producers have the option to vary grain preservation system without major changes to growth performance or carcase traits.
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A. Gennadios and C. L. Weller. "Moisture Adsorption by Grain Protein Films." Transactions of the ASAE 37, no. 2 (1994): 535–39. http://dx.doi.org/10.13031/2013.28109.
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Amoodeh, M. T., M. H. Khoshtaghaza, and S. Minaei. "Acoustic on-line grain moisture meter." Computers and Electronics in Agriculture 52, no. 1-2 (June 2006): 71–78. http://dx.doi.org/10.1016/j.compag.2006.01.003.
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Flor, Omar, Héctor Palacios, Franyelit Suárez, Katherine Salazar, Luis Reyes, Mario González, and Karina Jiménez. "New Sensing Technologies for Grain Moisture." Agriculture 12, no. 3 (March 9, 2022): 386. http://dx.doi.org/10.3390/agriculture12030386.
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In this review, we present a description of conventional technologies and new advances for the estimation and sense of moisture content in grains. The operating principles, accuracies and response times are described. The review considers an exhaustive search of scientific developments and patent registrations. It was concluded that most of the new developments correspond to methods of which the measurement principles are based on the analysis of the electrical characteristics of the grains. In addition, new methods of image analysis have been implemented that provide measurements with reduced response times and with precisions of utility for its application in the agro-industrial field. In addition to this, wireless communication technologies have been implemented that allow the implementation of moisture measurement methods in moving grains within processing chains.
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NIKOLOV, Bogdan, Irena GOLUBINOVA, Slaveya PETROVA, and Plamen MARINOV-SERAFIMOV. "Effect of Grain Moisture Content on Popping Yield of Sorghum Genotypes." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Food Science and Technology 76, no. 2 (November 23, 2019): 132. http://dx.doi.org/10.15835/buasvmcn-fst:2019.0023.
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This paper aimed at providing popping characteristics of different red and white sorghum genotypes according to different moisture content at traditional methods of popping using high temperature for a short time (HTST). To increasing grain moisture level, seven sorghum genotypes - mutant and hybrid lines (M1(6282), 16113, 16121, 1641, 1643, 1651, 1673) were soaked to 0, 60, 120 and 180 min in distilled water. The popping rate and expansion ratio were recorded. The results showed that conventional method of popping is a good main to produce pops sorghum after increasing moisture of grains. Moistening of grains from 13-16 % increased 5.3-10.2% popping rate of all sorghum genotypes. The mutant line M1(6282) with red coloration of pericarp had the highest popping rate and expansion ratio at 16% moisture i.e. 85% and 3.88 %, respectively. There was correlation between diameter of grains and parameters expansion ratio (from 0.604 to 0.724), popping rate (from 0.815 to 0.878) and moisture grains (from 0.815 to 0.878).
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Suleiman, Rashid, Kun Xie, and Kurt A. Rosentrater. "Physical and Thermal Properties of Chia, Kañiwa, Triticale, and Farro Seeds as a Function of Moisture Content." Applied Engineering in Agriculture 35, no. 3 (2019): 417–29. http://dx.doi.org/10.13031/aea.13142.
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Abstract.The knowledge of physical and thermal properties in cereals, grains, and oilseeds establishes an essential engineering tool for the design of equipment, storage structures, and processes. The physical properties and thermal properties for Chia, Kañiwa, Farro, and Triticale grains were investigated at three levels of moisture content: 10%, 15%, and 20% (d.b.). Physical properties included 1000-seed weight, dimensions, mean diameters, surface area, volume, sphericity, and aspect ratio. Results indicated 1000-seed weight increased linearly with moisture content from 2.0 to 3.5 g for chia, 2.5 to 4.0 g for kañiwa, 42.7 to 48.3 g for farro, and 51.0 to 53.7 g for triticale. The porosity for farro and triticale increased from 38.71% to 44.1%, 40.37% to 44.65%, respectively, as moisture increased. Angle of repose increased as moisture content increased, as did values of L, a*, and b* for all grains. Thermal properties of kañiwa, farro, and triticale showed high correlation to moisture content. A negative relationship was observed for the specific heat capacity and thermal conductivity, while the thermal diffusivity had a positive linear increase trend with moisture content. This study showed that physical and thermal properties varied from grain to grain as a function of moisture content, and these data will be useful for future application development. Keywords: Chia, Farro, Grains, Kañiwa, Moisture, Physical properties, Thermal properties, Triticale.
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Plett, S. "Corn kernel breakage as a function of grain moisture at harvest in a prairie environment." Canadian Journal of Plant Science 74, no. 3 (July 1, 1994): 543–44. http://dx.doi.org/10.4141/cjps94-097.
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The relationship between grain moisture at harvest and the amount of kernel cracking was evaluated at Brandon, Manitoba. Grain moisture at harvest was closely correlated to percentage kernel cracking. Least amount of kernel cracking occurred with grain moisture ranging from 16.7% for K730 to 22.1% for 3979. Key words: Maize, kernel breakage, grain moisture
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Sesikashvili, Otari, Elene Gamkrelidze, Nodari Mardaleishvili, Gia Dadunashvili, Shalva Tsagareishvili, and George Pkhakadze. "The biochemical changes in legumes during high-temperature micronization." Potravinarstvo Slovak Journal of Food Sciences 15 (June 28, 2021): 555–65. http://dx.doi.org/10.5219/1629.
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The article considers the change in chemical and biological characteristics in some legumes grains, under conditions of high-temperature micronization with different moisture contents during heat treatment with infrared rays. The heat treatment of grains was carried out on a laboratory apparatus with a quartz radiant infrared panel. The temperature variation in the heat treatment zone occurred due to changing the distance between the panel and the surface of grains. The grain temperature was determined using a laser thermometer, and with a timer. To determine chemical and biological characteristics, we used a special optical density metering device. We have studied: 1. The dependence of starch content on the temperature in the changing initial moisture content. We found that after 30 seconds of high-temperature micronization of, “Tsanava“ beans at a grain moisture content of 12.7%, the starch content in the grain increases from 39.65% to 40.12%, then gradually decreases, and at 18.3% moisture content, it increases from 38.71% to 41.2%, with a moisture content of 28.6% it increases from 37.36% to 42.42%. Similar processes are also observed for the beans “field red“ and “white lupine“; 2. The dependence of glucose content on the temperature in the changing initial moisture content. As the mass fraction of starch decreases, the percentage of sugar (in terms of the equivalent amount of glucose) at a moisture content of 12.7% at the initial stage increases from 1.36% to 1.46%, and then the percentage of sugar increases relatively quickly to 1.64%, at a moisture content of 18.3% it increases from 1.3% to 1.38%, and then increases to 1.51, with a moisture content of 28.6%, it increases from 1.28% to 1.35% and then increases to 1.54. Similar processes are also observed for the beans “field red“ and “white lupine“.
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Silva, J. V., C. M. R. Franco, E. M. A. Pereira, T. H. F. Andrade, and A. G. Barbosa de Lima. "Rough Rice Grain Drying (BRSMG CONAI) at Temperatures of 60 and 80°C in Oven." Defect and Diffusion Forum 369 (July 2016): 148–51. http://dx.doi.org/10.4028/www.scientific.net/ddf.369.148.
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Rice (Oryza sativa L.) is a greatly important socio-economic crop. Immediate threshing and drying of wet harvested grains, to reach 18–19% (w.b) moisture content, is a practical method used by individual farmers to slow deterioration and increase selling prices. However, rough rice grain is different from other grains because it has an outer cover shell (palea and lemma) and a bran layer. Thus, the heat and mass transfer processes that take place during grain drying are different from those of other cereal grains, so understanding the effect of different treatments, drying temperature, moisture content and the gradients in rice grains is essential to optimize the drying conditions. In this sense, the current study aims to analyze the moisture removal and its effects on the stress cracking and the number of brown rice grains (BRSMG CONAI variety) at the temperatures of 60 and 80°C.
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Anisimov, Alexander V., Felix Ya Rudik, and Boris P. Zagorodskih. "Technological Improvements of Grain Preparation for Milling in Small Enterprises." Mordovia University Bulletin, no. 4 (December 28, 2018): 603–23. http://dx.doi.org/10.15507/0236-2910.028.201804.603-623.
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Introduction. In small enterprises with simplified technological process of graded milling, preparations, which involve cleaning, peeling and moistening grain, play an essential role for ensuaring high quality of graded flour. Modern equipment for the low-productive mills implies only dry cleaning of grains in an abrasive machine with their further cold conditioning. The equipment designed for graded milling with deep multiple cleaning, washing and hydrothermal treatment is not possible. It significantly increases the cost of flour. The aim of the study is to increase both qualitative and quantitative indicators of graded flour in small enterprises through peeling and drying of grains before milling. Materials and Methods. The quality analyses of grain processing according to such indicators as ash content (whiteness), moisture, quantity of fractured grains were carried out according to State Standards of the Russian Federation and the methods established in science and practice. The degree of peeling was determined by the whiteness indicator with a photoelectric whitener SKIB-M (GOST 26361-2013 “Flour. Test method for whiteness”). Grain moisture was determined according to GOST 13586.5-2015 by the drying cabinet DEC-3M (drying electrical cabinet, model type 3M). The number of fractured grains was determined according to GOST 30483-97. Results. The research result revealed the dependence of grain processing on the technical aids. А combined peeling–drying machine was developed on this principle. The authors have developed rational operations of grain processing, which increase the whiteness of the received flour on average 4–7 conventional units. The standard instrument for whiteness definition has been studied and set. According to the given results optimal operating parameters for grain processing before milling have been developed: machine productivity (Q = 700 kg/h); the period of grain processing (t = 72 s.); optimum moisture content (from the point of view of obtained flour whiteness) of grains received for milling (W = 14 %); radiant power (P = 1 000 W). Conclusions. The research proved the fact that peeling of grains is one of the most effective ways of increasing the grade of end products of small enterprises with simplified technological process of graded milling. The efficiency of peeling seeds of wheat with humidity higher than 16 % decreases that speaks for the need to dry grains. The authors of the article introduce the equipment and technology for grain processing before graded milling, which provide grain peeling and, if necessary, drying. The operating parameters of the peeling-drying machine for preparation of grains for milling have been determined. The developed technology provide, if necessary, drying the remoistened grain to necessary standards that gives the chance to produce high-quality flour from the grains processed hydrothermally without processing moisture conditions required. The machine productivity in the mode of drying should be connected with the power of microwave infrared radiation, and its time and power should be limited to a maximum permissible grain temperature, which does not exceed 60 ºС. Keywords: peeling, whiteness, moisture, drying, preparation of grain for grinding For citation: Anisimov A. V., Rudik F. Ya., Zagorodskih B. P. Technological Improvements of Grain Preparation for Milling in Small Enterprises. Vestnik Mordovskogo universiteta = Mordovia University Bulletin. 2018; 28(4):603–623. DOI: https://doi.org/10.15507/0236-2910.028.201804.603-623 Acknowledgments: The study was conducted as part of an agreement with the Foundation for Assistance to Development of Small Enterprises in Scientific and Technical Sphere (No. 180GS1 / 6784, 25 December 2014) under the “START-1” program together with “Healthy Food” LLC.
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Dhaliwal, AS, and HL Sharma. "Changes in Some Carbohydrate Fractions and Some Related Enzymic Activities in Plump and Shrivelled Triticale and in Wheat Grains." Functional Plant Biology 13, no. 2 (1986): 249. http://dx.doi.org/10.1071/pp9860249.
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Activities of α-amylase (EC 3.2.1.1), β-amylase (EC 3.2.1.2), soluble ADPglucose-starch synthase (EC 2.4.1.21), starch phosphorylase (EC 2.4.1.1), sucrose synthase (EC 2.4.1.13) and invertase (EC 3.2.1.26), and amounts of reducing sugars, total soluble sugars and starch, were studied in the developing grains of wheat and triticale lines. A triticale line (TL1) with shrivelled grains contained a low starch content, increased reducing and total soluble sugars during the final grain-filling period as well as a higher moisture at maturity than wheat and a plump-grain triticale line (TL2). The overall activities of soluble ADPglucose-starch synthase and starch phosphorylase remained lower and that of α- and β-amylases higher in TL1 than wheat and TL2 throughout grain development. The higher amylolytic activity retained during the final maturation period appears to be at least partly due to the higher moisture content of the grain in the triticale line TL1 with shrivelled grains.
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ZAMBIASI, MILENA ANA, PAULO RICARDO DE JESUS RIZZOTTO JÚNIOR, RAFAEL GOMES DIONELLO, LAURI LOURENÇO RADUNZ, and INDIANARA MULLER. "PHYSICAL AND TECHNOLOGICAL QUALITY OF CORN KERNELS DURING STORAGE AS A FUNCTION OF PRE-CLEANING." Revista Brasileira de Milho e Sorgo 19 (June 23, 2020): 14. http://dx.doi.org/10.18512/rbms2020v19e1159.
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Maize is the most cultivated and consumed cereal in Brazil, which is the world’s third largest producer of this grain. Estimated losses due to pest attack, especially pest insects and fungi, represent approximately 10% of the total production. The pre-cleaning phase allows the reduction of foreign matters and impurities (IM) present in the grains, which are used as food and shelter for stored grain pests. The aim of this work was to evaluate the effect of pre-cleaning on the physical and technological quality of corn kernels, during bulk storage in a silo-dryer. The grains were harvested with a combine harvester, at a moisture content of around 17% and 0.84% of IM. Part of the grains was submitted to pre-cleaning and subsequently stored in a silo, while the other part was directly stored in a silo-dryer. After pre-cleaning, the grains were sent to the silo-dryer with 0.12% of IM. Drying was carried out by blowing natural air through the grain and the process was completed when the grains reached approximately 12% moisture content. It was concluded that pre-cleaning provided lower hygroscopic equilibrium moisture, reduced the presence of insect damaged grains, and improved the technological classification of grains during storage.
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Kimatu, Josphert Ngui, Wincaster Makoani Mutuli, Jane Wanja Mbiri, Benard Mweu, Nahashon Musimba, Thomas Akuja, and Simon Nguluu. "The dynamics of physical properties, seed moisture content, market economics and post harvest management of six bean varieties (Phaseolus vulgaris) grown in the sub Saharan region in Africa." JOURNAL OF ADVANCES IN AGRICULTURE 3, no. 1 (June 29, 2014): 101–9. http://dx.doi.org/10.24297/jaa.v3i1.5406.
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Managing grain moisture content is important because maximum economic return can be achieved by marketing at a certain moisture level of grain. Post-harvest management dictates that grains must be dried to certain levels to avoid development of fungal and insect problems, respiration and germination. However, over drying can also a lead to economic losses. Most farmers are aware of fungal development in moist grains but few are aware that they make less profit by over drying. Moreover, there are also bean varieties which genetically retain more water than others and hence can be safer and have more economic returns compared to others. But, this also should be matched to the rain pattern in a growing region. We compared six varieties of beans (KAT B1, KAT B9, and Kakunzu (KKZ), Rose Coco (GLP2/RCC), Kenya Tamu and KAT X56) grown in the South Eastern region of Kenya and found significant differences in dry moisture content, physical properties and grain weights. The Rose Coco and KAT X56 varieties had the highest moisture content retention but the KKZ variety the lowest. This explained why KKZ is favoured more by famers in arid areas with less rain during fruit maturation.
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KIRKKARI, A.-M., P. PELTONEN-SAINIO, and P. LEHTINEN. "Dehulling capacity and storability of naked oat." Agricultural and Food Science 13, no. 1-2 (December 4, 2008): 198. http://dx.doi.org/10.2137/1239099041837969.
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Harvested naked oat is not completely hulless. Hull content of various cultivars ranged between one and six percent. Genotype and environment control expression of nakedness. Using different threshing settings at different grain moisture contents, it was investigated whether grain moisture at threshing and combine harvester settings affected hull content and its relationship to germination capacity. Naked groats were stored at room temperature and analysed for protein content and fatty acid composition to determine storability. Grain moisture content at threshing had contrary effects on hull content and degree of hull retention in different years. Small grains tended to retain hulls more tightly during threshing. Grain filling capacity appears to be the dominant factor determining degree of nakedness rather than stage of maturity. The postulated protective nature of hulls was confirmed only for cultivar Lisbeth. Highly viable samples of grain of cv. Lisbeth, threshed at normal settings, contained a higher percentage of hulls than those with low germination capacity, while for cv. Bullion, a protective effect of the hulls was not evident. Grain moisture content at threshing did not affect protein content of naked cultivars, but some differences in fatty acid composition were recorded. Changes in lipid composition and volatile oxidation products during storage of groats were relatively moderate, indicating no major problems related to storage when naked oat was dried well.;
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Nicolin, Douglas J., Gisleine E. C. da Silva, Regina Maria M. Jorge, and Luiz Mario M. Jorge. "Numerical Solution of a Nonlinear Diffusion Model for Soybean Hydration with Moving Boundary." International Journal of Food Engineering 11, no. 5 (October 1, 2015): 587–95. http://dx.doi.org/10.1515/ijfe-2015-0035.
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Abstract Variable diffusivity and volume of the grains are taken into account in the diffusion model that describes mass transfer in soybean hydration. The variable space grid method (VSGM) was used to consider the increase in grain size, and the diffusivity was considered an exponential function of the moisture content. An equation for the behavior of the grain radius as a function of time was obtained by global mass balance over the soybean grain and the differential equation considered that the increase in radius happens due to the influence of the convective and diffusive fluxes at the surface of the grains. The model was solved by an explicit numerical scheme which presented satisfactory results. The results showed the behavior of moisture profiles obtained as a function of time and radial position and also showed how the grain radius increased with time and changed the solution domain of the diffusion equation.
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Wang, Wang Ping. "Design and Development of a Resistive Grain Moisture Meter." Applied Mechanics and Materials 716-717 (December 2014): 961–64. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.961.
Full textAbstract:
Moisture measurement of grain is an important aspect of its quality indicators. In this paper, a resistive grain moisture meter device was developed and the measuring principle and adopted scheme were illustrated. The structures and work principles of the resistance-to-frequency switching circuit and the temperature compensation circuit were introduced in detail. Finally, this paper gives a brief introduction to the mechanical grain sample. The resistive grain moisture meter has the advantages of fast testing speed, high precision and low cost, it’s one of the important tools in measuring grain moisture.
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Islam, MM, S. Ahmed, TA Urmi, MS Raihan, and MR Islam. "Evaluation of Moisture Regime on Agronomic Traits of Rice Genotypes." Annals of Bangladesh Agriculture 25, no. 1 (March 21, 2022): 89–104. http://dx.doi.org/10.3329/aba.v25i1.58158.
Full textAbstract:
Drought stress is a major constraint to the production and yield stability of crops. Rice (Oryza sativa L.) is one of the most important cereals and considered as a drought sensitive crop species. A field experiment was conducted in the vinylhouse of the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh, during March - August 2018 to evaluate the performance of 38 rice genotypes under control and drought conditions. The experiment was laid out in a completely randomized design containing two water regimes with three replications. The water regimes were well-watered and induced moisture stress conditions. Multivariate and principal components analyses revealed that different plant characters, viz. plant height, total tillers hill-1, panicle number hill-1, length of panicle, filled grains panicle-1, 1000-grain weight, grain yield plant-1 and straw weight plant-1 showed a wide range of variation due to variation in moisture level. Correlation study and biplot analysis considering PC1 and PC2 explained that grain yield was positively correlated with filled grain panicle-1, total tiller hill-1, panicle number hill-1 and 1000-grain weight. Based on the grain yield plant-1 (g) and others agronomic characters, the genotypes BU Acc 33 (26.68 g), BU Acc 30 (21.81 g), and BU Acc 21 (20.58 g) were identified as promising genotypes for developing drought tolerant variety (ies). Ann. Bangladesh Agric. (2021) 25 (1) : 89-104