Academic literature on the topic 'Bariey xylanase'

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Journal articles on the topic "Bariey xylanase"

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Korotkova, O. G., E. A. Rubtsova, I. A. Shashkov, et al. "Comparison Analysis of the Composition and Properties of Fodder Enzyme Preparations." Kataliz v promyshlennosti 18, no. 4 (2018): 72–78. http://dx.doi.org/10.18412/1816-0387-2018-4-72-78.

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The composition and properties of a wide range of domestic and foreign enzyme preparations (EP), used as additives to feeds of farm animals and poultry, are analyzed. The content of the main active enzymes – endoglucanases (beta-glucanases), cellobiohydrolases and xylanases, leading to biocatalytic destruction of non-starch polysaccharides, which are anti-nutritional factors of feeds and causing their incomplete digestion, is determined. It is shown that, based on the data on the component composition and the level of different types of activity, the studied enzyme preparations can be divided
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Shi, Pengjun, Jian Tian, Tiezheng Yuan, et al. "Paenibacillus sp. Strain E18 Bifunctional Xylanase-Glucanase with a Single Catalytic Domain." Applied and Environmental Microbiology 76, no. 11 (2010): 3620–24. http://dx.doi.org/10.1128/aem.00345-10.

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ABSTRACT Xylanases are utilized in a variety of industries for the breakdown of plant materials. Most native and engineered bifunctional/multifunctional xylanases have separate catalytic domains within the same polypeptide chain. Here we report a new bifunctional xylanase (XynBE18) produced by Paenibacillus sp. E18 with xylanase and β-1,3-1,4-glucanase activities derived from the same active center by substrate competition assays and site-directed mutagenesis of xylanase catalytic Glu residues (E129A and E236A). The gene consists of 981 bp, encodes 327 amino acids, and comprises only one catal
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Lin, Chaoyang, Zhicheng Shen, Tingheng Zhu, and Wensheng Qin. "Newly Isolated Penicillium ramulosum N1 Is Excellent for Producing Protease-Resistant Acidophilic Xylanase." Journal of Molecular Microbiology and Biotechnology 25, no. 5 (2015): 320–26. http://dx.doi.org/10.1159/000439170.

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<i>Penicillium ramulosum</i> N1 was isolated from decaying wood. This strain produces extracellular xylanases and cellulases. The highest activities of xylanases (250 U/ml) and carboxymethyl cellulose (CMCase; 6.5 U/ml) were produced when 1% barley straw was added as a carbon source. The optimum temperature and pH for xylanase activity was 55 and 3.0°C, respectively. The xylanases exhibited strong protease resistance. CMCase revealed maximum activities at pH 3.0 and in the range of 60-70°C. Filter paper activity was optimally active at pH 5.0 and 55°C. The zymograms produced by the
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Benjavongkulchai, E., and M. S. Spencer. "Barley aleurone xylanase: its biosynthesis and possible role." Canadian Journal of Botany 67, no. 2 (1989): 297–302. http://dx.doi.org/10.1139/b89-043.

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The synthesis of barley (Hordeum vulgare L. cv. Himalaya) aleurone xylanase was found to be dependent on both gibberellic acid (GA3) and Ca2+, but inhibited by cycloheximide and cordycepin. Studies using density labeling of barley aleurone layers showed that xylanase was synthetized de novo in response to GA3 and Ca2+. Neither GA3 nor Ca2+ alone induced a large increase in xylanase activity. The concentration of Ca2+ required for maximum xylanase induction was 5 – 40 mM. Xylanase activity was found to develop simultaneously with that of α-amylase in the incubation medium during the first 24 h
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Mathlouthi, N., M. Larbier, M. A. Mohamed, and M. Lessire. "Performance of laying hens fed wheat, wheat-barley or wheat-barley-wheat bran based diets supplemented with xylanase." Canadian Journal of Animal Science 82, no. 2 (2002): 193–99. http://dx.doi.org/10.4141/a01-047.

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Two experiments were conducted to study the response of laying hens to a commercial enzyme preparation (Safizyme XP20) containing 70 000 IU g-1 xylanase. In the first experiment, 270 laying hens (ISA Brown), aged 28 wk, were fed basal diets of wheat (W), wheat-barley (WB) or wheat-barley and wheat bran (WBB) without xylanase, or supplemented with 1400 IU xylanase kg-1 in 3 × 2 factorial arrangement. In the second experiment, 180 ISA Brown laying hens, aged 28 wk, were assigned to 2 × 2 factorial arrangement and fed wheat-based diets containing 2753 or 2653 kcal metabolizable energy (ME) kg-1 w
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Ontañon, Ornella M., Soma Bedő, Silvina Ghio, et al. "Optimisation of xylanases production by two Cellulomonas strains and their use for biomass deconstruction." Applied Microbiology and Biotechnology 105, no. 11 (2021): 4577–88. http://dx.doi.org/10.1007/s00253-021-11305-y.

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Abstract One of the main distinguishing features of bacteria belonging to the Cellulomonas genus is their ability to secrete multiple polysaccharide degrading enzymes. However, their application in biomass deconstruction still constitutes a challenge. We addressed the optimisation of the xylanolytic activities in extracellular enzymatic extracts of Cellulomonas sp. B6 and Cellulomonas fimi B-402 for their subsequent application in lignocellulosic biomass hydrolysis by culture in several substrates. As demonstrated by secretomic profiling, wheat bran and waste paper resulted to be suitable indu
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Beauchemin, K. A., L. M. Rode, and V. J. H. Sewalt. "Fibrolytic enzymes increase fiber digestibility and growth rate of steers fed dry forages." Canadian Journal of Animal Science 75, no. 4 (1995): 641–44. http://dx.doi.org/10.4141/cjas95-096.

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Seventy-two steers (289 kg) were offered ad libitum cubed alfalfa hay, cubed timothy hay, or barley silage supplemented with incremental levels of xylanase (IU) and cellulase (FPU), combined in a ratio of 1 IU:0.04 FPU. For alfalfa hay, low and moderate levels (900 to 4733 IU kg−1 DM) increased weight gain by up to 30% (P < 0.10), whereas, for timothy hay, the highest level (12 000 IU kg−1 DM) improved gain (P < 0.10) by 36%. No response to enzymes was observed for barley silage. Fibrolytic enzymes improve weight gain of cattle but optimal enzyme levels depend upon the type of forage. Ke
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Simmins, P. H., та J. Wiseman. "Performance of grower/finisher pigs fed barley and wheat -based diets containing different levels of a β-glucanase and xylanase enzyme combination". Proceedings of the British Society of Animal Science 2003 (2003): 65. http://dx.doi.org/10.1017/s1752756200012242.

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Exogenous enzymes have been used in pig feed to reduce the antinutritional factors in the cereal components of the diets and, as a consequence, improve energy and protein digestibility. The predominant fibre components in barley are soluble β-glucans and insoluble arabinoxylans, both of which are known to have anti-nutritional effects in the pig but through different mechanisms. In wheat both soluble and insoluble arabinoxylans are relevant, for the same reasons (Partridge, 2001). Consequently a product with a combination of β-glucanase and xylanase may be necessary to elicit a performance imp
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Nsereko, V. L., D. P. Morgavi, K. A. Beauchemin, and L. M. Rode. "Inhibition of ruminant feed enzyme polysaccharidase activities by extracts from silages." Canadian Journal of Animal Science 80, no. 3 (2000): 523–26. http://dx.doi.org/10.4141/a00-015.

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Extracts from 14 barley silages inhibited endo-1, 4-β-xylanase and α-amylase activities of a ruminant feed enzyme additive from Trichoderma longibrachiatum by 23 to 50% but had little effect on cellulase activity. The inhibitory factor(s) were <10 kDa in size and were stable to autoclaving. These observations may explain why feed enzymes are generally less effective when applied to silages than when applied to dry feeds. Key words: Silage, fibrolytic enzymes, Trichoderma, xylanase, inhibitors
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Benjavongkulchai, E., and M. S. Spencer. "Purification and characterization of barley-aleurone xylanase." Planta 169, no. 3 (1986): 415–19. http://dx.doi.org/10.1007/bf00392139.

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Dissertations / Theses on the topic "Bariey xylanase"

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Yang, Yang. "Effects of Feeding Hulless Barley (Hordeum vulgare L.) and Supplementing a Fibrolytic Enzyme on Production Performance, Nutrient Digestibility, and Milk Fatty Acid Composition of Lactating Dairy Cows." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/85794.

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The overall objective of this study was to evaluate the effects of feeding hulless barley and supplementing a xylanase enzyme on production performance and nutrient utilization of lactating dairy cows. In study 1, we evaluated production performance, milk fatty acid composition, and nutrient digestibility in high-producing dairy cows consuming diets containing corn and hulless barley in different proportions as the grain source. We hypothesized that a plausible reduction in production performance would be explained by an altered rumen function, which would be reflected in a reduction of the pr
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Banik, Mitali. "Structure, hormonal regulation and chromosomal location of genes encoding barley (1-4)-B-xylan endohydrolases." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phb217.pdf.

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Bibliography: leaves 127-166. This study describes the isolation, sequencing and characterization of two cDNAs encoding barley (1-4)-B-xylanase isoenzymes X-I and X-II and the gene corresponding to isoenzyme X. The results of genomic Southern blot analyses indicate that the barley (1-4)-B-xylanase gene family consists of at least 3 genes which are mapped to a single locus on the long arm of chromosome 7(5H). The cDNA is used to monitor tissue-specific expression, developmental regulation and hormonal control of the (1-4)-B-xylanase genes.
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Emami, Kamaledin. "Two xylanase genes from Cochliobolus sativus (Bipolaris sorokiniana), and their conservation among Bipolaris isolates from barley, maize, sorghum, and wheat." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265546.

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Bryson, Brian L. "EFFECT OF EXOGENOUS ENZYMES ON APPARENT METABOLIZABLE ENERGY VALUE OF BARLEY IN SWINE AND BROILER CHICKENS." UKnowledge, 2018. https://uknowledge.uky.edu/animalsci_etds/92.

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The objective of this thesis was to evaluate the effect of exogenous enzyme supplementation, phytase and xylanase-glucanase, on AME value of barley in poultry and swine. In the first study, 280 broilers were assigned 1 of 8 treatments. Barley inclusion in the diet resulted in decreased (P < 0.05) performance. There was a treatment × phytase × xylanase-glucanase interaction for dry matter retention with birds fed the corn-SBM-barley diet supplemented with phytase and xylanase-glucanase having higher (P < 0.05) DM retention compared to birds fed corn-SBM-based diet with only xylanase-glucanase s
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Hakachite, Christopher. "[EMBARGOED] Analysis of cereal cyst nematode resistance mechanisms in barley." Thesis, 2018. http://hdl.handle.net/2440/120235.

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Barley (Hordeum vulgare) is a widely grown, valuable cereal crop that is affected by various pests including nematodes. The cereal cyst nematode (CCN) Heterodera avenae is the most widely distributed and damaging species of nematodes to cereal crops grown in temperate regions, including Australia, and is estimated to cause global annual losses of around $160 billion. The use of cultivars resistant to H. avenae is the preferred approach for nematode management and four resistance loci, Rha1, Rha2, Rha3 and Rha4, have been mapped. The Rha4 locus was mapped in the Galleon/Haruna Nijo population t
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Ismail, Ismail Ahmed. "Characterisation of proteinaceous toxins isolated from Pyrenophora teres f. teres." Thesis, 2013. http://hdl.handle.net/2440/91307.

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Pyrenophora teres f. teres (Ptt) causes net form net blotch disease (NFNB), an important disease of barley in Australia and worldwide. This fungus uses proteinaceous toxins to cause necrosis and different isolates of Ptt differ in their ability to cause symptoms on different cultivars of barley. However, little is known about the roles of pathogen growth and individual toxins in symptom development. This project therefore aimed to determine whether there is a relationship between toxin production, fungal growth and virulence in NFNB. Conidial germination, extent of fungal growth and culture fi
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Gibson, Catherine Elizabeth. "The expression of hydrolytic enzymes in germinating barley grain." Thesis, 2017. http://hdl.handle.net/2440/114266.

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Modification of the barley grain endosperm in germination is fundamental to successful plant growth but also has important ramifications for down-stream industrial uses of barley, particularly in the malting and brewing industries. There are a battery of enzymes that are involved in the modification process but the sites of synthesis and action of only of a few of these have been described in detail and most have only been studied in isolated tissues. The development of a sensitive and robust in situ mRNA hybridization (ISH) procedure, which allows the detection of specific transcripts repres
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Book chapters on the topic "Bariey xylanase"

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García-Aparicio, María P., Mercedes Ballesteros, Paloma Manzanares, Ignacio Ballesteros, Alberto González, and M. José Negro. "Xylanase Contribution to the Efficiency of Cellulose Enzymatic Hydrolysis of Barley Straw." In Applied Biochemistry and Biotecnology. Humana Press, 2007. http://dx.doi.org/10.1007/978-1-60327-181-3_31.

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