Journal articles: 'Jatropha curcas seed oil'

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Wu, Jun, and Junhui Zhang. "Research and Development of Natural Vegetable Insulating Oil Based on Jatropha curcas Seed Oil." Energies 13, no. 17 (August 20, 2020): 4319. http://dx.doi.org/10.3390/en13174319.

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Jatropha curcas is a natural non-food resource with high oil-content seeds, that has attracted worldwide attention as it is an ideal renewable resource for the production of biofuels. With the increasing use of vegetable insulating oil in related industries, it is valuable to develop the vegetable insulating oils from Jatropha curcas seed oil. This study explores how to use Jatropha curcas seed oil to prepare high-quality natural vegetable insulating oil. A six-step process is first established according to the optimization results of alkali refining, activated clay treatment and alumina treatment of Jatropha curcas seed oil, combined with cold treatment, water washing and high temperature decompression treatment. Physicochemical and electrical performance tests show that most of the properties of the prepared vegetable insulating oil are significantly improved compared with the original seed oil, and meet the standard requirements for vegetable insulating oil, especially with no sulfur corrosion, a breakdown voltage of 72 kV and an acid value (KOH, potassium hydroxide) of 0.012 mg/g.

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Abobatta, Waleed. "Jatropha curcas: an overview." JOURNAL OF ADVANCES IN AGRICULTURE 10 (February 28, 2019): 1650–56. http://dx.doi.org/10.24297/jaa.v10i0.8145.

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Jatropha curcas L. belongs to family Euphorbiaceae, Jatropha curcas is a valuable multi-purpose crop, historically it was used as medicine for wounds and leaves used as drinks against malaria, jatropha plants used to control soil degradation, alleviate erosion, desertification and increase soil fertility, however, in last decades there is more attention to use jatropha oil for produce biodiesel, Jatropha curcas is easily propagated by seeds or stem cutting, it is tolerant for drought for longtime, it is grow well with treated wastewater, also, it can be grown on marginal land. Jatropha curcas seed have about 32-40% valuable oil used to produce biofuel, therefore, it could be the source for biodiesel production particularly in arid and semiarid regions.

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Kurniawati, Dini, and Iis Siti Aisyah. "The Potent of Carrier Oil on Pretreatment of Crude Jatropha Curcas Oil." Journal of Energy, Mechanical, Material, and Manufacturing Engineering 5, no. 1 (May 31, 2020): 45. http://dx.doi.org/10.22219/jemmme.v5i1.12336.

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Jatropha curcas oil is a seed oil or bio-oil, which has advantages compared to others plant’s seed-oil. The advantage of this oil is due to the fact that Jatropha oil does not compete with the food sector. In this research, the potential carrier oil testing was conducted to seek a way in improving the performance of Jatropha oil as lubricant oil, coolant or biodiesel. For this purpose, Jatropha oil was mixed with the other carrier oils in the variation of 0 – 45 %. Each variation was tested to obtain kinematic viscosity and density values. The results of this research was the carrier oils has the potential to be used as the mixing material since it can improve the physical properties of Jatropha oil, before the next process. Kinematic viscosity and density of Jatropha oil decreases as more percentage of mixed carrier oil was added.

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Premjet, Duangporn, Abraham Kusi Obeng, Hah Young Yoo, Seung Wook Kim, and Siripong Premjet. "Physicochemical Characterization of Jatropha podagrica Seed Oil for Potential Biodiesel Production and other Industrial Applications in Thailand." Sains Malaysiana 50, no. 1 (January 31, 2021): 85–92. http://dx.doi.org/10.17576/jsm-2021-5001-09.

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Jatropha is considered as one of the most promising potential oil sources for biodiesel production and other industrial applications. However, research on the potential of Jatropha seed oil is mainly focused on Jatropha curcas, with other species receiving little attention. The physicochemical properties of J. podagrica seed oil was studied to determine its potential as feedstock for biodiesel production and other industrial applications in Thailand. The seed oil was extracted with n-hexane from milled kernels using the soxhlet extractor and subsequently characterised for free fatty acids, iodine value, viscosity, saponification value, density, and acid value. The fatty acid profile of the seed oil was also analysed using gas chromatography (GC). Analysis of the physical properties of the J. podagrica seed kernel showed lower average physical characteristics when compared to those of J. curcas seed kernel. J. podagrica seeds had high oil content comparable to J. curcas oil content. The main fatty acid components of the seed oil were oleic acid (15%) and linoleic acid (70%). Generally, the results of the physicochemical analysis indicated that J. podagrica seed oil would be very useful for the production of soap and shampoo in Thailand. To produce biodiesel from the seed oil, a two-step acid-catalysed transesterification process would be appropriate.

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Müller, M., Š. Horníčková, P. Hrabě, and J. Mařík. "Analysis of physical, mechanical and chemical properties of seeds and kernels of Jatropha curcas ." Research in Agricultural Engineering 61, No. 3 (June 2, 2016): 99–105. http://dx.doi.org/10.17221/10/2014-rae.

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The research was performed to examine the physical, mechanical and chemical properties of seeds and kernels of Jatropha curcas. The test parameters were the dimensions of the seeds and kernels, required energy for oil extraction, determination of fatty acids in the oil by gas chromatography method, determination of the iodine value, determination of the acid value, determination of total polyphenols by the Folin & Ciocault reagent and determination of tocopherols and tocotrienols (vitamin E) by High-performance liquid chromatography. It was ascertained that the size of the seed and kernel varies considerably. Pressing of whole seeds needs more energy (50%) than pressing of kernels. From a chemical point of view it seems to be very appropriate for a production of biofuels. Jatropha curcas contains more polyphenols and vitamin E, which act as antioxidants, than the rape. Due to the low content of unsaturated fatty acids it is chemically suitable to replace the rape-seed oil with Jatropha curcas oil.

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Maurya, Ramanuj, Umesh Kumar, Ratna Katiyar, and Yadav Kumar. "Correlation and path coefficient analysis in Jatropha curcas L." Genetika 47, no. 1 (2015): 63–70. http://dx.doi.org/10.2298/gensr1501063m.

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Correlation and path analysis on 80 diverse accessions of J. curcas showed that seed weight/plant was significantly and positively associated with female flower/plant, male flower/plant, number of flower/plant, number of seed/plant, fruit weight/plant, seed width and negatively associated with oil content. Oil content was negatively and significantly correlated with all the traits studied with strong negative association with female flower/plant followed by male flower/plant, number of seed/plant, fruit weight/plant and seed weight/plant. Male flower per plant had the maximum direct effect on seed yield, followed by number of seeds/plant, seed width, number of fruits/plant and oil content. The results of the present investigations suggests that selection in J. curcas based on male flower/plant, number of fruit/plant, number of seeds/plant, seed width and oil content would be advantageous to achieve the desirable goals. The indirect selection through other component traits would also be rewarding to improve the seed yield.

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Cañadas-López, Álvaro, Diana Rade-Loor, and Carlos Molina-Hidrovo. "In situ assessment of Jatropha curcas germplasm under tropical dry forest conditions in Manabí-Ecuador." Revista Facultad Nacional de Agronomía Medellín 73, no. 3 (September 1, 2020): 9273–81. http://dx.doi.org/10.15446/rfnam.v73n3.85788.

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Jatropha germplasm accessions need an assessment of their traits to evaluate the nature and magnitude of the genetic variability among accessions. The objective of this research was to evaluate the phenotypic behavior of 130 Jatropha curcas L. (Jatropha) accessions and the genetic variability of selected Jatropha accessions. The selected variables were assessed between 2008-2014 based on the number of fruits per tree (FP), the number of seeds per fruit (SpF), weight of 100 dry seeds (100SW), seed length (SL), seed width (SW), smallest deviation standard as regular seed production (RP), highest deviation standard as irregular seed production (IP), seed oil content (Oil), seed production in g per tree (SP). Correspondence Analysis techniques were also applied in selected elite Jatropha accessions. The genotypic and phenotypic correlation coefficient between seed length, seed width, 100-seed weight and oil content for selected Jatropha accessions were applied. Variance, genotypic and phenotypic coefficients of variation, heritability (broad-sense) and genetic advance were calculated for several Jatropha phenotypic characteristics. CP041, CP052, CP037, CP054, CP060, CP122, CP118, CP120, CP121 INIAP Jatropha accessions were selected basically for SP and FP. A high statistically significant correlation (genotypic and phenotypic) between seed length – seed width was obtained from the chosen Jatropha accessions. Genetic association in the characteristics of growth and production highlighted the low phenotypic diversity in the Jatropha Portoviejo Research Station (EEP) of the National Institute for Agricultural and Cattle Ranching Research (INIAP) germplasm bank. There is an urgent need to improve the germplasm resource by obtaining new accessions, mainly from countries considered as centers of origin of the species.

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Ružbarský, Juraj, Miroslav Müller, Jan Mareček, and Milan Geršl. "Jatropha curcas – Analysis of Gross Calorific Value." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 62, no. 6 (2014): 1381–84. http://dx.doi.org/10.11118/actaun201462061381.

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In recent years biofuels have obtained a considerable interest, due to the implementation of ruling and gradual replacement of fossil fuels. One of production steps at gaining the oil is a pressing process. Wastes come into being from this process. These wastes are used as feed, fertilizer prospectively as fuel. A contemporary scientific literature pays attention namely to one of prospective produces which is a produce of the tropical and subtropical zones Jatropa curcas. Tests were performed at Jatropha Curcas seeds of a brown colour (that means gnaw). The aim of a research is an analysis of Jatropa curcas seed from the utilization point of view of the gross calorific value. The basic instrument to evaluate the gross calorific value of each variant of the experiment was a calorimeter PARR 6200 and digital scales for accurate laboratory weighing.

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S, Bilal. "Production of biolubricant from Jatropha curcas seed oil." Journal of Chemical Engineering and Materials Science 4, no. 6 (September 30, 2013): 72–79. http://dx.doi.org/10.5897/jcems2013.0164.

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Makinde, Aderemi I., Kehinde O. Oyekale, and David S. Daramola. "Impact of Seed Size on the Seedling Vigour, Dry Matter Yield and Oil Content of Jatropha (Jatropha curcas L.)." Journal of Agricultural Science 12, no. 3 (February 15, 2020): 197. http://dx.doi.org/10.5539/jas.v12n3p197.

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Seed size is a trait of the plant that affects seed germination and seedling survival. This study aims to assess the growth response of J. curcas to different seed sizes. A pot experiment was conducted to evaluate the effects of J. curcas seed sizes on the seedling vigour and seed component. The seeds were fractioned into three sizes visually into: large, medium and small and by 1000 seeds weight (SW). Seedling vigour was assessed by: germination % (G%), seedling length cm (SL), seedling vigour index, SVI, seedling growth rate, SGR, and speed of germination, SOG as well as proportion of cake, shell and oil content (OC) expressed as% of the seed. Results obtained shows that G% and the SOG were not affected by seed sizes but by other factors within the seed. However, seedling vigour expressed as SL, SVI and SGR increased significantly (P ≤ 0.05) with increase in seed sizes. Proportion of cake, shell and oil component of J. curcas seeds increased with increasing seed sizes while 60% of the seed is made up of the cake from where the oil is extracted. Dry matter yield, DMY significantly (P ≤ 0.05) increased with increase in seed size from 6.41 g/plant in large seeds to 2.61 g/plant in small seeds. There is positive and strong significant correlation between, SW and DMY (r = 0.91**), yield increase (r = 0.82**), OC (r = 0.85**), % cake (r = 0.94**). Findings revealed that larger seed had higher potential of producing vigorous plants with eventual high crop yield and higher OC.

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Puspitaningtyas, Indah, Syaiful Anwar, and Karno Karno. "Perkecambahan benih dan pertumbuhan bibit jarak pagar (Jatropha curcas Linn.) dengan invigorasi menggunakan zat pengatur tumbuh pada periode simpan yang berbeda." Journal of Agro Complex 2, no. 2 (June 10, 2018): 148. http://dx.doi.org/10.14710/joac.2.2.148-154.

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Jatropha curcas is a plant that is used as an alternative energy for fossil fuel replacement because of it’s high oil content. Jatropha curcas seeds have 30-40% oil content. The purpose of the study was to improve the seed quality and to enhance seedling growth of Jatropha curcas after storage using plant growth regulator. This study used factorial design based on Completely Randomized Design with two factors and 3 replications. The first factor was seed storage which consist of 2 levels : A1 = seed storage in 2015, A2 = seed storage in 2016. The second factor was plant growth regulator level which consists of 6 levels : B1=GA+NAA 0 ppm, B2= GA+NAA 20 ppm, B3= GA+ NAA 40 ppm, B4= GA+NAA 60 ppm, B5 = GA+NAA 80 PPM, B6 = GA+NAA 100 ppm. Parameters measured were seed germination, vigor index, growth rate, plant height and the number of leaves. The data were analyzed statistically by analysis of variance and followed by Tukey test and Polynomial Orthogonal. The result showed that seed germination, vigor index and growth rate were significantly affected by storage treatment and invigoration using plant growth regulator treatment. Invigoration using auxin and gibberellic acid 40 ppm has the highest result of seed germination, vigor index and growth rate. There was no influence of seed storage and invigoration with plant growth regulator treatment on plant height and number of leaves. Keywords : Jatropha curcas, invigoration, plant growth regulator.

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SENOU, Hamidou, Cai X. ZHENG, Gabriel SAMAKE, Mamadou B. TRAORE, Fousseni FOLEGA, and Bakary M. TRAORE. "Quantification of Seed Oil Content and Fatty Acid Profile of Jatropha cucas L. from Guizhou, China." International Journal of Biology 8, no. 2 (March 24, 2016): 92. http://dx.doi.org/10.5539/ijb.v8n2p92.

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The methyl esters of fatty acids composition of the oil from jatropha curcas seeds were analyzed by gas chromatography-mass spectrometer GC-MS. Fourteen components were found to be representative with 99.52% of the total content of seed oils. The main constituents were unsaturated fatty acids (71.93%) and saturated fatty acids (27.59%). For the saturated fatty acids composition such as palmitic and stearic acid, the rate was 15.80% and 10.79%, respectively. Linoleic acid (39.58%) and oleic acid (30.41%) were obtained in highest concentration among the unsaturated fatty acids identified in the seeds oil of Jatropha curcas from Guizhou. This value also justifies the fluidity of the oil at room temperature. A high percentage of polyunsaturated fatty acids (39.58%) and a slightly lower rate of monounsaturated fatty acids (32.35%) were also observed. The seed oils profile of Guizhou Jatropha curcas presents the desirable fatty acid C14 to C18 and interesting features for the biodiesel production.

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Bombo, Katlego, Tumeletso Lekgoba, Oluwatosin Azeez, and Edison Muzenda. "Production of Biodiesel from Moringa Oleifera and Jatropha Curcas Seed Oils over a Modified ZnO/Fly Ash Catalyst." Environmental and Climate Technologies 25, no. 1 (January 1, 2021): 151–60. http://dx.doi.org/10.2478/rtuect-2021-0010.

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Abstract Methyl ester biodiesel was produced from Moringa Oleifera oil and Jatropha Curcas oil with the sole aim of assessing the feasibility of the feedstocks as viable sources of biodiesel in Botswana. Oil extraction and transesterification were carried out under identical experimental conditions for both Jatropha Curcas and Moringa Oleifera biomass. Oil was extracted from seeds through a soxhlet extraction method using the solvent, n-hexane. The extracted oil was then trans-esterified at 60 °C using a methanol/oil ratio of 12:1 at a stirring rate of 350 rpm, 3 wt. % catalyst loading and 120 min reaction time. Zinc Oxide modified with fly ash was used as heterogeneous catalyst for the process. GC analysis results of biodiesels produced indicated that the highest biodiesel yield was obtained from Jatropha seed oil. Moringa biodiesel showed a greater proportion of docosanedioic acid while Jatropha biodiesel composed of oleic acid in larger proportions. Both oleic and docosanedioic acid are unsaturated methyl esters. The results obtained suggests Jatropha as the more suitable feedstock as compared to Moringa.

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Laosatit, Kularb, Patcharin Tanya, Narathid Muakrong, and Peerasak Srinives. "Development of interspecific and intergeneric hybrids among jatropha-related species and verification of the hybrids using EST–SSR markers." Plant Genetic Resources 12, S1 (July 2014): S58—S61. http://dx.doi.org/10.1017/s1479262114000276.

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Jatropha curcas (jatropha) is an important non-edible oilseed crop with potential as a raw material for biofuel production. Although J. curcas has 30–35% oil content in its seeds, it has low seed yield ( < 2 ton/ha) and thus cannot become an economically viable crop. However, jatropha has many related species and genera such as J. integerrima, J. multifida, J. podagrica and Ricinus communis that are suitable for interspecific and intergeneric hybridization. The desirable features that can be obtained from these species are high number of inflorescences from J.integerrima, large fruit size from J. multifida, high oil content from J. podagrica and raceme-type inflorescence from R. communis. We were initially successful in producing hybrids between J. curcas and these related species. Hybridity was confirmed using expressed sequence tag (EST)–simple sequence repeat markers developed from the J. curcas EST database.

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Yadav, Aparna, Sudhakar Prasad Mishra, P. S. Kendurkar, Ajay Kumar, and Ramanuj Maurya. "Physicochemical characterization of Jatropha oil seed and suitability as biodiesel feedstock." Tropical Plant Research 7, no. 3 (December 31, 2020): 581–86. http://dx.doi.org/10.22271/tpr.2020.v7.i3.071.

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The physiocochemical properties of Jatropha curcas kernel oils were characterized as potential biodiesel, including oil yield per plant, seed oil content, kernel oil content, acid value, iodine value, saponification value and cetane number. Twenty-five accessions of Jatropha curcas were used for oil content measurement sranging from 21.14 to 40.66 %with a mean value of 32.85% and Kernels oil 48.59 to 60.45 % with a mean value of 56.28 %. The seed index ranged significantly from a seed weight of 45.45 to 64.45 g. Oil yields per plant ranged from 0.44 to 2.85 kg with a mean value of 1.70 kg per plant, respectively. To understand the properties of acid value, iodine value, saponification and cetane number, experimental physio-chemical studies were performed. Since these properties are critical for determining the current oil condition. The current study confirms that accession seeds performed higher than international saponification value, iodine value and cetane number standards may be an important source for meeting potential energy requirements.

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Gupta, Sanjay Mohan, Mohommad Arif, and Zakwan Ahmed. "Antimicrobial activity in leaf, seed extract and seed oil of Jatropha curcas L. plant." Journal of Applied and Natural Science 3, no. 1 (June 1, 2011): 102–5. http://dx.doi.org/10.31018/jans.v3i1.164.

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The study on antibacterial and antifungal efficacy of leaf and seed extract and seed oil of Jatropha curcas reveals that the inhibition zones ranged from 7 to 22 mm for antibacterial and from 10 to 20 mm for antifungal activity. Among all extracts tested, seed extract showed significant activity while leaf extract showed intermediate activity against gram-positive bacteria. In case of gram-negative bacteria, seed extract and seed oil has shown some moderate activity whereas, no activity was observed in leaf extract. In case of fungal cultures, among all test extracts only seed extract showed significant activity against Mucor and Tilletia fungus, while in case of Rhizopus no activity was observed against all test extracts. These results indicated the possibility of using Jatropha extract and seed oil for medicinal uses and natural food preservation.

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Akhihiero, Ejiro Thelma, Bamidele Victor Ayodele, May Ali Alsaffar, T. O. K. Audu, and E. O. Aluyor. "Kinetic Studies of Biodiesel Production from Jatropha curcas Oil." Journal of Engineering 27, no. 4 (March 29, 2021): 33–45. http://dx.doi.org/10.31026/j.eng.2021.04.03.

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The world is confronted with the twin crisis of fossil fuel depletion and environmental degradation caused by fossil fuel usage. Biodiesel produced from renewable feedstocks such as Jatropha seed oil or animal fats by transesterification offers a solution. Although biodiesel has been produced from various vegetable oils such as Jatropha seed oil, the reaction kinetics studies are very few in literature, hence the need for this study. Jatropha curcas seed oil was extracted and analyzed to determine its free fatty acid and fatty acid composition. The oil was transesterified with methanol at a molar ratio of methanol to oil 8:1, using 1% sodium hydroxide catalyst, at different temperatures ranging from 32oC to 65oC, at atmospheric pressure. The order of the reactions with respect to the triglyceride's disappearance in the forward reaction at the chosen temperatures was found to be pseudo-first-order and found to be first-order for the reaction at 32oC. The rate constants of the three consecutive reaction steps at 65oC, namely, triglyceride to diglyceride, diglyceride to monoglyceride, and monoglyceride to glycerol, were found to be 0.422 min-1 0.117 min-1, and 0.037min-1, respectively. Their corresponding activation energies in J/mol were 22.165, 3.136, and 19.770, respectively.

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Rahman, Muhammad M., and Anil N. Netravali. "Micro-fibrillated cellulose reinforced eco-friendly polymeric resin from non-edible ‘Jatropha curcas’ seed waste after biodiesel production." RSC Advances 6, no. 52 (2016): 47101–11. http://dx.doi.org/10.1039/c6ra07749h.

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Eco-friendly polymeric resin with desirable mechanical and physical properties was developed from non-edible protein extracted from Jatropha curcas (Jatropha) seed cake, so far considered as an agro-waste after oil extraction for bio-diesel conversion.

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García-Dávila, J., E. Ocaranza-Sanchez, C. Sánchez, and A. L. Martínez-Ayala. "Catalytic Activity of a Bifunctional Catalyst for Hydrotreatment of Jatropha curcas L. Seed Oil." Journal of Spectroscopy 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/5326456.

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The hydrotreating process of vegetable oils (HPVO) involves the transformation of vegetable oil triglycerides into straight chain alkanes, which are carried out by deoxygenation reactions, generating multiple hydrocarbon compounds, cuts similar to heavy vacuum oil. The HPVO is applied to Jatropha curcas oil on USY zeolite supported with gamma alumina and platinum deposition on the catalytic as hydrogenation component. The acid of additional activity of the supports allows the development of catalytic routes that the intervention of catalytic centers of different nature reaches the desired product. The products of the hydrotreating reaction with Jatropha curcas seed oil triglycerides were identified by Fourier transform infrared spectroscopy and by mass spectroscopy to identify and analyze the generated intermediate and final hydrocarbon compounds.

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Poddar, Mukesh Kumar, Aditya Rai, Mannar Ram Maurya, and Anil Kumar Sinha. "Co-processing of bio-oil from de-oiled Jatropha curcas seed cake with refinery gas–oil over sulfided CoMoP/Al2O3 catalyst." RSC Advances 6, no. 114 (2016): 113720–26. http://dx.doi.org/10.1039/c6ra20893b.

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Asmanizar, Asmanizar, Aldywaridha Aldywaridha, Edy Sumantri, and Ardiansyah Putra Damanik. "EFEKTIVITAS MINYAK BIJI Jatropha curcas MENGENDALIKAN KEPIK PENGHISAP POLONG KEDELAI Nezara viridula (HEMIPTERA: PENTATOMIDAE) DI RUMAH KASA." Jurnal Agrotek Tropika 8, no. 2 (May 31, 2020): 217. http://dx.doi.org/10.23960/jat.v8i2.3579.

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Green Stink Bug Nezara viridula (Hemiptera: Pentatomidae) is an important pest on soybean. The yield losses could be qualitatively and quantitatively. Controlling by using synthetic insecticide caused negative impact. Hence, controlling by using botanical insecticide was as an alternative. The study was conducted at wire house, to know the effect of J. curcas seed oil concentration on N. viridula mortality, pod damaged, empty pod, seed damaged and dry seed weight. The J. curcas seed oil was obtained by Soxhlet Extractor. The concentration of J. curcas seed oil as the treatment, viz. 0% (control); 0.125; 0.25 dan 0.5% (volume oil/volume solution,v/v), and the water as solution applied on soybean plant which was infested of ten N. viridula adult. The result showed all variable observed affected by J. curcas seed oil concentration. The 0.25 and 0.5% concentration showed the mortality reached 95.0 and 100% at 6 days after treatment, while, pod damaged was 7.34 and 1.84%; empty pod was 25.32%, seed damaged was 3.72 and 0.78% and weight of dry seed was 9.94 and 10.44 g. The weight of dry seed at control treatment was 5.52 g. The J. curcas seed oil at 0.5% of concentration has a potency to control N. viridula on soybean plant. There is a need further study to know the effectivity on soybean in the field.

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Verma, Ravindra, Dinesh K. Sharma, and Prakash S. Bisen. "Determination of Free Fatty Acid Composition in Jatropha Crude Oil and Suitability as Biodiesel Feedstock." Current Alternative Energy 3, no. 1 (November 28, 2019): 59–64. http://dx.doi.org/10.2174/2405463103666190722163037.

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Background: Jatropha curcas is one of the most suitable plants which seeds are nonedible in nature but rich in oil. Around 350 oil bearing crops are found suitable as potential alternative fuels for diesel engine. Non-edible crop Jatropha curcas has been identified by many experts for biodiesel production in many countries like India. Objective: The objective of this study is to find out the composition of Jatropha curcas oil and its relation with engine parameters. This research covers selected aspects of physical and chemical relation of fatty acid composition of Jatropha curcas oil and its fuel properties. Methods: A gas-chromatograph with high resolution mass spectrometer was used to determine the free fatty acid composition of the Jatropha curcas oil sample. The column length, diameter and thickness were 30m, 0.25mm and 0.25μm respectively. Helium gas was used as carrier gas, column flow of 1.80 mL/min for the GC. Results: The major fatty acids found in Jatropha curcas crude oil were the oleic (3.81%), linoleic (50%), palmitic fatty (35.66%) acid. Some physical and chemical characteristics have been evaluated and found suitable for the application in engine. Oxidation stability oxidizability and cetane number has been calculated as 4.949, 1.076 and found 55.856. Conclusion: The physical and chemical properties of Jatropha crude oil are similar to the biodiesel except the viscosity; therefore, further processing is required. The fuel properties of Jatropha Curcas oil based biodiesel were found to be within the limits of American Society for Testing and Materials (ASTM) specifications for biodiesel and diesel fuel.

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Brito, Cristiane Dantas de, Marta Bruno Loureiro, Aliomar Pacheco de Souza Junior, Luzimar Gonzaga Fernandez, and Renato Delmondez de Castro. "Morphophysiological profile of Jatropha curcas L. fruits and seeds maturation." Semina: Ciências Agrárias 36, no. 6 (December 9, 2015): 3615. http://dx.doi.org/10.5433/1679-0359.2015v36n6p3615.

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Jatropha curcas L. (Euphorbiaceae), known as physic nut, is an oil seed species suitable as feedstock for biodiesel production, among other possible industrial applications. It is also considered tolerant to water restriction and is thus suitable for cultivation in semi-arid regions. However, the lack of uniformity in fructification and seed maturation hinders the harvest and processing of fruits and seeds and the yields from both oil and seed, as well as obtaining seed lots with good physiological qualities as propagule. Thus, the aim of this study was to characterise the physiological profile during the development and maturation of J. curcas seeds and to identify the best time to harvest the fruits and seeds based on morphological and physiological aspects. Fruit and seed development was monitored and the fruits were harvested at the end of the maturation phase. Then, they were visually classified in six distinct stages of maturation based on the size and colour of the exocarp, whereas the seeds were classified into 13 distinct stages based on the appearance of the fruit and colour of the tegument. The overall analysis of the parameters indicated that the best harvest time was when the fruits were brown and brown-dry and the seeds presented maximum dry matter accumulation, lower moisture content, the highest germination and vigour, higher lipid content and stable length and width dimensions. Whereas these parameters are related to physiological maturation in J. curcas seeds.

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Carmelina, Spanò, Bottega Stefania, Castiglione Monica Ruffini, and Pedranzani Hilda Elizabeth. "Antioxidant response to cold stress in two oil plants of the genus Jatropha." Plant, Soil and Environment 63, No. 6 (June 14, 2017): 271–76. http://dx.doi.org/10.17221/182/2017-pse.

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Jatropha curcas and J. macrocarpa, suitable for production of biodiesel oil from their seeds, are able to live in arid and semi-arid regions, where most crops cannot survive. J. curcas is characterized by higher oil quality and seed yield, but it is not a good candidate for oil production in arid areas with freezing temperatures, due to its sensitivity to chilling in comparison to J. macrocarpa. In this work, for the first time, the effects of cold stress and different mechanisms activated in these conditions have been studied in the two species. Seedlings were treated with low non-freezing temperatures with or without a previous acclimation period. Water status, pigment content, oxidative stress and antioxidant response were studied in acclimated and non-acclimated plants. The key features that differentiate J. macrocarpa from J. curcas were the ability to accumulate, at low temperatures, high concentrations of pigments and glutathione and significantly higher activities of ascorbate peroxidase. These data could explain the greater resistance to low temperatures of J. macrocarpa. A period of acclimation was not able to improve cold tolerance of J. curcas and this confirms its limited adaptability to arid areas with freezing temperatures.

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Zahari, M. Shahrir M., Shahrul Ismail, Mohd Zamri Ibrahim, Su Shiung Lam, and R. Mat. "Study of Enhanced Reactive Extraction Process Using Ultrasonication for Jatropha curcas Seed." Applied Mechanics and Materials 699 (November 2014): 522–27. http://dx.doi.org/10.4028/www.scientific.net/amm.699.522.

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The purpose of this study is to investigate the feasibility and positive effects of ultrasonication toward Jatropha Curcas seed reactive extraction process. Ultrasonic-assisted oil extraction from Jatropha seed were compared with conventional stirring method of a shaker bath at varied conditions such as seed sizes (<1.0 – 4.0 mm), temperature (30 – 60°C) and time (1 – 60 min). The results revealed that a swift and complete Jatropha oil extraction can be achieved with the aid of ultrasound influenced mostly by temperature and reaction time differences. Transesterification conversion were confirmed with NMR revealing the presence of Fatty Acid Methyl Esters (FAMEs) in the solution mixture. Enhanced effect by the ultrasonication were evidenced for a better and faster extraction whilst simultaneously converting Jatropha oil into biodiesel.

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Gübitz, G. "Exploitation of the tropical oil seed plant Jatropha curcas L." Bioresource Technology 67, no. 1 (January 1999): 73–82. http://dx.doi.org/10.1016/s0960-8524(99)00069-3.

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Haas, Wilhelm, and Martin Mittelbach. "Detoxification experiments with the seed oil from Jatropha curcas L." Industrial Crops and Products 12, no. 2 (August 2000): 111–18. http://dx.doi.org/10.1016/s0926-6690(00)00043-1.

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Okullo, Aldo. "Process Simulation of Biodiesel Production from Jatropha Curcas Seed Oil." American Journal of Chemical Engineering 5, no. 4 (2017): 56. http://dx.doi.org/10.11648/j.ajche.20170504.12.

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Valášek, Petr, and Miroslav Müller. "Biocomposite Based on Epoxy Resin and Jatropha curcas L. Microparticles." Advanced Materials Research 1030-1032 (September 2014): 446–49. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.446.

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Jatropha curcas L. is a plant with a high potential with many technologically useful part – seeds of the plant are the most utilized. A development of composite materials – biocomposites from renewable resource is an interesting and prospective tendency of a material engineering. A filler of the biocomposites can be from worse useful parts of plants which were primarily technologically processed for the purpose of gaining various commodities. As an example we can mentioned gaining of oil from Jatropha curcas L. seeds when it is possible to use rests cake from whole seeds. An experiment describes basic mechanical properties of an epoxy resin filled with microparticles of seed cakes (575 μm).

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Singh, Yamini, Kamal Kachhawa, Om Kumar, Poonam Kachhawa, and R. K. Kaul. "Effect of Detoxified Jatropha Cake on Hepatic and Renal Function following Long Term Feeding to Mice." Defence Life Science Journal 1, no. 1 (June 1, 2016): 95. http://dx.doi.org/10.14429/dlsj.1.10057.

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Jatropha curcas belongs to the family Euphorbiaceae and is distributed in many tropical and subtropical countries. The toxicity of the whole seed Jatropha curcas has been known for a long time. Jatropha plant is used as a source of biodiesel. In addition to being a source of oil, Jatropha also provides seed-cake and is a by-product of oil extraction that serves as a highly nutritious and economic protein supplement in animal feed. It also contains many toxic components like phorbol ester, lectins, saponin, curcin, HCN etc. In the present study, we detoxified whole Jatropha cake by subjecting to various solvent extraction, alkali and heat treatment. After processing, cake was dried and animal baits were prepared by mixing different percentage of detoxified (JCMD) and non detoxified cake (JCM). Long term (90 days) animal feeding trials and toxicological evaluations was carried out. Animals were sacrificed at various time intervals for toxicity evaluation. The toxicity study result revealed that 10% (w/w) detoxified (JCMD) baits fed group animals survived till the 90 days and did not show any significant changes in various clinical parameters related to hepatic and renal function while in 10% non detoxified (JCM) fed groups mortality starts on 6th day of feeding and no animal was survived beyond 9th day. The result of long term feeding trials and toxicity study reveals that 10% detoxified Jatropha cake can be supplemented in animal’s diet after detoxification.

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Akinyele, FF. "Characterization of pure plant oil and biodiesel from Jatropha curcas and Thevetia nerifolia seed." Journal of Agriculture, Forestry and the Social Sciences 11, no. 2 (February 18, 2015): 241–47. http://dx.doi.org/10.4314/joafss.v11i2.28.

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The problems associated with long term availability of conventional hydrocarbon fuels for automotive engines, and the continuous emission of combustion pollutants into the environment are cause for concern. These has necessitated the need to investigate the performance of plants oil methyl ester. Hence this study investigates the characteristics of pure plant oils (PPO) of Jatropha curcas and Thevetia nerifolia ; biodiesel produced from them at different methanol/ oil ratio. The percentage oil and biodiesel yield; pH, Specific gravity, viscosity and flash point for both PPO and biodiesel were determined. The result of this study showed that the pH value for PPO of Jatropha is slightly alkaline, Thevetia slightly acidic and their mixture very acidic. The biodiesel yield at ratio 1:5 is the best for this study in terms of yield of about 91%, 82% and 70% on average for Jatropha curcas, Thevetia nerifolia and mixture respectively. The viscosity of the biodiesel ranged between 1.2mm/s2 and 6.44 mm/s2. Therefore, the limited fuel characterization carried out demonstrated that the biodiesel produced can be considered as an alternative environmentally-friendly fuel for diesel enginesKeywords: Transesterification, Viscosity, Flash point PPO.

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Shen, J., L. D. Kha, N. D. Kien, and K. Pinyopusarerk. "Variation in seed traits and oil content in 24 Jatropha curcas L. seed sources from Asia, Africa and Papua New Guinea." Silvae Genetica 62, no. 1-6 (December 1, 2013): 257–64. http://dx.doi.org/10.1515/sg-2013-0031.

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Abstract This study was carried out to determine the extent of variation in seed traits and oil content among 24 seeds sources of Jatropha curcas from 8 countries in Asia, Africa and Papua New Guinea. There were marked differences in the length (range 15.88-19 mm), breadth (10.20-11.71 mm), thickness (7.95-9.37 mm) and volume index of seed (1337-2000 mm3), weight of seed (42.67-80.20 g) and kernel (18.44-51.04 g), kernel/seed ratio (0.43-0.66), and oil content in seed (18.08-37.89%) and kernel (34.02-59.09%). In general, seeds from Laos, Mali, Papua New Guinea, Philippines and Thailand were larger and heavier than sources from China and India, but contained lower oil content in seed and kernel. Principal component analysis revealed that seed and kernel weight and oil content in whole seed and in kernel were useful characteristics in explaining the variation pattern among seed sources. Seven out of the 24 seed sources investigated in this study are considered promising for planting for oil-seed production. This study underpins the importance of selecting suitable seed sources for commercial plantation establishment of J. curcas.

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Legesse, Adane, Abate Habtamu, and Tesfaye Tegene. "Use of jatropha seed oil and alkali solution obtained from its ash for soap making." Journal of Applied Sciences and Environmental Management 24, no. 12 (February 15, 2021): 2005–15. http://dx.doi.org/10.4314/jasem.v24i12.1.

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The present study investigated the potential of Jatropha curcas L. seed oil and lye its ash for soapmaking. Oil was extracted from the seeds using Soxhlet extractor and n-hexane. Lye solution was obtained by boilingash of Jatropha with distilled water. The physicochemical properties (saponification value, Iodine value, acid valueand peroxide value) of the oil (and its blend with palm oil) were found to be consistent with reported values inliterature. The oil content and its relative density were also found to be 31.17% and 0.88g/cm3, respectively. Soapsamples were prepared by treating the oil and the prepared lye solution. Their physicochemical properties (moisturecontent, total alkali content, total fatty matter, pH, foam ability and cleansing ability) were found to be comparablewith reported properties for laundry soaps. The findings indicated that the lye solution from ash of Jatropha and itsseed oil result in soap materials that have acceptable qualities.

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Malhotra, Kshitij, Dinesh Kumar, and Vidya Dhar Pandey. "Seed Source Variation in Seed Oil Content for Jatropha curcas L. in Uttarakhand." Journal of Biofuels 9, no. 1 (2018): 1. http://dx.doi.org/10.5958/0976-4763.2018.00001.6.

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Pérez, Guadalupe, Jorge Islas, Mirna Guevara, and Raúl Suárez. "The Sustainable Cultivation of Mexican Nontoxic Jatropha Curcas to Produce Biodiesel and Food in Marginal Rural Lands." Sustainability 11, no. 20 (October 20, 2019): 5823. http://dx.doi.org/10.3390/su11205823.

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The objective of this study is to identify Mexican nontoxic ecotypes of Jatropha curcas with potential for a sustainable agriculture practice to produce biodiesel and food products through a methodology and criteria of sustainability. In a rural region of Morelos state in central México, nine Mexican ecotypes of Jatropha curcas were evaluated in an experimental plantation with minimal water resources and fertilization. The experimental trial was assessed in terms of (1) toxicity, (2) growth and survival of the plants, (3) yield of seed, (4) residual biomass production, (5) oil characteristics for biodiesel production, (6) nutrimental properties of the seeds, and (7) changes in the chemical properties of the soil. Finally, two outstanding nontoxic ecotypes were identified as the most suitable for the establishment of Jatropha curcas crops to produce biodiesel and, at the same time, for food products using the de-oiled endosperm cake, for energy production from the residual biomass and for improvement of soil properties in marginal lands of rural regions of Morelos state.

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Konaka, Takafumi, Shin Yabuta, Charles Mazereku, Yoshinobu Kawamitsu, Hisashi Tsujimoto, Masami Ueno, and Kinya Akashi. "Use of Carbonized Fallen Leaves of Jatropha Curcas L. as a Soil Conditioner for Acidic and Undernourished Soil." Agronomy 9, no. 5 (May 9, 2019): 236. http://dx.doi.org/10.3390/agronomy9050236.

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Jatropha (Jatropha curcas L.) represents a renewable bioenergy source in arid regions, where it is used to produce not only biodiesel from the seed oil, but also various non-oil biomass products, such as fertilizer, from the seed cake following oil extraction from the seeds. Jatropha plants also generate large amounts of fallen leaves during the cold or drought season, but few studies have examined the utilization of this litter biomass. Therefore, in this study, we produced biochar from the fallen leaves of jatropha using a simple and economical carbonizer that was constructed from a standard 200 L oil drum, which would be suitable for use in rural communities, and evaluated the use of the generated biochar as a soil conditioner for the cultivation of Swiss chard (Beta vulgaris subsp. cicla “Fordhook Giant”) as a model vegetable in an acidic and undernourished soil in Botswana. Biochar application improved several growth parameters of Swiss chard, such as the total leaf area. In addition, the dry weights of the harvested shoots were 1.57, 1.88, and 2.32 fold higher in plants grown in soils containing 3%, 5%, and 10% biochar, respectively, compared with non-applied soil, suggesting that the amount of biochar applied to the soil was positively correlated with yield. Together, these observations suggest that jatropha fallen leaf biochar could function as a soil conditioner to enhance crop productivity.

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Srivastava, Seweta, Ravindra Kumar, and Asha Sinha. "Antifungal Activity of Jatropha curcas Oil Against Some Seed-borne Fungi." Plant Pathology Journal 11, no. 4 (September 15, 2012): 120–23. http://dx.doi.org/10.3923/ppj.2012.120.123.

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Ansari, Subhanul Hasan, M. Naseem, A. Hasnat, and S. Aziz Ahmad. "A Polyesteramide Resin from Jatropha curcas Seed Oil for Anticorrosive Coating." Biosciences Biotechnology Research Asia 8, no. 2 (December 30, 2011): 829–32. http://dx.doi.org/10.13005/bbra/944.

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Odetoye, T. E., D. S. Ogunniyi, and G. A. Olatunji. "Preparation and evaluation of Jatropha curcas Linneaus seed oil alkyd resins." Industrial Crops and Products 32, no. 3 (November 2010): 225–30. http://dx.doi.org/10.1016/j.indcrop.2010.04.016.

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Passarini Junior, José Roberto, Fernanda Oliveira de Gaspari de Gaspi, Lia Mara Grosso Neves, Marcelo Augusto Marreto Esquisatto, Gláucia Maria Tech dos Santos, and Fernanda Aparecida Sampaio Mendonça. "Application of Jatropha curcas L. seed oil (Euphorbiaceae) and microcurrent on the healing of experimental wounds in Wistar rats." Acta Cirurgica Brasileira 27, no. 7 (July 2012): 441–47. http://dx.doi.org/10.1590/s0102-86502012000700002.

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PURPOSE: To investigate the effects of Jatropha curcas L. seed oil and microcurrent stimulation on the healing of wounds experimentally induced in Wistar rats. METHODS: Forty-eight animals were divided into four groups: (A) control; (B) treated with microcurrent (10 µA/2 min); (C) treated with J. curcas seed oil, and (D) treated with J. curcas seed oil plus microcurrent. Tissues samples were obtained two, six, ten and 14 days after injury and submitted to structural and morphometric analyses. RESULTS: The animals of groups A and C showed similar responses in terms of repair area, total number of cells, number of newly formed blood vessels, epithelial thickness, and percentage of area occupied by mature collagen fibers. Significant differences in all parameters analyzed were observed between animals of groups B and D and the control 10 and 14 days after experimentally induced injury. The morphometric data confirmed the structural findings CONCLUSIONS: The application of J. curcas seed oil alone was not effective on experimental wound healing when compared to control, but microcurrent application alone or combined with the oil exerted significant differences in the parameters studied. These findings suggest that the positive results were due to microcurrent stimulation.

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AHMED EL-IMAM, Amina M., Muinat O. KAZEEM, Mutiat B. ODEBISI, Mushaffa A. OKE, and Azeezat O. ABIDOYE. "Production of Itaconic Acid from Jatropha curcas Seed Cake by Aspergillus terreus." Notulae Scientia Biologicae 5, no. 1 (February 23, 2013): 57–61. http://dx.doi.org/10.15835/nsb518355.

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Submerged substrate fermentation of Jatropha seed cake, a by-product of oil extraction from Jatropha curcas seed was carried out using Aspergillus terreus for the production of itaconic acid. The Jatropha seed cake was initially converted into fermentable sugars by dilute acid hydrolysis using 50% sulphuric acid. The rate of hydrolysis was 1.04 gL-1. The fermentation process was carried out at room temperature, agitation of 400 rpm and three physico-chemical parameters (pH, inoculum size and substrate concentration) were varied. Itaconic acid and glucose assays were carried out by spectrophotometry and Dinitrosalicylic acid methods respectively daily. Maximum yield of itaconic acid was 48.70 gL-1 at 5 ml of inoculum size, 50 g substrate concentration and pH 1.5. The residual glucose concentration increased for the first two days of fermentation after which it began to decrease as the itaconic acid concentration increased. The least concentration of itaconic acid observed was 6.00 gL-1, obtained after 24 hours of fermentation with 4 ml inoculum size, 50 g substrate concentration and at pH 1.5. The findings of this work indicate that Jatropha curcas seed cake is a suitable substrate for itaconic acid production.

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Maurya, Ramanuj, Saurabh Verma, Astha Gupta, Bajrang Singh, and Hemant Yadav. "Genetic variability and divergence analyses in Jatropha curcas based on floral and yield traits." Genetika 45, no. 3 (2013): 655–66. http://dx.doi.org/10.2298/gensr1303655m.

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Genetic variability of 80 accessions of Jatropha curcas showed that oil content varied between 20.8-36.1% (X=26.2?0.38). Thirty seven accessions showed seed weight/plant above average mean value (180.2g) and 26 accessions showed oil content above average mean (26.2%). The hierarchical clustering grouped all the accessions into 4 clusters. Clustering showed that majority of accessions i.e. 56 (70%) were genetically close to each other and grouped in two clusters. The maximum intra cluster distance was recorded in cluster IV (30.15). The inter cluster distance varied from 47.59 (between cluster I and cluster II) to 211.27 (between cluster III and cluster I). The cluster III showed maximum genetic distance with cluster I, followed by cluster IV and cluster II suggesting comparatively wider genetic diversity among them. The Principal Component Analysis (PCA) showed that first four principal components (PCs) accounted for more than 93% of the total variation. The first principal components accounted for 42.5% of the total variation mainly due to seed length, seed width, seed weight/plant and number of seeds/plant which had maximum and positive weight on this component. Oil content had negative weight on PC1. Thus, PC1 related to the accessions with thick seeds, moderate to high seed yielder with low oil content.

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HERAK, David, Abraham KABUTEY, Monika DIVISOVA, and Tereza SVATONOVA. "Comparison of the Mechanical Behaviour of Selected Oilseeds under Compression Loading." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 40, no. 2 (September 24, 2012): 227. http://dx.doi.org/10.15835/nbha4027444.

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The present study provides information about the comparison of mechanical behaviour of selected oil bearing crops namely rapeseeds (Brassica napus L.), sunflower seeds (Helianthus annus L.) and jatropha seeds (Jatropha curcas L.) under compression loading. In this research, the compression device ZDM 50 with a chart recorder and a pressing vessel with diameter 100 mm were used to determine the relationship between the magnitude of the pressing force and deformation characteristics of the oilseed crops pressed at initial height 80 mm. From the compression test, the amounts of true deformation, maximal deformation energy and compressive force of the pressed samples were calculated and also mathematical equations describing the limit deformation, maximal deformation ratio, energy ratio and oil point deformation ratio were determined. The oil point position on the deformation curve, that is, the first leakage of oil from the pressing vessel of the various oilseeds was determined and compared. Based on the measured amounts rapeseeds achieved the highest values followed by jatropha seed and then sunflower seed. The amount of deformation energy required for the seed deformation gives the indication the amount of energy needed for obtaining the oil from the seed. It was found that the measured amounts as well as the oil point position on the force-deformation curve of the pressed samples showed varying results due to the seeds physical and inherent characteristics.

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Che Hamzah, Nurul Husna, Nozieana Khairuddin, Bazlul Mobin Siddique, and Mohd Ali Hassan. "Potential of Jatropha curcas L. as Biodiesel Feedstock in Malaysia: A Concise Review." Processes 8, no. 7 (July 6, 2020): 786. http://dx.doi.org/10.3390/pr8070786.

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Fluctuation in fossil fuel prices and the increasing awareness of environmental degradation have prompted the search for alternatives from renewable energy sources. Biodiesel is the most efficient alternative to fossil fuel substitution because it can be properly modified for current diesel engines. It is a vegetable oil-based fuel with similar properties to petroleum diesel. Generally, biodiesel is a non-toxic, biodegradable, and highly efficient alternative for fossil fuel substitution. In Malaysia, oil palm is considered as the most valuable commodity crop and gives a high economic return to the country. However, the ethical challenge of food or fuel makes palm oil not an ideal feedstock for biodiesel production. Therefore, attention is shifted to non-edible feedstock like Jatropha curcas Linnaeus (Jatropha curcas L.). It is an inedible oil-bearing crop that can be processed into biodiesel. It has a high-seed yield that could be continually produced for up to 50 years. Furthermore, its utilization will have zero impact on food sources since the oil is poisonous for human and animal consumption. However, Jatropha biodiesel is still in its preliminary phase compared to palm oil-based biodiesel in Malaysia due to a lack of research and development. Therefore, this paper emphasizes the potential of Jatropha curcas as an eco-friendly biodiesel feedstock to promote socio-economic development and meet significantly growing energy demands even though the challenges for its implementation as a national biodiesel program might be longer.

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Ginwal, H. S., P. S. Rawat, and R. L. Srivastava. "Seed Source Variation in Growth Performance and Oil Yield of Jatropha curcas Linn. in Central India." Silvae Genetica 53, no. 1-6 (December 1, 2004): 186–92. http://dx.doi.org/10.1515/sg-2004-0034.

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Abstract Results of a seed source evaluation trial of Jatropha curcas Linn. laid out in 1996 at Jabalpur (M.P), a semi arid region of India are reported and discussed. Seeds collected from ten sources from central India representing the states Madhya Pradesh and Maharashtra viz. Gondia, Bichia, Balaghat, Niwas, Khandwa, Burhanpur, Nasik, Chindwara, Kundam and Jabalpur were evaluated for their growth performance from nursery stage (3 months) to field (two years). Variation in seed oil content of different sources were also studied and reported. Significant differences between the seed sources at age 27 months were observed for height, collar diameter, number of branches leaf area and field survival. Seeds collected from different sources also varied significantly in respect of seed and kernel weight and oil content in seed/kernel. The Chhindwara (M.P.) source performed the best and yielded a maximum oil of 39.12% from whole seed and 58.12% from kernel. The oil content ranged from 33.02 to 39.12% in whole seeds and 47.08 to 58.12% in kernel, across the seed sources. The performance of Kundam (M.P.), Jabalpur (M.P.), Bichia (M.P.), Niwas (M.P.) and Nasik (Maharashtra) sources were also found satisfactory for oil yield. Results indicate that genetic differences exist between the seed sources of J. curcas. The growth traits showed significant positive correlation with each other. Fair differences between phenotypic and genotypic coefficient of variability were observed. Heritability (broad sense) values were fairly good with regard to leaf area, height and collar diameter in comparison to survival percent. The relative performance of these sources was fairly consistent throughout the observation period.

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Nazir, Novizar, Djumali Mangunwidjaja, Dwi Setyaningsih, Sri Yuliani, Mohd Ambar Yarmo, Jumat Salimon, and Nazaruddin Ramli. "In-situ Alkaline Transesterification of Jatropha curcas seed Oil for Production of Biodiesel and Nontoxic Jatropha seed Cake." International Journal on Advanced Science, Engineering and Information Technology 4, no. 1 (2014): 7. http://dx.doi.org/10.18517/ijaseit.4.1.353.

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Handajani, Hany, Riza Rahman Hakim, Ganjar Adhywirawan Sutaro, Boy Ronald Mavuso, Zhong–Wen Chang, and Soni Andriawan. "Degradation of Phorbol Esters on the Jatropha curcas Linn. Seed by Biological Detoxification." E3S Web of Conferences 226 (2021): 00020. http://dx.doi.org/10.1051/e3sconf/202122600020.

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The application of fermentation is one of methods to increase food quality biologically. Availability of Jatropha curcas residual from oil factory be focused as a soybean meal or fish meal replacement. On the other hand, J. curcas residuals possess a toxic compound as well. This study aimed to examine the effect of Aspergillus niger on the nutrition and harmful content of J. curcas as a potential ingredient of feed. In brief, J. curcas residual was fermented with a detoxification method at 3 d, 5 d, and 7 d. Crude protein, fat, and crude fiber content were assessed to discover the biological responses of J. curcas post–fermentation while phorbol ester was evaluated to toxic content post–detoxification. The results showed that crude protein and fat content were highest on 7 d post–fermentation but it was no significant difference (p > 0.05). While crude fiber content showed significant difference which the 3 d fermentation had the highest content of fiber. For phorbol ester content, 3 d fermentation showed a better result than the control group (p < 0.05). The present findings suggest that A. niger is recommendable as starter to reduce fiber and toxic content of J. curcas residual at 3 d fermentation.

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Pari, Luigi, Alessandro Suardi, Leonardo Longo, Monica Carnevale, and Francesco Gallucci. "Jatropha curcas, L. Pruning Residues for Energy: Characteristics of an Untapped By-Product." Energies 11, no. 7 (June 21, 2018): 1622. http://dx.doi.org/10.3390/en11071622.

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Jatropha (Jatropha curcas, L.) is an energy crop mainly cultivated for the oil-seed, and the oil is usually used as bio-fuel. However, few studies have reported information about the utilization of the wood as a fuel for boiler heating systems. With 2500 jatropha trees per hectare, it is possible to produce about 3 t·ha−1·y−1 of woody biomass from pruning. In addition, jatropha trees are commonly cut down to a height of 45 cm once every 10 years, with a production of 80 t·ha−1 of dry matter of woody biomass. The use of this biomass has not yet been investigated. During the European project JatroMed, woody biomass from jatropha pruning was collected in Morocco. Chemical and physical characteristics of the wood were conducted according to UNI EN ISO standards. The following jatropha wood characteristics have been analyzed: Moisture and ash contents, the ash melting point, heating value, and concentrations of C, H, N, and S. This research focused on the evaluation of the potential use of jatropha pruning for energy production, and the results represent critical data that is useful for future studies and business potential.

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Warra, A. "Cosmetic potentials of physic nut (Jatropha curcas Linn.) seed oil: A review." American Journal of Scientific and Industrial Research 3, no. 6 (December 2012): 358–66. http://dx.doi.org/10.5251/ajsir.2012.3.6.358.366.

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Omizegba, F., K. Bello, J. Abayeh, H. Adamu, D. Boryo, and S. Osemeahon. "Structural Modification of Cellulosic Fabric via Esterification Using Jatropha curcas Seed Oil." International Research Journal of Pure and Applied Chemistry 14, no. 2 (January 10, 2017): 1–13. http://dx.doi.org/10.9734/irjpac/2017/32685.

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Journal articles on the topic 'Jatropha curcas seed oil'

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