| Nutritional quality evaluation of velvet bean seeds (Mucuna pruriens) exposed to gamma irradiation. | |
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MedLine Citation:
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PMID: 17852489 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Effects of gamma irradiation on Mucuna pruriens seeds at various doses (0, 2.5, 5, 7.5, 10, 15 and 30 kGy) on the proximate composition, mineral constituents, amino acids, fatty acids and functional properties were investigated. Gamma irradiation resulted in a significant increase of crude protein at all doses, while the crude lipid, crude fibre and ash showed a dose-dependent decrease. Raw Mucuna seeds were rich in minerals (potassium, phosphorus, calcium, magnesium, iron and selenium). Sodium, copper and manganese were significantly decreased on irradiation at all the doses, while magnesium and iron showed a significant decrease only above 10 kGy. The essential amino acids of raw and gamma-irradiated Mucuna seeds were comparable with the FAO/WHO recommended pattern. A significant increase of in vitro protein digestibility was seen in seeds irradiated at 30 kGy. High amounts of unsaturated fatty acids in Mucuna seeds decreased significantly after irradiation. However, linoleic acid was not present in raw seeds but detected after irradiation and it was elevated to high level at 30 kGy. Behenic acid, a major anti-nutritional factor, was reduced significantly on irradiation, indicating the positive effect of gamma irradiation on Mucuna seeds. Significant enhancement in the water absorption and oil absorption capacities, protein solubility, emulsion activity and improvement in the gelation capacity was recorded after irradiation. Results of the present investigation reveal that application of gamma irradiation does not affect the overall nutritional composition and can be used as an effective method of preservation of Mucuna seed and their products. |
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Authors:
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Rajeev Bhat; Kandikere R Sridhar; Sahadevan Seena |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International journal of food sciences and nutrition Volume: 59 ISSN: 0963-7486 ISO Abbreviation: Int J Food Sci Nutr Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-09-12 Completed Date: 2008-12-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9432922 Medline TA: Int J Food Sci Nutr Country: England |
Other Details:
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Languages: eng Pagination: 261-78 Citation Subset: IM |
Affiliation:
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Microbiology and Biotechnology, Department of Biosciences, Mangalore University, Mangalagangotri, Mangalore, Karnataka, India. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids
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analysis Digestion Dose-Response Relationship, Radiation Fatty Acids, Unsaturated / analysis Food Irradiation* Gamma Rays Lipids / analysis Mucuna / chemistry*, radiation effects* Nutritive Value* Radiation Dosage Seeds / chemistry, radiation effects Solubility Trace Elements / analysis Vegetable Proteins / analysis, metabolism |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Fatty Acids, Unsaturated; 0/Lipids; 0/Trace Elements; 0/Vegetable Proteins |
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