title: Physicochemical analysis of Psophocarpus tetragonolobus (L.) DC seeds with fatty acids and total lipids compositions.
abstract: Psophocarpus tetragonolobus (L.) DC. is a tropical legume with potential nutritional properties. In present study, the physical properties and proximate composition of the seeds were evaluated. Besides, the physico-chemical properties of fatty oil from fully mature seeds were also studied. The fatty oil compositions of immature, mature and fully mature seeds were evaluated by GC-FID, GC/MS and (1)H-NMR. The study revealed that, fatty oil from fully mature seeds contained high proportion of unsaturated fatty acids (75.5 %), whereas immature seeds contained higher percentage of saturated fatty acid (61.3 %). In addition, unsaponification matter (0.25 %) of fatty oil was identified as stigmasterol (66.4 %) and β-sitosterol (25.1 %). Total lipids of fully mature seeds were extracted and isolated as neutral, glyco- and phospholipids. Overall, the fatty oil of fully mature seeds was enriched with mono-unsaturated fatty acids (38.6 %) and poly-unsaturated fatty acids (36.9 %) without trans-fatty acids, thus meeting the edible oil standard.
authors.affiliation: CSIR-National Botanical Research Institute, Lucknow, 226001 India.
authors.forename: Chandra Sekhar
authors.initials: CS
authors.lastname: Mohanty
authors.affiliation: Department of Farm Engineering, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221005 India.
authors.forename: Rama Chandra
authors.initials: RC
authors.lastname: Pradhan
authors.affiliation: CSIR-National Botanical Research Institute, Lucknow, 226001 India.
authors.forename: Vinayak
authors.initials: V
authors.lastname: Singh
authors.affiliation: Chemical Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015 India.
authors.forename: Neha
authors.initials: N
authors.lastname: Singh
authors.affiliation: CSIR-National Botanical Research Institute, Lucknow, 226001 India.
authors.forename: Rojalin
authors.initials: R
authors.lastname: Pattanayak
authors.affiliation: Chemical Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015 India.
authors.forename: Om
authors.initials: O
authors.lastname: Prakash
authors.affiliation: Chemical Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015 India.
authors.forename: Chandan Singh
authors.initials: CS
authors.lastname: Chanotiya
authors.affiliation: Chemical Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015 India.
authors.forename: Prasant Kumar
authors.initials: PK
authors.lastname: Rout
keywords: Bound lipids; Fatty acid composition; Neutral lipids; Physical properties; Psophocarpus tetragonolobus (L.) seed; Total lipids composition