Biochemical and phytochemical analysis of Yardlong bean (Vigna unguiculata (L.) Verdc. subsp. sesquipedalis) using gas chromatography and mass spectroscopy (GC-MS)

Yardlong bean is rich in phytonutrients that are essential for maintaining good health in human beings.It is the most widely adapted drought-tolerant legume vegetable that possess high nutritive and biochemical values.The research studies in this direction are very meagre.So, the present study was conducted at Western Block, Department of Vegetable Science, Horticultural College and Research Institute, Periyakulam from 2022 to 2024 with the aim to quantify the major compounds present in yardlong bean which may pave the way for developing new value added products in future.The study was planned in a complete randomized block design with two replications.The study material included six parents and one check variety.Results showed that among the parents, the genotype EC-769247 recorded high level of crude fibre (11.51%), protein (8.43%), manganese (10.88 ppm), iron (15.55 ppm), zinc (12.74 ppm) and copper (5.27 ppm).Major bioactive compounds identified in the genotype EC-769247 are friedooleanan-3-ol (10.89%), friedelan-3-one (7.68%), 9,12,15-octadecatrienoic acid (7.45%), stigmasterol (4.91%), 1,2-epithio-3-hexanol (4.25%), n-hexadecanoic acid (3.77%), olean-12-ene (3.68%), cyclononanone (3.02%), 1,4-benzenediol (2.35%), campesterol (2.09%), pyridine (1.98%), isopropyl linoleate (1.90%), androstan-4-one (1.83%), nonanoic acid (1.80%), 2-amino-3-hydroxypyridine (1.75%), acetate (1.28%), benzoic acid, isopropyl-4-hydroxybenzoate (1.31%), ergost-5-en-3-ol (1.28%) and methoxyacetic acid (1.09%).Among six parents and one standard check, genotype EC-769247 is deemed to have the highest mineral content and enhance the phytochemical quality of yardlong bean.