Profile of Triacylglycerols, Phenols and Vitamin E of Manjari Medika Grape Seed Oil and Cake: Introducing a NOVEL INDIAN VARIETY

The aim of the study is to investigate the biochemical composition of grapeseed oil and cake from an unexplored Indian grape-juice cultivar, Manjari Medika (MM). The composition of oil and residual seed cake is evaluated using various chromatographic and spectroscopic techniques. The findings demonstrate that the vitamin E content of MM-seed oil (1.15-1.35 g kg(-1)) is distinctively higher than the Codex standard, suggesting its superior quality as an edible oil. The predominant triacylglycerols include trilinolein (LLL, 43%), dilinoleoyl-stearylglycerol (LSL, 19%), and dilinoleoyl-palmitoylglycerol (LLP, 11%), which are earlier recognized as natural antioxidants. The seed-cake is rich in polyphenols including acylated anthocyanins (e.g., pelargonidin-3-O-coumaroyl glucoside) and certain other flavonoids (e.g., catechin). The profile of phytonutrients in MM seed-oil and cake is significantly superior to its seeded female parent and two other widely cultivated wine-grape varieties. In brief, the studied by-products of this new grape-juice cultivar can be an important source of high-value ingredients for use in food supplements, nutraceuticals, and functional foods. Practical applications: This study reports the phytochemical profile of the seed-oil and seed cake derived from a newly developed grape variety, Manjari Medika. High contents of selective antioxidants: lipids, vitamin E, and phenols in the seed-oil and cake with health benefits suggest their potential for use in nutraceutical and functional foods. These byproducts can be utilised as ingredients of functional foods and nutraceuticals (e.g., grape seed oil capsule) and also as raw materials in food supply chains (e.g., for production of grape cookies or cake). MM can also be utilized as a colorant in the food industry.