RESUMEN
North East India is a home of tremendous and versatile vegetative oil bearing materials because of the subtropical climatic conditions. Screening, characterization, and domestication of high yielding treeborne oilseeds rich in oleic acid and tocopherol are highly demandable from industrial aspects. As very few studies have been carried out in this regard from this region, our investigation aims to exploit new sources of tree-borne oilseeds rich in omega fatty acids for edible and non-edible purposes from both known and unknown plants. Six lesser-known tree-borne oilseeds were characterized based on oil content, tocopherol composition and metal content. The fatty oil was found more in Dysoxylum procerum (50%). The dominating fatty acid was oleic acid ranged between 38.4 to 64%. The oil of Terminalia bellirica showed high content of tocopherol (0.05%). Among eleven metals (Ca, Cu, Zn, Mg, Mn, Fe, Pb, Cd, As, Na, K) in all the six fatty oil contents, Pb and Cu showed high concentrations as compared to the codex standard while Fe values of all the oil contents were below the permissible concentrations.
Asunto(s)
Ácidos Oléicos/química , Semillas/química , IndiaRESUMEN
Forest of North-East India is rich in a variety of tree borne oilseeds and there were no serious efforts to exploit the less known oilseeds of the forest origin. Considering the vast plant wealth and with an objective to explore these untapped potentialities of oilseed resources of NE India, a research program was undertaken. The present communication is based on the investigation of seeds of 14 lesser known plant species for fats and oils. The screened plant species exhibited oil yield ranging from 4.71% to 48.43% on dry weight basis. Alseodaphne andersonii showed significant amount of tocols while Garcinia xanthochymus showed significant amount of phytosterol. Gas liquid chromatography analysis of methyl ester extracted fatty acid indicated dominant fraction of Oleic acid in 6 numbers of species, followed by Linoleic acid in 3 species, Lauric acid in 3 species, and Palmitic acid in 2 species. The majority of the species (9 species) showed higher amount of unsaturated fatty acid content in the oils which suggested that the species may serve as valuable raw materials for vegetable oil which can be explored as substitute for industrial feasibility while restshowed higher amount of saturated fatty acids which suggested that these species may serve as important industrial by-products.