降香黄檀籽油的理化性质及化学成分分析_郑联合 . Physicochemical properties and chemical composition of Dalbergia odorifera T.Chen seed oil

Abstract

The Dalbergia odorifera T.Chen seed oil was extracted with Soxhlet method,and its physicochemical properties,chemical composition were investigated.The acid value,peroxide value,saponification value,unsaponifiable matter,iodine value,refractive index,density and ash content of the oil were 3.31 mgKOH/g,5.07 meq/kg,196.78 mgKOH/g,1.70%,108 gI/100 g,1.459 6,0.915 g/cm3 and 0.025%,respectively.The oil showed high absorbance in the UV-B(290-320 nm) and UV-C(200-290 nm) ranges which indicated that the oil could be used as a broad spectrum UV protectant.The major fatty acids in the oil were linoleic acid(60.03%),oleic acid(17.48%) and palmitic acid(16.72%).The contents of tocopherols,polyphenol and β-carotene were 51.19,39.91,6.22 mg/100 g,respectively.Dalbergia odorifera T.Chen seed oil could be used as a new product in food,cosmetic and pharmacy industry.