白刺籽油的萃取及理化性质和脂肪酸组成分析_王玉玲 . Nitraria Seed Oil Extraction and Analysis of Physical and Chemical Properties and Composition of Fatty Acid

Abstract

This article uses Siberian nitraira seed oil as materials,and uses the supercritical CO2 fluid extraction technology to extract nitraria seed oil.It also uses the orthogonal test to study the effects of pressure,temperature,and time.It confirms the best conditions of nitraria seed oil's extraction are that: the pressure is 30 MPa;the temperature is 30 ℃;and the time is 150 minutes.By analyzing the supercritical extraction of nitraria seed oil's physical and chemical properties and GC/MS,it can show that: the acid value is 3.36 mgKOH/g;the peroxide value is 0.48 g/100 g;the iodine value is 143.2 g/100 g;the saponification value is 196 mg/g;and the moisture and volatile matter content is 0.12 g/100 g.There are 11 kinds of fatty acids detected,and the quality occupies 70.75% of the total fatty acids,which indicates that supercritical CO2 extraction process of the nitraria seed oil is stable and reliable,and it has a very high application value,providing a reference for the further development and utilization.