湘西北火棘籽油脂含量及其与土壤养分的关系

对湘西北岩溶山区5个生境火棘属植物的籽含油率与油脂组分进行了测定,探讨了土壤养分与火棘籽含油率及籽油主要组分的关联性.结果表明:土壤全磷与籽油中的亚油酸呈正相关,其他土壤元素与籽油脂肪酸无关联性;火棘籽油维生素E浓度与土壤全钙、全镁呈显著正相关.湘西北火棘籽最高含油率为5.9%,籽油中维生素E平均浓度达9.9g·kg-1,籽油中主要组分亚油酸、油酸和软脂酸的相对含量分别为63.7%、20.8%和13.2%.

Oil content of Pyracantha seeds and its relations to soil nutrients in northwestern Hunan Province

Pyracantha seeds were collected from five habitats in the Karst region of northwestern Hunan Province, and the oil content and its components were determined, with their relations to soil nutrients studied. The results showed that soil total P had positive correlation with the linolic acid in P. fortuneana seed oil, while other soil nutrients had no correlations with the fat acids in the oil. The vitamin E in seed oil had significant positive correlations with soil total Ca and total Mg. The P. fortuneana seeds in test region had the maximum oil content of 5.9%, and the average vitamin E content of 9.9 g x kg(-1). The relative contents of linolic acid, oleic acid and palmic acid were 63.7%, 20.8% and 13.2%, respectively.