title: [Oil content of Pyracantha seeds and its relations to soil nutrients in northwestern Hunan Province].
abstract: 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.
authors.affiliation: College of Resources and Planning Sciences, Jishou University, Zhangjiajie 427000, Hunan, China. tkhthllh@126.com
authors.forename: Ke-Hua
authors.initials: KH
authors.lastname: Tang
authors.forename: Yong
authors.initials: Y
authors.lastname: Xun
authors.forename: Weng
authors.initials: W
authors.lastname: Ding
authors.forename: Yue-Feng
authors.initials: YF
authors.lastname: Li
authors.forename: Gong-Xi
authors.initials: GX
authors.lastname: Chen
mesh_terms: D002118:Calcium / Q000032:analysis; D002681:China; D017753:Ecosystem; D019787:Linoleic Acid / Q000032:analysis*; D008274:Magnesium / Q000032:analysis; D010938:Plant Oils / Q000737:chemistry; D027824:Rosaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D012987:Soil / Q000032:analysis*
chemical_list: D010938:Plant Oils; D012987:Soil; D019787:Linoleic Acid; D008274:Magnesium; D002118:Calcium