红花油茶果的主要成分及其种子油的脂肪酸组成测定(英文)

Proximate composition of Camellia chekiangoleosa Hu fruit and fatty acid constituents of its seed oil

用化学分析法测定红花油茶果的果皮、茶籽壳、茶籽仁中的主要成分,用毛细管气相色谱法分析红花油茶籽油的脂肪酸组成,并对茶籽仁的子叶细胞形态进行观察.结果表明:红花油茶籽仁(干基)中粗脂肪含量为60.3%,粗蛋白质含量为8.8%,茶皂素含量为10.34%;红花油茶籽壳(干基)中粗蛋白质含量为2.5%,粗纤维为73.4%,茶皂素含量为4.08%;红花油茶果的果皮(干基)中粗蛋白质含量为4.0%,粗纤维为31.1%,茶皂素含量为20.05%;红花油茶果子叶细胞平均大小为64.2μm×60.8μm,细胞壁平均厚度为3.03μm,细胞壁厚度与细胞大小的比值为7.76×10-4,细胞内脂体为椭圆形,大小为1.0～1.3μm.以上数据表明,红花油茶果可用作食品、化工和化妆品工业原料.对油脂的脂肪酸组成测定表明,红花油茶籽油属油酸型油,油中不饱和脂肪酸含量高达84.83%,其脂肪酸组成符合现代保健油脂的标准.

The proximate composition of Camellia chekiangoleosa Hu fruit was determined by chemical analysis,and its oil fatty acids were measured by capillary gas chromatography.The morphological structure of C.chekiangoleosa cotyledon cells was observed under the microscope.The results showed that C.chekiangoleosa kernel contained 60.3% crude fat,8.8% crude protein and 10.34% camellia saponin on dry basis.C.chekiangoleosa testa held 2.5% crude protein,73.4% crude fiber,and 4.08% camellia saponin on dry basis.C.chekiangoleosa pericarp had 4.0% crude protein,31.3% crude fiber,and 20.05% camellia saponin on dry basis.The average size of C.chekiangoleosa cotyledon cells was 64.2 μm×60.8 μm.The average thickness of their cell wall was 3.03 μm and the ratio of cell wall thickness to cell size was 7.76×10-4.The lipid bodies observed in C.chekiangoleosa cotyledon cells were elliptic with a particle size of 1.0 to 1.3 μm.The data suggested that C.chekiangoleosa fruit could contribute to the industries of food,chemistry,cosmetic,etc.In addition,the analysis of capillary gas chromatography showed that C.chekiangoleosa seed oil belonged to oleic acid-type oil with 84.83% unsaturated fatty acids,indicating its fatty acid composition was coincided with the modern standards for a healthy vegetable oil.