长林系列品种油茶籽含油率和脂肪酸组成分析研究

Research on Oil Contents and Fatty Acid Composition of Different Changlin Varieties of Camellia oleifera Seeds

对10个引种栽培的长林品种油茶籽含油率和脂肪酸进行了测定。结果表明:采果时间对含油率影响大,不同品种间含油率差异显著。长林3号含油率比原产地高0.80%,长林4,18,23,27号引种后含油率与原产地差异不大,审定的长林3,4,18,23号和27号比对照分别大10.10%,4.65%,6.35%,11.63%和10.51%。油茶籽油脂肪酸主要由油酸、亚油酸、棕榈酸和硬脂酸4种脂肪酸组成。油酸含量在72.40%～84.70%,均值为79.34%;亚油酸含量在4.30%～15.50%,均值为9.47%;棕榈酸含量在6.60%～9.00%,均值为7.75%;硬脂酸含量在1.20%～3.10%,均值为2.03%。

The oil contents and fatty acid compositions of 10 introduced Camellia oleifera varieties seed were determined and analyzed. The results showed that harvest time affected oil percentage and the difference between varieties were significant. Oil percentage of changlin--3 was 0.8% higher than in the region of origin, and oil percentages of changlin--4, changlin--18, changlin--23, and changlin--27 had lit- tle difference with those of original region. The oil contents of changlin--3, changlin--4, changlin--18, changlin-- 23, and changlin -- 27 were 10.10 %, 4.65 %, 6.35 %, 11.63 % and 10.51% higher than that of the control. Camellia oleifera seed oil was mainly composed of oleic acid, linoleic, palmitic acid and stear- ic acid. The content of oleic acid ranged from 72.40% to 84.70% ,and averaged at 79.34% ; the content of linoleic acid ranged from 4.30% to 15.50% , and averaged at 9.47% ; the content of palmitic acid ranged from 6.60% to 9.00% ,and averaged at 7.75% ; the content of stearic acid ranged from 1.20% to 2.10% ,and averaged at 2.03% .