|
| 不同地区茶叶籽油理化指标及脂肪酸组成的比较分析 |
| Physicochemical properties and fatty acid compositions of tea seed oils from different areas |
| |
| DOI： |
| 中文关键词: 茶叶籽 茶叶籽油 理化指标 脂肪酸组成 |
| 英文关键词:tea seed tea seed oil physicochemical property fatty acid composition |
| 基金项目: |
|
| Hits: 1523 |
| Download times: 0 |
| 中文摘要: |
| 茶叶籽油是我国新批准的新型可食用植物油，目前人们对其了解和研究还比较有限。为丰富茶叶籽及茶叶籽油的研究数据，选用了我国9个地区的茶叶籽及其所制得的茶叶籽油进行研究。结果表明：不同地区茶叶籽的粗脂肪含量差异较大，范围在22.6%～33.1%之间，淀粉含量也与地域有关；不同地区茶叶籽油的酸值和过氧化值两个评价植物油品质最为重要的指标差异较大，而相对密度、碘值和皂化值差异不大；茶叶籽油中共检出棕榈酸、油酸、亚油酸、硬脂酸、亚麻酸和花生酸6种脂肪酸，且不同地区含量存在差异，湖北和湖南的茶叶籽油中不含花生酸，福建的不含硬脂酸，茶叶籽油不饱和脂肪酸含量在80%以上，各地区之间差异不大，福建的含量最高，为84.47%，但各地区间茶叶籽油中的多不饱和脂肪酸含量差异较大，四川的最高，为29.92%。 |
| 英文摘要: |
| Tea seed oil is a novel kind of edible vegetable oil approved at home，and few researches are implemented at present. For enriching research information of tea seed and tea seed oil, tea seeds and its oils from nine areas at home were studied. The results showed that the crude fat contents of tea seeds from different areas ranged from 22.6% to 33.1%，and starch contents were also different from areas.Acid values and peroxide values of tea seed oils from different areas had great differences，but relative densities, iodine values and saponification values were similar. There were six types of fatty acids detected in tea seed oils including palmitic acid，oleic acid，linoleic acid，stearic acid，linolenic acid and arachic acid，while arachic acid was absent in tea seed oils from Hubei and Hunan provinces and no stearic acid was detected in tea seed oil from Fujian province. There was no difference in unsaturated fatty acids contents(more than 80%) among tea seed oils from all the selected areas and it was the highest(84.47%)in the tea seed oil from Fujian province.Polyunsaturated fatty acids contents of tea seed oils varied with sources of raw materials, which was richest (29.92%)in the tea seed oil from Sichuan province. |
| 查看全文 View/Add Comment Download reader |
| Close |
