Cupressus sempervirens var. horizentalis seed oil: Chemical composition, physicochemical characteristics, and utilizations

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• 作者：Imededdine Arbi Nehdi ; ^{inahdi@ksu.edu.sa}
• 关键词：Cypress ; Seed oil ; Fatty acids ; UV spectrum ; Cosmetic formulations ; Biodiesel feedstock
• 刊名：Industrial Crops and Products
• 出版年：2013
• 期刊代码：56_09266690
• 类别：abs
• 出版时间：January, 2013
• 卷：41
• 期：Complete
• 页码：381-385
• 文件大小：306 K

摘要

The lipid fraction of cypress (Cupressus sempervirens) seeds was extracted and analyzed for chemical and physical properties, i.e., fatty acid composition (GC-MS), acidity (as%of oleic acid), iodine value, triacylglycerol (TAG) composition (HPLC), saponification value, specific extinctions (K₂₃₂ and K₂₇₀), thermal profile (DSC), and tocopherol composition (HPLC). The oil's fatty acid composition revealed the major fatty acids to be 伪-linolenic, linoleic, oleic, and palmitic acid (35.11, 25.08, 15.07, and 11.11%, respectively). 纬-Tocopherol was the major tocopherol (80%) with the remainder being 伪- and 未-tocopherol. The polyunsaturated TAGs LLLn, LLnLn, LLL, and LnLnLn (L, linoleic and Ln, linolenic) were the oil's major TAG components. The oil exhibited two thermal profile peaks, indicating two thermal structural transitions, one at low temperature (鈭?8.34 掳C) with a 54.66 J/g enthalpy and the other at high temperature (鈭?3.41 掳C) with a 22.49 J/g enthalpy. The oil showed high absorbance in the UV-B and UV-C ranges. The many positive characteristics observed here in this oil, as well as the favorable botanical properties of the tree, suggest that this oil could have important applications in non-food industries.