不同方法提取无核白葡萄干中脂肪酸的研究.PDF

6 6 Vol. 6 No. 6 2015 6 Journal of Food Safety and Quality Jun. , 2015 周小梅, 李园月, 吴广枫* (, 100083) 摘 要: 目的 方法 , 4 , (84.69%) 结果 , , 16 , 11 , 5 -, 结论 -, 关键词: -; ; ; - Fatty acid extraction of Thompson seedless raisin by different methods * ZHOU Xiao-Mei, LI Yuan-Yue, WU Guang-Feng (College of Food Science Nutritional Engineering, China Agricultural University, Beijing 100083, China) ABSTRACT: Objective To develop an effective method for the extraction of fatty acid in raisin. Methods Thompson seedless raisin was analyzed in this study, and its fatty acid composition and content were determined by gas chromatography-mass spectrometry (GC-MS). Four extraction methods were adopted to extract the fatty acid in Thompson seedless-Sun dried raisins (TS-SD, soluble solids content is 84.69%). Results No category difference of fatty acid was detected between different methods. 16 kinds of fatty acids were determined in TS-SD, including 11 kinds of saturated fatty acids and 5 kinds of unsaturated fatty acids. When liquid-liquid extraction-methanol (LLE-M) was used as extraction method, the total content of saturated fatty acid (SFA), unsaturated fatty acid (UFA) and the fatty acid (FA) was found to be higher. Conclusion LLE-M method