文献类型：会议论文

英文题名：Static Headspace GC-MS Analysis for Volatile Components in Eleocharis Tuberosa Peel

作者：Yang, Xiao-Mei[1]; Luo, Yang-He[1]; Duan, Zhen-Hua[1]; Liu, Hua-Zhong[2]; Song, Mu-Bo[1]; Gu, Yi-Peng[1]

机构：[1] College of Food and Bioengineering, Hezhou University, Hezhou, 542899, China; [2] College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, 524088, China

会议论文集：International Conference on Manufacturing Technology, Materials and Chemical Engineering, MTMCE - 4. Biological Chemical and Technology

会议日期：June 22, 2018 - June 24, 2018

会议地点：Zhuhai, China

语种：英文

外文关键词：Palmitic acid - Extraction

外文摘要：Volatile components of Eleocharis tuberosa peels were extracted with absolute ether by ultrasonic wave assisted evaporating. The experiment mainly researches on three positive factors solid-liquid ratio, extraction time and ultrasonic power influencing the extraction efficiency. According to the results of one factor optimization, the orthogonal experiment L9(34) was designed to confirm the optimum extraction conditions. The volatile chemical constituents of the extract were separated and identified by GC-MS. The optimal extraction conditions were as follows: solid-liquid ratio was 1:25 g/mL, extraction time was 60 min and ultrasonic power was 250 w. Confirmed by the practice, the average extraction rate was 3.25%, the conditions shown that the method was credible and reliable. There were 10 volatile compositions in the extract from E. tuberosa peels by the ultrasonic assisted extraction method. The relative content of volatile compositions were 2,6-Di-tert-butyl-4-methoxyphenol (45.24%), Ageratochromene II (23.17%), 3,5-Bis(1,1-dimethylethyl) phenol (9.18%), 9,12-Octadecadienoic acid ethyl ester (5.84%), Ethyl palmitate (4.94%), 1-Linolenoylglycerol (4.11%), Dimethyl phthalate (3.30%), 1,3-Dimethyl-5-tert-butyl-2-acetophenone (2.10%), Phenylacetaldehyde (1.42%), Cedrol (0.70%). ? 2018 Institute of Physics Publishing. All rights reserved.