浙江农业学报

• 食品科学 • 上一篇    下一篇

零陵红衣葱葱油树脂的提取与分析

  

  1. (1.湖南科技学院 化学与生物工程学院,湖南 永州 425199; 2.湖南科技学院 湘南优势植物资源综合利用湖南省重点实验室,湖南 永州 425199; 3.湖南省食品质量监督检验研究院,湖南 长沙 410111)
  • 出版日期:2016-08-25 发布日期:2016-08-04

Study on the extraction and analysis of red onion oleoresin

  1. (1. Department of Biochemistry, Hunan University of Science and Engineering, Yongzhou 425199, China; 2. Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South, Hunan University of Science and Engineering, Yongzhou 425199, China; 3. Hunan Institute of Food Quality Supervision Inspection and Research, Changsha 410111, China)
  • Online:2016-08-25 Published:2016-08-04

摘要: 以零陵红衣葱为原料,探讨不同萃取剂、料液比、时间、温度、提取次数对葱油树脂产品得率的影响,并通过气相色谱—质谱(GCMS)对零陵红衣葱葱油树脂成分进行定性分析,用峰面积归一化法检测各化合物的相对百分含量。结果表明,零陵红衣葱葱油树脂最适提取工艺条件为:以石油醚为萃取剂,提取温度47 ℃、提取时间100 min、料液比1∶8、提取2次。在此条件下,零陵红衣葱葱油树脂的产品得率为0638 4%。在零陵红衣葱葱油树脂样品中共检测出18种挥发性化合物成分,占其色谱流出总量的9781%,其中,含硫化合物占383%,酸类占2447%,酮类占271%,醇类占1706%,酯类占1081%,醛类占036%,包括二甲基二硫醚、1,3二噻烷、己醇、二十烯醇、2甲基2戊醇、3羟基2丁酮、5,7二甲基色酮3甲醛、棕榈酸、十八二烯酸、十八烯酸、邻苯二甲酸二辛酯。

关键词: GCMS, 零陵红衣葱, 葱油树脂

Abstract: In the present study, Lingling red onion was taken as raw material. Different extraction solvents, solidliquid ratio, reaction time, reaction temperature and extraction times were employed to examine the influences on extraction yield of oleoresin. The chemical constituents were separated and identified by gas chromatographymass spectrometry (GCMS), and the relative contents in percentage of compounds were determined by peak area normalization method. It was shown that the optimal extraction conditions were as follows: petroleum ether as extraction solvent, reaction temperature of 47 ℃, reaction time of 100 min, solidliquid ratio of 1∶8 and extraction times of twice. Under this conditions, the extraction rate could reach 0638 4% from 50 g Lingling red onion. A total of 18 volatile compounds were separated, and they accounted for 9781% of the total extractions, in which, sulfurcontaining compounds were 383%, acids were 2447%, ketones were 271%, alcohols were 1706%, esters were 1081% and aldehydes were 036%. The constituents included dimethyl disulfide, 1,3dithiane, hexanol, gadoleyl alcohol, 2methyl2pentanol, 3hydroxy2butanone, 5,7dimethylchromone3carboxaldehyde, palmitic acid, octadecadienoic acid, octadecenoate, dioctyl phthalate.

Key words: GCMS, Lingling red onion, onion oleoresin