本文選題：有機溶劑提取 + 分蘗蔥頭�。� 參考：《食品科學》2017年12期

【摘要】：為研究有機溶劑對分蘗蔥頭中有機硫化合物提取及成分的影響,采用二氯甲烷、乙酸乙酯、正己烷3種溶劑提取分蘗蔥頭中有機硫化合物,并利用頂空固相微萃取和氣相色譜-質譜聯(lián)用技術對不同溶劑提取到有機硫化合物進行比較分析。結果表明:二氯甲烷提取分蘗蔥頭中有機硫化合物的最佳工藝條件為浸提時間4 h、料液比1∶4(g/m L)、攪拌速率250 r/min,在此條件下有機硫化合物得率為(0.413 3±0.007)%。乙酸乙酯、正己烷有機硫化合物得率分別為(0.273 3±0.011)%、(0.288 9±0.009)%。3種溶劑共提取分離出45種組分,均檢測出9種有機硫化合物,其中相對含量較高的均為噻吩類和硫醚類。另外,以二氯甲烷為溶劑提取出獨有的有機硫化合物12種;以乙酸乙酯為溶劑提取出獨有的有機硫化合物3種;以正己烷為溶劑提取出獨有的有機硫化合物8種。
[Abstract]:In order to study the effects of organic solvents on the extraction and composition of organic sulfur compounds from tiller onion, organic sulfur compounds from tiller onion were extracted with three solvents: dichloromethane, ethyl acetate and n-hexane. Headspace solid phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS) were used to compare and analyze organic sulfur compounds extracted from different solvents. The results showed that the optimum conditions for extraction of organic sulfur compounds from tiller onion by dichloromethane were as follows: extraction time 4 h, ratio of solid to liquid 1:4(g/m L ~ (2 +), stirring rate 250 r / min, and the yield of organic sulfur compounds was 0.413 3 鹵0.007% under these conditions. The yields of ethyl acetate and n-hexane organic sulfur compounds were 0.273 3 鹵0.011% and 0.288 9 鹵0.009%, respectively. 45 organic sulfur compounds were isolated from ethyl acetate and n-hexane organic sulfur compounds. Nine organic sulfur compounds were detected, among which thiophene and sulfides were higher in relative content. In addition, 12 kinds of organic sulfur compounds were extracted with dichloromethane as solvent, 3 kinds with ethyl acetate as solvent and 8 kinds with n-hexane as solvent.
【作者單位】： 吉林農業(yè)大學食品科學與工程學院;
【基金】：吉林農業(yè)大學人才計劃項目(20160509)
【分類號】：O657.63;TS255.7

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