【摘要】：分別采用同時(shí)蒸餾萃取(SDE)、靜態(tài)頂空(SHS)和固相微萃取(SPME)三種不同香氣萃取方式提取香氣物質(zhì),進(jìn)行氣相色譜-質(zhì)譜(GC-MS)分析,結(jié)合保留指數(shù)法對(duì)武夷水仙茶的揮發(fā)性物質(zhì)進(jìn)行了研究。三種萃取方法共鑒定出179種揮發(fā)性成分,其中SDE法121種、SPME法114種及SHS法61種。三種方法共有化合物有21種,SDE和SPME法共有化合物有72種,SHS和SDE共有化合物有25種,SHS和SPME共有化合物有37種。進(jìn)一步分析已確定的揮發(fā)性成分,SDE比SPME多分離出醇類5種、烷烴類6種、酸類2種、酯類1種、酚類1種及醌類1種;SPME比SDE多分離出雜環(huán)類2種、醛類4種、芳香烴類1種及烯類2種。結(jié)果表明,SDE和SPME兩種方法結(jié)合提取茶葉中的香氣物質(zhì)可以更全面,共鑒定出162種化合物。以花香、果香、木香、堅(jiān)果香、烘焙香、焦糖香的香氣物質(zhì)為主。
[Abstract]:The aroma substances were extracted by simultaneous distillation extraction of (SDE), static headspace (SHS) and solid phase microextraction of (SPME) respectively, and analyzed by gas chromatography-mass spectrometry (GC-MS). The volatile substances of Wuyi Narcissus tea were studied by retention index method. A total of 179 volatile compounds were identified by three extraction methods, including 114 by SDE and 61 by SHS. There are 21 kinds of chemical compounds in the three methods. There are 72 kinds of SDE and 72 kinds of compounds. There are 25 species of SPME and 37 species of SPME. Compared with SPME, the identified volatile components, such as 5 kinds of alcohols, 6 kinds of alkanes, 2 kinds of acids, 1 species of esters, 1 species of phenols and 1 species of quinones, were more isolated than SDE, and 4 kinds of aldehydes and heterocyclic compounds were obtained. One kind of aromatic hydrocarbons and two kinds of alkenes. The results showed that the combination of SDE and SPME could be used to extract aroma compounds from tea more comprehensively, and 162 compounds were identified. Floral, fruity, wood, nutty, baking, caramel aroma is the main aroma substances.
【作者單位】： 武夷學(xué)院茶與食品學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(21407118) 福建省高等學(xué)校新世紀(jì)優(yōu)秀人才支持計(jì)劃項(xiàng)目(閩教科[2016]23號(hào)) 福建省中青年教師教育科研重點(diǎn)項(xiàng)目(JA13314) 福建省科技計(jì)劃重點(diǎn)項(xiàng)目(2015N0035) 國家級(jí)大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃項(xiàng)目(201510397015)
【分類號(hào)】：O658.2;TS272.5
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本文編號(hào)：2259799