茶叶科学
茶葉科學
다협과학
2015年
3期
209-216
,共8页
齐冬晴%周跃斌%沈程文%蔡翔%王晓%余江意
齊鼕晴%週躍斌%瀋程文%蔡翔%王曉%餘江意
제동청%주약빈%침정문%채상%왕효%여강의
千两茶%香气%特点
韆兩茶%香氣%特點
천량다%향기%특점
Qian-liang tea%aroma%characteristic
采用同时蒸馏萃取(SDE)技术,联合 GC-MS鉴定方法分析了9个安化千两茶中的挥发性成分,结合感官审评初步探讨了这些成分的香气品质特点。感官审评结果表明,千两茶香气以松木香、陈香为主要特点,部分千两茶香气略带粽叶香或粗老气、烟气、陈气味,个别千两茶略带酸味。GC-MS 分析结果表明,香气物质相对含量最多的为醇类(9个样品平均相对含量为21.97%);其次为酮类(20.11%)、醛类(18.69%)、杂氧化合物(18.39%)、脂肪酸类(12.71%)、烷烃类(1.70%)、含量最少的是杂环类(1.21%)。可见对千两茶香气起主要作用的是醇类、酮类、醛类和杂氧化合物。
採用同時蒸餾萃取(SDE)技術,聯閤 GC-MS鑒定方法分析瞭9箇安化韆兩茶中的揮髮性成分,結閤感官審評初步探討瞭這些成分的香氣品質特點。感官審評結果錶明,韆兩茶香氣以鬆木香、陳香為主要特點,部分韆兩茶香氣略帶粽葉香或粗老氣、煙氣、陳氣味,箇彆韆兩茶略帶痠味。GC-MS 分析結果錶明,香氣物質相對含量最多的為醇類(9箇樣品平均相對含量為21.97%);其次為酮類(20.11%)、醛類(18.69%)、雜氧化閤物(18.39%)、脂肪痠類(12.71%)、烷烴類(1.70%)、含量最少的是雜環類(1.21%)。可見對韆兩茶香氣起主要作用的是醇類、酮類、醛類和雜氧化閤物。
채용동시증류췌취(SDE)기술,연합 GC-MS감정방법분석료9개안화천량다중적휘발성성분,결합감관심평초보탐토료저사성분적향기품질특점。감관심평결과표명,천량다향기이송목향、진향위주요특점,부분천량다향기략대종협향혹조로기、연기、진기미,개별천량다략대산미。GC-MS 분석결과표명,향기물질상대함량최다적위순류(9개양품평균상대함량위21.97%);기차위동류(20.11%)、철류(18.69%)、잡양화합물(18.39%)、지방산류(12.71%)、완경류(1.70%)、함량최소적시잡배류(1.21%)。가견대천량다향기기주요작용적시순류、동류、철류화잡양화합물。
Simultaneous distillation extraction (SDE) technique combined with gas chromatography-mass spectrometry (GC-MS) identification method were applied to analyze the volatile components in nine kinds of An-hua Qian-liang tea, in which, the aroma characteristic of the components were d iscussed by sensory evaluation method. Results of sensory evaluation indicated that the main features of An-hua Qian-liang tea are fragrance of pine wood and stale flavour. Some An-hua Qian-liang teas possess a slight fragrance of reed leaves and aroma of coarse stems as well as the stale flavour and smoke. A few An-hua Qian-liang tea possesses a little sour taste. Results of GC-MS analysis indicated that alcohols, ketones, aldehydes, heterocyclic oxygen compounds play a major role on An-hua Qian-liang tea aroma. The alcohol content is the largest (21.97%), followed by aldehydes (20.11%), ketones (18.69%), heterocyclic oxygen compounds (18.39%), fatty acids (12.71%), lipids (1.70%) and heterocyclic (1.21%) compounds.