CAJ | 학술논문

为探明不同时期茶树活性成分的变化规律,采用高效液相色谱法(HPLC),对不同时间采摘的福鼎大白茶鲜叶氨基酸(amino acids,AA)、茶多酚(tea polyphenols,TP)、咖啡碱(caffeine,CAF)、没食子酸(gallic acid,GA)、表没食子儿茶素(epicatechin gallate,EGC)、表儿茶素没食子酸(epicatechin gallate,ECG) 及表没食子儿茶素没食子酸酯(epigallocatechin gallate,EGCG)等生化成分含量进行分析比较.结果显示:福鼎大白茶鲜叶中儿茶素组分总含量在12.1 mg/g~18.7 mg/g之间,其中样品4 EGCG含量最高,3月份采摘一芽二叶鲜叶儿茶素品质指数最高为15.66,其儿茶素苦涩味指数也是样品中百分比最高的,儿茶素的品质指数与苦涩味指数、氨酚比呈正相关.
위탐명불동시기다수활성성분적변화규률,채용고효액상색보법(HPLC),대불동시간채적적복정대백다선협안기산(amino acids,AA)、다다분(tea polyphenols,TP)、가배감(caffeine,CAF)、몰식자산(gallic acid,GA)、표몰식자인다소(epicatechin gallate,EGC)、 표인다소몰식자산(epicatechin gallate,ECG) 급표몰식자인다소몰식자산지(epigallocatechin gallate,EGCG)등생화성분함량진행분석비교.결과현시:복정대백다선협중인다소조분총함량재12.1 mg/g~18.7 mg/g지간,기중양품4 EGCG함량최고,3월빈채적일아이협선협인다소품질지수최고위15.66,기인다소고삽미지수야시양품중백분비최고적,인다소적품질지수여고삽미지수、안분비정정상관.
To determine and compare the contents of amino acids (AA), tea polyphenols (TB), gallic acid (GA), caffeine(CAF), epicatechin gallate (EGC), epigallo catechin gallate (EGCG) and epicatechin gallate (ECG) in tea samples from Jiangxi province by high performance liquid chromatography (HPLC). The samples were extracted by hot water. The results was that tea catechin components in the five samples total content between 12.1 mg/g-18.7 mg/g, on which the highest content of traditional green tea EGCG,the highest catechin quality index was 15.66 in March to pick a bud leaf samples, The catechin astringent index was the highest percentage in that sample, CAI change in trend and the change trend of CAI and AA/TB.