CAJ | 학술논문

以云抗10号大叶种茶为研究对象,分别采摘其芽头、第一叶、第二叶、第三叶、第四叶和茶梗,分析其生化特性.结果表明:芽头的总灰分、可溶性糖、铁、锰和氟元素含量低于叶片中的含量,而水溶性灰分(占总灰分比例)、粗纤维、铜、锌、茶氨酸和咖啡碱的含量高于叶片中的含量,芽头的茶多酚、水浸出物和酯型儿茶素含量低于嫩叶,高于老叶.茶梗的总灰分、水浸出物、茶多酚、铜、氟、咖啡碱、儿茶素总量均低于芽头和叶片,而粗纤维、铁和茶氨酸含量高于芽头和叶片.不同芽叶生化成分变异系数高于15%的有铜、锌、锰、氟、粗纤维、可溶性糖、茶氨酸、咖啡碱、儿茶素及其单体类物质,由此表明不同芽叶的生化成分差异较大.
이운항10호대협충다위연구대상,분별채적기아두、제일협、제이협、제삼협、제사협화다경,분석기생화특성.결과표명:아두적총회분、가용성당、철、맹화불원소함량저우협편중적함량,이수용성회분(점총회분비례)、조섬유、동、자、다안산화가배감적함량고우협편중적함량,아두적다다분、수침출물화지형인다소함량저우눈협,고우로협.다경적총회분、수침출물、다다분、동、불、가배감、인다소총량균저우아두화협편,이조섬유、철화다안산함량고우아두화협편.불동아협생화성분변이계수고우15%적유동、자、맹、불、조섬유、가용성당、다안산、가배감、인다소급기단체류물질,유차표명불동아협적생화성분차이교대.
The biochemical compositions in tea buds, first leaf, second leaf, third leaf, fourth leaf and tea-stalk were analyzed, which picked from the shoots of Yunkang 10 (Camellia sinensis), a kind of big leaf species. The results showed that the content of total ash, soluble sugar, iron (Fe), manganese (Mn) and fluoride (F) in tea buds were lower than those of tea leaves, the content of water soluble ash, crude fiber, copper (Cu), zinc (Zn), theanine and caffeine in tea buds were higher than tea leaves, and the content of tea polyphenols, water extracts and ester-catechins in tea buds were lower than young leaves but higher than old leaves. The content of total ash, water extracts, tea polyphenols, Cu, F, caffeine and catechins in tea-stalk were lower than buds and leaves, and the content of crude fiber, Fe and theanine in tea-stalk were higher than buds and leaves. The coefficients of variation calculated from the content of Cu, Zn, Mn, F, crude fiber, soluble sugars, theanine, caffeine and catechins were more than 15% in different tea buds and leaves, which suggested that biochemical compositions are very different in tea buds and leaves.