The chemical components and sensory quality of green tea infusion with different tea polyphenols concentrations were compared and investigated during the sterilization and storage. The results showed that, the stability of green tea infusions with different tea polyphenols concentrations was different. During the sterilization and storage, the color of green tea infusion darkened and turned red, contents of tea polyphenols and catechins decreased markedly, contents of flavones and gallic acid increased evidently, contents of caffeine and amino acids reduced slightly, sensory quality reduced obviously and ripe taste enhanced. With the increasing of tea polyphenols concentration, the change of chemical components and sensory quality strengthen, the degree of change under the high-temperature (37℃) storage was much larger than that under the low-temperature (4℃) storage. The stability of green tea infusion was relatively higher when tea polyphenols concentration was ranged from 400mg/L to 600mg/L.
XU Yong-quan
,
LIU Ping
,
CHEN Gen-sheng
,
CHEN Jian-xin
,
YUAN Hai-bo
,
YIN Jun-feng
. Effect of Tea Polyphenols Concentration on the Stability of Green Tea Infusion[J]. Journal of Tea Science, 2011
, 31(6)
: 525
-531
.
DOI: 10.13305/j.cnki.jts.2011.06.004
[1] 尹军峰, 许勇泉, 袁海波. 中国大陆液态茶饮料发展趋势及主要技术需求分析[J]. 茶叶科学, 2010, 30(增刊): 588-592.
[2] 窦宏亮, 李春美, 郝菊芳, 等. 绿茶饮料贮藏期间主要生化成分和典型香气成分的变化及相关性研究[J]. 茶叶科学, 2008, 28(3): 181-188.
[3] 张岚翠, 沈生荣. 茶叶及茶饮料贮藏保鲜技术研究进展[J]. 茶叶, 2008, 34(3): 156-160.
[4] 宁井铭, 方世辉, 夏涛, 等. 单宁酶及协同物质对绿茶饮料稳定性的影响[J]. 食品与发酵工业, 2006(6): 69-72.
[5] 钟萝. 茶叶品质理化分析[M]. 上海: 上海科学技术出版社, 1989: 250-350.
[6] Kim ES, Liang YR, Jin J, et al. Impact of heating on chemical compositions of green tea liquor[J]. Food Chemistry, 2007, 103: 1263-1267.
[7] Wang LF, Kim DM, Lee CY.Effects of heat processing and storage on flavanols and sensory qualities of green tea beverage[J]. Journal of Agricultural and Food Chemistry, 2000, 48: 4227-4232.
[8] 潘顺顺. 绿茶鲜汁饮料色素物质组成及其护绿措施研究[D]. 杭州: 浙江大学, 2007: 30-45.
[9] Kumazawa K, Masuda H.Effects of heat processing conditions on the flavor change of green tea drinks[J]. Journal of the Japanese Society for Food Science and Technology, 2005, 1: 34-40.
[10] Kumazawa K, Mauda H.Change in the flavor of black tea drink during heat processing[J]. Journal of Agricultural and Food Chemistry, 2001, 49: 3304-3309.
[11] Akagawa M, Shigemitsu T, Suyama K.Production of hydrogen peroxide by polyphenols and polyphenols-rich beverages under quasi-physiological conditions[J]. Bioscience, Biotechnology and Biochemistry, 2003, 12: 2632-2640.
[12] Aoshima H, Ayabe S.Prevention of the deterioration of polyphenol-rich beverages[J]. Food Chemistry, 2007, 100: 350-355.
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