摘要
采用Ca2+、Fe2+、Mg2+、K+、Al3+、Zn2+等6种不同金属离子含量的水冲泡冷溶性速溶绿茶,研究水中金属离子对速溶绿茶感官品质的影响。结果表明,不同离子水质对冷溶性速溶绿茶的溶解性及其感官品质差异显著,其中Ca2+、Fe2+、Al3+、Zn2+等金属离子影响较大。研究还初步提出了冷溶性速溶绿茶冲泡用水质指标。
Effects of metal ions on the sensory quality of instant green tea was investigated by dissolving instant green tea in water with certain concentration of 6 different metal ions, including Ca^2＋, Fe2~, Mg^2＋, K＋, Al^3＋ and Zn^2＋. The results showed that the sensory quality of cold instant green tea is significantly affected by water quality and this effect is even more deep by Ca^2＋, Fe^2＋, Al^3＋ and Zn^2＋. This preliminary study proposed the quality indexes of water for dissolving cold soluble instant green tea.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2009年第7期99-105,共7页
Food Science
基金
公益性行业(农业)科研专项(NYHYZX07-021)
浙江省重大科技专项项目(2008C12038)
关键词
冷溶性速溶绿茶
金属离子
水质
cold soluble instant green tea
metal ion
water quality
