根據一篇發(fā)布在《農業(yè)與食品化學期刊》上的研究,一種在中國南方山區(qū)發(fā)現的新品種野生茶,只含很少的咖啡因,有的甚至不含;這種茶被稱為洪崖茶。
“Hongyacha is a wild tea plant only distributed in thenarrow mountain area at altitudes of 2,300-3,300 feet (700-1,000 m) of several neighboring villages inthe southern region of Fujian Province,” said leadauthor Dr. Liang Chen from China’s Tea Research Institute and colleagues.
該論文的主要作者是來自中國茶葉研究所的Liang Chen博士,Chen博士及其同事說:“洪崖茶這種野生茶樹只在福建省南方山區(qū)很窄的一個村落帶附近生長,海拔700-1000米。”
“Local people believe that drinking this tea can reduce internal heat, cure colds, and healstomach pains, etc.”
“當地人相信喝這種茶能夠去內熱、治療感冒、治胃痛等等。”
“However, given its narrow and special distribution, detailed information about hongyacha islacking.”
“不過,受限于它狹窄且特殊的生長區(qū)域,現在有關洪崖茶的詳細信息還比較少。”
In the new study, Dr. Chen and co-authors characterized the chemical components ofhongyacha by using high-performance liquid chromatography.
在新的研究中,Chen博士與其他幾位聯合作者運用高性能的色譜分析法確定了洪崖茶的化學成分。
They found that buds and leaves of hongyacha contain several potentially health-promotingcompounds and virtually no caffeine.
他們發(fā)現洪崖茶的芽和葉含有多種可能對健康有益的化合物,并且?guī)缀醪缓Х纫颉?/p>
Digging deeper, the team found that hongyacha has a mutation in the gene encoding theenzyme tea caffeine synthase, which promotes caffeine production in most tea plants.
在更深入的研究之后,團隊發(fā)現洪崖茶的一個基因發(fā)生了變異,這個基因正是編碼茶葉咖啡因合成酶的基因,在大部分茶種種這個基因都會促進茶樹分泌咖啡因。
“Naturally low-caffeine hongyacha could possibly become a popular drink because of itsdistinct composition and unique health benefits,” the scientists said.
這些科學家們說:“考慮到它獨特的成分和保健功效,洪崖茶這種天然的低咖啡因茶或許能成為一種流行的飲品。”