摘要
“红雪茶”和“白雪茶”是滇西北少数民族传统饮用的地衣保健茶;其中,“红雪茶”混杂了梅衣科(Parmeliaceae)金丝属(Lethariella)中的4个地衣种:金丝绣球(Lethariellacashmeriana),金丝刷(L.cladonioides),柔金丝(L.sernanderi)和金丝带(L.zahlbruckneria);“白雪茶”包含了雪茶属(Thamnolia)中的两个种,即:雪茶和雪地茶(Thamnoliavermicularis&T.subuliforms)。利用常规方法测定了两种地衣茶的主要营养成分,并与常见饮茶进行比较,测定结果显示:红雪茶和白雪茶含有多种营养成分,红雪茶粗蛋白质含量为2.69g/100g·DW,粗脂肪3.42g/100g·DW,总糖、可溶性糖、灰分含量分别为5.04g/100g、0.35g/100g、1.74g/100g·DW;白雪茶的粗蛋白质含量为2.81g/100g·DW,粗脂肪2.91g/100g·DW,总糖、可溶性糖、灰分含量分别为0.99g/100g、0.27g/100g、4.18g/100g·DW;两种地衣茶均含有17种氨基酸和多种矿物元素,具有一定营养价值;而两种地衣营养成分的含量存在差异。
'Hongxuecha'and 'Baixuecha',often used by ethnic peoples of the northwest of Yunnan province as the health-promoting lichen teas.Among them,'Hongxuecha'is a mixture of four species of lichens,which belong to Lethariella of Parmeliaceae:Lethariella cashmeriana,L.cladonioides,L.sernanderi and L.zahlbruckneria;and 'Baixuecha'is a mixture of two species of Thamnolia:T.vermicularis and T.subiliforms.In this study,the nutritional components of two different lichen teas have been determined and compared with daily tea,and the results are shown as follows:'Hongxuecha' contains 2.69 g/100 g·DW of crude protein,3.42 g/100 g·DW of crude fat,5.04 g/100 g·DW of total sugar,0.35 g/100 g·DW of dissolve sugar ,and 1.74 g/100 g·DW of ash;while 'Baixuecha' contains 2.81 g/100 g·DW of crude protein,2.91% g/100 g·DW of crude fat,0.99 g/100 g·DW of total sugar,0.27 g/100 g·DW of dissolve sugar,4.18 g/100 g·DW of ash.They both contain 17 kinds of amino acids (tryptophan has not been determined) and a variety of mineral elements,so they are of certain nutrient value.It also indicates in the study that there are differences between the two lichen teas in nutritional components.
出处
《天然产物研究与开发》
CAS
CSCD
2005年第3期340-343,共4页
Natural Product Research and Development
