摘要:分析了8個全麥苦蕎茶、15個造粒成型苦蕎茶、2個苦蕎葉芽茶共25個苦蕎茶產品的總黃酮含量,結果表明,三類苦蕎茶總黃酮含量平均值高低依次是全麥苦蕎茶<造粒成型苦蕎茶<苦蕎葉芽茶,總黃酮含量之比全麥苦蕎茶∶造粒成型苦蕎茶∶苦蕎葉芽茶為1.00∶2.51∶3.57;同一類型苦蕎茶之間總黃酮最高含量平均值和最低含量平均值比值最大的是造粒成型苦蕎茶,總黃酮含量差異性最大的是苦蕎葉芽茶,其次是造粒成型苦蕎茶,最小的是全麥苦蕎茶。
關鍵詞:苦蕎茶;總黃酮;涼山
中圖分類號:S571.1;Q949.744.06(712LS)文獻標識碼:A 文章編號:0439-8114(2011)18-3811-04
Comparison and Analysis on the Content of Total Flavonoids in Liangshan Tartary Buckwheat Tea
GONG Fa-yong
(School of Applied and Chemical Engineering, Xichang College, Xichang 615013, Sichuan,China)
Abstract: Total flavonoid contents in 25 tartary buckwheat tea products including 8 wholewheat tartary buckwheat tea, 15 granulated tartary buckwheat tea and 2 tartary buckwheat leaf bud tea were analyzed. The results showed that the levels of the total flavonoid contents in the 3 types of tartary buckwheat tea were as follows, wholewheat tartary buckwheat tea <granulated tartary buckwheat tea < tartary buckwheat leaf bud tea; and the content ratio of wholewheat tartary buckwheat tea: granulated tartary buckwheat tea: tartary buckwheat leaf bud tea was 1.00∶2.52∶3.57. The ratio of highest and lowest content appeared in granulated tartary buckwheat tea; the most variable content of total flavonoid was in tartary buckwheat leaf bud tea, followed by granulated tartary buckwheat tea and wholewheat tartary buckwheat tea.
Key words: tartary buckwheat tea; total flavonoids; Liangshan
苦蕎麥屬蓼科雙子葉植物,俗稱苦蕎,常稱為韃靼蕎麥。苦蕎及其制品具有降血糖、降血脂,增強人體免疫力的作用,對糖尿病、高血壓、高血脂、冠心病、中風等病人都有輔助治療作用[1-4],這一結果已被世界衛生組織(WHO)確認。涼山州現有苦蕎加工企業20余家,產品形式主要有苦蕎米、苦蕎粉、苦蕎羹、苦蕎茶、蕎麥酒、蕎麥醋、苦蕎面條、苦蕎薩琪瑪、蘆丁香菜等。其中,苦蕎茶因其生產工藝簡單、附加值較高而成為各苦蕎加工企業爭相生產的產品。苦蕎茶按其原料特性可分為全麥苦蕎茶、造粒成型苦蕎茶和苦蕎葉芽茶。全麥苦蕎茶由苦蕎米經過篩選、烘烤等工序加工而成,“全麥”包含兩個意思,一指生產原料是完整的脫殼苦蕎粒,二指生產原料全部是苦蕎,不添加其他任何成分;造粒成型苦蕎茶主要以苦蕎麥麩和(或)苦蕎粉為原料,添加其他成分,經擠壓成型、干燥、烘炒提香等工序加工而成;……