关键词: 雪茄, 成熟度, 含水率, 碳水化合物, 淀粉酶, 淀粉磷酸化酶, 化学成分

Abstract: In order to understand the influence of different maturities on the quality of cigar tobacco leaves, with cigar variety ‘H382’ as material,  a field experiment was conducted to study the differences of carbohydrate content and its related enzymes activities among different maturities cigar leaves, as well the quality of flue-cured cigar leaves with different maturities treatments, including Unripe, Ripe and Overripe. The results showed that water loss rate and moisture content of cigar leaves during air drying in Ripe treatment were suitable for ripening and harvesting, thus promoting the transformation of internal substances. The starch content in Ripen leaves was the lowest among three maturities leaves, thus suggested their starch degradation was relative fast and thorough. Meanwhile the contents of total sugar and reducing sugar were relatively higher, and the activities of amylase and starch phosphatase were all the highest in Ripe leaves. The main chemical components of the air-cured cigar leaves scored the highest  in Ripe treatment. The present research provided theoretical basis for cigar tobacco leaf harvesting in Wuzhishan, Hainan province.

Key words: cigar, maturity, moisture content, carbohydrate, amylase, starch phosphorylase, chemical composition