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《Journal of Henan Agricultural University》 2001-02
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The analysis of starch content during flue-curing process and chemical components after flue-curing in tobacco leaves

YANG Li jun 1,GONG Chang rong 1,CHEN Jiang hua 2,et al (1.Agronomy College of Henan Agricultural University,Zhengzhou 450002,China; 2.Tobacco Production,Purchase and Sales Corporation of China,Beijing 100053,China)  
The studies on the degradation of the starch in tobacco leaves from several main tobacco production regions in Henan Province during flue curing process indicated that the starch had the similar degradation laws in different ecological regions and different breeds during flue curing process.The laws were that the degradation quantity of the starch was the greatest in yellowing stage in the whole curing process and took up 54 to 67 percent of the the starch contained in fresh tobacco leaves.The degradation speed was higher in 0~48 hours than in other stages.The NC89 average degradation speed was 0.31% per hour and the Yunyan 85 was 0.34% per hour.The degradation speed had been slowing down from color fixing to drying vein while the degradation quantity was little.Sanmenxia’s samples contained the highest amount of starch in fresh tobacco but degraded the most completely after curing and had the best general quality.
【CateGory Index】: S572
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