CAJ | 학술논문

为提高密集烘烤烟叶品质,采用温湿度自控烤烟箱,研究了定色期升温速度对密集烘烤过程中烤烟生理生化特性及烤后品质的影响.结果表明,两处理淀粉酶活性在变黄期差异不大,进入定色期之后,慢升温定色处理的淀粉酶活性逐渐高于快速升温定色处理;多酚氧化酶(PPO)活性各处理均表现为先降低后升高又降低的趋势,且慢升温定色处理的酶活性显著低于快速升温定色处理;慢升温定色处理较快速升温定色处理的叶绿素和类胡萝卜素含量降解的较彻底.定色期不同升温速度对淀粉降解影响较小;慢升温定色处理有利于总糖和还原糖的积累.慢升温定色处理烤后烟叶的经济性状、化学成分、评吸质量均好于快速升温定色处理;慢升温定色处理各方面综合表现最优,有利于烟叶品质的提高.
위제고밀집홍고연협품질,채용온습도자공고연상,연구료정색기승온속도대밀집홍고과정중고연생리생화특성급고후품질적영향.결과표명,량처리정분매활성재변황기차이불대,진입정색기지후,만승온정색처리적정분매활성축점고우쾌속승온정색처리;다분양화매(PPO)활성각처리균표현위선강저후승고우강저적추세,차만승온정색처리적매활성현저저우쾌속승온정색처리;만승온정색처리교쾌속승온정색처리적협록소화류호라복소함량강해적교철저.정색기불동승온속도대정분강해영향교소;만승온정색처리유리우총당화환원당적적루.만승온정색처리고후연협적경제성상、화학성분、평흡질량균호우쾌속승온정색처리;만승온정색처리각방면종합표현최우,유리우연협품질적제고.
In order to improve the quality of bulk curing of flue-cured tobacco, the effects of temperature rising rates (0.33 and 1 oC/h) at leaf-drying stage on physio-biochemistry characters and quality were studied during bulk curing process by using electric-heated flue-curing barn. The result showed that, during yellowing stage, amylase activity was not much difference between the two treatments. However, after entering color fixing period, amylase activity was higher at slow heating rate than at fast heating rate. For both treatment, polyphenol oxidase activity first increased and then decreased. Polyphenol oxidase activity was lower with slow heating rate treatment than fast heating rate treatment at color fixing period. Chlorophyll and arytenoids contents declined more rapidly with slow heating rate treatment than with fast heating rate treatment. Rising temperature rate at leaf-drying stage had less impact on starch degradation. Slow heating rate was beneficial to increase the accumulation of total sugar and reducing sugar. The cured leaves at slow heating rate were better than fast heating rate in economic attributes, chemical components and smoking quality. Slow heating rate was better in general, and it was favorable to the quality improvement of cured leaves.