【摘要】 试验分析了K326和红花大金元两品种上、中、下3个部位不同成熟度烤烟叶质体色素(下简称“色素”)和多酚化合物含量的变化。结果表明:各类色素均随着部位和成熟度的提高而降低,而且叶绿素比下降快,且烤后,红花大金元不同部位烟叶的类胡萝卜素含量高于K326;各种多酚化合物含量则随着部位和成熟度的提高而增加。只有采收适熟烟叶,才能保持烟叶内有适宜的类胡萝卜素和多酚化合物含量。更多还原

【Abstract】 The pigment and polyphone in flue cured tobacco leaf from three ripeness for two varieties was investigated.The results show: the pigment decreases from underripen to overripe,and the chlorophyll degrades much quicker than the carotenoid;meanwhile,polyphone increases from underripen to overripe.In order to maintain the appropriate content of the carotenoid and polyphenols in cured leaves,the ripen tobacco leaves should be harvested.更多还原