不同装烟方式对烟叶色泽·酚类物质及抗氧化能力的影响

目的]考察不同装烟方式对烟叶品质的影响。方法]采用烟篦、烟夹和烟筐3种装烟方式进行烤烟,对烟叶的色泽、酚类物质和抗氧化能力进行了比较研究。结果]研究表明,烟夹和烟篦装烟方式下的烟叶L*、a*、b*值均高于烟筐烤烟,3种装烟方式的烟叶a*、b*值之间没有显著性的差异,L*值则有显著性差异(P0.05),h值中烟夹和烟筐装烟方式显著低于烟篦装烟。烟篦烤烟的总酚、绿原酸含量最高,烟夹烤烟次之,烟筐烤烟的最低,且有显著性的差异(P0.05),而芸香苷含量差别不大。3种装烟方式的抗氧化能力顺序(DPPH自由基清除能力和还原能力)为烟篦烟夹烟筐,且与总酚含量和绿原酸含量之间存在一定的正相关性。结论]从烟叶品质和抗氧化能力考虑,3种装烟方式中,烟篦装烟是比较好的选择。

Effect of Different Loading Methods on the Color,Phenolic Compounds and Antioxidant Properties of Cured Tobacco Leaves

Objective ] To investigate the effects of different loading methods on tobacco leaf quality. Method ] Using loose leaves, smoke clamp and smoke basket-holding, color, phenolic compounds and their antioxidant capacity of flue-cured tobacco leaves were studied. Re- sult] The results showed that L＊ , a ＊ and b ＊ value of tobacco leaves by smoke clamp and basket-holding loading methods were higher than those of loose leaves loading method, and no significant differences were found for a ＊ and b ＊ value, while for L＊ and h value, distinct differ- ences were existed among three loading methods. Total phenolic content and chlorogenic acid content of tobacco leaves by basket-holding load- ing were much higher followed by smoke clamp and loose leaves （ P 〈 0.05 ） , however, rutin content was less distinct different. The order of the antioxidant properties, such as DPPH free radical scavenging activity and reducing powder, of tobacco leaves treatment by different three loading methods was smoke basket-holding 〉 smoke clamp 〉 loose leaves, and a positive relationship was found between anfioxiang property and total phenolic content and chlorogenic acid content. Conclusion ] In view of tobacco leaves quality and antioxidant pi＇operty, loading method of smoke basket-holding would be the better choice.