Optimization and Effects of M icrow ave Expansion on Chemical Components and Physical Structure of Tobacco Stem
GAO Rui
HUANG Zhi-qiang
WANG Song-feng
LI Xian
BAO Xiu-ping
YANG Yong-jun
Abstract：In order to investigate the effect of microwave expansion on smoking quality of tobacco stems ,the optimum microwave expansion conditions were determined by exploring the relation-ships between the water content of tobacco stems ,microwave expansion time ,microwave expan-sion power and expansion rate of tobacco stems .And differences of chemical components ,physical structure and smoking quality between the untreated and treated tobacco stems were further stu-died .Results showed the optimum conditions for tobacco stem expansion were as follows :micro-wave expansion time was 45 s ,moisture content of tobacco stems was 20% and microwave power was 630 W .Compared with the untreated tobacco stems ,the treated ones had lower content of to-tal sugar but similar contents of total alkaloid ,total nitrogen ,starch and protein .Their miscella-neous gas was weaker ,and the aftertaste and comfort got better .Besides ,it was shown that the treated tobacco stems possessed more expanded and destroyed inner structure .This study there-fore suggests that microwave expansion has positive effect on smoking quality of tobacco stems .
Keywords：tobacco stemmicrowave expansionchemical constituentselectron microscope scanningphysical structuresensory evaluation
Publication Date：2013-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 50-54 )