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1、????/TobaccoScience&Technology????/TobaccoChemistry2014?4???321?????????????????э?1*2333????????????????1.??????????????????????????7172000822.??????????????????????????7172000823.?17????????К?????????????????100083????????3??????э???????????a?a??9???????????????????-5
2、?????a??a???a??aHp??????????????????э???b???э?????????????pH?????????①???????②????????????????③??????????Ч???э?④5-??????????????b???????Maillard????????b?????????????????э?????щ??B??????441ST?1.411ST????1002-0861?2014?04-0050-05VariationofMainChemicalComponentsinTobacc
3、oStemDuringArtificialAging1*2333SUNPing,TANGZhaoqi,WANGJun,SUNXia,andFUYingyi1.ProcurementCenterofShanghaiTobaccoGroupCo.,Ltd.,Shanghai200082,China2.TechnologyCenterofShanghaiTobaccoGroupCo.,Ltd.,Shanghai200082,China3.CollegeofFoodScience&NutritionalEngineering,ChinaAg
4、riculturalUniversity,Beijing100083,ChinaAbstract:Inordertoresearchthevariationoftobaccostemduringartificialaging,ninetobaccostemsamplesfromthreestalkpositionsandthreeareaswereartificiallyagedforoneyear.Thecontentsoftotalsugar,reducingsugar,totalnitrogen,totalalkaloid,a
5、nd5-hydroxymethylfuraldehyde(5-HMF)inandpHofthestemsamplesweredeterminedregularly.Theresultsshowedthat:1)ThepHofstemgraduallydeclinedduringaging,thoughitchangedmoreslowlyatlaterstage.2)Thecontentsofreducingsugarandtotalsugarshowedacontinuouslydecreasingtrend.3)Theconte
6、ntsoftotalnitrogenandtotalalkaloidwerebasicallyunchanged.4)Thecontentof5-HMFreducedatfirstandthenincreasedgradually.TheprocessofartificialagingeffectivelypromotedtheMaillardreactionintobaccostem.Keywords:Tobaccostem;Artificialaging;Chemicalcomponent;Ruleofvariation????
7、????????э??????????a??????????????????1???????????????????b???????????Чa?????a???????????????????????????????????????????b????????2-4??6-8?????????????b???????????????????????????????????????%30~%25?????????????????????Б??????5???????????b????????????????????????????э?
8、????Б??????????????????????????1957i????????????????????????b????????????????bE-mail?sunp@sh.tobacco.com.cn?*????????
