









摘要通過(guò)跟蹤測(cè)定煙葉中淀粉酶、蛋白酶和纖維素酶活力,以及美拉德反應(yīng)底物、美拉德反應(yīng)中間體和典型烤甜香風(fēng)味物質(zhì)等在醇化初期的變化,探究烤甜香風(fēng)味物質(zhì)的形成規(guī)律。結(jié)果表明:煙葉中淀粉酶活力、纖維素酶活力、總還原糖和美拉德中間體總量在180d醇化期呈先升高后降低的變化規(guī)律,蛋白酶活力、游離氨基酸總量、蔗糖、葡萄糖和果糖呈逐漸降低的趨勢(shì),而糠醇、5-甲基糠醛、麥芽酚、呋喃酮、3-甲基-2-環(huán)戊烯-1-酮5種典型的烤甜香風(fēng)味物質(zhì)含量呈逐漸升高的趨勢(shì)。相關(guān)性分析發(fā)現(xiàn),游離氨基酸和葡萄糖與美拉德中間體變化均呈正相關(guān),美拉德中間體總量和烤甜香風(fēng)味物質(zhì)總量變化呈負(fù)相關(guān)。在醇化初期,煙葉中淀粉酶、纖維素酶和蛋白酶的活力對(duì)美拉德中間體的形成和烤甜香風(fēng)味物質(zhì)的增加有重要影響。
關(guān)鍵詞煙葉;醇化;烤甜香;美拉德中間體;形成規(guī)律
中圖分類(lèi)號(hào)TS41+1"文獻(xiàn)標(biāo)識(shí)碼A
文章編號(hào)0517-6611(2024)24-0158-05
doi:10.3969/j.issn.0517-6611.2024.24.035
開(kāi)放科學(xué)(資源服務(wù))標(biāo)識(shí)碼(OSID):
TheFormationRulesofFlavorSubstancewithRoastedSweetAromainLeavesDuringtheEarlyStageofAging
CHAIYing,QIAOYue-mei,GUOChun-shengetal
(TechnicalCenter,InnerMongoliaKunmingCigaretteCo.,Ltd.,Hohhot,InnerMongolia010000)
AbstractThroughtrackinganddetectingtheactivitiesofamylase,protease,andcellulase,aswellasthechangesinMaillardreactionsubstrates,Maillardreactionintermediates,andtypicalroastedsweetflavorsubstancesintobaccoleavesduringtheearlystageofaging,theformationrulesofflavorsubstanceswithroastedsweetaromawereexplored.Theresultsshow:theactivitiesofamylase,cellulase,totalreducingsugarandMaillardintermediatesintobaccoleavesincreasedfirstandthendecreasedduringthe180dagingperiod.Theactivitiesofprotease,totalfreeaminoacids,sucrose,glucoseandfructosedecreasedgradually.Thecontentsoffivetypicalflavorsubstances,suchasfurfurylalcohol,5-methylfurfural,maltol,furanoneand3-methyl-2-cyclopentene-1-ketone,increasedgradually.ThefreeaminoacidsandglucosearepositivelycorrelatedwithMaillardintermediates,whilethereisanegativecorrelationbetweenthetotalamountofMaillardintermediatesandthetotalamountofroastedsweetflavorsubstances.Sointheearlystageofaging,theactivityofamylase,cellulase,andproteaseintobaccoleaveshasasignificantimpactontheformationofMaillardintermediatesandtheincreaseofroastedsweetflavorsubstances.
KeywordsTobaccoleaves;Age;Roastedsweetaroma;Maillardintermediates;Formationrules
煙草是一種以吸食為主要目的的特殊經(jīng)濟(jì)作物,也是我國(guó)重要的農(nóng)業(yè)經(jīng)濟(jì)作物之一。煙草中主要化學(xué)成分的含量和比值影響著煙草的吸食品質(zhì),進(jìn)而決定了煙草的工業(yè)使用價(jià)值,而醇化是煙葉吸食品質(zhì)形成的重要環(huán)節(jié)[1]。醇化過(guò)程根據(jù)處理?xiàng)l件和方法不同,分為自然醇化和人工發(fā)酵2種[2]。自然醇化是將烤煙放置在醇化庫(kù)中,在自然條件下借助生化作用發(fā)生成分變化進(jìn)而改善質(zhì)量的過(guò)程,是目前煙草行業(yè)主要的生產(chǎn)工藝。……