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1、南方農(nóng)業(yè)學報2011。42(10):1193—1198JournalofSouthernA畫culturehttp://www.nfny】【b.coin密集烘烤中穩(wěn)溫時間對烤煙上部葉香氣質(zhì)量的影Ⅱ向詹軍1,李偉-,霍開玲-,汪代斌2,陳少鵬2,宮長榮p(1河南農(nóng)業(yè)大學煙草學院,鄭州450002;2重慶市煙草公司萬州分公司,重慶萬州404000)摘要:【目的】研究密集烘烤過中穩(wěn)溫時間對上部煙葉香氣質(zhì)量的影響,為提高煙葉香氣質(zhì)量及密集烘烤工藝的優(yōu)化與完善提供理論依據(jù)。【方法】以烤煙上部葉為試驗材料,在氣流下降式烤房對比研究42℃和54℃兩個關鍵溫度點穩(wěn)溫時間
2、對上部煙葉致香物質(zhì)和化學成分含量及感官評吸質(zhì)量的影響?!窘Y(jié)果】適當延長穩(wěn)溫時間有助于石油醚提取物含量提高;當以42。C持續(xù)12h、54。C持續(xù)12h進行烘烤時,其致香物質(zhì)總量、棕色化反應產(chǎn)物類、類西柏烷類、類胡蘿卜素類致香物質(zhì)和新植二烯含量最高,且明顯提高巨豆i烯酮總量(19.970Ixg/g);并且能夠顯著降低上部煙葉的煙堿和淀粉含量,使還原糖和總糖含量增加,糖堿比和氮堿比較適宜,其感官評吸得分最高?!窘Y(jié)論】42。C和54。C均持續(xù)12h能明顯改善一卜部煙葉化學成分的協(xié)調(diào)性,提高上部煙葉的香氣質(zhì)量和可用性。關鍵詞:烤煙;密集烘烤;穩(wěn)溫時間;上部煙葉;香
3、氣質(zhì)量中圖分類號:$572.029文獻標志碼:A文章編號:2095—1191(2011)10一1193-06Effectofstabilizedtemperaturedurationonthearomaqualityofupperflue-curedtobaccoleavesduringbulkcuringprocessZHANJunl,LIWeil,HUOKai—ling1,WANGDai—bin2,CHENShao—pen92,GONGChang-rong1+(1CollegeofTobaccoScience,HenanAgriculturalUni
4、versity,Zhengzhou450002,China;2WanzhouBranchofChongqingTobaccoCompany,Wanzhou,Chongqing404000,China)Abstract:【Objective】Thepresentexperimentwasconductedtostudytheeffectsofstabilizedtemperaturedurationonthearomaqualityofupperflue-curedtobaccoleavesduringbulkcuringprocessinordertop
5、rovidebasisforimprovingaro-maqualityandoptimizationofcuringtechnology.【Method】Upperflue-curedtobaccoleavesanddown-draftbarnwereusedtostudytheeffectsofstabilizedtemperaturedurationatthestandardcuringtemperatures(42。Cand54。C)onaromaquality,contentsofmajorchemicalcomponents,andsenso
6、ryqualityofuppercuredtobaccoleaves.【Result】Properprolongedstabilizedtemperaturedurationwasfoundhelpfulinenhancingthequantityofpetroleumetherextractsfromupperleaves.Keepingupperleavesat42。Cfor12handat54。Cfor12hresultedinhighesttotalaromacomponents,browningreaction,cembrenoids,degr
7、adedcarotenoid,andneophytadiene.Further,itremarkablyincreasedthecontentofmegastigma.trienonesintheupperleaves.Thenicotineandstarchcontentsdecreasedremarkably,whilereducingsugarsandtotalsugarcontentsincreased.Totalratioofsugar/nicotineandtotalnitrogen/nicotinewereappropriate.Thetr
8、eatmentresultedhighestscoreforsensoryqua