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Study on Loading Leaves Density with Cage Clamp on Quality of Cured Tobaccos in Bulk-Curing Barn
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作者 王能如 余金恒 +2 位作者 罗荣欣 林北森 尹永强 《Agricultural Science & Technology》 CAS 2014年第8期1317-1321,共5页
In order to determine the best loading density of tobacco leaf with cage clamp in bulk-curing barns, a curing test was conducted on middle-part tobacco leaves. The results showed that for good appearance quality of cu... In order to determine the best loading density of tobacco leaf with cage clamp in bulk-curing barns, a curing test was conducted on middle-part tobacco leaves. The results showed that for good appearance quality of cured tobacco, the loading density at 59.52 kg/m2 (4 000 kg/barn) was the best, fol owed by 66.96 kg/m2 (4 500 kg/barn) and 74.40 kg/m2 (5 000 kg/barn). As leaf loading density increased, the contents of leaf nicotine and total nitrogen increased, sugar content had smal changes, the ratio of sugar to nicotine decreased and tended to be balanced and the content of neutral aroma substances was decreasing, but the difference among treatments was not significant. With the increase of loading density, the sensory quality of cured leaf was better. When leaf loading density was 66.96 kg/m2 (4 500 kg/barn), apperance quality of cured leaf improved considerably, with prominent aro-ma. Therefore, the best loading density of tobacco leaf in cage clamp of bulk-curing barn would be 66.96 kg/m2 (4 500 kg/barn) . 展开更多
关键词 Flue-cured tobacco bulk curing Tobacco quality Cage clamp Loadingleaves density
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The Mechanism of Carotenoid Degradation in Flue-Cured Tobacco and Changes in the Related Enzyme Activities at the Leaf-Drying Stage During the Bulk Curing Process 被引量:6
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作者 SONG Zhao-peng LI Tong-shuai +3 位作者 ZHANG Yong-gang CAO Hui-jing GONG Chang-rong ZHANG Wei-jian 《Agricultural Sciences in China》 CSCD 2010年第9期1381-1388,共8页
The mechanism of carotenoid degradation and the changes in the activities of related enzymes in flue-cured tobacco at the leaf-drying stage during the bulk-curing process were studied in order to provide theoretical b... The mechanism of carotenoid degradation and the changes in the activities of related enzymes in flue-cured tobacco at the leaf-drying stage during the bulk-curing process were studied in order to provide theoretical basis for optimization of curing technology. The effect of different rising speeds of temperature on the carotenoid degradation and the related enzymes activities at the color-fixing stage during the bulk curing process was studied by using the electric-heated fluecuring barn designed by Henan Agricultural University, China, based on curing technology with yellowing at low temperature and moderate humidity and leaf drying at moderate humidity. The results showed that the carotenoid degradation components (β-carotene, lutein, neoxanthin, and violaxthin) decreased gradually at the color-fixing stage during the bulk curing process. The carotenoid degradation components viz.,β-carotene, lutein, neoxanthin, and violaxthin at the slow heating curing (T1) were relatively higher than the rapid heating curing (T2) accounting for 10, 2, 32 and 32% respectively, but there were no differences among treatments (P〉 0.05). The effect of different conditions of curing on the activities of enzymes related to carotenoids degradation were significant. The lipoxygenase, phenylalanine ammonialyase, peroxidase, and polyphenol oxidase enzymes had a bidirectional effect on the quality of tobacco leaves and it was beneficial to form more premise matter of aroma based on the higher enzyme activities at the early leaf-drying stage. The slow heating could regulate the change in various enzymes' activities reasonably, making cell redox reaction to reach the dynamic balance and make the degradation of carotenoids adequately. Meanwhile, it could avoid the occurrence of browning reaction and provide foundation for improving the quality of tobacco and optimization of technology for bulk curing and further enhancing aroma. 展开更多
关键词 bulk curing leaf-drying stage carotenoids mechanism of degradation enzyme
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Effects of Different Flue-curing Barns on Aroma Quality of Upper Flue-cured Tobacco Leaves of K326 被引量:2
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作者 詹军 周芳芳 +4 位作者 徐成龙 张晓龙 王柱石 陈初 朱海滨 《Agricultural Science & Technology》 CAS 2014年第11期2014-2019,共6页
[Objective] This study was conducted to compare the aroma quality of up-per leaves of K326 flue-cured in different barns, and provide theoretical references for the development and optimization of bulk curing barn and... [Objective] This study was conducted to compare the aroma quality of up-per leaves of K326 flue-cured in different barns, and provide theoretical references for the development and optimization of bulk curing barn and the supporting tech-niques. [Method] The upper leaves of K326 were flue-cured in a commonness barn, a four-shelf bulk curing barn and a three-shelf bulk curing barn separately, and then the contents of aroma components and taste quality indices of the finished leaves were measured and compared. [Result] The contents of total aroma components, chromoplast pigment degradation products, phenylalanine aroma components and neophytadiene showed no significant differences in the leaves flue-cured in four-shelf bulk curing barn and commonness barn, but were significantly or very significantly higher than those in the leaves flue-cured in three-shelf bulk curing barn. The con-tents of carotenoid degradation products, Mail ard reaction products, cembranes aro-ma components and total aroma components (except neophytadiene) showed no significant difference among the three treatments. The results of sensory evaluation revealed that the sensory taste of the leaves flue-cured in four-shelf bulk curing barn was the best, as the finished leaves had rich, delicate aroma, comfortable and clean aftertaste. The leaves flue-cured in commonness barn was better than those flue-cured in three-shelf bulk curing barn in aroma quality, amount and aftertaste. [Conclusion] The four-shelf bulk curing barn had a large volume for tobacco leaf processing, but a similar baking environment to the commonness barn, which is conducive to the formation and accumulation of aroma components, so the finished leaves had similar appearance and quality with those flue-cured in commonness barn. The upper flue-cured leaves in three-shelf bulk curing bran had poorer quality than those flue-cured in the other two barns. 展开更多
关键词 bulk curing barn Commonness barn Flue-cured tobacco K326 Upper leaf Aroma quality
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Study on Curing Effect and the Waste Heat Recovering Equipment Design of Flue Gas of Bulk Curing Barn 被引量:3
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作者 刘大双 徐增汉 +6 位作者 宋泽民 杨晔 马建彬 肖振杰 刘瑞峰 葛永琴 邹敏杰 《Agricultural Science & Technology》 CAS 2015年第12期2801-2804,共4页
In order to realize tobacco curing with energy saving and emission reduc- ing and lower cost, the waste heat recovering equipment was designed and built on blowing-upward type bulk curing barn. The comparative experim... In order to realize tobacco curing with energy saving and emission reduc- ing and lower cost, the waste heat recovering equipment was designed and built on blowing-upward type bulk curing barn. The comparative experiment of tobacco leaf curing was conducted between a bulk curing barn with waste heat of flue gas and conventional bulk curing barn. The results showed that the effect of saving coal in bulk curing barn with waste heat of flue gas was obvious than the contrast. The coal consumption quantity was 1.531 kg per kg of dry tobacco leaf. The saving coal in bulk curing barn with use waste heat of flue gas was 0.181 kg per kg of dry tobacco leaf than the contrast and saving coal rate was 10.57%. The electricity consumption quantity was 0.593 kWh per kg of dry tobacco leaf. The saving elec- tricity quantity in bulk curing barn with use waste heat of flue gas was 0.022 kWh/kg and the saving electricity rate was 3.58% than the contrast. The saving curing cost was 0.158 yuan per kg of dry tobacco leaf and saving cost rate 9.09% in bulk cur- ing barn with use waste heat of flue gas than the contrast. The appearance quality, grade structure and primary chemical composition had no significant difference be- tween bulk curing barn with use waste heat of flue gas and the contrast. 展开更多
关键词 bulk curing barn Waste heat recovering equipment of flue gas Tobacco leaf Cudng effect
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Analysis of Sulfur Dioxide Concentration Around Bulk Curing Barn Group
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作者 张远盖 蒋胜 +7 位作者 夏春 彭勇 雷晓 张明金 赵锦超 吴磊 陈亮 顾勇 《Agricultural Science & Technology》 CAS 2017年第7期1291-1294,1300,共5页
This study was conducted to analyze the spatial distribution of SO2 mass concentration around baking barn groups. A bulk curing barn group was selected as monitoring object, and SO2 concentration around it was monitor... This study was conducted to analyze the spatial distribution of SO2 mass concentration around baking barn groups. A bulk curing barn group was selected as monitoring object, and SO2 concentration around it was monitored for 2 years. The results showed that the SO2 mass concentration within 30-130 m from the baking barn group exceeded the standard, and with the ground as reference, the SO2 mass concentration at the position 0.9-2.1 m from the ground exceeded the stan- dard. According to the limit value of the SO2 mass concentration for sensitive crops, the SO2 mass concentrations over the standard were concentrated within the range of 200-300 m. On the basis of establishment of "sulfur control", "sulfur reduction" and "sulfur avoiding" system, the SO2 emission status of baking barn groups could be improved from the conversion of heat supply method, the utilization of clean en- ergy and adjustment of crop sensitive period and sensitive area. 展开更多
关键词 bulk curing barn Sulfur Dioxide CONCENTRATION CROPS
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Doing a Good Job in Inspection and Maintenance of Facilities and Equipments in Bulk Curing Barn
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作者 Yonghua CHEN Hongquan SUN +3 位作者 Pengzhen LONG Guoquan LIU Taiwei LIU Pengyu LU 《Plant Diseases and Pests》 CAS 2022年第3期35-37,共3页
Due to the limited management funds and insufficient management efforts,curing barns in traditional tobacco area are outdated and equipments are seriously damaged,which affects the normal operation and increases the m... Due to the limited management funds and insufficient management efforts,curing barns in traditional tobacco area are outdated and equipments are seriously damaged,which affects the normal operation and increases the maintenance cost of bulk curing barns,bringing adverse effects on tobacco leaf curing in the coming year and the sustainable development of tobacco industry in the future.To ensure the normal operation of curing barns and effectively prolong the service life of curing barns during tobacco leaf curing,we should do a good job in the publicity of management and maintenance,improve the system of management and maintenance,raise funds for management and maintenance,inspect facilities and equipments,carefully maintain equipments in curing barn and strictly perform examination and inspection. 展开更多
关键词 bulk curing barn Facilities and equipments INSPECTION Maintenance
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箱式烘烤对烤后烟叶品质的影响 被引量:1
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作者 王玉华 杜传印 +5 位作者 王先伟 张成双 孔芳芳 别瑞 邱军 曹建敏 《安徽农业科学》 CAS 2024年第1期172-177,共6页
[目的]深入探讨箱式烘烤方式下烤烟综合品质特征,加快箱式烘烤技术在烤烟生产中的推广应用。[方法]以潍坊烟区NC55烟叶为试验材料,开展了箱式烘烤与传统挂竿烘烤对比试验,从外观质量、物理特性、常规成分、感官质量和化学成分多个维度... [目的]深入探讨箱式烘烤方式下烤烟综合品质特征,加快箱式烘烤技术在烤烟生产中的推广应用。[方法]以潍坊烟区NC55烟叶为试验材料,开展了箱式烘烤与传统挂竿烘烤对比试验,从外观质量、物理特性、常规成分、感官质量和化学成分多个维度系统分析了箱式烘烤下烟叶品质特性。[结果]与挂竿烘烤相比,箱式烘烤烟叶外观质量、物理特性和感官质量接近或高于挂竿烘烤;箱式烘烤中部烟叶总糖、还原糖、淀粉、糖碱比显著高于挂竿烘烤,总氮和氮碱比显著低于挂竿烘烤,上部烟叶中仅淀粉箱式烘烤显著高于挂杆烘烤;箱式烘烤糖醇类香气前体物含量显著高于挂竿烘烤,中部烟叶大部分香气前体物和香气物质含量箱式烘烤低于挂竿烘烤,上部烟叶中差异相对较小。[结论]箱式烘烤2个部位烟叶品质大都较挂竿烘烤有不同程度的提升,可在实际生产中推广应用。 展开更多
关键词 箱式烘烤 挂竿烘烤 烟叶品质
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改良热泵密集烤房烘烤工艺及其效果分析
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作者 张纪利 戴林建 +7 位作者 邓泳 孙成林 金亚波 贾海江 穰中文 卓丛莹 管金江 韦建玉 《作物研究》 2024年第1期38-43,共6页
为进一步利用热泵密集烤房优势,解决热泵密集烤房与现有工艺不匹配、初烤烟叶化学成分提升不明显等问题,对传统三段式烘烤工艺进行改良,对初烤烟叶的主要化学成分、石油醚提取物、多酚类物质、香气代谢产物及评吸质量进行分析。结果表明... 为进一步利用热泵密集烤房优势,解决热泵密集烤房与现有工艺不匹配、初烤烟叶化学成分提升不明显等问题,对传统三段式烘烤工艺进行改良,对初烤烟叶的主要化学成分、石油醚提取物、多酚类物质、香气代谢产物及评吸质量进行分析。结果表明:与传统三段式烘烤工艺相比,可变频密集烤房采用改良三段式烘烤工艺后效果较好,其初烤烟叶化学成分赋值提高8.9%,淀粉含量下降20.0%,中性致香物质含量提高0.7%,多酚类物质含量提高49.4%,评吸得分提高6.2%。说明改良三段式烘烤工艺可促进烟叶香气代谢产物的积累和化学质量、评吸质量的提高。综合分析,改良后的三段式烘烤工艺能够有效提升热泵密集烤房初烤烟叶质量,有较好的实用价值。 展开更多
关键词 烟叶 热泵密集烤房 烘烤工艺 质量
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变容积密集烤房的CFD分析与试验研究
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作者 叶大鹏 沈碧河 +2 位作者 张炳辉 黄俊炜 谢立敏 《中国农机化学报》 北大核心 2024年第3期90-95,125,共7页
为保障密集烤房装烟密度,降低烘烤的能源消耗,研发一套适用于密集烤房的变容积系统。在完成变容积装置的设计后,基于CFD方法模拟分析装置与烟叶的不同距离对烤房内部气体分布均匀性的影响。通过烘烤试验获取实际烘烤数据,对模拟值加以... 为保障密集烤房装烟密度,降低烘烤的能源消耗,研发一套适用于密集烤房的变容积系统。在完成变容积装置的设计后,基于CFD方法模拟分析装置与烟叶的不同距离对烤房内部气体分布均匀性的影响。通过烘烤试验获取实际烘烤数据,对模拟值加以验证。试验结果表明:当隔板与烟叶距离为0 cm时,流速不均匀系数Kv为0.40,温度不均匀系数Kt为0.41,距离为10 cm时,Kv=0.41,Kt=0.43;距离为20 cm时,Kv=0.42,Kt=0.49。装烟区9个测量点的温度模拟值与实测值基本吻合,误差在6%以内。变容积烤房在装烟量为一半时,相比常规烤房的燃料消耗可节约13.4%。研究结果表明:当隔板与烟叶距离为0 cm时烤房内部的气体分布最均匀;CFD模型与数值模拟结果具有可靠性;变容积装置具有较好的保温效果,可保证装烟密度,降低烤烟能耗。 展开更多
关键词 密集烤房 变容积 CFD方法 数值模拟
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不同新能源类型密集烤房烘烤效果研究 被引量:1
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作者 张宜冰 李向阳 +5 位作者 白涛 张豹林 严国涌 毕浩洋 王鹏飞 王亚飞 《现代农业科技》 2024年第3期132-135,140,共5页
通过烘烤试验对比,从烤房建造成本、运行参数、烘烤能耗用工、控温精度、烤后烟叶外观质量、化学成分、经济效益等方面探索内置式生物质烤房、密闭式热泵烤房、光伏一体化烤房的烘烤效果,旨在筛选曲靖烟区最适宜的烤房类型,并为烟草行... 通过烘烤试验对比,从烤房建造成本、运行参数、烘烤能耗用工、控温精度、烤后烟叶外观质量、化学成分、经济效益等方面探索内置式生物质烤房、密闭式热泵烤房、光伏一体化烤房的烘烤效果,旨在筛选曲靖烟区最适宜的烤房类型,并为烟草行业的绿色可持续发展提供理论依据。结果表明,密闭式热泵烤房烘烤能耗和用工成本较低,控温精度、烤后烟叶质量、经济效益较好,是目前最适宜曲靖烟区的烤房类型;光伏一体化烤房建造成本高昂,且烘烤效果表现一般,目前推广难度较大,但可作为未来烤房的发展方向;内置式生物质烤房建设使用门槛较低,可在生物质颗粒供方市场成熟和电力配套设施不齐全的烟区加以应用。 展开更多
关键词 新能源 密集烤房 烘烤效果 能耗 用工成本
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密集烤房排湿余热回收系统性能研究
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作者 赵洪超 姜永雷 +6 位作者 杨睿 陈颐 夏雨萍 杨智梅 王鑫宇 苏家恩 王德俊 《能源工程》 2024年第3期30-35,共6页
针对密集烤房开式排湿造成的能源浪费问题,设计了一种利用重力热管的排湿余热回收系统。通过烘烤试验研究,得到了排湿气流的状态参数和燃料消耗量。结果表明,密集烤房排湿余热回收系统的平均显热效率为36.61%,平均全热效率为15.97%;与... 针对密集烤房开式排湿造成的能源浪费问题,设计了一种利用重力热管的排湿余热回收系统。通过烘烤试验研究,得到了排湿气流的状态参数和燃料消耗量。结果表明,密集烤房排湿余热回收系统的平均显热效率为36.61%,平均全热效率为15.97%;与对照烤房相比,每公斤干烟可节约燃料0.22kg,节能率达到9.11%,该系统具有良好的工程应用价值。 展开更多
关键词 密集烤房 余热回收 换热性能 节能
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碳基有机肥对烤烟生长及产质量的影响
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作者 王浮波 周竹青 +7 位作者 于龙飞 陈剑 彭涛 李想 鲁平 廖小琳 赵培炎 何昊天 《现代农业科技》 2024年第6期30-32,36,共4页
本研究以烤烟品种云烟87为试验对象,设置不同碳基有机肥施用量,研究其对烤烟生长及产质量的影响。结果表明:施用碳基有机肥可以提高烟叶产量,改善农艺性状及品质,烤后烟叶均符合优质烟叶指标要求;与常规施肥对照相比,烟叶总产量提升52.3... 本研究以烤烟品种云烟87为试验对象,设置不同碳基有机肥施用量,研究其对烤烟生长及产质量的影响。结果表明:施用碳基有机肥可以提高烟叶产量,改善农艺性状及品质,烤后烟叶均符合优质烟叶指标要求;与常规施肥对照相比,烟叶总产量提升52.3%~96.6%,优质烟叶产量提升44.5%~54.0%,中等质量烟叶产量提升68.7%~144.0%。综合来看,以施用碳基有机肥1500 kg/hm^(2)对烤烟生长及产质量的提升效果最好。 展开更多
关键词 烤烟 碳基有机肥 土壤容重 农艺性状 产量
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不同成熟度烟叶烘烤中颜色值和色素含量的变化 被引量:74
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作者 霍开玲 宋朝鹏 +3 位作者 武圣江 刘闯 贺帆 宫长荣 《中国农业科学》 CAS CSCD 北大核心 2011年第10期2013-2021,共9页
【目的】了解不同成熟度烟叶密集烘烤中颜色值和色素含量的变化以及它们之间的关系,为密集烘烤工艺的优化和完善提供理论依据。【方法】采用全自动测色色差计,对比研究烘烤中未熟、尚熟、适熟和过熟烟叶颜色参数(L*、a*、b*)和色差参数(... 【目的】了解不同成熟度烟叶密集烘烤中颜色值和色素含量的变化以及它们之间的关系,为密集烘烤工艺的优化和完善提供理论依据。【方法】采用全自动测色色差计,对比研究烘烤中未熟、尚熟、适熟和过熟烟叶颜色参数(L*、a*、b*)和色差参数(△L*、△a*、△b*)的变化特征,采用分光光度法测定不同成熟度烟叶叶绿素、类胡萝卜素含量等指标。【结果】不同成熟度烟叶的L*、a*值在烘烤过程中均呈现升高的趋势,b*值在48℃之前升高,48—54℃有所下降,之后稍有回升。L*的变化规律表现为过熟>适熟>尚熟>未熟,鲜烟叶a*值在不同成熟度之间差别不大,在变黄中期之前成熟度高的烟叶a*值上升较快,烤后烟叶b*值大小表现为尚熟>未熟>过熟>适熟。随着烘烤的进行,烟叶△L*总体趋势变小。在48℃烟叶△a*明显变大,△b*相对降低,尤其以未熟和过熟烟叶明显。相关分析表明,尚熟和适熟烟叶的类胡萝卜素含量与L*值均呈极显著负相关(r=-0.979,-0.851,P<0.01),类胡萝卜素含量与a*值呈显著负相关(r=-0.832,-0.853,P<0.05)。烘烤过程中适熟烟叶的L*、a*和b*与各种色素含量的回归方程分别为y1=245.67 x1+114.75 x2-211.69 x3-125.21 x4+118.69,y2=416.9 x1+369.19 x2-404.38 x3-78.38 x4+43.55,y3=-1051.55 x1-1270.02 x2+1106.42 x3+17.48 x4+40.1。【结论】烘烤中不同成熟度烟叶正反面颜色变化趋势基本同步,烟叶颜色参数和色素含量的相关性明显,可以用颜色值作为辅助指标来判断烟叶成熟度。 展开更多
关键词 烤烟 密集烘烤 成熟度 颜色 色素
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密集烘烤过程中烟叶水分和色素含量的动态变化 被引量:45
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作者 孟可爱 聂荣邦 +1 位作者 肖春生 唐春闺 《湖南农业大学学报(自然科学版)》 CAS CSCD 北大核心 2006年第2期144-148,共5页
为了掌握密集烘烤中烟叶色素和水分变化规律,提高烟叶烘烤质量,研究了密集烘烤过程中烟叶水分和色素含量的动态变化.结果表明,不同密集烘烤方式(散叶密集和挂竿密集)、不同部位烟叶、同一片烟叶不同部位的叶绿素a,叶绿素b的降解都呈现... 为了掌握密集烘烤中烟叶色素和水分变化规律,提高烟叶烘烤质量,研究了密集烘烤过程中烟叶水分和色素含量的动态变化.结果表明,不同密集烘烤方式(散叶密集和挂竿密集)、不同部位烟叶、同一片烟叶不同部位的叶绿素a,叶绿素b的降解都呈现前期下降快而后期趋于稳定的趋势,类胡萝卜素变化都表现出不稳定的状况;挂竿密集烘烤烟叶的含水率比散叶下降快,且下降的规律性更强,呈现先缓慢下降,然后急剧下降,随后又缓慢下降的规律.叶尖、叶中和叶基含水率变化趋势基本一致. 展开更多
关键词 密集烘烤 散叶密集烘烤 挂竿密集烘烤 水分 色素
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不同湿度条件下不同成熟度烤烟散叶密集烘烤生理变化研究 被引量:39
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作者 武圣江 谢已书 +3 位作者 潘文杰 韦克苏 张茂才 李国彬 《云南农业大学学报(自然科学版)》 CAS CSCD 北大核心 2012年第5期733-739,共7页
为了进一步优化散叶烘烤工艺和提高散叶烘烤质量,以试验专用密集电烤房为设备,研究了湿度(低湿、中湿、高湿)和成熟度(尚熟、成熟、完熟)及其互作对散叶烘烤中烤烟下部烟叶生理指标变化的影响。结果表明,湿度和成熟度分别在48 h及其后... 为了进一步优化散叶烘烤工艺和提高散叶烘烤质量,以试验专用密集电烤房为设备,研究了湿度(低湿、中湿、高湿)和成熟度(尚熟、成熟、完熟)及其互作对散叶烘烤中烤烟下部烟叶生理指标变化的影响。结果表明,湿度和成熟度分别在48 h及其后、24~48 h对不同处理水分含量产生显著的影响(P<0.05);低湿和高湿条件下过氧化物酶(POD)和超氧化物歧化酶(SOD)活性的表达不利于烤烟烘烤质量的形成,各处理96 h色素含量较高,中湿能使氧化还原酶活性保持一种动态平衡,有利于叶绿素、类胡萝卜素的充分降解和转化,各处理96 h色素含量较低;鲜烟叶和96 h尚熟处理烟叶色素含量较高,成熟和完熟处理含量较低。湿度和成熟度对烘烤中烟叶生理变化影响显著(P<0.05),而成熟度还影响田间烟叶内含物(色素)量的积累。从色素等生理指标变化看,在成熟至完熟期间采收烘烤较佳。成熟度是烟叶质量的核心,成熟度因素是烘烤工艺措施(调控湿度)无法弥补的。在不同处理中,中湿成熟和中湿完熟处理更有利于促进散叶烘烤中烟叶生理变化和香气前提物质的转化积累。 展开更多
关键词 烤烟 散叶 密集烘烤 成熟度 湿度 生理
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密集式烘烤条件下不同变黄温湿度对烤后烟叶致香物质的影响 被引量:63
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作者 代丽 黄永成 +2 位作者 宫长荣 余金恒 杨少杰 《华北农学报》 CSCD 北大核心 2008年第6期148-152,共5页
采用河南农业大学设计的电热式温湿自控密集烤烟箱,研究了不同变黄温湿度对烟叶致香物质的影响。结果表明,在低温中湿变黄条件(干球温度38℃,相对湿度85%~80%)下,对烟叶香气有重要贡献的草酸、苹果酸、硬脂酸等酸性致香物质,... 采用河南农业大学设计的电热式温湿自控密集烤烟箱,研究了不同变黄温湿度对烟叶致香物质的影响。结果表明,在低温中湿变黄条件(干球温度38℃,相对湿度85%~80%)下,对烟叶香气有重要贡献的草酸、苹果酸、硬脂酸等酸性致香物质,以及一些中性致香物质如苯甲醇、苯乙醛、苯乙醇、糠醛、糠醇和2-乙酰基吡咯、β-大马酮、香叶基丙酮、二氢猕猴桃内酯、巨豆三烯酮Ⅱ、巨豆三烯酮Ⅳ、3-氢基-β-二氢大马酮、茄酮等均有不同程度的提高。 展开更多
关键词 烤烟 密集烘烤 温湿度 致香物质
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密集烘烤不同变黄温湿条件对烟叶中性致香物质的影响 被引量:62
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作者 高玉珍 王卫峰 +4 位作者 张骏 王运锋 景延秋 魏跃伟 宫长荣 《云南农业大学学报》 CAS CSCD 2008年第2期215-219,共5页
采用河南农业大学设计的电热式温湿自控密集烤烟箱,研究了不同变黄温湿条件对烟叶致香物质的影响。结果表明,低温中湿变黄处理(干球温度38℃,相对湿度85%~80%)能提高烟叶中性致香物质的含量。苯丙氨酸类、美拉德反应产物类、类... 采用河南农业大学设计的电热式温湿自控密集烤烟箱,研究了不同变黄温湿条件对烟叶致香物质的影响。结果表明,低温中湿变黄处理(干球温度38℃,相对湿度85%~80%)能提高烟叶中性致香物质的含量。苯丙氨酸类、美拉德反应产物类、类胡萝卜类、新植二烯以低温中湿变黄处理最优,中性致香物质的总量也得到提高,其中对烟叶香味品质有重要作用的苯甲醇、苯乙醛、苯乙醇、糠醛、糠醇和2-乙酰基吡咯、β-大马酮、香叶基丙酮、二氢猕猴桃内酯、巨豆三烯酮Ⅱ、巨豆三烯酮Ⅳ、3-氢基-β-二氢大马酮、茄酮的含量均有不同程度的提高。可见低温中湿变黄处理能提高烟叶中性致香物质的含量,有利于改善烟叶的内在品质。 展开更多
关键词 烤烟 密集烘烤 温湿度 致香物质
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密集烘烤过程中烟叶生理指标和物理特性及细胞超微结构变化 被引量:44
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作者 武圣江 宋朝鹏 +2 位作者 贺帆 孙建峰 宫长荣 《中国农业科学》 CAS CSCD 北大核心 2011年第1期125-132,共8页
【目的】探讨密集烘烤过程中烟叶某些生理指标和物理特性及细胞超微结构变化,为烘烤工艺的优化和完善提供理论依据。【方法】采用河南农业大学设计的电热式温湿自控密集烤烟箱,研究烟叶烘烤过程中关键温度点(鲜样、38℃、42℃、48℃、5... 【目的】探讨密集烘烤过程中烟叶某些生理指标和物理特性及细胞超微结构变化,为烘烤工艺的优化和完善提供理论依据。【方法】采用河南农业大学设计的电热式温湿自控密集烤烟箱,研究烟叶烘烤过程中关键温度点(鲜样、38℃、42℃、48℃、54℃、干样)细胞超微结构、生理指标及物理特性的变化规律。【结果】烟叶淀粉、叶绿素和类胡萝卜素含量的变化主要在变黄前期;烟叶水分含量、厚度、密度的变化主要在变黄期和定色期;果胶和纤维素含量的变化主要在定色期,烘烤过程中叶质重的变化相对较小。细胞超微结构观察表明,细胞壁、叶绿体和细胞核在烘烤过程中的变化明显,但线粒体不易观察到;38℃染色质减少,核膜部分消失;42℃细胞出现质壁分离现象,叶绿体等细胞器游离到细胞中央,叶绿体外膜、核膜破裂,嗜锇颗粒多数呈现半空状态,基粒片层和大部分淀粉粒消失;48℃细胞壁扭曲变形,细胞核固缩;54℃后叶绿体个体形状已不易区分,所存物质基本是电子密度较弱的嗜锇物质。【结论】烘烤过程中烟叶细胞超微结构变化与烟叶物理特性、生理生化反应、内含物降解转化的程度密切相关。 展开更多
关键词 烤烟 密集烘烤 生理指标 物理特性 超微结构
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不同烘烤方式烘烤过程中烟叶表面烷烃类物质变化的研究 被引量:13
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作者 潘文杰 谢已书 +5 位作者 李章海 赵会纳 朱晓兰 高芸 杨俊 朱显灵 《安徽农业大学学报》 CAS CSCD 北大核心 2011年第3期469-473,共5页
研究了不同烘烤方式对烘烤过程中烟叶表面烷烃类物质含量变化与损失的影响。结果表明,采用挂竿密集烤房烤后烟叶烷烃类物质总量损失最多,比烘烤前减少58.9%,损失主要发生在变黄期和干筋期;筐装密集烤房烤后烟叶烷烃类物质总量损... 研究了不同烘烤方式对烘烤过程中烟叶表面烷烃类物质含量变化与损失的影响。结果表明,采用挂竿密集烤房烤后烟叶烷烃类物质总量损失最多,比烘烤前减少58.9%,损失主要发生在变黄期和干筋期;筐装密集烤房烤后烟叶烷烃类物质总量损失最少,仅比烘烤前减少13.8%,损失主要发生在干叶期(烤后72~96h);散叶密集烤房和传统普通烤房烤后烟叶烷烃类物质总量损失居中,分别比烘烤前减少35.8%和32.3%,损失也主要发生在干筋期。因此,筐装密集烤房是解决目前挂竿密集烤房烟叶香气量损失较大的有效措施之一。 展开更多
关键词 烤烟 烘烤 密集烤房 普通烤房 烷烃类物质
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密集烘烤过程中基于色度学和形态学的烤烟外观变化与化学成分关系 被引量:33
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作者 王涛 贺帆 +5 位作者 詹军 李伟 赵华武 裴晓东 龙大彬 宫长荣 《华中农业大学学报》 CAS CSCD 北大核心 2012年第6期765-770,共6页
以烤烟中部叶为试验材料,对密集烘烤过程中烤烟颜色参数(L*、a*、b*)、形态特征变化及其与主要化学成分的关系进行了研究。结果表明:密集烘烤过程中烤烟叶片正面与背面各颜色指标变化趋势基本一致,且烘烤前期变化较大,烘烤后期变化幅度... 以烤烟中部叶为试验材料,对密集烘烤过程中烤烟颜色参数(L*、a*、b*)、形态特征变化及其与主要化学成分的关系进行了研究。结果表明:密集烘烤过程中烤烟叶片正面与背面各颜色指标变化趋势基本一致,且烘烤前期变化较大,烘烤后期变化幅度较小,同时正面变化速度较背面快。烘烤开始时烟叶厚度收缩率一直呈现较大变化,进入干筋期变化趋势减缓;其余各形态指标前期变化幅度较小,中期相对剧烈,后期又逐渐减缓。相关分析表明,烟叶正面和背面L*、a*、b*与烟叶形态和主要化学成分大部分达到显著或极显著水平。回归分析表明,烤烟烟叶颜色参数与其形态和化学成分各指标的回归方程表现出较好的拟合度。烘烤过程中烟叶颜色参数的变化可以用来定量预测形态和主要化学成分的变化。 展开更多
关键词 烤烟 密集烘烤 色度学 形态学 化学成分 形态特征
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