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利用热像与生理实验法研究种子的优化传热传质 被引量:4
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作者 诸凯 褚治德 +4 位作者 刘靖 杨俊红 朱强 张宇 吴树明 《工程热物理学报》 EI CAS CSCD 北大核心 1998年第4期469-474,共6页
本文运用工程热物理和种子生理学科交叉的研究方法,在辐射振动流化干燥装置中,对白菜种子的动、静态干燥进行了热象测试分析,并且同步进行了种子的生理实验研究.结果表明种子的临界干燥温度是干燥时间和含水率的函数,当含水率较低... 本文运用工程热物理和种子生理学科交叉的研究方法,在辐射振动流化干燥装置中,对白菜种子的动、静态干燥进行了热象测试分析,并且同步进行了种子的生理实验研究.结果表明种子的临界干燥温度是干燥时间和含水率的函数,当含水率较低及干燥周期较短时,种子的临界干燥温度可以提高,为种子的优化传热传质提供了理论依据. 展开更多
关键词 种子 生理实验 热像 优化传热传质 临界干燥温度
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MICROSTRUCTURE AND AMYLASE ACTIVITY OF CHINESE CABBAGE SEED DURING DRYING PROCESS
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作者 杨俊红 焦士龙 +2 位作者 褚治德 吴树民 侯丕勇 《Transactions of Tianjin University》 EI CAS 2001年第3期153-156,共4页
A seed is the carrier of life,and research on the heat and mass transfer of a seed has already stridden toward the level of microcosm,such as cell protoplasm,cell organism,and molecular membrane.By means of a transmis... A seed is the carrier of life,and research on the heat and mass transfer of a seed has already stridden toward the level of microcosm,such as cell protoplasm,cell organism,and molecular membrane.By means of a transmission electron microscope,the authors of this paper observed the microstructure of cotyledon tissue slices of the Chinese cabbage seed with a moisture content of 13% (on dry basis) and that with a moisture content of 4.3% (on dry basis) for drying 2 h at 45 ℃.The compared result was that only wrinkles had been discovered on the cell walls of the seed dried for 2 h,without any significant change for other organelles.Study on the enzyme activity shows that after a germination for 48 h,the relative activity of α amylase of the Chinese cabbage seed dried for 2 h at 45 ℃,decreased by 5.8%,whereas that of the seed dried 2 h at a temperature of 67 ℃ decreased by 30.1%.This work shows that the drying factors have greatly influence on the seed microstructure,enzyme activity,which is directly positive to seed viability.Combined with the analysis of the critical safe drying temperature of the vegetable seed,it can be concluded that enzyme activity is also the function of the drying temperature,the moisture content and the drying time. 展开更多
关键词 seed microstructure amylase activity critical drying temperature
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