期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
棉油皂脚提油法
1
作者 宋永泉 《中国棉花加工》 1990年第6期28-28,共1页
关键词 棉籽 皂脚 中性油提取 利用
下载PDF
Effects of Different Irrigation Modes on Internal Quality of Flue-cured Tobacco Leaves
2
作者 张晓龙 常寿荣 +4 位作者 朱海滨 郑武 吕凯 符秀华 敖金成 《Agricultural Science & Technology》 CAS 2013年第9期1352-1357,共6页
[Objective] This study aimed to investigate the effects of different irrigation modes on chemical constituent and aroma substance contents and sensory quality in flue-cured tobacco leaves. [Method] Field experiments w... [Objective] This study aimed to investigate the effects of different irrigation modes on chemical constituent and aroma substance contents and sensory quality in flue-cured tobacco leaves. [Method] Field experiments were conduced with two treatments, including watering irrigation and micro-spraying irrigation. In watering irrigation treatment, flue-cured tobacco seedlings were respectively watered by artificial root irrigation once at rosette stage(May 26) and vigorous growth stage(June 18), 1kg/plant each time; in micro-spraying treatment, flue-cured tobacco seedlings were watered by artificial root irrigation once at rosette stage(May 26), 1 L/plant. [Result]Compared to watering irrigation mode, micro-spraying irrigation could extremely significantly increase the content of main aromatic substance in middle and upper leaves.Contents of main aromatic substance non-volatile organic acids, volatile organic acids, petroleum ether extracts, neophytadiene and neutral aromatic substances in C3F tobacco leaves were improved by 24.4%, 32.6%, 20.7%, 33.8% and 26.3%, respectively; contents of main aromatic substance non-volatile organic acids, volatile organic acids, petroleum ether extracts, eophytadiene and neutral aromatic substances in B2F tobacco leaves were improved by 16.3%, 6.0%, 6.1%, 10.8% and8.1%, respectively. In addition, micro-spraying irrigation could extremely significantly reduce the nicotine content in middle and upper leaves and improve the aromatic coordination, mellow taste and smoldering property. [Conclusion] In flue-cured tobacco production, micro-spraying technology is an important means to improve the internal quality of flue-cured tobacco leaves, which can be adopted to effectively solve the problem of declining quality of flue-cured tobacco leaves resulted from the dry climate at maturation stage in seasonal frequent-drought areas. 展开更多
关键词 Micro-spraying irrigation Volatile organic acid Non-volatile organic acid Petroleum ether extract Neutral aromatic substance Industrial availability
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部