文章基本信息

标题：HCI-CH3COOH MIXED ACID EXTRACTIONAND CHARACTERIZATION OF PECTIN FROM TOBACCO STEMS
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作者：Guoming Zeng ; Maolan Zhang ; Xiaowan Liu 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2021
卷号：30
期号：11
页码：12111-12122
语种：English
出版社：PSP Publishing
摘要：Pectin was extracted from tobacco stems using an HCl-CH3COOH mixed acid extraction method to assess as a potential tool in commercial pectin pro-duction. The effect of hot and cold pretreatments on the pectin yield was investigated first. Then, the re-sponse surface methodology was used to determine the effects of the solid-liquid ratio(1/20-1/40), ex-traction temperature(80-100 ℃C) and time(90-150 min) on the pectin yield, and the maximum extrac-tion yield appeared at 88.8℃C,128 min and a solid-liquid ratio of 1/34.Lastly, the pectins obtained from the mixed acid and single acid treatments were ana-lyzed and compared by yield, structure and physico-chemical properties. According to the results, it can be concluded that the mixed HCl-CH;COOH acid could combine the yield and esterification degree of strong inorganic acid and organic acid and yield pec-tin products with ideal physicochemical properties.
关键词：Tobacco stems;Pectin;mixed acid;response surface meth-odology;physicochemical properties