期刊
CARBOHYDRATE POLYMERS
卷 88, 期 2, 页码 707-712出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.01.021
关键词
Pectin; Quaternization; Moisture absorption; Moisture retention; Antimicrobial activity
资金
- National Natural Science Foundation of China [51173143, 50973088]
- Technology Innovation Foundation for SMEs of Ministry of Science of China [11C26214202642, 11C26214212743]
- Supply and Demand Docking Program of Science and Technology of Wuhan [201150124013]
- Doctor Subject Foundation of the Ministry of Education of China [200804971074]
- Wuhan Science and Technology Development [201060623262]
- Health Department of Hubei Province [JX4B54]
- Wuhan Academic Leaders Program [200851430480]
- Independent Innovation Research Foundation of Wuhan University of Technology [2010-IV-070]
Cationic derivatives of pectin were prepared by reacting pectin with 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC) in presence of sodium hydroxide (NaOH). The chemical structures of derivative were characterized by using elemental analysis, FT-IR, and C-13 NMR spectroscopy. The results revealed that the degree of substitution (DS) of quaternized pectin (QP) could be controlled by adjusting the molar ratio of CHPTAC to pectin, the molar ratio of NaOH to CHPTAC and reaction temperature occurred during quaternization. The moisture absorption (R-a) and moisture retention (R-h) abilities of QP are closely related to the DS value. With the DS value increasing, R-a and R-h increased. In vitro antimicrobial activity assessment exhibited QP showed pronounced inhibitory effect against the three bacteria (Staphylococcus aureus, Escherichia coli, and Bacillus subtilis). The improved functionalities of the derivative might be explained by its polycationic characteristics. (c) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据