| O-羧甲基壳聚糖的制备及对黑曲霉生长的影响 |
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| 引用本文： | 李小芳,冯小强,杨 声.O-羧甲基壳聚糖的制备及对黑曲霉生长的影响[J].食品科学,2010,31(11):77-80. |
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| 作者姓名： | 李小芳 冯小强 杨 声 |
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| 作者单位： | 天水师范学院生命科学与化学学院 |
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| 基金项目： | 甘肃天水师范学院物理无机化学重点学科基金资助项目 |
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| 摘 要： | 采用红外光谱法对合成的O-羧甲基壳聚糖(OCMC)进行表征，研究壳聚糖及OCMC对黑曲霉生长的影响。结果表明：当培养基中添加OCMC，作用第1天时，可以有效的抑制黑曲霉菌落的生长；当OCMC质量浓度为1.0mg/mL时，对黑曲霉生长的抑制能力最强；壳聚糖和OCMC能与ct-DNA发生相互作用，导致ct-DNA双螺旋结构被破坏。
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| 关 键 词： | O-羧甲基壳聚糖 黑曲霉 抑制 DNA |
| 收稿时间： | 2009-09-18 |
Synthesis of O-Carboxymethyl Chitosan and Its Effect on the Growth of Aspergillus niger |
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| LI Xiao-fang FENG Xiao-qiang YANG Sheng.Synthesis of O-Carboxymethyl Chitosan and Its Effect on the Growth of Aspergillus niger[J].Food Science,2010,31(11):77-80. |
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| Authors: | LI Xiao-fang FENG Xiao-qiang YANG Sheng |
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| Affiliation: | College of Life Science and Chemistry, Tianshui Normal University, Tianshui 741001, China |
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| Abstract: | O-carboxymethyl chitosan (OCMC) was prepared and characterized by IR spectroscopy. The effect of OCMC on the growth of Aspergillus niger was also investigated. Results indicated that an obvious inhibitory effect of OCMC on the growth of Aspergillus niger was observed after 1 day of cultivation on agar plates with the addition of OCMC. OCMC at the concentration of 1.0 mg/mL exhibited the strongest inhibitory effect. The interaction between chitosan or OCMC and ct-DNA could result in the structural damage of ct-DNA. |
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| Keywords: | O-carboxymethyl chitosan Aspergillus niger inhibitory activity DNA |
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