Structural Characterization and Antibacterial Activity of Carboxymethyl Thiourea Chitosan

doi:10.7506/spkx1002-6630-201201012

FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (1): 64-67.doi: 10.7506/spkx1002-6630-201201012

• Basic Research • Previous Articles Next Articles

Structural Characterization and Antibacterial Activity of Carboxymethyl Thiourea Chitosan

LI Xiao-fang1，MA Jin-man2，FENG Xiao-qiang1，WANG Ting-pu1，YANG Sheng1，ZHANG Hong-juan1，KONG Xu-e1

1. College of Life Science and Chemistry, Tianshui Normal University, Tianshui 741001, China；
2. No. 1 Middle School of Gangu, Gangu 741200, China0

Received:2011-01-06 Revised:2012-01-06 Online:2012-01-15 Published:2012-01-12
Contact: LI Xiao-fang E-mail:lix_f06@lzu.cn

Abstract

Abstract:

Carboxymethyl thiourea chitosan (CMTCS) was prepared and characterized by infrared spectrometry (FT-IR), ultraviolet spectrometry (UV) and differential thermal and thermogravimetry analysis (TG-DTA) methods. The antibacterial activity of CMTCS against E.coli and St.aureus were investigated in vitro. The results showed that the antibacterial activity of CMTCS was obviously higher than that of chitosan with an MIC of 0.20 mg/mL against both E.coli and St.aureus.

Key words: chitosan, carboxymethyl thiourea chitosan, characterization, antibacterial activity

CLC Number:

TQ929.2

LI Xiao-fang，MA Jin-man，FENG Xiao-qiang，WANG Ting-pu，YANG Sheng，ZHANG Hong-juan，KONG Xu-e. Structural Characterization and Antibacterial Activity of Carboxymethyl Thiourea Chitosan[J]. FOOD SCIENCE, 2012, 33(1): 64-67.

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Structural Characterization and Antibacterial Activity of Carboxymethyl Thiourea Chitosan

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