title: Synergistic effects of guanidine-grafted CMC on enhancing antimicrobial activity and dry strength of paper.
abstract: In order to improve the strength property and antimicrobial activity of paper simultaneously, we prepared a novel multifunctional agent based on carboxymethyl cellulose (CMC) by a simple two-stage method. The first stage was the oxidation of CMC to obtain the dialdehyde CMC (DCMC), and the second stage was the graft of guanidine hydrochloride (GH) onto DCMC to obtain DCMC-GH polymer. The strength property and antimicrobial activity of DCMC-GH-coated copy paper have been studied by the tensile test and inhibition zone method, respectively. The results showed that the dry strength index could increase about 20% after the paper was coated with DCMC-GH. The coating of DCMC-GH on paper also resulted in excellent antimicrobial activities against Escherichia coli and Staphylococcus aureus, and the inhibition zone became larger as the GH content grafted on DCMC increased. The novel DCMC-GH polymer would be a multifunctional coating agent for food packaging paper.
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Liu
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Yaoguang
authors.initials: Y
authors.lastname: Xu
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Xinxing
authors.initials: X
authors.lastname: Lin
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address: fafuclh@163.com.
authors.forename: Lihui
authors.initials: L
authors.lastname: Chen
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Liulian
authors.initials: L
authors.lastname: Huang
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Shilin
authors.initials: S
authors.lastname: Cao
authors.affiliation: College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D002266:Carboxymethylcellulose Sodium / Q000737:chemistry* / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D004927:Escherichia coli Infections / Q000517:prevention & control; D018857:Food Packaging; D019791:Guanidine / Q000737:chemistry* / Q000494:pharmacology; D006801:Humans; D055595:Mechanical Phenomena; D010084:Oxidation-Reduction; D010209:Paper; D013203:Staphylococcal Infections / Q000517:prevention & control; D013211:Staphylococcus aureus / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D019791:Guanidine; D002266:Carboxymethylcellulose Sodium
keywords: Antimicrobial activity; Carboxymethyl cellulose; Guanidine hydrochloride; Paper; Strength property