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Characterization of Bacteriostatic Sausage Casing: A Composite of Bacterial Cellulose Embedded with ${varepsilon}$-Polylysine
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  • Characterization of Bacteriostatic Sausage Casing: A Composite of Bacterial Cellulose Embedded with ${varepsilon}$-Polylysine
  • Characterization of Bacteriostatic Sausage Casing: A Composite of Bacterial Cellulose Embedded with ${varepsilon}$-Polylysine
저자명
Zhu. Huixia,Jia. Shiru,Yang. Hongjiang,Tang. Weihua,Jia. Yuanyuan,Tan. Zhilei
간행물명
Food science and biotechnology
권/호정보
2010년|19권 6호|pp.1479-1484 (6 pages)
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한국식품과학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The feasibility of a novel bacteriostatic sausage casing made of bacterial cellulose (BC) embedded with ${varepsilon}$-polylysine (${varepsilon}$-PL) was evaluated. The ${varepsilon}$-PL/BC composite was prepared by immersing BC tubes in ${varepsilon}$-PL solution and its characteristics were analyzed with Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and atomic force microscopy (AFM) techniques, respectively. The results suggested that ${varepsilon}$-PL molecules were incorporated into the cellulose fiber networks and the ${varepsilon}$-PL/BC composite might have a novel unique structure. No significant loss of antimicrobial activity was observed even after autoclaving at $121^{circ}C$ for 30 min and the oxygen permeability was far below than that of polyethylene (PE) and polyvinyl alcohol (PVA) membrane. Its tensile strength was 51.8 MPa. The ${varepsilon}$-PL/BC composite exhibits bacteriostatic and/or bacteriocidal activities against a broad spectrum of Gram-positive and Gram-negative bacteria; as a result, an extended shelf life than controls was observed for sausage packaged with the ${varepsilon}$-PL/BC composite.