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FABRICATION AND MECHANICAL STRENGTH CHARACTERIZATION OF ZnO NANOCOMPOSITE BIOPLASTIC FILM WITH MICROBIAL IMMOBILIZING ACTIVITY

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  • 발행기관
    국제과학영재학회 바로가기
  • 간행물
    APEC Youth Scientist Journal 바로가기
  • 통권
    Vol. 6 No.1 (2014.02)바로가기
  • 페이지
    pp.25-37
  • 저자
    Kristine Mae U. Amandoron, Emily Jane G. Merin, Cyd Kristoff Redelosa
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A328942

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원문정보

초록

영어
Green packaging film continuously gains attention attention nowadays. Efforts to improve it mechanical p roperties have been explored through nanotechnology. ZnO nanoparticles incorporation to biofilms was exp lored. Nano-ZnO was purchased from US Research Nanomaterials, Inc. with 80 - 200 nm diameters. Bionanocomposite was done by dispersing 1-3% (w/ w) nanoparticles of the total starch in water under ultrasonication and magnetic stirring. Ratios of 3:1:1:9 of starch, glycerine, acetic acid, and water were mixed. Solution was heated to 85C to gelatinize. It was casted to molders, dried at 23'C, and peeled. Control films were also prepared. Mechanical properties were tested using Universal Testing Machine. Chemical groups were obtained by Fourier Transform Infrared (FTIR). Antimicrobial assay against Escherichia coli, Staphylococcus aureus, and Aspergillus niger was performed. Analysis was done at least in triplicates. Average tensile stress of 443.97MPa with 171.09% elongation for control and 477.03MPa with 107.80% elongation for samples with 1% nanoZnO were recorded. Strength was statistically increased without varying appreciably the strain. Bands shifting ofC-H, CO, alkanes, alkenes, and hydroxyls groups were detected. FTIR suggested ZnO-bioplastic interaction. Zone ofinhibitions (ZI) were 25.06mm (E.coli), Omm (S. aureus), and Omm (A. niger) for control. Bioplastics with 1% nanoZnO had 26.04mm (E.coli), 25.28mm (S. aureus), and Omm (A . niger) inhibitions. Films with 3% nanoZnO had 26.47mm (E.coli), 25.49mm (S. aureus), and Omm (A. niger) inhibitions. Control films initially inhibit E. coli growth only. Films with nanoZnO exhibited antimicrobial activity against tested microorganisms except in fungi. Results revealed that nanoZnO improves the bioplastic mechanical strength. It further illustrated the market potential of ZnO nanobiocomposite films as green packaging material with protection against microbes.

목차

ABSTRACT
 1. INTRODUCTION
 2. MATERIALS AND METHODS
  2.1. Preparation of ZnO Nanocomposite Bioplastic Film
  2.2. Characterization of ZnO N anocomposite Bioplastic Films
  2.3. Analysis
 3. RESULTS AND DISCUSSION
  3.1. Fabrication of Films
  3.2. Mechanical Strength
  3.3. Fourier Transform Analysis of Bionanocomposite Films
  3.4. Antimicrobial Activity
 4. CONCLUSION
 5. ACKNOWLDEGEMENTS
 6. REFERENCES

저자

  • Kristine Mae U. Amandoron [ Philippine Science High School- Central Visayas Campus, Talaytay, Argao, Cebu ] Corresponding author
  • Emily Jane G. Merin [ Philippine Science High School- Central Visayas Campus, Talaytay, Argao, Cebu ]
  • Cyd Kristoff Redelosa [ Philippine Science High School- Central Visayas Campus, Talaytay, Argao, Cebu ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    국제과학영재학회 [The Society for the International Gifted in Science]
  • 설립연도
    2006
  • 분야
    자연과학>자연과학일반
  • 소개
    과학영재를 위한 연구 활동을 통하여 과학영재를 발굴하고, 발굴된 과학영재가 과학 분야의 관련 연구 활동을 할 수 있도록 지원하여, 이들이 과학 관련 분야의 진로를 선택하도록 장려함으로써 국제경쟁력을 갖춘 우수 과학기술인을 배출하고 국가 경제발전 및 문화창달과 세계 과학 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    APEC Youth Scientist Journal [APEC 청소년 과학학술지]
  • 간기
    반년간
  • pISSN
    2005-5625
  • 수록기간
    2009~2022
  • 십진분류
    KDC 405 DDC 505

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