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Dependence of the mechanical properties of a pullulan film on the preparation temperature

Bioscience, biotechnology, and biochemistry, 2003-04, Vol.67 (4), p.893-895 [Peer Reviewed Journal]

2003 by Japan Society for Bioscience, Biotechnology, and Agrochemistry 2003 ;2003 INIST-CNRS ;Copyright Japan Science and Technology Agency 2003 ;ISSN: 0916-8451 ;EISSN: 1347-6947 ;DOI: 10.1271/bbb.67.893 ;PMID: 12784635

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Title:
Dependence of the mechanical properties of a pullulan film on the preparation temperature
Author: Kawahara, M. (Osaka Prefectural Univ., Sakai (Japan)) ; Mizutani, K ; Suzuki, S ; Kitamura, S ; Fukada, H ; Yui, T ; Ogawa, K
Subjects: AUREOBASIDIUM PULLULANS ; Biological and medical sciences ; EDIBLE FILMS ; ELASTICITY ; Fundamental and applied biological sciences. Psychology ; Glucans - chemistry ; MECHANICAL PROPERTIES ; Mechanics ; plastic deformation ; PLASTICS ; Pliability ; POLYSACCHARIDES ; PROCESSING ; pullulan film ; STRENGTH ; TEMPERATURE ; Tensile Strength ; Young's modulus
Is Part Of: Bioscience, biotechnology, and biochemistry, 2003-04, Vol.67 (4), p.893-895
Description: The mechanical properties of pullulan films prepared at various temperatures were investigated. The films prepared at high temperatures (40°C and 60°C; H-films) did not show any clear plastic deformation in tensile test, indicating that they were brittle. In contrast, those prepared at low temperatures (4°C, 13°C, and 25°C; L-films) showed such deformation. The latter films had higher values for both tensile strength and elastic modulus than the former, indicating that the L-films were stiffer and more flexible than the H-films. Stretching the L-films clearly showed a shear deformation band inclined at 45° to the stretching direction, indicating that they were amorphous.
Publisher: Tokyo: Japan Society for Bioscience, Biotechnology, and Agrochemistry
Language: English
Identifier: ISSN: 0916-8451
EISSN: 1347-6947
DOI: 10.1271/bbb.67.893
PMID: 12784635
Source: GFMER Free Medical Journals
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Dependence of the mechanical properties of a pullulan film on the preparation temperature

2003 by Japan Society for Bioscience, Biotechnology, and Agrochemistry 2003 ;2003 INIST-CNRS ;Copyright Japan Science and Technology Agency 2003 ;ISSN: 0916-8451 ;EISSN: 1347-6947 ;DOI: 10.1271/bbb.67.893 ;PMID: 12784635

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