Moisture Sorption Characteristics of Microbially Produced Polysaccharide and Polyvinyl Alcohol Blends

Sudhamani, S. R. and Eugene Raj, A. and Baldev, Raj and Prasad, M. S. (2005) Moisture Sorption Characteristics of Microbially Produced Polysaccharide and Polyvinyl Alcohol Blends. Journal of Polymers and the Environment, 13 (3). pp. 253-260.

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Abstract

Moisture sorption characteristics of microbial polysaccharide (Ps.C101) from Pseudomonas caryophilli and polyvinyl alcohol (PVA) blends have been carried out at 27�C for water activity from 0.1 to 0.9. The sorption data was used to fit six different sorption isotherm models proposed in literature. The model constants were determined by linear fitting of the sorption equations. The ranges of applicability of water activity for isotherm models reported in this paper lie in between 0.1 and 0.4 for Brunaur–Emmet–Teller (BET) model (monolayer), and in between 0.2 and 0.9 for other models. The value of the coefficient of determination (R2 = 0.97 ± 0.02) confirms the applicability of the equations studied.

Item Type:	Article
Uncontrolled Keywords:	Biodegradable; blend films; microbial polysaccharide
Subjects:	500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 27 Polymer Chemistry
Divisions:	Fermentation Technology and Bioengineering Food Microbiology Food Packaging Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	22 Jun 2017 06:10
Last Modified:	22 Jun 2017 06:10
URI:	http://ir.cftri.res.in/id/eprint/12645

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