EFFECT OF GLASS MICROBEADS ON THE MICROBIAL DEGRADATION OF CHITIN

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Abstract
The initial rates of mineralization of chitin by Pseudomonas sp. and soil microorganisms were enhanced in media containing glass microbeads, the extent of stimulation being governed by bead size. Size of the glass particles also affected the formation of reducing sugars during chitin decomposition. A thin layer of 29 μm beads placed between the polysaccharide and Pseudomonas sp. almost totally prevented chitin degradation for 15 days, but the attack was retarded somewhat even with glass particles of larger diameter. No decomposition occurred if a thicker layer of small glass spheres was placed between the substrate and the bacterium. The initial rates of mineralization of chitin by Pseudomonas sp. and soil microorganisms were enhanced in media containing glass microbeads, the extent of stimulation being governed by bead size. Size of the glass particles also affected the formation of reducing sugars during chitin decomposition. A thin layer of 29 μm beads placed between the polysaccharide and Pseudomonas sp. almost totally prevented chitin degradation for 15 days, but the attack was retarded somewhat even with glass particles of larger diameter. No decomposition occurred if a thicker layer of small glass spheres was placed between the substrate and the bacterium. © Williams & Wilkins 1974. All Rights Reserved.

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