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A comprehensive review on microbial degradation of plastic waste Kumar, Sahni; Teotia, U.V.S; Singh, Yogendra
Journal of Applied Pharmaceutical Research Vol 5 No 4 (2017)
Publisher : Creative Pharma Assent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18231/2348-0335.2017.0009

Plastic is a broad name given to different polymers with high molecular weight, which can be degraded by various processes. However, considering their abundance in the environment and their specificity in attacking plastics, biodegradation of plastics by microorganisms and enzymes seems to be the most effective process. When plastics are used as substrates for microorganisms, evaluation of their biodegradability should not only be based on their chemical structure, but also on their physical properties (melting point, glass transition temperature, crystallinity, storage modulus etc.). In this review, microbial and enzymatic biodegradation of plastics and some factors that affect their biodegradability are discussed. Plastics have become an important part of modern life and are used in different sectors of applications like packaging, building materials, consumer products and much more. Each year about 100 million tons of plastics are produced worldwide. Degradation is defined as reduction in the molecular weight of the polymer. The Degradation types are (a). Chain end degradation/de-polymerization (b).Random degradation/reverse of the poly condensation process. Biodegradation is defined as reduction in the molecular weight by naturally occurring microorganisms such as bacteria, fungi, and actinomycetes. That is involved in the degradation of both natural and synthetic plastics. 

Screening of poly vinyl chloride degrading bacteria from plastic contaminated area of Baddi Kumar, Sahni; Teotia, UVS; Singh, Yogendra
Journal of Applied Pharmaceutical Research Vol 5 No 3 (2017)
Publisher : Creative Pharma Assent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18231/2348-0335.2017.0005

Plastic wastes are posing ever increasing environmental concerns. Recent research works have shown that most of the constituents of plastics can be degraded by microbes and the film plastics can be treated by microbial systems. In this study, poly vinyl chloride (PVC), degrading bacteriaâs were isolate and characterize from soil dumped with plastics. The PVC degradating bacterial were identified as E.Coli, Staphylococcus, Pseudomonas and Klebsiella. It was observed that maximum degradation by Pseudomonas and degradation after 10 months was 40.53%, 23.06%, 10.92% and 5.32% for Pseudomonas, Klebsiella, Staphylococcus and E.Coli respectively.This work concluded that soil contains bacteriaâs that have ability to carry degradation of poly vinyl chloride (PVC)

Screening of poly vinyl chloride degrading bacteria from plastic contaminated area of Baddi Kumar, Sahni; Teotia, U. V. S; Singh, Yogendra
Journal of Applied Pharmaceutical Research Vol. 5 No. 3 (2017)
Publisher : Creative Pharma Assent

Plastic wastes are posing ever increasing environmental concerns. Recent research works have shown that most of the constituents of plastics can be degraded by microbes and the film plastics can be treated by microbial systems. In this study, poly vinyl chloride (PVC), degrading bacteria’s were isolate and characterize from soil dumped with plastics. The PVC degradating bacterial were identified as E.Coli, Staphylococcus, Pseudomonas and Klebsiella. It was observed that maximum degradation by Pseudomonas and degradation after 10 months was 40.53%, 23.06%, 10.92% and 5.32% for Pseudomonas, Klebsiella, Staphylococcus and E.Coli respectively.This work concluded that soil contains bacteria’s that have ability to carry degradation of poly vinyl chloride (PVC)

A comprehensive review on microbial degradation of plastic waste Kumar, Sahni; Teotia, U. V. S; Singh, Yogendra
Journal of Applied Pharmaceutical Research Vol. 5 No. 4 (2017)
Publisher : Creative Pharma Assent

Plastic is a broad name given to different polymers with high molecular weight, which can be degraded by various processes. However, considering their abundance in the environment and their specificity in attacking plastics, biodegradation of plastics by microorganisms and enzymes seems to be the most effective process. When plastics are used as substrates for microorganisms, evaluation of their biodegradability should not only be based on their chemical structure, but also on their physical properties (melting point, glass transition temperature, crystallinity, storage modulus etc.). In this review, microbial and enzymatic biodegradation of plastics and some factors that affect their biodegradability are discussed. Plastics have become an important part of modern life and are used in different sectors of applications like packaging, building materials, consumer products and much more. Each year about 100 million tons of plastics are produced worldwide. Degradation is defined as reduction in the molecular weight of the polymer. The Degradation types are (a). Chain end degradation/de-polymerization (b).Random degradation/reverse of the poly condensation process. Biodegradation is defined as reduction in the molecular weight by naturally occurring microorganisms such as bacteria, fungi, and actinomycetes. That is involved in the degradation of both natural and synthetic plastics.

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