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Research Article

JCR. 2020; 7(13): 3269-3275


EXTRACTION OFPOLYHYDROXYBUTYRATE FROM BACTERIA PRESENT IN AGRICULTURAL SOIL TO PRODUCE BIO-DEGEADABLE PLASTIC

Jaya Bharathi.J, Bhavaanisri G, Jeba Stephin S, Dhineshraja A.

Abstract
Plastic usage plays a major role in various applications. Synthetic plastics are produced from
nonrenewable resources like Petrochemicals and their intended use results in solid waste generation, global
environmental pollution and deterioration of properties of substances stored in plastic containers. Therefore,
there is a great need for replacement of conventional plastic. Bio- degradable plastic is the promising solution
which is free from above disadvantages. Numerous sources and ways are available to synthesis bio-degradable
plastics. The study focuses on production of Polyhydroxybutyrate (PHB), a type of bio-degradable plastic. PHB
has physical and chemical properties similar to that of conventional plastics. PHB is a carbon energy source
which is stored in bacterial walls of the species Staphylococcus sp. and Bacillus sp. under stressful growth
conditions (low nutrient supply). The study focuses mainly to isolate these bacteria from rhizospheric soil and
culture their growth to extract PHB from the bacteria. The work also involves the study of application of the
produced biodegradable plastic in the medicinal field.

Key words: Biodegradable plastic, Polyhydroxybutyrate, soil bacteria.



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