• Corpus ID: 173983489

Biodegradation Studies of Polyhydroxyalkanoates extracted from Bacillus Subtilis NCDC 0671

  title={Biodegradation Studies of Polyhydroxyalkanoates extracted from Bacillus Subtilis NCDC 0671},
  author={Mridul Umesh and Basheer Thazeem},
The major characteristic feature that distinguishes polyhydroxyalkanoates (PHAs) from its synthetic counterparts is its biodegradability. PHAs are the only class of biopolymers reported to be 100% degradable under both aerobic and anaerobic conditions without production of any toxic residues. The biodegradability of PHAs is influenced by several factors like moisture, temperature, pH, surface area and molecular weight of the polymer. The rate of biodegradation varies greatly depending on the… 

Figures and Tables from this paper

A review on enzymes and pathways for manufacturing polyhydroxybutyrate from lignocellulosic materials
Currently, major focus in the biopolymer field is being drawn on the exploitation of plant-based resources grounded on holistic sustainability trends to produce novel, affordable, biocompatible and
Role of Bacillus spp. in Agriculture
Among the microbes, Bacillus sp is considered as an effective bioremediating agent as they are the warehouse of copious enzymes, eco-friendly products, and plant growth-promoting metabolites that play a key role in agriculture, textile, food, leather, and beverage industries and thereby ensure soil sustainability.
A Strategic Review on Use of Polyhydroxyalkanoates as an Immunostimulant in Aquaculture
Up-to-date scientific research studies on use of polyhydroxyalkanoates as aquafeed additives and their immunomodulatory effects are explored to introduce these biopolymers as the most promising eco-friendly alternatives for antibiotics in aquaculture.


Soil burial biodegradation studies of starch grafted polyethylene and identification of Rhizobium meliloti therefrom
Present study report on biodegradation of starch grafted polyethylene (PE), successfully synthesized by graft copolymerization method using benzoyl peroxide as the radical initiator. Biodegradable
Evaluation of the biodegrading action of the Penicillium Sp. on some composites based on PHB
Biodegradation studies of PHB with wood fibers/celluloze fibers composites were performed. These materials are of interest for food packaging applications, which presume to solve the problems
Microbial degradation of an aliphatic polyester with a high melting point, poly(tetramethylene succinate)
The biodegradability of poly(tetramethylene succinate) (PTMS), a synthetic aliphatic polyester with a high melting point, was evaluated and the crude enzyme showed a wide range of substrate specificity, being able to degrade low-molecular-weight PTMS, PCL, PHB, and even high-molescular- Weight PTMS.
Biodegradation of Aliphatic-Aromatic Copolyesters by Thermomonospora fusca and Other Thermophilic Compost Isolates
ABSTRACT Random aliphatic-aromatic copolyesters synthesized from 1,4-butanediol, adipic acid, and terephthalic acid (BTA) have excellent thermal and mechanical properties and are biodegradable by
Mechanical properties of some bioplastics under different soil types used as biodegradable drip tubes
A lack of degradability and the closing of landfill sites, as well as growing water and land pollution problems, have led to concern about plastics. With the excessive use of plastics and increasing
Polyhydroxyalkanoates: an overview.
A rapid evaluation plate-test for the biodegradability of plastics
Solid-media agar-plate tests were investigated for their potential to evaluate the biodegradation of polymeric particles by certain strains of microorganisms, and zone formation was concluded to be dependent on the amount of enzyme production plus the enzyme activity.
Materials derived from biomass/biodegradable materials.
  • W. D. Luzier
  • Materials Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 1992
An overview of the manufacturing process, properties, biodegradability, and application/commercial issues associated with PHBV copolymers is provided.