Biodegradation of starch-g-polyacrylonitrile, a packaging material, by Bacillus cereus

Saroja, N; Shamala, T. R.; Tharanathan, R. N.

doi:10.1016/s0032-9592(00)00190-4

Cited by 35 publications

(15 citation statements)

References 17 publications

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“…It is noteworthy that the Rhodococci were unusually poor at converting this substrate. M195 and M208 were similar to Bacillus cereus, which is a known nitrile converter (Saroja et al 2000), while M148 was closely clustered to Alcaligenes faecalis, which is also known to convert nitriles (Yamamoto et al 1991). Species of Bacillus and Alcaligenes have been isolated from cyanide containing mine tailings previously (Ingvorsen et al 1991;Meyers et al 1991Meyers et al , 1993.…”

Section: Discussionmentioning

confidence: 98%

Hydrolysis of nitriles by soil bacteria: variation with soil origin

et al. 2017

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Enzymes are typically substrate specific in their catalytic reactions, and this means that a wide diversity of enzymes is required to provide a comprehensive biocatalysis toolbox. This paper shows that the microbial diversity of nitrile hydrolysis activity can be targeted according to land utilization. Nitrile biocatalysis is a green chemical method for the enzymatic production of amides and carboxylic acids that has industrial applications, such as in the synthesis of acrylamide and nicotinamide. The biocatalysts discovered in this study may be applied to the synthesis of peptidomimetics which are an important class of therapeutic compounds.

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Section: Discussionmentioning

confidence: 98%

Hydrolysis of nitriles by soil bacteria: variation with soil origin

et al. 2017

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“…Starch filled polyethylene plastics are biologically degraded. [ 98,99 ] The physical traits of PS imparted new desirable properties to the thermoplastic films and influenced their accessibility to digestive enzymes based on their high solubility. [ 16–19 ]…”

Section: Digestibility and Biodegradability Of Psmentioning

confidence: 99%

Phosphorylated Starches: Preparation, Properties, Functionality, and Techno‐Applications

Ramadan

Sitohy

2020

Starch Stärke

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Starches are valuable biopolymers with several functional and technical applications. Physical and chemical modifications are needed to enhance starch functionality. Modified starches exhibit high technological properties in food and non-food applications. Modified starches are designed to overcome some physicochemical shortcomings of native starches, such as loss of thickening power and viscosity during thermal treatments, storage, retrogradation, and syneresis. Phosphorylation is an effective technique to enhance the functional traits of starches and to modify its physicochemical characteristics (i.e., pasting, gelatinization, and retrogradation). This review summarizes preparation methods, physicochemical properties as well as food and non-food applications of phosphorylated starch (PS). PSs are being used as a thickener, emulsifier, and stabilizer in food applications. Furthermore, PS can be used as a sedimentation agent for the reclamation of wastes of spent water from the processing of fruits, meat, fishes, vegetables, and brewage. Because PS can substitute and reduce the amount of polyvinyl alcohol, it is used for fixing and sizing in the textile industry. In addition, PS can be used for paper sizing or paper cardboard adhesive coating. It is anticipated that new ventures for PS and their diverse applications will continue to be of a major interest in applied sciences.

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“…With spherocrystal starch (spherical crystal aggregates of starch formed from jet cooked), the molecular weight of polyacrylonitrile grafted was six times higher than with granular starch ( M w = 67 000–386 000 g/mol). The copolymer could be aerobically degraded by bacterium Bacillus cereus from soil . The grafting of polymethacrylonitrile on a slurry of starch was performed (GP = 0–105%) but no grafting occurred beyond 45°C .…”

Section: Grafting From Via Radical Polymerizationmentioning

confidence: 99%

Modification of starch by graft copolymerization

et al. 2017

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Research toward bio-based and biodegradable polymers has received a lot of attention these last years, due to environmental concerns and the need to replace fossil resources. Starch is in this frame an interesting starting material due to its abundance and low cost. Native starch displays however, poor mechanical properties and is highly hydrophilic. New starch-based thermoplastic materials can be prepared to overcome these drawbacks by chemical modification, and notably graft copolymerization. A large range of polymers can be grafted on starch by ring-opening and radical polymerizations of various monomers in order to modulate the properties of the final product. Polymers can also be directly grafted onto starch using coupling strategies. This review presents the state of the art in the field.

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Biodegradation of starch-g-polyacrylonitrile, a packaging material, by Bacillus cereus

Cited by 35 publications

References 17 publications

Hydrolysis of nitriles by soil bacteria: variation with soil origin

Hydrolysis of nitriles by soil bacteria: variation with soil origin

Phosphorylated Starches: Preparation, Properties, Functionality, and Techno‐Applications

Modification of starch by graft copolymerization

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