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عنوان فارسی مقاله:
تولید و بررسی خصوصیات اگزوپلیمر از آپاکوس رودوکوکوس
عنوان انگلیسی مقاله:
Production and characterisation of exopolymer from Rhodococcus opacus
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Flocculation is currently a widely investigated physicochemical process, which is mainly based on the presence of flocculants, synthetic or natural, with a tendency towards aggregation of particles suspended in water. This phenomenon can be applied in manyfields fromenvironmental engineering as a wastewater treatment factor to food and fermentation industries for removing pollutants [1]. Although many inorganic and organic synthetic flocculants performed well during the flocculation process, the health and environmental problems could not be neglected [2]. It has been reported that the use of synthetic flocculants is efficient, but still not safe for the environment. Therefore, natural flocculants have been intensively studied for the last decades. Despite many advantages like biodegradability and non-toxicity as well as the variety of preferable biopolymers with flocculation activ-ity, it is necessary to optimise the whole process of derivation thereof. The macromolecules with flocculating activity are produced by microorganisms as their metabolites, mainly composed of proteins, lipids, polysaccharides, and nucleic acids [3,4]. Most bioflocculant-producing microorganisms have been isolated from soil and wastewater, and the methods of bioflocculant production and purification depend on the type of microorganisms from which this molecule is isolated. Although many microorganisms have been investigated as bioflocculant producers, probably there is still a multitude of new organisms with a potential use for flocculant application. Many factors connected with growth conditions have a crucial role in deriving of bioflocculants, and itis very important to optimise the culture parameters and all steps of biopolymer extraction and purification. The optimisation of the production and the process of purification of natural flocculants from microorganism cultures may encounter two problematic issues limiting the applications of these compounds in industry. The diversity of natural bioflocculant sources in terms of their composition and properties of analysed substances can be noticed [5]. Depending on microorganisms, it is possible to obtain products with unique features, characteristic only for a particular type of bacteria, fungi, or algae. The study performed by Patil et al.[6] demonstrates that an Azotobacter indicus ATCC 9540 strain is able to produce exopolysac
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کلمات کلیدی:
Rhodococcus opacus B4: a promising bacterium for production of ... https://www.ncbi.nlm.nih.gov › NCBI › Literature › PubMed Central (PMC) by AR Castro - 2016 - Cited by 1 - Related articles May 14, 2016 - In this work, the production of storage lipids by Rhodococcus opacus B4 using glucose, acetate and hexadecane is reported for the first time ... rhodococcus opacus pd630: Topics by Science.gov https://www.science.gov/topicpages/r/rhodococcus+opacus+pd630.html The lipid-accumulating bacterium Rhodococcus opacus PD630 has recently ..... The total exopolymer and water-soluble exopolymer fraction of different ... Production and characterisation of exopolymer from Rhodococcus ... https://www.infona.pl/resource/bwmeta1.element.elsevier-e38f34b6-8a7d.../citations Production and characterisation of exopolymer from Rhodococcus opacus. Magdalena Czemierska, Aleksandra Szcześ, Anna Pawlik, Adrian Wiater, Anna ... Production and characterisation of exopolymer from Rhodococcus ... https://www.infona.pl/.../bwmeta1.element.elsevier-e38f34b6-8a7d-3787-be27-db4130d... by M Czemierska - 2016 - Cited by 4 - Related articles An extracellular polymer with the highest flocculating activity extracted by Rhodococcus opacus was selected to characterisation. The water-soluble fraction of ... Production and characterisation of exopolymer from Rhodococcus ... https://www.sparrho.com/item/...and...exopolymer-from-rhodococcus-opacus/d7de3/ Production and characterisation of exopolymer from Rhodococcus opacus. Imported: 21 Apr '16 | Published: 20 Apr '16. Magdalena Czemierska, Aleksandra ... Calcium carbonate formation on mica supported extracellular ... adsabs.harvard.edu/abs/2016JSSCh.242..212S by A Szczes - 2016 - Related articles ... supported extracellular polymeric substance produced by Rhodococcus opacus ... The total exopolymer and water-soluble exopolymer fraction of different ...
