02131nas a2200229   4500008004100000022001400041245021700055210006900272260009900341300001400440490000800454520111600462653002701578653002501605653002601630100002101656700002501677700002401702700002001726700002401746856013101770       2010                        eng d  a0960-852400aProduction and characterization of a biodegradable poly (hydroxybutyrate-co-hydroxyvalerate) (PHB-co-PHV) copolymer by moderately haloalkalitolerant Halomonas campisalis MCM B-1027 isolated from Lonar Lake, India0 aProduction and characterization of a biodegradable poly hydroxyb  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcDEC  a9765-97710 v1013 a<p>Several microorganisms produce polyhydroxyalkanoates (PHA). They are accumulated intracellularly as energy storage compounds. The PHAs are of interest because of their potential in biomedical applications. Halophilic bacteria and archaea are known to produce polyhydroxybutyrate (PHB). This paper describes production of a biodegradable copolymer, PHB-co-PHV by a moderately haloalkalitolerant Halomonas campisalis, isolated from Lonar Lake, India. The production of PHA was in the range of 45-81% on dry cell weight basis when the organism was grown in a production medium containing 1% (w/v) maltose and 0.1% (w/v) yeast extract, at pH ranging from 6 to 9 with an inoculum density of 10(5)-10(7) cells/ml of medium, for incubation period of 15-30 h and at 37 degrees C. The polymer produced by the organism is a hydroxyester with molecular weight of 1.3014 x 10(6). Its melting temperature was 171 degrees C. The (1)H NMR analysis revealed that the polymer was a copolymer of PHB-co-PHV. This could be achieved by providing simple carbon source viz. maltose. (C) 2010 Elsevier Ltd. All rights reserved.</p>10aBiodegradable plastics10aHalomonas campisalis10aPolyhydroxyalkanoates1 aKulkarni, S., O.1 aKanekar, Pradnya, P.1 aNilegaonkar, S., S.1 aSarnaik, S., S.1 aJog, Jyoti, Prakash  uhttps://library.ncl.res.in/content/production-and-characterization-biodegradable-poly-hydroxybutyrate-co-hydroxyvalerate-phb-0