Biosynthesis and characterization of poly(beta-hydroxybutyrate) produced by Bacillus circulans

被引:5
作者
Rozsa, C
Gonzalez, M
Galego, N
Ortiz, P
Martinez, J
Martinez, R
Gomez, MR
机构
[1] UNIV LA HABANA,FAC QUIM,DEPT QUIM FIS,HAVANA 10400,CUBA
[2] UNIV NACL EDUC DISTANCIA,E-28040 MADRID,SPAIN
关键词
D O I
10.1007/BF00556801
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The biosynthesis of poly (beta-hydroxybutyrate) (PHB) by Bacillus circulans was carried out through cultivation in nutrient broth in a single step. <(M)over bar v> of polymer fractions soluble in chloroform were close to 2 x 10(5). IR, H-1 and C-13 NMR spectra of the isolated PHB were in agreement with the assumed structure of this poly-beta-hydroxyester. NMR spectroscopy pointed out a high percentage of isotactic polymer, while differential scanning calorimetry showed that the PHB was crystalline.
引用
收藏
页码:429 / 435
页数:7
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