Production of poly(3-hydroxybutyrate) by Cupriavidus Necator in hydrolyzed rice starch medium with soybean oil supplementation at different temperatures

Química Nova

Ienczak, Jaciane Lutz¹  Dalcanton, Francieli¹  Universidade Federal de Santa Catarina, Florianópolis, Brasil¹  Fiorese, Mônica Lady¹  Aragão, Gláucia Maria Falcão de¹ 

关键词: poly(3-hydroxybutyrate);    soybean oil supplementation;    hydrolyzed rice starch.;   

DOI  :  10.1590/S0100-40422010000300011

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Poly (3-hydroxybutyrate) (P(3HB)) is a biopolymer, completely biodegradable, which has similar properties to fuel-based polymers. However to make it economically competitive it is necessary the study of cheap sources of substrate. The influence of hydrolyzed rice starch supplemented with soybean oil at different temperatures (30, 35 and 40 °C) was studied in the production of P(3HB) by C. necator. The percentage of P(3HB) produced in the cultures at 30, 35 °C was 30, 39% and 35, 43% without and with supplementation of oil, respectively. The culture at 40 °C showed no production phase due to a possible oxygen limitation. These results demonstrate that hydrolyzed rice starch supplemented with soybean oil increases the yield of P(3HB) and temperature of 35 ÂºC is the most favorable for biopolymer production.

【 授权许可】

Unknown