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

Quimica nova

Ienczak, Jaciane Lutz¹  Dalcanton, Francieli¹  Fiorese, Mônica Lady¹  Aragão, Gláucia Maria Falcão de¹ 

[1] Universidade Federal de Santa Catarina, Florianópolis, Brasil

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 propertiesto fuel-based polymers. However to make it economically competitive it is necessarythe study of cheap sources of substrate. The influence of hydrolyzed rice starchsupplemented with soybean oil at different temperatures (30, 35 and 40 °C)was studied in the production of P(3HB) by C. necator. The percentageof 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 °Cshowed no production phase due to a possible oxygen limitation. These resultsdemonstrate that hydrolyzed rice starch supplemented with soybean oil increasesthe yield of P(3HB) and temperature of 35 ºC is the most favorable forbiopolymer production.

【 授权许可】

CC BY