Sunflower-based biorefinery: Poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) production from crude glycerol, sunflower meal and levulinic acid

被引：51

作者：

Kachrimanidou, Vasiliki ^{[1
]}

Kopsahelis, Nikolaos ^{[1
]}

Papanikolaou, Seraphim ^{[1
]}

Kookos, Ioannis K. ^{[2
]}

De Bruyn, Mario ^{[3
]}

Clark, James H. ^{[3
]}

Koutinas, Apostolis A. ^{[1
]}

机构：

[1] Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, Athens

[2] Department of Chemical Engineering, University of Patras, Patras, Rio

[3] Green Chemistry Center of Excellence, University of York, Heslington, York

来源：

Bioresource Technology | 2014年 / 172卷

关键词：

Bacterial bioconversion; Biodiesel industry by-products; Cupriavidus necator; Polyhydroxyalkanoates;

D O I：

10.1016/j.biortech.2014.08.044

中图分类号：

学科分类号：

摘要：

Polyhydroxybutyrate (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB-co-3HV)] production was developed in bioreactor cultures using the strain Cupriavidus necator DSM 7237 cultivated on crude glycerol, sunflower meal (SFM) hydrolysates and levulinic acid as the sole fermentation feedstocks. Bacterial growth and PHB production was influenced significantly by the free amino nitrogen and inorganic phosphorus content of the SFM hydrolysate. Fed-batch bioreactor fermentations led to the production of 27gL-1 PHB with an intracellular content of 72.9% (w/w). Continuous feeding of levulinic acid led to the production of up to 23.4gL-1 P(3HB-co-3HV) with an intracellular content of 66.4% (w/w) and a 3HV content of 22.5mol%. A maximum 3HV content of 31mol% was achieved at earlier fermentation time (53h). Thus, levulinic acid could be combined with biodiesel industry by-products for the production of high P(3HB-co-3HV) concentration, intracellular content and industrially useful 3HV content. © 2014 Elsevier Ltd.

引用

页码：121 / 130

页数：9

共 35 条

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