Bioprocess development for biolubricant production using microbial oil derived via fermentation from confectionery industry wastes

被引:65
|
作者
Papadaki, Aikaterini [1 ]
Fernandes, Keysson Vieira [2 ]
Chatzifragkou, Afroditi [1 ]
Goncalves Aguieiras, Erika Cristina [2 ]
Cavalcanti da Silva, Jose Andre [3 ]
Fernandez-Lafuente, Roberto [4 ]
Papanikolaou, Seraphim [1 ]
Koutinas, Apostolis [1 ]
Guimaraes Freire, Denise Maria [2 ]
机构
[1] Agr Univ Athens, Dept Food Sci & Human Nutr, Iera Odos 75, GR-11855 Athens, Greece
[2] Univ Fed Rio de Janeiro, Inst Chem, Dept Biochem, Cidade Univ,BL A,SL 549, BR-21949900 Rio De Janeiro, RJ, Brazil
[3] Ctr Pesquisas Leopoldo Amer Miguez de Mello, Cenpes, Petrobras, RJ, Brazil
[4] ICP CSIC, Dept Biocatalisis, C Marie Curie 2,Campus UAM CSIC, Madrid 28049, Spain
关键词
Food industry side streams; Microbial oil; Bioprocess; Biolubricants; Enzymatic biocatalysis; VALUE-ADDED COPRODUCTS; BIODIESEL PRODUCTION; SOYBEAN OIL; ENZYMATIC PRODUCTION; IMMOBILIZED LIPASE; CANOLA BIODIESEL; POUR POINT; LUBRICANTS; TRIMETHYLOLPROPANE; STREAMS;
D O I
10.1016/j.biortech.2018.07.016
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Microbial oil produced from confectionery and wheat milling side streams has been evaluated as novel feedstock for biolubricant production. Nutrient-rich fermentation media were produced by a two-step bioprocess involving crude enzyme production by solid state fermentation followed by enzymatic hydrolysis of confectionery industry waste. Among 5 yeast strains and 2 fungal strains cultivated on the crude hydrolysate, Rhodosporidium toruloides and Cryptococcus curvatus were selected for further evaluation for biolubricant production based on fermentation efficiency and fatty acid composition. The extracted microbial oils were enzymatically hydrolysed and the free fatty acids were esterified by Lipomod 34-MDP in a solvent-free system with trimethylolpropane (TMP) and neopentyl glycol (NPG). The highest conversion yields were 88% and 82.7% for NPG esters of R. toruloides and C. curvatus, respectively. This study also demonstrates that NPG esters produced from microbial oil have promising physicochemical properties for bio-based lubricant formulations that could substitute for conventional lubricants.
引用
收藏
页码:311 / 318
页数:8
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