Microbial oil production from sugarcane bagasse hydrolysates by oleaginous yeast and filamentous fungi
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2016
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Resumo |
This study investigated the potential use of sugarcane bagasse as a feedstock for oil production through microbial cultivation. Bagasse was subjected to dilute acid pretreatment with 0.4 wt% H2SO4 (in liquid) at a solid/liquid ratio of 1:6 (wt/wt) at 170 °C for 15 min, followed by enzymatic hydrolysis of solid residue. The liquid fractions of the pretreatment process and the enzymatic hydrolysis process were detoxified and used as liquid hydrolysate (SCBLH) and enzymatic hydrolysate (SCBEH) for the microbial oil production by oleaginous yeast (Rhodotorula mucilaginosa) and filamentous fungi (Aspergillus oryzae and Mucor plumbeus). The results showed that all strains were able to grow and produce oil from bagasse hydrolysates. The highest oil concentrations produced from bagasse hydrolysates were by M. plumbeus at 1.59 g/L (SCBLH) and 4.74 g/L (SCBEH). The microbial oils obtained have similar fatty acid compositions to vegetable oils, indicating that the oil can be used for the production of second generation biodiesel. On the basis of oil yields obtained by M. plumbeus, from 10 million t (wet weight) of bagasse generated annually from sugar mills in Australia, it is estimated that the total biodiesel that could be produced would be equivalent to about 9% of Queensland’s diesel consumption. |
Formato |
application/pdf |
Identificador | |
Relação |
http://eprints.qut.edu.au/93769/3/93769.pdf Ahmad, Farah B., Zhang, Zhanying, Doherty, William O.S., & O'Hara, Ian M. (2016) Microbial oil production from sugarcane bagasse hydrolysates by oleaginous yeast and filamentous fungi. In Australian Society of Sugar Cane Technologists 36th Conference, 29 April - 1 May 2014, Gold Coast, Qld. (In Press) MINISTRY OF HIGHER E/KPT(BS) 871125025804 |
Direitos |
Copyright 2016 [Please consult the author] |
Fonte |
School of Chemistry, Physics & Mechanical Engineering; Centre for Tropical Crops and Biocommodities; Science & Engineering Faculty |
Palavras-Chave | #090499 Chemical Engineering not elsewhere classified #099901 Agricultural Engineering #Sugarcane #Bagasse #Oil #Biodiesel #Yeast #Fungi |
Tipo |
Conference Paper |