A Citrus Peel Waste Biorefinery for Ethanol and Methane Production
A Citrus Peel Waste Biorefinery for Ethanol and Methane Production
复制标题
用于生产乙醇和甲烷的柑橘皮废物生物精炼厂
DOI:
10.3390/molecules24132451
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发表时间:
2019
期刊:
影响因子:
4.6
通讯作者:
M. Koutinas
中科院分区:
文献类型:
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作者:
M. Patsalou;C. Samanides;E. Protopapa;S. Stavrinou;I. Vyrides;M. Koutinas
This paper deals with the development of a citrus peel waste (CPW) biorefinery that employs low environmental impact technologies for production of ethanol and methane. Three major yeasts were compared for ethanol production in batch fermentations using CPW pretreated through acid hydrolysis and a combination of acid and enzyme hydrolysis. The most efficient conditions for production of CPW-based hydrolyzates included processing at 116 °C for 10 min. Pichia kudriavzevii KVMP10 achieved the highest ethanol production that reached 30.7 g L−1 in fermentations conducted at elevated temperatures (42 °C). A zero-waste biorefinery was introduced by using solid biorefinery residues in repeated batch anaerobic digestion fermentations achieving methane formation of 342 mL gVS−1 (volatile solids). Methane production applying untreated and dried CPW reached a similar level (339–356 mL gVS−1) to the use of the side stream, demonstrating that the developed bioprocess constitutes an advanced alternative to energy intensive methods for biofuel production.
DOI:
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