干旱区生态环境知识资源中心(Arid): Desert stream phototrophic mats: a promising source for biofuel production

Arid

DOI	10.1080/17597269.2017.1368059
	Desert stream phototrophic mats: a promising source for biofuel production
	Gomaa, Mohamed A.; Al-Kindi, Asma; Abed, Raeid M. M.
通讯作者	Abed, Raeid M. M.
来源期刊	BIOFUELS-UK
ISSN	1759-7269
EISSN	1759-7277
出版年	2020
卷号	11 期号:3 页码:339-349
英文摘要	Desert streams occur in abundance in the mountain regions of the Arabian Peninsula, where massive areas are covered by phototrophic microbial mats. In this study, 11 different phototrophic microbial mats were screened for their carbohydrate and lipid contents and their ability to produce methane, and mats with potential were further used for biofuel production. A maximum bioethanol yield of 0.76 +/- 0.1 g/L was obtained by enzymatic saccharification of one mat, which was dominated by the alga Spirogyra, followed by fermentation of the produced sugars using the native Clostridium strain AK-1. A lipid content of 9-18 wt% was measured from the microbial mats. An increase of 4% and 9% was observed, when the mat with the highest lipid content was incubated under 3% salinity and nitrogen deprivation conditions, respectively. Anaerobic digestion of one selected cyanobacterial mat for biomethane production yielded a maximum of 95 mL CH4/g VS (volatile solids) after 49 days. MiSeq analysis revealed that the microbial community of this mat was 99.5% dominated by archaea, mainly belonging to the genera Methanoculleus (56.7%), Methanobacterium (27%) and Methanosarcina (7.6%). Our results demonstrate the potential of using microbial mats from desert streams to produce bioethanol, biodiesel and biomethane.
英文关键词	Biofuels mats desert Spirogyra biodiesel methanogens
类型	Article
语种	英语
国家	Oman
收录类别	SCI-E
WOS记录号	WOS:000521971500011
WOS关键词	IN-SITU TRANSESTERIFICATION ; HYPERSALINE MICROBIAL MATS ; FRESH-WATER MICROALGAE ; BIODIESEL PRODUCTION ; ANAEROBIC-DIGESTION ; MOLECULAR DIVERSITY ; COMMUNITY STRUCTURE ; LIPID-ACCUMULATION ; BIOGAS PRODUCTION ; WASTE-WATER
WOS类目	Energy & Fuels
WOS研究方向	Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314169
作者单位	Sultan Qaboos Univ, Dept Biol, Coll Sci, POB 36, Al Khoud 123, Oman
推荐引用方式 GB/T 7714	Gomaa, Mohamed A.,Al-Kindi, Asma,Abed, Raeid M. M.. Desert stream phototrophic mats: a promising source for biofuel production[J],2020,11(3):339-349.
APA	Gomaa, Mohamed A.,Al-Kindi, Asma,&Abed, Raeid M. M..(2020).Desert stream phototrophic mats: a promising source for biofuel production.BIOFUELS-UK,11(3),339-349.
MLA	Gomaa, Mohamed A.,et al."Desert stream phototrophic mats: a promising source for biofuel production".BIOFUELS-UK 11.3(2020):339-349.