|
ข้อมูลการเผยแพร่ผลงาน
|
ชื่อบทความที่เผยแพร่ |
Improvement of butanol fermentation using co-cultures |
วัน/เดือน/ปี ที่เผยแพร่ |
18 พฤศจิกายน 2560 |
การประชุม |
ชื่อการประชุม |
13th Young Scientist Seminar: Establishment of International Network for Tropical Bioresources and Their Utilization |
หน่วยงาน/องค์กรที่จัดประชุม |
Yamaguchi University |
สถานที่จัดประชุม |
Yamaguchi Prefectural Seminar Park, Yamaguchi, Japan |
จังหวัด/รัฐ |
Yamaguchi |
ช่วงวันที่จัดประชุม |
18 พฤศจิกายน 2560 |
ถึง |
19 พฤศจิกายน 2560 |
Proceeding Paper |
Volume (ปีที่) |
- |
Issue (เล่มที่) |
- |
หน้าที่พิมพ์ |
32 |
Editors/edition/publisher |
|
บทคัดย่อ |
Butanol, a 4-carbon alcohol, is an excellent biofuel compared to the currently popular fuel additive, ethanol. It has several advantages over ethanol, such as its higher miscibility with gasoline and diesel fuel. Butanol can be produced by fermentation process called acetone–butanol–ethanol (ABE) fermentation of Clostridium spp. under strictly anaerobic condition. To reduce the cost of butanol production, the butanol fermentation by co-cultures of Clostridium beijerinckii TISTR1461 and Arthrobacter sp. was studied, and the butanol fermentation in a stirred tank fermenter and a low-cost bioreactor (a bubble column bioreactor) were compared. In co-culture conditions, Arthrobacter sp. was used to create strictly anaerobic condition, whereas C. beijerinckii TISTR1461 was used as a butanol producer. Sugarcane molasses containing 50 g L-1 of total sugar was supplemented with dried spent yeast at 6 g L-1, and was used as substrate for ABE fermentation. In control experiment, nitrogen flushing was used to create anaerobic condition, and single culture of C. beijerinckii TISTR1461 was used to produce butanol. The fermentation was carried out in a 1-L screw capped bottle. The results showed that butanol concentration (PB) and butanol productivity (QB) of the control experiment were 8.67 g L-1 and 0.24 g L-1 h-1, respectively. Under co-culture conditions, Arthrobacter sp. was first inoculated into the molasses medium, then C. beijerinckii TISTR1461 was transferred into the medium at varying times (0-24 h of fermentation). The results showed that the simultaneous addition of C. beijerinckii TISTR1461 and Arthrobacter sp. gave the highest PB (8.81 g L-1) and QB (0.24 g L-1 h-1). These values were not different to those of the control experiment, indicating that Arthrobacter sp. could be used to create anaerobic condition instead of using nitrogen flushing method. When the butanol production by the co-cultures was performed in a 2-L stirred-tank fermenter, the PB and QB were slightly increased to 9.95 g L-1 and 0.29 g L-1 h-1, respectively. This might be due to better mixing in the fermenter. When the butanol production by the co-cultures was performed in a 1-L bubble column bioreactor, the PB and QB were slightly lower to 8.50 g L-1 and 0.24 g L-1 h-1, respectively. The results indicated that the low-cost bioreactor or bubble column bioreactor could be used to produce butanol instead of using the more expensive stirred-tank fermenter. |
ผู้เขียน |
|
การประเมินบทความ (Peer Review) |
มีผู้ประเมินอิสระ |
มีการเผยแพร่ในระดับ |
นานาชาติ |
รูปแบบ Proceeding |
Abstract |
รูปแบบการนำเสนอ |
Oral |
เป็นส่วนหนึ่งของวิทยานิพนธ์ |
เป็น |
ผลงานที่นำเสนอได้รับรางวัล |
ไม่ได้รับรางวัล |
แนบไฟล์ |
|
Citation |
0
|
|
|
|
|
|
|