Impact of feedstocks and downstream processing technologies on the economics of caproic acid production in fermentation by Megasphaera elsdenii T81

被引：14
|
作者：
Kim, Hyunjin [1 ]
Choi, Okkyoung [1 ]
Jeon, Byoung Seung [2 ]
Choe, Woo-Seok [3 ,4 ]
Sang, Byoung-In [1 ]
机构：
[1] Hanyang Univ, Dept Chem Engn, 222 Wangsimni Ro, Seoul 04763, South Korea
[2] Univ Tubingen, Cent Appl Geosci, Holderlinstr 12, D-72074 Tubingen, Germany
[3] Sungkyunkwan Univ SKKU, SKKU Adv Inst Nanotechnol SAINT, Suwon 16419, Gyeonggi Do, South Korea
[4] Sungkyunkwan Univ SKKU, Sch Chem Engn, Suwon 16419, Gyeonggi Do, South Korea
来源：
BIORESOURCE TECHNOLOGY | 2020年 / 301卷
基金：
新加坡国家研究基金会;
关键词：
Caproic acid; Megasphaera elsdenii; Extractive fermentation; Jerusalem artichoke; JERUSALEM-ARTICHOKE TUBERS; VOLATILE FATTY-ACIDS; EXTRACTIVE FERMENTATION; HEXANOIC ACID; ETHANOL FERMENTATION; ESCHERICHIA-COLI; MIXED CULTURE; L; GLUCOSE; PROTEIN;
D O I：
10.1016/j.biortech.2020.122794
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Caproic acid (CA) was produced by Megasphaera elsdenii T81 with Jerusalem artichoke tubers (JA) as a feedstock. More CA was produced under the medium with the acid hydrolysate of JA than the comparative medium with a carbon composition similar to that of JA. CA was produced up to 13.0 g/L and 0.52 g/L/h with extractive fermentation using a mixed solvent of alamine 336 in oleyl alcohol at 37 degrees C. The JA cost to produce 1 ton of CA is only 505 USD, which is much lower than that required for purchasing sucrose (860 USD) in CA production. As a result of the analysis performed using SuperPro Designer, including the cost of distillation to obtain pure CA, the estimated production cost for CA from dry JA is 1869 USD/ton CA at the production scale of 2000 ton/year, which is lower than the current market price for petroleum-derived CA (similar to 2500 USD/ton).
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页数：7
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