BioChem - DOS

Biorefining process of carbohydrate feedstock (agricultural onion waste) to acetic acid

ACS omega

Kim, Ho Myeong; Choi, In Seong; Lee, Seoyoun; Yang, Jung Eun; Jeong, Seul-Gi; Park, Ji Hye; Ko, Seung Hee; Hwang, In Min; Chun, Ho Hyun; Wi, Seung Gon; Kim, Jin-Cheol; Park, Hae Woong

<P>The biorefining of agricultural waste into green chemicals has clear potential for improving global environmental sustainability. In this study, we evaluated the potential of acetic acid production from carbohydrate feedstock (onion waste, OW) as a more environmentally friendly source than feedstock produced from natural gas. In particular, OW is an ideal feedstock for the biorefining process as it contains a sufficient amount of carbohydrates (69.7%). Five days of the simultaneous saccharification and two-step fermentation (SSTF) process produced acetic acid from OW more efficiently than the simultaneous saccharification and cofermentation (SSCF) process. SSTF produced 19.3 g/L acetic acid and recorded the highest conversion yield (90.5%) from OW (6% substrate loading, w/v). These results suggested that acetic acid can be efficiently and sustainably produced from OW by the SSTF process.</P><BR>[FIG OMISSION]</BR>

2019

American Chemical Society

publisher-specific-oa

2470-1343

4

27

pp.22438-22444

10.1021/acsomega.9b03093

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART98695862

https://pubs.acs.org/doi/pdf/10.1021/acsomega.9b03093