Pretreatment of Corn Stover by Low Moisture Anhydrous Ammonia (LMAA) in a Pilot-Scale Reactor and Bioconversion to Fuel Ethanol and Industrial Chemicals
- Authors
- Nghiem, Nhuan P.; Senske, Gerard E.; Kim, Tae Hyun
- Issue Date
- Apr-2016
- Publisher
- SPRINGER
- Keywords
- Cellulosic biomass; Corn stover; Pretreatment; Low moisture anhydrous ammonia; Ethanol; Value-added products; Fermentation
- Citation
- APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, v.179, no.1, pp.111 - 125
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
- Volume
- 179
- Number
- 1
- Start Page
- 111
- End Page
- 125
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/14134
- DOI
- 10.1007/s12010-016-1982-2
- ISSN
- 0273-2289
- Abstract
- Corn stover (CS) adjusted to 50, 66, and 70 % moisture was pretreated by the low moisture anhydrous ammonia (LMAA) process in a pilot-scale ammoniation reactor. After ammoniation, the 70 % moisture CS was treated at 90 and 100 A degrees C whereas the others were treated at 90 A degrees C only. The 70 % moisture pretreated CS then was subjected to a storage study under non-sterile conditions for 3 months. It was found that storage time did not have significant effects on the compositions of the pretreated materials and their hydrolysis by commercial enzymes. The 70 % moisture CS treated at 90 A degrees C was used for preparation of a mix sugar hydrolysate (MSH) using combination of cellulase and xylanase. The MSH was used to prepare a corn mash at 9.5 wt% solid then subjected to ethanol fermentation by Escherichia coli KO11. The 66 % moisture CS treated at 90 A degrees C was hydrolyzed with xylanase to make a xylose-rich hydrolysate (XRH), which was subsequently used for butyric acid fermentation by Clostridium tyrobutyricum. The resultant cellulose-enriched residue was hydrolyzed with cellulase to make a glucose-rich hydrolysate (GRH), which was subsequently used for succinic acid fermentation by E. coli AFP184.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/14134)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.