Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Kyeong-Keun Oh"'
Publikováno v:
Energies, Vol 15, Iss 6, p 2210 (2022)
A two-step process using colloid milling (CM) and hot water (HW) treatment was evaluated for its ability to improve xylose recovery and the enzymatic digestibility of oak wood. In the first step, CM pretreatment was applied at a milling (feeding) spe
Externí odkaz:
https://doaj.org/article/6c95d3cfe5d24a048801375b55cd5723
Publikováno v:
Fermentation, Vol 7, Iss 3, p 191 (2021)
Extremely low-liquid ammonia (ELLA) pretreatment using aqueous ammonia was investigated in order to enhance the enzymatic saccharification of corn stover and subsequent ethanol production. In this study, corn stover was treated with an aqueous ammoni
Externí odkaz:
https://doaj.org/article/6702e17a1db445fca4c62c3f30a008a8
Autor:
Hyun Jin Jung, Kyeong Keun Oh
Publikováno v:
Applied Sciences, Vol 11, Iss 16, p 7435 (2021)
Low-acid hydrothermal (LAH) fractionation conditions were optimized for the effective degradation of hemicellulose from pine wood (Pinus densiflora). The hemicellulosic sugar yield was maximized at 82.5% when the pine wood was fractionated at 190 °C
Externí odkaz:
https://doaj.org/article/a0433a684c2f4b259346fa0d960ec771
Autor:
Hyun Jin Jung, Kyeong Keun Oh
Publikováno v:
Applied Sciences, Vol 11, Iss 16, p 7508 (2021)
The alkaline fractionation of rice husk (RH) with NaOH was optimized for the purpose of obtaining a high-yield recovery of glucan and increasing the removal rate for lignin and ash, resulting in a hemicellulose-rich hydrolysate. The determined optima
Externí odkaz:
https://doaj.org/article/e75164e28dab407cacd483c13235de3f
Publikováno v:
Applied Biochemistry and Biotechnology. 194:6091-6105
Torrefaction is a thermal treatment method used to achieve solid-phase biofuel. Raw biomass generally have low heating value and high moisture content; thus, these characteristics should be enhanced before using it as a fuel. In this study, herbaceou
Publikováno v:
Energies, Vol 14, Iss 3, p 686 (2021)
The organosolv-fractionation process can act as a biorefinery process because it can separate the main components of biomass, such as lignin and hemicellulose, with high purity. The ethanol-based organosolv-fractionation process was applied to separa
Externí odkaz:
https://doaj.org/article/d5fa7f100b194844aa490ff75ce42dcb
Publikováno v:
Energies, Vol 13, Iss 2, p 352 (2020)
Ethanol organosolv fractionation combined with ball milling was conducted on three major agricultural residues: Rice husk (RH), rice straw (RS), and barley straw (BS). The highest lignin extraction yields of RH, RS, and BS were 55.2%, 53.1%, and 59.4
Externí odkaz:
https://doaj.org/article/8fe003b0a28043cbbda035fcbb9e9d55
Publikováno v:
Energies, Vol 12, Iss 9, p 1800 (2019)
For the effective utilization of rice husk, organosolv fractionation was investigated to separate three main components (glucan, xylose, and lignin) with low acid concentration. Reaction temperatures of 170–190 °C, ethanol concentrations of 50%–
Externí odkaz:
https://doaj.org/article/972d85232ecb469a8c3b246c6ca87e19
Publikováno v:
International Journal of Biological Macromolecules. 169:541-550
Genipin is a nontoxic natural cross-linker that was successfully used to prepare cross-linked enzyme aggregates (CLEAs) of Trametes versicolor laccase. The recovered activity of CLEAs was influenced by the co-solvent type, genipin concentration, cros
Autor:
Jinyoung Chun, Jin Hyung Lee, Ji Yeon Park, Seongseop Kim, Kyeong Keun Oh, Hayoung Park, Yang Mo Gu, Il-Seop Jang
Publikováno v:
Nanoscale Advances. 3:6965-6973
The valorization of inorganic silica components from rice husk has been considered an important research topic over the last few decades. However, owing to various problems, such as the difficulty in controlling precise morphological properties, comp