Earticle

초록

영어

Due to the structural variability of hemicelluloses, a variety of enzymes is involved in their efficient degradation. The complete hydrolysis of hemicellulosic biomass can be achieved via the cooperative reactions of various enzymes including the main chain-cleaving endo- and/or exo-hydrolases and the side chain-removing accessory enzymes. For example, Thermotoga spp. are well-known hyperthermophiles which possess a number of carbohydrate-active enzyme genes, such as endo-xylanase, exo- xylosidase, α-L-arabinofuranosidase, and acetyl xylan esterase, in their genomes. Endo-xylanase can randomly cleave the main chain of xylans to produce a mixture of xylooligosaccharides, while the other accessory enzymes can remove each modified linkages in xylans to release xyloses, arabinoses or acetates. Meanwhile, some Bacillus spp. are known to share different sets of exo- and endo-hydrolase genes for the efficient degradation of arabinan polymers. Due to their unique action patterns, these series of enzymes act in concert to catalyze specific hydrolysis of various hemicellulosic polymers, including xylans and arabinans. In the present study, it is proposed that the simultaneous enzymatic treatments work synergistically and produce much higher amount of pentose sugars from various polymers. In addition, some versatile step-wise enzymatic processes are suitable for the cost-effective production of various oligosaccharide derivatives.

키워드

저자

• Tae-Jip KIM [ Chungbuk National University, Cheongju, Korea 361-763. ]
• Myoung-Uoon JANG [ Chungbuk National University, Cheongju, Korea 361-763. ]
• Jung-Hyun KANG [ Chungbuk National University, Cheongju, Korea 361-763. ]
• Jung-Mi PARK [ Chungbuk National University, Cheongju, Korea 361-763. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576