Publication: Purification and Properties of β-1,4-Xylanases 2 and 3 from Aeromonas Caviae W-61
0
0
Issued Date
1993
Resource Type
File Type
application/pdf
ISSN
9168451
Other identifier(s)
2-s2.0-85004704460
Rights Holder(s)
Scopus
Bibliographic Citation
Bioscience, Biotechnology, and Biochemistry. Vol 57, No.10 (1993), p.1708-1712
Suggested Citation
Dung N.V., Kamio Y., Abe N., Kaneko J., Izaki K., Vetayasuporn S. Purification and Properties of β-1,4-Xylanases 2 and 3 from Aeromonas Caviae W-61. Bioscience, Biotechnology, and Biochemistry. Vol 57, No.10 (1993), p.1708-1712. doi:10.1271/bbb.57.1708 Retrieved from: https://hdl.handle.net/20.500.14740/7475
Abstract
A system of multiple xylanase enzymes was detected in the culture supernatant of Aeromonas caviae W-61. Among the detected xylanases, two β-1,4-xylanases (1,4-β-d-xylan xylanohydrolases, EC 3.2.1.8), designated xylanases 2 and 3, have been purified to homogeneity, by using ultrafiltration, ammonium sulfate precipitation, DEAE-Toyopearl 650M, CM-Sephadex C-50, and high-pressure liquid chromatographies. Endoxylanase 2 was a basic protein of 41 kDa, and endoxylanase 3 was an acidic protein of 58 kDa. The two xylanases had different pH and temperature optima, as well as thermal stabilities. The two purified enzymes had no activity on β-1,3-xylan, cellulose, carboxymethyl cellulose, or water-soluble starch. Various xylo-oligosaccharides such as xylotriose, xylotetraose, xylopentaose, xylohexaose, and higher oligosaccharides were formed, and only a small amount of xylobiose was detected as the hydrolysis products of oat spelt xylan by endoxylanase 2. Endoxylanase 3 released higher xylo-oligosaccharides as main products with very small amounts of xylotetraose and xylopentaose. © 1993, Japan Society for Bioscience, Biotechnology, and Agrochemistry. All rights reserved.