HAYATI Journal of Biosciences
Vol. 12 No. 4 (2005): December 2005

The Potency of Dextranase from Arthrobacter sp. Strain B7 as Dental Plaque Removal

AFAF BAKTIR (Unknown)
NOOR CHOLIES ZAINI (Unknown)
UNTUNG MURDIYATMO (Unknown)
KUNTAMAN KUNTAMAN (Unknown)

Article Info

Publish Date
01 Dec 2009

Abstract

Dextranase of Arthrobacter sp. strain B7 (B7DEX enzyme) was characterized in this study. This enzyme hydrolyzed sucrose and dextran, but not other glucans (starch, nigeran, cellulose, -soluble glucan). It also hydrolyzed glucan from dental plaque with the activity of 7.38 +/- 66 U/ml, where the activity toward dextran was 31.88 +/- 1.24 U/ml. The enzyme exhibited the pH optimum of 7 and the temperature optimum of 50 0C. Its optimum stability was at pH 7 and 50 0C. The enzyme was inhibited by Fe3+, Cu2+, Zn2+, and Ag+, but not by the anionic detergent (SDS) and the nonionic detergent (Triton-X). The enzyme was activated by Ca2+, Na+, Mg2+, and saliva.

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Journal Info
HAYATI Journal of Biosciences
Website

Abbrev

hayati

Publisher

Institut Pertanian Bogor

Subject

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

Description

HAYATI Journal of Biosciences (HAYATI J Biosci) publishes articles and short communication in tropical bioscience fields such as development, biotechnology, biodiversity and environmental issues. HAYATI J Biosci covers wide range of all life forms topics including virus, microbes, fungi, plants, ...