Potensi Enzim Dekstranase dari Arthrobacter SP Galur B7 sebagai Penghambat Plak Gigi  

Oleh:

Kuntaman ; Untung, Murdiyatmo ; Zaini, Noor Cholies ; Afaf, Baktir

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Hayati Journal of Biosciences vol. 12 no. 4 (Dec. 2005), page 162-166.
Topik: ENZIM; Penghambat Plak Gigi; Enzim Dextranase
Fulltext: 60.pdf (90.47KB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: HH13.7 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Dextranase of Anthrobacter sp. strain B7 (B7DEX enzyme) was characterized in this study, This enzym hydrolyzed sucrose and dextran, but not other glucans (starch, nigeran, cellulose, B-soluble glucan. it also hydrolyzed glucan from dental plaque with the activity of 7.38 + /-0.66 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 Celcius Degree. Its optimum stability was at pH 7 and 50 Celcius Degree. The enzyme was inhibited by Fe 3+, Cu 2+, Zn 2+ and Ag +, but not by the anionic detergent (SDS) and the nonionic detergent (Triton - X). The enzyme was activated by Ca 2+, Na+, Mg 2+ and saliva.

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