novel flocculant biopolymer produced by Pestalotiopsis sp. KCTC 8637P

A white rot fungus was isolated from rolled leaves and identified as Pestalotiopsis sp. KCTC 8637P. It produced a flocculant biopolymer. A flocculant was partially purified from the culture broth by series of precipitations with 95% ethanol and named as Pestan. The components of Pestan were consiste...

Full description

Saved in:
Bibliographic Details
Published in:Biotechnology letters 1996-12, Vol.18 (12), p.1459-1464
Main Authors: Kwon, G.S, Moon, S.H, Hong, S.D, Lee, H.M, Kim, H.S, Oh, H.M, Yoon, B.D
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biology of microorganisms of confirmed or potential industrial interest
Biotechnology
food microbiology
food processing
Fundamental and applied biological sciences. Psychology
Mission oriented research
Physiology and metabolism
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A white rot fungus was isolated from rolled leaves and identified as Pestalotiopsis sp. KCTC 8637P. It produced a flocculant biopolymer. A flocculant was partially purified from the culture broth by series of precipitations with 95% ethanol and named as Pestan. The components of Pestan were consisted of glucose: glucosamine: glucuronic acid: rhamnose with a approximately molar ratio of 100:3.5:1.6:1.3. In kaolin suspension(final concentration was 4,800 mg/l), the highest flocculating activity was attained at the biopolymer flocculant concentration of 1 mg/l. The flocculating activity was observed most highest by the addition of cationic solutions, especially 8mM CaCl2.2H2O or 8mM FeCl3. The thermal stability of Pestan was sustained up to 70 degrees C.
ISSN:0141-5492
1573-6776
DOI:10.1007/BF00129355