Flocculation properties of pectin in various suspensions

Pectin had a flocculating activity and its flocculating activities in various suspensions were investigated. Flocculating activity of pectin in a kaolin suspension was markedly stimulated by the addition of Al 3+ and Fe 3+ to the suspension. Optimum temperature for flocculating activity of pectin in...

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Bibliographic Details
Published in:Bioresource technology 2002-09, Vol.84 (3), p.287-290
Main Authors: Yokoi, H., Obita, T., Hirose, J., Hayashi, S., Takasaki, Y.
Format: Article
Language:English
Subjects:
activated carbon
Agronomy. Soil science and plant productions
aluminum
Aluminum - analysis
Biological and medical sciences
Bioreactors
Biotechnology - methods
Cations
cellulose
clay
Dose-Response Relationship, Drug
Flocculant
Flocculating activity
Flocculation
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
iron
Iron - analysis
kaolin
Pectin
pectins
Pectins - chemistry
Properties
Suspension
Temperature
Use of agricultural and forest wastes. Biomass use, bioconversion
yeasts
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Summary:Pectin had a flocculating activity and its flocculating activities in various suspensions were investigated. Flocculating activity of pectin in a kaolin suspension was markedly stimulated by the addition of Al 3+ and Fe 3+ to the suspension. Optimum temperature for flocculating activity of pectin in the kaolin suspension was around 30 °C and high flocculating activity was obtained when 30 mg/l of pectin and 0.2 mM Fe 3+ were added to the suspension. Other inorganic suspensions of activated carbon and acid clay were flocculated by pectin in the presence of Al 3+ or Fe 3+. Flocculation of organic suspensions such as cellulose and yeast by pectin occurred when 0.1–0.2 mM Fe 3+ was present in the suspensions.
ISSN:0960-8524
1873-2976
DOI:10.1016/S0960-8524(02)00023-8