Pasting, swelling and solubility properties of UV initiated starch-graft-poly(AA)

UV-initiated graft copolymerization of sago starch with acrylic acid (AA) at low level (2.5%, 5%, 7.5% and 10% w/w) was investigated. The UV curing technique and procedure was found to successfully produce starch-graft-poly(acrylic acid) [S-g-poly(AA)]. The carboxyl group content was found to increa...

Full description

Saved in:
Bibliographic Details
Published in:Food chemistry 2005-06, Vol.91 (2), p.203-211
Main Authors: Lee, J.S., Kumar, R.N., Rozman, H.D., Azemi, B.M.N.
Format: Article
Language:English
Subjects:
acrylic acid
Biological and medical sciences
biopolymers
composite polymers
Food industries
food processing
food quality
Fundamental and applied biological sciences. Psychology
modified starch
pasting properties
polymerization
sago
solubility
Starch and starchy product industries
swelling (materials)
ultraviolet radiation
viscosity
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:UV-initiated graft copolymerization of sago starch with acrylic acid (AA) at low level (2.5%, 5%, 7.5% and 10% w/w) was investigated. The UV curing technique and procedure was found to successfully produce starch-graft-poly(acrylic acid) [S-g-poly(AA)]. The carboxyl group content was found to increase with increasing % of monomer. Rapid visco-analyzer (RVA) pasting profile, swelling and solubility of the samples were studied. UV irradiation of sago starch (control) results in high pasting temperature, high peak viscosity and high setback, besides retarding swelling and solubility as compared to the native untreated starch ( p
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2003.08.032