RAPID METHOD FOR ESTIMATION OF AMYLOSE IN MAIZE STARCHES

Authors
KNUTSON CA GROVE MJ
Citation
Ca. Knutson et Mj. Grove, RAPID METHOD FOR ESTIMATION OF AMYLOSE IN MAIZE STARCHES, Cereal chemistry, 71(5), 1994, pp. 469-471
Citations number
6
Categorie Soggetti
Food Science & Tenology","Chemistry Applied
Journal title
Cereal chemistry → ACNP
ISSN journal
00090352
Volume
71
Issue
5
Year of publication
1994
Pages
469 - 471
Database
ISI
SICI code
0009-0352(1994)71:5<469:RMFEOA>2.0.ZU;2-3
Abstract
A rapid solubilization procedure for maize starch, using low-temperatu re gelatinization in 3 M CaCl2 in combination with 15-30 min of sonica tion in an iodine-dimethyl sulfoxide solution at a temperature of 65-7 0-degrees-C makes it possible to estimate amylose content of maize sam ples in less than 1 hr. Results obtained by this technique are equival ent to those obtained by conventional thermal dissolution of starch in iodine-dimethyl sulfoxide, which requires overnight heating to obtain complete solubilization.