Physicochemical properties of dry red kidney bean proteins and natural microflora as affected by gamma irradiation

Authors
Dogbevi, MK Vachon, C Lacroix, M
Citation
Mk. Dogbevi et al., Physicochemical properties of dry red kidney bean proteins and natural microflora as affected by gamma irradiation, J FOOD SCI, 64(3), 1999, pp. 540-542
Citations number
27
Categorie Soggetti
Food Science/Nutrition
Journal title
JOURNAL OF FOOD SCIENCE
ISSN journal
00221147 → ACNP
Volume
64
Issue
3
Year of publication
1999
Pages
540 - 542
Database
ISI
SICI code
0022-1147(199905/06)64:3<540:PPODRK>2.0.ZU;2-1
Abstract
Gamma gamma-irradiation affected (p less than or equal to 0.05) the physico chemical properties of dry red kidney beans (Phaseolus vulgaris). Protein d eamidation, solubility and hydrophobicity increased and the number of sulfh ydryl groups was reduced after irradiation. Irradiation also affected the o utgrowth of natural mold contaminants. A dose of 1.5 kGy reduced the number of molds by 2 log cycles immediately after the treatment. However, incompl ete inhibition was observed with the highest irradiation dose (3 kGy). Spec ies of Aspergillus and Penicillium. were completely inhibited at 1.5 and 3 kGy respectively.