Dogbevi, Maximin Koffi; Vachon, C et Lacroix, Monique 
ORCID: https://orcid.org/0000-0002-2042-4033
(2000).
Effect of gamma irradiation on the microbiological quality and on the functional properties of proteins in dry red kidney beans (Phaseolus vulgaris)
In: 11th International Meeting on Radiation Processing (IMRP-11), March 14-19, 1999, Melbourne, Australia.
Résumé
Gamma-irradiation was found to affect the physicochemical properties of dry red kidney beans. The highest dose used (8 kGy) significantly (P less than or equal to 0.05) modified the extent of deamidation, the number of sulfhydryl groups, as well as the solubility and the hydrophobicity of the protein. Deamidation, protein solubility and hydrophobicity all increased with the irradiation dose while the number of sulfhydryl groups was reduced by the treatment. Furthermore, irradiation also affected the outgrowth of natural filamentous fungi contaminants present on the dry beans. A dose of 1.5 kGy reduced the number of filamentous fungi by 2 log cycles immediately after treatment. However, the highest dose used (3 kGy) did not eliminate the filamentous fungi completely. Moreover, the filamentous fungi population was a lot less diversified on the irradiated samples. Species of Aspergillus sp. and Penicillium sp. were more abundant on the unirradiated beans while the beans irradiated at 3 kGy contained were predominantly infected by species of Rhizopus sp., Cladosporium sp. and Alternaria sp.
| Type de document: | Document issu d'une conférence ou d'un atelier |
|---|---|
| Informations complémentaires: | Radiation Physics and Chemistry (2000) 57(3-6):265-268 |
| Mots-clés libres: | - |
| Centre: | Centre INRS-Institut Armand Frappier |
| Date de dépôt: | 01 avr. 2024 19:15 |
| Dernière modification: | 01 avr. 2024 19:15 |
| URI: | https://espace.inrs.ca/id/eprint/14271 |
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