Gamma radiation application to rice: Reduced glycemic index in relation to modified carbohydrate observed in FTIR spectra.
Amylose
Gamma radiation
Glycemic index
Rice
Journal
Current research in food science
ISSN: 2665-9271
Titre abrégé: Curr Res Food Sci
Pays: Netherlands
ID NLM: 101771059
Informations de publication
Date de publication:
2021
2021
Historique:
received:
22
10
2020
revised:
03
12
2020
accepted:
08
12
2020
entrez:
7
1
2021
pubmed:
8
1
2021
medline:
8
1
2021
Statut:
epublish
Résumé
This study was conducted with a popular, low price Bangladesh rice variety BRRI Dhan 29 with a view to possible carbohydrate modification targeting lower glycemic index using gamma radiation application. Irradiation process (5 and 10 kGy at a dose rate of 9.74kGy/h) altered amylose content, amylose/amylopectin ratio, swelling power, and solubility index. FTIR spectroscopy confirmed the changed molecular structures due to radiation application. Treatment with a dose of 5 and 10kGy caused increased amylose and amylose/amylopectin ratio significantly (p < 0.02). The highest amylose content was found in 10 kGy irradiated rice (30.20%) compared to unirradiated one (17.27%). Gamma radiation caused decreased swelling and increased water solubility in rice powder. These features of carbohydrate amendment in irradiated rice lead to reduced glycemic index as investigated with the in vivo experiments. Therefore, this study suggests gamma-irradiated rice (10kGy) is beneficial for diabetic subjects keeping lower blood glucose levels.
Identifiants
pubmed: 33409502
doi: 10.1016/j.crfs.2020.12.002
pii: S2665-9271(20)30044-7
pmc: PMC7773856
doi:
Types de publication
Journal Article
Langues
eng
Pagination
11-17Informations de copyright
© 2020 The Author(s).
Déclaration de conflit d'intérêts
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Références
Braz J Microbiol. 2008 Oct;39(4):787-91
pubmed: 24031308
Food Chem. 2013 Jan 15;136(2):742-9
pubmed: 23122122
J Agric Food Chem. 2009 Apr 22;57(8):3210-6
pubmed: 19278227
Carbohydr Polym. 2015 Jul 10;125:35-44
pubmed: 25857957
Eur J Nutr. 2015 Dec;54(8):1281-5
pubmed: 25637395
Am J Clin Nutr. 1992 Dec;56(6):1034-6
pubmed: 1442654
J Food Sci. 2009 Jun;74(5):C353-61
pubmed: 19646027
Carbohydr Polym. 2019 Sep 1;219:251-260
pubmed: 31151523
Eur J Clin Nutr. 2000 May;54(5):380-5
pubmed: 10822284
Eur J Clin Nutr. 1992 Oct;46 Suppl 2:S33-50
pubmed: 1330528
Am J Clin Nutr. 1991 Nov;54(5):846-54
pubmed: 1951155
Am J Clin Nutr. 1989 Feb;49(2):337-44
pubmed: 2644803