Effects of electron beam irradiation on the bioactive components of goji-berry

The goji-berry (Lycium barbarum) is an oval-shaped orange-red fruit with a slightly sweet flavor. This berry has a high antioxidant potential and presents interesting nutritional and therapeutic properties. Irradiation is a safe method that has long used to reduce the microbiological contamination o...

Full description

Saved in:
Bibliographic Details
Published inRadiation physics and chemistry (Oxford, England : 1993) Vol. 179; p. 109144
Main Authors Rodrigues, Flavio Thihara, Ramos Koike, Amanda C., Galo da Silva, Pamela, Negrão, Bianca Guimarães, Matias de Alencar, Severino, Filho, Jorge Mancini, Villavicencio, Anna Lucia C.H.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.02.2021
Elsevier BV
Subjects
Antioxidant activity
Antioxidants
Assaying
Biological activity
Dehydrated food
Dehydration
Electron beams
Electron irradiation
Food irradiation
Food safety
goji-Berry
Lycium barbarum
Oranges
Phenols
Scavenging
Food safety
Antioxidant activity
Lycium barbarum
goji-Berry
Food irradiation
Online AccessGet full text

Cover

More Information
Summary:The goji-berry (Lycium barbarum) is an oval-shaped orange-red fruit with a slightly sweet flavor. This berry has a high antioxidant potential and presents interesting nutritional and therapeutic properties. Irradiation is a safe method that has long used to reduce the microbiological contamination of dried and dehydrated food products. This study aimed to evaluate the irradiation effects on the bioactive compounds of goji berries by irradiating samples with an electron beam at doses of 2.5, 5.0, 7.5, and 10.0 kGy. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity and oxygen radical absorbance capacity (ORAC) were assessed by analyzing the hydroalcoholic extracts. The total phenolic compounds determined by the Folin-Ciocalteu assay. Doses up to 10.0 kGy did not significantly affect the antioxidant activity in the DPPH assay, and electron beam irradiation improved the total antioxidant activity of the samples in ORAC, as well as a total flavonoid and phenolics assays. •Radiation treatments up to 10.0 kGy did not affect DPPH scavenging activity.•The irradiated samples at 10.0 kGy showed total flavonoids results higher than non-irradiated.•ORAC results had a gradual decreased at doses higher than 5.0 kGy.•Electron beam treatment has beneficial effects on the goji-berry irradiated samples.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2020.109144