4-6 February 2019
Centara Grand at Central Ladprao
Asia/Bangkok timezone
Deadline for full paper revision: 21 May 2019.

Effects of Gamma Irradiation on Antioxidant Properties and Microbial Contamination in $\textit{Boletus griseipureus}$ Corner.

4 Feb 2019, 14:50
1h
Centara Grand at Central Ladprao

Centara Grand at Central Ladprao

Chatuchak, Bangkok 10900, Thailand
Poster Agriculture and Food Poster 1

Speaker

Ms Sirilak Chookaew (Thailand Institute of Nuclear Technology (Public Organization))

Description

The aim of this research is to investigate effects of gamma irradiation on antioxidant properties and microbial contaminants in Boletus griseipureus. Samples were ground into powder and later subject to gamma irradiation at 2.5, 5, 7.5 and 10 kGy. The non-irradiated and irradiated samples were then analyzed for their microbial contamination and antioxidant properties such as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, ferric reducing antioxidant power (FRAP), total phenolic content, beta glucan content and total triterpenoids. Results showed that microbial contamination decreased with increasing dose. In terms of antioxidant properties, gamma irradiation did not result in significant effects on FRAP, total phenolic content, beta glucan content, and total triterpenoids. However, at 10 kGy of gamma irradiation, DPPH radical scavenging notably increased (p < 0.05).

Primary author

Ms Sirilak Chookaew (Thailand Institute of Nuclear Technology (Public Organization))

Co-authors

Ms Wachiraporn Pewlong (Thailand Institute of Nuclear Technology (Public Organization)) Mr Surasak Sajjabut (Thailand Institute of Nuclear Technology (Public Organization)) Ms Jaruratana Eamsiri (Thailand Institute of Nuclear Technology (Public Organization)) Ms Piyanuch Orpong (Thailand Institute of Nuclear Technology (Public Organization))

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