In vitro assessment of radiation effects on microbiological quality, color, antioxidant activities and sun protection factor of Coscinium fenestratum (Goetgh.) Colebr

Name: Sirilak Chookaew

Organization : Thailand Institute of Nuclear Technology (Public Organization)

Email : Sirilakchookaew@gmail.com

Name: Khemruji Khemthong

Organization : Thailand Institute of Nuclear Technology (Public Organization)

Name: Jarurattana Eamsiri

Organization : Thailand Institute of Nuclear Technology (Public Organization)

Name: Wachiraporn Pewlong

Organization : Thailand Institute of Nuclear Technology (Public Organization)

Name: Surasak Sajjabut

Organization : Thailand Institute of Nuclear Technology (Public Organization)

keyword: Coscinium fenestratum (Goetgh.) Colebr

ThaSH: Antioxidants

ThaSH: Plant extracts

ThaSH: Microbiology

ThaSH: Plant bioactive compounds

Abstract: The aim of the present study was to evaluate the effect of gamma rays on microbiological quality (total viable bacterial counts (TVC) and total yeast and mold counts (TYM)), color values (L*, a*, b*), Antioxidant activity (total phenolic content (Folin-ciocateau reagent assay), DPPH assay (1, 1-Diphenyl-2-picrylhydrazyl) and FRAP (ferric-ion reducing antioxidant potential)) and Sun Protection Factor (SPF) values of Coscinium fenestratum (Goetgh.) Colebr. Samples were exposed to irradiation at doses of 5, 10, 15 and 20 kGy before extracted with 60 percent ethanol then evaluated for their possessions compared to non-irradiated samples. Results showed that the amount of TYM of 5-20 kGy irradiated samples were reduced to standard level. Color values of irradiated samples were changes by decreasing of redness (a*) and lightness (L*) with increasing the irradiation doses. In term of antioxidant activities, total phenolic content and DPPH assay of irradiated samples were similar to non-irradiated samples, whereas the FRAP values were exhibited high antioxidant activities in irradiated samples. Furthermore the SPF values showed that gamma irradiation caused a slight increase at the dose 10 kGy compared to non-irradiated sample.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2020

Modified: 2024-10-08

Issued: 2024-10-08

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BibliograpyCitation : In the Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn in association, Thammasat University Faculty of Science and Technology. The Pure and Applied Chemistry International Conference 2020 (PACCON 2020) (FA25-30). Bangkok : Thammasat University

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