TY - JOUR
T1 - Effect of gamma irradiation for hygienic long-term storage on biological activity of Teucrium veronicoides
AU - Park, Hye Jin
AU - Park, Ki Tae
AU - Cho, Young Je
N1 - Publisher Copyright:
© 2017, Korean Society of Food Science and Nutrition. All rights reserved.
PY - 2017/5
Y1 - 2017/5
N2 - The purpose of this study was to examine the biological activities of gamma-irradiated Teucrium veronicoides. In photostimulated luminescence analysis, non-irradiated sample showed lower than 700 photon counts (PCs), whereas irradiated (5 and 10 kGy) samples showed higher than 700 PCs. The thermoluminescence ratio of non-irradiated samples was less than 0.1, whereas the values of irradiated samples were greater than 0.1. Electron spin resonance analysis was performed confirmed for irradiation identification. The total phenolic contents of hot-water and 50% ethanol extracts were higher than those values after irradiation at 10 kGy. Regarding 1,1-diphenyl-2-picrylhydrazyl radical inhibitory activity, 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity, antioxidant protection factor, thiobarbituric acid reactive substance inhibitory activity as antioxidant test and xanthine oxidase inhibitory activity, the effect of gamma irradiation had on significant effects. On the other hand, α-amylase inhibitory activity of 10 kGy-irradiated hot-water extract was 23.6% higher than that of the non-irradiated sample. Thus, gamma irradiation could be used for the long-term storage of Teucrium veronicoides.
AB - The purpose of this study was to examine the biological activities of gamma-irradiated Teucrium veronicoides. In photostimulated luminescence analysis, non-irradiated sample showed lower than 700 photon counts (PCs), whereas irradiated (5 and 10 kGy) samples showed higher than 700 PCs. The thermoluminescence ratio of non-irradiated samples was less than 0.1, whereas the values of irradiated samples were greater than 0.1. Electron spin resonance analysis was performed confirmed for irradiation identification. The total phenolic contents of hot-water and 50% ethanol extracts were higher than those values after irradiation at 10 kGy. Regarding 1,1-diphenyl-2-picrylhydrazyl radical inhibitory activity, 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity, antioxidant protection factor, thiobarbituric acid reactive substance inhibitory activity as antioxidant test and xanthine oxidase inhibitory activity, the effect of gamma irradiation had on significant effects. On the other hand, α-amylase inhibitory activity of 10 kGy-irradiated hot-water extract was 23.6% higher than that of the non-irradiated sample. Thus, gamma irradiation could be used for the long-term storage of Teucrium veronicoides.
KW - Antioxidative activity
KW - Biological activities
KW - Gamma irradiated-treatment
KW - Long-term Storage
KW - Teucrium veronicoides
UR - http://www.scopus.com/inward/record.url?scp=85020379568&partnerID=8YFLogxK
U2 - 10.3746/jkfn.2017.46.5.581
DO - 10.3746/jkfn.2017.46.5.581
M3 - Article
AN - SCOPUS:85020379568
SN - 1226-3311
VL - 46
SP - 581
EP - 591
JO - Journal of the Korean Society of Food Science and Nutrition
JF - Journal of the Korean Society of Food Science and Nutrition
IS - 5
ER -