Figure 5. ABTS radical scavenging activities. The result are presented as mean ± S.D. of three determinations. Small letters a to g: values denoted by different capital letters are significantly different at P < 0.05.
CONCLUSION
In Korea, against global warming, tropical fruits of geuk cultivation techniques have been studied. Geuks are nutritious fruits which have high concentration of fat-soluble antioxidative compounds such as carotenoids and tocopherol. In particular, a lot of α-tocopherol, lycopene and β-carotene are found in seed aril and pulp of geuk fruits. Geuk fruits have shown strong antioxidant activities from DPPH and ABTS methods. The seed aril extract have more potent antioxidant activities than pulp extract because seed aril have more lycopene and a-tocopherol, strong antioxidants. Pulp extract was contained more β-carotene but, the activity of β-carotene was more weak than lycopene and a-tocopherol. These properties and the potential use of geuk fruits as health functional food will be explored in future studies.
ACKNOWLEDGMENTS
This work was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0094017) and we gratefully acknowledge Dr. Ki-cheol Seong of Agricultural Research Center for Climate Change (Rural Development Administraion, Jeju, Korea) for donating geuk fruits.
Figure 5. ABTS radical scavenging activities. The result are presented as mean ± S.D. of three determinations. Small letters a to g: values denoted by different capital letters are significantly different at P < 0.05.CONCLUSIONIn Korea, against global warming, tropical fruits of geuk cultivation techniques have been studied. Geuks are nutritious fruits which have high concentration of fat-soluble antioxidative compounds such as carotenoids and tocopherol. In particular, a lot of α-tocopherol, lycopene and β-carotene are found in seed aril and pulp of geuk fruits. Geuk fruits have shown strong antioxidant activities from DPPH and ABTS methods. The seed aril extract have more potent antioxidant activities than pulp extract because seed aril have more lycopene and a-tocopherol, strong antioxidants. Pulp extract was contained more β-carotene but, the activity of β-carotene was more weak than lycopene and a-tocopherol. These properties and the potential use of geuk fruits as health functional food will be explored in future studies.ACKNOWLEDGMENTSThis work was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0094017) and we gratefully acknowledge Dr. Ki-cheol Seong of Agricultural Research Center for Climate Change (Rural Development Administraion, Jeju, Korea) for donating geuk fruits.
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