EUROPEAN JOURNAL OF
PHARMACEUTICAL AND MEDICAL RESEARCH

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

European Journal of Pharmaceutical and Medical Research (EJPMR) has indexed with various reputed international bodies like : Google Scholar , Indian Science Publications , InfoBase Index (In Process) , SOCOLAR, China , Research Bible, Fuchu, Tokyo. JAPAN , International Society for Research activity (ISRA) , Scientific Indexing Services (SIS) , Polish Scholarly Bibliography , Global Impact Factor (GIF) (Under Process) , Universal Impact Factor , International Scientific Indexing (ISI), UAE  , Index Copernicus , CAS (A Division of American Chemical Society) USA (Under Process) , Directory of Open Access Journal (DOAJ, Sweden, in process) , UDLedge Science Citation Index , CiteFactor , Directory Of Research Journal Indexing (DRJI) , Indian citation Index (ICI) , Journal Index (JI, Under Process) , Directory of abstract indexing for Journals (DAIJ) , Open Access Journals (Under Process) , Impact Factor Services For International Journals (IFSIJ) , Cosmos Impact Factor , Jour Informatics (Under Process) , Eurasian Scientific Journal Index (ESJI) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Pubmed Database [NLM ID: 101669306] (Under Process) , IP Indexing (IP Value 2.40) , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , Scope Database , Academia , 

 ISSN 2394-3211

Impact Factor: 7.065

 ICV - 79.57

Abstract

FRAP RADICAL SCAVENGING CAPACITY OF GREEN TEA, OOLONG TEA, AND JEJU FERMENTED TEA BY PRODUCED PRODUCTS

Man Kyu Huh*

ABSTRACT

Tea (Camellia L.) is one of oldest, non-alcoholic and caffeine-containing beverage or medicine in world community. This study determined antioxidant activity in terms of the ferric reducing antioxidant power (FRAP) of commercial tea products, i.e., green tea, oolong tea, black tea, and Jeju fermented tea. Jeju fermented tea was showed the highest inhibition activity of FRAP among four groups. There was a significant difference among all concentration levels (p < 0.05 and 0.001). When the BHA used as a control, relative FRAP scavenging activities of green tea, Oolong tea, black tea, and fermented tea were 77.4%, 83.7%, 88.7%, and 104.2, respectively. The antiradical activity analysis permitted classifying tea extracts in medium activity group. The sample concentration providing 0.5 of absorbance (IC50) of green tea, Oolong tea, black tea, and fermented tea were 61.4 μg/ml, 52.1 μg/ml, 57.9 μg/ml, and 48.5 μg/ml, respectively. The mode of inhibition of the tea extracts against FRAP was competitively inhibited FRAP by Lineweaver–Burk plots. In the processing of tea, fermentation plays an important role in determining the quality of Jeju tea.

Keywords: Ferric reducing antioxidant power (FRAP), Jeju fermented tea, Lineweaver–Burk plots.


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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing Scholar Article Journal Index (SAJI) International Scientific Indexing ( ISI ) Scope Database Academia