Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.foodres.2011.05.032
Title: Antioxidant and tyrosinase inhibitory activities of methanol extracts from Magnolia denudata and Magnolia denudata var. purpurascens flowers
Authors: Jo, Y.-H.
Seo, G.-U.
Yuk, H.-G. 
Lee, S.-C.
Keywords: Antioxidant
Flower
Magnolia denudata
Tyrosinase inhibitory activity
Issue Date: Jul-2012
Citation: Jo, Y.-H., Seo, G.-U., Yuk, H.-G., Lee, S.-C. (2012-07). Antioxidant and tyrosinase inhibitory activities of methanol extracts from Magnolia denudata and Magnolia denudata var. purpurascens flowers. Food Research International 47 (2) : 197-200. ScholarBank@NUS Repository. https://doi.org/10.1016/j.foodres.2011.05.032
Abstract: Methanolic extracts of white colored (Magnolia denudata, WME) and violet colored (M. denudata var. purpurascens, VME) flowers were prepared, and their antioxidant activities were evaluated by total phenolic contents (TPC), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity (RSA), 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) RSA, and reducing power (RP). TPC of WME and VME were 85.80 and 80.96. mg/g gallic acid equivalents, respectively. DPPH RSA and ABTS RSA of WME and VME at 1. mg/mL concentration were 87.74 and 75.05, and 88.24 and 85.98%, respectively. In the case of RP, there was no significant (P. < 0.05) difference between WME (1.094) and VME (1.081). Tyrosinase inhibitory activities of WME and VME were 17.48% and 8.63%, respectively. © 2011 Elsevier Ltd.
Source Title: Food Research International
URI: http://scholarbank.nus.edu.sg/handle/10635/75588
ISSN: 09639969
DOI: 10.1016/j.foodres.2011.05.032
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