Abstract：
:Oxygen radical absorbance capacity (ORAC) values showed that methanolic extracts of Albizia julibrissin foliage displayed antioxidant activity. High performance liquid chromatography (HPLC) and mass spectrometry (MS) techniques were utilized in the identification of the compounds. The analysis confirmed the presence of three compounds in A. julibrissin foliage methanolic extract: an unknown quercetin derivative with mass of 610 Da, hyperoside (quercetin-3-O-galactoside), and quercitrin (quercetin-3-O-rhamnoside). Fast performance liquid chromatography (FPLC) was employed to fractionate the crude A. julibrissin foliage methanolic extract into its individual flavonoid components. The flavonoids were quantified in terms of mass and their respective contribution to the overall ORAC value. Quercetin glycosides accounted for 2.0% of total foliage.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Lau CS,Carrier DJ,Beitle RR,Bransby DI,Howard LR,Lay JO Jr,Liyanage R,Clausen ECdoi
10.1016/j.biortech.2005.12.011subject
Has Abstractpub_date
2007-01-01 00:00:00pages
429-35issue
2eissn
0960-8524issn
1873-2976pii
S0960-8524(05)00586-9journal_volume
98pub_type
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