Preparation of Water and Ethanolic Extracts of Propolis and Evaluation of the Preparations

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概要

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• Propolis was extracted using water and various concentrations of ethanol as solvents. The extracts were investigated by measurement of absorption spectrum with a UV spectrophotometer, reversed phase-high pressure thin-layer chromatography and reversed phase-HPLC. Maximum absorption of all extracts was 290 nm, resembling flavonoid compounds, and the 80% ethanolic extract showed highest absorption at 290 nm. The most isosakuranetin, quercetin, and kaempferol were extracted from mixtures of propolis and 60% ethanol, while 70% ethanol extracted the most pinocembrin and sakuranetin, but 80% ethanol extracted more kaempferide, acacetin, and isorhamnetin from propolis. The 60 to 80% ethanolic extracts of propolis strongly inhibited microbial growth and 70 and 80% ethanolic extracts had the greatest antioxidant activity and 80% ethanolic extract strongly inhibited hyaluronidase activity.

• 社団法人日本農芸化学会の論文
• 1998-11-23

著者

• Park Yong

  State University Of Campinas College Of Food Engineering (unicamp)

• Ikegaki M

  School Of Pharmacy And Dentistry Of Alfenas Mg Bra

• IKEGAKI Masaharu

  State University of Campinas, College of Food Engineering (UNICAMP)

関連論文

• Suppression of Dioxin Mediated Aryl Hydrocarbon Receptor Transformation by Ethanolic Extracts of Propolis
• Biochemical Characteristics of Osmophilic Yeasts Isolated from Pollens and Honey
• Investigation of Flavonoid Aglycones in Propolis Collected by Two Different Varieties of Bees in the Same Region
• Preparation of Water and Ethanolic Extracts of Propolis and Evaluation of the Preparations

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