Determination of total content of flavonoids in dried and fresh hawthorn leaves and flowers
published by Tishreen University
in 2017
in Chemistry
and research's language is
العربية
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Abstract in English
This study was carried out to determine the total content of flavonoids of dried and
fresh hawthorn flowers and leaves in water and hydroalcolic extracts. The method of cold
and hot maceration was used to prepare these extracts. The active compounds which were
found in these extracts were detected by many chemical reactions. The results of these tests
showed that the extracts contain: phenols, flavonoids, and saponins.The total content of
flavonoids was determined using spectrophotometric methods by forming complex with
aluminum chloride and measurement absorbance at 510nm, it has been shown that quantity
of flavonoids in dried samples ranges from 0.16 to 1%, while it's quantity in fresh samples
0.026- 0.18%.
References used
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MATOES, R. G. Antioxidant compounds in hawthorn fruits (Crataegus spp.) of Mexico. Revista Mexicana de biodiversidad, 84, 2013, 1298-1304
TASSEL,C.M; KINGSTON, R; GILROY, D; LEHANE, M; FUREY, A. Hawthorn (crataegus spp. ) in the treatment of cardiovascular disease. Pharmacogn Rev 4(7) , 2010, 32-41, 11