Effects of extractant on the practical yield of β-carbonyl alkaloids from the bark of various species of the genus Elaeagnus L.
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The effects of different extractants and extraction regimes on the practical yields of total β-carbonyl alkaloids from raw material from Elaeagnus angustifolia L., E. multiflora Thunb., and E. argentea Pursh. were studied. An extractant - a mixture of solvents with different polarities, i.e., chloroform and ethanol - was selected and the optimum extraction conditions were identified: an extraction temperature of 40°C, a loading density of (ρ) of 0.5 g/cm3, a grinding level (D) of 1 – 3 mm, and a raw material:extractant ratio (m c:m e) of 1:30 by weight. These results lead to the possibility of exhaustive extraction of alkaloids from raw material from Elaeagnus L.
Key wordsExtractants β-carbonyl alkaloids Eleagnus oleaster
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