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- W138891973 abstract "To prepare useful foods from Acanthopanax koreanum, extraction of major constituents by water and ethanol solutions were investigated Reflux extractions of 300 g of dried material of particle size less than 0.5 cm, were carried out in 7.5 L of water, or ethanol solutions (30 -95% v/v) for 9 hr at . The pH values of extracted solutions were 4.0-6.5. The Color b-value of extracted solutions increased as ethanol concentrations dropped and with longer extraction times. The amounts of material in extracts increased rapidly in the first 2-3 hr of extraction. The extract levels from 30-70% ethanol solutions were 0.27-0.47 g/100 g. The main free sugars of extract were sucrose, fructose and glucose. Eleutherosides were extracted rapidly (within 3 hr), and eleutheroside extraction was best in water or in 30-70% ethanol 95% ethanol solutions were less effective. The eleutherosides were extracted to 97% by water or 30-70% ethanol solutions after 3-5 hr. Acanthoic acid extraction was more affected by ethanol level than by extraction time water achieved only trace extinction. In summary, reflux extraction in 40-70% ethanol for 3-5 hr was adequate for the extraction of functional materials from Acanthopanax koreanum." @default.
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- W138891973 date "2007-01-01" @default.
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- W138891973 title "Extraction of Major Constituents from Acanthopanax koreanum Stems with Water and Ethanol Solutions" @default.
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