초록

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Abstract ▼ AI-Helper

To determine the properties for juice preperation of Black Omija (Schizandra nigra MAXIM.) and Omija (Schizandra chinensis BAILL.), yield of extraction, chromaticity and lightness, pH and soluble solid of the extract were investigated. When Schizandra nigra was extracted for 3 hr at $80^{\circ}...

To determine the properties for juice preperation of Black Omija (Schizandra nigra MAXIM.) and Omija (Schizandra chinensis BAILL.), yield of extraction, chromaticity and lightness, pH and soluble solid of the extract were investigated. When Schizandra nigra was extracted for 3 hr at $80^{\circ}C$ using 20% aqueous ethanol, the yield of extracts was highest. For the desirable chromaticity coordinates, the optimum extraction time and temperature of Schizandra nigra were 3 hr at $80^{\circ}C$. The lightness of the extract was low of the value when extraction time and temperature was long and high. The sugar content of the extract of Schizandra nigra was ranged between 2.0 and 2.6% Brix, which is lower than that of Schizandra chinensis. Although the pH of the extract from Schizandra nigra was a low in comparison with that of water extract the pH range was proper to maintain the stability of color of extract from the Schizandra chinensis.

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