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Total sugar

Soluble sugar was determined by high performance liq-uid chromatography (Shimadzu, LC-10A) equipped with NH2P-50 column (4.6 mm diam. ¡Á 250 mm) and RI detector.11 The column was packed with SUS 316. The mobile phase was acetonitrile: water = 75:25 at a flow rate of 1.0 ml min−1 and injection volume is 20 l as described by Ajlouni et al.12 A 20-g sample from ten ginseng roots was homogenized with 20 ml of 75% acetonitrile. The homogenate was centrifuged at 12 000 ¡Á g for 20 min. The supernatant was taken as sample to measure the sugar content. Standard solu-tions of fructose, glucose and sucrose were employed at a concentration of 5 mg ml−1. Final results were expressed as mg g−1 fresh weight.
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Total sugar
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Soluble sugar was determined by high performance liquid chromatography (Shimadzu, LC-10A) equipped with NH2P-50 column (4.6 mm diam. ¡Á 250 mm) and RI detector. The column was packed with SUS 316¡£
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The mobile phase was acetonitrile: water = 75:25 at a flow rate of 1.0 ml min−1 and injection volume is 20 l as described by Ajlouni et al.
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A 20-g sample from ten ginseng roots was homogenized with 20 ml of 75% acetonitrile. The homogenate was centrifuged at 12 000 ¡Á g for 20 min. The supernatant was taken as sample to measure the sugar content.
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Standard solutions of fructose, glucose and sucrose were employed at a concentration of 5 mg ml−1. Final results were expressed as mg g−1 fresh weight.
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