Determination of Functional Components in Grape Seeds by Ammonium Molybdate Spectrophotometry

Abstract

Abstract: A new method for deter mining oligomeric procyanidins by Ammonium Molybdate Spectrophotometry was studied.This basic reaction of oligomeric procyanidins with Ammonium molybdate to produce yellow ester molybdate would bepresented in a weak acid solution .The linear region was 5～110μg/ml, RSD=1.1%～1.3% and the recovery was 97.8%～102.5%. Thus the method was applied to determine oligomeric procyanidins to obtain a good result.

Key words: ammonium molybdate, grape seeds, oligomeric procyanidins, spectrometry

MA Ya-Jun, YANG Bing-Qin, LANG Hui-Yun. Determination of Functional Components in Grape Seeds by Ammonium Molybdate Spectrophotometry[J]. FOOD SCIENCE, 2003, 24(5): 135-137.

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Determination of Functional Components in Grape Seeds by Ammonium Molybdate Spectrophotometry

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