A PRODUCTION METHOD OF GRAPE JUICE HAVING THE EXTRACTION PROCESS OF GRAPE SEEDS

摘要

PURPOSE: A manufacturing method of grape juice is provided to return grape seed extract directly to grape juice manufacturing process using hot grape juice instead of ethanol as extraction solvent. CONSTITUTION: A grape juice is heat treated and extraction filtered during the process of grape juice attainment, and the grape seed is collected by centrifuging of rotating mixer tank of heat treatment step and heated for 10 minutes at 95-98deg C to extract grape polyphenol and effective component and used for grape juice filtering process. The heating temperature of the grape seed is done at 80-100deg C for 10-60 minutes to extract the grape seed and added to the grape juice filtering process.