PROCESS FOR PREPARING APPLE VINEGAR USING TWO-STAGE FERMENTATION

摘要

PURPOSE: A process for preparing apple vinegar using two-stage fermentation is provided, thereby preparing the apple vinegar having a large quantity of organic acids, particularly malic acid, free amino acids and copper, iron, potassium and sodium. CONSTITUTION: A process for preparing apple vinegar using two-stage fermentation comprises the steps of: pulverizing apples to extract apple juice; inoculating Saccharomyces cerevisiae R12 to remaining apples and culturing it; alcohol fermenting the apple juice, inoculating Acetobacter sp. PA97 to the alcohol fermented apple juice, and culturing it to prepare a seed microorganism solution; and inoculating the seed microorganism solution to the Saccharomyces cerevisiae R12 cultured medium and acetic acid fermenting it.