NOVELTY - Obtaining stable acidic pectinases involves adding acidic pectinase in fermentation broth to obtain fermented hydrolyzate. The fermented hydrolyzate is then passed through Celite (RTM: Filter aid) diatomite under pressure of 0.14-0.24 MegaPascals to collect fermented crude enzymatic solution. The fermented crude enzymatic solution is then treated by high intensity pulsed electric field (HPEF) to pasteurize the fermented crude enzymatic solution.    USE - Method for obtaining stable acidic pectinases (claimed).    ADVANTAGE - The method enables to obtain stable acidic pectinases in a simple, convenient, cost-effective and environment-friendly manner.    DETAILED DESCRIPTION - Obtaining stable acidic pectinases involves adding acidic pectinase in fermentation broth to obtain fermented hydrolyzate. The fermented hydrolyzate is then passed through Celite (RTM: Filter aid) diatomite under pressure of 0.14-0.24 MegaPascals to collect fermented crude enzymatic solution. The fermented crude enzymatic solution is then treated by high intensity pulsed electric field (HPEF) to pasteurize the fermented crude enzymatic solution. The HPEF crude enzyme solution is then passed through microfiltration membrane by performing multiple ultrafiltration cycles under certain conditions to obtain concentrated crude enzyme solution. The concentrated enzyme solution is mixed with 0.5-10 wt.% stabilizer, where the pH of enzymatic mixture is adjusted using lactic acid. The concentrated enzyme solution through sterilized filtration membrane to obtain a stable acidic pectinases. The stabilizer comprises pectin hydrolyzate, herbal extracts, modified dietary fiber, 10-15 trehalose, natural antioxidants, polyol, metal chlorides, and bovine serum albumin. The method for preparing stabilizer involves first dissolving modified dietary fiber in deionized water at room temperature for 4-6 hours, and then secondly at 40-60 degrees C for 20-30 minutes under incubation to fully dissolve modified dietary fiber in deionized water. Pectin hydrolyzate, herbal extracts, trehalose, polyols, metal chlorides are further added to the fully dissolve modified dietary fiber solution under stirring condition, followed by adding bovine serum albumin, natural antioxidants to obtain a stabilizer.