MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202531100781 A) filed by Dr Rajendra Prasad Central Agricultural University; Amitabh, Anupam; Jaiswal, Aman; and Kumar, Vishal on October 17, 2025, for A Two-Stage Fermenter For Vinegar Production.
Inventors include Amitabh, Anupam; Jaiswal, Aman; and Kumar, Vishal.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: The present invention is related to a two-stage fermenter for vinegar production from sugarcane juice and other fruit juices. the system comprises a first tank (108) for alcoholic fermentation under anaerobic conditions, equipped with an agitator (110) driven by a D.C motor setup, and covered with a top plate (109). juice is introduced through a hopper, and yeast is added via an inoculation port (101). after fermentation, the alcoholic solution is transferred through a nozzle (106) into a second tank (105) for acetic fermentation. Inside, the solution trickles over a roller assembly (102) inoculated with acetobacter, rotated by a worm gear connected to a motor. an airflow device (107) at the base regulates oxygen supply, critical for acetic acid production. the fermented vinegar is collected through an outlet (104). The system is supported by a frame stand (103). the fermenter achieves high efficiency and meets food safety standards.
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