Question

Which of the following is maintained for optimum production of vinegar?
A. Anaerobic condition
B. Temperature of 650-degree Celsius
C. Aerobic condition
D. Microaerophilic condition

Answer 1

Vinegar is an aqueous solution that contains acetic acid as the primary constituent including water and other traces of chemicals, vitamins and flavouring agents. In vinegar, the residual ethanol content is less than one percent. It is obtained from the two-stage fermentation process. Microorganisms used in the fermentation of vinegar are species of Acetobacter and Gluconobacter, the former being better acid producers than the latter. Three different methods for vinegar production is the Orleans method, generator method, and submerged method.

Complete answer:
Option A- Anaerobic condition
In the first stage of fermentation, conversion of sugars into ethanol takes place due to the presence of yeast but we do not need to maintain it for long for vinegar production.
Option B- Temperature of 650-degree celsius.
The ideal temperature for optimum production of vinegar is 75 – 850 degree Fahrenheit so this option is wrong.
Option C- Aerobic condition
While in the second stage of fermentation, the ethanol formed after the product of the first stage is oxidized aerobically into acetic acid with the help of microorganisms such as Acetobacter. The presence of oxygen promotes the acceleration of the process. This condition must be maintained for optimum production of vinegar.
Option D- Microaerophilic condition
In this condition, the microorganisms require low oxygen concentration for growth. Optimal growth occurs in the presence of 5-10 percent oxygen but vinegar production requires more oxygen concentration.

Thus, the correct option is option C- Aerobic condition.

Note- Types of vinegar are white vinegar, apple cider vinegar, balsamic vinegar, cane vinegar, coconut vinegar, rice vinegar, date vinegar, distilled vinegar, potato vinegar, etc. Substrates of vinegar are wine, fruits, apple cider, musts, and malted barley. It is used to preserve and flavor food, used in cooking, lowers blood sugar level and cholesterol level in the body, etc. It is also used for treating skin problems and reduces belly fat.