Plant Design Report
Topics: Vinegar, Ethanol, Acetic acid, Carbon dioxide, Oxygen, Yeast / Pages: 5 (1080 words) / Published: Jan 19th, 2011




(Production of Vinegar from Banana Peels)

Submitted to:
Engr. Caesar P. Llapitan

Submitted by:
Balod, Marie Paz
Edraira, Marie Grace
Jurado, Orencio III
ChE - V

Process Description

Vinegar Making from Banana Peelings

I. Raw Materials

For every kilogram of banana peels (Cavendish or saba), add 170 g of sugar, 225 g vinegar (starter liquor), 0.879 g bakers yeast, 907 g water, and 7.05 g ammonium sulfite.

II. Procedure

Vinegar making is a fermentation of sugar into acetic acid. This fermentation for vinegar production from banana peelings would make use of the stored sugar or starch in the banana peels.

First, the banana peelings are collected and washed with tap water to remove any intact dirt. Rotary knife cutter is used to shred the banana peels. Water is added and these are then boiled in a vat at 82°C. The peelings are mashed and filtered using an extractor. Ammonium sulfite is then added which serves as a reducing agent, and also sugar is added. The mixture is then allowed to cool. A pinch of bakers yeast is added for the fermentation to proceed. It is allowed to ferment for 8 days. Its acetic acid content will be 10 %. A cup of vinegar as a starter liquor is added for further fermentation. It is allowed to ferment for 27 days. This time, its acetic acid content will be about 4-6%. The product undergoes filtration to remove precipitates. After which it is subjected to boiling at about 65 - 70°C to avoid the growth of microorganisms.

Finally, the product is then stored in a holding tank ready for bottling and packaging.

III. Environmental Constraints

The wastes in the production of vinegar are suspended solids from backwashing the filter press, dead yeast, and carbon dioxide.

Carbon dioxide is absorbed using water. Dead yeast will be collected from the yeast tub and can be used as a fertilizer.

The suspended solids are not environmental hazards

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