Ethanol is produced by grinding up a crop or plant, the sugar that can be converted from the crop or plant is then dissolved. Microbes such as bacteria and yeast feed on the sugar. This produces ethanol and carbon dioxide.

Beer, like any fermented food, is an immutably microbial product. Microbial activity is involved in every step of its production, defining the many sensory characteristics that contribute to final quality.

Fermentation bacteria are anaerobic, but use organic molecules as their final electron acceptor to produce fermentation end-products. Fermenting bacteria have characteristic sugar fermentation patterns, i.e., they can metabolize some sugars but not others. …

The fermenting microorganisms mainly involve L.A.B. like Enterococcus, Streptococcus, Leuconostoc, Lactobacillus, and Pediococcus [6] and yeasts and molds viz. Debaryomyces, Kluyveromyces, Saccharomyces, Geotrichium, Mucor, Penicillium, and Rhizopus species [7–10].

The main difference between these two is that they produce different items and are required for different needs. The lactic acid fermentation produces lactate molecules whereas alcoholic fermentation produces ethyl or ethanol molecules including carbon dioxide.

Disadvantages of fermentation are that production can be slow, the product is impure and needs to have further treatment and the production carries a high cost and more energy. IMPORTANCE OF FERMENTATION Fermentation is important to cells that don’t have oxygen or cells that don’t use oxygen because: 1.

It is advantageous as it is produced from a renewable resource (sugar from plants such as sugar cane) and could be seen as carbon neutral. It helps the economy as sugar cane can be grown in poorer, hotter climates. The negatives are that it is impure, and more steps are needed afterwards to purify the ethanol obtained.

Fermentation has a lower percentage yield and rate of reaction than the hydration of ethene. As it also has a higher rate of reaction, the hydration of ethene appears to be the better way to make ethanol.

The disadvantage is that anaerobic respiration produces lactic acid, which, when itbuilds up in muscles that are overworked, causes soreness and may even lead to cramps. Anaerobic fermentation does not involve or benefit from the additional ATP produced by the citric acid cycle or electron transport chain.

Ethanol made by fermentation can also be used as a fuel. It is a renewable fuel because the plants that make the sugar for the process can be grown very quickly. Ethanol that is used in industry can also be made from ethene. These fossil fuels cannot be replaced and are a finite resource.

methane

Yes, cotton is a renewable resource because it can be planted and harvested year after year.

Finite materials are resources that cannot be created or produced, once the original stores are depleted, or those that are used up at a faster rate than nature can replenish them.

Essentially, a renewable resource, such as solar energy, wind energy, and geothermal pressure, has an endless supply . Other resources are considered renewable even though some time or effort must go into their renewal (e.g., wood, oxygen, leather, and fish). Most precious metals are renewable also.

“Plastic are mostly derived from finite resources like petroleum. The materials (known as feedstocks) used to create plant-based plastics generally come from agricultural products. The cultivation of these materials can cause large scale issues like habitat fragmentation and biodiversity loss.