Question

Fermentation can enhance or alter nutritive and health-modulating properties of food constituents. T F

Justify:

The only mechanism microbes use to cause food spoilage is related to the growth of these microbes and their active metabolism of food components T F   

Justify:

People are not a major source of microbial contamination in the processing environment

T F Justify:

Molds are important for recycling dead plant and animal remains in nature they do not attack a wide variety of foods and other materials useful to humans. T F Jusify

indications of microbial food spoilage vary with the microbe(s) involved and the time course of spoilage. T F

Justify:

Answer 1

Answer:-

1. Fermentation can enhance or alter nutritive and health-modulating properties of food constituents. This statement is True. The reason being is that most of the species present inside the food (fermented) are genetically linked to probiotic strains. These fermented foods involves in breaking down of food present in the gut by the use of enzymatic reaction that takes place. Microbes present in fermented food helps in enhancing the nutritive value and health modulating properties of food by producing water soluble vitamins such as B and C.
2. The only mechanism microbes use to cause food spoilage is related to the growth of these microbes and their active metabolism of food components. This statement is True. In spoilage of food, bacteria involves in breaking down of food due to which waste products are produced. Apart from that, there are mainly two mechanisms by which food spoilage takes place which includes (a) microbial growth and active metabolism of food components ( it depends on various factors such as pH, temperature, nutrients content etc).(b) food spoilage in the presence of dead microbes ( as they releases out enzyme which results in alteration of properties of food).
3. People are not a major source of microbial contamination in the processing environment. This statement is False. Microbial contamination is mainly due to mishandling which is done by people most of time. There are lot of waste products that is being released into the environment is because of people who have been involved in downgrading the human resources so far. They use resources and the waste products released out or dumped back into the soil or water body.
4. Mold's are important for recycling dead plant and animal remains in nature, they do not attack a wide variety of foods and other materials useful to humans. This statement is False. Yes, Mold's are important for recycling dead plant and animal remains in nature but they do attack a wide variety of foods and other materials useful to humans. Molds require oxygen for their metabolic processes and also produces spores. They often involved in spoiling of food which leads to the glutinousness over the surface of food results in the appearance of fuzzy like colonies which can be green or black in color. Some spoilage mold can be toxic in nature.
5. Indications of microbial food spoilage vary with the microbe(s) involved and the time course of spoilage. This statement is True. Spoilage of food is caused due to the contamination of microbes into the food which cannot be consumed by the human. Food spoilage varies with the microbes. For instance, Bacteria (aerobic) results in bad odour, discoloration etc and anaerobic bacteria results in the production of organic acids which leads to the sour taste of food. Also, Mold results glutinousness over the surface of food which is being spoiled by it. All of these microbes can vary in their time of action. Some microbe can spoil the food earlier than the other ones, that depend upon the availability of nutrients present in the food, enzymes availability and the rate of chemical reaction during spoilage of food.

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