. How will pH and aw will affect the growth of spoilage microorganisms on food?

Q: What is the significance of biofilm presence on medical equipment?

A: Biofilms are a collective aggregation of one or more types of the microbial population together…

Q: ons are affected by certain factors. Which of the following is/are not affect to fixation. pH and…

A: Fixation is the preservative mechanism in which tissue is fixed to prevent protein degradation. It…

Q: Discuss the similarity and difference between the following terms and describe briefly the…

A: Food Analysis and Characterization ---Food analysis is the discipline dealing with the development ,…

Q: 1.) During a laboratory activity, Chemical reactions from mixture of chemicals should be observed…

A: Beside using a personnel equipment like gloves, coat, eye glass etc., one should also be aware of…

Q: A sample of soup (pH 6.2) had 5,000 units of bacteria, after 18 minutes of treatment at 98 °C, 5…

A: Bacteria are the single celled microorganisms which comes under the kingdom Monera of classification…

Q: 4. What is the importance of pH adjustment in culture media?

A: pH is the measure of the acidity or basicity of a substance, in molecular terms pH is the negative…

Q: All of the following are routinely used to preserve foods excepta) high concentrations of sugar.b)…

A: Food preservation is defined as one of the methods to protect food from unwanted microbial growth…

Q: What is the difference between common rich media and defined media?

A: The culture medium is also known as growth medium can be solid, liquid which can support the growth…

Q: What is biomagnification? Why is it essential in toxicology?

A:

Q: Define Optimum Temperature.

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: 1. In what proportion should alcohols of 95% and 50% strengths be mixed to make 70% alcohol?

A: Alcohol has many used in the medical field.It has varying concentrations and it is mainly used as…

Q: Why should ice be used for 10-20 minutes every few hours?

A: Items present in surroundings or food exert their effects on the body. These effects might be…

Q: 1. Biomaterials science is not significant monetarily, but the magnitude of the field is extremely…

A: Biomedical sciences is a science which deals with the design, function and interaction of…

Q: 2. Which of the following is NOT correct about the composting process? A. The composting process of…

A: Composting Is a biological process that decomposes organic materials into humus known as compost.…

Q: retort pouch is: a) Filled first with food product and then retorted (heat-sterilization) to extend…

A: In retort pouch food is filled into a pouch . Then it sealed and next heated to extremely high…

Q: 9. What are the biosafety level requirements for the determination of a. Thermotolerant and E. coli…

A: Biosafety level (BSL), also known as pathogen/ protection level refers to a set of precautions…

Q: 2. What is the cfu/g or cfu/mL in each sample if the following counts were obtained after spread…

A: Potato dextrose agar is a media which is used for growth of yeast and molds.

Q: What are the products obtained when coconut oil is heated with NaOH? Coconut oil + NaOH → ? + ?

A: Hydrolysis of triacylglycerol by the alkali produces glycerol and soap. This process is called…

Q: What is it mean: tempering? Select one: a. dissolution b. pre-crystallization c. melting of…

A: Tempering is a directed pre-crystallization method Or Tempering is also called pre crystallisation…

Q: Which statement among A-D is false regarding physical and chemical agents of control? A) O Effective…

A: Sterilization and pasteurization are equivalent processes because both are used to kill…

Q: Why do bacteria produce exoenzymes?   2. Lipases are one of the most commonly used enzymes in…

A: 1. Why do bacteria produce exoenzymes?   Bacterial use the produced exoenzymes as a primary…

Q: Bacterium F had the lab results below. On which carbohydrates can it grow? From which sugars does it…

A: Bacterial ability to shape organic compounds by metabolizing certain carbohydrates and related…

Q: Agar is superior to gelatin as a solidifying agent because agar a. does not melt at room temperature…

A: Agar is used as a medium for culturing in laboratories.

Q: Two of the most important preparation principles to follow when cooking with milk are low heat and:…

A:

Q: the process of converting TAG to fatty acid salt and alcohol.* Please choose one correct answer only…

A: Triglycerides or Triacylglycerol (TAG)  are lipids comprised of three fatty acids esterified with…

Q: 5. Why is the temperature of pasteurization at 60°C?

A: Food gets spoiled with time. It occurs majorly due to the action of microorganisms.  Various…

Q: f. Which type of milk, the carabao or cow’s milk, would give farmers or cheese-makers a higher…

A: Carabao is the local Filipino word meaning water buffalo. Carabao are incredible animals that are…

Q: 2. If one only one of the following is available to you? (Maximum Growth temperature, Minimum Growth…

A: Microbes are classified according to their growth range temperature. Optimum growth temperaure…

Q: Escherichia coli but not Pyrolobus fumarii will grow at 40°C, while P. fumarii but not E. coli will…

A: Microbes are classified based on the adapted environment. There are mesophiles, thermophiles and…

Q: Are the following statements true or false? 1. A material can be absolutely inert in living tissue…

A: biomaterial is a substance that has been engineered to interact with biological systems for a…

Q: Explain the Turbidity method in microbiology and its advantages and disadvantages?

A: Turbidity It describes how the light passes through a liquid sample by measuring the number of…

Q: How many bases differ between (a) O. kisutch and your fish sample?(b) O. keta and the sample? (c) S.…

A: Most of the time while buying fish people prefer wild-caught Pacific salmon (Oncorhynchus species)…

Q: Why is it the Fluidized Bed Bioreactor is important in the biological wastewater treatment compare…

A: Fluidized bed bioreactor are specialized bioreactor in which many chemical reactions can be used in…

Q: 5. What is the difference between dry salting and brine salting? A. Dry salting is soaking the raw…

A: Dry salting is utilized to draw the dampness ( moisture ) out of food, which assists with reducing…

Q: How do you prepare a Potato Dextrose agar in a 500ml glass bottle (NOT FROM COMMERCIAL POWDER)

A: Potato Dextrose Agar, also called as PDA, is a typical microbial growth medium produced using an…

Q: an agent added to capsules to absorb moisture and to prevent any increase in water content of…

A: Desiccants have a high affinity to water and are hygroscopic in nature. They are non-toxic and…

Q: 1. You were given a mixed nutrient agar broth culture of bacteria.  a. How will you determine the…

A: Nutrient agar medium is used to cultivate microbes supporting the growth of a wide range of…

Q: 1. If the yogurt were contaminated, how would thr gram stain look like? And how will it affect the…

A: Yogurt is a food produced due to bacterial fermentation of milk. Fermentation occurs in anaerobic…

Q: 1. You dilute 1 mL of bacterial culture with 99 mL of water. What is the resulting dilution factor?…

A: 1. Dilution factor:In order to calculate the Dilution factor, the final volume is to be divided by…

Q: 1&3/4 tbs po BID x 7 days #QS How many milliliters should the pharmacy dispense? this is the whole…

A: Drug  Medication or medicine that causes functional modifications when consumed.  Factors affecting…

Q: How would changing the type of bread (e.g. fresh from a bakery, no preservatives vs. prepackaged…

A: Bread: It is a staple food. It is prepared from water and dough of flour at a particular…

Q: Which of the following items is the least suitable for sterilization by autoclave? a. Water for…

A: An autoclave is a machine that is used to perform industrial and scientific processes that require…

Q: 1. What is the significance of soaking the container in bleach? 2. What is the significance of…

A: Significance of container soaking in bleach before pouring :-

Q: Which would you expect to cost more per pound? What would a brewer need to do to be able use each of…

A: Oats are important breakfast cereals with excellent lipid profiles and a high amount of soluble…

Q: 4. The enthalpy change of a chemical process depends only on the initial and final conditions, it is…

A: You have asked multiple questions. I will answer 1st question , as per guidelines. Given : Statement…

Q: Soil X’s pH is measured before and after urea application, it has been noted that after the…

A: The quality of soil and the availability of nutrients is very essential for plants growth. If the…

Q: 5.Discuss the purpose, process, and possible risks from food irradiation.

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.