Microbes are cultured for various industrial products. How growth curve can be used for maximum product formation?

Q: Identify and describe the 4 wet-heat methods that are used to control microbial growth.

A: The different methods used for controlling the growth of microbes by moist heat are boiling,…

Q: During secondary treatment or biological treatment which of the following do not happen (1) Decrease…

A: Secondary wastewater purification systems use microorganisms to remove contaminants from…

Q: Agar is a solidifying agent used in media preparation. What makes it ideal for cultivation of…

A: Agar is a natural polysaccharide. It is mostly used in the lab and acts as a solidified agent. It…

Q: component used as a solidifying. .-1 agent for media

A: Since there are multiple questions in this particular question I'll answer the first one for you. If…

Q: Describe the advantages and disadvantages of aldehyde agents in microbial control.

A: The general formula of aldehydes is R-CHO. Several low molecular weight aldehydes are antimicrobial.…

Q: Suppose you are checking the microbial quality of a raw material using agar culture media. After…

A: Unwanted microbial growth occurs when no proper care is taken while tranferring the culture on the…

Q: Before inoculating and pouring molten nutrient agar into a plate, why must the agar first be cooled…

A: Agar or agar-agar is a jelly-like substances obtained from red algae. Agar is a solidifying agent…

Q: What nutrients do the following media components contain? • Peptone Yeast extract Beef extract •…

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

Q: A bioreactor which is used for the production of growth factor A is operated as fed- batch culture.…

A: A Bioreactor is a device or a process system which supports and habitats the biologically active…

Q: Which of the following agents (yeast, bacteria, and molds) do you think should be utilized to…

A: Yeast is a single-celled creature known as Saccharomyces cerevisiae that requires food, heat, and…

Q: The optimum growth pH for a microorganism is usually:  4,5,7 or 8

A: pH is the scale on which the acidity or alkalinity  is measured. It is the scale between 1 to 14.…

Q: List the two main types of culture media and how each differs and the types of microbes which grow…

A: Culture media contains all the elements which the bacteria needs for growth and is not selective in…

Q: What is the physical appearance (solid, liquid, semi-solid) of following media: agar plate

A: The Agar plate is made from mixing agarose and a growth medium onto a petri dish. Agarose is in a…

Q: What type pof media encourages the growth of some organisms but suppresses the growth of others?…

A: Culture media are also known as nutritive media or growth media and they are the nutritive mixtures…

Q: Explain how detergents, soaps, and heavy metals can beemployed in clinical, commercial, and…

A: Soaps, detergents, and various cleaning agents are used in the household, clinical, and commercial…

Q: why it is useful to plot the microbial growth from a growing microbial culture?

A: The term microbial growth refers to the growth of a population of microbe, it is an increase in the…

Q: Microorganisms are used in the nitrogen removal process. Discuss why it isn't part of the secondary…

A: The aerobic self purification process that involves when the organic matter is added to the lakes…

Q: Which of the following statements is true regarding steam sterilization? a. It is a universal…

A: steam sterilization , also called autoclave sterilization , is used in microbiological laboratory in…

Q: a) Microbial products can be classified in three major categories which related to the microorganism…

A: Microbial metabolism defines all the internal bio-chemical pathways, through which microbes obtain…

Q: Name and explain the culture media that can be used for cultivating non-specific and specific…

A: a) nutrient agar & tryptic soy agar, & brain heart infusion agar are culture media that can…

Q: hich method for introducing microbes on media uses an inoculation loop and the bacterial sample is…

A: Answer. The four-quadrant streak method is used for introducing microbes on media using an…

Q: Describe and give the principle of each equipment used for sterilization in microbiology.

A: Sterilization is the method of removal, killing or inhibition of all forms of lives, spores or…

Q: Outline the different physical and chemical methods of sterilization. Briefly describe how each…

A: Sterilization is the process that eliminates all forms of life either by deactivating, killing, or…

Q: What are some advantages and disadvantages of using ionizing radiation to sterilize food?

A: Sterilization involves physical methods for removing or controlling the microbes. The physical…

Q: What microbial control method would you use to clean a papercut? Why did you make that choice?…

A: A paper cut occurs when a piece of paper or other thin, sharp material slices a person's skin,…

Q: What sources of microbial contamination are in nutrient agar exposed in air,water,soil and plant…

A: Sources of microbial Contamination: - AIR: - Air contains a lot of bacteria staying afloat in the…

Q: Explain why it is essential that bacteria cultures be sterilized in an autoclave.

A: The microbial cultures are grown in the laboratory so as to multiply them or increase the number of…

Q: Which of the following best descrives UTI agar? Selective growth media; Differential Growth Media;…

A: A growth or culture medium is a liquid, solid or semi-solid medium, which is designed in a way that…

Q: Why should caps of glassware be loosened first before sterilization? [Answer in not more than 2…

A: Sterilization is defined as the process which removes , kills or deactivates all forms of life (in…

Q: Give a brief but critical discussion about microbial growth in natural environments and how it…

A: Living creatures reproduce and grow. Microbes become metabolically active and proliferate when they…

Q: Why is Escherichia coli used as an indicator organism inmicrobial analyses of water?

A: The well-known gram-negative bacteria are E. coli (Escherichia coli).

Q: Discuss briefly the phases of Microbial Growth Curve and why it is useful to plot the microbial…

A: For microbial growth many factors are important such as nutrients, temperature, pH, moisture and…

Q: Describe the five phases of a microbial growth curve observed when microbes are grown in a batch…

A: Introduction: Bacteria is unicellular prokaryotic organism that can survive in any kind of…

Q: ow can one be sure that the culture media are sterile or free from contamination

A: Sterility, often known as sterility, is the state of being free of all contaminants and…

Q: Agar is a solidifying agent used in media preparation.a. What is its origin? b. What makes it ideal…

A: A growth medium or culture medium is a gel or liquid designed to support microorganism growth. The…

Q: Why do you need to use antifoams in fermentation medium? How you could avoid from contamination…

A: Fermentation is a biochemical process that involves chemical changes in organic substrates, such as…

Q: It may seem contradictory that lyophilization can be used to preservefoods yet also be used to keep…

A: Lyophilization is a stabilizing process in which the substance is subjected to freeze drying and the…

Q: Explain the differences between primary and secondary metabolitesas they relate to industrial…

A: Step 1 Metabolites are the intermediates and products of metabolism that are characterized by small…

Q: Distinguish the difference between a sterile media plate and a contaminated media plate.

A: streaking is a method to extract pure culture organisms from a different population of…

Q: Draw two tubes showing how you have inoculated microorganisms in urease and in nutrient agar

A: Inoculation is the transfer of the bacteria on the nutrient medium to show its growth. The tools…

Q: Why do we grow the bacteria in minimal media when testing for citrate utilization

A: Minimal media are those that provide the minimal nutrients possible for colony development, usually…

Q: Give the components, properties and special considerations in preparation (if there's any) on the…

A: MacConkey Agar . It is selective for gram- negative rods bacteria. EMB . It is selective for fecal…

Q: Explain why desiccation and cold are not reliable methods of disinfectionbut how they can still be…

A: Sterilization is a technique that removes, kills, or deactivates all forms of life and other…

Q: which of the following is not a chemical method of microbial control

A: Answer is option c - Filteration Filteration is not a chemical method of Microbial control.

Q: Are you able to identify the lag, log, stationary and death phase in using this growth curve? Are…

A: The growth curve of bacterial cells can be divided into four distinct phases known as lag, log (or…

Food Microbiology

The subdivision of microbiology that deals with the interaction between microbes and food particles are called food microbiology. This scientific study incorporates both beneficial and harmful microbes and their effect on the food production, food storage, and health of human beings.