Q: What is the difference between a mixed culture and a contaminated culture if they both contain more…
A: In microbiology , a bacterial culture is a growth of microorganisms which have been grown in a…
Q: Microorganisms are often grouped according to their optimum growth temperatures. Which groups are…
A: Bacteria spoil refrigerated foods.
Q: What types of samples can be measured with Circular Dichroism? Can information be extracted?
A: Circulate dichroism is the difference in the absorption of left handed circularly polarised…
Q: How moisture can be removed from food by freeze-drying method? Explain in detail.
A: The perishable objects are the foodstuffs that are likely to get decay or spoil quickly. The removal…
Q: Why is dilution a necessary part of pure culture preparation?
A: The pure culture consists of a single microorganism. This culture helps to easily evaluate the…
Q: How does pasteurization affect the number of bacteria present in milk? What differences, if any,…
A: To control microbial growth or contamination there are a number of aseptic techniques developed that…
Q: Are the large numbers of microorganisms found in the mouth cause for concern? Explain.
A: We are authorized to answer one question at a time.Since you have not mentioned which one,I am…
Q: Why is it important for a microbiology laboratory technician to use aseptic technique?
A: The majority of the microbes onto which scientists work in laboratories are known pathogens.
Q: Need help Can a pure culture be prepared from a mixed culture in a broth or plate? Explain.
A: INTRODUCTION How to make a pure culture from mixed culture is explained below.
Q: Why is it sufficient to stain cells from a SDA (Sabouraud Dextrose Agar) plate with crystal violet…
A: Introduction : Sabouraud agar, often known as Sabouraud dextrose agar (SDA), is a peptone-containing…
Q: What is the importance of agar plates and bacteria cultures in food microbiology?
A: There are different culturing techniques such as agar plates, broth culture, stab culture and solid…
Q: Physical methods of sterilization include :
A: disclaimer: since you have posted multiple questions we have answered the first question for you. if…
Q: explain why disinfectants that has a residual is preferable to one that does not
A: Introduction Disinfectants are chemical substances or compounds that are used to kill or inactivate…
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: when heat treatment is used as to contril microbial growth, what is the immediate impact of this…
A: The process of killing microbes or preventing their growth is called as sterilization. Sterilization…
Q: Identify applications for ethylene oxide sterilization.
A: KEY WORDS :- Ethylene oxide - It is a gas which is flammable in nature and colorless which is used…
Q: Clearly define the terms sterilization, disinfection, decontamination, sanitization, antisepsis, and…
A: Hygiene stands for some practices that are performed to preserve health. Most of the microbes, which…
Q: Explain the following application of kefir. I) As food preservatives
A: Kefir is the fermented milk drink . It is similar to the thin yogurt drink. It is also prepared by…
Q: Explain the usage as antimicrobial agents and disinfectants of Phenol and phenolics, alcohols,…
A: Introduction An Antimicrobial Agent Is A Chemical That Kills Or Inhibits The Growth Of Bacteria.…
Q: What is the purpose of food irradiation, and how does it work?
A: Irradiating food kills bacteria and extends life of the food.
Q: Compare the effectiveness of handwashing with water, with soap, and withsoap and surgical scrubbing
A: Handwashing is important and essential for hygenic health conditions. Handwashing is important to…
Q: Explain the significance of aseptic culture technique in growing microorganism
A:
Q: How alcohol is effective at contolling microbial growth?
A: Sterilization: Sterilization includes the complete wipeout of all microscopic life on a surface.…
Q: Correlate antisepsis, sanitization, disinfection, and sterilization with agent effectiveness
A: A microorganism or organism is a creature which is minute, which implies so little that individuals…
Q: Why is it necessary to know the accurate proportion in mixing bleach and water in cleaning and…
A: Bleach is a strong disinfectant. It has a active ingredient sodium hypochlorite; an effective…
Q: What is an alternative to autoclaving for sterilizing heat-sensitive materials?
A: Any process that kills, eliminates, deactivates, or removes all forms of microorganisms and…
Q: Define disinfection. Compare/contrast it with sterilization, antisepsis and bacteriostasis.
A: Sterilization, disinfectant, antisepsis and bacteriostatic all terms are related to halt the growth…
Q: For preparation of a smear on a slide, what is the purpose of heat fixation? What problems can arise…
A: The preparing a slide that has to be observed under a microscope there are multiple steps that are…
Q: How we can isolate microorganism from food? Please briefly explain at your own words.
A: Microorganisms are cosmopolitan in nature, which means they are present everywhere- in air, on…
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: Propose a confirmatory procedure that will determine if the microbial growth recovered from canned…
A: A microbe is a living entity that is so tiny that it cannot be seen with the naked eye. Microbiology…
Q: What is the most commonly used fixative in stool samples and why?
A: Fixative is a moist environment for transporting and preserving intestinal parasites in stool…
Q: Match the mode of disinfectant action for each of the following Gluteraidehydes Alcohol Phenols…
A: Here we are given mechanism of action of some disinfectants and i have matched them with their…
Q: What summary can be drawn from the stab slant and surface inoculation.
A: A growth medium is intended to promote the growth of a variety of microorganisms or cells by the…
Q: How can moist heat sterilization can sterilize antibiotic solution?
A: Moist heat sterilization is a technique that uses heated, increased pressure steam to sterilize an…
Q: What are the culture media that can be used for cultivating non-specific and specific…
A: A microbiological culture medium is a substance that promotes the growth, support, and survival of…
Q: Define the following terms; Sterilization, and Aseptic Technique. What are the differences between…
A: Microbes invading and proliferating within an organism's body causes infection. Microbes include…
Q: How does smear preparation of cells from a liquid medium differ from preparation of cells from a…
A: Answer: Smear Preparation is the method in microbiology laboratories to place the small amount of…
Q: What is diluent? Why is it useful for working with bacterial samples?
A: Dilution is done to decrease the concentration of the original sample that is being tested. Dilution…
Q: explain methods for cleaning beans using flat bed screen and drum spray cleaner
A: Much of the mechanical cleaning procedures must be performed in the field for proper storage of the…
Q: ther than the application of heat, name other methods of sterilization. Define the methods and give…
A: Sterilization is the process of completely destroying all microorganisms on the surface of an…
Q: Explain Chromatography Techniques in measuring food contaminants.
A: Chromatography is a important method help in the detection of many impurities , based on colour…
Q: Why is the sterilization important in healthcare system and can you give briefly explain?
A: Medical sterilization mainly makes use of three important terms such as sterilization, disinfection…
Q: Write the limitations of sterilization by Dry heat?
A: The dry heat sterilization technique includes the removal or killing the microorganism and require…
Q: Briefly outline the processes and purposes of the six types ofprocedures that are used in handling,…
A: Several challenges are there in studying the microbes and to deal with these challenges, the…
How irradiations are helpful in food preservation? explain briefly
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- What are the advantages of UV disinfection versus, or as acomplement to, chemical disinfection with chlorine?Explain Emulsions. What variations are there? Give an illustration of each category. Create two emulsification programmes.Acid-Fast stain A) E. Coli -Morphology shape -Arragement -Acid-fast or non-Acid-fast B) S. Epidermidis -Morphology shape -Arragement -Acid-fast or non-Acid-fast
- Differentiate the growth curve exhibited by the same inoculum under the following conditions. Draw and label the parts of your growth curve. A). If it is exponentially growing and inoculated in the same nutritious medium under the same optimum conditions. B). If it is taken from an old culture and inoculated into the same nutritious medium and incubated under the same optimum conditions in (A). C). If it is taken from an old culture and inoculated to a different and less nutritious medium and incubated under the same optimum conditions as (A).Distinguish the effectiveness of antimicrobial activity between ultraviolet light and ionizing radiation.Discuss، Factors that influencing the cleaning process ?