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3241004551 [841]
2 years ago
11

Which method of microbial control does not rely on d naturing proteins or disrupting the cell membrane

Biology
1 answer:
Yakvenalex [24]2 years ago
6 0

Lyophilization

What is Lyophilization?

Freeze drying, often referred to as lyophilization or cryodesiccation, is a method of low temperature dehydration that entails freezing the product, releasing pressure, and then sublimating the ice. In Lyophilization it contrasts with dehydration caused by the majority of traditional methods, which use heat to evaporate water.

Stages of Lyophilization:

  • Pretreatment includes any method of treating the product prior to freezing. This may include concentrating the product, formulation revision (i.e., addition of components to increase stability, preserve appearance, and/or improve processing), decreasing a high-vapor-pressure solvent, or increasing the surface area.
  • Freezing and annealing during the freezing stage, the material is cooled below its triple point, the temperature at which the solid, liquid, and gas phases of the material can coexist. The product needs to be frozen gradually to form larger crystals, or it can undergo annealing, which involves cycling the temperature up and down.
  • Primary Drying Lowering the pressure (to a few millibars or less) and providing adequate heat to the substance causes the ice to sublimate during the primary drying phase.
  • The secondary drying phase aims to remove unfrozen water molecules, since the ice was removed in the primary drying phase. This part of the freeze-drying process is governed by the material's adsorption isotherms.

Know more about lyophilization here:

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3 years ago
Assume that while on a biology field trip, you find an unusual insect that you and several other biologists are unable to identi
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Answer:

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Once it has been determinate the novelty of the specie, the researchers write a formal description of it, takes pictures and name it with the new scientific name. Then, the researchers refer it to a scientific magazine.   The editor of the publication will comunicate the new discovery to an experts in that gender.   If the experts agreed, and the publication accept the study, the specimen converts to a new specie.   The process is long and could take years betwen the inicial discovery and the formal acceptation of the new specie

Explanation:

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3 years ago
Article name:What is melanin and how does it affect our eye,skin and hair color? is in Newsela<br>​
notka56 [123]

Answer:

melanin affects how one looks (1st question)

cause and effect (2nd question)

Explanation:

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3 0
2 years ago
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The _____ of a species is usually the result of predation, competition, and other types of interaction between species. Please c
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Answer:

Realized niche

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Realized niche:

is a set of conditions used by specie after interactions such as competition, predation etc with other species. It can aslo be defined as the actual range of habitats occupied by a species 

7 0
2 years ago
Which of Mendel's laws or principles states that gametes carry one allele for each trait?
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Law of segregation states that <span>gametes carry one allele for each trait
As it states that
</span>that during the production of gametes the two copies of each hereditary factor segregate<span> during the production of gametes</span>  so that offspring acquire one of the two allele  from each parent
so option C is correct
hope it helps
5 0
3 years ago
Read 2 more answers
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