Asked By: Adrian Johnson Date: created: Aug 19 2021

How does moist heat affect microorganisms

Answered By: Julian Gonzales Date: created: Aug 20 2021

Moist heat is generally more effective than dry heat for killing microorganisms because of its ability to penetrate microbial cells.

Moist heat kills microorganisms by denaturing their proteins (causes proteins and enzymes to lose their three-dimensional functional shape)..

Asked By: Malcolm Cook Date: created: Mar 01 2022

How does temperature control microbial growth

Answered By: Jordan Smith Date: created: Mar 04 2022

Physical Factors that Control Microbial Growth. Generally,an increase in temperature will increase enzyme activity. But if temperatures get too high, enzyme activity will diminish and the protein (the enzyme) will denature. On the other hand, lowering temperature will decrease enzyme activity.

Asked By: Aaron Lopez Date: created: Sep 09 2022

What temperature is required to kill spores

Answered By: Keith Campbell Date: created: Sep 09 2022

Most microbial cells will die at a temperature of 100 ºC. However, some bacterial spores will survive this and need temperatures around 130ºC to kill them.

Asked By: Noah Sanchez Date: created: Jan 10 2022

Which reaction describes the destruction of microorganisms by moist heat

Answered By: Edward Anderson Date: created: Jan 10 2022

Moist Heat Sterilization Moist heat causes destruction of micro- organisms by denaturation of macromolecules, primarily proteins. Autoclaving (pressure cooking) is a very common method for moist sterilization. It is effective in killing fungi, bacteria, spores, and viruses but does not necessarily eliminate prions.

Asked By: Martin Lopez Date: created: Jul 15 2022

Do cold temperatures kill bacteria

Answered By: James James Date: created: Jul 15 2022

Cold Temperatures and Bacteria While cold temperatures don’t necessarily kill bacteria, they can slow or stop the growth of bacteria. This means the bacteria won’t reproduce quickly, but it also won’t be completely destroyed. … Any temperatures above 40 degrees allow bacteria to grow rapidly.

Asked By: Francis Bennett Date: created: Mar 17 2022

What bacteria can survive in low cool temperatures

Answered By: Andrew Flores Date: created: Mar 18 2022

Most extremophiles are microorganisms. These include fungi, algae, bacteria and especially archaea. The word “extremophile” comes from the Latin “extremus” (extreme) and the Greek “philia” (loving). Extremophiles that live at extremely low temperatures are called “psychrophiles”.

Asked By: Christopher Rogers Date: created: Jan 14 2022

Which is more effective dry heat or moist heat

Answered By: Abraham Hayes Date: created: Jan 16 2022

Moist and dry heat are the most common superficial heat therapy treatments. However, moist heat is more effective than dry heat in providing deeper penetration of the tissue at the same temperatures. … Patients often report greater relief of symptoms from moist heat.

Asked By: Robert Robinson Date: created: Sep 24 2021

Will freezing kill bacteria

Answered By: Harold Griffin Date: created: Sep 24 2021

Freezing does not kill germs and bacteria. Instead, it essentially puts them into hibernation. They are inactive while the food is frozen and will “wake up” as soon as the food thaws.

Asked By: Jacob Lewis Date: created: Aug 27 2021

Does freezing kill parasites

Answered By: Matthew Alexander Date: created: Aug 29 2021

Adequate freezing or cooking fish will kill any parasites that may be present.

Asked By: Alex Wilson Date: created: Apr 06 2022

At what temperature do microbes die

Answered By: Alexander Price Date: created: Apr 09 2022

Bacteria multiply rapidly between 40 and 140 degrees. Bacteria will not multiply but may start to die between 140 and 165 degrees. Bacteria will die at temperatures above 212 degrees.

Asked By: Fred Gonzales Date: created: Jul 30 2021

How can freezing protect microorganisms

Answered By: Bryan Howard Date: created: Jul 30 2021

Freezing kills microorganisms by physical and chemical effects and possibly through induced genetic changes. Research is needed to better understand the physical and chemical interactions of various food matrices with the microbial cell during freezing and holding at frozen temperatures.

Asked By: Gordon Jones Date: created: Jun 10 2022

Does hot water kill spores

Answered By: Antonio Kelly Date: created: Jun 11 2022

Although, some bacterial spores not typically associated with water borne disease are capable of surviving boiling conditions (e.g. clostridium and bacillus spores), research shows that water borne pathogens are inactivated or killed at temperatures below boiling (212°F or 100°C).

Asked By: Oswald Kelly Date: created: Mar 20 2022

What can kill spores

Answered By: Oscar Green Date: created: Mar 23 2022

A process called sterilization destroys spores and bacteria. It is done at high temperature and under high pressure. In health care settings, sterilization of instruments is usually done using a device called an autoclave.

Asked By: Brandon King Date: created: Dec 11 2021

How does dry heat kill microorganisms

Answered By: Landon Peterson Date: created: Dec 14 2021

Dry heat helps kill the organisms using the destructive oxidation method. This helps destroy large contaminating bio-molecules such as proteins. The essential cell constituents are destroyed and the organism dies. The temperature is maintained for almost an hour to kill the most difficult of the resistant spores.

Asked By: Nicholas Lewis Date: created: Nov 13 2021

What does low temperature do to microorganisms

Answered By: Reginald Alexander Date: created: Nov 14 2021

Human microbial pathogens usually thrive at body temperature, 37ºC. Low temperatures usually inhibit or stop microbial growth and proliferation but often do not kill bacteria. … Refrigeration preserves food by slowing down the growth and reproduction of microorganisms and the action of enzymes which cause food to rot.

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