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    Difference Between Disinfection and Sterilization

    Difference Between Disinfection and Sterilization are explained in detail. Discover the meaning of each term, and the similarities between the two only at BYJU'S.

    BiologyBiology Difference BetweenDifference Between Disinfection And Sterilization

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    Difference Between Disinfection and Sterilization

    Disinfection and sterilization are the two common methods of killing or inhibiting the growth of microorganisms. Microbes can cause a number of diseases in humans and animals. They are also responsible for food spoilage. Therefore, it is beneficial to kill or inhibit their growth to minimize their harmful effects. This is achieved by sterilization or disinfection. However, both these processes are based on different principles.

    Let us have a detailed look at the difference between disinfection and sterilization.

    Disinfection vs Sterilization

    Following are the important difference between disinfection and sterilization:

    DisinfectionSterilization

    In this, the number of harmful microbes is minimized to a negligible level.

    In this, the medium is made completely free from all microbes.

    It kills only vegetative cells and not the spores.

    It kills both vegetative cells and spores.

    Wounds are disinfected – with agents such as hydrogen peroxide or rubbing alcohol.

    Wounds cannot be sterilized – as it may kill surrounding healthy cells.

    Disinfection only reduces the effect of microbes.

    Sterilization completely rids microbes from the surface

    Chemical methods are used for disinfection

    Combination of heat, irradiation,  high pressure, chemical and physical methods are used for sterilization

    Phenol, alcohol, chlorine, iodine are some of the disinfecting agents.

    High temperatures, steam, radiation, filtration are some of the sterilization techniques.

    Only adequate cleanliness

    Extreme cleanliness Used in daily life.

    Used primarily for medical and research purposes.

    For eg., pasteurization, disinfecting urinals, etc.

    For eg., sterilization of instruments used during surgery by autoclaving.

    What is Sterilization?

    Sterilization is a process mainly used to kill all forms of microorganisms and its spores. This process is carried out to maintain a sterile environment. It is usually done through combinations of heat, irradiation, filtration, high pressure etc.

    Read more: Principle of Sterilization

    What is Disinfection?

    Disinfection is a chemical process used to eliminate or inhibit the growth of bacteria and other pathogens that may cause infectious diseases in humans and animals. Disinfectants are the chemical solutions used to make substance infection-free. These include alcohol, iodine, chlorine, etc.

    Similarities Between Disinfection and Sterilization

    Disinfection and sterilization have a few things in common. These include:

    Both are used to decontaminate objects and surfaces

    Both processes can kill (most) harmful microbes.

    Conclusion

    The main takeaway here is that the aim of disinfection and sterilization are different. Disinfection aims to kill or inactivate harmful microorganisms, but leaves some microbes intact. Sterilization, on the other hand, aims at killing all the microbes. And each form of decontamination has its functional use, as stated in the comparison chart.

    Also Read: 

    Useful Microorganisms

    Types of Microbes

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    स्रोत : byjus.com

    Difference Between Disinfection And Sterilization in Tabular Form

    Disinfection and Sterilization are types of sanitizing methods. Based on the purpose of purification, either disinfection or sterilization can opt. In this article, we will learn the Difference Between Disinfection and Sterilization.

    Difference Between in Biology

    Difference Between Disinfection And Sterilization

    Disinfection and Sterilization are types of sanitizing methods. Based on the purpose of purification, either disinfection or sterilization can opt. In this article, we will learn the Difference Between Disinfection and Sterilization.

    In this decontamination, the main difference between sterilizing and disinfecting is that disinfection is the process of destroying or reducing harmful microorganisms from inorganic objects and surfaces, whereas sterilization is the process of killing all microorganisms.

    Sterilization also eliminates the bacterium of various organisms present in liquids, on surfaces, in medication, or compounds such as biological culture media. Such an “ultimate” form of purification is required during critical surgeries, laboratory or hospital, or in an industrial environment. Compared to sterilization, disinfection can be used in everyday life.

    Table of content

    1 Difference Between Disinfection And Sterilization

    2 Disinfection

    2.1 Types of Disinfection

    2.1.1 Air disinfectants

    2.1.2 Aldehydes

    2.1.3 Oxidizing agents

    2.1.4 Alcohol 2.1.5 Phenolics 3 Sterilization

    3.1 Types of Sterilization

    3.1.1 Steam 3.1.2 Heating

    3.1.3 Radiation sterilization

    3.1.4 Sterile filtration

    3.1.5 Chemical sterilization

    3.2 Methods of Sterilization and Disinfection

    Difference Between Disinfection And Sterilization

    Character Disinfection SterilizationDefinition In the Disinfection process, the number of harmful microbes is minimized to a negligible level. In the Sterilization process, the medium is made completely free from all microbes.Method In this, the chemical methods are used for disinfection. In this, methods like a combination of heat, irradiation,  high pressure, chemical, and physical methods are used.Effect It invades only vegetative cells and not the spores. It invades both vegetative cells and spores.Microbes It only reduces the effect of microbes. It completely rids microbes from the surfaceWounds Wounds are disinfected. Wounds cannot be sterilized.Cleanliness In Disinfection, there is adequate cleanliness. In Sterilization, there is extreme cleanliness.Use It can be used in daily life. It is used primarily for medical and research purposes.Techniques Phenol, alcohol, chlorine, iodine are some of the disinfecting agents. High temperatures, steam, radiation, filtration are some of the sterilization techniques.Example Pasteurization, Disinfecting urinals, etc. Sterilization of instruments used during surgery by autoclaving.

    Disinfection

    Disinfection is the process of destroying unhygienic microorganisms. However, the process is not capable enough to stop the overgrowth of spores. Spores may be able to survive and result in contaminating the objects and surfaces.

    Disinfectants are further classified into two types:

    1) Broad-spectrum

    Broad-spectrum disinfectant is the one that can be applied to a wide variety of pathogens. It is capable of eliminating a wide variety of pathogens.

    2) Narrow spectrum

    Narrow spectrum disinfectant is the one that can be applied to a tiny variety of pathogens and are easy to use, non-toxic, and comparatively affordable.

    An ideal disinfectant should be capable of killing microorganisms within a stipulated time. It should possess a longer shelf life and capable of performing at any pH. It should have a broad spectrum of performance and not be toxic or allergic. It is active in the presence of organic matter.

    Types of Disinfection

    Air disinfectants

    The droplets of disinfectants are sprinkled or vapor at a sufficient concentration in the air to reduce the number of practical infectious microorganisms. Chemicals used in this are propylene glycol and triethylene glycol.

    Aldehydes

    These are very less effective on spores and fungus also. Chemicals used in this are formaldehyde and glutaraldehyde.

    Oxidizing agents

    This causes the microorganism to collapse. Chlorine and oxygen are strong oxidizing agents, so their compounds are used e.g. common household bleach. It is the most affordable home disinfectant used to clean toilets, swimming pools, drains, surfaces.

    Alcohol

    It is high-concentrated and is capable to successfully inactivate viruses such as HIV, hepatitis B, and hepatitis C. It usually consists of ethanol or isopropanol. Chemicals present are safe and affordable to use in a household environment. Special care should be taken around inflammable items.

    Phenolics

    The mouthwashes, Dettol are the best examples of the oldest known disinfectant. Chemicals used in this are Phenol, Chloroxylenol.

    Sterilization

    Sterilization is the process of removal, killing, eradication, elimination of all forms of life, and biological pathogens. Microorganisms like fungi, bacteria, viruses, spores, prions, located in places, like a surface, some fluid, and medicines are also eliminated by sterilization.

    स्रोत : www.toppr.com

    Disinfect vs. Sterilize: Differences, Uses, and More

    Learn about the difference between sterilizing and disinfecting, how to keep your living spaces clean, best practices for fighting COVID-19, and more.

    The Difference Between Disinfecting and Sterilizing

    Medically reviewed by Dominique Fontaine, BSN, RN, HNB-BC, HWNC-BC — By Kristeen Cherney on February 26, 2021

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    Keeping your living space and common surfaces clean is important for your health. But this isn’t the same thing as disinfecting or sterilizing.

    Disinfecting and sterilizing are both types of decontamination, a process that makes something safe to touch. The purpose is to kill enough germs so the risk of infection is extremely low.

    Decontamination is different from cleaning, which can get rid of dust and dirt but may only remove some of the germs that are present.

    Read on to learn more about the differences between disinfecting and sterilizing, and about some best practices for fighting COVID-19 and other harmful agents.

    What it means to disinfect vs. sterilize

    You may hear the terms “disinfect,” “sterilize,” and even “sanitize” used interchangeably, but these aren’t the same thing.

    All of these methods are antimicrobial processes that aim to kill germs to some degree. But there are key differences to understand before choosing which mode of decontamination is best in your situation.

    Overall, sterilization is the most advanced form of decontamination, but disinfecting and sterilizing both kill more germs than sanitizing.

    Disinfecting

    The process of disinfecting removes harmful organisms from objects. This is usually done by applying chemical sprays or wipes.

    One of the greatest advantages to disinfecting is the availability of products to the general public. It’s possible to find disinfectants in wipe, spray, or other liquid forms, and you can even make your own products at home.

    Depending on the type of disinfectant used, the product may need to be left on surfaces for as little as 20 minutes or as long as 12 hours

    Trusted Source Trusted Source .

    What it kills

    Disinfectants can kill most viruses and fungi, with the majority of commercial products also marketed as effective against the COVID-19 virus when used as directed.

    While disinfectants can kill bacteria, they may not be able to treat bacterial spores, which lay dormant.

    Sterilization

    Sterilization, on the other hand, is a process typically used by professionals in settings such as hospitals.

    While disinfecting gets rid of most germs, sterilization removes all microorganisms — including those that aren’t harmful. Sterilization is common in medical facilities, but it may also be helpful for businesses and schools that want to get rid of germs in entire rooms.

    Methods of sterilization may include:

    pressurized steam (autoclaving)

    hydrogen peroxide gas

    ethylene oxide (EtO) gas

    ionizing radiation (typically used for medical equipment)

    dry heat cabinets (for medical instruments)

    infrared radiation advanced filtration

    Warning

    Due to potential dangers and intricacies, most sterilization methods are done by professionals only. Never attempt these methods on your own or allow an untrained professional to do so.

    Sanitizing

    Sanitizing is another method of removing dirt and killing germs that’s often confused with sterilizing.

    While sterilization gets rid of all germs, sanitizing aims to lower the amount to a safe level. The process of sanitizing can involve both cleaning and disinfecting.

    It’s also worth mentioning that while hand sanitizers may not eliminate all germs, they’re good to have on-hand until you have access to warm water and soap to properly wash your hands.

    Best practices for disinfecting

    While sterilization is typically done by professionals, you can properly disinfect items and common surfaces yourself at home or in your workplace.

    Here are some tips for safely disinfecting:

    Make sure your product is an actual disinfectant. The manufacturer will indicate such usage on their product labels.Beware of “natural” products claiming to kill germs. While natural wipes and sprays may be useful for cleaning, they don’t have the germ-eliminating capabilities that chemical disinfectants do.Learn what the product is designed to kill. Read your disinfectant’s label to find out what kinds of bacteria, fungi, and viruses the product can get rid of. This is especially important if you’re trying to fight coronaviruses like COVID-19.Let the disinfectant stay on surfaces for the right amount of time. Follow the product’s instructions on the label regarding how long it should sit for. Don’t wipe or wash the disinfectant away unless the instructions say so.Wear gloves. Handling these products could cause irritation to the skin, and contact should be avoided.Don’t combine chemicals. This is especially true of hydrogen peroxide and bleach.Safely store your disinfectant products. Put lids and caps back on tightly, and keep all products out of reach of children. Store disinfectants in a cool, dry place, such as a cabinet, and discard them if they’re expired.Use the disinfectant in a well-ventilated area. This is especially important to do if the product contains bleach.

    स्रोत : www.healthline.com

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