Skip to main content

Culture Media Used For bacterial growth - Types Of culture Media



culture media for bacterial growth image reload




What is a medium (plural media)?
Any preparation that contains nutrients essential for bacterial growth, is called a medium.

What is culture medium?
A medium that has been successfully inoculated with bacteria, is called a culture medium. bacteria are capable of growing in a culture

medium. the culture medium may inhibit the growth of one type of bacteria and it may facilitate the growth of another type of bacteria. In other words, a culture medium can be selective in nature.

What is meant by Inoculation Of Media?
It means the introduction of infected material to the medium for the cultivation of organisms present in the material.

Classification/Types Of Culture Media.

1. According to the physical state.


a) Liquid media: fluid in nature, usually placed in test tubes, for example, nutrient broth.

b) Solid Media: Prepared by adding solidifying agents like gelatin and agar to the liquid medium, for example, nutrient agar.

2. According To Composition


a)Simple Media: it contains only basic substance such as nitrogen, carbon and minerals that are essential for bacterial growth, for example, nutrient broth, nutrient agar, peptone water etc.

b) Enriched Media: Some nutritionally enriched material like blood, serum or ascitic fluid is added to the medium, required for proper growth of some bacteria, for example, blood agar, chocolate agar.

c) Differential Media): it differentiates between two groups of bacteria, for example, blood agar, MacConkey's Medium

d) Selective Media: In this media, an inhibitory substance is added to the media which prevents the growth of all organisms except the one for which it is designed. for example, Lowenstein Jensen's medium.

e) Media used for the biochemical reaction: This media is used to detect different biochemical reactions produced by different organisms. for example, Simmons citrate medium.

Important Culture Media:
a) Nutrient agar
b) Blood agar
c)Chocolate agar
d)McConkey's Medium
e) Lowenstein Jensen (LJ) medium
f) Loeffler's Coagulated Medium
g) Robertson's cooked meat medium
h) Triple sugar iron (TSI) medium
i) Christensen's Urea Medium
j) Simmon Citrate Medium
k) Peptone Water
l) Nutrient Broth
m) Sugar Media.

Comments

  1. how about classification according to application or use?

    ReplyDelete

Post a Comment

Post Your Reply and Give Your Opinion About the Post

Popular posts from this blog

Human Parasites, Types of Parasites, and Classification

Parasite: A parasite is a living organism which gets nutrition and protection from another organism where it lives. Parasites enter into the human body through mouth, skin and genitalia. In this article, we will generally discuss the types and classification of parasites. It is important from an academic point of view. Those parasites are harmful, which derives their nutrition and other benefits from the host and host get nothing in return but suffers from some injury. Types of Parasites Ecto-parasite: An ectoparasite lives outside on the surface of the body of the host. Endo-parasite: An endo-parasite lives inside the body of the host, it lives in the blood, tissues, body cavities, digestive tract or other organs. Temporary parasite: A temporary parasite visits its host for a short period of time. Permanent parasite: Permanent parasite lives its whole life in the host. Facultative parasite: A facultative parasite can live both independently and dependently. It lives in the

How to taper off, wean off beta blocker, atenolol, Propranolol, Metoprolol

Beta blockers include, atenolol (Tenormin), propranolol (Inderal ) and metoprolol (Lopressor) and are used to treat high blood pressure, certain cardiac problems, migraine and few other conditions. People usually take atenolol, propranolol or metoprolol for many years as a treatment of high blood pressure or after having an episode of heart attack . Sometimes, it becomes necessary to withdraw these beta blockers due to their potential side effects that trouble the patients or sometimes doctor wants to change the drug and shift the patient to some other anti-hypertensive medicine. No matter whatever the cause is, whenever, a patient who has been using a beta blocker for a long period of time, and he needs to be stopped from further usage of that beta blocker, must not stop taking it. One should taper off the dose of a beta blocker. Now a question arises how to wean off or taper off a beta blocker? The method of tapering off beta blocker varies from individual to individual. Allow you