Skim milk agar plates are used to provide a nutritious medium for growing micro-organisms. Once prepared, the agar can be plated with a population of micro-organisms to test for the micro-organism's ability to digest casein protein. Casein is a large insoluble protein found in skim milk. As...
as the agar will set in its container before it can be poured. Obtain sterile petri dishes and pour enough to cover the entire surface area of the plate and at least half of its depth. Avoid overfilling the plates and preferably do not allow the agar to contact the top edge ...
Using readily available materials (plus extras like powdered agar), readers can learn bacteria basics by taking samples from around the house and examining the growth in agar plates, inflating a balloon using yeast, and mummifying a fish with baking soda. Clear explanations of each experiment's ...
Agar is a type of nutrient used in a laboratory to grow cultures of bacteria, fungi, and other various microorganisms. Proper disposal of agar plates is a safety concern for the lab and the environment. Used plates have a different protocol than unused plates. The type of petri dish the ag...
Define anaerobes. How can they be (theoretically) distinguished in FTM tubes and by using Brewer's agar plates? How does ampicillin biochemically act on bacteria? How do pathogenic fungi penetrate their host? Explain the mechanism. How does microbes develop r...
When sterilizing the inoculating loop, make sure that the entire loop turns orange before using on the agar plates. When streaking the agar with the loop, be sure to keep the loop horizontal and only streak the surface of the agar.
Learn to make Kanten Jelly at home to enjoy in Japanese desserts like Anmitsu. Used in Japanese cooking for jellies, puddings, and custards, kanten is a natural gelling agent from algae. This easy agar jelly recipe is a great alternative if you are vegetarian or vegan. ...
Microbiologists typically count plates with 30–300 colonies. Samples with too few colonies (<30) do not give statistically reliable numbers, and overcrowded plates (>300 colonies) make it difficult to accurately count individual colonies. Also, counts in this range minimize occurrences of more than...
So the first thing we’re going to talk about is the experimental procedure and tools used for the experiment. Both changed more than a lot by the time I was finished, my original tools were, 12- 100x15 mm agar Petri plates, 12 disinfected swabs, 2 bottles of DI water, 12- 18x150mm...
To make a xanthan gum foam a ratio between 0.2% and 0.8% is typically used. The more xanthan gum you use the larger the bubbles that can occur and the denser the foam will be. Amount of Xanthan to Create BubblesFor bubbles, resembling soap bubbles, a typical ratio is 0.1% to 0.4% ...