"VWR"

A 100% natural chymosin from natural fermentation, chymosin is a coagulant often used for cheesemaking. Activity: Minimum 600 International Milk Clotting Units/ml (IMCU/ml). pH: 5.60 to 5.95. Refrigeration is required. Minimum Shelf Life (months) is 12 months. Used in lab 1C of Biotechnology: Science of the New Millennium curriculum.

All microbial cultures undergo an extensive quality control program prior to releasing for sale, so they are guaranteed for purity as well as for species.

Isolated from the alimentary tract of cows. Lancefield group D, gamma hemolysis. May be pathogenic in humans. 

Isolated from human urinary tract and wound infections, this organism is identifiable by its characteristic putrefactive odor.

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

Used to determine if bacteria produce extracellular enzymes to catalyze the hydrolysis of starch. Organisms that produce a starch hydrolyzing enzyme will display a clear zone around the area of growth while other areas of the agar containing starch will turn blue-black.

Sagittaria graminea. Monocot. Rooted aquarium plant with long, narrow leaves. Size: 5– 8". Package of six.

Unless otherwise noted, plants are supplied in waterproof, plastic bags that keep plants fresh and healthy. Care instructions are included. Be sure to check with your state’s Department of Agriculture for any restrictions.

Isolated from human nasopharynx. Presumably not related to N. sicca; some relation to N. gonorrhoeae. Often agglutinates in saline. 

Everything you need to safetly collect and culture bacteria and fungi from your environment

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

Place a sample in the well of the PetriSlide with a transfer pipette, and you're ready to view under the scope.

Ward's® PURE Preserved Specimens - the best dissection experience from start to finish.

A collection of some of the strains of Escherichia coli needed to grow various coliphages (available separately).

Frequent human isolate. Causes gastroenteritis.

From sewage and human intestine. Causes dysentery. 

Isolated from straw, can also be found in the soil, and acts as a decomposer. Slight anti-bacterial activity. With coenocytic hyphae