Kits | Microbiology | BIOLOGY A. Cheese Making Kit
Experiment kit for the demonstration of cheese making. Kit contains cheese culture cloth and a protease enzyme rennet substitute.
The culture used in this kit is a mixture of four bacteria - streptococcus lactis, streptococcus cremoris, streptococcus diacetylactis and leuconostoc cremoris - and is particularly suitable for cream or curd cheese. The rennet substitute is a protease enzyme which causes the milk to coagulate forming the ‘curd’. Kit supplied with instructions.
Direct Delivery – up to 7 days E8A16299
B. Immobilised Enzyme Kit
Enzymes have found widespread use in industrial and analytical processes and the products of whole cell metabolism are increasingly important. It has been found useful in a number of processes to employ enzymes or even whole cells in immobilised forms. The enzymes or cells are encapsulated and the raw materials passed over them, the products can then be collected continuously. This kit illustrates the basic principles of the preparation and use of immobilised biocatalysts.
• Entrapment of yeast cells and their use in fermentation
• Immobilised glucose isomerase - application in the sweetener industry
• Preparation and use of immobilised invertase Sufficient for 10 students/groups. Direct Delivery – up to 7 days E8A01685
C. Genetic Modification Kit
Agrobacterium tumefaciens (crown gall) produces tumours in plants such as tomatoes and sunflowers. The bacterium ‘injects’ some of its DNA into the cells of the host transforming them into cancerous cells. It also causes these cells to produce substances needed by the bacterium for growth. Students inject sunflower plants with Agrobacterium to induce gall formation and subsequently re-isolate the bacterium and grow it on agar plates.
Contents: • Culture of Agrobacterium • Sunflower seeds • Nutrient broth • Nutrient agar • Syringes, needles • Sodium thiosulphate • Instructions Sufficient for 5 students/groups. Direct Delivery – up to 7 days E8A18508