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2006-10-24 10:00:17 · 12 answers · asked by socemental 1 in Food & Drink Other - Food & Drink

12 answers

cheese

2006-10-24 10:03:45 · answer #1 · answered by Lynn S 3 · 0 0

Rennet is used to make cheese set.Compare Brie to Chedder. Chedder contains the Rennet.

2006-10-24 22:34:50 · answer #2 · answered by Anonymous · 0 0

Interesting topic, I will learn more.

Animal rennin is the coagulating enzyme (rennin or chymosin) that is harvested from the stomachs of calves.

Vegetable rennet is a misnomer given that the definition of rennet recognizes it strictly as an animal derived substance. Although cheese has been made using enzymes from the Lady Bedstraw, Stinging Nettle, and Thistle flower, the term vegetable rennet is most commonly used when describing enzymes produced using microbes. "Vegetable rennet" is sometimes used more generally to describe any non-animal rennet.

Microbial rennets are enzymes derived from a controlled fermentation of a fungus (e.g., Mucor Pusillus, Mucor Miehi, and Endothia Cryphonectria) or microbial rennets. However, microbial rennets cannot be used to produce cheddar or hard cheeses, limiting their application as an alternative to animal or bioengineered rennets.

Genetically engineered rennets. Shortages and fluctuations in the available supplies of calf rennet prompted the development of genetically engineered rennet. Food scientists can however produce a continuous and pure source of microbial chymosin by incorporating a calf's prochymosin gene into a microorganism. The first microbial chymosin was affirmed GRAS (generally recognized as safe) by the FDA in 1989, with many others following shortly thereafter. Currently, it is estimated that 50% of the chymosin used is produced by transgenic means.
Why Is Rennet Controversial?
Historically rennet was extracted from calf stomachs by killing the calves, cutting the stomach into strips, scraping the lining to remove surface fat, stretching it onto racks where moisture is removed, grinding it and then finally mixing it with a salt solution until the rennin is extracted. Today the use of animal rennin is controversial to a variety of cheese consumers. The main positions are subdivided below.

Animal rights. Animal rights activists argue that it is inhumane to kill calves for their stomach enzymes, especially when there are several alternative coagulants available to make cheese. These activists would argue that if you eat cheese, then purchase one that is made using cloned or microbial enzymes.

Vegetarianism. Vegetarians can have a confusing time trying to figure out what type of coagulant is acceptable in their cheese. While some vegetarians would strictly adhere to a non-dairy diet, others who eat dairy are content to allow microbial coagulants and some can accept cloned chymosin as a reasonable alternative to using calf rennet. Several vegetarian organizations accept the use of cloned animal enzymes as a reasonable alternative to the animal rennet derived from the killing of calves.

Bioengineering. Genetic engineering has brought new ways to create chymosin for use in cheese making. Originally, a prochymosin gene was injected into a host strain of E Coli K-12, creating a tiny enzyme factory that produced an extremely pure and recoverable chymosin for use in cheese production. Current technology cuts genes from a calf cell and injects it into the genomes of bacteria and yeast. This produces high quality chymosin that is not subject to the volatile market for animal derived rennet. It is estimated that 70% of domestic cheese is produced with bioengineered chymosin. For a consumer who does not want bioengineered foods, animal or microbial rennet should be their choice.

Religion. Some orthodox religions (Jewish and Islam) have specific requirements and prohibitions for the consumption of meat products that can preclude the use of animal rennet. For example, information received from Dr. Chaudry of the Islamic Food and Nutrition Council of America (IFNCA), stated that for a food to be "Halal" (permitted for consumption by Muslims), it must be void of certain animal products and processing procedures. In this case, cheeses that are made from animal rennet are only excluded if the calf is slaughtered improperly or is contaminated with other prohibited ingredients or procedures. The IFNCA recommends the use of microbial or bioengineered chymosin for cheese making.

2006-10-24 22:29:30 · answer #3 · answered by Smurfetta 7 · 0 0

Cheese. Originally it comes from the stomach membrane of unweaned calves. Synthetic type used now,you can get vegetarian rennet too.

2006-10-24 17:08:56 · answer #4 · answered by Anonymous · 0 0

Cheese

2006-10-24 17:04:29 · answer #5 · answered by elevator121 1 · 0 0

Junket. But you could also try making your own cheese, eek! Good luck! xx

2006-10-25 02:55:32 · answer #6 · answered by trimtautterrific 4 · 0 0

cheese
it curdles milk, and then you seperate the curds (cheesey lumps) from the whey (milky/watery liquid)

2006-10-24 17:04:59 · answer #7 · answered by Vinni and beer 7 · 0 0

A milk pudding.....Y E S SSSSSSSSSS thats it!!!

J U N K E T.......Junket!!!

2006-10-24 17:06:28 · answer #8 · answered by Anonymous · 0 0

I would make cheese.

2006-10-24 17:05:16 · answer #9 · answered by Allabor 3 · 0 0

Junket. We did it at school.

2006-10-28 16:57:27 · answer #10 · answered by tinkerbell34 4 · 0 0

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