Casein

Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Casein shopping experience:

1. Compare - without doubt the biggest advantage that the Casein offers shoppers today is the ability to compare thousands of Casein at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Casein? Wrong! If the Casein is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Casein then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Casein? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Casein and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Casein wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Casein then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Casein site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Casein, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Casein, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

See Casein paint for information about casein usage in artistic painting.

Casein (from Latin caseus "cheese") is the most predominant phosphoprotein found in milk and cheese. When coagulated with rennet, casein is sometimes called paracasein. British terminology, on the other hand, uses the term caseinogen for the uncoagulated protein and casein for the coagulated protein. As it exists in milk, it is a salt of calcium.

Casein is not coagulated by heat. It is precipitated by acids and by rennet enzymes, a proteolytic enzyme typically obtained from the stomachs of calf. The enzyme trypsin can hydrolysis off a phosphate-containing peptone.

Casein consists of a fairly high number of proline peptides, which do not interact. There are also no disulphide bridges. As a result, it has relatively little secondary structure or tertiary structure. Because of this, it cannot Denaturation (biochemistry). It is relatively hydrophobic, making it poorly soluble in water. It is found in milk as a suspension (chemistry) of particles called casein micelles which show some resemblance with surfactant-type micelle in a sense that the hydrophilic parts reside at the surface. The caseins in the micelles are held together by calcium ions and hydrophobic interactions.

The isoelectric point of casein is 4.6. The purified protein is water insoluble. While it is also insoluble in neutral salt solutions, it is readily dispersible in dilute alkalis and in salt solutions such as sodium oxalate and sodium acetate.

Applications In addition to being consumed in milk, casein is used in the manufacture of adhesives, Binder (material)s, protective coatings, plastics (such as for knife handles and knitting needles), fabrics, food additives and many other products. It is commonly used by bodybuilders as a slow-digesting source of amino acids as opposed to the fast-digesting whey protein, and also as an extremely high source of glutamine (post-workout). Casein is frequently found in otherwise nondairy cheese substitutes to improve consistency, especially when melted.

Health issues Possible Cancer Link Casein has been implicated very strongly as a carcinogenic compound according to The China Study by T. Colin Campbell. Also mentioned is the incidence of higher cancer rates in countries that consume more dairy products, specifically cheese, which has more than 10 times the casein density of milk. The book overviews many previous studies of the effects of animal fats, and builds a strong case for the possibility of a correlation between a diet containing excessive amounts of fat and the development of cancer. The authors admit freely that the book is controversial, but maintain that they are only presenting the conclusions of the studies. Others have noted that the studies discussed in the The China Study do not conclude what Campbell claims and caution, "Campbell consistently presents only half the story -- at best -- through the duration of the book."

Opioid Casein has been documented to break down in the stomach to produce the peptide casomorphin, an opioid that appears to act primarily as a histamine releaser . Casomorphine is suspected by some sources to aggravate the symptoms of autism .

Casein-free diet A study found that children with Autism placed on a casein-free diet for eight weeks showed significant behavior improvements (Lucarelli 1995). In many cases, casein free diets are combined with gluten-free diets and are referred to as a gluten-free, casein-free diet.

Blocking positive effects of tea A study of Charité in Berlin showed that adding milk to tea will block some of the normal, healthful effects that tea has in protecting against cardiovascular disease.1 It does this because casein from the milk binds to the molecules in tea that cause the arteries to relax, especially a catechin molecule called EGCG. The calcium in milk also binds with calcium oxylate molecules found in tea, and may work to prevent kidney stones caused by heavy tea drinking. One of the researchers told New Scientist magazine that "t probably also blocks tea's effect on other things, such as cancer." 2

References

Green, V., et al. 2006. "Internet Survey of Treatments Used by Parents of Children with Autism." Research in Developmental Disabilities. 27 (1):70-84
Lucarelli, S., et al. 1995. "Food allergy and infantile autism." Panminerva Med. 37(3):137-141.
Lorenz, M., et al. 2007. "Addition of milk prevents vascular protective effects of tea." European Heart Journal (DOI: 10.1093/eurheartj/ehl442)