He then refined it into 34% whey protein concentrate powder and sold it for 50 cents a pound.

FORBES: Making Whey

Ingredients that hold moisture, including autolyzed yeast extract, sodium phosphate, and soy protein concentrate, further soften the food.

NPR: Excerpt: 'The End Of Overeating

Officials said the team is concentrating on more than the two companies believed to have exported the melamine in wheat flour mislabeled as wheat gluten and rice protein concentrate.

CNN: FDA: Melamine-tainted poultry, fish safe for humans

Otten now buys high-protein whey concentrate from cheesemakers, refines it in his plant and extracts different proteins for various customers.

FORBES: Making Whey