Proteins

Salmon: nutrient-rich petfood ingredient

Wild caught or farm raised, salmon offers a source of digestible protein and omega-3 fatty acids for pet diets
Salmon, the supposed “last wild food” (Greenberg, 2010), has become very popular in petfoods. This may simply be marketing; however, there is some nutritional credence to the hype.
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Protein from potatoes?

Potato protein has features that make it a viable candidate for petfood applications
The terms potato and protein don't often come up in the same sentence--probably because we think of potatoes solely as a starch source. But in our ever-expanding search for useful ingredients in the petfood industry, potato protein, a concentrated extract from the potato tuber, has turned up in several specialty petfoods in the last couple of years.
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Textured vegetable protein: all about appearance

It makes for a great visual effect in canned foods
Textured vegetable protein (TVP), the meat extender we loved to ridicule in our school lunches, may be more prevalent in petfood than many realize. It isn't being used to stretch the meat budget or even to supplement meat protein. Instead, the most common application for TVP in petfoods is cosmetic. It makes for a great visual effect in canned foods, making them look more like real meat.
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Whey your protein options

As an ingredient, whey represents a quality, high protein component with nutritional and functional properties
It is becoming increasingly common to find petfoods that contain whey, a milk protein, as a prominent ingredient on their labels
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Wheat gluten

The contamination and mislabeling of this ingredient has affected almost every corner of the petfood industry
The contamination and mislabeling of this ingredient has affected almost every corner of the petfood industry
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Corn gluten meal

Consumers wonder: What exactly is it?
In 2002, much of the 1.35 million tons of corn gluten meal was consumed by the livestock market. However, a fair amount was used in petfood.
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