期刊
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
卷 62, 期 31, 页码 8567-8576出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10408398.2021.1931020
关键词
Animal health; co-products; corn; extrusion; nutrition; processing
资金
- Kansas Corn Commission
Corn plays an important role in the global economy and pet food market, providing valuable nutrients for dogs and cats. Its processing generates co-products with quality protein and fiber components that can help improve dietary energy and digestion. Despite controversies surrounding genetically modified corn, more studies are needed to determine its long-term effects. Overall, the negative perception of corn in pet foods may not be justified.
Corn is one of the largest cereal crops worldwide and plays an important role in the U.S. economy. The pet food market is growing every year, and although corn is well utilized by dogs, some marketing claims have attributed a negative image to this cereal. Thus, the objective of this work was to review the literature regarding corn and its co-products, as well as describe the processing of these ingredients as they pertain to pet foods. Corn is well digested by both dogs and cats and provides nutrients. The processing of corn generates co-products such as corn gluten meal and distillers dried grains with solubles that retain quality protein, and fibrous components that dilute dietary energy. Further, corn has much functionality in extrusion processing. It may yield resistant starch under certain processing conditions, promoting colonic health. Carotenoids in corn may enhance immune support in companion animals if concentrated. Mycotoxin contamination in grains represent a health hazard but are well controlled by safety measures. Genetically modified (GM) corn is still controversial regarding its long-term potential for mutagenicity or carcinogenicity, thus more long-term studies are needed. In conclusion, the negative perception by some in the pet food market may not be warranted in pet foods using corn and its co-products.
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