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This study evaluated the effect of adding lutein dye on the oxidative stability of yogurt during 35d of refrigerated storage, in the presence and absence of light. Yogurts manufactured without and with the equivalent of 1.5mg of lutein in 120g of the final product were characterized for their total carotenoid and riboflavin contents, and the behaviors of both riboflavin and lutein were monitored during...
Polychlorinated biphenyls (PCBs) are among the most toxic environmental pollutants. Food, especially animal based, has been described as the major source for human exposure to PCBs. We investigated PCB levels (congeners 10, 28, 52, 153, 138, and 180) in cheese from 14 cities of Rio Grande do Sul, Brazil. The fat was extracted using sodium sulfate and petroleum ether, and PCBs purification was conducted...
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