stability of carotenoid diets during feed processing and under different storage conditions类胡萝卜素的饮食在饲料加工的稳定性和在不同储存条件下.pdfVIP

Molecules 2012, 17, 5651-5660; doi:10.3390/molecule OPEN ACCESS molecules ISSN 1420-3049 /journal/molecules Article Stability of Carotenoid Diets During Feed Processing and Under Different Storage Conditions Orapint Jintasataporn 1,* and Bundit Yuangsoi 2 1 Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand 2 Department of Fisheries, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand * Author to whom correspondence should be addressed; E-Mail: ffisora@ku.ac.th; Tel.: +66-2579-7831; Fax: +66-2561-3984. Received: 7 February 2012; in revised form: 4 May 2012 / Accepted: 8 May 2012 / Published: 11 May 2012 Abstract: The stability of formulated carotenoid diets during feed processing and under different storage conditions were studied. All carotenoid diets were split into two groups with one group containing BHT (acting as an antioxidant) at 250 ppm and the other without BHT. The experiment was divided into two parts. First, all diets were evaluated in total carotenoid (TC) loss during feed processing, in dry mixed feeds after being processed and dried. In the final part, the completed dietary carotenoids were stored in an aluminum foil bag, the top of which was sealed with a bag sealer and kept under different storage conditions at 26–28 °C and 4 °C. The stability of the TC was observed during an 8-week trial period. The results showed that the diet pelleting process did not affect the carotenoid