Depletion of ascorbic acid derivatives in fish feed by the production process |
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| Authors: | Bunji YOSHITOMI |
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| Institution: | Central Research Laboratory, Nippon Suisan Kaisha Ltd., Hachioji, Tokyo 192-0906, Japan |
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| Abstract: | ABSTRACT: The depletion of ascorbic acid derivatives in fish feed during the feed processing (extrusion cooking and drying) was studied at five extrusion cooking temperatures and at 85°C for 2 h dryer processing temperature. Three ascorbic acid derivatives were used: L-ascorbyl-2-mono-phosphate Mg (APM), L-ascorbic acid sodium (AAS) and L-ascorbic acid palmitic acid ester (AAP). Samples were collected after drying and ascorbic acid derivatives losses evaluated. APM was found to be quiet stable with an average retention of 88%, but AAS and AAP were unstable and the depletion was very high. |
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| Keywords: | ascorbic acid ascorbic acid derivative extruded pellet extruder extrusion cooking heat damage heat stability |
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