Abstract
The effect of level (450 or 900mg laminarin (L) and fucoidan (F) /kg feed) and duration (3 or 6wks) of feeding a seaweed (Laminaria digitata) extract containing L/F on the quality of pork (longissimus thoracis et lumborum (LTL)) stored in modified atmosphere packs and on organ lipid stability was examined. Mechanisms of L/F antioxidant activity in LTL were evaluated. Plasma total antioxidant status, LTL pH, colour, microbiology and ‘eating quality’ sensory analysis were unaffected by dietary L/F. ‘Visual’ sensory descriptors (purchasing appeal and overall visual acceptability) were enhanced (p<0.05) in L/F450−3 LTL. Lipid oxidation was lower (p<0.05) in L/F450−3 and L/F900−3 LTL and reduced in L/F900−6 kidney homogenates. In cooked minced pork, lipid oxidation was not reduced by dietary L/F. Saturated fatty acids were lower (p<0.05) in L/F900−6 LTL. Results indicated L/F in pig diets for 3weeks enhanced pork quality.
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