Effects of Hot Smoking and Sun Drying processes on Nutritional Composition of Giant Tiger Shrimp (Penaeus monodon, Fabricius, 1798)
 
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Publication date: 2013-12-31
 
Pol. J. Food Nutr. Sci. 2013;63(4):227–237
 
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ABSTRACT
There are information gaps in the knowledge of the impacts of traditional techniques of fish preservation used to meet market demands even though there are growing concerns of the effects of these methods of preservation on product forms and qualities. In this study the effects of commonly used preservation techniques of hot smoking and sun-drying on the nutritional composition of Penaeus monodon were investigated. Proximate values varied significantly (P<0.05) except for protein the dominant constituent with an average value of 64%. Stearic acid varied significantly (P<0.05) with lowest values of 2.30% in smoked specimens. Oleic acid was the highest fatty acid thus the predominance of the monounsaturated fatty acids (MUFA) with smoked samples having predominant (P<0.05) values. ω-3/ ω-6 ratios of 7.76, 13.01 and 8.16 in fresh, smoked and sundried were in favour of the omega 3 with EPA (16.95±0.76-18.43±1.01%) being significantly higher (P<0.05) to the DHA (9.36±0.54-11.90±0.27%). Smoked forms had significantly higher values (P<0.05) of alanine, threonine, tyrosine and cysteine. Arginine and histidine were significantly raised (P<0.05) in sundried specimens. Isoleucine, methionine, aspartate, glycine and proline remained highest (P<0.05) in fresh samples. Lysine was limiting in smoked and sundried specimens. Smoked products offered healthiest advantage with the lowest values of saturated fatty acids (25.10%), index of atherogenicity (0.58), index of thrombogenicity (0.20) and bearing in mind goal of reduced coronary heart disease (CHD) in food consumption. This paper offers the first holistic work on nutritional evaluations of the three commonest forms for which Giant tiger shrimps are frequently consumed.
 
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