Fillets and cooking yields, water holding capacity, textural properties, colour, proximate composition, collagen and fatty acids of five strains (IT1, IT2, IT3, USA, UK) of rainbow trout, Oncorhynchus mykiss, reared in three farms (F1, F2, F3), were measured before and after cooking. Physico-chemical parameters of the strains greatly differed both in raw and cooked state. IT2 and USA recorded the highest yields. IT2 distinguished from the other strains, showing lowest values of hardness, chewiness, gumminess and springiness. It also had brighter and less pigmented flesh with low fat, mainly in the raw state. USA strain showed the most valuable traits in terms of texture and colour, and had higher fat and collagen content in flesh. The physico-chemical profile of each strain was differently modified by cooking. USA strain maintained a positive texture and colour profile after cooking and its quality was the best

Martelli, R.; Franci, O.; Lupi, P.; Faccenda, F.; Parisi, G. (2014). Physico-chemical traits of raw and cooked fillets of rainbow trout (Oncorhynchus mykiss) from different strains and farms. ITALIAN JOURNAL OF ANIMAL SCIENCE, 13 (3): 693-702. doi: 10.4081/ijas.2014.3417 handle: http://hdl.handle.net/10449/26959

Physico-chemical traits of raw and cooked fillets of rainbow trout (Oncorhynchus mykiss) from different strains and farms

Faccenda, Filippo;
2014-01-01

Abstract

Fillets and cooking yields, water holding capacity, textural properties, colour, proximate composition, collagen and fatty acids of five strains (IT1, IT2, IT3, USA, UK) of rainbow trout, Oncorhynchus mykiss, reared in three farms (F1, F2, F3), were measured before and after cooking. Physico-chemical parameters of the strains greatly differed both in raw and cooked state. IT2 and USA recorded the highest yields. IT2 distinguished from the other strains, showing lowest values of hardness, chewiness, gumminess and springiness. It also had brighter and less pigmented flesh with low fat, mainly in the raw state. USA strain showed the most valuable traits in terms of texture and colour, and had higher fat and collagen content in flesh. The physico-chemical profile of each strain was differently modified by cooking. USA strain maintained a positive texture and colour profile after cooking and its quality was the best
Rainbow trout
Strain
Cooking
Texture
Quality
Settore AGR/20 - ZOOCOLTURE
2014
Martelli, R.; Franci, O.; Lupi, P.; Faccenda, F.; Parisi, G. (2014). Physico-chemical traits of raw and cooked fillets of rainbow trout (Oncorhynchus mykiss) from different strains and farms. ITALIAN JOURNAL OF ANIMAL SCIENCE, 13 (3): 693-702. doi: 10.4081/ijas.2014.3417 handle: http://hdl.handle.net/10449/26959
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