Tuna Protein Nutritional Quality Changes after Canning |
| |
Authors: | ANA M. CASTRILLÓ N,M. PILAR NAVARRO,M. TRINIDAD GARCÍ A-ARIAS |
| |
Affiliation: | The authors are affiliated with the Instituto de NutriciónyBro-matología (CSIC-UCM). Facultad de Farmacia. Ciudad Universitaria. 28040 Madrid. España. Direct inquiries to Pilar Navarro. |
| |
Abstract: | Albacore tuna (Thunnus alalunga) was steamed and canned in soy bean oil and sterilized at 115°C for 55 or 90 min. Proximate composition, total amino acid and available lysine content were determined during different phases of the process. Water and protein were lost in all phases and fat content increased. There was a decrease in available lysine during cooking but no loss in total amino acids. Nutritional evaluation of the protein showed differences in biological value and net protein utilization when the canned tuna was mixed with bread flour. |
| |
Keywords: | tuna amino acids canning available-lysine digestibility |
|