期刊
FOODS
卷 12, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/foods12183343
关键词
pulpo a La Gallega; elderly-friendly food; texture-modified technology; Octopus vulgaris; HMR (home meal replacement)
This study aimed to develop high-quality octopus pulpo suitable for elderly individuals by optimizing the vinegar immersion and sous vide softening treatment conditions. The results showed that octopus arms softened under the optimal conditions have a high texture and nutritional properties, making them suitable for consumption by the elderly.
Considering the need for developing new senior-friendly processed seafood, this study aimed to develop octopus pulpo with high preference and excellent quality characteristics for elderly individuals by optimizing the vinegar immersion and sous vide softening treatment conditions for octopus (Octopus vulgaris) arms. The optimal sous vide heating temperature (70.0-100.0 degree celsius), time (69.5-170.5 min), and vinegar concentration (0.2-0.8%) were established using response surface methodology (RSM). The pulpo prototype was produced using an octopus arm softened under optimal conditions and seasoned with a potato and olive oil sauce. The physicochemical and nutritional properties of the prototype were evaluated, followed by sensory evaluation and safety assessments. The hardness of softened octopuses obtained by 0.48% vinegar immersion and sous vide treatment (84.3 degree celsius, 139.8 min), determined using RSM, was 394.5 x 1000 N/m(2), showing a reduction of 83.0%; this was confirmed by electron microscopic observation. The texture of the pulpo prototype with softened octopus arms showed the highest preference (8.4 points) and high physicochemical and nutritional properties. Overall, the octopus pulpo a La Gallega prototype produced using texture-modified octopus arms was suitable for consumption by elderly people with chewing disorders and could help improve their quality of life.
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