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Instrumental indicators of desirable texture attributes of French fries
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NSTL
Elsevier
The texture quality of French fries is critical to the potato processing industry. Sensory evaluation via testing mouth sensation or by visual and finger spinning inspection are the primary methods to assess French fry texture quality. Instrumental texture analysis has not been practically used due to data inconsistency. This study aimed to minimize variations of instrumental analysis and identify instrumental parameters with strong correlations to a sensory evaluation to enhance the effectiveness of the texture quality assessment. This research was carried out on an industrial scale and utilized 10 potato varieties to increase the texture variation of samples. The sensory evaluation by the visual and finger spinning inspection was performed following industrial procedures and standards. Results showed instrumental crispness and crunchiness, as represented by the slope of the first significant fracture and the number of fractures of the force-distance curve in a cut test with a T-42 blade, were strongly correlated with desirable sensory attributes. Microstructure examination revealed that a low level of crust compactness was associated with instrumental crispness and crunchiness. The procedure advanced in this study had a small data variation and concluded that instrumental crispness and crunchiness are strong indicators of premium French fry texture quality.
French friesTexture analysisCrispnessCrunchinessCrust compactness
Sadeghi, Rohollah、Lin, Yulian、Price, William J.、Thornton, Michael K.、Lin, Amy Hui-Mei
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Univ Idaho, Bistate Sch Food Sci, Moscow, ID 83844 USA
Univ Idaho, Coll Agr & Life Sci, Stat Programs, Moscow, ID 83844 USA
Univ Idaho, Parma Res & Extens Ctr, Dept Plant Sci, Parma, ID 83660 USA
NSTL
Elsevier
