Relationship between the properties of raw and cooked spaghetti – new indices for pasta quality evaluation
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Department of Thermal Technology and Food Process Engineering, University of Life Sciences, Doświadczalna 44, 20-280 Lublin, Poland
Department of Equipment Operation and Maintenance in the Food Industry, University of Life Sciences, Doświadczalna 44, 20-280 Lublin, Poland
Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland
Division of Cereal Technology, Faculty of Food Sciences, Warsaw University of Life Sciences, Nowoursynowska 159C, 02-786 Warsaw, Poland
Department of Mechanical Engineering and Automatics, University of Life Sciences in Lublin, Głęboka 28, Lublin, Poland
Publication date: 2018-04-27
Int. Agrophys. 2018, 32(2): 217–223
The quality of pasta can be evaluated by measuring the characteristics which encompass the most important quality parameters, such as colour, cooking properties and texture. The aim of the study was to suggest new indices which can be used to evaluate the quality of pasta. For the tests, 15 samples of spaghetti (produced from either semolina or common wheat flour) were used. The bending test was performed for the determination of the strength properties of raw pasta, while the pasta colour parameters were evaluated via the Commission Internationale de l’Eclairage system. The pasta cooking test included the evaluation of optimum cooking time, weight increase index and cooking loss. The samples of cooked spaghetti were cut, and the para-
meters describing pasta texture were determined. Statistical analysis showed significant correlations (α = 0.05) between colour parameters (lightness and redness) and pasta ash content (R = -0.90 and 0.84, respectively). The mechanical properties of raw pasta correlated positively with pasta density. The strongest correlation was found between pasta density and flexural strength. The destruction force for raw spaghetti during the bending test correlated significantly and positively with the cutting force of the cooked pasta. The obtained correlations can be helpful in pasta quality evaluation.