Optimisation of processing variables in the preparation of sweet potato chips using response surface methodology |
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Authors: | S?Singh C?S?Raina A?S?Bawa Email author" target="_blank">D?C?SaxenaEmail author |
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Affiliation: | (1) Department of Food Technology, Sant Longowal Institute of Engineering and Technology, Longowal, India;(2) Defence Food Research Laboratory, Mysore, India |
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Abstract: | Models capable of predicting the product quality of sweet potato chips have been developed using response surface methodology and used to determine the optimum processing conditions. Moisture loss, oil uptake, crispness (measured using a bending-snapping test in the TA.XT2 Texture Analyser), and sensory attributes such as colour, flavour, and texture were used to assess the product quality in the preparation of sweet potato chips. The optimum conditions which were attained for maximum moisture loss (11.65% on wet basis), minimum oil uptake (2.57%), crispness (794.37 g), colour score (7), flavour score (7) and texture score (7) were: frying temperature, 174.7 °C; salt concentration, 0.45%; citric acid concentration, 0.37%; potassium metabisulphite concentration, 0.65%; and frying time, 26 s. |
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Keywords: | Sweet potato chips Texture Response surface Optimisation Crispness |
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