Summary
Factors affecting the volume expansion of potato cubes during puffing in a fluidised bed were examined. It was found that puffing temperature, initial size, pre-drying time and puffing time influenced the degree of expansion of the cube during the puffing step. Blanching alone was found not to influence expansion, but in conjunction with the other factors it was found that blanched samples showed greater volume expansion than unblanched samples. The optimum conditions for maximum volume expansion were found to be; blanching for 80 s, cube size between 7.5–12.5 mm, pre-drying time of 90 min. at 90°C and a puffing time of 270s at 130°C.
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Chandrasekhar, P.R. & P.K. Chattopadhyay, 1987. Studies on microstructural changes of parboiled and puffed rice.Journal of Food Processing and Preservation 14: 27–37.
Guraya, H.S. & R.T. Toledo, 1994. Volume expansion during hot air puffing of a fat free starch based snack.Journal of Food Science 59: 641–643.
Hoseney, R.C., K. Zeleznak & A. Abdelrahman, 1983. Mechanism of popcorn popping.Journal of Cereal Science 1: 43–52.
Johnson, P.N.T., J.G. Brennan & G. Campbell Platt, 1996. The effects of pre-treatments (blanching, moist infusion, puffing) on the reconstitution and physical properties of air dried plantain (Musa AAB). 1996 IFT Annual Meeting, Institute of Food Technologists, Chicago, p. 85.
Mudahar, G.S., R.T. Toledo & J.J. Jen, 1990. A response methodology approach to optimise potato dehydration process.Journal of Food Processing and Preservation 14: 93–106.
Shilton, N.C. & K. Niranjan, 1994. Puff drying of foods in a fluidised bed. In: T. Yano, R. Matsuno & K. Nakamura (Eds), Developments in Food Engineering Part 1. Blackie Academic and Professional, Glasgow, pp. 337–339.
Shilton, N.C., 1995. The use of an intermediate puffing step in the dehydration of potatoes. PhD Thesis, The University of Reading.
Tabeidie, Z., F.A. Payne & P.L. Cornelius, 1992. Puffing potato pieces with CO2.Transactions of the ASAE 35: 1935–1940.
Torreggiani, D., R.T. Toledo & G. Bertolo, 1995. Optimization of vapor induced puffing in apple dehydration.Journal of Food Science 60: 181–185, 194.
Wu, P.J. & H.G. Schwartzberg, 1992. Popping behaviour and zein coating of popcorn.Cereal Chemistry 69: 567–573.
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Shilton, N.C., Bekhit, A.A. & Niranjan, K. Optimisation of a dehydration process for potato cubes using an intermediate puffing step. Potato Res 41, 203–209 (1998). https://doi.org/10.1007/BF02358190
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DOI: https://doi.org/10.1007/BF02358190