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Shortened Temperature Program for Application with a Rapid Visco Analyser in Prediction of Noodle Quality in Wheat

¹Agriculture Western Australia, Locked Bag No. 4, Bentley Delivery Center, WA 6983, Australia. ²Corresponding author. E-mail: gcrosbie@agric.wa.gov.au. ³Dept. of Crop and Soil Science, Oregon State University, Corvallis OR 97331.

The use of the Rapid Visco Analyser (RVA) for application in the screening of wheat breeding lines for starch quality and potential noodle quality has been limited by relatively low sample throughput. Current methods generally enable only 20–30 samples to be tested each day. This study sought to develop a more rapid time-temperature profile that could be applied to whole meal samples. A profile that involved a total analysis time of 7.5 min/sample gave measurements of peak viscosity (PV) and breakdown (BD) on whole meal that were highly correlated with corresponding measurements obtained using a more conventional profile that had been applied to low-extraction flours. BD and PV were also highly correlated with the total texture score of ramen (Chinese-style alkaline noodles as manufactured in Japan), but only when 1 mM AgNO₃ was used to eliminate the effects of α-amylase.