Related Experiment Video
Updated: Aug 2, 2026

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize Zea mays L.
Published on: June 16, 2018
Effect of ultrasound pretreatment and soaking time on Quinoa malting
Arezu Eftekhari Yazdi1, Ahmad Pedram Nia1, Fariba Naghi Pour2
1Department of Food Sciences and Industries, Islamic Azad University of Sabzevar, Sabzevar, Iran.
Abstract:
In this study, malt was produced from quinoa seeds using different ultrasound treatment with different intensities (20%, 60%, and 100%), ultrasound times (5, 10, and 15 minutes), and soaking times (2, 6, and 10 hours) at a frequency of 20 kHz. The seeds were soaked in water at 25 °C during exposure to ultrasound waves. The results showed that an increase in soaking time led to a higher malting yield and percentage of soluble solids (°Brix), followed by a downward trend. This trend was intensified by longer exposure to ultrasound waves at higher intensities. The interaction effect of ultrasound wave and soaking time on physicochemical properties showed a downward trend, followed by an upward trend in cold-water and hot-water extract yields, reducing sugar, soluble nitrogen, color, and Kolbach index, with increasing levels of the variables. Finally, quinoa malt treated with an ultrasound intensity of 100% for 15 minutes and soaked for 6hours exhibited the best physicochemical characteristics.
Related Concept Videos
¹H NMR of Labile Protons: Temporal Resolution
The –OH proton in alcohols typically appears in the range of δ 2 to 5 ppm but can vary depending on the specific...
Mass Spectrometry: Alcohol Fragmentation
Microbes in Beverage Production
Production of Alcohol

