The Effect of Superheated Water Extraction Conditions on Properties of Quinoa-Barley Malt Extract

Samireh Sabah; Anoshe Sharifan; Afshin  Akhonzadeh Basti; Behrooz Jannat; Maryam  TajAbadi Ebrahimi

doi:10.18502/jnfs.v7i1.8536

Samireh Sabah Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Anoshe Sharifan Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Afshin Akhonzadeh Basti Department of Food Hygiene, School of Veterinary Medicine, University of Tehran, Tehran, Iran.
Behrooz Jannat Halal Research Center Islamic Republic of Iran, Tehran, Iran
Maryam TajAbadi Ebrahimi Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran.

DOI: https://doi.org/10.18502/jnfs.v7i1.8536

Keywords: Quinoa; Barley malt; Extraction; Superheated water extraction

Abstract

Background: Superheated water extraction (SWE), is a novel method, used to extract proteins or other bioactive component from agriculture products. Methods: In this study, the extract from quinoa-barley malt (in a proportion of 30:70) was treated by SWE method. The effect of extraction time (15, 30, and 45 min) on physicochemical and functional properties of the extract was determined at 120 ºC. Results: The result showed that by increasing the extraction time the amount of protein increased. The maximum protein (%) was obtained in 45 min of SWE. The results revealed that increasing the extraction time had a significant effect on the turbidity and pH. In addition, increasing the extraction time had a positive effect on the functional properties. The highest protein isolate (PI) solubility was at 120 °C. Conclusions: Although SWE method appears to be a useful extraction method for producing valuable materials from cereal and pseudocereal, this method has only been used at pre-commercial scale and more investigation is required to study the quantity, quality, and stability of the extracted valuable materials to scale it up for industrial means.