THE FUNCTIONAL PROPERTIES OF RICE PROTEIN ISOLATE EXTRACTED BY SUBCRITICAL WATER
Keywords:Rice, bran, subcritical water, extraction, Functional
Subcritical water extraction is a unique technique to produce protein isolate from foodstuffs. In this study, the protein isolate from rice bran and rice (in a proportion of 8:92) was treated by subcritical water extraction. The main independent variables in extraction process were: the extraction time (15, 30, 45 min) and the extraction temperature (110, 120, 130 ÂºC). The Solubility, foaming capacity and foaming stability, emulsifying activity and emulsion stability and the degree of hydrolysis of the rice protein isolate were determined at 120 ÂºC in different contact time (15, 30, 45 min). The optimum subcritical water extraction condition was obtained at 120 ÂºC in 45 min. Better functional properties were observed in subcritical water extraction products that indicated this method can be applied as a novel alternative technique to modify the properties of rice proteins isolate for the functional purposes in future.
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Copyright (c) 2021 Fatemeh Raeisi Ardali, Anousheh Sharifan, Seyed Mohammad Ali Ebrahim zadeh Mousavi, Amir Mohammad Mortazavian, Behrooz Jannat
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