Evaluation of Rheological and Functional Properties of Roasted Soybean Flour and Mixed Cereals Fermented by Bacillus sp.
2011
Son, S.J., Keimyung University, Daegu, Republic of Korea | Lee, S.P., Keimyung University, Daegu, Republic of Korea
Roasted soybean flour (RSF) and mixed cereals were fermented by the solid state fermentation using Bacillus subtilis HA to optimize the production of biologically active compounds. The RFS fermented with 52.7% moisture content showed higher production with protease activity of 42.6 unit/g and 10% mucilage content after fermentation for 24 hr. Tyrosine content and protease activity after 48 hr fermentation time were the highest values with 445.5 mg% and 55.1 unit/g, respectively. However, the wholesome fermented RSF (FRSF) was obtained by fermentation for 24 hr because of the production of unpleasant flavors after fermentation for 48 hr. The RSF fermented with various types and contents of cereals has no effects on tyrosine content and protease activity. However, the addition of brown rice significantly increased mucilage content, especially indicating 24.55% at the addition of 80% (w/w). For addition of barley, fibrinolytic activity was increased to 11.82 unit/g by the fortification of 60% barley. It is concluded that biologically active compounds including fibrinolytic activity and mucilage content in FRSF were dependent upon the type and content of various cereals.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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