Effect of Adding Different Proportions of Black Fungus on the Brewing Characteristics of Youtang Rice Roasting Powder
Youtang rice roasting powder with high-resistant starch was used as the raw material,black fungus powder was added in proportions of 0%,5%,10%,15% and 20% to Youtang rice roasting powder to form different composite powders.In this study,the effects of different amounts of black fungus powder on the gelatinization,dis-persibility property,and digestibility characteristics of Youtang rice roasting powder were investigated.The results in-dicated that with the addition of black fungus powder,the peak viscosity,holding viscosity,breakdown,final viscosi-ty,setback,and consistence of the starch in Youtang rice roasting flour increased as the amount of black fungus pow-der added increased.The quantity of black fungus powder added was directly proportional to the blending characteris-tics of the compound powder.Notably,when the mass ratio of the addition reached or exceeded 10%,the blending stability of the compound powder was significantly improved.However,an increase in brewing water temperature led to an increase in the caking rate and a corresponding decrease in wetting properties.The addition of black fun-gus powder significantly enhanced the water absorption rate of the rice flour,thereby improving its water absorption capacity.Moreover,the addition of black fungus powder at an appropriate proportion markedly improved the digest-ibility of the rice flour.A comprehensive evaluation of all indicators suggested that an optimal range for the addition of black fungus powder was between 10% and 15%,resulting in superior texture and taste of the rice flour.