雜糧粉擠壓膨化工藝的優(yōu)化

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摘 要：以燕麥、薏米、青稞及小米4種雜糧為原料制備了雜糧粉，通過單因素試驗(yàn)和正交試驗(yàn)確定擠壓膨化的最佳工藝條件為物料水分添加量19%、喂料速度26 Hz、擠壓溫度145 ℃、螺桿速度25 Hz，此條件下雜糧粉的糊化度達(dá)到89.73%。

關(guān)鍵詞：雜糧粉；擠壓膨化工藝；糊化度

Optimization of Extrusion Process for Preparation of Coarse Grain Powder

ZHANG Yan， TIAN Haijuan， ZHANG Chuanzhi

（Jilin Business and Technology College， School of Grain Science and Technology， Changchun 130507， China）

Abstract： Four kinds of coarse grains， namely， oats， coix seed， hulless barley and millet， were used as raw materials for the preparation of coarse grain powder， and the optimal process conditions for extrusion and expansion were determined by single-factor and orthogonal experiment to be 19% of the material moisture addition， 26 Hz of the feeding speed， 145 ℃ of the extrusion temperature， and 25 Hz of the screw speed， and the gelatinization degree of the coarse grain powder reached 89.73% under these conditions.

Keywords： coarse grain powder; extrusion process; gelatinization degree

我國雜糧栽種歷史悠久、資源豐富、品種多樣，素有“雜糧王國”的美稱。（剩余2883字）