调质工艺参数对小麦粉饲用品质的影响  

The effect of conditioning parameters on qualities of the wheat

作　　者：黄傲蒙 穆玉云 徐建雄[1] 

机构地区：[1]上海交通大学农业与生物学院,上海201101 [2]上海新农饲料股份有限公司,上海201613

出　　处：《饲料工业》2016年第23期10-13,共4页Feed Industry

摘　　要：文章通过单因素试验研究喂料速度、蒸汽压力、原料粒度对小麦粉调质后水分、糊化度、蛋白溶解度的影响。结果表明,当喂料速度从8 r/min增加到24 r/min时,物料水分和糊化度都呈下降趋势,水分从18.77%降低到15.89%,糊化度从40.65%下降到13.66%,蛋白溶解度则从50.48%上升到70.66%;当蒸汽压力从0.2 MPa增加到0.45 MPa时,物料水分从14.87%增加至17.46%,蛋白溶解度先降低后升高,在蒸汽压力为0.4 MPa时出现极小值,为67.11%,糊化度则先升高后降低,当蒸汽压力为0.35 MPa时糊化度最高,为24.55%;当原料粒度从1.2 mm增加到3.0 mm时,物料水分从18.2%下降到17.11%,蛋白溶解度有一定的波动,但整体向上,并在粒度为2.0 mm时出现极小值,为71.72%,糊化度先升高后降低,原料粒度为2.5 mm时出现极大值,为24.48%。综合比较,分别得出当喂料速度为16 r/min、蒸汽压力为0.35 MPa、原料粒度为2.5 mm时调制效果较好。The optimum process parameters of conditioning was established by one-factor experiment, taking the feed rate ,the vapor pressure and the raw material granularity as experiment factors, and taking starch gelatinization and protein solubility as experiment target. The results show：When the feed rate increased front 8 r/min to 24 r/min, moisture and starch gelatinization decreased with the feed rate, The moisture decreased from 18.77% to 15.89%, the starch gelatinization decreased from 40.65% to 13.66, the protein solubility increased from 50.48% to 70.66%; When the vapor pressure increased front 0.2 Mpa to 0.45 Mpa, the moisture increased from 14.87% to 17.46%, protein solubility decreased first and then increased. When the vapor pressure is 0.4 Mpa, the minimum value is 67.11%. The gelatinization increased first and then decreased, when the vapor pressure of 0.35 Mpa is the highest degree of gelatinization, 24.55%. When the raw material granularity increased from 1.2 mm to 3.0 mm, the moisture dropped from 18.2% to 17.11%, the minimum value of the protein solubility is 71.72%, it is found when the raw material granularity is 2.0 ram. The gelatinization increased first and then decreased, When the raw material granularity is 0.4 Mpa, the maximum value is 24.48%. The results showed that the optimal conditions of feed rate 16 r/min , vapor pressure 0.35 Mpa, raw material granularity 2.5 mm were obtained in this paper.

关 键 词：小麦 调制 工艺参数 糊化度 蛋白溶解度 

分 类 号：S816.32[农业科学—饲料科学]