小麦淀粉工业废水的水质特征及酶法预处理条件研究  

The features of the wastewater from wheat starch industry and its pretreatment process with amylase

作　　者：何国庆[1,2] 朱辉[1,2] 陈忠明[1,2] 尹源明 

机构地区：[1]浙江农业大学食品科学与技术系 [2]浙江农业大学生物技术研究所

出　　处：《浙江农业学报》1997年第5期235-239,共5页Acta Agriculturae Zhejiangensis

摘　　要：对小麦淀粉废水的主要组分和化学需氧量（ＣＯＤ）进行了测定，并研究了用酶预处理淀粉废水的工艺。结果表明，该淀粉废水中大部分有机质是淀粉，平均含量为２２７ｇ／１００ｍｌ，另外含还原糖００８ｇ／１００ｍｌ，粗蛋白０２７ｇ／１００ｍｌ，灰分００３９ｇ／１００ｍｌ，ｐＨ３７６，酶处理能显著提高废水的还原糖含量。淀粉废水加１２ｕ／ｍｌ的α－淀粉酶至液化完全，还原糖占总糖的４２％，液化后的淀粉废水加５ｕ／ｍｌ的液体葡萄糖淀粉酶糖化５ｈ后，还原糖占总糖的９６％。The contents of main composition and COD in the wheat starch wastewater were determined, and the technique of the wastewater pretreatment by amylases was studied The results showed that most of the organic substances in the wastewater was starch with 227 g/100ml, and the contents of reducing sugar, raw protein and mineral were 008 g/100ml, 027 g/100ml, and 0039 g/100ml, respectively, with the pH of 376 Its COD content reached to 41000 mg/l The pretreatment by amylases could enhance the content of reducing sugar in the wastewater effectively The wastewater had been liquefied by α-amylase with the addition of 12 u/ml, and the liquefied wastewater had been saccharificated by glucoamylase with the addition of 5 u/ml for about 5h, the ratio of reducing sugar to total sugar reached to 42% and 96%, respectively The producing way of the wastewater from starch processing was also described

关 键 词：淀粉废水 淀粉 还原糖 小麦 淀粉工业 预处理 

分 类 号：TS235.1[轻工技术与工程—粮食、油脂及植物蛋白工程]