摘要
为了提高黄浆水的附加值和利用率,缓解排放黄浆水带来的环境污染,本文对黄浆水中的可溶性固形物进行絮凝处理。在单因素实验基础上结合响应面法对黄浆水中可溶性固形物的絮凝工艺进行优化,并且对絮凝前后黄浆水进行了蛋白质和总糖含量测定、生化需氧量和化学需氧量测定以及代谢组学测定。实验结果表明,絮凝沉降黄浆水可溶性固形物最佳工艺参数为:壳聚糖添加量为0.54 mg/mL,海藻酸钠添加量为0.24 mg/mL,pH为4.4,温度为47℃,此时黄浆水可溶性固形物沉降率为(46.26%±0.38%);蛋白质含量下降40.68%、总糖含量下降8.41%;生化需氧量和化学需氧量去除率分别为43%、40.95%。代谢组学实验结果表明:黄浆水絮凝前后有66种化合物含量存在显著变化。本研究结果表明絮凝能有效的降低黄浆水中可溶性固形物的含量,为黄浆水的进一步开发利用提供一定的参考。
In order to improve the added value and utilization rate of yellow serofluid and alleviate the environmental pollution caused by the discharge of yellow serofluid, the soluble solids in yellow serofluid were flocculated. On the basis of single factor experiment, the flocculation process of soluble solids in yellow serofluid was optimized with response surface methodology. The contents of protein and total sugar, BOD(biochemical oxygen demand), COD(chemical oxygen demand) and metabolomics of yellow serofluid before and after flocculation were determined. The experimental results showed that the optimal technological parameters of flocculation sedimentation of soluble solids in yellow serofluid were as follows: Chitosan content was 0.54 mg/mL, sodium alginate content was 0.24 mg/mL, pH was 4.4, temperature was 47 ℃,and the sedimentation rate of soluble solids in yellow serofluid was(46.26%±0.38%). Protein content decreased by 40.68%and total sugar content decreased by 8.41%. The removal rates of BOD and COD were 43% and 40.95%, respectively.Metabolomics experiment results showed that 66 compounds in yellow serofluid were significantly changed before and after flocculation. The results showed that flocculation could effectively reduce the content of soluble solids in yellow serofluid, which provides a certain reference for further development and utilization of yellow serofluid.
作者
王民申
李勇
冯进
李春阳
侯万伟
Oluwole Oluwatoyin Bolanle
Chuon Mony Roth
WANG Minshen;LI Yong;FENG Jin;LI Chunyang;HOU Wanwei;OLUWOLE Oluwatoyin Bolanle;CHUON Mony Roth(College of Food Engineering,Harbin University of Commerce,Harbin 150076,China;Institute of Agro-Product Processing,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;Institute of Agricultural Resources and Environment,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;Qinghai Academy of Agricultural and Forestry Sciences,Xining 810000,China;Food Technology Department,Oshodi Federal Institute Industrial Research,Lagos 999062,Nigeria;Cambodia Laboratory of Agricultural Products and Foods,Ministry of Agriculture Forestry and Fisheries of Cambodia,Phnom Penh 10103,Cambodia)
出处
《食品工业科技》
CAS
北大核心
2022年第1期244-252,共9页
Science and Technology of Food Industry
基金
2017年青海省科技计划项目科技合作专项(2017-HZ-816)。
关键词
黄浆水
响应面分析
可溶性固形物
絮凝法
代谢组学
yellow serofluid
response surface methodology
soluble solids
flocculation method
metabolomics