摘要
大豆乳清废水(SWW)是豆腐和大豆分离蛋白生产过程产生的废水。该废水排放量大,且富含大豆乳清蛋白、低聚糖和大豆异黄酮等有机物。目前,大部分企业将该废水排放至污水处理厂进行生化处理,不仅造成豆腐和大豆分离蛋白生产成本的增加,还导致大量有机物的流失。因此,资源化大豆乳清废水成为企业亟待解决的难题。鉴于此,本文从回收大豆乳清废水中的活性成分和生物转化大豆乳清废水两个角度,综述了近年来大豆乳清废水资源化的相关研究报道,并指出了两种策略的优缺点。研究发现,大部分大豆乳清废水资源化方法尚处于实验阶段,仅在废水中大豆乳清蛋白的回收并用于动物饲料与生物转化为沼气两个方面实现了工业化生产。针对上述现状,提出在未来应从以下三个方面进行研究以促进大豆乳清废水资源化的大规模资源化:降低大豆乳清废水中活性成分的分离成本并提高其利用价值;提高大豆乳清废水生物转化效率、转化率和产品附加值;对资源化方法进行经济效益核算,评估其工业化的可能性。
Soy whey wastewater(SWW) is produced in the production processes of tofu and soybean protein isolates. It has a large discharged volume and contains rich organic compounds such as whey soy proteins, oligosaccharides and soy isoflavones. At present, SWW is discharged into sewage plants and then treated via biochemical methods by most factories.This results in an increase in the production costs of tofu and soybean protein isolate and a large loss of the organics compounds. Therefore, the recycling of SWW has become a burning problem. On this ground, the studies on the recycling of SWW in recent years were reviewed from two perspectives: recovery of active compounds from SWW and biotransformation of SWW. The advantages and disadvantages of the two perspectives were also described. The results showed that most of the methods for recycling SWW were limited in a lab-scale. Only the recovery of whey soy proteins as animal feeds and biotransformation of SWW into biogas were operated in the industrial scale. On this basis, three future research directions were proposed for promoting the recycling of SWW: reducing the separation costs and increasing the use values of active compounds in SWW, increasing the transformation efficiency and rate of SWW and added values of corresponding products and evaluating the economic benefits of recycling methods to determine the feasibility of their industrialization.
作者
孙薏雯
邹雅婷
马欣悦
刘苗苗
李瑞
SUN Yiwen;ZOU Yating;MA Xinyue;LIU Miaomiao;LI Rui(School of Biological Science,Jining Medical University,Rizhao 276826,China)
出处
《食品工业科技》
CAS
北大核心
2022年第1期451-457,共7页
Science and Technology of Food Industry
基金
国家自然科学基金(31700211)
国家级大学生创新训练计划项目(201910443009)
济宁医学院大学生创新训练计划项目(cx2020102)。
关键词
大豆乳清废水
活性成分
回收
生物转化
soy whey wastewater
active ingredients
recovery
biotransformation
