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科学家从加工虾的废水中提取蛋白:将用于制作食物 - 站长搜索
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科学家从加工虾的废水中提取蛋白:将用于制作食物

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2020-07-09 14:41:06 转载来源: 快科技

7月9日,据媒体报道,当虾在海鲜加工厂加工时,产生的废水中含有大量蛋白质。现在科学家们已经发明了一种方法来获取废水蛋白质,这种蛋白质可以用作动物饲料或人类食物

7月9日,据媒体报道,当虾在海鲜加工厂加工时,产生的废水中含有大量蛋白质。现在科学家们已经发明了一种方法来获取废水蛋白质,这种蛋白质可以用作动物饲料或人类食物

研究人员表示,在加工虾的废水排入下水道之前,首先需要去除废水中的有机物。该过程一般是通过添加一种名为絮凝剂的化学添加剂来实现,该添加剂可以使物质聚集在一起。

但最常用的絮凝剂是基于铁或其他非食品级化合物,因此收获的蛋白质不适合食用。相反,它要么转化成沼气,要么直接扔进垃圾填埋场。

另一种方法是用反渗透膜过滤水中的有机物,但这种方法通常会阻塞设备,而更换设备部件带来的成本远比收集这些废水中的蛋白质要高。

为此,由瑞典查尔姆斯技术学院的科学家英格丽德·恩德兰(Ingrid Undeland)和比塔·福格哈尼(Bita Forghani)领导的研究小组转向用海藻酸盐和从海藻中提取的角叉胶制成的可食用絮凝剂。

研究人员表示。利用这些技术,他们可以从加工虾的废水中提取高达98%的蛋白质。当这些提取物被干燥并制成粉末时,它们分别含有高达61%和23%的脂肪酸和脂溶性维生素。

标签: 科学家 加工 水中 提取 蛋白 用于 制作 食物


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