黄奇伟教授(中)展示从头发提炼出的白色角蛋白基材,和黑色传统水耕法基材。
新加坡南洋理工大学的研究团队周四公布,他们成功利用人类头发制成可降解水耕基材,并种出营养丰富的蔬菜,目前经已成功种出白菜、包心菜和芝麻菜等作物;研究人员也强调,这种用别人剪下的头发用来种菜的方法,不会有卫生问题。
研究人员先提取人类头发的角蛋白制成溶液,然后混入纤维素加强结构再抽走水份,就会得到一种类似海棉结构的白色水耕基材。这种基材可以自然降解,既能好好运用有机废料也能同时为蔬菜提供丰富养份。比现时广泛使用,不含营养素的聚氨酯、岩绵混酚醛泡沬的黑色无机基材更为方便。
领导研究小组的黄奇伟教授表示,每1.5公斤头发可生产1公斤的角蛋白基材,其实相当化算。另一方面他们是会先洗净头发表面的油污,再进行角蛋白提取,所以不会有卫生问题。但为令大家吃得安心,改用屠宰禽畜后余下的羽毛和角、蹄等代替头发提炼角蛋白也实际可行,同时更可以把农牧废料循环再用,可说是一石二鸟。
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