Abstract

In recent years, an increase in the chicken meat process industry has been growing quickly, which brings a large amount of difficult to process waste, chicken feathers. These billions of kilograms create a serious waste problem over the world, furthermore, poultry feather processing is not only particularly difficult but also relatively expensive. In fact, there is no technology suitable for processing such huge quantities of feathers to guarantee sustainable development of the chicken meat industry together with processing of waste feathers. This article introduces a newly designed and original, highly efficient and environmentally friendly method of physicochemical hydrolysis of waste feathers. The hydrolysis is carried out in the presence of a weak organic carboxylic acid; thus, the resulting hydrolysate does not contain any salts or ashes. Therefore, a resulting hydrolysate, which includes a mixture of amino acids, peptides, proteins, glycoproteins and free fatty acids, is suitable for a variety of applications; e.g. as a chondroprotective agent in the treatment of joint diseases, nutrients for crop plants or targeted biostimulants for agriculture. This paper is focused not only on the process scale-up but also on environmental aspects and economic evaluations to bring general view of the process.

Graphic abstract

中文翻译：

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新型绿色水解废羽加工方法的环境因素与经济评价

摘要

近年来，鸡肉加工业的增长一直在迅速增长，这带来了大量难以加工的废料，鸡毛。这数十亿公斤在世界范围内造成了严重的废物问题，此外，家禽羽毛的加工不仅特别困难，而且相对昂贵。实际上，没有适合于加工如此大量的羽毛以保证鸡肉工业和废羽毛的可持续发展的技术。本文介绍了一种新设计的，新颖的，高效且环保的废羽物理化学水解方法。水解是在弱有机羧酸的存在下进行的。因此，所得的水解产物不含任何盐或灰烬。因此，所得的水解产物包括氨基酸，肽，蛋白质，糖蛋白和游离脂肪酸的混合物，适用于多种应用。例如，作为关节疾病的软骨保护剂，农作物的营养素或农业的目标生物刺激剂。本文不仅着重于过程的扩大，而且还着眼于环境方面和经济评价，以使人们对该过程有一个整体的认识。

图形摘要