Utilization of economically efficient flocculants for sedimentation of brewery fermented liquor

酿酒行业是一个全球性的行业，由几家占主导地位的跨国公司和许多小规模的生产商组成。啤酒生产过程中，有糖化、煮沸、发酵、成熟三个主要的化学和生化反应以及麦汁分离、麦汁澄清和啤酒粗澄清三个固液分离过程。固液分离步骤是最具挑战性的步骤，需要使用絮凝剂，而且不会影响啤酒的味道和气味。拟议的研究项目针对La Barberie公司的具体问题，他们在使用膨润土作为传统絮凝剂时，面临着发酵后啤酒沉淀(持续时间较长且过程效率低下)的问题。从这一角度来看，该提案旨在利用不同的生物降解絮凝剂，如壳聚糖、海藻酸盐等，并在实验室规模上优化该工艺，然后将其与公司的工艺相结合。拟议项目目标的成功实现与La Barberie的优先事项相匹配，它将帮助该公司开发一种优化的综合絮凝工艺，从而生产出高质量的啤酒。

The brewing industry is a global business, consisting of several dominant multinational companies and many small scale producers. During beer production, there are three main chemical and biochemical reactions, such as mashing, boiling, fermentation and maturation and three solid liquid separations, such as wort separation, wort clarification and rough beer clarification. The solid-liquid separation step is the most challenging step requiring use of flocculants and no compromise on the taste and odor of beer. The proposed research project deals with the specific problem of the company, La Barberie who face a problem related to the sedimentation of beer (longer duration and inefficient process) after fermentation while using bentonite as a conventional flocculant. In this perspective, the proposal aims at utilization of different biodegradable flocculants, such as chitosan, alginate, among others and optimization of the process at laboratory scale and later to integrate with the company process. The successful accomplishment of the stated objectives of the proposed project match with the priorities of La Barberie and it will help the company develop an optimal and integrated flocculation process resulting in high quality beer.