Алматы технологиялық университетінің хабаршысы (Apr 2023)
Using of nontraditional raw materials in beer production
Abstract
Given the highly competitive environment of brewing industry today, businesses need to constantly develop new products of high quality and nutritional value that meet consumer and sanitary requirements. Therefore, the production of beer-based mixed beverages using nontraditional raw plant materials is gaining popularity. It is quite possible to produce these types of beverages at brewing facilities of Almaty and the Almaty region since it presents a favorable climate to develop agricultural businesses producing fruits and berries and has a large potential for using wild crops. Using of these plants will keep the enterprise economically viable by expanding the assortment of products and increasing the share of low-alcohol beverages in total production. In this study, the purpose is to select the optimum method for the production of special beer based on apple and grape juice. The choice of these particular types of raw plant materials was due to their wide availability and suitability for juice processing. The methods of introducing juice into young beer after the post-fermentation stage, as well as the introduction of fermented juice into young beer, were applied in the production of a mixed beverage. The organoleptic, physicochemical properties of the finished beer made using two methods have been studied. As a result, the optimal beer to juice ratio of 70:30 was selected according to the first method. This method resulted in the most balanced combination in terms of organoleptic characteristics, but colloidal instability was observed. For the second method of special beer production, the Oettinger Pils yeast race was used for fermentation of the juice base that was introduced into young beer after the post-fermentation stage. The resulting beverage at the 50:50 ratio of beer to juice was highly stable and had the highest organoleptic and physicochemical qualities.
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