Thesis (MTech (Food Technology))--Cape Peninsula University of Technology, 2016. / This study focused on alcoholic fermented fruit beverages that were produced from various types of fruit, value addition and thus potentially increasing the diversity of commercially available fruit wines. Non-grape alcoholic fermented fruit beverages is a complex mixture of water, alcohol, and other components, that are either initially present in the fruit, or are formed during the fermentation process. The evaluation of wine and similar fermented products quality is important for manufacturers and consumers. The routine analysis of alcoholic fermented fruit beverages acts as an important tool that is useful for wine classification, quality control and sensory evaluation. Therefore, the aims of this study were (1) to measure methanol, ethanol, titratable acidity, objective colour, total soluble solids and sensory profile as a function of yeast strain and percentage pulp in order to adapt existing technologies toward producing new fermented fruit beverage products using plums, an under-utilized agricultural produce; and (2) to measure methanol, ethanol, titratable acidity, objective colour, total soluble solids and sensory profile as a function of yeast strain, pulp percentage and sugar levels in order to adapt existing technologies toward producing new fermented fruit beverages based on red and white wine styles, while applying the technology developed in the first part of the study using red-fleshed plums, blueberries and blackberries. The independent variables (ID) were yeast strains (1) Saccharomyces cerevisiae VIN13, (2) Saccharomyces cerevisiae NT116, and (3) Saccharomyces bayanus N96, with formulations containing percentage pulp concentrations at (40%, 50% and 60%). The dependent variables (DV) constituted key quality parameters for white and red wine style, namely methanol, ethanol, titratable acidity, objective colour, total soluble solids, pH and sensory profile were measured. The optimal combination of independent variables was ascertained and in terms of the overall consumer response, for the red-fleshed plum beverage sample treatment N 96, 60% pulp showed the highest preference amongst consumers. In terms of the other dependent variables, namely methanol, ethanol, titratable acidity, objective colour, total soluble solids, pH and sensory profiles of alcoholic fermented fruit beverages based on white and red wine styles. The processing conditions developed and applied in this study towards the development of alcoholic fermented beverages utilizing plums and selected berries demonstrated ways of improving the utilization of fruit commodities by developing niche products. Hence, the development of alcoholic fermented beverages utilizing (plums and selected berries) showed potential for micro agro-industries, as well as the impact on its potential role in employment creation and income generation.

Fermentering av livsmedel är något som människan gjort sedan de första mänskliga civilisationerna. Dessa uråldriga metoder används än idag och fermenterade drycker har under senare årtionden fått en ökad acceptans världen över och anses idag vara en trend. Syftet är att studera studenters attityder till fermenterade drycker med låg eller ingen alkoholhalt, med fokus på kännedomen om denna typ av drycker, varför och när dessa konsumeras, samt vid vilka sammanhang/tillfällen. I studien har en kortare inledande enkät distribuerats till studenter vid Högskolan Kristianstad, vilken följts av individuella, semistrukturerade intervjuer. Resultaten visade på stora skillnader i huruvida studenterna kände till och hade provat fermenterade drycker. Studenternas attityder till fermenterade drycker präglades av flera olika faktorer, exempelvis hens egna värderingar, normer och målsättningar. I enkäten visade det sig att många konsumerade fermenterade drycker för dess hälsofrämjande effekter, som ersättning till alkohol och för att testa något nytt. Detta framkom även i intervjuerna där hälsa och miljömedvetenhet var viktiga anledningar till varför fermenterade drycker konsumerades, men också nyfikenhet inför det nya. Resultaten från både enkäten och intervjuerna visade att denna typ av drycker främst konsumerades vid måltider, fester eller vid andra sociala event. Samtliga informanter var ense om att fermenterade drycker erhåller komplexa egenskaper och kanske är det just dessa karaktärsdrag som gör dryckens stora platstagande möjligt. Utifrån denna studie kan det dras en slutsats om att fermenterade drycker fyller flera roller inom kategorin låg eller icke alkoholhaltiga drycker. / Fermentation is a process that mankind has used since the first civilizations. These ancient methods are still being used today and fermented beverages has since the last few decades gained an acceptance over the world and is considered a trend. The aim of this study was to study students’ attitudes toward fermented beverages with low or no alcoholic contents, with a focus on the knowledge about these beverages, why and when they are consumed and also in what context. The study consisted of an initial shorter questionnaire which was distributed to students at the Kristianstad University, Sweden followed by an individual semi-structured interview. The results showed great variations regarding the students’ knowledge of fermented beverages and if they had tried any of these. The students’ attitudes were characterized by values and norms and the results from the questionnaire showed that many individuals consumed fermented beverages for its health-promoting effects. Instead of drinking alcoholic beverages and also to try something new. This also emerged from the interviews where health and environmental awareness were important reasons as to why fermented beverages were consumed, but also curiosity over trying something new. The results from both the questionnaire and the interviews showed that these beverages were consumed at dinner, parties or other social gatherings. All informants agreed that fermented beverages derive complex attributes and that maybe it might be these attributes that makes it possible for these beverages to take on a large audience as they do today. From this study a conclus

Orientadores: José de Assis Fonseca Faria, Adriano Gomes da Cruz / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos / Made available in DSpace on 2018-08-20T10:29:44Z (GMT). No. of bitstreams: 1 Castro_WellingtondeFreitas_D.pdf: 1296410 bytes, checksum: 49d526e153c196243566d33d07ce840d (MD5) Previous issue date: 2012 / Resumo: A demanda por alimentos probióticos tem impulsionado o desenvolvimento de novos produtos formulados. Aproveitando tal cenário, as indústrias de alimentos vêm se dedicando basicamente aos lácteos, que se mostram ser ótimos carreadores de micro-organismos probióticos. O grande volume de soro proveniente das indústrias de queijos permite a elaboração de bebidas lácteas, visando o aproveitamento de subprodutos para a alimentação humana, devido ao seu elevado potencial nutricional. Este trabalho teve por objetivo avaliar o efeito dos níveis de soro de queijo nos parâmetros de qualidade e aceitação sensorial de bebidas lácteas probióticas, em comparação a produtos comerciais não probióticos. Modelos matemáticos como Análise de Sobrevida, Mínima Diferença Significativa e Aceitação Global Média foram utilizados para ajustar os níveis de soro de queijo mais aceitáveis em formulações de bebidas lácteas. Métodos sensoriais, como Mapa Projetivo, Análise Descritiva Quantitativa e Perfil Livre foram aplicados na avaliação das bebidas formuladas. A elaboração de bebidas lácteas probióticas provou ser uma boa alternativa para as indústrias de laticínios no aproveitamento do soro proveniente da fabricação de queijos, possibilitando assim redução dos custos de produção, além de propiciar novos produtos carreadores de micro-organismos benéficos à saúde / Abstract: The demand for probiotic foods has driven the development of new formulations. Taking advantage of such scenario, the food industry has been largely devoted to dairy, which proved to be excellent vehicles for probiotic microorganisms. The large volume of whey from the cheese industry has enabled the development of dairy drinks, considering the use of products for human food with high nutritional potential. This study evaluated the effect of whey levels in the quality parameters and sensory acceptability of probiotic milk drinks, as compared to commercial non probiotic products. Mathematical models as Survival Analysis, Minimal Significant Difference, and Mean Global Acceptance were used to adjust the whey levels in the most acceptable formulated dairy beverages. Sensory methods as Projective Mapping, Quantitative Descriptive Analysis, and Free Choice were applied in the evaluation of dairy beverages. The development of probiotic dairy drinks proved to be a good alternative for the dairy industry to take advantage of the whey from the cheese-making, by reducing production costs and providing probiotic foods with recognized human health benefits / Doutorado / Tecnologia de Alimentos / Doutor em Tecnologia de Alimentos

Egtvedflickans bärmölska – om bryggprocessen för fermenterade blanddrycker under sydskandinavisk äldre bronsålder. The Braggot of the Egtved Girl- the brewing process of Early Bronze Age mixed fermented beverages in South Scandinavia. Abstract The residues of an alcoholic drink containing honey, wheat, myrica gale and berries in the oak log coffin of the Egtved barrow from the Early Bronze Age in Denmark is an example of prehistoric European mixed fermented beverages. Drawing analog inference from archaeological, historic and ethnographic sources by method of Chaine Operatoire this thesis constructs a schematic model of the brewing process of this drink and classify it as an ancient braggot. Keywords: Chaine Operatoire, ancient beer, analogy, mead, nordic grog, boiling stones.