Browsing by Issue Date, starting with "2021-01-26"
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- Formulação da estratégia de employer branding para o hotel Wyndham Grand AlgarvePublication . Ferreira, Catarina Castilho; Santos, José António C.; Almeida, Nicolau MiguelO presente relatório de estágio reflete o trabalho realizado no estágio iniciado em novembro de 2019 e concluído em fevereiro de 2020 (480 horas) no departamento de Marketing do hotel Wyndham Grand Algarve (WGA), assim como o trabalho de investigação concebido para responder ao seguinte problema de interesse para o hotel: Qual a perceção que os colaboradores têm do hotel WGA como local para trabalhar e da atratividade da sua marca empregadora? De modo a dar resposta a esta questão, foram definidos os seguintes objetivos gerais: aferir a perceção dos colaboradores sobre o WGA como local para trabalhar; aferir a perceção dos colaboradores sobre a atratividade da Employer Branding (EB) do WGA; formular a estratégia de EB para o WGA. Foram ainda definidos objetivos específicos para dar resposta ao problema através de diferentes etapas. Em ter-mos metodológicos foi aplicado um questionário aos colaboradores do hotel, contendo perguntas fechadas e abertas, e obtido uma taxa de resposta de 47%. As perguntas fechadas foram analisadas através de estatística descritiva e as abertas através de análise de conteúdo. Os resultados demonstram que os colaboradores têm na sua maioria a perceção de que o WGA é um bom local para trabalhar e que é uma marca empregadora atraente. A partir destes resultados e da análise de conteúdo das questões abertas, que permitiram melhor entender as expetativas e os anseios dos colaboradores, foi formulada a estratégia de marca empregadora para o WGA. Tal visa desenvolver uma marca empregadora ainda mais atrativa para atuais e futuros colaboradores, baseada em forte identidade, reputação e cultura organizacional, e torná-la uma referência no mercado e competitiva na captação de talentos. Os resultados demonstram a importância da EB na retenção, atração e recrutamento de colaboradores, contribuindo para a sua satisfação e motivação, e para a atratividade e competitividade da EB.
- Effects of vacuum and modified atmosphere packaging on the quality and shelf-life of gray triggerfish (Balistes capriscus) filletsPublication . Esteves, Eduardo; Guerra, Luís; Aníbal, JaimeSeafood products are perceived as healthy foods. However, several species of seafood are still not fully utilized for different reasons or can be valued outside the original locale, if issues with the short shelf-life and/or the preparation/presentation form are overcome, e.g., gray triggerfish, Balistes capriscus. Consumed mostly fresh, its flesh is of excellent quality. We studied the effect of different types of packaging (in air (AIR), vacuum (VP), and modified atmosphere (MAP)) on physicochemical (color and texture, pH, and total volatile basic nitrogen), microbiological (total viable count, psychrotrophic, sulphide-reducing bacteria, and acid-lactic bacteria), and sensory qualities, and shelf-life of gray triggerfish fillets stored at refrigeration temperature for 15 days. The samples were analyzed on days 0 (fresh fish), 5, 10 (8 and 12 for sensory analysis), and 15 after filleting and packaging. During the trial, fillets became lighter (increased L*) and yellower (b* >> 0) with time of storage. Distinct patterns were observed for pH among treatments. Unexpectedly, the increasing trend observed in the texturometer-derived hardness of VP and MAP fillets, contrasted with the sensory assessment, wherein panelists perceived a clear softening of fillets. VP delayed and MAP inhibited the increase in TVB-N contents of fillets compared to fillets packed in AIR. Total viable count and psychrothropic bacteria of fillets in AIR exceeded the conventional limit of 7 log(CFU/g) on day 10, while in fillets packed in VP and MAP, their abundance remained below that limit during the trial. The organoleptic attributes of fillets perceived by a sensory panel changed significantly in all treatments during the storage trial. Willingness to consume the fillets decreased constantly in AIR and MAP, but not in VP fillets. Considering primarily sensory, but also biochemical and microbiological parameters, namely panelists’ rejection, total volatile basic nitrogen content, and total viable count and psychrotrophic bacteria abundance, the shelf-life of fillets packed in air was eight days. Vacuum and modified atmosphere packaging extended the shelf-life to 15 and 12 days, and thus can add value to this product. Future research regarding the VP and MAP of gray triggerfish fillets could involve the optimization of mixtures of gases use and/or the application of combined processes.
- Chemical composition, antioxidant, and α-Glucosidase-inhibiting activity of aqueous and hydroethanolic extracts of traditional antidiabetics from Croatian ethnomedicinePublication . Bljajić, Kristina; Brajković, Andrea; Čačić, Ana; Vujić, Lovorka; Jablan, Jasna; Saraiva de Carvalho, Isabel; Zovko Končić, MarijanaType 2 diabetes (T2D) is a chronic disease with a growing prevalence worldwide. In addition to the conventional therapy, many T2D patients use phytotherapeutic preparations. In the present study, chemical composition, antioxidant, and α-glucosidase inhibiting activity of traditional antidiabetics from Croatian ethnomedicine (Achillea millefolium, Artemisia absinthium, Centaurium erythraea, Morusalba, Phaseolus vulgaris, Sambucus nigra, and Salvia officinalis) were assessed. The efficacy of water and 80% ethanol as extraction solvents for bioactive constituents was compared. HPLC analysis revealed that the prepared extracts were rich in phenols, especially rutin, ferulic, and chlorogenic acid. Antiradical (against DPPH and ABTS radicals), reducing (towards Mo6+ and Fe3+ ions), and enzyme inhibiting properties were in linear correlation with the content of phenolic constituents. Ethanolic extracts, richer in phenolic substances, showed dominant efficacy in those assays. Aqueous extracts, on the other hand, were better Fe2+ ion chelators and more active in the β-carotene linoleic acid assay. Extracts from S. officinalis and A. millefolium were particularly active antioxidants and α-glucosidase inhibitors. A. absinthium, another potent α-glucosidase inhibitor, contained chromium, a mineral that promotes insulin action. The investigated plants contained significant amounts of minerals useful in management of T2D, with negligible amounts of heavy metals deeming them safe for human use.