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Browsing by Author "Rocha, Sara"

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  • Exploring circular economy in the hospitality industry
    Publication . Julião, Jorge; Gaspar, Marcelo; Tjahjono, Benny; Rocha, Sara
    This paper explores the role of Circular Economy (CE) in the hospitality industry, namely in hotels and restaurants. Today’s hospitality consumers have become more ecologically conscious than ever before, and the demand for eco-friendly products and services has grown. This has imposed many hospitality companies into the adoption of Green Practices (GP) and Circular Economy (CE) principles. In particular, CE has been gaining popularity among governments and academia. However, current research shows that CE principles are being mainly discussed and applied in production and manufacturing. The application of CE principles into services, particularly in the hospitality industry, seem to receive little attention. The paper presents the CE concept and discusses it from the perspectives of both companies and consumers and debates the adoption of green practices by the hospitality industry. Our findings indicated that the consumer awareness of sustainable issues has a direct impact on companies’ adoption of CE and GP practices. The paper also identifies that green practices are gaining increased attention in the hospitality industry, and that a wide variety of green practices are already being adopted. However, the role of CE in hospitality industry appears to be uncovered by current research and obscured in green practices. The paper, therefore, identifies a research gap and calls for further investigation in the application of CE in the hospitality industry.
    2019Conference object Restricted access Show more
  • Type 2 Diabetes mellitus alters the cargo of (poly)phenol metabolome and the oxidative status in circulating lipoproteins
    Publication . Reis, Ana; Rocha, Sara; Dias, Irundika HK.; Costa, Raquel; Soares, Raquel; Sánchez-Quesada, José Luis; Perez, Antonio; Freitas, Victor de
    The incidence of diabetes on the worldwide population has tripled in the past 5 decades. While drug-based therapies are valuable strategies to treat and ease the socio-economic burden of diabetes, nutritional strategies offer valuable alternatives to prevent and manage diabetes onset and contribute to the sustainability of health budgets. Whilst, intervention studies have shown that (poly)phenol-rich diets improve fasting glucose levels and other blood parameters, very little is known about the distribution of ingested polyphenols in circulation and the impact of diabetes on its cargo. In this study we investigate the impact of type 2 diabetes on the cargo of plasma (poly)phenols. Our results show that phenolic compounds are heterogeneously distributed in circulation though mainly transported by lipoprotein populations. We also found that diabetes has a marked effect on the phenolic content transported by VLDL resulting in the decrease in the content of flavonoids and consequently a decrease in the antioxidant capacity. In addition to the reduced bioavailability of (poly)phenol metabolites and increase of oxidative status in LDL and HDL populations in diabetes, cell-based assays show that sub-micromolar amounts of microbial (poly)phenol metabolites are able to counteract the pro-inflammatory status in glucose-challenged endothelial cells. Our findings highlight the relevance of triglyceride-rich lipoproteins in the transport and delivery of bioactive plant-based compounds to the endothelium in T2DM supporting the adoption of nutritional guidelines as an alternative strategy to drug-based therapeutic approaches.
    2023-02Journal article Open access Show more