ABSTRACT
Xylitol is considered as one of the top relevant biorefinery sugar-derived products due to its interesting properties and its use has already been approved in more than forty countries. This polyol is mainly recognized in the food sector due to its sweetness equivalent to sucrose but with a significantly lower glycemic index. A great variety of products formulated with xylitol can be found in the market, being most industrially applied in chewing gum production. However, xylitol has others interesting properties, with several clinical applications, acting both on the prevention and treatment of diseases, such as cardiovascular diseases, otitis and diabetes. This chapter comprehensively presents the established and in development xylitol applications, from food to medical sector, including recently discovered COVID-19 treatment potential, and chemical industries applications, exploring xylitol-based materials and its use on tissue-engineering. In addition, xylitol safety and side effects are explored, including the main policies regarding its use. © Springer Nature Switzerland AG 2022. All rights reserved.
ABSTRACT
Due to the COVID-19 health crisis that afflicted the world in early 2020, language teaching and learning courses in Brazil have (re) created teaching strategies for online offer. In this text, we present the teaching-learning strategies developed, in 2020, by the project Portuguese as a Host Language for Venezuelans, offered by the Center for Languages and Teacher Development of the Faculty of Sciences and Letters of Unesp in Araraquara. The project aimed to offer, free of charge, emergency and remote teaching of Portuguese, Brazilian variant, to Venezuelan students, both for adults and children, who were living in the interior of Sao Paulo. This text is divided into three parts: in the first, we bring the trajectory of classroom teaching to online;in the second, we describe the teaching strategies and present the profile of the students;and in the third, the assessment they made about the teaching strategies.