Fecha de publicación: 22/05/2020 Fuente: WIPO "propolis" The present invention is related to use of propolis, which is a multifunctional bee product with antiviral, anticarcinogenic, antibacterial, anti-inflammatory, antioxidant, antihepatotoxic and antifungal activity; in producing of sugar, sweetener and sugar-free chewing gum by purifying in resin form with a new method.