“…Hydrogels are obtained from biodegradable polymers, usually originating from natural sources (proteins and carbohydrates). However, several synthetic polymers used in the food industry present biodegradability, such as poly(aldehyde guluronate) (Lee, Bouhadir, & Mooney, 2000), polyanhydrides, poly(N-Isopropyl Acrylamide) (Pourjamal, Fathi, Entezami, Hasanzadeh, & Shadjou, 2016), poly Bao et al (2011), Ma et al (2015), Cuadri et al (2016), Demitri et al (2016), Feng et al (2014), Guilherme et al (2015), Huang et al (2015), Chen et al (2015), Thombare et al (2016), Wang and Wang (2010), Wang et al (2013), Zheng et al (2007), Zohuriaan-Mehr et al (2009) Non-biodegradable Byard et al (2017), Feng et al, 2014, Lee et al (2000, Pourjamal et al (2016) Polymeric composition • Sensitive to physical factors such as temperature, pressure, photo irradiation, and electric/magnetic field. Argin et al (2014), Berger et al (2004), Bueno et al (2013), Chang et al (2010), Kalia (2016) (acrylic acid) (Feng et al, 2014), poly(lactic acid), poly(glycolic acid), acrylamide, 2-hydroxyethyl methacrylate, methoxyl poly(ethylene glycol) (MPEG), 2-hydroxypropyl methacrylate (HPMA) and acrylamide (Byard, Williams, McKenzie, Blanazs, & Armes, 2017).…”