“…The potential use of α-tocopherol as antioxidant coating in film has been widely investigated, where the hydrophobic compounds of α-tocopherol exhibit antioxidant activity and improve the film properties when incorporated into biodegradable films (Martins, Cerqueira, & Vicente, 2012;Noronha, De Carvalho, Lino, & Barreto, 2014). Several studies showed that the formulation of natural antioxidant extracts from mango peel (Kanatt & Chawla, 2018), propolis (Jafari, Kargozari, Ranjbar, Rostami, & Hamedi, 2018), and Betula pendula (Gallego, Gordon, Segovia, & Almajano Pablos, 2016) with biopolymer are able to inhibit the oxidative deterioration and retains the freshness in muscle foods. Several studies showed that the formulation of natural antioxidant extracts from mango peel (Kanatt & Chawla, 2018), propolis (Jafari, Kargozari, Ranjbar, Rostami, & Hamedi, 2018), and Betula pendula (Gallego, Gordon, Segovia, & Almajano Pablos, 2016) with biopolymer are able to inhibit the oxidative deterioration and retains the freshness in muscle foods.…”