Active coatings of thermoplastic starch and chitosan with alpha-tocopherol/bentonite for special green coffee beans

Properties of films and coatings added of tocopherol for food packaging: tool-based review for systematic reviews and bibliometric analysis

“…Ferreira et al. (2021), who produced thermoplastic starch and chitosan films with α-tocopherol/bentonite, observed a strong link between tocopherol and the other ingredients of the formulations that contained tocopherol and attributed it to the changes in the mass loss peaks.…”

“…It is essential to know TGA/DSC properties not to overheat or even reach the polymeric melting point when manufacturing the film or coating. In general, the works that evaluated the thermogravimetry of the films (TGA) (P erez-C ordoba et al, 2018;de Carvalho et al, 2019;Franco et al, 2019;Hamid et al, 2019b;Villasante et al, 2019;Lopes et al, 2020;Mellinas et al, 2020;Sun et al, , 2021Encalada et al, 2021;Ferreira et al, 2021;Jiang et al, 2021) do not observe thermal alterations attributed to the addition of tocopherol. However, Villasante et al (2019) reported improved thermal stability of poly (α-Dodecyl-Glutamate) (PAAG-12) films added with α-tocopherol and stated that this allowed processability at higher film temperatures.…”

Interaction between thermoplastic starch and cellulose in poly (butylene adipate-co-terephthalate) composites with cellulosic fillers

“…15,19 Starch granules can undergo a specific thermomechanical process (for example extrusion) in an excess of water with the aid of plasticizers to obtain thermoplastic starch (TPS) 20 which can replace polymers or can be used as loose fillers in many applications such as food packaging, 21 compostable foams, 22 disposable diapers 23 or even coatings. 24 In this context, addition of cellulose to polyester matrices is a subject of importance, 46 but the production of a composite material with good mechanical and physico-chemical properties strongly depends on the interphase. 47 In fact, the interaction between the matrix and the filler creates an interphase with chemical and mechanical characteristics different from those of the composite components.…”

“…15, 19 Starch granules can undergo a specific thermomechanical process (for example extrusion) in an excess of water with the aid of plasticizers to obtain thermoplastic starch (TPS) 20 which can replace polymers or can be used as loose fillers in many applications such as food packaging, 21 compostable foams, 22 disposable diapers 23 or even coatings. 24…”

Efeito de coberturas comestíveis a base de quitosana e extrato de romã em parâmetros de qualidade de queijo coalho

“…A exemplo, tem-se então a quitosana, que consiste em um produto natural derivado da quitina e produzido a partir de resíduos de crustáceos marinhos ou por algumas espécies fúngicas, possuindo caráter não tóxico, biodegradável e biocompatível com sistemas biológicos [10], alta disponibilidade, com propriedades distintas, inclusive antimicrobianas, e excelente capacidade de formação de filme, apresentando-se como um dos polissacarídeos mais estudados na aplicação de embalagens de alimentos [11]. Pesquisas vêm sendo desenvolvidas na produção de coberturas à base de quitosana para alimentos diversos, como morango [12,13], café [14], couve folhas [15], manga [16], e também em produtos de origem animal, como carne [17] e queijo [18]. Sobre este último, diferentes tipos têm sido estudados, sendo observada a eficiência na aplicação de tal cobertura com a finalidade de prolongar a vida útil dos produtos [19].…”