| Summary: | On behalf of a circular economy, regular plastics have been replaced by biodegradable packagings. Besides, active films have been applied to improve the shelf-life and quality of foods. In this work, blends were developed using starch as a low-cost natural polymer, mixed with poly(vinyl alcohol) due to its physical-chemical and biodegradable properties. Moreover, maleic anhydride (MaAh), cellulose-nanocrystal (CN), and nisin-z (N-Z) were added, respectively, as a compatibilizer, a mechanical-reinforce, and antimicrobial agents. The thermal stability of the films was analyzed, which blends’ melting temperature occurred around 200–207 °C, and it was influenced by CN, N-Z, and MaAh amounts. N-Z and MaAh acted against <i>S. aureus</i> and <i>P. aeruginosa</i> by compound diffusion (inhibition-halo around 1.85 and 2.18 cm); while <i>S. Choleraesuis</i> and <i>E. coli</i> were inhibited by contact. Therefore, these blends presented the potential to be used as active biodegradable packaging in the food industry.
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