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Natural fiber, gas permeability, Agave leaf, natural film, Mexican traditional film, Mexican gastronomy Keywords: Agave leaf; natural film; natural fiber; gas permeability; Mexican traditional film; Mexican gastronomy EN Agave leaf natural film natural fiber gas permeability Mexican traditional film Mexican gastronomy 6902 6908 7 11/17/22 20221215 NES 221215 Introduction Agave is one of the most important natural resources in Mexico in economic, social, and agro-ecological terms, it is a crop used mainly for the production of alcoholic beverages. The mixiote leaf also known as I mixiote paper i is the epidermis of the agave leaf, this is carefully separated from the plant to obtain a translucent and thin membrane. [Extracted from the article]

The objective of this work is to prepare biodegradable films of corn starch, replacing a part of the distilled water used in the formulation of the filmogenic solution with an aqueous extract of Hibiscus sabdariffa L. (HSE) and evaluate its functional properties and antimicrobial capacity. The films are made by casting method, adding different HSE:water volume ratios: 100:0, 75:25, 50:50, 25:75, and 0:100 as control. All films with HSE showed an antimicrobial effect, giving positive results against Listeria monocytogenes, Staphylococcus aureus, Salmonella spp., and Escherichia coli. It is observed that, with the increase in the proportion of HSE, the films are more manageable and glossy than those of starch alone and a more intense red color as the extract content increased, significantly improving its mechanical properties, mainly when the HSE content is above 25% on the filmogenic solution. Likewise, the addition of the extract significantly improved the water vapor barrier capacity of the films. According to the results obtained in this study, corn starch films with aqueous extract of H. sabdariffa are an excellent alternative as a biodegradable packaging material for the food industry, with good functional properties and antimicrobial capacity. [ABSTRACT FROM AUTHOR]