Síntesis de biopelículas a partir de almidón de yuca-hidrolato de la hoja de tabaco (Nicotiana Tabacum) para la conservación de la fresa (Fragaria sp. variedad Albión).

Abstract

In the present investigation, cassava residues were used, a source that contributes to inadequate post-harvest management. Likewise, tobacco leaves were used, which have experienced a decrease in the market due to their toxic properties; However, it stands out for its antioxidant capacities, which makes it a material of interest for post-harvest study. With the aim of efficiently using resources, starch was extracted from cassava residues, obtaining a yield of 81.6%. The starch obtained showed a content of 17.03% amylose and 82.96% amylopectin. The characterization of this starch was carried out using TGA and ATR-FTIR analysis techniques. At the same time, the obtaining and characterization of the tobacco hydrosol was carried out. This hydrosol was characterized by UV-VIS, ATR-FTIR and CG-MS. The results demonstrated the absence of nicotine in the tobacco hydrosol, consolidating its profile and specific properties. Subsequently, the synthesis of biofilms was carried out using the starch from cassava residues and the hydrosol from tobacco leaves. The detailed characterization of these biofilms was carried out using TGA, ATR-FTIR and UV-VIS techniques, highlighting their antioxidant activity. Finally, application tests of these biofilms were carried out on strawberries, showing that they retained parameters such as pH, color, °Brix and chemical compounds. This finding shows an extension of the useful life of the strawberries.