Bioactive packaging is gaining interest in food preservation as an alternative to the incorporation of additives to food formulations. Yeast cell wall is a good candidate for the formation of biodegradable films. In this context, enzymatically hydrolysed yeast cell wall (YCW-E) and fungal extracts, containing naphtho-γ-pyrones (NGPs), were used to develop bioactive materials with antioxidant activity. Two types of ethanol fungal extracts from Aspergillus tubingensis G131 were used; a crude (CE*3) and a semi-purified (EP) extract, which presented different antioxidant capacity. Initial degradation temperature of samples with 2% of CE*3 extract were decreased in comparison to the control. Mechanical properties were significantly affected by the incorporation of the fungal extracts, those samples with CE*3 extract presented higher elongation at break due to the presence of melanins, while samples with EP extract showed higher modulus and tensile strength because of the increase in macromolecules interactions product of the hydrophobic character of the extract. Barrier properties were improved due to the low affinity to water of the extract. Antioxidant capacity of films was confirmed by the ABTS method. The addition of fungal metabolites with antioxidant properties to yeast cell wall films is a promising solution for the development of active materials for food contact application increasing shelf life of the products.

作为在食品配方中添加添加剂的替代方法，生物活性包装在食品保鲜方面引起了人们的兴趣。酵母细胞壁是可生物降解膜形成的良好候选者。在这种情况下，酶水解的酵母细胞壁（YCW-E）和含有萘-γ-吡喃酮（NGPs）的真菌提取物被用于开发具有抗氧化活性的生物活性材料。油曲霉的两种乙醇真菌提取物使用了G131；粗品（CE * 3）和半精制（EP）提取物，具有不同的抗氧化能力。与对照相比，含有2％CE * 3提取物的样品的初始降解温度降低了。掺入真菌提取物会显着影响机械性能，带有CE * 3提取物的样品由于存在黑色素而表现出较高的断裂伸长率，而带有EP *提取物的样品由于高分子相互作用的增加而显示出较高的模量和拉伸强度提取物的疏水特性的产物。由于提取物对水的亲和力低，因此改善了阻隔性能。通过ABTS方法确认了膜的抗氧化能力。