In this study, ethylene vinyl alcohol copolymer (EVOH) and polypropylene/polyethylene (PP/PE) films combined with MAP packaging were developed to enhance the shelf-life of green and white asparagus spears. The scope of the research included measurements of weight loss, pH, acidity, color, texture, and sensory analysis as indicators of green and white asparagus spear quality for up to 17 days of storage at 2 and 10 °C. The application of modified atmosphere packaging combined with EVOH-based packaging material and refrigeration at 2 °C promoted a reduction in asparagus weight loss, preventing changes in color and texture as well as sensory quality, thereby extending the shelf-life of the asparagus. According to the obtained results, it was possible to maintain good quality of green and white asparagus for up to 17 and 10 days, respectively, when packed in MAP using EVOH-based packaging stored at 2 °C. Asparagus stored in packaging with PP/PE film showed lower quality during storage at 2 and 10 °C. These results suggest that EVOH films are potential candidates for advanced packaging materials for the asparagus packaging application.

中文翻译：

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MAP和乙烯-乙烯醇共聚物（EVOH）的应用可延长绿色和白色芦笋（Asparagus officinalis L.）矛的保质期

在这项研究中，结合了MAP包装的乙烯乙烯醇共聚物（EVOH）和聚丙烯/聚乙烯（PP / PE）薄膜被开发出来，以延长绿色和白色芦笋矛的保质期。研究范围包括重量减轻，pH，酸度，颜色，质地和感官分析的测量，作为绿芦笋和白芦笋矛头质量的指标，可在2和10°C下保存长达17天。气调包装与基于EVOH的包装材料结合使用以及在2°C的冷藏条件下的应用促进了芦笋重量的减少，防止了颜色和质地以及感官质量的变化，从而延长了芦笋的保质期。根据获得的结果，可以分别在长达17天和10天的时间内保持绿芦笋和白芦笋的良好品质，使用在2°C下存储的基于EVOH的包装包装在MAP中。在2和10°C下储存时，用PP / PE膜包装的芦笋质量较低。这些结果表明，EVOH薄膜是用于芦笋包装应用的高级包装材料的潜在候选材料。