Broccoli heads are typically packaged and marketed in petroleum-based heat-shrinkable or stretch-cling films that are not biodegradables. These types of films are not compatible with global strategies to reduce plastics waste. One of these strategies is development of biodegradable packaging materials that can be used as an alternative food package. Therefore, a biodegradable stretch-cling film, based on poly(butylene-adipate-co-terephthalate) and poly(lactide) blend (Nature Fresh®), for its application in broccoli head packaging has been studied. To determine suitability of Nature Fresh® film for broccoli packaging, broccoli heads were wrapped in this film and stored at 2°C for 35 d. Broccolis without packaging and wrapped in linear low density polyethylene (LLDPE) were used as controls. Physicochemical and sensory evaluation were determined during storage to study the effect of films on quality and shelf life of broccoli. On the one hand, broccolis packaged in Nature Fresh® and LLDPE presented similar evolution in internal atmosphere composition, color, hydroxycinnamic acids and carotenoids content and overall appearance. On the other hand, weight loss and decrease in firmness were significantly higher in broccoli wrapped in Nature Fresh® compared to LLDPE, but this had no impact on overall appearance. Nature Fresh® extended postharvest storage of broccoli heads at least 21 d at 2ºC, which is an adequate time to market. In conclusion, Nature Fresh® film was a viable packaging alternative to LLDPE to preserve broccoli quality during postharvest storage, while fulfilling global strategies to reduce plastics waste.

西兰花头通常采用不可生物降解的石油基热收缩或拉伸薄膜包装和销售。这些类型的薄膜不符合减少塑料浪费的全球战略。其中一项策略是开发可用作替代食品包装的可生物降解包装材料。因此，已经研究了一种基于聚（己二酸丁二醇酯-共聚对苯二甲酸酯）和聚（丙交酯）混合物（Nature Fresh®）的可生物降解拉伸保鲜膜，用于西兰花头部包装。为了确定 Nature Fresh® 薄膜对西兰花包装的适用性，将西兰花头包裹在该薄膜中并在 2°C 下储存 35 天。未包装并用线性低密度聚乙烯 (LLDPE) 包裹的西兰花用作对照。在储存过程中进行物理化学和感官评价，以研究薄膜对西兰花质量和保质期的影响。一方面，使用 Nature Fresh® 和 LLDPE 包装的西兰花在内部大气成分、颜色、羟基肉桂酸和类胡萝卜素含量以及整体外观方面呈现出相似的演变。另一方面，与 LLDPE 相比，用 Nature Fresh® 包裹的西兰花的重量减轻和硬度下降明显更高，但这对整体外观没有影响。Nature Fresh® 将西兰花头的采后储存时间在 2ºC 下至少延长 21 天，这是一个充足的上市时间。总之，Nature Fresh® 薄膜是 LLDPE 的可行包装替代品，可在收获后储存期间保持西兰花质量，同时实现减少塑料浪费的全球战略。