The marketability of blueberries over long distances has been limited because of their highly perishability. To prolong the postharvest shelf life and conserve quality properties of blueberry, various alternatives have been evaluated. We studied the influence of gum arabic (GA) alone or GA enhanced with African baobab (AB) fruit extract on blueberry during cold storage (4 °C) for 21 days. Physico-chemical properties (e.g. pH, color, firmness, and weight loss), microbial decay, antioxidant properties, polyphenol oxidase (PPO) and peroxidase (POD) activity were investigated. The fruit treated with GA combined AB indicated a significant delay in microbial decay, firmness loss, weight loss, and color change. The treatments on blueberries resulted in better preservation of total phenols and total anthocyanins delayed the increase in total soluble solids as compared to the control. The coatings lowered the activities of PPO and POD enzymes and delayed microbial decay in coated blueberry during 21 days of storage.

中文翻译：

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非洲猴面包树果肉提取物掺入阿拉伯树胶可食用涂料对冷藏蓝莓收获后品质的影响。

由于蓝莓的高度易腐烂性，其远距离销售的市场性受到了限制。为了延长收获后的货架寿命并保存蓝莓的品质特性，已经评估了各种替代方法。我们研究了在冷藏（4°C）21天期间单独使用阿拉伯树胶（GA）或用非洲猴面包树（AB）水果提取物增强GA对蓝莓的影响。研究了理化性质（例如pH，颜色，硬度和重量减轻），微生物衰减，抗氧化剂性质，多酚氧化酶（PPO）和过氧化物酶（POD）活性。用GA联合AB处理的水果表明微生物腐烂，硬度下降，重量下降和颜色变化显着延迟。与对照相比，对蓝莓的处理导致更好地保存了总酚，总花色苷延迟了总可溶性固形物的增加。在储存的21天中，这种涂层降低了覆膜蓝莓中PPO和POD酶的活性，并延迟了微生物的腐烂。