Mbonambi N P, Seke F, Mwelase S, Fawole O A
Postharvest and Agroprocessing Research Centre, Department of Botany and Plant Biotechnology University of Johannesburg Johannesburg South Africa.
South African Research Chairs Initiative in Sustainable Preservation and Agroprocessing Research University of Johannesburg Auckland Park South Africa.
Food Sci Nutr. 2025 Jul 14;13(7):e70636. doi: 10.1002/fsn3.70636. eCollection 2025 Jul.
The labour-intensive process of extracting arils from the pomegranate fruit has given rise to the demand for 'ready-to-eat' pomegranate arils due to their aesthetic appeal and convenience in consumption. However, the arils are prone to rapid quality deterioration due to various factors such as microbial contamination and moisture loss; therefore, there is a need for techniques to preserve their quality. This study, thus, evaluated the use of an (AF)-based edible coating enriched with encapsulated raspberry pomace powder (ERPP) to maintain quality and extend the shelf life of pomegranate arils (cv. Wonderful) during cold storage. Treatments included control (distilled water), AF (3%), AF (3%) + ERPP (0.3%), and AF (3%) + ERPP (0.6%). The findings demonstrated that all coating treatments showed improved effectiveness in minimizing weight loss and respiration rate while preserving texture, TSS, and TPC compared to the control treatment. Among the coating treatments, the combination of AF with 0.3% ERPP showed superior efficacy in preserving the quality of pomegranate arils compared to AF alone or AF with 0.6% ERPP. This eco-friendly coating shows potential for commercial application and warrants further investigation.
从石榴果实中提取假种皮的劳动密集型过程，因其美观和食用方便，引发了对“即食”石榴假种皮的需求。然而，由于微生物污染和水分流失等各种因素，假种皮容易迅速变质；因此，需要采用技术来保持其品质。因此，本研究评估了一种基于阿拉伯胶（AF）并富含包封树莓果渣粉（ERPP）的可食用涂层，用于在冷藏期间保持石榴假种皮（品种：Wonderful）的品质并延长其保质期。处理组包括对照组（蒸馏水）、AF（3%）、AF（3%）+ERPP（0.3%）和AF（3%）+ERPP（0.6%）。研究结果表明，与对照处理相比，所有涂层处理在减少重量损失和呼吸速率方面表现出更高的有效性，同时保持了质地、总可溶性固形物（TSS）和总酚含量（TPC）。在涂层处理中，AF与0.3% ERPP的组合在保持石榴假种皮品质方面比单独使用AF或AF与0.6% ERPP的组合表现出更高的功效。这种环保型涂层具有商业应用潜力，值得进一步研究。
