Jahan Sazia, Gomasta Joydeb, Hassan Jahidul, Rahman Md Habibur, Kader Md Abdul, Kayesh Emrul
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
Heliyon. 2024 Dec 16;11(1):e41293. doi: 10.1016/j.heliyon.2024.e41293. eCollection 2025 Jan 15.
Papaya ( L.) is a climacteric fruit which lose quality and shelf life quickly due to physiological decay and microbial infection after harvest. The study was conducted to evaluate newly applied clybio formulation (0.2 %) along with the existing effective concentration of chitosan (1 %), aloevera gel (50 %), seaweed extract (1 %) and uncoated papaya (control) fruits on post-harvest physicochemical properties and disease incidence when stored at 25 ± 1 °C and 85-90 % relative humidity. Quality parameters were available up to 12 days of storage (DAS) for chitosan and clybio treated papaya where it was 9 DAS for aloevera gel and seaweed treated papaya and 6 DAS for control papaya. Before decay of all the coated papaya at 9 DAS, chitosan (1 %) performed superior in retaining maximum reducing sugar (0.77 %, 1.41 % and 3.85 % more than aloevera, seaweed and clybio application, respectively), β-carotene (10.94 %, 12.5 % and 9.89 % greater than aloevera, seaweed and clybio coatings, respectively), total flavonoids content (18.36 %, 29.81 % and 25.29 % better than aloevera, seaweed and clybio treatments, respectively), total antioxidant activity (21.85 %, 68.2 % and 47.91 % than noted in aloevera, seaweed and clybio formulations, respectively) and potassium content (3.14 % and 9.32 % than aloevera and clybio treatments, respectively). In addition, clybio gave better results over chitosan up to completion of shelf life (12 DAS) such as retention of ascorbic acid (6.21 %), non-reducing sugar (13.48 %), magnesium content (8.31 %) and disease incidence (20 %). Thus, besides preserving nutraceutical property, chitosan and clybio coated papaya remained edible for further 6 days compared to control, and 3 days over aloevera gel and seaweed extract treatment. These findings suggest the use of chitosan and clybio formulation for preserving quality parameters and extending the storage life of papaya.
番木瓜（L.）是一种呼吸跃变型果实，采后由于生理衰败和微生物感染，品质和货架期迅速下降。本研究旨在评估新应用的克莱比奥制剂（0.2%）以及壳聚糖（1%）、芦荟凝胶（50%）、海藻提取物（1%）的现有有效浓度和未涂膜番木瓜（对照）果实，在25±1°C和85 - 90%相对湿度下贮藏时的采后理化性质和发病率。壳聚糖和克莱比奥处理的番木瓜在贮藏12天（贮藏天数，DAS）时可获得品质参数，芦荟凝胶和海藻处理的番木瓜为9 DAS，对照番木瓜为6 DAS。在所有涂膜番木瓜于9 DAS腐烂之前，壳聚糖（1%）在保留最大还原糖（分别比芦荟、海藻和克莱比奥处理多0.77%、1.41%和3.85%）、β - 胡萝卜素（分别比芦荟、海藻和克莱比奥涂膜多10.94%、12.5%和9.89%）、总黄酮含量（分别比芦荟、海藻和克莱比奥处理好18.36%、29.81%和25.29%）、总抗氧化活性（分别比芦荟、海藻和克莱比奥制剂高21.85%、68.2%和47.91%）以及钾含量（分别比芦荟和克莱比奥处理高3.14%和9.32%）方面表现更优。此外，在货架期结束（12 DAS）前，克莱比奥在保留抗坏血酸（6.21%）、非还原糖（13.48%）、镁含量（8.31%）和发病率（20%）方面比壳聚糖效果更好。因此，除了保持营养特性外，与对照相比，壳聚糖和克莱比奥涂膜的番木瓜还能多保持6天可食用状态，比芦荟凝胶和海藻提取物处理多3天。这些研究结果表明壳聚糖和克莱比奥制剂可用于保持番木瓜的品质参数并延长其贮藏寿命。
