Optimization of edible coating with essential oils in blueberries

IF 1.2 4区农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY

Ciencia E Agrotecnologia Pub Date : 2022-01-01 DOI:10.1590/1413-7054202246006022

Luis Márquez-Villacorta, Carla Pretell-Vásquez, María Hayayumi-Valdivia

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引用次数: 1

Abstract

ABSTRACT The application of edible coatings containing natural antimicrobials is a postharvest conservation technology in fruits that have generated interest. This research aimed the determination of the edible coating composition and the concentration of essential oil that allows optimizing the physical-mechanical characteristics for its application in the conservation of blueberries. The antimicrobial activity of the essential oils of cinnamon and lemon was determined, resulting in a minimum inhibitory concentration of 0.3% in both cases. After applying the Box Behnken design of the Response Surface Methodology (RSM), the optimal treatment for edible coating with cinnamon essential oil 0.3% was determined: aloe vera gel 18.40%, gelatin 2%, and glycerol 0.055% obtaining values of 27.95% solubility, 0.90 mm of deformation and 3.34 N of breaking strength. Likewise, the same procedure was followed for the coating with lemon essential oil 0.3%, determining as optimal 23.94% aloe vera gel, 2% gelatin, and 0.05% glycerol, getting values of 28.06% solubility, 0.45 mm deformation, and 4.53 N of breaking strength. Finally, their applications in Biloxi blueberries were validated, preserving the main physicochemical and microbiological quality attributes during 28 days of storage at 2 °C, compared, to a control sample.

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蓝莓精油食用包衣工艺的优化

含有天然抗菌剂的可食用涂层是水果采后保鲜技术的研究热点。本研究旨在测定蓝莓可食用包衣成分和精油浓度，以优化其在蓝莓保鲜中的物理机械特性。测定了肉桂精油和柠檬精油的抑菌活性，两种精油的最低抑菌浓度均为0.3%。采用响应面法(RSM)的Box Behnken设计，确定了肉桂精油0.3%的食用涂层的最佳处理方案:芦荟凝胶18.40%，明胶2%，甘油0.055%，得到溶解度27.95%，变形0.90 mm，断裂强度3.34 N。同样，对含有0.3%柠檬精油的涂层进行同样的处理，确定芦荟凝胶23.94%，明胶2%，甘油0.05%为最佳，得到溶解度28.06%，变形0.45 mm，断裂强度4.53 N。最后，对其在Biloxi蓝莓中的应用进行了验证，与对照样品相比，在2°C下保存28天，主要的物理化学和微生物品质属性保持不变。

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来源期刊

Ciencia E Agrotecnologia 农林科学-农业综合

CiteScore

2.30

自引率

9.10%

发文量

审稿时长

6-12 weeks

期刊介绍： A Ciência e Agrotecnologia, editada a cada 2 meses pela Editora da Universidade Federal de Lavras (UFLA), publica artigos científicos de interesse agropecuário elaborados por membros da comunidade científica nacional e internacional. A revista é distribuída em âmbito nacional e internacional para bibliotecas de Faculdades, Universidades e Instituições de Pesquisa.