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使用香芹酚/海藻酸盐可食用涂层改善安第斯蓝莓的采后保鲜

Improvement of Andean Blueberries Postharvest Preservation Using Carvacrol/Alginate-Edible Coatings.

作者信息

Medina-Jaramillo Carolina, Quintero-Pimiento Carmen, Díaz-Díaz Darío, Goyanes Silvia, López-Córdoba Alex

机构信息

Facultad Seccional Duitama, Escuela de Administración de Empresas Agropecuarias, Universidad Pedagógica y Tecnológica de Colombia, Carrera 18 con Calle 22, Duitama 150461, Boyacá, Colombia.

Laboratorio de Polímeros y Materiales Compuestos (LP&MC), Departamento de Física, Instituto de Física de Buenos Aires (IFIBA-CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428, Argentina.

出版信息

Polymers (Basel). 2020 Oct 14;12(10):2352. doi: 10.3390/polym12102352.

DOI:10.3390/polym12102352
PMID:33066444
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7602274/
Abstract

Edible coatings are attractive strategies for blueberries postharvest preservation. In this work, carvacrol/alginate coatings were developed for application on Andean blueberries. Coating formulations were prepared based on blends of sodium alginate (2% /), carvacrol (0%, 0.03%, 0.06% or 0.09%), glycerol, and water and applied to the fruits by dip-coating. Then, the fruits were immersed in a calcium batch to induce a crosslink reaction. Changes in the physicochemical and microbiological characteristics of the blueberries were monitored during 21 days of storage at 4 °C. Coated blueberries were better preserved throughout the 21 days of storage because of their lower respiration rate and water loss, in comparison with the uncoated ones. Besides, the coatings enhanced the appearance and the gloss of the fruits. Control fruits showed a significant decrease in the firmness, while, in the coated fruits, this critical postharvest quality was preserved during the entire storage. Coating formulations with 0.09% of carvacrol was the most effective in preventing mesophilic aerobic bacteria and molds/yeasts growth on the fruits during the storage. Edible carvacrol/alginate coatings can be considered as a useful alternative to complement the benefits of refrigerated storage by delaying post-harvest spoilage of Andean blueberries.

摘要

可食用涂层是蓝莓采后保鲜的诱人策略。在这项工作中，开发了香芹酚/海藻酸盐涂层用于安第斯蓝莓。基于海藻酸钠（2%）、香芹酚（0%、0.03%、0.06%或0.09%）、甘油和水的混合物制备涂层配方，并通过浸涂法将其应用于果实。然后，将果实浸入钙液中以引发交联反应。在4℃下储存21天期间监测蓝莓的理化和微生物特性变化。与未涂层的蓝莓相比，涂层蓝莓在整个21天的储存期内保存得更好，因为它们的呼吸速率和水分损失更低。此外，涂层增强了果实的外观和光泽。对照果实的硬度显著下降，而在涂层果实中，这一关键的采后品质在整个储存期间得以保持。含0.09%香芹酚的涂层配方在储存期间对防止果实上的嗜温需氧细菌和霉菌/酵母菌生长最为有效。可食用的香芹酚/海藻酸盐涂层可被视为一种有用的替代方法，通过延缓安第斯蓝莓的采后腐败来补充冷藏储存的益处。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/028a003bf068/polymers-12-02352-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/2208fc5edb8b/polymers-12-02352-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/d285d043c9cd/polymers-12-02352-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/1772c9893e63/polymers-12-02352-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/5b5ceaaac11c/polymers-12-02352-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/132646321c5d/polymers-12-02352-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/77d763c5112e/polymers-12-02352-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/5c325837a648/polymers-12-02352-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/8a455af3ca0e/polymers-12-02352-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/028a003bf068/polymers-12-02352-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/2208fc5edb8b/polymers-12-02352-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/d285d043c9cd/polymers-12-02352-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/1772c9893e63/polymers-12-02352-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/5b5ceaaac11c/polymers-12-02352-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/132646321c5d/polymers-12-02352-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/77d763c5112e/polymers-12-02352-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/5c325837a648/polymers-12-02352-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/8a455af3ca0e/polymers-12-02352-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/304a/7602274/028a003bf068/polymers-12-02352-g009.jpg

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