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Development of pectin–eugenol emulsion coatings for inhibition of Listeria on webbed‐rind melons: a comparative study with fig and citrus pectins
International Journal of Food Science & Technology ( IF 2.6 ) Pub Date : 2019-12-06 , DOI: 10.1111/ijfs.14458 Elif Çavdaroğlu 1 , Stefano Farris 2 , Ahmet Yemenicioğlu 1
International Journal of Food Science & Technology ( IF 2.6 ) Pub Date : 2019-12-06 , DOI: 10.1111/ijfs.14458 Elif Çavdaroğlu 1 , Stefano Farris 2 , Ahmet Yemenicioğlu 1
Affiliation
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The objective of this study was to employ pectin‐based antimicrobial coatings for inhibition of Listeria on surfaces of whole webbed‐rind melons that cause frequent outbreaks of listeriosis. For this purpose, emulsion‐based coatings were developed using citrus pectin (CPEC) or pectin extracted from processing wastes of sun‐dried figs (FPEC) and eugenol (EUG). The emulsions of FPEC and CPEC with EUG (droplet size range: 1.99–11.22 µm) were highly stable for minimum 10 days at 10 °C. The FPEC‐EUG films showed higher flexibility and degree of wettability than CPEC‐EUG films. In contrast, CPEC‐EUG films had a higher gas barrier performance against oxygen at 50% relative humidity than FPEC‐EUG films. The zone inhibition tests showed that FPEC‐EUG films are more effective against Listeria innocua than CPEC‐EUG films. However, FPEC and CPEC coatings with 2% EUG caused 2.2 and 2.7 decimal inactivation of Listeria on Galia melons within 1 week, respectively. The pectin coatings with EUG could reduce the risk of listeriosis from webbed‐rind melons.
中文翻译：
果胶-丁香酚乳剂涂层的开发，用于抑制蹼状甜瓜上的李斯特菌：无花果和柑橘果胶的对比研究
这项研究的目的是基于果胶聘请抗菌涂料的抑制李斯特菌在全蹼，果皮瓜引起李斯特菌病的频繁爆发的表面。为此，使用柑橘果胶（CPEC）或从晒干无花果（FPEC）和丁香酚（EUG）的加工废料中提取的果胶开发了乳液基涂料。带有EUG的FPEC和CPEC乳液（液滴尺寸范围：1.99–11.22 µm）在10°C的条件下至少10天具有高度稳定性。FPEC-EUG薄膜比CPEC-EUG薄膜具有更高的柔韧性和润湿性。相反，与FPEC-EUG膜相比，CPEC-EUG膜在50％相对湿度下对氧气的阻气性更高。区域抑制测试表明，FPEC-EUG膜对无毒李斯特菌更有效比CPEC-EUG影片要多。然而，具有2％EUG的FPEC和CPEC涂层在1周内分别导致加利亚瓜的李斯特氏菌失活2.2和2.7 。带有EUG的果胶涂层可以降低网状皮瓜产生李斯特菌病的风险。
更新日期：2019-12-06
中文翻译：
果胶-丁香酚乳剂涂层的开发，用于抑制蹼状甜瓜上的李斯特菌：无花果和柑橘果胶的对比研究
这项研究的目的是基于果胶聘请抗菌涂料的抑制李斯特菌在全蹼，果皮瓜引起李斯特菌病的频繁爆发的表面。为此，使用柑橘果胶（CPEC）或从晒干无花果（FPEC）和丁香酚（EUG）的加工废料中提取的果胶开发了乳液基涂料。带有EUG的FPEC和CPEC乳液（液滴尺寸范围：1.99–11.22 µm）在10°C的条件下至少10天具有高度稳定性。FPEC-EUG薄膜比CPEC-EUG薄膜具有更高的柔韧性和润湿性。相反，与FPEC-EUG膜相比，CPEC-EUG膜在50％相对湿度下对氧气的阻气性更高。区域抑制测试表明，FPEC-EUG膜对无毒李斯特菌更有效比CPEC-EUG影片要多。然而，具有2％EUG的FPEC和CPEC涂层在1周内分别导致加利亚瓜的李斯特氏菌失活2.2和2.7 。带有EUG的果胶涂层可以降低网状皮瓜产生李斯特菌病的风险。
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