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Characterizations of the pullulan/sodium alginate coatings incorporated with sodium silicate and EDTA-2Na and the antifungal effect on citrus green mold

文献类型： 外文期刊

作者： Li, Qianrun 1 ; Liu, Qianyi 1 ; Hu, Xiaomei 1 ; Guo, Xiaoqiang 2 ; Chen, Chuanwu 2 ; Long, Chao-an 1 ;

作者机构： 1.Huazhong Agr Univ, Natl R&D Ctr Citrus Preservat, Natl Ctr Citrus Breeding, Natl Key Lab Germplasm Innovat & Utilizat Hort Cro, Wuhan 430070, Peoples R China

2.Guangxi Acad Specialty Crops, Guangxi Key Lab Germplasm Innovat & Utilizat Speci, Guilin 541004, Peoples R China

3.Huazhong Agr Univ, Shenzhen Inst Nutr & Hlth, Wuhan 430070, Peoples R China

4.Chinese Acad Agr Sci, Shenzhen Branch, Guangdong Lab Lingnan Modern Agr, Genome Anal Lab,Minist Agr,Agr Genom Inst Shenzhen, Shenzhen 518000, Peoples R China

关键词： Pullulan; Sodium alginate; Sodium silicate; EDTA-2Na; Antifungal; Citrus

期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：5.1； 五年影响因子：4.7 ）

ISSN： 0026-265X

年卷期： 2024 年 206 卷

页码：

收录情况： SCI

摘要： Citrus has suffered great losses from postharvest fungal diseases. The strategy of polysaccharide-based coating combined with antimicrobial salts was introduced to preserve citrus and control green mold. Sodium silicate and ethylene diamine tetraacetic acid-2Na (EDTA-2Na) (SE) were incorporated with pullulan (PUL)/sodium alginate (SA) solutions to fabricate PSA-SE systems. The results indicated that the PSA-SE films had good biocompatibility based on hydrogen bonds and showed uniform and dense. The molecular of PUL and SA were assembled through entanglement to form a network structure and the surface roughness of the PSA-SE films increased with the addition of SA. The P(3)SA(2)-SE film indicated appropriate tensile strength and elongation at break, as well as the lowest water vapor permeability. The carbon dioxide and oxygen permeability and dissolution of P(3)SA(2)-SE film were at low values. The P(3)SA(2)-SE film had the highest water contact angle (66 degrees). With the addition of SA, the absorbance of the PSA-SE films increased, which was conducive to light blocking. The antifungal experiments revealed that the P(3)SA(2)-SE coating showed a significant effect on controlling citrus green mold, especially in Citrus sinensis Osbeck 'Lane Late' almost completely inhibited Penicillium digitatum (P

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