Silva-Jara Jorge Manuel, García-Vera Ismael, Morales-Burgos Ana María, Hinojosa-Ventura Gabriela, Macías-Rodríguez María Esther, Pérez-Montaño Julia Aurora, Villagrán Zuami, Anaya-Esparza Luis Miguel, Velázquez-Carriles Carlos Arnulfo
Departamento de Farmacobiología, Universidad de Guadalajara, CUCEI, Blvd. Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Jalisco, Mexico.
Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Culiacán 80013, Sinaloa, Mexico.
Polymers (Basel). 2025 Jun 12;17(12):1632. doi: 10.3390/polym17121632.
This research focused on the development of an edible coat made of corn waste arabinoxylan enriched with nanohybrids of zinc layered hydroxide salt and thymol (ZnHSL, ZnHSL-T). The crystallographic phase was confirmed with XRD (ICDD card 07-0155) and SEM. Filmogenic solutions prepared with the polysaccharide (AX) containing thymol (T), ZnHSL, and ZnHSL-T (AXT, AXH, and AXHT, respectively) were characterized by FTIR spectroscopy, color, thickness, transparency, and moisture content, where AXHT exhibited the thinnest layer. Furthermore, the antioxidant activity of the coatings was evaluated by the inhibition of ABTS radical, proving that thymol was present in the filmogenic solutions with inhibitions of 90%. Also, edible coatings were applied on cherry tomatoes ( var. ) and stored for 12 days, a period during which physicochemical properties (weight loss, color, lycopene content, soluble solids, pH, and titratable acidity) and survival (serovar Enteritidis, Typhimurium, and Montevideo) were evaluated. Results demonstrated that AXHT had less weight loss than the control, and the other physicochemical properties of tomatoes were preserved. Regarding pathogen adherence, AXHT reduced the bacterial survival for Enteritidis, Typhimurium, and Montevideo in 25, 30, and 45%, respectively, by day 12. The findings of this research demonstrate the application of nanotechnology to biopolymers, enabling the production of safer foods with acceptable quality parameters for consumers.
本研究聚焦于开发一种可食用涂层，该涂层由富含锌层状氢氧化物盐和百里香酚（ZnHSL、ZnHSL-T）纳米杂化物的玉米废料阿拉伯木聚糖制成。通过XRD（ICDD卡片07-0155）和扫描电子显微镜确认了晶体相。用含有百里香酚（T）、ZnHSL和ZnHSL-T的多糖（AX）制备的成膜溶液（分别为AXT、AXH和AXHT）通过傅里叶变换红外光谱、颜色、厚度、透明度和水分含量进行表征，其中AXHT表现出最薄的层。此外，通过抑制ABTS自由基评估了涂层的抗氧化活性，证明成膜溶液中存在百里香酚，抑制率为90%。还将可食用涂层应用于樱桃番茄（品种）并储存12天，在此期间评估了其理化性质（失重、颜色、番茄红素含量、可溶性固形物、pH值和可滴定酸度）和微生物存活情况（肠炎沙门氏菌、鼠伤寒沙门氏菌和蒙得维的亚沙门氏菌）。结果表明，AXHT的失重比对照少，并且番茄的其他理化性质得以保留。关于病原体附着，到第12天，AXHT分别使肠炎沙门氏菌、鼠伤寒沙门氏菌和蒙得维的亚沙门氏菌的细菌存活率降低了25%、30%和45%。本研究结果证明了纳米技术在生物聚合物中的应用，能够生产出对消费者来说质量参数可接受的更安全食品。
