Gómez-Espinoza Daniela, Gonzalez-Calderon J A, Rivera-Vázquez Ricardo, Aguirre-Mancilla César Leobardo, Delgado-Alvarado Enrique, Herrera-May Agustín L, Pérez-Pérez Ma Cristina Irma
Departamento de Ingeniería Bioquímica, TecNM en Celaya, Celaya 38010, Mexico.
Cátedras CONACYT-Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, Mexico.
Antioxidants (Basel). 2024 Aug 25;13(9):1031. doi: 10.3390/antiox13091031.
Garambullo is a plant with little industrial application. However, garambullo contains betalains, photosensitive phytochemical compounds, which through microencapsulation can be used in chitosan-polyvinyl alcohol (PVOH) films for application in tomato coatings. These biopackages were characterized by physical tests, water vapor permeability, puncture tests, extension, color, differential scanning calorimetry (DCS), Fourier transform infrared (FTIR) spectroscopy, and antioxidant and antimicrobial activity analyses. The influence of the biopackages on the tomato coatings was measured using parameters such as minimum weight loss close to 2% at day 9, pH of 4.6, Brix of 5.5, titratable acidity of 1 g acid/100 mL sample, and shelf life of up to 18 days. The biopackages containing betalain microcapsules had a water vapor permeability of 2 × 10 g/h·m·Pa and an elongation of 5 ± 0.5%, indicating that the package did not stretch. The deformation at the breaking point for the package without and with microcapsules was 0.569 and 1.620, respectively. With respect to color, adding white microcapsules and betalains can cause the material to darken, resulting in a yellowish color. Furthermore, the phenolic content was greater for the biopackages with betalains, while there was no significant difference in the antioxidant activity since the active compounds were not released. According to the in vitro results, the inhibition of was achieved on the eighth day when the active compounds were released from the microcapsules. The tomato with betalains lost 2% of its weight, and was inhibited, extending its shelf life to 18 days. The proposed biopackages have good properties as biopolymers and inhibit the presence of .
加拉姆布洛是一种工业应用较少的植物。然而，加拉姆布洛含有甜菜色素，这是一种光敏植物化学化合物，通过微囊化可用于壳聚糖 - 聚乙烯醇（PVOH）薄膜，用于番茄涂层。这些生物包装通过物理测试、水蒸气透过率、穿刺测试、拉伸、颜色、差示扫描量热法（DCS）、傅里叶变换红外（FTIR）光谱以及抗氧化和抗菌活性分析进行表征。使用诸如第9天接近2%的最小重量损失、4.6的pH值、5.5的糖度、1克酸/100毫升样品的可滴定酸度以及长达18天的保质期等参数来衡量生物包装对番茄涂层的影响。含有甜菜色素微胶囊的生物包装的水蒸气透过率为2×10克/小时·米·帕，伸长率为5±0.5%，表明该包装没有拉伸。不含微胶囊和含有微胶囊的包装在断裂点的变形分别为0.569和1.620。关于颜色，添加白色微胶囊和甜菜色素会使材料变暗，呈现淡黄色。此外，含有甜菜色素的生物包装的酚类含量更高，而抗氧化活性没有显著差异，因为活性化合物没有释放。根据体外结果，当活性化合物从微胶囊中释放出来时，在第8天实现了对[具体物质未明确]的抑制。含有甜菜色素的番茄重量损失了2%，并且[具体物质未明确]受到抑制，其保质期延长至18天。所提出的生物包装作为生物聚合物具有良好的性能，并能抑制[具体物质未明确]的存在。
