Pinedo-Guerrero Zeus H, Hernández-Fuentes Alma Delia, Ortega-Ortiz Hortensia, Benavides-Mendoza Adalberto, Cadenas-Pliego Gregorio, Juárez-Maldonado And Antonio
Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, 25315 Saltillo, Coahuila, México.
Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo, Tulancingo, 43600 Hidalgo, México.
Molecules. 2017 Jun 2;22(6):926. doi: 10.3390/molecules22060926.
Peppers are consumed all over the world due to the flavor, aroma, and color that they add to food. Additionally, they play a role in human health, as they contain a high concentration of bioactive compounds and antioxidants. The treatments used were an absolute control, Cs-PVA, and four treatments with 0.02, 0.2, 2, and 10 mg (nCu) g (Cs-PVA). The application of Cu nanoparticles in chitosan-PVA hydrogels increases the content of capsaicin by up to 51% compared to the control. This application also increases the content of antioxidants ABTS [2,2'-azino-bis (3-ethylbenzothiazolin-6-sulfonic acid)] and DPPH (2,2-diphenyl-1-picrylhydrazyl), total phenols and flavonoids (4%, 6.6%, 5.9%, and 12.7%, respectively) in jalapeño pepper fruits stored for 15 days at room temperature; under refrigeration, it increases DPPH antioxidants, total phenols, and flavonoids (23.9%, 1.54%, and 17.2%, respectively). The application of Cu nanoparticles in chitosan-PVA hydrogels, even when applied to the substrate, not only has an effect on the development of the jalapeño pepper crop, but also modifies the post-harvest characteristics of the jalapeño pepper fruits.
由于辣椒能为食物增添风味、香气和色泽，因而在全球范围内被广泛食用。此外，辣椒对人体健康有益，因为它们含有高浓度的生物活性化合物和抗氧化剂。所采用的处理方式包括一个绝对对照、壳聚糖-聚乙烯醇（Cs-PVA），以及四种分别添加0.02、0.2、2和10毫克（纳米铜，nCu）/克（壳聚糖-聚乙烯醇，Cs-PVA）的处理。与对照相比，在壳聚糖-聚乙烯醇水凝胶中应用铜纳米颗粒可使辣椒素含量提高多达51%。这种应用还能增加在室温下储存15天的墨西哥胡椒果实中的抗氧化剂ABTS[2,2'-联氮-双-(3-乙基苯并噻唑啉-6-磺酸)]和DPPH（2,2-二苯基-1-苦基肼）、总酚和类黄酮的含量（分别提高4%、6.6%、5.9%和12.7%）；在冷藏条件下，可增加DPPH抗氧化剂、总酚和类黄酮的含量（分别提高23.9%、1.54%和17.2%）。在壳聚糖-聚乙烯醇水凝胶中应用铜纳米颗粒，即使是应用于基质，不仅对墨西哥胡椒作物的生长有影响，而且还会改变墨西哥胡椒果实的采后特性。
