A mixed-mode solar drying was developed to evaluate the physicochemical and colorimetric properties of Zompantle (Erythrina americana). A 2²-factorial design was used; the operation mode (mesh shade and direct) and airflow (natural convection and forced convection) were established as factors in this design. The initial moisture content in the Zompantle flower was reduced from 89.03% (w.b) to values that ranged from 3.84% to 5.84%; depending on the operation mode of the dryer, the final water activity ranged from 0.25 to 0.33. The Zompantle’s components as proteins (4.28%), antioxidant activity (18.8%), carbohydrates (4.83%), fat (0.92%), fiber (3.71%), ash (0.94%), and total soluble solids (3°Brix) increased as the water was evaporated during the drying. The increment in the Zompantle’s components depends on the operation mode; in direct mode and natural convection, the proteins, antioxidant activity, carbohydrates, fat, fiber, ash, and total soluble solids were 6.99%, 61.69%, 79.05%, 1.20%, 3.84%, 8.70%, and 45 °Brix, respectively. The total drying efficiency was 14.84% with the direct mode and natural convection (DM-NC) and 17.10% with the mesh shade and natural convection (MS-NC). The Hue angle measures the property of the color; the indirect mode and natural convection keep the hue angle close to the initial value (29.2 °). The initial chroma value of the Zompantle flower was 55.07; the indirect mode and natural convection kept high saturation (37.58); these dry conditions ensured a red color in the dehydrated Zompantle. Dehydrated Zompantle’s flowers could have several practical applications, such as an additive in traditional Mexican cuisine.

开发了混合模式的太阳干燥来评估 Zompantle（美洲刺桐）的物理化学和比色特性。使用2 ²因子设计；操作模式（网状遮阳和直接）和气流（自然对流和强制对流）被确定为该设计中的因素。 Zompantle 花的初始水分含量从 89.03% (wb) 降低至 3.84% 至 5.84%；根据干燥机的操作模式，最终水分活度范围为0.25至0.33。 Zompantle 的成分为蛋白质 (4.28%)、抗氧化活性 (18.8%)、碳水化合物 (4.83%)、脂肪 (0.92%)、纤维 (3.71%)、灰分 (0.94%) 和总可溶性固形物 (3°Brix)随着干燥过程中水的蒸发而增加。 Zompantle 组件的增量取决于操作模式；在直接模式和自然对流模式下，蛋白质、抗氧化活性、碳水化合物、脂肪、纤维、灰分和总可溶性固形物分别为 6.99%、61.69%、79.05%、1.20%、3.84%、8.70% 和 45 °Brix 。直接模式和自然对流（DM-NC）的总干燥效率为14.84%，网罩和自然对流（MS-NC）的总干燥效率为17.10%。色相角衡量颜色的属性；间接模式和自然对流使色调角接近初始值（29.2°）。 Zompantle花的初始色度值为55.07；间接模式和自然对流保持高饱和度（37.58）；这些干燥的条件确保了脱水的 Zompantle 呈红色。脱水的 Zompantle 花可以有多种实际应用，例如传统墨西哥美食中的添加剂。