Mixed-Mode Solar Drying and its Effect on Physicochemical and Colorimetric Properties of Zompantle (Erythrina Americana).

IF 3.1 2区 农林科学 Q2 CHEMISTRY, APPLIED Plant Foods for Human Nutrition Pub Date : 2024-03-01 Epub Date: 2024-02-08 DOI:10.1007/s11130-024-01147-0
Octavio García-Valladares, Alfredo Domínguez-Niño, Ana María Lucho-Gómez, Andrea Gail Jiménez-Montiel, Arcel Siareth Rodríguez-Mendoza, Beatriz Castillo-Téllez, Mario Luna-Flores, Margarita Castillo-Téllez
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Abstract

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.

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混合模式太阳能干燥及其对美国桔梗理化和色度特性的影响
研究人员开发了一种混合模式太阳能干燥方法,用于评估美国桔梗(Zompantle)的理化和色度特性。采用了 22 个因子设计;操作模式(网状遮阳和直接)和气流(自然对流和强制对流)被确定为设计中的因子。Zompantle 花的初始含水量从 89.03%(湿重)降至 3.84% 至 5.84% 不等;根据烘干机的运行模式,最终的水分活度在 0.25 至 0.33 之间。随着干燥过程中水分的蒸发,Zompantle 的蛋白质(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%)和总可溶性固体(3°Brix)等成分都有所增加。Zompantle成分的增加取决于操作模式;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%。色调角衡量颜色的特性;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了较高的饱和度(37.58);这些干燥条件确保了脱水 Zompantle 的红色。脱水 Zompantle 的花可以有多种实际用途,例如作为传统墨西哥菜肴的添加剂。
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来源期刊
Plant Foods for Human Nutrition
Plant Foods for Human Nutrition 工程技术-食品科技
CiteScore
6.80
自引率
7.50%
发文量
89
审稿时长
12-24 weeks
期刊介绍: Plant Foods for Human Nutrition (previously Qualitas Plantarum) is an international journal that publishes reports of original research and critical reviews concerned with the improvement and evaluation of the nutritional quality of plant foods for humans, as they are influenced by: - Biotechnology (all fields, including molecular biology and genetic engineering) - Food science and technology - Functional, nutraceutical or pharma foods - Other nutrients and non-nutrients inherent in plant foods
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