Soot-based coatings for solar cookers

Servín-Campuzano, Hermelinda; González-Avilés, Mauricio; Sobral, H.; Peña-Gomar, M.; López-Miranda, Armando

doi:10.1007/s10973-019-08134-7

Cited by 9 publications

(1 citation statement)

References 45 publications

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“…The oven has a wooden structure with a reflective surface, with sections of mirror-finished steel sheet placed on a plywood structure, and a 6 mm glass cover for the solar collection area. Inside the collector, there is an aluminum heat-receiving cylinder covered by a soot-based solar-absorption coating [25] with dimensions of: 10 gauge, height 50 cm and diameter 16 cm, with a sealed pressure lid at one end. The cylinder contains a stainless steel container with a capacity of up to 6 kg of corn.…”

Section: Solar Ovenmentioning

confidence: 99%

Preservation of Antioxidant Properties of Endemic Dark Corn Using Solar Energy for Nixtamalization

et al. 2021

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A comparative study of two corn nixtamalization processes is presented, one in the traditional way of the Michoacan region of Mexico, and the other using solar devices. The corn selected for the process was a nontransgenic endemic dark corn. For the nixtamalization process, a solar concentration oven was used; this process using the solar device is simple and affordable for communities. For characterization, the properties of the antioxidant content of dark corn were analyzed for both processes, and the highest concentration of antioxidants between the two varieties of corn was obtained. The antioxidant capacity in the two varieties of black corn was quantified and determined, and the anthocyanin pigments were extracted with methanol. The total anthocyanin content (CAT) was evaluated by the pH difference method, and the antioxidant capacity by the DPPH method. In the solar nixtamalization process, a higher content of CAT anthocyanins and antioxidant capacity were obtained. Therefore, the solar energy process was proposed as a sustainable energy option, and we concluded that black corn nixtamalized with a solar oven had high antioxidant levels and could be used as a nutritious food.

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Section: Solar Ovenmentioning

confidence: 99%