Total Phenolic, Flavonoid Content, and Antioxidant Activity of Dried Marigold (Tagetes erecta L.) Petals Produced in a Mixed-Mode Solar Dryer.

ABSTRACT: Marigold (Tagetes erecta L.), commonly known as Cempasúchil, is a significant symbol of Mexico's Day of the Dead celebrations. However, once the festivities conclude, the flowers and petals are frequently discarded as waste, contributing to environmental pollution. Cempasúchil was dehydrated using an active mixed-type solar dryer to address this issue. This method establishes an environmentally friendly, easy-to-use, cost-effective, and practical preservation technique for rural communities. The maximum drying temperature was 69.65 °C, and the maximum solar irradiance was 1080.60 W/m². The initial moisture content began at 87.35% and finished at 4.93%. The initial colorimetric parameters were: lightness 65.44, a 32.43, b 78.38, Chroma 84.83, and Hue angle 67.53°. The antioxidant

SUBMITTER: Dominguez-Nino A 

PROVIDER: S-EPMC12085363 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature