Effects of Hot Air Drying on the Nutritional and Phytochemical Composition of Radish (Raphanus sativus L.) Microgreens.

ABSTRACT: Cruciferous microgreens are recognized for their high content of phytochemicals, particularly glucosinolates. Their high moisture content and water activity make them highly perishable after harvest and highlight the need for effective preservation methods that maintain their nutritional quality. This study evaluated the impact of hot air drying at 45°C, 65°C, or 95°C compared to freeze-drying on the content and bioaccessibility of nutrients and phytochemicals in radish microgreens. Total phenolic content (TPC) and glucoraphenin (GE) exhibited opposite responses to heat: TPC decreased at 45°C (by 9%) and 65°C (21%), but did not change at 95°C, whereas GE decreased only at 95°C (by 21%). Vitamins B₁ and B₉ were stable across drying treatments, whereas vitamins B_2<

SUBMITTER: Jauregui MJ 

PROVIDER: S-EPMC12264400 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature