Work

Dynamics in the polyphenolic profile of sprouted mung bean (Vigna radiata L.): Impact of short-term germination and dehulling

Year: 2026

Type: article

Abstract: Phenolic compounds in mung bean ( Vigna radiata L. Wilczek) are important bioactive constituents whose levels and composition change during germination. However, their distribution between seed fractions (cotyledon and hull) and their compositional changes in dehulled cotyledons during early germination remain insufficiently understood. This study investigated how dehulling affects phenolic compound distribution and examined how short-term germination (4–48 h) influences the phenolic content and composition of dehulled mung bean sprouts using UHPLC-DAD-MS n . Among the 12 detected phenolic compounds, 11 were tentatively identified. Total phenolic content was highest in the hull (10,055.3 μg/g dw) and lowest in the ungerminated cotyledon (304.3 μg/g dw). Vitexin and isovitexin were the predominant flavonoids in both fractions, with the hull contributing 66.0% and 75.5% of total vitexin and isovitexin, respectively. During germination, several apigenin glycosides, particularly isovitexin- O -rhamnoside, and acylated apigenin derivatives, accumulated. These findings highlight time-dependent changes in flavonoid composition during early mung bean germination.

Source: Food Chemistry X

DOI: 10.1016/j.fochx.2026.103820

Authors: Christina Wintersohle, Lena Löwe, Ismail-Hakki Acir, Lara Etzbach, Andreas Schieber, Ute Schweiggert-Weisz

Institutions: University of Bonn, Technical University of Munich, Fraunhofer Institute for Process Engineering and Packaging

Language: English

Topic: Phytochemicals and Antioxidant Activities

Subfield: Biochemistry

Field: Medicine

Domain: Health Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,330