Work

Total Phenolic Content in Potato (Solanum tuberosum L.) Peel and Flesh Across Seed Generations

Year: 2026

Type: article

Abstract: This study compared total phenolic content (TPC) in potato tubers of four Lithuanian cultivars (VB Venta, Goda, VB Meda, and VB Aista) across three seed propagation stages. Folin–Ciocalteu-reactive compounds were analyzed in peel, flesh, and whole-tuber samples from three seed propagation stages: minitubers (m1), standard tubers (m2), and first-class certified seed potatoes (E1), using the Folin–Ciocalteu method. TPC was consistently highest in the peel, reaching 107.1 ± 5.3 µg gallic acid equivalents (GAE) g−1 dry weight (DW) in VB Venta (m2), whereas the highest flesh TPC (86.7 ± 4.3 µg GAE g−1 DW) was observed in VB Meda (E1). Across cultivars, peel TPC increased from 72.9 µg GAE g−1 DW in m1 to 85.6 µg GAE g−1 DW in E1. Whole-tuber TPC varied less among seed propagation stages (56.2–58.8 µg GAE g−1 DW). Because the seed propagation stages were produced under different cultivation conditions, the observed differences cannot be attributed solely to seed generation. The results confirm the higher concentration of Folin–Ciocalteu-reactive compounds in potato peel and indicate its potential for further investigation as a source of bioactive compounds.

Source: Molecules

DOI: 10.3390/molecules31173014

Authors: Rita Asakaviciute, Nijole Ruziene, Jolanta Jurkeviciute, Ingrida Radveikiene, Erika Kubiliene

Institution: Vilnius University of Applied Sciences

Language: English

Topic: Potato Plant Research

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,258