[Occurrence of chlorogenic acids in potatoes]

Area of Science:

• Agricultural Chemistry
• Analytical Chemistry

Context:

• Potato (Solanum tuberosum) is a globally significant crop.
• Understanding the phytochemical composition of potato varieties is crucial for food science and agriculture.

Purpose:

• To quantify and identify chlorogenic acids in ten potato varieties.
• To determine the distribution of chlorogenic acids within potato tubers.

Summary:

• High-performance liquid chromatography (HPLC) was used to analyze ten potato varieties for chlorogenic acids.
• 3-O-caffeoylquinic acid was the predominant compound, with concentrations ranging from 22-71 ppm.
• Chlorogenic acids are concentrated in the outer layers of the potato, with approximately 50% found in the peel and adjacent tissue.

Impact:

• Provides valuable data on the chlorogenic acid content of different potato varieties.
• Highlights the importance of potato peel in the dietary intake of these compounds.
• Informs breeding programs and food processing for optimizing phytochemical content.