INVESTIGATION ON CHLOROGENIC ACID STABILITY IN AQUEOUS SOLUTION AFTER MICROWAVE TREATMENT

Authors   Ianni F, Barola C, Blasi F, Moretti S, Galarini R, Cossignani L

Abstract   Recently, several health benefits associated with the consumption of foods rich in chlorogenic acid (5-CQA) have been reported. However, an important issue is its low stability during extraction and food processing, resulting in isomerization to neochlorogenic and cryptochlorogenic acids and the formation of further degradation products. This work describes the evaluation of 5-CQA reactivity in commercial waters after microwave treatment. An optimized HPLC-UV method was used to monitor 5-CQA conversion to its main isomers, while LC-HRMS/MS was performed for the elucidation of transformation products. Results revealed different degrees of isomerization in 5-CQA depending on the water sample, and the formation of oxidation derivatives of CQA isomers. This study highlights the importance of analytical monitoring of food compounds, during microwave treatment for example. In the case of 5-CQA, understanding of the degradation process would allow better preservation of bioactive constituent in foods and beverages and health promoting effects.

Publish Date  2022

Volume   374

ISSN   1873-7072

DOI   doi.org/10.1016/j.foodchem.2021.131820

URL   https://www.sciencedirect.com/science/article/pii/S0308814621028260?via%3Dihub

Journal  Food Chemistry

Pages   Article no. 131820

PMID   35021582