The authors would like to thank the Federal University of Parana
(UFPR), Federal University of Technology - Parana (UTFPR), Coordination
of Superior Level Staff Improvement (CAPES, Contract
88881.624585/2021-01), and the National Council for Scientific and
Technological Development (CNPq, Grant number 304722/2019-7) for
financial support. In addition, the authors are grateful to the Foundation
for Science and Technology (FCT, Portugal) for the contracts of J. Pinela
(CEECIND/01011/2018), through the individual scientific employment
program-contract, and L. Barros, through the institutional scientific
employment program-contract.
not widely explored. The gastrointestinal environment can modify these compounds, resulting in new combinations
with different bioactivity. This study aimed to evaluate the effects of simulated gastrointestinal digestion
(SGD) on rose and nasturtium flower extracts. Using UPLC-HRMS, 38 phenolic compounds were identified, and
the SGD caused significant changes, mainly in the glycosylated phenolic. Furthermore, antioxidant activity was
correlated with the increase in the concentrations of some polyphenols. Tested Gram-negative bacteria showed
sensitivity to the flower extracts; their growth was inhibited by up to 82.7%. SGD interrupted the bacterial
growth inhibition power of the rose extracts. On the other hand, an increase in inhibition ranging from 52.25 to
54.72% was found for nasturtium extracts, correlated to the behavior of some bioactive. Hence, SGD resulted in
significant changes in phenolic profiles of the edible flowers, increasing antioxidant activity and changing
antimicrobial effects.
