Publications by authors named "Flor Yazmin Ramirez Castillo"

Article Synopsis
  • - The study investigates how different extraction methods (Soxhlet, maceration, ultrasound-assisted) influence the phytochemical profile and antioxidant activity of guava leaf extracts, which are rich in polyphenolic compounds.
  • - The extraction yield of phenolic compounds ranged from 16 to 45 mg/g, with the Soxhlet method producing the strongest antioxidant effects based on various assays (ABTS, FRAP, Folin-Ciocalteu).
  • - Key bioactive compounds such as quercetin, kaempferol, and avicularin were identified, highlighting that both the method of extraction and purification significantly enhance the antioxidant capacity of guava leaf extracts.
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Uropathogenic (UPEC) strains are among the leading causes of urinary tract infections (UTIs) worldwide. They can colonize the urinary tract and form biofilms that allow bacteria to survive and persist, causing relapses of infections and life-threatening sequelae. Here, we analyzed biofilm production, antimicrobial susceptibility, virulence factors, and phylogenetic groups in 74 isolated from diagnosed patients with UTIs to describe their microbiological features and ascertain their relationship with biofilm capabilities.

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Waterborne pathogens and related diseases are a major public health concern worldwide, not only by the morbidity and mortality that they cause, but by the high cost that represents their prevention and treatment. These diseases are directly related to environmental deterioration and pollution. Despite the continued efforts to maintain water safety, waterborne outbreaks are still reported globally.

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