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Antimicrobial activity and phytochemical characterization of Carya illinoensis

2017; Elsevier BV; Volume: 104; Linguagem: Inglês

10.1016/j.micpath.2017.01.037

1096-1208

Nathieli B. Bottari, Leonardo Quintana Soares Lopes, Kauana Pizzuti, Camilla Filippi dos Santos Alves, Marcos Saldanha Corrêa, Leandro P. Bolzan, Adriana Maria Zago, Rodrigo de Almeida Vaucher, Aline Augusti Boligon, Janice Luehring Giongo, Matheus D. Baldissera, Roberto Christ Vianna Santos,

Essential Oils and Antimicrobial Activity

Carya illinoensis is a widespread species, belonging to the Juglandaceae family, commonly known as Pecan. Popularly, the leaves have been used in the treatment of smoking as a hypoglycemic, cleansing, astringent, keratolytic, antioxidant, and antimicrobial agent. The following research aimed to identify for the first time the phytochemical compounds present in the leaves of C. illinoensis and carry out the determination of antimicrobial activity of aqueous and ethanolic extracts. The antimicrobial activity was tested against 20 microorganisms by determining the minimum inhibitory concentration (MIC). Phenolic acids (gallic acid and ellagic acid), flavonoids (rutin), and tannins (catechins and epicatechins) were identified by HPLC-DAD and may be partially responsible for the antimicrobial activity against Gram-positive, Gram-negative, and yeast. The results showed MIC values between 25 mg/mL and 0.78 mg/mL. The extracts were also able to inhibit the production of germ tubes by Candida albicans.