Bioactive properties of Sanguisorba minor L. cultivated in central Greece under different fertilization regimes. (15th October 2020)

• Record Type: Journal Article
• Authors: Finimundy, Tiane C.; Karkanis, Anestis; Fernandes, Ângela; Petropoulos, Spyridon A.; Calhelha, Ricardo; Petrović, Jovana; Soković, Marina; Rosa, Eduardo; Barros, Lillian; Ferreira, Isabel C.F.R.
• Is Part Of: Food chemistry. Volume 327(2020)
• Publication Date: 2020-10-15
• Subjects: Antimicrobial activities -- Ellagitannins -- Fertilization -- Flavonoids -- Phenolic acids -- Sanguisorba minor L. -- Small burnet -- Tannins; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2020.127043
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Chemical characterization and bioactive properties of Sanguisorba minor were tested. Twenty-two phenolic compounds were identified. Roots at full fertilizer rate 660 Kg/ha presented the highest flavonoids content. Half fertilizer rate presented the highest content of total phenolic compounds. Fertilization could increase phenolic compounds content. Abstract: In this study, the chemical characterization and bioactive properties of S. minor cultivated under different fertilization rates (control, half rate and full rate) were evaluated. Twenty-two phenolic compounds were identified, including five phenolic acids, seven flavonoids and ten tannins. Hydrolysable tannins were prevalent, namely Sanguiin H-10, especially in leaves without fertilization (control). Roots of full-rate fertilizer (660 Kg/ha) presented the highest flavonoid content, mainly catechin and its isomers, whereas half-rate fertilizer (330 Kg/ha), presented the highest content of total phenolic compounds, due to the higher amount of ellagitannins (lambertianin C: 84 ± 1 mg/g of dry extract). Antimicrobial activities were also promising, especially against Salmonella typhimurium (MBC = 0.44 mg/mL). Moreover, root samples revealed activity against all tested cell lines regardless of fertilization rate, whereas leaves were effective only against HeLa cell line. In conclusion, S. minor could be a source of natural bioactive compounds, while fertilization could increase phenolic compounds content.