Bioactive and Antimicrobial Properties of Oven-Dried Beetroot (Pulp and Peel) Using Different Solvents

• Main Authors: Ahmad Mohammad Salamatullah, Khizar Hayat, Mohammed Saeed Alkaltham, Mohammed Asif Ahmed, Shaista Arzoo, Fohad Mabood Husain, Alhanouf Mohammed Al-Dossari, Ghalia Shamlan, Laila Naif Al-Harbi
• Format: Article
• Language: English
• Published: MDPI AG 2021-03-01
• Series: Processes
• Subjects: beetroot; flavonoid; oven drying; antioxidant activity
• Online Access: https://www.mdpi.com/2227-9717/9/4/588

<b> </b>Beetroot is a widely consumed crop all over the world and contains plenty of bioactive compounds. In this study, we analyzed the bioactive as well as the antimicrobial properties of the oven-dried beetroot (pulp and peel) using different solvents. The 50% methanolic extract yielded the highest content of total polyphenols and total flavonoids as well as the reducing power of the beetroot. The beetroot peel exhibited a higher content of total polyphenols, total flavonoids, and reducing power activity under all the extraction solvents. Mixture of methanol and water (50% <i>v</i>/<i>v</i>) extracted the highest chlorogenic acid (78.24 mg/100 g) of the dried beetroot peel, while 1,2-dihydroxybenzene was the most noteworthy phenolic compound (42.52 mg/100 g) in beetroot peel methanolic extract. The 50% methanolic extract of both peel and pulp demonstrated the highest antibacterial and anticandidal potential. These results can be helpful for beetroot consumption.