Correlation between Antimicrobial Activity Values and Total Phenolic Content/Antioxidant Activity in Rubus idaeus L.

Abstract

Plant by-products, which are discarded into the environment, are rich in valuable compounds. The aim of this research was to determine the antibacterial activity of Rubus idaeus L. morphological parts and its correlation with total phenolic content and antioxidant activity. The authors also aimed to evaluate the plant’s potential as added-value products. New aspects were revealed for further use and for making novel and natural products. The study’s results indicated that raspberry leaves, inflorescences, and fruits could effectively combat three Gram-positive bacteria. According to the findings, among the various plant parts, root and seed extracts had the lowest antibacterial activity. Data revealed moderate, weak, or very weak correlation between the antimicrobial activity and phenolic content parameters. These findings underscore the viability of substituting synthetic antimicrobials with natural alternatives. The present study is significant for preparing novel products as antibacterials by appropriate and optimized processing using all raspberry morphological parts, and the research results show promising prospects for future purposeful utilisation of nature-based products. Raspberry plant parts can find applications in emerging fields that generate economic and environmental value.

Scrutinizing the Antimicrobial and Antioxidant Potency of European Cranberry Bush (Viburnum opulus L.) Extracts

“…Since the studied V. opulus extracts were intended as a homeopathic remedy for the preventive treatment of colds in children and adults, water was used as the only solvent to prepare the extracts industrially. The high TPC content in the V. opulus extracts derived from berries and bark is expected to contribute to the inhibition of opportunistic microorganisms, as reported by Mahboubi et al [65] and Ispiryan et al [66] for Punica granatum L. and Rubus idaeus L. extracts, respectively.…”