Diversity (Nov 2022)

Chemical Composition, Antioxidant and Antimicrobial Effects of Essential Oils Extracted from Two New <i>Ocimum basilicum</i> L. Varieties

  • Cătalina Stan (Tudora),
  • Florin Nenciu,
  • Adriana Muscalu,
  • Valentin Nicolae Vlăduț,
  • Floarea Burnichi,
  • Carmen Popescu,
  • Florentina Gatea,
  • Oana Alina Boiu-Sicuia,
  • Florentina Israel-Roming

DOI
https://doi.org/10.3390/d14121048
Journal volume & issue
Vol. 14, no. 12
p. 1048

Abstract

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Recent agricultural research aims to identify novel applications for plant extracts as efficient defenses against weeds, insects, or phytopathogenic agents. The main goal of the present study was to evaluate two new varieties of basil (Ocimum basilicum L., fam. Lamiaceae), Yellow basil, “Aromat de Buzau” variety and Red-violet basil, “Serafim” variety. The basil varieties were studied under different aspects regarding biochemical characterization using GC-MS, antioxidant activity evaluated under three methods (DPPH, ABTS, FRAP), and antimicrobial properties (for three G-bacteria: Perctobacterium carotovorum, Pseudomonas marginalis, Pseudomonas syringae and three phytopathogenic fungi: Rhizoctonia solani, Fusarium oxysporum, Botrytis cinerea). The results showed that linalool (39.28%; 55.51%), estragole (31.48%; 9.78%), and eugenol (5.42%; 7.63%) are the main compounds identified in the extracts, validating the high antioxidant activity of the studied essential oils and floral waters. When applied in high concentrations, essential oils have shown a potential bactericidal effect on P. carotovorum as well as a potential fungicidal effect on R. solani and B. cinerea.

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