Antimicrobial Activity Screening of Camellia japonica Flowers (var. Carolyn Tuttle) for Potential Drug Development

Antia G. Pereira; Aurora Silva; Clara Grosso; Javier Echave; Franklin Chamorro; Sepidar Mansour; Pauline Donn; María Fraga-Corral; Fatima Barroso; Miguel A. Prieto

doi:10.3390/ASEC2023-15909

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Antimicrobial Activity Screening of Camellia japonica Flowers (var. Carolyn Tuttle) for Potential Drug Development

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Sepidar Seyyedi Mansour

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¹ Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
² REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr António Bernardino de Almeida 431, 4200-072 Porto, Portugal;
³ Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain
⁴ REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr António Bernardino de Almeida 431, 4200-072 Porto, Portugal.
⁵ Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain;
⁶ Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E32004 Ourense, Spain.
⁷ REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr António Bernardino de Almeida 431, 4200-072 Porto, Portugal

Academic Editor: Alessandra Durazzo

Published: 07 November 2023 by MDPI in The 4th International Electronic Conference on Applied Sciences session Food Science and Technology

https://doi.org/10.3390/ASEC2023-15909

Abstract:

The escalating global problem of antibiotic resistance among pathogenic microorganisms necessitates the exploration of effective alternatives to combat multi-resistance [1]. Consumer demand for organic products has stimulated research on natural-origin matrices, such as plants, to develop antimicrobial additives [2]. Camellia japonica flowers have demonstrated remarkable biological properties, making them a potential source of bioactive molecules for use as bio-preservatives [3]. This study evaluated the antimicrobial activity of C. japonica flowers (var. Carolyn Tuttle) against food-related microorganisms using an agar diffusion assay. Extracts were obtained via a conventional and cost-effective maceration method (50 °C, 1 h) using 60% methanol as the solvent. Results revealed significant antimicrobial activity of C. japonica flowers (var. Carolyn Tuttle) against Staphylococcus aureus (10.29 mm), Pseudomonas aeruginosa (9.24 mm), and Salmonella enteritidis (6.95 mm). However, it did not exhibit activity against Escherichia coli, Staphylococcus epidermidis, and Bacillus cereus, unlike other varieties of C. japonica that displayed activity against these microorganisms [4]. In conclusion, C. japonica flowers (var. Carolyn Tuttle) demonstrated potential as antimicrobial agents with promising applications in the food and pharmaceutical industries. This research contributes to developing natural and organic additives to combat antimicrobial resistance and meet consumer demands for safer and more sustainable products.