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Evaluation the bioactivity and applicability of flavedo extract in preserving Citrus maxima (Burm.) Merr. pomelo

Author

Listed:
  • Nguyen Hong Khoi Nguyen

    (Institute of Food and Biotechnology, Can Tho University, Can Tho City, Vietnam
    Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam)

  • Giang Long Bach

    (Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam)

  • Truc Thanh Tran

    (Institute of Food and Biotechnology, Can Tho University, Can Tho City, Vietnam
    School of Graduate, Can Tho University, Can Tho City, Vietnam)

Abstract

Pomelo peels, often overlooked in food processing, generate significant byproducts, especially in minimal processing setups. Rich in bioactive compounds, particularly in the green peel or flavedo, these peels offer versatile applications. This study focuses on two main aspects. Firstly, the characterisation of the Citrus maxima (Burm.) Merr. pomelo flavedo extract was carried out, with its phenolic composition and activities such as antioxidant, and antifungal properties assessed. Secondly, the impact of applying a pectin film enriched with this extract on pomelo storage at 8 °C was evaluated. The extract has a diverse phenolic composition, including catechin, chlorogenic acid, rutin, ellagic acid, quercitrin, quercetin, apigenin, and gallic acid, with gallic acid being the most concentrated at 54 mg.g-1. While the extract showed free radical-scavenging activity, it was less effective than vitamin C; the extract also demonstrated antifungal effects on 7 mold and 1 yeast strains. The extract-infused pectin coating significantly reduced colour changes, respiration intensity, and weight loss in Citrus maxima (Burm.) Merr. pomelo. Additionally, it preserved ascorbic acid, total soluble solids, and titratable acidity content. Sensory evaluations favoured pomelo preserved with the supplemented coating over both pre-preserved and untreated samples.

Suggested Citation

  • Nguyen Hong Khoi Nguyen & Giang Long Bach & Truc Thanh Tran, 2024. "Evaluation the bioactivity and applicability of flavedo extract in preserving Citrus maxima (Burm.) Merr. pomelo," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 42(4), pages 273-283.
    • Handle: RePEc:caa:jnlcjf:v:42:y:2024:i:4:id:22-2024-cjfs
    DOI: 10.17221/22/2024-CJFS
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