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Potentials of Medicinal Plant Extracts as an Alternative to Synthetic Chemicals in Postharvest Protection and Preservation of Horticultural Crops: A Review

Author

Listed:
  • Kwanele Andy Nxumalo

    (Postharvest Research Laboratory, Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa)

  • Adeyemi Oladapo Aremu

    (Indigenous Knowledge Systems (IKS) Centre, Faculty of Natural and Agricultural Sciences, North West University, Private Bag X2046, Mmabatho 2790, South Africa)

  • Olaniyi Amos Fawole

    (Postharvest Research Laboratory, Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa)

Abstract

Horticultural crops undergo various physiological and biochemical changes that lead to undesirable physiological disorders, decay and subsequent economic losses during storage. Quality degradation of horticultural crops is mainly caused by postharvest pathogens such as Botrytis cinerea and Penicillium spp., etc. The application of synthetic fungicides remains the most effective method to control postharvest pathogens. However, their use is becoming increasingly restricted internationally due to health concerns and consumers’ requests for safe and natural alternatives. This has led researchers to investigate natural flora as one of the alternatives to be used in crop protection and preservation. Various medicinal plant parts have different phytochemicals and antioxidants that can be used in crop protection and preservation. Extracts from plants such as Ruta chalepensis , Eucalyptus globulus , etc., have proven to be effective in controlling postharvest pathogens of horticultural crops and increased their shelf life when used as a substitute for synthetic chemicals. Furthermore, extracts from neem and other medicinal plants contain a predominant and insecticidal active ingredient. The application of medicinal plant extracts could be a useful alternative to synthetic chemicals in the postharvest protection and preservation of horticultural crops. This review paper details the application of medicinal plant extracts for postharvest protection and preservation of horticultural crops.

Suggested Citation

  • Kwanele Andy Nxumalo & Adeyemi Oladapo Aremu & Olaniyi Amos Fawole, 2021. "Potentials of Medicinal Plant Extracts as an Alternative to Synthetic Chemicals in Postharvest Protection and Preservation of Horticultural Crops: A Review," Sustainability, MDPI, vol. 13(11), pages 1-33, May.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:11:p:5897-:d:560967
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    References listed on IDEAS

    as
    1. Burtram C. Fielding & Cindy-Lee Knowles & Filicity A. Vries & Jeremy A. Klaasen, 2015. "Testing of Eight Medicinal Plant Extracts in Combination with Kresoxim-Methyl for Integrated Control of Botrytis cinerea in Apples," Agriculture, MDPI, vol. 5(3), pages 1-12, July.
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    Cited by:

    1. Analleli Jiménez-Durán & Josefina Barrera-Cortés & Laura Patricia Lina-García & Rosa Santillan & Ramón Marcos Soto-Hernández & Ana C. Ramos-Valdivia & Teresa Ponce-Noyola & Elvira Ríos-Leal, 2021. "Biological Activity of Phytochemicals from Agricultural Wastes and Weeds on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)," Sustainability, MDPI, vol. 13(24), pages 1-20, December.

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