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Proposal of a New Green Process for Waste Valorization and Cascade Utilization of Essential Oil Plants

Author

Listed:
  • Christoph Jensch

    (Institute for Separation and Process Technology, Clausthal University of Technology, Leibnizstr. 15, 38678 Clausthal-Zellerfeld, Germany)

  • Jochen Strube

    (Institute for Separation and Process Technology, Clausthal University of Technology, Leibnizstr. 15, 38678 Clausthal-Zellerfeld, Germany)

Abstract

In this study, different unit operations for distillation, extraction, capturing and separation of essential oil components from essential oil plants are evaluated, on the example of limonene and carvone from caraway fruits. Hydrodistillation is the standard process for obtaining essential oils and leaves the distillation water (hydrolate) after phase separation of the essential oil and the distilled plant material (pomace) as waste streams. In this study, a process for the valorization of these waste streams, using different techniques, such as traps and pressurized hot water extraction, is developed, reaching high yields, with a plus of 35%, compared to established methods, and reducing the overall global warming potential of the whole process, as well as reducing the cost of goods by around 30%.

Suggested Citation

  • Christoph Jensch & Jochen Strube, 2022. "Proposal of a New Green Process for Waste Valorization and Cascade Utilization of Essential Oil Plants," Sustainability, MDPI, vol. 14(6), pages 1-10, March.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:6:p:3227-:d:767612
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    Cited by:

    1. Ieva Mežaka & Arta Kronberga & Marta Berga & Laura Kaļāne & Laura Pastare & Gundars Skudriņš & Ilva Nakurte, 2023. "Biochemical and Physiological Responses of Cucumis sativus L. to Application of Potential Bioinsecticides—Aqueous Carum carvi L. Seed Distillation By-Product Based Extracts," Agriculture, MDPI, vol. 13(5), pages 1-17, May.

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