Development of the retrieving technology of carotenoids from pumpkin (Cucurbita SPP.) pulp using Zn-Al layered double hydroxides

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.263169

Keywords:

Zn-Al layered double hydroxide, carotenoids-layered double hydroxide composite, carotenoid retrieving technology, pumpkin pulp, internal self-abrasion

Abstract

A simple mechanical method (grinding and sieving) was proposed to separate the composite into carotenoid-enriched and LDH-enriched materials. The method is based on the internal self-abrasion of the composite when grinding solid particles of LDH as grinding bodies. When removing carotenoids in the form of a composite, rapid precipitation of the sediment and ease of filtration under vacuum were found. X-ray diffraction analysis showed that the composite and products of its separation contain X-ray amorphous Zn-Al LDH, an oxide phase, and an amorphous phase of carotenoids. The method of dichloroethane extraction proved the effectiveness of the composite separation process. It was shown that for the optimal amount of Zn-Al LDH, the content of carotenoids in carotenoid-enriched material was 24.4 %, and in LDH-enriched – 4.4 %. For these conditions, it was found that the total yield of carotenoids was 184.3 mg/100 g of pumpkin pulp, of which 155.4 mg/100 g was in the carotenoid-enriched material and 28.9 mg/100 g was in the LDH-enriched material. A hypothesis was expressed regarding the chemical nature of the interaction of carotenoids and LDH in the composite due to π-d interaction.

The resulting carotenoid-containing materials can be used as food additives or processed to obtain purified carotenoids.

Author Biographies

Vadym Kovalenko, Ukrainian State University of Chemical Technology

PhD, Associate Professor

Department of Analytical Chemistry and Chemical Technology of Food Additives and Cosmetics

Valerii Kotok, Ukrainian State University of Chemical Technology

PhD, Associate Professor

Department of Processes, Apparatus and General Chemical Technology

Gregorio Guadalupe Carbajal Arizaga, University of Guadalajara

PhD, Associate Professor

Department of Chemistry

Volodymyr Verbitskiy, National Pedagogical Dragomanov University; National Ecological and Naturalistic Center for Student Youth

Doctor of Pedagogical Sciences, Professor, Director

Department of Medical, Biological and Valeological Basics of Life and Health Protection

Volodymyr Medianyk, Dnipro University of Technology

PhD, Associate Professor

Department of Mining Engineering and Education

Oksana Berzenina, Ukrainian State University of Chemical Technology

PhD, Associate Professor

Department of Inorganic Chemistry

Inna Anataichuk, Ukrainian State University of Chemical Technology

Senior Lecturer

Department of International Cooperation

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2022-08-31

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Kovalenko, V., Kotok, V., Dopira, A., Carbajal Arizaga, G. G., Verbitskiy, V., Medianyk, V., Berzenina, O., & Anataichuk, I. (2022). Development of the retrieving technology of carotenoids from pumpkin (Cucurbita SPP.) pulp using Zn-Al layered double hydroxides . Eastern-European Journal of Enterprise Technologies, 4(6(118), 6–15. https://doi.org/10.15587/1729-4061.2022.263169

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Vol. 4 No. 6(118) (2022): Technology organic and inorganic substances

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Technology organic and inorganic substances

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Copyright (c) 2022 Vadym Kovalenko, Valerii Kotok, Anton Dopira, Gregorio Guadalupe Carbajal Arizaga, Volodymyr Verbitskiy, Volodymyr Medianyk, Oksana Berzenina, Inna Anataichuk

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