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Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents

Received: 24 January 2022     Accepted: 26 February 2022     Published: 4 March 2022
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Abstract

In Senegal, artisanal vegetable oils trade is developing and Balanites aegyptiaca (desert date) as well as Sesamum indicum (sesame) are popular vegetal species. Present study focused on oils obtained from these two plants seeds. These oils have various applications such as for dietary and cosmetic purposes. Sampling carried out in Dakar region allowed collection of five oil samples for each specie, mainly in different districts shops or craft fairs. Their peroxide, acid, iodine and saponification values as well as volatile matter, tocopherols and vitamin A contents have been determined through reference methods described by International Organization for Standardization (ISO) or French Standardization Association (AFNOR). Obtained experimental data were compared with Codex Alimentarius standard and/or literature, since some parameters are not subject to specific regulation. Balanites aegyptiaca and Sesamum indicum oil samples showed an orange-yellow or pale yellow coloration. Only one desert date oil sample had an adequate peroxide value while two from sesame were not compliant. Iodine values for B. aegyptiaca samples were closed to a result previously described by peer researchers for an oil produced from seeds harvested in Senegal but out of Codex specification range for sesame oils. All ten samples had a suitable acidity, widely below maximum value of 4.0 mg KOH/g. Two sesame oil samples had correct saponification value. Among ten oil samples collected, eight showed a volatile matter content exceeding standard. Vitamin A had not been detected in any sample. Desert date oils tocopherols content were comprised between 975.38 and 1141.36 mg/kg and S. indicum samples met the standard indicating a tocopherols level in the range [330 - 1010 mg/kg]. Present study results are not all conclusive and reinforce reservations about commercially available artisanal oils quality. However, literature review allows to state that oils physico-chemical properties and nutrient content vary greatly.

Published in Science Journal of Analytical Chemistry (Volume 10, Issue 1)
DOI 10.11648/j.sjac.20221001.11
Page(s) 1-7
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Balanites aegyptiaca, Sesamum indicum, Oil, Quality, Physico-chemical Parameters, Vitamins

References
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    Rokhaya Gueye, Aminata Diaw, Astou Ndiaye, Elhadji Ousmane Faye, Amadou Diop, et al. (2022). Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents. Science Journal of Analytical Chemistry, 10(1), 1-7. https://doi.org/10.11648/j.sjac.20221001.11

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    ACS Style

    Rokhaya Gueye; Aminata Diaw; Astou Ndiaye; Elhadji Ousmane Faye; Amadou Diop, et al. Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents. Sci. J. Anal. Chem. 2022, 10(1), 1-7. doi: 10.11648/j.sjac.20221001.11

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    AMA Style

    Rokhaya Gueye, Aminata Diaw, Astou Ndiaye, Elhadji Ousmane Faye, Amadou Diop, et al. Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents. Sci J Anal Chem. 2022;10(1):1-7. doi: 10.11648/j.sjac.20221001.11

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  • @article{10.11648/j.sjac.20221001.11,
      author = {Rokhaya Gueye and Aminata Diaw and Astou Ndiaye and Elhadji Ousmane Faye and Amadou Diop and Khadidiatou Thiam and Serigne Omar Sarr and Bara Ndiaye and Yérim Mbagnick Diop},
      title = {Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents},
      journal = {Science Journal of Analytical Chemistry},
      volume = {10},
      number = {1},
      pages = {1-7},
      doi = {10.11648/j.sjac.20221001.11},
      url = {https://doi.org/10.11648/j.sjac.20221001.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjac.20221001.11},
      abstract = {In Senegal, artisanal vegetable oils trade is developing and Balanites aegyptiaca (desert date) as well as Sesamum indicum (sesame) are popular vegetal species. Present study focused on oils obtained from these two plants seeds. These oils have various applications such as for dietary and cosmetic purposes. Sampling carried out in Dakar region allowed collection of five oil samples for each specie, mainly in different districts shops or craft fairs. Their peroxide, acid, iodine and saponification values as well as volatile matter, tocopherols and vitamin A contents have been determined through reference methods described by International Organization for Standardization (ISO) or French Standardization Association (AFNOR). Obtained experimental data were compared with Codex Alimentarius standard and/or literature, since some parameters are not subject to specific regulation. Balanites aegyptiaca and Sesamum indicum oil samples showed an orange-yellow or pale yellow coloration. Only one desert date oil sample had an adequate peroxide value while two from sesame were not compliant. Iodine values for B. aegyptiaca samples were closed to a result previously described by peer researchers for an oil produced from seeds harvested in Senegal but out of Codex specification range for sesame oils. All ten samples had a suitable acidity, widely below maximum value of 4.0 mg KOH/g. Two sesame oil samples had correct saponification value. Among ten oil samples collected, eight showed a volatile matter content exceeding standard. Vitamin A had not been detected in any sample. Desert date oils tocopherols content were comprised between 975.38 and 1141.36 mg/kg and S. indicum samples met the standard indicating a tocopherols level in the range [330 - 1010 mg/kg]. Present study results are not all conclusive and reinforce reservations about commercially available artisanal oils quality. However, literature review allows to state that oils physico-chemical properties and nutrient content vary greatly.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents
    AU  - Rokhaya Gueye
    AU  - Aminata Diaw
    AU  - Astou Ndiaye
    AU  - Elhadji Ousmane Faye
    AU  - Amadou Diop
    AU  - Khadidiatou Thiam
    AU  - Serigne Omar Sarr
    AU  - Bara Ndiaye
    AU  - Yérim Mbagnick Diop
    Y1  - 2022/03/04
    PY  - 2022
    N1  - https://doi.org/10.11648/j.sjac.20221001.11
    DO  - 10.11648/j.sjac.20221001.11
    T2  - Science Journal of Analytical Chemistry
    JF  - Science Journal of Analytical Chemistry
    JO  - Science Journal of Analytical Chemistry
    SP  - 1
    EP  - 7
    PB  - Science Publishing Group
    SN  - 2376-8053
    UR  - https://doi.org/10.11648/j.sjac.20221001.11
    AB  - In Senegal, artisanal vegetable oils trade is developing and Balanites aegyptiaca (desert date) as well as Sesamum indicum (sesame) are popular vegetal species. Present study focused on oils obtained from these two plants seeds. These oils have various applications such as for dietary and cosmetic purposes. Sampling carried out in Dakar region allowed collection of five oil samples for each specie, mainly in different districts shops or craft fairs. Their peroxide, acid, iodine and saponification values as well as volatile matter, tocopherols and vitamin A contents have been determined through reference methods described by International Organization for Standardization (ISO) or French Standardization Association (AFNOR). Obtained experimental data were compared with Codex Alimentarius standard and/or literature, since some parameters are not subject to specific regulation. Balanites aegyptiaca and Sesamum indicum oil samples showed an orange-yellow or pale yellow coloration. Only one desert date oil sample had an adequate peroxide value while two from sesame were not compliant. Iodine values for B. aegyptiaca samples were closed to a result previously described by peer researchers for an oil produced from seeds harvested in Senegal but out of Codex specification range for sesame oils. All ten samples had a suitable acidity, widely below maximum value of 4.0 mg KOH/g. Two sesame oil samples had correct saponification value. Among ten oil samples collected, eight showed a volatile matter content exceeding standard. Vitamin A had not been detected in any sample. Desert date oils tocopherols content were comprised between 975.38 and 1141.36 mg/kg and S. indicum samples met the standard indicating a tocopherols level in the range [330 - 1010 mg/kg]. Present study results are not all conclusive and reinforce reservations about commercially available artisanal oils quality. However, literature review allows to state that oils physico-chemical properties and nutrient content vary greatly.
    VL  - 10
    IS  - 1
    ER  - 

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Author Information
  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • National Analysis and Control Laboratory, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

  • Laboratory of Analytical Chemistry and Food Sciences, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta DIOP University, Dakar, Senegal

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