Component analysis of nutritionally rich chloroplasts: recovery from conventional and unconventional green plant species

Abstract

A study of the literature indicates that chloroplasts synthesise a range of molecules, many of which have nutritional value for humans, but the nutritional credentials of chloroplasts recovered from plant cells are not established. Chloroplast-rich-fractions (CRFs) were prepared from green plant species and the macro- and micro-nutrient composition compared with the whole leaf materials (WLMs). The results indicated that, on a dry weight basis, CRF material from a range of green biomass was enriched in lipids and proteins, and in a range of micronutrients compared with the WLM. Vitamins E, pro-vitamin A, and lutein were all greater in CRF preparations. Of the minerals, iron was most notably concentrated in CRF. Spinach CRFs possessed the highest α-tocopherol [62 mg 100 g−1, dry weight (DW)], β-carotene (336 mg 100 g−1 DW) and lutein (341 mg 100 g−1 DW) contents, whilst grass CRFs had the highest concentration of alpha-linolenic acid (ALA) (69.5 mg g−1). The higher concentrations of α-tocopherol, β-carotene, lutein, ALA and trace minerals (Fe and Mn) in CRFs suggested their potential use as concentrated ingredients in food formulations deficient in these nutrients.

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Acknowledgements

This project was partly supported by Islamic Development Bank (IDB), Jeddah 21432, KSA.

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Correspondence to David A. Gray.

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Gedi, M.A., Briars, R., Yuseli, F. et al. Component analysis of nutritionally rich chloroplasts: recovery from conventional and unconventional green plant species. J Food Sci Technol 54, 2746–2757 (2017). https://doi.org/10.1007/s13197-017-2711-8

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Keywords

  • Chloroplasts
  • Beta-carotene
  • Lutein
  • Alpha-tocopherol
  • Alpha-linolenic acid
  • Iron