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Peruvian Maca (Lepidium peruvianum): (I) Phytochemical and Genetic Differences in Three Maca Phenotypes.

Henry O Meissner1, Alina Mscisz2, Mieczyslaw Mrozikiewicz2

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Summary

Peruvian Maca

Keywords:
GlucosinolatesHPLC profilesHypocotyl coloursPeruvian MacaPhenotypes

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Area of Science:

  • Phytochemistry and Molecular Biology
  • Botanical Authenticity
  • Nutraceutical Research

Background:

  • Glucosinolates in Peruvian Maca (Lepidium peruvianum Chacon) are linked to therapeutic functions.
  • Different Maca phenotypes (Black, Red, Yellow) exhibit varying constituent levels.
  • Traditional preparation methods may preserve bioactive compounds.

Purpose of the Study:

  • To analyze glucosinolate levels and DNA variability in distinct Maca phenotypes.
  • To compare chemical profiles and genotypic variations across Black, Red, and Yellow Maca.
  • To assess the effectiveness of traditional Maca preparation for glucosinolate extraction.

Main Methods:

  • Cultivation of Maca phenotypes in the Peruvian Andes.
  • Glucosinolate quantification using HPLC against standards.
  • DNA profiling via ISSR-PCR and RAPD techniques.

Main Results:

  • Yellow Maca had significantly lower glucosinolate levels compared to Black and Red phenotypes.
  • Red Maca exhibited the highest glucosinolate concentrations.
  • Distinct RAPD and ISSR-PCR profiles were observed for the Yellow phenotype.

Conclusions:

  • Glucosinolate content varies considerably among Peruvian Maca phenotypes.
  • HPLC and DNA fingerprinting can aid in identifying Maca phenotypes and ensuring product authenticity.
  • Traditional preparation methods appear effective for extracting key bioactive glucosinolates.