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Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2002

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Investigation of the tuber constituents of maca (Lepidium meyenii Walp.)

Anno di pubblicazione: 2002

Formato: Elettronico Cartaceo

Autori: Piacente S; Carbone V; Plaza A; Zampelli A; Pizza C.

Affiliazioni autori: Dipartimento di Scienze Farmaceutiche, Universita` degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano, Salerno, Italy; Centro di Spettrometria di Massa Proteomica e Biomolecolare, Istituto di Scienze dell’ Alimentazione, via Roma 52 A-C, 83100 Avellino, Italy

Autori CNR:

  • VIRGINIA CARBONE

Lingua: inglese

Abstract: Lepidium meyenii, known in South America as maca, has received attention worldwide as a powerful energizer that improves physical and mental conditions and increases fertility. Because of these reports, we investigated the secondary metabolites of the tuber of maca. The methanol extract of the tuber of maca contained, in addition to free sugars and amino acids, the following: uridine, malic acid and its benzoyl derivative, and the glucosinolates, glucotropaeolin and m- methoxyglucotropaeolin. Because glucosinolates and their derived products have received increasing attention due to their biological activities, the occurrence of glucosinolate degradation products in the hexane extract was also investigated, and benzylisothiocyanate and its m-methoxy derivative were isolated. The two glucosinolates were semiquantified by HPLC, and benzylisothiocyanate was semiquantified by GC/MS. The methanol extract of maca tuber also contained (1R,3S)-1-methyltetrahydro-beta- carboline-3-carboxylic acid, a molecule which is reported to exert many activities on the central nervous system.

Lingua abstract: inglese

Pagine da: 5621

Pagine a: 5625

Rivista:

Journal of agricultural and food chemistry American Chemical Society, Books and Journals Division]
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0021-8561

Numero volume: 50

DOI: 10.1021/jf020280x

Referee: Sì: Internazionale

Indicizzato da: ISI Web of Science (WOS) [000178122300019]

Parole chiave:

  • Lepidium meyenii
  • maca
  • Brassicaceae
  • glucosinolates
  • methyltetrahydro-beta-carboline-3-carboxylic acid

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