Qualità alimentare e nutraceutica di 2 nuove varietà di cipolla brevidiurna
Keywords:
Sostanze volatili, solfuri, vitamina C, antociani, analisi GC/MS ed HPLC, Volatile substances, sulfur compounds, vitamin C, anthocyanins, GC/MS and HPLC analysisAbstract
Riassunto
In questo lavoro si è inteso valutare la qualità alimentare (sostanze volatili, zuccheri solubili, acidi organici) e nutraceutica (vitamina C, antociani totali, sostanze solforate) di 2 nuove linee selettive di cipolla brevidiurne ottenute dal CRA-ORA attraverso un programma di miglioramento genetico applicato ad una popolazione locale delle Marche reperita nel territorio di Suasa (AN). Le linee selettive denominate “Suasa rosea” e “Suasa rosso cupo” sono state comparate con altre cultivar longidiurne quali “Dorata”, “Borettana” e “Argentina rosso cupo”. Le sostanze volatili e solforate sono state determinate con un metodo combinato microonde-resina e l’estratto ottenuto analizzato quali-quantitativamente per via GC/MS. Gli zuccheri solubili, gli acidi organici e la vitamina C sono stati rilevati per via HPLC, mentre gli antociani totali con analisi spettrofotometrica. Dai risultati si è distinta la cultivar “Suasa rosea” per solil maggior contenuto in sostanze volatili, per il buon contenuto in zuccheri, acidi organici, antociani totali e per il maggior contenuto in solfuri dotati di attività antitumorale. Le cultivar “Dorata” e “Borettana”, contraddistinte da brattee biancastre, hanno mostrato aspetti alimentari e nutraceutici leggermente inferiori a quelli della “Suasa rosea”, mentre le cultivar “Argentina rosso cupo” e “Suasa rosso cupo” sono risultate le più apprezzabili per il contenuto in antociani totali.
Alimentary and nutraceutical quality of 2 new - short day plants - onion genotypes
Summary
In this paper the alimentary (volatile substances, soluble sugars, organic acid) and nutraceutical qualities (vitamin C, total anthocyanins, sulphurs) of 2 new – short day plants - onion genotypes, Suasa rosea and Suasa rosso cupo, obtained from CRA-ORA by the genetic improvement on Suasa (AN) local population were examined. These new genotypes were compared with the other – long day plants – onions as Dorata, Borettana and Argentina rosso cupo. The volatile characteristic substances and sulphur compounds were determined by a combinated method microwave-resin-solvent and the obtained extracts were qualiquantitatively analysed by GC/MS; the vitamin C, soluble sugars and organic acids by HPLC; total anthocyanins by spectrofotometrical analysis. The Suasa rosea had the best alimentary and nutraceutical qualities because it showed the greatest content of volatile characteristique substances, a good concentrations of soluble sugars, organic acids and total anthocyanins and the higher values of sulphur compounds (antitumoral substances). The Dorata and Borettana genotypes, characterized from dirty white bracts, had a lower alimentary and nutraceutical qualities respect of Suasa rosea, while the Argentina rosso cupo and Suasa rosso cupo were appreciated for the highest total anthocyanins content.
Downloads
Published
Issue
Section
License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Transfer of Copyright and Permission to Reproduce Parts of Published Papers.
Authors retain the copyright for their published work. No formal permission will be required to reproduce parts (tables or illustrations) of published papers, provided the source is quoted appropriately and reproduction has no commercial intent. Reproductions with commercial intent will require written permission and payment of royalties.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.