Influenza dei metodi di estrazione e di purificazione sul dosaggio in HPLC degli idrossifenoli
Articolo
Data di Pubblicazione:
1984
Citazione:
Influenza dei metodi di estrazione e di purificazione
sul dosaggio in HPLC degli idrossifenoli / Premoli, Alessandra Maria; Solinas, Vincenzo; Deiana, Salvatore Andrea. - In: STUDI SASSARESI. SEZIONE 3: ANNALI DELLA FACOLTÀ DI AGRARIA DELL'UNIVERSITÀ DI SASSARI. - ISSN 0562-2662. - 31:(1984), pp. 105-117.
Abstract:
Four different extraction methods were compard, in oder to optimize the HPLC separation and quantitation
of hydroxyphenols in «Thymus capitatus». One method was not suitable for HPLC ansly,is, whereas
the others partially destroyed the hydroxyphenols extracted from the plant. The Charpentier-Cowles me
thod was, found the most effective allowing to analyse, in spite of the losses, most of the free phenolic
acids and of those bounded extractable in hot acidic medium but not in ethanol. For the phenolics in free
form a method whith recoverier greater than those obtained with Hagerman Nicholson and Horvat-Senter
methods was developed.
of hydroxyphenols in «Thymus capitatus». One method was not suitable for HPLC ansly,is, whereas
the others partially destroyed the hydroxyphenols extracted from the plant. The Charpentier-Cowles me
thod was, found the most effective allowing to analyse, in spite of the losses, most of the free phenolic
acids and of those bounded extractable in hot acidic medium but not in ethanol. For the phenolics in free
form a method whith recoverier greater than those obtained with Hagerman Nicholson and Horvat-Senter
methods was developed.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
HPLC; phenols; hydroxyphenols; extraction and clean-up methods;Thymus capitatus
Elenco autori:
Premoli, Alessandra Maria; Solinas, Vincenzo; Deiana, Salvatore Andrea
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