Among raw materials of communitarian origin for which monetary benefits are expected to business companies, when finished products are destined to the exportation, are included the sugars and a great importance is given to the control of utilized amounts. Moreover carbohydrates have an important role in physiological processes and for this reason a great strain has been done for the development of their determination in foods and in biological matrices. The pulsed amperometry is a powerful method of detection of carbohydrates that do not request derivatisation of the sample and this detection is particulary useful if coupled with high performance ionic chromatography. The amperometric pulsed detection utilises an amperometric cell with a gold working electrode and pulsed waveform of potentials and permits a direct and selective determination of electroactive compounds containing amine, hydroxyl or sulphur groups. In this paper high performance ionic chromatography coupled with amperometric pulsed detection was used for the determination of glucose, fructose, sucrose and lactose in chocolate based matrices. The sample, opportunely diluted and purified, is injected on a PA10 column and quantified with the method of the external standard.

Determinazione di glucosio, fruttosio, saccarosio e lattosio in matrici a base di cioccolato mediante cromatografia ionica ad alta prestazione con rivelazione amperometrica pulsata

LO COCO F;NOVELLI V
2005-01-01

Abstract

Among raw materials of communitarian origin for which monetary benefits are expected to business companies, when finished products are destined to the exportation, are included the sugars and a great importance is given to the control of utilized amounts. Moreover carbohydrates have an important role in physiological processes and for this reason a great strain has been done for the development of their determination in foods and in biological matrices. The pulsed amperometry is a powerful method of detection of carbohydrates that do not request derivatisation of the sample and this detection is particulary useful if coupled with high performance ionic chromatography. The amperometric pulsed detection utilises an amperometric cell with a gold working electrode and pulsed waveform of potentials and permits a direct and selective determination of electroactive compounds containing amine, hydroxyl or sulphur groups. In this paper high performance ionic chromatography coupled with amperometric pulsed detection was used for the determination of glucose, fructose, sucrose and lactose in chocolate based matrices. The sample, opportunely diluted and purified, is injected on a PA10 column and quantified with the method of the external standard.
2005
8884590396
File in questo prodotto:
File Dimensione Formato  
XXI Congresso Merceologia glucosio.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 171.92 kB
Formato Adobe PDF
171.92 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/856536
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact