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Ascorbic acid determination from alcoholic and soft drinks by different techniques
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| dc.contributor.author | VARODI, C. | |
| dc.contributor.author | SORAN, M.-L. | |
| dc.contributor.author | LUNG, I. | |
| dc.contributor.author | OPRIȘ, O. | |
| dc.contributor.author | MUREȘAN, L. | |
| dc.date.accessioned | 2019-11-15T11:30:16Z | |
| dc.date.available | 2019-11-15T11:30:16Z | |
| dc.date.issued | 2016 | |
| dc.identifier.citation | VARODI, C., SORAN, M.-L., LUNG, I. et al. Ascorbic acid determination from alcoholic and soft drinks by different techniques. In: Modern technologies, in the food industry–2016 (MTFI-2016): proc. of the intern. conf., 20-22 october, 2016. Chişinău, 2016, pp. 395-400. ISBN 978-9975-87-138-9. | en_US |
| dc.identifier.isbn | 978-9975-87-138-9 | |
| dc.identifier.uri | http://repository.utm.md/handle/5014/6928 | |
| dc.description.abstract | The present study consists in a comparative evaluation of the L-ascorbic acid (AA) concentration from some commercial Romanian juices and wines. The samples was analyzed by high-performance liquid chromatography (HPLC) on an Alltima C(18) column with isocratic elution of methanol and water with formic acid (pH 3) (65:35, v/v) at a flow rate of 0.3 mL/min, a column temperature of 26°C, and UV detection at 243 nm. The amperometric measurements were carried out under magnetic stirring using 0.1 M phosphate buffer solution as supporting electrolyte and pH 7 with a new biosensor, consisting in ascorbate oxidase (AOx) and bovine serum albumine immobilization on the membrane of an oxygen electrode, followed by cross-linking with glutaraldehyde (GA). Our study showed that the biosensor works well in synthetic samples of AA and may be recommended for testing in real samples (wine and fruit juices). | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Tehnica UTM | en_US |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
| dc.subject | L-ascorbic acid | en_US |
| dc.subject | HPLC | en_US |
| dc.subject | electrochemical method | en_US |
| dc.title | Ascorbic acid determination from alcoholic and soft drinks by different techniques | en_US |
| dc.type | Article | en_US |
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