Quality assessment of fruit juices by NIR spetroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F13%3A00200388" target="_blank" >RIV/62156489:43510/13:00200388 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.mendelu.cz/cz/veda_vyzkum/acta/ac313" target="_blank" >http://www.mendelu.cz/cz/veda_vyzkum/acta/ac313</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11118/actaun201361030803" target="_blank" >10.11118/actaun201361030803</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Quality assessment of fruit juices by NIR spetroscopy

Popis výsledku v původním jazyce

Possibilities of detection of substances used for adulteration of fruit juices were investigated in juice products distributed within the framework of retail stores network. This detection was performed by the method of near-infrared spectroscopy (NIR).Analysed were samples of orange, apple, and grapefruit juices. At first it was assessed if their quality parameters (soluble dry matter, total acids, formol number, malic acid, citric acid, ascorbic acid, lactic acid, specific density and ethanol content) did correspond with the limit values specified by the Association of the Industries of Juices and Nectars. Altogether 45 various fruit juices were analysed and it was found out that in 10 cases at least one parameter was out of the approved limits. Thereafter, juice samples were mixed with different amounts of water and sugar and, besides, they were also mixed together. The objective of this mixing was to find out if it is possible to detect, by the NIR spectroscopy, those juices that

Název v anglickém jazyce

Quality assessment of fruit juices by NIR spetroscopy

Popis výsledku anglicky

Possibilities of detection of substances used for adulteration of fruit juices were investigated in juice products distributed within the framework of retail stores network. This detection was performed by the method of near-infrared spectroscopy (NIR).Analysed were samples of orange, apple, and grapefruit juices. At first it was assessed if their quality parameters (soluble dry matter, total acids, formol number, malic acid, citric acid, ascorbic acid, lactic acid, specific density and ethanol content) did correspond with the limit values specified by the Association of the Industries of Juices and Nectars. Altogether 45 various fruit juices were analysed and it was found out that in 10 cases at least one parameter was out of the approved limits. Thereafter, juice samples were mixed with different amounts of water and sugar and, besides, they were also mixed together. The objective of this mixing was to find out if it is possible to detect, by the NIR spectroscopy, those juices that

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis

ISSN

1211-8516

e-ISSN

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Svazek periodika

61

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

803-812

Kód UT WoS článku

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EID výsledku v databázi Scopus

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