Stanovení vybraných parametrů medu pomocí FT-NIR spektrometrie

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F10%3A00002854" target="_blank" >RIV/62157124:16270/10:00002854 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

čeština

Název v původním jazyce

Stanovení vybraných parametrů medu pomocí FT-NIR spektrometrie

Popis výsledku v původním jazyce

Fourier Transform Near Infrared (FT-NIR) spectroscopy was used to assess the chemical composition of fresh honey samples. Samples (n = 42) were obtained from beekeepers, small shops and supermarkets in Brno and surroundings. The sample parameters (watercontent, water activity, electrical conductivity, pH and HMF) were assessed using both standard methods and FT-NIR spectroscopy. Honey samples were scanned in transflectance (0.5 mm path-length) in a FT-NIR Analyser in near infrared region (10 000 ? 4 000 cm-1). Calibration models were developed using partial least squares method and verified by cross validation. The following statistical values were obtained: correlation coefficient of calibration R = 0.99 and standard error of cross validation SECV =0.33 for water content, R = 0.97 and SECV = 0.01 for water activity, R = 0.90 and SECV = 0.17 for pH, R = 0.99 and SECV = 18 for HMF, R = 0.99 and SECV = 14 for electrical conductivity. The results demonstrate that near infrared spectrome

Název v anglickém jazyce

Evaluation of honey quality characterictics by FT-NIR spectrometry

Popis výsledku anglicky

Fourier Transform Near Infrared (FT-NIR) spectroscopy was used to assess the chemical composition of fresh honey samples. Samples (n = 42) were obtained from beekeepers, small shops and supermarkets in Brno and surroundings. The sample parameters (watercontent, water activity, electrical conductivity, pH and HMF) were assessed using both standard methods and FT-NIR spectroscopy. Honey samples were scanned in transflectance (0.5 mm path-length) in a FT-NIR Analyser in near infrared region (10 000 ? 4 000 cm-1). Calibration models were developed using partial least squares method and verified by cross validation. The following statistical values were obtained: correlation coefficient of calibration R = 0.99 and standard error of cross validation SECV =0.33 for water content, R = 0.97 and SECV = 0.01 for water activity, R = 0.90 and SECV = 0.17 for pH, R = 0.99 and SECV = 18 for HMF, R = 0.99 and SECV = 14 for electrical conductivity. The results demonstrate that near infrared spectrome

Druh

D - Stať ve sborníku

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Food Hygiene and Technology 40th Lenfelds and Hökls Days

ISBN

978-80-7305-121-1

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

Veterinární a farmaceutická univerzita Brno

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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