Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods

This study focused on the determination of quality characteristics of homemade organic vinegars (apple, red hawthorn and yellow hawthorn) which were produced with double fermentation (ethyl alcohol and acetic acid fermentation) method by spectroscopy (UV/Fourier transform infrared) and rheology tech...

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Main Author: Muhittin Öztürk
Format: Article
Language:English
Published: Düzce University 2021-07-01
Series:Düzce Üniversitesi Bilim ve Teknoloji Dergisi
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/1586226
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author Muhittin Öztürk
author_facet Muhittin Öztürk
author_sort Muhittin Öztürk
collection DOAJ
description This study focused on the determination of quality characteristics of homemade organic vinegars (apple, red hawthorn and yellow hawthorn) which were produced with double fermentation (ethyl alcohol and acetic acid fermentation) method by spectroscopy (UV/Fourier transform infrared) and rheology technique. These absorbance peak values are associated with organic acids and phenolic compounds were determined as an important parameter in the quality evaluation of vinegars. It was determined that the flow curves of all vinegars are compatible with the non-Newtonian flow, which is the behaviour of thickening (dilatant) fluids. From the obtained results, it was thought that the antioxidant and anti-bacterial effect of yellow hawthorn vinegar would be higher due to its higher acetic acid and phenolic compound content compared to the others.
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spelling doaj.art-1e9fe7a7783f48d5ac38b4362ed424302024-02-21T14:07:29ZengDüzce UniversityDüzce Üniversitesi Bilim ve Teknoloji Dergisi2148-24462021-07-01941493150610.29130/dubited.88263497Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology MethodsMuhittin Öztürk0NİĞDE ÖMER HALİSDEMİR ÜNİVERSİTESİ/ZÜBEYDE HANIM SAĞLIK HİZ. MYO/OPTİSYENLİK PROGRAMIThis study focused on the determination of quality characteristics of homemade organic vinegars (apple, red hawthorn and yellow hawthorn) which were produced with double fermentation (ethyl alcohol and acetic acid fermentation) method by spectroscopy (UV/Fourier transform infrared) and rheology technique. These absorbance peak values are associated with organic acids and phenolic compounds were determined as an important parameter in the quality evaluation of vinegars. It was determined that the flow curves of all vinegars are compatible with the non-Newtonian flow, which is the behaviour of thickening (dilatant) fluids. From the obtained results, it was thought that the antioxidant and anti-bacterial effect of yellow hawthorn vinegar would be higher due to its higher acetic acid and phenolic compound content compared to the others.https://dergipark.org.tr/tr/download/article-file/1586226keywords: vinegaruv spectraftir spectraacetic acidorganic acidsphenolic compoundsrheologynon-newtonian flowdilatant fluidssirkeuv spektrumftir spektrumasetik asitorganik asitlerfenolik bileşiklerreolojinewton olmayan akışgenişleyen akışkanlar
spellingShingle Muhittin Öztürk
Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods
Düzce Üniversitesi Bilim ve Teknoloji Dergisi
keywords: vinegar
uv spectra
ftir spectra
acetic acid
organic acids
phenolic compounds
rheology
non-newtonian flow
dilatant fluids
sirke
uv spektrum
ftir spektrum
asetik asit
organik asitler
fenolik bileşikler
reoloji
newton olmayan akış
genişleyen akışkanlar
title Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods
title_full Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods
title_fullStr Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods
title_full_unstemmed Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods
title_short Determination of Quality in Homemade Vinegars by Spectroscopy and Rheology Methods
title_sort determination of quality in homemade vinegars by spectroscopy and rheology methods
topic keywords: vinegar
uv spectra
ftir spectra
acetic acid
organic acids
phenolic compounds
rheology
non-newtonian flow
dilatant fluids
sirke
uv spektrum
ftir spektrum
asetik asit
organik asitler
fenolik bileşikler
reoloji
newton olmayan akış
genişleyen akışkanlar
url https://dergipark.org.tr/tr/download/article-file/1586226
work_keys_str_mv AT muhittinozturk determinationofqualityinhomemadevinegarsbyspectroscopyandrheologymethods