The demand for organic food is rising since consumers want food from reliable, highest quality sources originating from the environment, undisturbed by cultivation and processing. It is necessary to determine to what extent there is a scientific basis for the claims that organic food is of high quality. In this study, beetroot from an organic production system originating from 6 certified organic food producers from different geographic locations was examined. The organic beetroot samples were processed by pasteurization at 70 ºC and 90 ºC into beet juice or by drying at 55 ºC. The following samples were tested and compared: fresh beetroot, pasteurized beet juice and dried beetroot slices. The concentration of vitamin C, level of total phenol compounds (TPC) and antioxidative activity (TAA) in beetroot were influenced by the geographic origin and the applied processing method. The highest degradation for all analysed parameters was found in the samples treated by drying or pasteurisati...on at 90 ºC. The lowest losses of studied phytochemical components were observed during juice pasteurisation at 70 ºC. The correlation coefficient between TPC and TAA was high and significant (r2 = 0.966).
TY - JOUR
AU - Pavlović, Nenad
AU - Mladenović, Jelena
AU - Stevović, Vladeta
AU - Bošković Rakočević, Ljiljana
AU - Moravčević, Đorđe
AU - Poštić, Dobrivoj
AU - Zdravković, Jasmina
PY - 2021
UR - https://plantarum.izbis.bg.ac.rs/handle/123456789/831
AB - The demand for organic food is rising since consumers want food from reliable, highest quality sources originating from the environment, undisturbed by cultivation and processing. It is necessary to determine to what extent there is a scientific basis for the claims that organic food is of high quality. In this study, beetroot from an organic production system originating from 6 certified organic food producers from different geographic locations was examined. The organic beetroot samples were processed by pasteurization at 70 ºC and 90 ºC into beet juice or by drying at 55 ºC. The following samples were tested and compared: fresh beetroot, pasteurized beet juice and dried beetroot slices. The concentration of vitamin C, level of total phenol compounds (TPC) and antioxidative activity (TAA) in beetroot were influenced by the geographic origin and the applied processing method. The highest degradation for all analysed parameters was found in the samples treated by drying or pasteurisation at 90 ºC. The lowest losses of studied phytochemical components were observed during juice pasteurisation at 70 ºC. The correlation coefficient between TPC and TAA was high and significant (r2 = 0.966).
PB - University of Novi Sad - Scientific Institute of Food Technology, Novi Sad
T2 - Food and Feed Research
T1 - Effect of processing on vitamin c content, total phenols and antioxidative activity of organically grown red beetroot (beta vulgaris ssp. Rubra)
EP - 139
IS - 2
SP - 131
VL - 48
DO - 10.5937/ffr0-31354
ER -
@article{
author = "Pavlović, Nenad and Mladenović, Jelena and Stevović, Vladeta and Bošković Rakočević, Ljiljana and Moravčević, Đorđe and Poštić, Dobrivoj and Zdravković, Jasmina",
year = "2021",
abstract = "The demand for organic food is rising since consumers want food from reliable, highest quality sources originating from the environment, undisturbed by cultivation and processing. It is necessary to determine to what extent there is a scientific basis for the claims that organic food is of high quality. In this study, beetroot from an organic production system originating from 6 certified organic food producers from different geographic locations was examined. The organic beetroot samples were processed by pasteurization at 70 ºC and 90 ºC into beet juice or by drying at 55 ºC. The following samples were tested and compared: fresh beetroot, pasteurized beet juice and dried beetroot slices. The concentration of vitamin C, level of total phenol compounds (TPC) and antioxidative activity (TAA) in beetroot were influenced by the geographic origin and the applied processing method. The highest degradation for all analysed parameters was found in the samples treated by drying or pasteurisation at 90 ºC. The lowest losses of studied phytochemical components were observed during juice pasteurisation at 70 ºC. The correlation coefficient between TPC and TAA was high and significant (r2 = 0.966).",
publisher = "University of Novi Sad - Scientific Institute of Food Technology, Novi Sad",
journal = "Food and Feed Research",
title = "Effect of processing on vitamin c content, total phenols and antioxidative activity of organically grown red beetroot (beta vulgaris ssp. Rubra)",
pages = "139-131",
number = "2",
volume = "48",
doi = "10.5937/ffr0-31354"
}
Pavlović, N., Mladenović, J., Stevović, V., Bošković Rakočević, L., Moravčević, Đ., Poštić, D.,& Zdravković, J.. (2021). Effect of processing on vitamin c content, total phenols and antioxidative activity of organically grown red beetroot (beta vulgaris ssp. Rubra). in Food and Feed Research
University of Novi Sad - Scientific Institute of Food Technology, Novi Sad., 48(2), 131-139.
https://doi.org/10.5937/ffr0-31354
Pavlović N, Mladenović J, Stevović V, Bošković Rakočević L, Moravčević Đ, Poštić D, Zdravković J. Effect of processing on vitamin c content, total phenols and antioxidative activity of organically grown red beetroot (beta vulgaris ssp. Rubra). in Food and Feed Research. 2021;48(2):131-139.
doi:10.5937/ffr0-31354 .
Pavlović, Nenad, Mladenović, Jelena, Stevović, Vladeta, Bošković Rakočević, Ljiljana, Moravčević, Đorđe, Poštić, Dobrivoj, Zdravković, Jasmina, "Effect of processing on vitamin c content, total phenols and antioxidative activity of organically grown red beetroot (beta vulgaris ssp. Rubra)" in Food and Feed Research, 48, no. 2 (2021):131-139,
https://doi.org/10.5937/ffr0-31354 . .
