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Correlation of antioxidant activity with polyphenolic content in soybeans

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Authors
Tepavčević, Vesna
Cvejić, Jelena
Malenčić, Ðorđe
Miladinović, Jegor
Popović, Jovan
Article (Published version)
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Abstract
Twenty soybean cultivars were analysed for their antioxidant activity and content of isoflavones, flavonoids and total polyphenolics. After extraction with methanol-water (8:2, v/v), isoflavones were determined by C-18 reversed phase high-performance liquid chromatography coupled with photodiode array detector. Flavonoid and total polyphenolic content contents were established spectrophotometrically. Antioxidant activities of soybean extracts were measured using 2,2-diphenyl-1-pycril-hydrazil free radical method. Cultivars most abundant in polyphenolic compounds expressed the highest DPPH-radicals scavenging activities. Genotypes with low content of total polyphenolics, expressed approximately half of the activity of polyphenolic-rich genotypes. Correlation between total polyphenolic content and antioxidant activity was found to be statistically significant (p lt 0.01). At the same time, no correlation was found between content of isoflavones and antioxidant activity or content of flav...onoids and antioxidant activity. The results suggested that total polyphenolic content could be considered a useful marker of antioxidant activity in soybeans and, beside isoflavone content, one of the criterions for identifying the cultivars with better health-promoting characteristics.

Keywords:
soybeans / isoflavones / polyphenolic content / antioxidant activity / DPPH assay
Source:
Oxidation Communications, 2009, 32, 3, 697-706

ISSN: 0209-4541

WoS: 000270573500017

Scopus: 2-s2.0-70350430155
[ Google Scholar ]
2
2
URI
http://fiver.ifvcns.rs/handle/123456789/766
Collections
  • Radovi istraživača / Researchers' papers
Institution/Community
FiVeR
TY  - JOUR
AU  - Tepavčević, Vesna
AU  - Cvejić, Jelena
AU  - Malenčić, Ðorđe
AU  - Miladinović, Jegor
AU  - Popović, Jovan
PY  - 2009
UR  - http://fiver.ifvcns.rs/handle/123456789/766
AB  - Twenty soybean cultivars were analysed for their antioxidant activity and content of isoflavones, flavonoids and total polyphenolics. After extraction with methanol-water (8:2, v/v), isoflavones were determined by C-18 reversed phase high-performance liquid chromatography coupled with photodiode array detector. Flavonoid and total polyphenolic content contents were established spectrophotometrically. Antioxidant activities of soybean extracts were measured using 2,2-diphenyl-1-pycril-hydrazil free radical method. Cultivars most abundant in polyphenolic compounds expressed the highest DPPH-radicals scavenging activities. Genotypes with low content of total polyphenolics, expressed approximately half of the activity of polyphenolic-rich genotypes. Correlation between total polyphenolic content and antioxidant activity was found to be statistically significant (p lt 0.01). At the same time, no correlation was found between content of isoflavones and antioxidant activity or content of flavonoids and antioxidant activity. The results suggested that total polyphenolic content could be considered a useful marker of antioxidant activity in soybeans and, beside isoflavone content, one of the criterions for identifying the cultivars with better health-promoting characteristics.
T2  - Oxidation Communications
T1  - Correlation of antioxidant activity with polyphenolic content in soybeans
EP  - 706
IS  - 3
SP  - 697
VL  - 32
UR  - conv_3109
ER  - 
@article{
author = "Tepavčević, Vesna and Cvejić, Jelena and Malenčić, Ðorđe and Miladinović, Jegor and Popović, Jovan",
year = "2009",
abstract = "Twenty soybean cultivars were analysed for their antioxidant activity and content of isoflavones, flavonoids and total polyphenolics. After extraction with methanol-water (8:2, v/v), isoflavones were determined by C-18 reversed phase high-performance liquid chromatography coupled with photodiode array detector. Flavonoid and total polyphenolic content contents were established spectrophotometrically. Antioxidant activities of soybean extracts were measured using 2,2-diphenyl-1-pycril-hydrazil free radical method. Cultivars most abundant in polyphenolic compounds expressed the highest DPPH-radicals scavenging activities. Genotypes with low content of total polyphenolics, expressed approximately half of the activity of polyphenolic-rich genotypes. Correlation between total polyphenolic content and antioxidant activity was found to be statistically significant (p lt 0.01). At the same time, no correlation was found between content of isoflavones and antioxidant activity or content of flavonoids and antioxidant activity. The results suggested that total polyphenolic content could be considered a useful marker of antioxidant activity in soybeans and, beside isoflavone content, one of the criterions for identifying the cultivars with better health-promoting characteristics.",
journal = "Oxidation Communications",
title = "Correlation of antioxidant activity with polyphenolic content in soybeans",
pages = "706-697",
number = "3",
volume = "32",
url = "conv_3109"
}
Tepavčević, V., Cvejić, J., Malenčić, Ð., Miladinović, J.,& Popović, J.. (2009). Correlation of antioxidant activity with polyphenolic content in soybeans. in Oxidation Communications, 32(3), 697-706.
conv_3109
Tepavčević V, Cvejić J, Malenčić Ð, Miladinović J, Popović J. Correlation of antioxidant activity with polyphenolic content in soybeans. in Oxidation Communications. 2009;32(3):697-706.
conv_3109 .
Tepavčević, Vesna, Cvejić, Jelena, Malenčić, Ðorđe, Miladinović, Jegor, Popović, Jovan, "Correlation of antioxidant activity with polyphenolic content in soybeans" in Oxidation Communications, 32, no. 3 (2009):697-706,
conv_3109 .

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