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Comparisons of phenolic compounds, isoflavones, antioxidant capacity and oxidative enzymes in yellow and black soybeans seed coat and dehulled bean

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2013
Authors
Žilić, Slađana
Perić, Vesna
Akillioglu, Gul
Gokmen, Vural
Serpen, Arda
Article (Published version)
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Abstract
The total and individual phenolic profiles and their contribution to antioxidant capacities of seed coats and dehulled beans of black and yellow soybeans were investigated. In addition, lipoxygenase (LOX) and peroxidase (POD) activities were also determined. Black seed coats had the highest content of total phenols, flavonoids and anthocyanins, in addition the highest catechin and protocatechin contents. On the other hand, dehulled beans from yellow soybeans had the highest levels of ferulic and p-coumaric acid content, and free and bound isoflavone content. The LOX activity was concentrated in the dehulled beans of both black and yellow soybeans, while a high POD activity that can be attributed to a dominant gene EpEp was presented in seed coats of yellow soybean genotype Galeb. Due to the high concentration of phenols, the black seed coats from soybean genotypes Black Tokio and Cornaja had the highest ABTS(center dot+)-scavenging capacity (597.46 and 486.15 mmol Trolox Eq./kg d.m., r...espectively). The results suggest that the black seed coat as well as dehulled bean from yellow soybeans would potentially provide sources of natural antioxidants that may play a crucial role in human health protection.

Keywords:
antioxidant activity / Isoflavones / Oxidative enzymes / Phenolic profiles / Soybean
Source:
European Food Research and Technology, 2013, 237, 3, 409-418
Publisher:
  • Springer, New York
Funding / projects:
  • Utilization of plant sources of protein, dietary fiber and antioxidants in food production (RS-31069)

DOI: 10.1007/s00217-013-2005-y

ISSN: 1438-2377

WoS: 000323334800014

Scopus: 2-s2.0-84881513708
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URI
http://rik.mrizp.rs/handle/123456789/475
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