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. 2018 Aug;32(15):1867-1871.
doi: 10.1080/14786419.2017.1405405. Epub 2017 Nov 20.

Determination of lignans, phenolic acids and antioxidant capacity in transformed hairy root culture of Linum usitatissimum

Ahmed M M Gabr  1   2 , Hoda B Mabrok  3 , Emam A Abdel-Rahim  4 , Mohamed K El-Bahr  1 , Iryna Smetanska  2
Affiliations

Determination of lignans, phenolic acids and antioxidant capacity in transformed hairy root culture of Linum usitatissimum

Ahmed M M Gabr et al. Nat Prod Res. 2018 Aug.

Abstract

Hairy root culture is a promising alternative method for the production of secondary metabolites. In this study, transformed root of Linum usitatissimum was established using Agrobacterium rhizogenes A4 strain from root cultures for lignans, phenolic acids and antioxidant capacity determination. Total lignin content (secoisolariciresinol diglucoside, secoisolariciresinol and matairesinol) was 55.5% higher in transformed root cultures than in the non-transformed root culture. Secoisolariciresinol was detected in higher concentration (2.107 μmol/g DM) in the transformed root culture than non-transformed culture (1.099 μmol/g DM). Secoisolariciresinol diglucoside and matairesinol were exclusively detected in the transformed root culture, but were not found in the non-transformed root culture. The overall production of phenolic acids in transformed roots was approximately 3.5 times higher than that of the corresponding non-transformed culture. Free radical scavenging DPPH˙ and ABTS˙+ assays showed 2.9-fold and 1.76-fold higher anti-oxidant activity in transformed root culture as compared to non-transformed.

Keywords: Agrobacterium rhizogenes; Linum usitatissimum; antioxidant capacity; hairy root culture; lignans; phenolic acids.

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