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Antioxidant activity of safflower leaves and its modification by abiotic factors

Show simple item record Ivanova, Raisa 2021-04-13T10:42:09Z 2021-04-13T10:42:09Z 2017
dc.identifier.citation Ivanova, Raisa. 2017. "Antioxidant activity of safflower leaves and its modification by abiotic factors". Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie 60(2): 193-196.
dc.description.abstract The purpose of this research was to study the changes in antioxidant activity of safflower leaves extracts under influences of various abiotic factors: a) meteorological conditions of vegetation season; b) time of sowing (fall or spring); c) pre-sowing treatment of seeds with different doses of γ-radiation. The antioxidant activity was determined by potentiometric methods against peroxyl free radicals and expressed as gallic acid equivalent (µMGAE) per g of dry residue of extract. Obtained data showed that the antioxidant activity of extracts from leaves of safflower growing in the same vegetation season had no differences and did not depend on time of sowing (fall or spring). If to compare the different vegetation seasons the differences in antioxidant activity indices was approximately by 2.0 times (in season of 2015-2016 years the antioxidant activity of leaves extracts was in medium 32-34µMGAE/g, but in season of 2016-2017 this index was equal 61-62µMGAE/g. The extracts of leaves collected from safflower, seeds of which were pre-sowing treated with different doses of γ-radiation (50, 100, 150Gy), possessed higher antioxidant activity than the extracts of safflower leaves derived from untreated seeds. en_US
dc.language.iso en en_US
dc.publisher “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi en_US
dc.subject safflower en_US
dc.subject leaves en_US
dc.subject antioxidant activity en_US
dc.subject γ-radiation en_US
dc.title Antioxidant activity of safflower leaves and its modification by abiotic factors en_US
dc.type Article en_US Raisa Ivanova, Institute of Genetics, Physiology and Plant Protection, Academy of Sciences of the Republic of Moldova, Chisinau
dc.publicationName Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie
dc.volume 60
dc.issue 2
dc.publicationDate 2017
dc.startingPage 193
dc.endingPage 196
dc.identifier.eissn 2069-6727

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