Irradiation Effects on Phenolic Content, Lipid and Protein Oxidation and Scavenger Ability of Soybean Seeds

Štajner, Dubravka; Milošević, Milan; Popović, Boris M.

doi:10.3390/i8070618

Cited by 97 publications

(64 citation statements)

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“…The initial content of soluble protein for cultivar NA 5909 RG was 104.26 mg.g -1 , being similar for cultivar Benso1RR, with a content of 110.11 mg.g -1 , being close to the value found by Stajner et al (2007) who have observed 95 mg.g -1 of soluble protein in soybean seeds, and the authors have not observed any changes when different γ radiation dosages were applied to the seeds, and no difference was observed in the soluble protein contents of this study among the seeds from desiccated plants regarding their control (Table 1).…”

Section: Resultssupporting

confidence: 66%

“…In 48 h of soaking, seeds from desiccated plants reached almost the same percentage (100%) of root protrusion compared to their controls (Figure 2), indicating the start of phase III. Similar data for soybeans and beans seeds have been observed, and phase III occurs at 40 hours of soaking for soybeans seeds and at 30 h for beans seeds (Teulat-Merah et al, 2011;Cheng et al, 2009).…”

Section: Resultssupporting

confidence: 63%

“…The seeds germination process corresponds to three stages; initially, the first stage of water absorption, which occurs quickly and passively; afterwards, the second stage, which is characterized by delayed water absorption; and the third phase, where again the seeds begin to absorb water quickly (Teulat-Merah et al, 2011;Weitbrecht et al, 2011) From the precise moment when each of the three stages starts and ends in the germination process of soybean seeds, it becomes easier to infer the possible effects of desiccant application in soybean plants in reproductive stage R7.1, on the seeds physiological quality and their subsequent effect on the germination process and vigor.…”

Section: Introductionmentioning

confidence: 99%

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Mobilization of reserves and vigor of soybean seeds under desiccation with glufosinate ammonium

2015

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-The physiological quality of seeds depends on the cellular organization and their capacity to mobilize reserves. The goal of this study was to assess the germination and vigor of soybeans seeds of Benso1RR and NA 5909 RG cultivars from desiccated plants or not, by mobilizing reserves. Cultivars from desiccated plants or not, by mobilizing reserves. The plants were desiccated with glufosinate ammonium (GLA) in reproductive stage R7.1 or not (TST). The physiological seed quality was assessed by germination tests, accelerated aging and seedling length. For the mobilization of reserves were assessed within 48 hours of soaking: phytate, protein and soluble sugar contents. In 48 hours of soaking, seeds from desiccated plants in cultivar NA 5909 RG showed lower mobilization of soluble protein and soluble sugar, reflecting low vigor seedlings compared to their controls. For cultivar Benso1RR, in 48 hours of soaking, the application of GLA did not affect the mobilization of soluble protein when compared to control and did not differ as to vigor. It is concluded that the use of the desiccant has negatively influenced the mobilization of soluble protein and soluble sugar for cultivar NA 5909 RG, reflecting a low percentage of germination and low vigor.Index terms: vigor, herbicide, protein, soluble sugar.Mobilização de reservas e vigor de sementes de soja sob dessecação com glufosinato de amônio RESUMO -A qualidade fisiológica em sementes depende da organização celular e da sua capacidade de mobilização de reservas. O objetivo do trabalho foi avaliar a germinação e vigor das sementes de soja das cultivares Benso1RR e NA 5909 RG proveniente de plantas dessecadas ou não, através da mobilização de reservas. As plantas foram dessecadas com glufosinato de amônio (GLA) no estádio reprodutivo R7.1 ou não (TST). A qualidade fisiológica das sementes foi avaliada através dos testes de germinação, envelhecimento acelerado e comprimento de plântula. Para a mobilização de reservas foram avaliados em até 48 h de embebição, teores de fitato, proteína e açúcar solúvel. Em 48 h de embebição sementes provenientes de plantas dessecadas da cultivar NA 5909 RG apresentaram menor mobilização de proteína solúvel e açúcar solúvel refletindo em plântulas de baixo vigor em relação a sua testemunha. Para a cultivar Benso1RR em 48 h de embebição, a aplicação do GLA não afetou a mobilização de proteína solúvel quando comparada à testemunha, não diferindo quanto ao vigor. Conclui-se que a utilização do dessecante influenciou negativamente na mobilização de proteína solúvel e açúcar solúvel para a cultivar NA 5909 RG refletindo em baixo percentual de germinação e baixo vigor.Termos para indexação: vigor, herbicida, proteína, açúcar solúvel.

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Section: Resultssupporting

confidence: 66%

Section: Resultssupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

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Mobilization of reserves and vigor of soybean seeds under desiccation with glufosinate ammonium

2015

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“…It were shown that gamma radiation can increases (Moussaid et al, 2000, Mechi et al 2005, Miranda et al 2006, Bhat et al 2007, Stajner et al 2007, decreases (Villavicencio et al 2000;Brigide & Canniatti-Brazaca, 2006, Toledo et al, 2007 or unchanged levels of total phenols and/or tannins (Koseki et al, 2002) in plant extracts from some plants, and raw or cooked, which had considerable percentage of moisture, favoring the indirect effects of radiation (Mechi et al, 2005, Brigid & Canniatti-Brazaca, 2006. These studies are unprecedented as the characterization of dry vegetable matter, which dominates the interaction of gamma radiation from the direct effect.…”

Section: Resultsmentioning

confidence: 99%

Influence of gamma radiation on the antimicrobial activity of crude extracts of Anacardium occidentale L., Anacardiaceae, rich in tannins

Santos¹,

Silva²,

Silva³

et al. 2011

Rev. bras. farmacogn.

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Anacardium occidentale L. Anacardiaceae, known as cashew, commonly found in northeastern of Brazil, has high levels of secondary metabolites, particularly tannins, used as raw material for herbal medicines. An effi cient alternative to decontaminate plant products is the total sterilization or reduction of the initial microbial count, the process of gamma irradiation with 60 Co. The objective of this study was to analyze the antimicrobial activity of crude extracts of bark and leaves of A. occidentale, based on the quantifi cation of total phenols and tannins, before and after exposure to gamma radiation from 60 Co. The extracts were obtained in the laboratory by cold maceration in ethanol, fi ltered and dryness. They were divided into non-irradiated control group (0 kGy) and irradiated: groups exposed to gamma radiation at doses of 5, 7.5 and 10 kGy. The total phenols was obtained by the Folin-Ciocalteau method and tannins, by the precipitation of casein. The antimicrobial potential activities of these extracts were also evaluated. The results showed that gamma radiation doses employed in this study did not infl uence statistically the percentage of total phenols and tannins in the bark extracts, at levels ranging from 5.73±0.14 and 5.20±0.14, respectively. The levels of metabolites in the leaves were statistically (p<0.05) infl uenced by radiation, observed average total phenols between 3.13±0.04 (0 kGy) and 3.50±0.08 (10 kGy), and tannin between 2.47±0.06 (0 kGy) and 2.93±0.04 (10 kGy). The extracts of bark and leaves were active against Staphylococcus aureus, Micrococcus luteus, Bacillus subtilis, Enterococcus faecalis, Mycobacterium smegmatis, Candida albicans. Gamma radiation caused an increase in antimicrobial activity of extracts against Staphylococcus aureus (Gram positive), with average inhibition zones for shells: 14.33±058 (0 kGy) and 22.33±0.58 (10 kGy), and leaves: 11.33±0.58 (0 kGy) and 19.00±1.00 (10 kGy). Exposure to radiation caused changes in physical and chemical constituents of phenolic extracts of leaves of cashew, increasing levels of tannins.

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“…•-) radicals that are generated by irradiation could modify the molecular properties of the proteins and lipids, causing oxidative modifications of the proteins and lipid peroxidation (LP) [7,8]. Chemical changes of the proteins that are caused by γ-irradiation include fragmentation, cross-linking, aggregation and oxidation resulting from oxygen radicals that are generated in the radiolysis of water [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of γ-irradiation on antioxidant activity in soybean seeds

2009

Self Cite

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There are some reports that low doses of γ-irradiation could induce antioxidant activities in plant material, including soybean. Irradiation, required for the inactivation of some pathogens and induction of mutations, may have adverse effects on sensorial, nutritional and antioxidant qualities. The effects of different γ-irradiation doses (100-200 Gy) on antioxidant properties of soybean seeds was investigated. In this study, we report the results obtained by analysis of antioxidant enzyme activities, reduced glutathione, malonyldialdehyde (MDA) and hydroxyl (HO˙) radical quantities, soluble protein content, and total antioxidant activity in irradiated soybean seeds. Antioxidant enzyme activities were affected due to high irradiation intensity. Significant changes of total antioxidant activity and MDA and HO˙quantities were observed only under the highest irradiation dose, with a 15.7% reduction in total antioxidant activity, MDA quantity increase of 21.6%, and HO˙ radical quantity increase of 79.3% compared to the non-irradiated control. The total soluble protein content increased slightly.

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Irradiation Effects on Phenolic Content, Lipid and Protein Oxidation and Scavenger Ability of Soybean Seeds

Cited by 97 publications

References 20 publications

Mobilization of reserves and vigor of soybean seeds under desiccation with glufosinate ammonium

Mobilization of reserves and vigor of soybean seeds under desiccation with glufosinate ammonium

Influence of gamma radiation on the antimicrobial activity of crude extracts of Anacardium occidentale L., Anacardiaceae, rich in tannins

Effects of γ-irradiation on antioxidant activity in soybean seeds

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