Antioxidant Activity of <i>β</i>-Glucan

Kofuji, Kyoko; Aoki, Ayumi; Tsubaki, Kazufumi; Konishi, Masanori; Isobe, Takashi; Murata, Yoshifumi

doi:10.5402/2012/125864

Cited by 112 publications

(87 citation statements)

References 13 publications

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“…Arguably, the nature of interaction between the β-glucan content and the contamination with DON and its role in resistance is source of debate. On the one hand, a higher β-glucan content might enhance the resistance against DON accumulation thus contributing to type V resistance by antioxidant activity of β-glucan (Kofuji et al 2012). Indeed, several studies demonstrated the inhibitive potential of natural antioxidant compounds on the production of mycotoxins (Boutigny et al 2010;Pani et al 2014;Zhou et al 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Hence, tracing the content in β-glucan of the grain after infection will help to understand the impact of the infection on the grain's biochemical composition and metabolism. β-glucan also possesses antioxidant activity (Kofuji et al 2012). Antioxidant compounds are a recognized factor of the plant's defence system to cope with biotic aggressors (Lattanzio et al 2006;Zhou et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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Resistance against Fusarium graminearum and the relationship to β-glucan content in barley grains

et al. 2018

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Fusarium head blight (FHB) caused by Fusarium graminearum (FG) is a destructive disease impacting barley worldwide. The disease reduces the grain yield and contaminates grains with mycotoxins, such as the trichothecene deoxynivalenol (DON). Although the infection mainly affects the grain yield, little is known about its impact on grain structural and biochemical properties. Yet, such information is instrumental to characterize the facets of resistance in the grains. After artificial inoculation of six barley cultivars with FG in a 2 years field test, different levels of symptoms on spikes, of colonisation of grains and of DON content were observed. The infections caused a reduction in grain weight and an average decrease of 10% of the β-glucan content in grains, indicating alterations of grain filling, composition and structure. According to our results, we postulate the presence of two distinct resistance mechanisms in the grain, tolerance to grain filling despite infection as well as the inhibition of mycotoxin accumulation. Differently to wheat, in barley, type IV resistance (tolerance of the grain to infection) is directly linked with type III resistance (resistance against kernel infection). The resistance against toxin accumulation (named type V resistance in wheat) appeared to be independent to all other resistance types. Generally, the resistance was significantly influenced by the environment and by genotype x environment interactions explaining the generally weak stability of resistance in barley. Interestingly, a significant and inverse relationship between DON contamination and β-glucan content in grains suggests that high β-glucan content in grains contributes to type V resistance.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Resistance against Fusarium graminearum and the relationship to β-glucan content in barley grains

et al. 2018

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“…β-Glucan is a natural component of grain that possesses important antioxidant activity (Kofuji et al, 2012).Polysaccharides from plants have been demonstrated to be one of most promising groups of antioxidant compounds (Ng et al, 2004). Polygalacturonase extracted from barley exerts a noteworthy antioxidant effect as well as various biological activities (Kofuji et al, 2012).…”

Section: Biochemical Estimationmentioning

confidence: 99%

“…Polygalacturonase extracted from barley exerts a noteworthy antioxidant effect as well as various biological activities (Kofuji et al, 2012).…”

Section: Biochemical Estimationmentioning

confidence: 99%

Accumulation of antioxidants in rice callus (Oryza sativa L.) induced by β-glucan and salt stress

Alhasnawi¹,

Zain²,

Kadhimi³

et al. 2017

Aust J Crop Sci

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Salinity stress causes a considerable reduction in callus growth. Mushroom polysaccharides (β-glucan) are the most promising groups of antioxidant compounds. An in vitro experiment was conducted to evaluate the potential function of exogenously applied β-glucan in alleviating the accumulation of antioxidants in rice callus. In this study, morphological, chemical, and biochemical parameters of an embryogenic callus of the rice variety, MR269, were investigated under 200mM NaCl stress conditions after pre-treatment with (0, 0.5, 1 and 1.5 mg/L) β-glucan in culture media. The present study sought to evaluate chemical, biochemical, and callus growth characterization. The results revealed that callus exposed to stressful media exhibited a significant decrease in callus growth and contents of K + and Ca +2. In addition, significant accumulation of Na + and Na + /K + was found, as well as an enhanced enzymatic antioxidant system and elevated proline activities under NaCl conditions. Furthermore, exogenous addition of β-glucan at 0.5-1.5mg/L under NaCl stress induced a pronounced, significant increase of callus growth, K + and Ca +2 contents, and enzymatic antioxidant and proline activities. In contrast, a significant decrease was found in the levels of Na + and Na + /K + , particularly in callus treated with NaCl. β-Glucan ameliorates the adverse effects of NaCl stress, and the extent of amelioration depends on the type of β-glucan agent as well as treatment duration (three months). The changes mentioned are important for determining the morphological, chemical, and biochemical parameters of salinity tolerance in callus. This study demonstrated that exogenous β-glucan exhibits alleviation of the harmful effects of salt stress and increases salinity resistance in callus rice.

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“…β- (1,3) glycosidic bonds in the molecule 3 of oat beta-glucan allow solubility in water and indicate several biological activities. Among recently studied is the ability to scavenge reactive oxygen species (ROS) like very reactive hydroxyl radicals [5]. Moreover beta-glucans are also claimed to enhance the host immune system and increase organism defense against invading pathogens, as well as alleviate inflammation [6].…”

Section: Introductionmentioning

confidence: 99%

Hepato- and gastro- protective activity of purified oat 1–3, 1–4-β- d -glucans of different molecular weight

Suchecka

Harasym

Wilczak

et al. 2016

International Journal of Biological Macromolecules

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Antioxidant Activity of β-Glucan

Cited by 112 publications

References 13 publications

Resistance against Fusarium graminearum and the relationship to β-glucan content in barley grains

Resistance against Fusarium graminearum and the relationship to β-glucan content in barley grains

Accumulation of antioxidants in rice callus (Oryza sativa L.) induced by β-glucan and salt stress

Hepato- and gastro- protective activity of purified oat 1–3, 1–4-β- d -glucans of different molecular weight

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