Differential antioxidant activity of glucuronoxylooligosaccharides (UXOS) and arabinoxylooligosaccharides (AXOS) produced by two novel xylanases

Bouiche, Cilia; Boucherba, Nawel; Benallaoua, Saı̈d; Martínez, Josefina; Dı́az, Pilar; Pastor, F. I. Javier; Valenzuela, Susana V.

doi:10.1016/j.ijbiomac.2019.11.073

Cited by 23 publications

(6 citation statements)

References 49 publications

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“…Antioxidant activity for different XOS is not the same and depends on the type of substitution. Thus, the antioxidant activity of UXOS is higher than that of AXOS [57,58]. The highest antioxidant activity was found for XOS with ferulic acid substituents [59].…”

Section: Xos and Human Healthmentioning

confidence: 89%

Xylooligosaccharides from Biomass Lignocellulose: Properties, Sources and Production Methods

Dyshlyuk,

Ulrikh,

Agafonova

et al. 2024

RAS

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Xylooligosaccharides are functional food supplements that refer to indigestible oligosaccharides consisting of D-xylose molecules linked by β-1,4-glycosidic bonds. Xylooligosaccharides in the human body perform the functions of prebiotics; they have antioxidant, immunomodulatory and antitumor effects. In industry, xylooligosaccharides are obtained from lignocellulosic biomass by hydrolysis of the xylan contained therein. Chemical hydrolysis is carried out with acid or alkali solutions and is associated with negative environmental consequences. Autohydrolysis refers to methods of physical impact on lignocellulosic raw materials, in which, under the action of high pressure and temperature, steam cracking of raw materials and separation of carbohydrates into fractions occur. Enzymatic hydrolysis of xylan provides the purest products and allows you to control the functional orientation of the resulting xylooligosaccharides. Hydrolysis of xylan to obtain xylooligosaccharides is carried out by microbial xylanases and β-xylosidases produced by bacteria, molds, and actinomycetes. Xylanase producers are ubiquitous in lignocellulosic raw materials and isolated from soil, corn cobs, wheat husks, rice and wheat straw, sugarcane bagasse, oil palm waste, wood chips, sugar bagasse, forest litter, and eucalyptus leaves.

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Section: Xos and Human Healthmentioning

confidence: 89%

Xylooligosaccharides from Biomass Lignocellulose: Properties, Sources and Production Methods

Dyshlyuk,

Ulrikh,

Agafonova

et al. 2024

RAS

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“…Jagtap et al revealed that the percent of antioxidant activity gradually increased reaching the maximum, 74% at a concentration of 6 mg/ml XOS using 1,1-diphenyl-2-picryl-hydrazyl (DPPH) assay, after which it did not show any further increase ( 56 ). Bouiche et al studied that the antioxidant activity of glucuronoxylooligosaccharides (UXOS) and arabinoxylooligosaccharides (AXOS) was tested with the 2, 2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) method ( 57 ). The results showed that the antioxidant activity of UXOS was significantly higher than the antioxidant activity of AXOS.…”

Section: Xos Application To Human Healthmentioning

confidence: 99%

Xylo-Oligosaccharides, Preparation and Application to Human and Animal Health: A Review

et al. 2021

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Xylo-oligosaccharides (XOS) are considered as functional oligosaccharides and have great prebiotic potential. XOS are the degraded products of xylan prepared via chemical, physical or enzymatic degradation. They are mainly composed of xylose units linked by β-1, 4 bonds. XOS not only exhibit some specific physicochemical properties such as excellent water solubility and high temperature resistance, but also have a variety of functional biological activities including anti-inflammation, antioxidative, antitumor, antimicrobial properties and so on. Numerous studies have revealed in the recent decades that XOS can be applied to many food and feed products and exert their nutritional benefits. XOS have also been demonstrated to reduce the occurrence of human health-related diseases, improve the growth and resistance to diseases of animals. These effects open a new perspective on XOS potential applications for human consumption and animal production. Herein, this review aims to provide a general overview of preparation methods for XOS, and will also discuss the current application of XOS to human and animal health field.

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“…The resulting hydrolyzed product mixture contained a variety of xylooligosaccharides, which include linear xylooligosaccharides, methylated glucronoxylooligosaccharides, and acetylated oligosaccharides. 45 The enzymeassisted production of xylooligosaccharides and their various applications such as food supplements, 46 antioxidative agents, 47 and in healthcare as antiproliferative agents 48 has increased in recent times. Therefore, the extracted xylan, apart from its role as a substitute for commercial substrates, can also be used for the enzyme-assisted production of xylooligosaccharides for the abovementioned applications.…”

Section: Specific Optical Rotation and Elementalmentioning

confidence: 99%

Acacia Xylan as a Substitute for Commercially Available Xylan and Its Application in the Production of Xylooligosaccharides

et al. 2020

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Over the past two decades, birchwood and beechwood xylans have been used as a popular substrate for the characterization of xylanases. Recently, major companies have discontinued their commercial production. Therefore, there is a need to find an alternative to these substrates. Xylan extraction from Acacia sawdust resulted in 23.5% (w/w) yield. The extracted xylan is composed of xylose and glucuronic acid residues in a molar ratio of 6:1 with a molecular mass of ∼70 kDa. The specific optical rotation analysis of extracted xylan displayed that it is composed of the d-form of xylose and glucuronic acid monomeric sugars. The nuclear magnetic resonance analysis of extracted xylan revealed that the xylan backbone is substituted with 4-O-methyl glucuronic acid at the O2 position. Fourier transform infrared analysis confirmed the absence of lignin contamination in the extracted xylan. Xylanase from Clostridium thermocellum displayed the enzyme activity of 1761 U/mg against extracted xylan, and the corresponding activity against beechwood xylan was 1556 U/mg, which confirmed that the extracted xylan could be used as an alternative substrate for the characterization of xylanases.

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Differential antioxidant activity of glucuronoxylooligosaccharides (UXOS) and arabinoxylooligosaccharides (AXOS) produced by two novel xylanases

Cited by 23 publications

References 49 publications

Xylooligosaccharides from Biomass Lignocellulose: Properties, Sources and Production Methods

Xylooligosaccharides from Biomass Lignocellulose: Properties, Sources and Production Methods

Xylo-Oligosaccharides, Preparation and Application to Human and Animal Health: A Review

Acacia Xylan as a Substitute for Commercially Available Xylan and Its Application in the Production of Xylooligosaccharides

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