Multi-layer mucilage of Plantago ovata seeds: Rheological differences arise from variations in arabinoxylan side chains

Yu, Long; Yakubov, Gleb E.; Zeng, Wei; Xing, Xiaohui; Stenson, John; Bulone, Vincent; Stokes, Jason R.

doi:10.1016/j.carbpol.2017.02.038

Cited by 100 publications

(112 citation statements)

References 57 publications

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“…There are many techniques available for AXs extraction and different extraction methods will give different yields and range of degrees of branching, molecular weight distribution and tertiary conformation [46], i.e. hot water extraction [21,[47][48][49] and ultrasound-assisted enzymatic extraction [50].…”

Section: Arabinoxylans (Axs)mentioning

confidence: 99%

“…AXs are polysaccharides composed of backbone chains of β-(1-4)-linked d-xylopyranosyl residues to which α-L-arabinofuranose units are linked as side chains in the second and/or third carbon positions, so they are often named pentosans [6,[16][17][18][19]. The degree of branching is an important factor in determining the physiochemical properties of AXs [20,21]. A large proportion of AX cannot be solubilized in water due to the formation of di-ferulic acid bridges and covalent ester bonding between carboxyl groups on individual AX chains [6,22].…”

Section: Introductionmentioning

confidence: 99%

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Health-related effects and improving extractability of cereal arabinoxylans

Fadel

Mahmoud

Ashworth

et al. 2018

International Journal of Biological Macromolecules

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Arabinoxylans (AXs) are major dietary fibers. They are composed of backbone chains of β-(1-4)-linked xylose residues to which α-l-arabinose are linked in the second and/or third carbon positions. Recently, AXs have attracted a great deal of attention because of their biological activities such as their immunomodulatory potential. Extraction of AXs has some difficulties; therefore, various methods have been used to increase the extractability of AXs with varying degrees of success, such as alkaline, enzymatic, mechanical extraction. However, some of these treatments have been reported to be either expensive, such as enzymatic treatments, or produce hazardous wastes and are non-environmentally friendly, such as alkaline treatments. On the other hand, mechanical assisted extraction, especially extrusion cooking, is an innovative pre-treatment that has been used to increase the solubility of AXs. The aim of the current review article is to point out the health-related effects and to discuss the current research on the extraction methods of AXs.

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Section: Arabinoxylans (Axs)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Health-related effects and improving extractability of cereal arabinoxylans

Fadel

Mahmoud

Ashworth

et al. 2018

International Journal of Biological Macromolecules

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“…There are many techniques available for arabinoxylan extraction and different extraction methods give different yields and degrees of branching, molecular weight distribution, and tertiary conformation (Lu, Li, Gu, & Mao, ), that is, hot water extraction (Cyran, Courtin, & Delcour, ; Iqbal, Akbar, Hussain, Saghir, & Sher, ; Izydorczyk, Macri, & MacGregor, ; Yu et al, ) and ultrasound‐assisted enzymatic extraction (Wang, Sun, Liu, & Zhang, ).…”

Section: Arabinoxylansmentioning

confidence: 99%

Modulation of innate and adaptive immune responses by arabinoxylans

Fadel

Plunkett

et al. 2017

J Food Biochem

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Humans are exposed to harmful pathogens and a wide range of noxious substances every day.The immune system reacts to, and destroys, these pathogens and harmful substances. The immune system is composed of innate and adaptive immunity, which liaise to protect the host and maintain health. Foods, especially cereals, have been reported to modulate the immune response.Arabinoxylans are nonstarch polysaccharides that have been shown to possess immunemodulatory activities. This review article discusses the fundamentals of the immune system and provides an overview of the immunomodulatory potential of arabinoxylans in conjunction with their structural characteristics and proposed similarities with lipopolysaccharides. Practical applicationsUnderstanding how the immune system works is of vital importance to prevent unnecessary or excessive inflammatory responses. Consumption of arabinoxylans has been shown to possess immunomodulatory potential. However, their mechanism of action has not been elucidated.Arabinoxylans share some similarities with lipopolysaccharides (LPS), a molecule that induces substantial and sometimes excessive immune responses such as fever following infection by pathogens. Thus, we propose that arabinoxylans might possibly act on the same receptor as LPS.Competition between dietary-derived arabinoxylans and LPS at a shared receptor would then have the potential to inhibit or attenuate excessive LPS-induced inflammatory responses that are typical of infection/fever. In the absence of infection and consequently no competition at the LPS receptor, consumption of dietary arabinoxylans may protect against the risk of infection by moderately activating the receptor and heightening natural (background) levels of immunity.

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“…Psyllium is also recognized as ispaghula and isabgol widely used as a laxative. Isabgol comes from the Persian words as band ghoul, meaning "horse flower" which is descriptive of the shape of the seed [1][2][3][4][5][6]. The plant of isabgol is generally 10 to 18 inches in height, with numerous small and white flowers are shown in (Figures 1 and 2).…”

Section: Introductionmentioning

confidence: 99%

Psyllium Mucilage and Its Use in Pharmaceutical Field: An Overview

Kumar¹,

Pandey²,

Kumar³

et al. 2017

Curr Synthetic Sys Biol

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Plantago psyllium mucilage or Plantago psyllium ovate is a food grade natural polysaccharide obtained from Plantago psyllium and its mucilage is calm of natural arabinoxylan (arabinose 22.6% and xylose 74.6%). Psyllium mucilage is extracted from psyllium husk. Graft copolymerization is one of the best methods for modifying psyllium, which impart certain functional properties to psyllium without destroying its basic properties. The grafting is initiated through the formation of the free radical centers on the polymer backbone. Psyllium has wide application in many health problems, particularly cholesterol control, colon cancer prevention, high sugar levels in blood and widely used as a laxative.

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Multi-layer mucilage of Plantago ovata seeds: Rheological differences arise from variations in arabinoxylan side chains

Cited by 100 publications

References 57 publications

Health-related effects and improving extractability of cereal arabinoxylans

Health-related effects and improving extractability of cereal arabinoxylans

Modulation of innate and adaptive immune responses by arabinoxylans

Psyllium Mucilage and Its Use in Pharmaceutical Field: An Overview

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