A novel combination of methods for the extraction and purification of arabinoxylan from byproducts of the cereal industry

Anderson, Cassie; Şimşek, Şenay

doi:10.1007/s11694-018-00020-4

Cited by 15 publications

(12 citation statements)

References 21 publications

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“…4. According to the literature, all anomeric 1 H‐NMR signals of AX are found in the spectral region of 4.4–5.6 ppm, with arabinose protons at 5.6–5.0 ppm and xylose protons at 4.7–4.4 ppm 29,38,39 . The prominent peak in the MBAX spectrum at 5.41 ppm (A) indicates the presence of α‐ l ‐Araf (1→3)‐linkage to monosubstituted β‐ d ‐Xylp residue 40,41 .…”

Section: Resultsmentioning

confidence: 91%

Fine structural features and antioxidant capacity of ferulated arabinoxylans extracted from nixtamalized maize bran

et al. 2023

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BACKGROUND The nixtamalization process improves the nutritional and technological properties of maize. This process generates nixtamalized maize bran as a by‐product, which is a source of arabinoxylans (AX). AX are polysaccharides constituted of a xylose backbone with mono‐ or di‐arabinose substitutions, which can be ester‐linked to ferulic acid (FA). The present study investigated the fine structural features and antioxidant capacity (AC) of nixtamalized maize bran arabinoxylans (MBAX) to comprehend the structure–radical scavenging capacity relationship in this polysaccharide deeply. RESULTS MBAX presented a molecular weight, intrinsic viscosity, and hydrodynamic radius of 674 kDa, 1.8 dL g−1, and 24.6 nm, respectively. The arabinose‐to‐xylose ratio (A/X) and FA content were 0.74 and 0.25 g kg−1 polysaccharide, respectively. MBAX contained dimers (di‐FA) and trimer (tri‐FA) of FA (0.14 and 0.07 g kg−1 polysaccharide, respectively). The main di‐FA isomer was the 8–5′ structure (80%). Fourier transform infrared spectroscopy confirmed MBAX molecular identity, and the second derivate of the spectral data revealed a band at 958 cm−1 related to the presence of arabinose disubstitution. 1H‐Nuclear magnetic resonance spectroscopy showed mono‐ and di‐arabinose substitution in the xylan backbone with more monosubstituted residues. MBAX registered an AC of 25 and 20 μmol Trolox equivalents g−1 polysaccharide despite a low FA content, using ABTS (2,2′‐azino‐bis‐3‐ethylbenzthiazoline‐6‐sulfonic acid) and DPPH (1,1‐diphenyl‐2‐picrylhydrazyl) methods, respectively. CONCLUSION AC in MBAX could be related to the high A/X ratio (mainly monosubstitution) and the high 8–5′ di‐FA proportion in this polysaccharide. © 2023 Society of Chemical Industry.

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Section: Resultsmentioning

confidence: 91%

Fine structural features and antioxidant capacity of ferulated arabinoxylans extracted from nixtamalized maize bran

et al. 2023

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“…The film preparation method was adapted from Anderson & Simsek, (2019) [21]. The purified solution, with an initial soluble solids content of 0.2% (w/w solution), was concentrated to a final solids content of 1.3% (w/w solution) in a Buchi Rotavapor R-200 system (Marshall scientific, Hampton, NH, USA), operated under a controlled pressure of 17 mbar and a bath temperature of 40 • C. This solution had a content of 6% (w/w dry basis) of ferulic acid equivalents.…”

Section: Films Preparationmentioning

confidence: 99%

“…An alternative to avoid membrane fouling is dialysis, a process operating under very mild operating conditions. Dialysis was carried out to purify the arabinoxylan from maize bran, where the small contaminants were removed through the membrane by diffusion at 23 • C for 3 days [21].…”

Section: Introductionmentioning

confidence: 99%

Purification of Arabinoxylans from Corn Fiber and Preparation of Bioactive Films for Food Packaging

et al. 2020

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Corn fiber, a by-product of the starch industry, is presently incorporated in animal feed. However, it has arabinoxylans as added-value components (besides ferulic acid) that should be valorized. In this work, the raw material, a fraction enriched in arabinoxylans from corn fiber, previously produced by alkaline extraction from corn fiber and pre-concentrated by ultrafiltration, was further purified. The use of ultrafiltration operated in diafiltration mode (dia-ultrafiltration) was evaluated for the purification of the arabinoxylans fraction. The objective was to maximize the removal of the small contaminants from the fraction and to maximize the permeability and/or the permeate flux, by selecting the relevant operating conditions involved in this process. The removal of contaminants (%) was estimated when their apparent rejection stabilized. Edible films were produced, from the resultant purified arabinoxylans fraction, using glycerol as plasticizer (30% dry basis). Additionally, films with the incorporation of ferulic acid were developed, in order to obtain barriers with antioxidant activity. The films were characterized in terms of mechanical properties, antioxidant activity and permeability to water vapor. The films prepared presented a good potential to be used as packaging for food products with low water content.

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“…Purification methods are important to remove contaminants and obtain an extract rich in arabinoxylans. Some reported purification methods for arabinoxylan extracts include membrane processes, such as diafiltration in a hollow-fiber membrane [ 15 ] or dialysis, to remove low-molecular-weight contaminants [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Decolorization of a Corn Fiber Arabinoxylan Extract and Formulation of Biodegradable Films for Food Packaging

et al. 2021

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Corn fiber from the corn starch industry is a by-product produced in large quantity that is mainly used in animal feed formulations, though it is still rich in valuable components, such as arabinoxylans, with proven film-forming ability. During arabinoxylans’ recovery under alkaline extraction, a dark-colored biopolymer fraction is obtained. In this work, a purified arabinoxylan extract from corn fiber with an intense brownish color was decolorized using hydrogen peroxide as the decolorizing agent. Biodegradable films prepared by casting the decolorized extract exhibited a light-yellow color, considered more appealing, envisaging their application in food packaging. Films were prepared with glycerol as plasticizer and citric acid as cross-linker. Although the cross-linking reaction was not effective, films presented antioxidant activity, a water vapor permeability similar to that of non-decolorized films, and other polysaccharides’ and mechanical properties that enable their application as packaging materials of low-water-content food products.

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A novel combination of methods for the extraction and purification of arabinoxylan from byproducts of the cereal industry

Cited by 15 publications

References 21 publications

Fine structural features and antioxidant capacity of ferulated arabinoxylans extracted from nixtamalized maize bran

Fine structural features and antioxidant capacity of ferulated arabinoxylans extracted from nixtamalized maize bran

Purification of Arabinoxylans from Corn Fiber and Preparation of Bioactive Films for Food Packaging

Decolorization of a Corn Fiber Arabinoxylan Extract and Formulation of Biodegradable Films for Food Packaging

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