AI Article Synopsis
- Chemical modification of dietary fiber from whole grain barley resulted in cross-linked (CL), carboxymethyl (CM), and hydroxypropyl (HP) forms, impacting their properties and digestibility.
- The total dietary fiber content increased in CL and HP forms due to higher insoluble fiber, while carboxymethylation improved soluble fiber but reduced overall fiber levels.
- Modified fibers showed enhanced hydration properties and when mixed with wheat starch, particularly CL and HP forms, they decreased the starch's digestibility, suggesting potential for use in fiber-rich foods.
Article Abstract
Chemical modification of dietary fiber (DF), extracted from whole grain barley, was carried out to obtain cross-linked (CL) DF, carboxymethyl (CM) DF, and hydroxypropyl (HP) DF. The DF components, physicochemical properties, and subsequent influence on the in vitro digestibility of wheat starch gels were comparatively investigated. The redistribution of fiber components from chemically modified DF was observed. An increase in the total DF (TDF) content of CL- and HP-DF was observed, which was mainly due to an increase of insoluble DF. Carboxymethylation led to an appreciable increase of soluble DF (1.17-6.20%) but TDF contents slightly decreased. Chemical modification of barley DF led to increases in arabinose (7.1-11.5%) and xylose (10.7-17.5%), but glucose contents decreased (67.4-79.9%). The treatments, especially carboxymethylation, effectively (P<0.05) increased hydration properties (e.g. water solubility, swelling power, and water absorption index). Substitution of 5% wheat starch with CL-, and HP-DF led to decreased in vitro digestibility in comparison to the control starch. Our results suggest that chemical modification improve the DF characteristics of barley and to exploit its potential application as a functional ingredient in fiber-rich products.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2013.06.024 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metabolic engineering of Priestia megaterium for 2'-fucosyllactose production.
Microb Cell Fact
January 2025
Department of Chemical & Biological Engineering, Korea University, Seoul, 136-763, Korea.
Background: 2'-Fucosyllactose (2'-FL) is a predominant human milk oligosaccharide that significantly enhances infant nutrition and immune health. This study addresses the need for a safe and economical production of 2'-FL by employing Generally Recognized As Safe (GRAS) microbial strain, Priestia megaterium ATCC 14581. This strain was chosen for its robust growth and established safety profile and attributing suitable for industrial-scale production.
View Article and Find Full Text PDFAmino acid modified copper-based metal organic polyhedral with higher peroxidase activity for potassium guaiacol sulfonate detection.
Sci Rep
January 2025
School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan University, No. 2 North Cuihu Road, Kunming, China.
It has been reported some nanozymes could be used as a substitute for natural enzyme to detect HO to some extent. However, the low catalytic effect of these materials limited their further application fields. Hence, to increase the catalytic activity of nanozymes was a hot research topic and many methods have been reported.
View Article and Find Full Text PDFReductive sulfinylation by nucleophilic chain isomerization of sulfonylpyridinium.
Nat Commun
January 2025
Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, 210023, Nanjing, China.
Sulfur-containing units are fundamental components widely found in bioactive compounds, prompting notable efforts toward developing synthetic methodologies for incorporating sulfur functionality into organic precursors. The synthesis of sulfinate esters and sulfinamides has garnered significant interest owing to their immense potential for applications, especially in drug development. However, most existing synthetic protocols suffer from some limitations.
View Article and Find Full Text PDFPalladium-Catalyzed Solvent-Controlled Divergent C2/C5 Site-Selective Alkynylation of Pyrrole Derivatives.
J Org Chem
January 2025
Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
Among the known aromatic -heterocycles, pyrroles are significant and versatile privileged components in pharmacologically relevant molecules. Herein, we demonstrate a protocol for the selective construction of alkynylated pyrroles in a diversity-oriented fashion through divergent C2/C5 site-selective alkynylation of pyrrole derivatives by employing a palladium catalyst with two different solvent systems. In the presence of 1,4-dioxane, the C2-alkynylation process via chelation-assisted palladation is favored.
View Article and Find Full Text PDFModulating Charge Transfer Kinetics along Poly Adenine: Chemical Modifications, Temperature, and Conformational Effects.
J Chem Theory Comput
January 2025
Department of Chemistry, University of Rome, Sapienza, P.le A. Moro 5, 00185 Rome, Italy.
The charge transfer (CT) reactions in nucleic acids are crucial for genome damage and repair and nanoelectronics using DNA as a molecular conductor. Previous experimental and theoretical works underlined the significance of nucleic acid structural dynamics on CT kinetics, requiring models that incorporate the dynamics of the nucleic acid, solvents, and counterions. Here, we investigated hole transfer kinetics in poly adenine single and double strands at various temperatures and the rate enhancement due to adenine-to-7-deazaadenine mutation by means of a QM/MM approach.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!