159 results match your criteria structural flaxseed

Genome-wide identification and expression analysis of the WRKY transcription factor family in flax (Linum usitatissimum L.).

BMC Genomics 2021 May 22;22(1):375. Epub 2021 May 22.

Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China.

Background: Members of the WRKY protein family, one of the largest transcription factor families in plants, are involved in plant growth and development, signal transduction, senescence, and stress resistance. However, little information is available about WRKY transcription factors in flax (Linum usitatissimum L.). Read More

View Article and Full-Text PDF

Encapsulation of lipophilic polyphenols in plant-based nanoemulsions: impact of carrier oil on lipid digestion and curcumin, resveratrol and quercetin bioaccessibility.

Food Funct 2021 Apr;12(8):3420-3432

Biopolymers and Colloids Laboratory, Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA. and Department of Food Science & Bioengineering, Zhejiang Gongshang University, 18 Xuezheng Street, Hangzhou 310018, China.

Lipophilic polyphenol compounds (LPCs) are claimed to exhibit a broad spectrum of biological activities that may improve human health and wellbeing, including antioxidant, anti-inflammatory, and anti-cancer properties. Nanoemulsion-based delivery systems have been developed to encapsulate LPCs so as to increase their food matrix compatibility, physicochemical stability, and bioavailability. LPCs vary in their structural features, including the number and position of phenolic hydroxyl, ketone, and aliphatic groups, which results in different molecular, physicochemical, and gastrointestinal properties. Read More

View Article and Full-Text PDF

Effect of different structural flaxseed lignans on the stability of flaxseed oil-in-water emulsion: An interfacial perspective.

Food Chem 2021 Apr 8;357:129522. Epub 2021 Apr 8.

Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Hubei Key Laboratory of Lipid Chemistry and Nutrition, and Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Wuhan 430062, China. Electronic address:

The influences of the different structural flaxseed lignans on flaxseed oil (FO) emulsions during storage and digestion were investigated, focusing on their interfacial behavior. From perspective of interface, more than 60% of secoisolariciresinol (SECO) and the acidic hydrolysates of flaxseed lignan macromolecule (FLEH) were located on the interface of FO emulsions. It improved the stability of FO emulsions both during storage and digestion by inhibiting of free radical penetration and improving their targeted antioxidative activity. Read More

View Article and Full-Text PDF

Seed coat mucilages: Structural, functional/bioactive properties, and genetic information.

Compr Rev Food Sci Food Saf 2021 May 9;20(3):2534-2559. Epub 2021 Apr 9.

Guelph Research and Development Centre, Agri- and Agri-food Canada, Guelph, Ontario, Canada.

Seed coat mucilages are mainly polysaccharides covering the outer layer of the seeds to facilitate seed hydration and germination, thereby improving seedling emergence and reducing seedling mortality. Four types of polysaccharides are found in mucilages including xylan, pectin, glucomannan, and cellulose. Recently, mucilages from flaxseed, yellow mustard seed, chia seed, and so on, have been used extensively in the areas of food, pharmaceutical, and cosmetics contributing to stability, texture, and appearance. Read More

View Article and Full-Text PDF

Experimental and Numerical Analyses on the Buckling Characteristics of Woven Flax/Epoxy Laminated Composite Plate under Axial Compression.

Polymers (Basel) 2021 Mar 24;13(7). Epub 2021 Mar 24.

Department of Mechanical Engineering and Advanced Institute of Manufacturing for High-Tech Innovations, National Chung Cheng University, Chia-Yi 62102, Taiwan.

The evolution of a sustainable green composite in various loadbearing structural applications tends to reduce pollution, which in turn enhances environmental sustainability. This work is an attempt to promote a sustainable green composite in buckling loadbearing structural applications. In order to use the green composite in various structural applications, the knowledge on its structural stability is a must. Read More

View Article and Full-Text PDF

Development of Toughened Flax Fiber Reinforced Composites. Modification of Poly(lactic acid)/Poly(butylene adipate-co-terephthalate) Blends by Reactive Extrusion Process.

Materials (Basel) 2021 Mar 20;14(6). Epub 2021 Mar 20.

MATRIX Students Club, Polymer Processing Division, Poznan University of Technology, ul. Piotrowo 3, 61-138 Poznan, Poland.

The presented study focuses on the development of flax fiber (FF) reinforced composites prepared with the use of poly(lactic acid)/poly(butylene adipate-co-terephthalate)-PLA/PBAT blend system. This type of modification was aimed to increase impact properties of PLA-based composites, which are usually characterized by high brittleness. The PLA/PBAT blends preparation was carried out using melt blending technique, while part of the samples was prepared by reactive extrusion process with the addition of chain extender (CE) in the form of epoxy-functionalized oligomer. Read More

View Article and Full-Text PDF

Transcriptome analysis and molecular mechanism of linseed (Linum usitatissimum L.) drought tolerance under repeated drought using single-molecule long-read sequencing.

BMC Genomics 2021 Feb 9;22(1):109. Epub 2021 Feb 9.

Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Science, Wuhan, 430062, China.

Background: Oil flax (linseed, Linum usitatissimum L.) is one of the most important oil crops., However, the increases in drought resulting from climate change have dramatically reduces linseed yield and quality, but very little is known about how linseed coordinates the expression of drought resistance gene in response to different level of drought stress (DS) on the genome-wide level. Read More

View Article and Full-Text PDF
February 2021

Hierarchical thermoplastic biocomposites reinforced with flax fibres modified by xyloglucan and cellulose nanocrystals.

Carbohydr Polym 2021 Feb 27;254:117403. Epub 2020 Nov 27.

Polymers Composites and Hybrids (PCH), IMT Mines Ales, Ales, France(1). Electronic address:

This work is focused on the modification of the interphase zone in short flax fibres / polypropylene (PP) composites by a bio-inspired modification of fibres called "nanostructuration" that uses the adsorption of biomass by-products, i.e. cellulose nanocrystals (CNC) and xyloglucan (XG), to create hierarchical flax fibres. Read More

View Article and Full-Text PDF
February 2021

Structural Optimization through Biomimetic-Inspired Material-Specific Application of Plant-Based Natural Fiber-Reinforced Polymer Composites (NFRP) for Future Sustainable Lightweight Architecture.

Polymers (Basel) 2020 Dec 19;12(12). Epub 2020 Dec 19.

Institute of Aircraft Design (IFB), University of Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany.

Under normal conditions, the cross-sections of reinforced concrete in classic skeleton construction systems are often only partially loaded. This contributes to non-sustainable construction solutions due to an excess of material use. Novel cross-disciplinary workflows linking architects, engineers, material scientists and manufacturers could offer alternative means for more sustainable architectural applications with extra lightweight solutions. Read More

View Article and Full-Text PDF
December 2020

Mechanical Properties of Flax Tape-Reinforced Thermoset Composites.

Materials (Basel) 2020 Dec 1;13(23). Epub 2020 Dec 1.

Department of Architecture, University of Cambridge, Cambridge CB2 1PX, UK.

Three thermoset resin systems-bio-epoxy, epoxy, and polyester-with 30 v% flax fiber reinforcement have been studied to identify the optimal fiber-resin combination in a typical composite structure. Tensile, interface and interlaminar shear strength together with flexural and impact damage tolerance were compared in this study. The results revealed that mechanical and interfacial properties were not significantly affected by the different resin systems. Read More

View Article and Full-Text PDF
December 2020

Hybrid Polymer Composites of Bio-Based Bast Fibers with Glass, Carbon and Basalt Fibers for Automotive Applications-A Review.

Molecules 2020 Oct 25;25(21). Epub 2020 Oct 25.

Department of Textile Technology, Faculty of Textiles, Engineering and Business, University of Borås, 50190 Borås, Sweden.

Composites with reinforcements based on bast fibers such as flax, hemp and kenaf offer many advantages such as weight reduction, improved specific impact, flexural, acoustic properties, and balanced performance to cost that can be achieved by properly designing the material composition. Their position is well established, especially in the nonstructural automotive applications. However, in structural applications of composites, their mechanical property profile is not comparable to the dominant reinforcements such as glass and carbon fibers. Read More

View Article and Full-Text PDF
October 2020

PLA Composites Reinforced with Flax and Jute Fibers-A Review of Recent Trends, Processing Parameters and Mechanical Properties.

Polymers (Basel) 2020 Oct 15;12(10). Epub 2020 Oct 15.

Department of Mechanical Engineering, University of Minho, Azurém Campus, 4800-058 Guimarães, Portugal.

Multiple environmental concerns such as garbage generation, accumulation in disposal systems and recyclability are powerful drivers for the use of many biodegradable materials. Due to the new uses and requests of plastic users, the consumption of biopolymers is increasing day by day. Polylactic Acid (PLA) being one of the most promising biopolymers and researched extensively, it is emerging as a substitute for petroleum-based polymers. Read More

View Article and Full-Text PDF
October 2020

Influence of different extraction techniques on recovery, purity, antioxidant activities, and microstructure of flaxseed gum.

J Food Sci 2020 Oct 5;85(10):3168-3182. Epub 2020 Sep 5.

School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.

Four extraction techniques (that is, hot water extraction [HWE], alkaline-acidic extraction [AAE], ultrasound assisted extraction [UAE], and microwave assisted extraction [MAE]) were compared for flaxseed gum extraction and their influence on the yield, purity, structural characterization (monosaccharide composition, molecular weight distribution, and microstructure by transmission electron microscope), and antioxidant activity (in terms of scavenging ability of 2,2-diphenyl-1-picrylhydrazyl [DPPH], 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid [ABTS], and reducing power) was investigated. The HWE achieved higher yield (8.96%) than UAE (7. Read More

View Article and Full-Text PDF
October 2020

Rearrangement of the Cellulose-Enriched Cell Wall in Flax Phloem Fibers over the Course of the Gravitropic Reaction.

Int J Mol Sci 2020 Jul 27;21(15). Epub 2020 Jul 27.

Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky Str., 2/31, 420111 Kazan, Russia.

The plant cell wall is a complex structure consisting of a polysaccharide network. The rearrangements of the cell wall during the various physiological reactions of plants, however, are still not fully characterized. Profound changes in cell wall organization are detected by microscopy in the phloem fibers of flax () during the restoration of the vertical position of the inclined stems. Read More

View Article and Full-Text PDF

Ionic strength and hydrogen bonding effects on whey protein isolate-flaxseed gum coacervate rheology.

Food Sci Nutr 2020 Apr 10;8(4):2102-2111. Epub 2020 Mar 10.

Department of Plant Sciences University of Saskatchewan Saskatoon SK Canada.

Whey protein isolate (WPI) was mixed with anionic flaxseed ( L.) gum (FG), and phase transition during coacervate formation was monitored. Effects of ionic strength and hydrogen bonding on coacervation of WPI-FG system and corresponding rheological properties were investigated. Read More

View Article and Full-Text PDF

Compressive Behavior of Circular Sawdust-Reinforced Ice-Filled Flax FRP Tubular Short Columns.

Materials (Basel) 2020 Feb 20;13(4). Epub 2020 Feb 20.

State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116024, China.

Sawdust-reinforced ice-filled flax fiber-reinforced polymer (FRP) tubular (SIFFT) columns are newly proposed to be used as structural components in cold areas. A SIFFT column is composed of an external flax FRP tube filled with sawdust-reinforced ice. The compressive behavior of circular SIFFT short columns was systematically investigated. Read More

View Article and Full-Text PDF
February 2020

An untargeted liquid chromatography-mass spectrometry-based workflow for the structural characterization of plant polyesters.

Plant J 2020 06 13;102(6):1323-1339. Epub 2020 Feb 13.

Unité de Recherche BIOPI, UMR Transfrontalière BioEcoAgro, Université de Picardie Jules Verne, 80000, Amiens, France.

Cell wall localized heterogeneous polyesters are widespread in land plants. The composition of these polyesters, such as cutin, suberin, or more plant-specific forms such as the flax seed coat lignan macromolecule, can be determined after total hydrolysis of the ester linkages. The main bottleneck in the structural characterization of these macromolecules, however, resides in the determination of the higher order monomer sequences. Read More

View Article and Full-Text PDF

Influence of Water Absorption on the Low Velocity Falling Weight Impact Damage Behaviour of Flax/Glass Reinforced Vinyl Ester Hybrid Composites.

Molecules 2020 Jan 9;25(2). Epub 2020 Jan 9.

Advanced Materials and Manufacturing (AMM) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK.

Due to rigorous new environmental legislations, automotive, marine, aerospace, and construction sectors have redirected their focus into using more recyclable, sustainable, and environmentally friendly lightweight materials driven by strengthening resource efficiency drive. In this study, the influence of moisture absorption on flax and flax/glass hybrid laminates is presented with the aim to investigating their low velocity impact behaviour. Three different types of composite laminates namely, flax fibre reinforced vinyl ester, flax fibre hybridised glass fibre and glass fibre reinforced vinyl ester composites were fabricated using resin infusion technique. Read More

View Article and Full-Text PDF
January 2020

Structural Modifications of a Flaxseed Lignan in Pursuit of Higher Liposolubility: Evaluation of the Antioxidant and Permeability Properties of the Resulting Derivatives.

J Agric Food Chem 2019 Dec 11;67(51):14152-14159. Epub 2019 Dec 11.

Department of Plant Sciences , University of Saskatchewan , 51 Campus Dr. , Saskatoon , Saskatchewan S7N 5A8 , Canada.

While lignans and their biogenetic precursors can have various health benefits, the poor liposolubilities of such phenolic systems have restricted their application as antioxidants in the food industry. The research reported here was aimed at addressing these matters through derivatizing certain forms of such compounds and then assessing their properties as potential nutraceuticals. In particular, crude flaxseed lignan was purified to afford secoisolariciresinol diglucoside (SDG, ) that was then subjected to structural modification. Read More

View Article and Full-Text PDF
December 2019

Structure Selectivity of Alkaline Periodate Oxidation on Lignocellulose for Facile Isolation of Cellulose Nanocrystals.

Angew Chem Int Ed Engl 2020 02 4;59(8):3218-3225. Epub 2019 Dec 4.

Wood Technology and Wood Chemistry, Georg-August-University of Göttingen, 37077, Göttingen, Germany.

Reported here for the first time is the alkaline periodate oxidation of lignocelluloses for the selective isolation of cellulose nanocrystals (CNCs). With the high concentrations as a potassium salt at pH 10, periodate ions predominantly exist as dimeric orthoperiodate ions (H I O ). With reduced oxidizing activity in alkaline solutions, dimeric orthoperiodate ions preferentially oxidized non-ordered cellulose regions. Read More

View Article and Full-Text PDF
February 2020

Dielectric response of hydrated water as a structural component of nanofibrillated cellulose (NFC) from different plant sources.

Carbohydr Polym 2019 Dec 19;225:115217. Epub 2019 Aug 19.

Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky Str. 2/31, 420111, Kazan, Russian Federation; Kazan Federal University, Kremlyovskaya str., 18, 420008, Kazan, Russian Federation. Electronic address:

The current work illuminates the interplay between nanofibrillated cellulose (NFC) films and hydrated water. The NFC films from three sources of technological importance, i.e. Read More

View Article and Full-Text PDF
December 2019

Flaxseed gum: Extraction, bioactive composition, structural characterization, and its potential antioxidant activity.

J Food Biochem 2019 11 1;43(11):e13014. Epub 2019 Sep 1.

Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China.

Flaxseed gum (FSG) is a heteropolysaccharide consist of neutral and acidic components that makes up approximately 8% of seed mass. FSG was extracted from mixture of brown and golden varieties of flaxseeds by hot water extraction method. The molecular weight distribution, monosaccharide analysis, chemical composition, and surface morphology of FSG were scrutinized in the current study to get a better insight regarding this important polysaccharide. Read More

View Article and Full-Text PDF
November 2019

Role of acid treatment combined with the use of urea in forming cellulose hydrogel.

Carbohydr Polym 2019 Nov 5;223:115059. Epub 2019 Jul 5.

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; United Lab of Plant Resources Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address:

Fast-swelling, porous cellulose hydrogels (PCHs) were generated via simple acid treatment of cellulose hydrogel prepared in NaOH/urea medium. Structural characteristics of the PCHs were investigated by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Swelling behavior was assessed by measuring the swelling kinetics in deionized water. Read More

View Article and Full-Text PDF
November 2019

Flax, Basalt, E-Glass FRP and Their Hybrid FRP Strengthened Wood Beams: An Experimental Study.

Polymers (Basel) 2019 Jul 29;11(8). Epub 2019 Jul 29.

Department of Engineering, University of Palermo, Viale delle Scienze, Edificio 6, 90128 Palermo, Italy.

In this study, the structural behavior of small-scale wood beams externally strengthened with various fiber strengthened polymer (FRP) composites (i.e., flax FRP (FFRP), basalt FRP (BFRP), E-glass FRP ("E" stands for electrical resistance, GFRP) and their hybrid FRP composites (HFRP) with different fiber configurations) were investigated. Read More

View Article and Full-Text PDF

Effect of Hygrothermal Aging and Surface Treatment on the Dynamic Mechanical Behavior of Flax Fiber Reinforced Composites.

Materials (Basel) 2019 Jul 25;12(15). Epub 2019 Jul 25.

Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic.

The recent developments of FRP (fiber reinforced polymer) are towards the growth and usage of natural FRP in the field of engineering due to both environmental and economic benefits. Flax fiber is one of the most commonly used natural fibers. One of the critical factors affecting the mechanical behavior of FFRP (flax fiber reinforced polymer) is hygrothermal aging. Read More

View Article and Full-Text PDF

Covalent modification of flaxseed protein isolate by phenolic compounds and the structure and functional properties of the adducts.

Food Chem 2019 Sep 2;293:463-471. Epub 2019 May 2.

School of Science, RMIT University, Melbourne, Vic 3028, Australia. Electronic address:

Covalent modification of flaxseed protein isolate by phenolic compounds including flaxseed polyphenols, ferulic acid, and hydroxytyrosol was studied under alkaline condition and in the presence of oxygen. The structure and function of the adducts was evaluated. The extent of covalent reaction and the physicochemical characteristics of flaxseed protein isolate-phenolic adducts were found to depend on the structure of the phenolic compounds. Read More

View Article and Full-Text PDF
September 2019

Fungal Community Structural and Microbial Functional Pattern Changes After Soil Amendments by Oilseed Meals of and : A Microcosm Study.

Front Microbiol 2019 29;10:537. Epub 2019 Mar 29.

Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, United States.

The meals after oil extraction from many oilseed crops have nutrition and biofumigation potential for land application. Oilseed meal (SM) from the dedicated bioenergy crop were implicated to contain compounds that have antibacterial properties on some soil pathogens. However, little is known about its effect on non-targeted soil microbial community, especially on fungi. Read More

View Article and Full-Text PDF

Development of vanillin/β-cyclodexterin inclusion microcapsules using flax seed gum-rice bran protein complex coacervates.

Int J Biol Macromol 2019 Jun 11;131:60-66. Epub 2019 Mar 11.

Department of Food Processing, Research Institute of Food Science and Technology (RIFST), P.O. Box 91735-147, Mashhad, Iran. Electronic address:

Encapsulation of vanillin through β-cyclodexterin inclusion complex coacervates (β-CD-IC) was developed to achieve higher thermal stability and controlled release of vanillin. The effect of protein to polysaccharide (Pr:Ps) ratio and core (Vanillin/β-CD-IC) to wall (coacervate) ratio on the vanillin encapsulation as well as thermal, microstructural and physical characteristics of microcapsules were investigated. Microcapsules had particle size ranging from 0. Read More

View Article and Full-Text PDF

Effect of Temperature and Water Absorption on Low-Velocity Impact Damage of Composites with Multi-Layer Structured Flax Fiber.

Materials (Basel) 2019 Feb 1;12(3). Epub 2019 Feb 1.

School of Aerospace Engineering and Applied Mechanics, Tongji University, 1239 Siping Road, Shanghai 200092, China.

Temperature and moisture can cause degradation to the impact properties of plant fiber-based composites owing to their complex chemical composition and multi-layer microstructure. This study focused on experimental characterization of the effect of important influencing factors, including manufacturing process temperature, exposure temperature, and water absorption, on the impact damage threshold and damage mechanisms of flax fiber reinforced composites. Firstly, serious reduction on the impact damage threshold and damage resistance was observed, this indicated excessive temperature can cause chemical decomposition and structural damage to flax fiber. Read More

View Article and Full-Text PDF
February 2019