Sunflower oil cake-derived cellulose nanocrystals: Extraction, physico-chemical characteristics and potential application.

08:00 EDT 10th June 2019 | BioPortfolio

Summary of "Sunflower oil cake-derived cellulose nanocrystals: Extraction, physico-chemical characteristics and potential application."

In this work, sunflower oil cake (SOC) was identified as bio-sourced material for cellulose nanocrystals (CNC) production using chemical treatments followed by sulfuric acid hydrolysis. The hydrolysis was performed at 64% acid concentration, a temperature of 50 °C and at two different hydrolysis times, 15 min (CNC) and 30 min (CNC). It was found that CNC exhibited a diameter of 9 ± 3 nm and 5 ± 2 nm, a length of 354 ± 101 nm and 329 ± 98 nm, a crystallinity of 75% and 87%, a surface charge density of ~1.57 and ~1.88 sulfate groups per 100 anhydroglucose units and a zeta potential value of -25.6 and -30.7 mV, for CNC and CNC, respectively. The thermal degradation under nitrogen atmosphere started at 225 °C (CNC), which is relatively higher than the temperature for sulfuric acid hydrolyzed CNC from other sources. Due to a high importance of CNC application in aqueous systems, the rheological behaviour of CNC suspensions at various concentrations was evaluated by the steady shear viscosity measurements and the oscillatory dynamic tests. The results showed that the CNC suspensions exhibited a gel-like behaviour at very low CNC concentrations (0.1-1%) wherein a strong CNC entangled network is formed. Polymer nanoreinforcing capability of the newly produced CNC was also investigated in this study. CNC filled PVA nanocomposite films were produced at various CNC contents (1, 3, 5 and 8 wt%) and their mechanical and transparency properties were investigated, resulting in transparent nanocomposite materials with strong mechanical properties. The study suggested other possibilities to utilize agricultural wastes from SOC for CNC production with potential application as reinforcement in polymer nanocomposites.


Journal Details

This article was published in the following journal.

Name: International journal of biological macromolecules
ISSN: 1879-0003


DeepDyve research library

PubMed Articles [12686 Associated PubMed Articles listed on BioPortfolio]

Optimum alkaline treatment parameters for the extraction of cellulose and production of cellulose nanocrystals from apple pomace.

Cellulose nanocrystals (CNCs) were produced from cellulose extracted from apple pomace (AP). In the alkaline treatment step for cellulose extraction, three variables, the NaOH concentration (6-12%), e...

Cellulose nanocrystals from rice and oat husks and their application in aerogels for food packaging.

This study describes the valorization of rice and oat husks by obtaining cellulose nanocrystals for the production of aerogels for food packaging applications. Commercial cellulose was used as a contr...

Cellulose nanocrystals/fluorinated polyacrylate soap-free emulsion prepared via RAFT-assisted Pickering emulsion polymerization.

Cellulose nanocrystals/fluorinated polyacrylate soap-free emulsion was successfully synthesized via RAFT-assisted Pickering emulsion process using modified cellulose nanocrystals as particle stabilize...

Optimization of Ultrasound-Assisted Extraction of Monoterpene Glycoside from Oil Peony Seed Cake.

Ultrasound-assisted extraction (UAE) of total monoterpene glycosides extract (TMGE) from oil peony seed cakes was investigated. The extraction yield was optimized using response surface methodology (R...

Cellulose nanocrystals derived from Enteromorpha prolifera and their use in developing bionanocomposite films with water-soluble polysaccharides extracted from E. prolifera.

The biomass from Enteromorpha prolifera is used to exploit and transfer this common green bloom algae into new value-added products. In this work, cellulose nanocrystals (CNCs) were first prepared wit...

Clinical Trials [2518 Associated Clinical Trials listed on BioPortfolio]

The Effect of Vegetable Oil on Cognitive Functions of MCI Patients

This study explores the feasibility of applying an intervention using vegetable oils (coconut and sunflower oils) on individuals diagnosed with Mild Cognitive Impairment. Participants will...

Cellulose Sulfate (CS) Gel and HIV in Nigeria

This is a Phase 3, multi-center, randomized, placebo-controlled trial to determine the effectiveness and safety of the 6% cellulose sulfate (CS) vaginal gel for the prevention of HIV infec...

Different Oils For Frying and Endothelial Function

The purpose of this study is to compare the effects of the consumption of different oils (olive oil, sunflower oil, sunflower plus dimethyl-polysiloxane, sunflower plus phenols) previously...

Comparison of Post Tooth Extraction Healing Using Different Xenograft Materials

The purpose of this pilot study is to conduct a interventional prospective clinical trial to evaluate the efficacy of three different xenografts for ridge preservation by comparing the qua...

Evaluation of a New Strategy for the Diagnosis of Peroxisomal Diseases

The principal aim of the study is to avoid the diagnostic wanderings of patients suffering from a peroxisomal disorder. For this purpose, a new diagnostic strategy is proposed. It rests on...

Medical and Biotech [MESH] Definitions

Oil derived from the seeds of SUNFLOWER plant, Helianthus.

Use of various chemical separation and extraction methods, such as SOLID PHASE EXTRACTION; CHROMATOGRAPHY; and SUPERCRITICAL FLUID EXTRACTION; to prepare samples for analytical measurement of components.

A type of ion exchange chromatography using diethylaminoethyl cellulose (DEAE-CELLULOSE) as a positively charged resin. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications.

The selective extraction of deciduous teeth during the stage of mixed dentition in accordance with the shedding and eruption of the teeth. It is done over an extended period to allow autonomous adjustment to relieve crowding of the dental arches during the eruption of the lateral incisors, canines, and premolars, eventually involving the extraction of the first premolar teeth. (Dorland, 28th ed)

Quick Search


DeepDyve research library

Searches Linking to this Article