Synthesis of triangular lignin photonic crystal nanoparticles: Investigating solvent effects and dialysis optimization.

Synthesizing nanoparticles with controlled shapes has been highly desirable for nanoparticle assembly research but is fraught with challenges. While the production of traditional spherical lignin nanoparticles (LNPs) has evolved as a solution to address the highly changeable and complex chemical structure of lignin, more complicated geometries with photonic nature are still needed for optical applications. This work represents the first study to fabricate a novel triangular lignin photonic crystal nanoparticle via a green technique that combines solvent shifting and acid precipitation.

Development of shelf life-extending packaging for vitamin C syrup based on high-density polyethylene and extracted lignin argan shells.

Biobased packaging is an essential parameter in the pharmaceutical industry. In the present work, bio-composites consisting of high-density polyethylene (HDPE) as a matrix and lignin recovered from argan nut shells as filler were developed to investigate their potential use as packaging materials for vitamin C drugs. The lignin was extracted via alkali and klason processes, and the effects of the extraction method as well as the lignin content on the thermal, morphological, mechanical, and rheological properties of the produced composites, as well as their application for vitamin C packaging, were investigated.

Stable smart packaging betalain-based from red prickly pear covalently linked into cellulose/alginate blend films.

Smart materials based on biomaterials have been shown growing interest by researchers. This paper investigated pH-indicator film with less leaching containing betalain molecule extracted from red prickly pear fixed in the cellulose-alginate blend as a matrix. Herein, the film was manufactured from a blend containing covalently bounded cellulose with betalain via the creation of a Fischer esterification (FE) to solve the leaching problem of dyes in contact with food.

Intelligent food packaging film containing lignin and cellulose nanocrystals for shelf life extension of food.

The UV-protection films based on renewable materials extracted from natural sources are being one of the most interesting targets for the packaging industry. In this paper, the UV-protection films were produced based on modified lignin and cellulose nanocrystals, both were extracted from the Argania nutshell. The lignin was extracted via the alkylation process followed by chemical modification using epichlorohydrin.

Biocomposites based on Argan nut shell and a polymer matrix: Effect of filler content and coupling agent.

This study aimed at developing a biocomposite using polypropylene (PP) as the matrix and Argan nut shell (ANS) as reinforcement. Also, styrene-(ethylene-butene)-styrene triblock copolymer grafted with maleic anhydride (SEBS-g-MA) was used as a coupling agent. The samples were prepared by using extrusion compounding followed by injection molding to determine the effect of filler and coupling agent content on the morphological, thermal, mechanical, and hygroscopic properties of the biocomposites.