Exploring the antibacterial potential of magnetite/Quince seed mucilage/Ag nanocomposite: Synthesis, characterization, and activity assessment

Stimuli-responsive glucuronoxylan polysaccharide from quince seeds for biomedical, food packaging, and environmental applications

Mucilage is a gelatinous mixture of polysaccharides secreted from the seed coat and/or pericarp of many plant seeds when soaked in water. Mucilage affected seed germination while maintaining hydration levels during scarcity. Cydonia oblonga (quince) seeds are natural hydrocolloids extruding biocompatible mucilage mainly composed of polysaccharides. Quince seed mucilage (QSM) has fascinated researchers due to its applications in the food and pharmaceutical industries. On a commercial scale, QSM preserved the sensory and physiochemical properties of various products such as yogurt, desserts, cakes, and burgers. QSM is responsive to salts, pH, and solvents and is mainly investigated as edible coatings in the food industry. In tablet formulations, modified and unmodified QSM as a binder sustained the release of various drugs such as cefixime, capecitabine, diclofenac sodium, theophylline, levosulpiride, diphenhydramine, metoprolol tartrate, and acyclovir sodium. QSM acted as a reducing and capping agent to prepare nanoparticles for good antimicrobial resistance, photocatalytic characteristics, and wound-healing potential. The present review discussed the extraction optimization, chemical composition, stimuli-responsiveness, and viscoelastic properties of mucilage. The potential of mucilage in edible films, tissue engineering, and water purification will also be discussed.

Structure, chemical modification, and functional applications of mucilage from Mimosa pudica seeds - A review

Mimosa pudica (MP) is an ornamental plant due to seismonastic movements that close leaves and fall petioles in response to touch, wind, light, heat, cold, and vibration. The seeds of MP secrete smart, biocompatible, and non-toxic mucilage that has captivated researchers due to its widespread use in various fields such as pharmaceuticals and biotechnology. The mucilage is responsive to pH, salt solutions, and solvents and acts as a binder in tablet formulations for targeted drug delivery. The mucilage is chemically modifiable via acetylation, succinylation, and graft polymerization. Chemically modified MP mucilage appeared supersorbent for heavy metal ion uptake. Nanoparticles synthesized using mucilage as a reducing and capping agent displayed significant antimicrobial and wound-healing potential. Crosslinking of mucilage using citric acid as a crosslinking agent offers a sustained release of drugs. The present review is aimed to discuss extraction optimization, structure, modification, and the stimuli-responsive nature of mucilage. The review article will cover the potential of mucilage as emulsifying, suspending, bio-adhesive, gelling, and thickening agent. The role of mucilage as a capping and reducing agent for nanoparticles will also be discussed.

In vitro release modeling of beta-carotene from Bene oleosome and electrosprayed Quince seed hydrocolloids loaded with oleosomes containing beta-carotene

This research aimed to extract oleosome from the Bene kernel as a carrier of beta-carotene (3, 5, and 10 % w/w) and then use oleosomes in the Quince seed gum (QSG) electrosprayed nanoparticles for the sustained release of beta-carotene in food simulant. Oleosomes loaded with 5 % w/w beta-carotene had the highest encapsulation efficiency (94.53 % ± 1.23 %) and were used at 1, 3, and 5 % w/w in the QSG electrosprayed nanoparticles. Electrospray feed solutions containing 5 % oleosomes loaded with beta-carotene had the highest zeta potential (-34.45 ± 0.58 mV) and the lowest surface tension (23.47 ± 1.10 mN/m). FESEM images showed that with the increase of oleosomes up to 3 % w/w, the average size of the electrosprayed particles decreases. The Fourier transform infrared (FTIR) test proved the presence of protein in the oleosomes and their successful extraction from Bene seeds. Differential scanning calorimetry (DSC) and FTIR proved the successful entrapment of beta-carotene in the oleosomes structure and the successful placement of oleosomes containing beta-carotene in the electrosprayed nanoparticles. The predominant driving force involving the release of beta-carotene from the designed structures in food simulants was the Fickian release mechanism. The Peleg model was introduced as the best model describing the beta-carotene release.