Sequestration of edible oil from emulsions using new single and double layered microcapsules from plant spores

Diego‐Taboada, Alberto; Cousson, Priscille; Raynaud, Elodie; Huang, Youkui; Lorch, Mark; Binks, Bernard P.; Queneau, Yves; Boa, Andrew N.; Atkin, Stephen L.; Beckett, Stephen T.; Mackenzie, Grahame

doi:10.1039/c2jm00103a

Cited by 46 publications

(61 citation statements)

References 40 publications

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“…The outer wall of our sample matrix, pollen grains, is sporopollenin, which is a natural polymer composed of hydrophobic aromatic unsaturations and hydrophilic carboxylic acids, ethers, and hydroxyls [33]. Recently, sporopollenin has 12 / 12 been used as a novel sorbent for separation studies [34,35], and the pollen grain also has been used as solid-phase extraction sorbent [36].…”

Section: Solid Supportsmentioning

confidence: 99%

Soxhlet-assisted matrix solid phase dispersion to extract flavonoids from rape (Brassica campestris) bee pollen

Dong

et al. 2015

Journal of Chromatography B

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Section: Solid Supportsmentioning

confidence: 99%

Soxhlet-assisted matrix solid phase dispersion to extract flavonoids from rape (Brassica campestris) bee pollen

Dong

et al. 2015

Journal of Chromatography B

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“…Image (A) shows the origin of natural spores from the vascular plant L. clavatum , wherein these spores exhibit both uniformity of size and microstructures. When these spores are suspended in a macromolecule-containing solution (B) the macromolecules enter the internal spore cavities through natural nanochannels in the spore wall of ≈15-20 nm size, [ 20 ] and image (C) depicts a macromolecule-loaded spore along with the spore's natural cytoplasmic constituents. Image (D-F) represent the three different microencapsulation techniques: passive, compression, and vacuum loading, respectively.…”

Section: Macromolecular Encapsulation and Characterization Of Naturalmentioning

confidence: 99%

“…[ 14 ] Recent studies have demonstrated the use of processed L. clavatum shells for encapsulation, [15][16][17][18][19] however, the production of L. clavatum sporopollenin capsules requires the prolonged processing of natural spores with harsh chemical treatments at elevated temperatures, so as to isolate the sporopollenin exine shell. [20][21][22][23][24] In many applications, this extensive processing may be unnecessary and potential therapeutic benefi ts may be lost. For applications in medicine, cosmetics, and food, enhanced effects may be obtained through the encapsulation of synergistic compounds, [ 25 ] and overall, the use of natural unprocessed spores provides signifi cant benefi ts in terms of processing complexity and costs for a wide range of applications.…”

Section: Introductionmentioning

confidence: 99%

Lycopodium Spores: A Naturally Manufactured, Superrobust Biomaterial for Drug Delivery

Mundargi

Potroz

Park

et al. 2015

Adv Funct Materials

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Herein, the exploration of natural plant‐based “spores” for the encapsulation of macromolecules as a drug delivery platform is reported. Benefits of encapsulation with natural “spores” include highly uniform size distribution and materials encapsulation by relatively economical and simple versatile methods. The natural spores possess unique micromeritic properties and an inner cavity for significant macromolecule loading with retention of therapeutic spore constituents. In addition, these natural spores can be used as advanced materials to encapsulate a wide variety of pharmaceutical drugs, chemicals, cosmetics, and food supplements. Here, for the first time a strategy to utilize natural spores as advanced materials is developed to encapsulate macromolecules by three different microencapsulation techniques including passive, compression, and vacuum loading. The natural spore formulations developed by these techniques are extensively characterized with respect to size uniformity, shape, encapsulation efficiency, and localization of macromolecules in the spores. In vitro release profiles of developed spore formulations in simulated gastric and intestinal fluids have also been studied, and alginate coatings to tune the release profile using vacuum‐loaded spores have been explored. These results provide the basis for further exploration into the encapsulation of a wide range of therapeutic molecules in natural plant spores.

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“…Being the first line of defense, sporopollenin is equipped with various evolutionary-driven resilient properties specifically tailored for protection and endurance to stay viable for extended lengths of time. Due to these attractive properties along with a large and renewable supply, pollen grains have gained the attention of the wider scientific community and are proving to be excellent microcapsules for encapsulation applications31617. In order to address possible issues of biocompatibility and allergenicity, a protein-free microcapsule derivative known as a sporopollenin exine capsule (SEC) was developed through an extraction process that leaves only the hollow sporopollenin exine layer, which itself functions as a microcapsule and can be utilized for encapsulation applications151819202122.…”

mentioning

confidence: 99%

Inflated Sporopollenin Exine Capsules Obtained from Thin-Walled Pollen

Park

Seo

Jackman

et al. 2016

Sci Rep

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Sporopollenin is a physically robust and chemically resilient biopolymer that comprises the outermost layer of pollen walls and is the first line of defense against harsh environmental conditions. The unique physicochemical properties of sporopollenin increasingly motivate the extraction of sporopollenin exine capsules (SECs) from pollen walls as a renewable source of organic microcapsules for encapsulation applications. Despite the wide range of different pollen species with varying sizes and wall thicknesses, faithful extraction of pollen-mimetic SECs has been limited to thick-walled pollen capsules with rigid mechanical properties. There is an unmet need to develop methods for producing SECs from thin-walled pollen capsules which constitute a large fraction of all pollen species and have attractive materials properties such as greater aerosol dispersion. Herein, we report the first successful extraction of inflated SEC microcapsules from a thin-walled pollen species (Zea mays), thereby overcoming traditional challenges with mechanical stability and loss of microstructure. Morphological and compositional characterization of the SECs obtained by the newly developed extraction protocol confirms successful protein removal along with preservation of nanoscale architectural features. Looking forward, there is excellent potential to apply similar strategies across a wide range of unexplored thin-walled pollen species.

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Sequestration of edible oil from emulsions using new single and double layered microcapsules from plant spores

Cited by 46 publications

References 40 publications

Soxhlet-assisted matrix solid phase dispersion to extract flavonoids from rape (Brassica campestris) bee pollen

Soxhlet-assisted matrix solid phase dispersion to extract flavonoids from rape (Brassica campestris) bee pollen

Lycopodium Spores: A Naturally Manufactured, Superrobust Biomaterial for Drug Delivery

Inflated Sporopollenin Exine Capsules Obtained from Thin-Walled Pollen

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