Stabilization of the oleic acid-water emulsion with various kraft lignins

Афанасьев, Н. И.; Selyanina, S. B.; Селиванова, Н. В.

doi:10.1134/s1070427208100273

Cited by 7 publications

(3 citation statements)

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“…It is widely considered to be a hydrophobic molecule, however it has also been shown to have hydrophilic, hydrophobic, and amphiphilic character depending on botanical origin and extraction methods [ 15 , 16 ]. Kraft lignins [ 17 , 18 ], lignosulfonates [ 18 ], lignin obtained from enzymatic hydrolysis [ 19 ] and lignin microparticles [ 20 , 21 ] have been shown to stabilise o/w emulsions. Several methods have been used to create lignin microparticles; one such method uses aqueous ethanol to extract lignin from shrub willow and an anti-solvent precipitation protocol to prepare the microparticles.…”

Section: Introductionmentioning

confidence: 99%

Pickering Particles Prepared from Food Waste

2016

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In this paper, we demonstrate the functionality and functionalisation of waste particles as an emulsifier for oil-in-water (o/w) and water-in-oil (w/o) emulsions. Ground coffee waste was chosen as a candidate waste material due to its naturally high content of lignin, a chemical component imparting emulsifying ability. The waste coffee particles readily stabilised o/w emulsions and following hydrothermal treatment adapted from the bioenergy field they also stabilised w/o emulsions. The hydrothermal treatment relocated the lignin component of the cell walls within the coffee particles onto the particle surface thereby increasing the surface hydrophobicity of the particles as demonstrated by an emulsion assay. Emulsion droplet sizes were comparable to those found in processed foods in the case of hydrophilic waste coffee particles stabilizing o/w emulsions. These emulsions were stable against coalescence for at least 12 weeks, flocculated but stable against coalescence in shear and stable to pasteurisation conditions (10 min at 80 °C). Emulsion droplet size was also insensitive to pH of the aqueous phase during preparation (pH 3–pH 9). Stable against coalescence, the water droplets in w/o emulsions prepared with hydrothermally treated waste coffee particles were considerably larger and microscopic examination showed evidence of arrested coalescence indicative of particle jamming at the surface of the emulsion droplets. Refinement of the hydrothermal treatment and broadening out to other lignin-rich plant or plant based food waste material are promising routes to bring closer the development of commercially relevant lignin based food Pickering particles applicable to emulsion based processed foods ranging from fat continuous spreads and fillings to salad dressings.

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Section: Introductionmentioning

confidence: 99%

Pickering Particles Prepared from Food Waste

2016

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“…Sulfate lignins are able to stabilize tall oil-water emulsions [94]. Calcium lignosulfonate is a specific dispersing agent for preparation of Portland cementwater suspensions.…”

Section: Other Applications Of Ligninmentioning

confidence: 99%

Lignin utilization options and methods

Khitrin¹,

Fuks

Khitrin

et al. 2012

Russ J Gen Chem

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“…Lignin exhibits an amphiphilic nature due to its hydrophobic aromatic skeleton and hydrophilic groups. As a result, lignin can be adsorbed at air–liquid and liquid–liquid interfaces. , At present, the utilization of lignin nanoparticles as emulsifiers for Pickering emulsions is observed. For instance, multilayer composite microcapsules were prepared by using lignin nanoparticle-stabilized oil-in-water (O/W) Pickering emulsions as templates, and these microcapsules were used to load isophorone diisocyanate for the preparation of a self-healing coating .…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Optimization of Pickering Emulsion Stabilized by Lignin Nanoparticles for Curcumin Encapsulation

Li,

Yang,

Wang

et al. 2024

ACS Omega

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To develop reversible pH-responsive emulsifiers of natural origin, alkali lignin (AL) was used to develop oil-in-water Pickering emulsions. AL was first modified to synthesize quaternized alkali lignin (QAL), which displayed pH-responsive properties and demonstrated solubility in both acidic and alkaline solutions. In contrast, QAL exhibited insolubility and formed particles in neutral solutions, thereby making it a suitable candidate for utilization as an emulsifier in doubly pH-responsive Pickering emulsions. At pH 5−9, the emulsions were stable. Above or below this pH range, the system demulsifies, resulting in a reversible Pickering emulsifier with two pH-controlled transitions. On the basis of this pHdependent behavior, lignin-based Pickering emulsions (LPE) could be subjected to several cycles of emulsification−demulsification by alternating the pH of the aqueous phase between basic and acidic, while the droplet size and storage stability were maintained. Curcumin was used as a drug model to study the loading/release behavior of LPE, finding that 50.08% of curcumin could be encapsulated in LPE. The in vitro release of curcumin was pH-dependent. In addition, LPE exhibited an outstanding protective effect against the ultraviolet-induced degradation of curcumin.

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Stabilization of the oleic acid-water emulsion with various kraft lignins

Cited by 7 publications

References 1 publication

Pickering Particles Prepared from Food Waste

Pickering Particles Prepared from Food Waste

Lignin utilization options and methods

Fabrication and Optimization of Pickering Emulsion Stabilized by Lignin Nanoparticles for Curcumin Encapsulation

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