Encapsulation process by utilizing yeast cells as carriers

Active ingredientYeastCarrierPretreatment (for carriers)Encapsulation methodReferences
AnthocyaninsSaccharomyces cerevisiaeYeast cells-Washing (water)
-Heat treatment
Direct mixing[49]
AnthocyaninsSaccharomyces cerevisiae, Saccharomyces pastorianus, Saccharomyces bayanusYeast cellsPlasmolysis (NaCl)Direct mixing (water)[32]
Ascorbic acidSaccharomyces pastorianusHydrolyzed cells-Heat treatment
-Enzymatic hydrolysis (proteases)
Spray drying (with maltodextrin and Maillard reaction products)[33]
BerberineSaccharomyces cerevisiaeYeast cellsNDEmulsification (berberine, cells, water)[23]
Bovine serum albuminSaccharomyces cerevisiaeYeast cellsAutolysis (NaCl, HCl, NaOH, CTAB, SDS, Tween-80, DTT, and EDTA)-Emulsification (bovine serum albumin, cell, water)
-Outer-layer chitosan coating
[50]
Black cumin seed oilSaccharomyces cerevisiaeYeast cellsPlasmolysis (NaCl)Emulsification (deionized water, Tween 80)[66]
CarvacrolSaccharomyces cerevisiaeYeast cell wallWashing (water)Direct mixing (water)[28]
CurcuminSaccharomyces cerevisiaeYeast cellsNDOsmoporation [water-glycerol solutions (iso-, 1.4 MPa) and hyper-osmotic (30.0 MPa)][47]
CurcuminBrewer’s yeastYeast cells-Washing (water)
-Chemical treatment (NaOH)
pH-driven[55]
CurcuminSaccharomyces cerevisiaeYeast cells and cell wall particlesChemical treatment:
-Ethanol for yeast cell
-NaOH, HCl, acetone, isopropanol for cell wall particles
Vacuum infusion[53]
Intact yeast cells and yeast cell wall particles-Washing (water) for intact yeast
-Chemical treatment (NaOH, HCl, isopropanol, acetone)
-Vacuum infusion
-Emulsification
[65]
Curcumin, fisetinSaccharomyces cerevisiaeIntact yeast cells and cell wall particles-Washing (ethanol and ultrapure water) for intact yeast
-Chemical treatment: NaOH, HCl, isopropanol, and acetone for yeast cell wall particles
-Ethanol concentration
-Vacuum infusion
-Vacuum pressure
[38]
D-limonene, ethyl hexanoateSaccharomyces cerevisiaeβ-Glucans extracted from drum-dried yeast cellsNDSpray drying[36, 45]
Essential oil (Mentha pulegium)Saccharomyces cerevisiaeYeast cellsPlasmolysis (NaCl)Emulsification (oil, cells, water)[59]
Essential oil (Oregano)Saccharomyces cerevisiaeYeast cells-Chemical treatment: autolysis (NaOH)
-Pulsed electric field
-High-pressure homogenization
Emulsification (ethanol, oil, cells, deionized water)[11]
Essential oil (Zataria multiflora Boiss)Saccharomyces cerevisiaeYeast cellsNDEmulsification (oil, cells, distilled water)[30]
FisetinSaccharomyces cerevisiaeYeast cellsOsmoporation (water-glycerol solution, 1.4 MPa)Osmoporation (water-glycerol solution, 1.4 MPa)[63]
Fish oilSaccharomyces cerevisiaeCell walls-Autolysis (ethyl acetate)
-Enzymatic hydrolysis (β-glucanase, chitinase, protease)
Emulsification (ethanol, oil, cells, deionized water)[25]
Flavors (Carboxylic acids, ethyl esters, lactones, alcohols, and ketones)Yarrowia lipolyticaYeast cells-Heat treatment
-β-mercaptoethanol treatment
-Enzymatic hydrolysis (protease)
Direct mixing (water)[35]
Flaxseed oilSaccharomyces cerevisiaeYeast cells or β-glucanPlasmolysis (NaCl)Emulsification (Tween 80, oil, cells, deionized water)[43]
Gallic acidSaccharomyces cerevisiaeYeast cellsPlasmolysis (NaCl)Emulsification (ethanol, acid, cells distilled water)[31]
Ibuprofen and curcuminSaccharomyces cerevisiaeYeast glucan particlesChemical treatment (NaOH)Spray drying[67]
Krill oilYeastYeast cellsPlasmolysis (NaCl)Emulsification (Tween 80, oil, cells, deionized water)[24]
Lactobacillus acidophilus and Bifidobacterium bifidumSaccharomyces cerevisiaeYeast cellsND-Emulsification (sodium alginate, probiotics, cells, Span 80, CaCl2, canola oil)
-Triple layer (alginate-alginate-cell wall)
[42]
LimoneneSaccharomyces cerevisiaeIntact yeast cellsNDConcentrated powder form-high-pressure spraying emulsion (Tween 80, limonene, cell, distilled water)[44]
Phenolic compoundsSaccharomyces cerevisiaeBrewery waste yeastsWashing (distilled water)Spray drying[48]
TaxifolinSaccharomyces cerevisiaeYeast cellsMicro-structuring (low-frequency ultrasonic cavitation)Direct mixing[29]
Vitamin D3Saccharomyces cerevisiaeYeast cellsPlasmolysis (NaCl)-Spray drying
-Freeze drying
[41]
β-CaroteneYarrowia lypoliticaYeast cellsND-Ultrasound
-Solvent (chloroform, ethanol, acetone, or hexane)
[34]

CTAB: cetyltrimethylammonium bromide; SDS: sodium dodecyl sulfate; DTT: dithiothreitol; EDTA: ethylene diamine tetra acetic acid; ND: not detected or analyzed