Encapsulation efficiency and thermal stability of norbixin microencapsulated by spray-drying using different combinations of wall materials

The potential of sodium alginate (ALG) and gum arabic (GA) as wall polymers for L-ascorbic acid (AA) encapsulation as a tool for their preservation against the thermo-oxidative degradation was investigated. The influence of such polymers used as wall material on the AA-content, size, encapsulation efficiency, encapsulation yield and thermo-oxidative stability were evaluated. The AA-microparticles were obtained using the spray-drying technique. An experimental Taguchi design was employed to assess the influence of the variables in the encapsulation process. The microparticles morphology and size distribution were characterized by scanning electron microscopy and laser diffraction. The thermal stability of AA microparticles was studied by differential scanning calorimetry and thermogravimetry analysis. This work points out the viability to encapsulate AA using GA and ALG through a spray-drying process. In general, a product yield ranging from 35.1% to 83.2% and an encapsulation efficiency above 90% were reached. Spherical microparticles with a smooth surface were obtained with a mean diameter around 6 μm and 9 μm for the those prepared with GA and ALG, respectively. The thermo-oxidative analysis showed that both polymers allow maintaining AA stable up to 188 °C, which is higher than the traditional processing temperature used in the fish feed industry.

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Spray-Drying Performance and Thermal Stability of L-Ascorbic Acid Microencapsulated with Sodium Alginate and Gum Arabic

10.20944/preprints201906.0197.v1 ◽

2019 ◽

Author(s):

Pabla Barra ◽

Katherine Márquez ◽

Oscar Gil-Castell ◽

Javiera Mujica ◽

Amparo Ribes-Greus ◽

...

Keyword(s):

Thermal Stability ◽

Ascorbic Acid ◽

Sodium Alginate ◽

Spray Drying ◽

Encapsulation Efficiency ◽

Gum Arabic ◽

Wall Material ◽

Processing Temperature ◽

Fish Feed ◽

Thermal Stability Of

The potential of sodium alginate (ALG) and gum arabic (GA) as wall polymers for L-ascorbic acid (AA) encapsulation as a tool for their preservation against the thermo-oxidative degradation was investigated. The influence of such polymers used as wall material on the AA-content, size, encapsulation efficiency, encapsulation yield and thermo-oxidative stability were evaluated. The AA-microparticles were obtained using the spray-drying technique. An experimental Taguchi design was employed to assess the influence of the variables in the encapsulation process. The microparticles morphology and size distribution were characterized by scanning electron microscopy and laser diffraction. The thermal stability of AA microparticles was studied by differential scanning calorimetry and thermogravimetry analysis. This work points out the viability to encapsulate AA using GA and ALG through a spray-drying process. In general, a product yield ranging from 35.1% to 83.2% and an encapsulation efficiency above 90% was reached. Spherical microparticles with a smooth surface were obtained with a mean diameter around 6 μm and 9 μm for the those prepared with GA and ALG, respectively. The thermo-oxidative analysis showed that both polymers allow maintaining AA stable up to 188 °C, which is higher than the traditional processing temperature used in the fish feed industry.

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Thermal stability of paracetamol and its pre-formulates obtained by spray drying

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-006-8006-3 ◽

2007 ◽

Vol 88 (2) ◽

pp. 377-382 ◽

Cited By ~ 8

Author(s):

Antonilêni F. D. Medeiros ◽

Ana Flávia O. Santos ◽

F. S. de Souza ◽

J. V. V. Procópio ◽

Márcia Ferraz Pinto ◽

...

Keyword(s):

Thermal Stability ◽

Spray Drying ◽

Thermal Stability Of

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Encapsulation efficiency and controlled release of Ganoderma lucidum polysaccharide microcapsules by spray drying using different combinations of wall materials

International Journal of Biological Macromolecules ◽

10.1016/j.ijbiomac.2018.12.153 ◽

2019 ◽

Vol 125 ◽

pp. 962-969 ◽

Cited By ~ 12

Author(s):

Ping Shao ◽

Shuangqing Xuan ◽

Weicheng Wu ◽

Liang Qu

Keyword(s):

Controlled Release ◽

Spray Drying ◽

Ganoderma Lucidum ◽

Encapsulation Efficiency ◽

Wall Materials

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Influence of Different Wall Materials on the Microencapsulation of Virgin Coconut Oil by Spray Drying

International Journal of Food Engineering ◽

10.1515/ijfe-2014-0215 ◽

2015 ◽

Vol 11 (1) ◽

pp. 61-69 ◽

Cited By ~ 12

Author(s):

Yen Yi Hee ◽

Chin Ping Tan ◽

Russly Abdul Rahman ◽

Noranizan Mohd Adzahan ◽

Wee Ting Lai ◽

...

Keyword(s):

Oxidative Stability ◽

Spray Drying ◽

Encapsulation Efficiency ◽

Coconut Oil ◽

Gum Arabic ◽

Sodium Caseinate ◽

Whey Protein Concentrate ◽

Wall Material ◽

Virgin Coconut Oil ◽

Wall Materials

Abstract The main objective of this study was to evaluate the influence of the different wall material combinations on the microencapsulation of virgin coconut oil (VCO) by spray drying. Maltodextrin (MD) and sodium caseinate (SC) were used as the basic wall materials and mixed with gum Arabic (GA), whey protein concentrate (WPC) and gelatin (G). The stability, viscosity and droplet size of the feed emulsions were measured. MD:SC showed the best encapsulation efficiency (80.51%) and oxidative stability while MD:SC:GA presented the lowest encapsulation efficiency (62.93%) but better oxidative stability than the other two combinations. Microcapsules produced were sphere in shape with no apparent fissures and cracks, low moisture content (2.35–2.85%) and high bulk density (0.23–0.29 g/cm3). All the particles showed relatively low peroxide value (0.34–0.82 meq peroxide/kg of oil) and good oxidative stability during storage. MD:SC:GA microencapsulated VCO had the highest antioxidant activity in both of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) (0.22 mmol butylated hydroxyanisole (BHA)/kg of oil) and 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays (1.35 mmol trolox/kg of oil).

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