scholarly journals Effect of Maltodextrin Replacement by Selected Native Starches and Disaccharides on Physicochemical Properties of Pumpkin Oil Capsules Prepared by Spray-Drying

2021 ◽  
Vol 12 (1) ◽  
pp. 33
Author(s):  
Dorota Ogrodowska ◽  
Iwona Zofia Konopka ◽  
Małgorzata Tańska ◽  
Waldemar Brandt ◽  
Beata Piłat
Keyword(s):  
Oxidative Stability ◽  
Spray Drying ◽  
Encapsulation Efficiency ◽  
Glycaemic Index ◽  
Wheat Starch ◽  
Core Material ◽  
Rice Starch ◽  
Antioxidant Agent ◽  
Model Oil ◽  
Cold Pressed

The aim of the study is to compare selected carbohydrates that differed in the glycaemic index: maltodextrin, three native starches (wheat, rice, maize), and two disaccharides (trehalose and lactose) used to encapsulation of model oil (in this case cold-pressed pumpkin oil). Encapsulation efficiency of pumpkin oil by spray drying, size of obtained capsules, oxidative stability of encapsulated oil, and retention of tocopherols, squalene, and sterols in surface and core material of capsules were determined. It was found that encapsulation efficiency varied from 35% for rice starch to 68–71% for wheat starch, maltodextrin, and lactose. The bulk density of capsules was independent of the used carbohydrate type (189–198 kg/m3), while their size was significantly lower for samples of pumpkin oil encapsulated in native starches (over 2 times compared to capsules with trehalose). Of the best lipid capturing agents (native wheat starch, maltodextrin, and lactose), wheat starch mainly bound tocopherols, squalene, and sterols to the capsule surface, while lactose to the core material of the capsules (35.5–81.2%). Among tested carbohydrates, native wheat starch acted as the best antioxidant agent (oxidative stability was 15.1 h vs. 9.4 h for pure pumpkin oil).

scholarly journals Physicochemical characterization and oxidative stability of microencapsulated edible sacha inchi seed oil by spray drying

2020 ◽  
Vol 71 (4) ◽  
pp. 387
Author(s):  
L. Landoni ◽  
R. Alarcon ◽  
L. Vilca ◽  
N. Chasquibol ◽  
M. C. Pérez-Camino ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Spray Drying ◽  
Encapsulation Efficiency ◽  
Physicochemical Characterization ◽  
Physicochemical Characteristics ◽  
Whey Protein Concentrate ◽  
Arabic Gum ◽  
Sacha Inchi Oil ◽  
Sacha Inchi ◽  
Drying Technology

The aim of this work was to obtain sacha inchi oil (SIO) microcapsules from two different species, Plukenetia volubilis L. (SIVO) and Plukenetia huayllabambana L. (SIHO), using different biopolymers as wall materials and spray drying technology. The physicochemical characteristics such as encapsulation efficiency, particle size, morphology and oxidative stability were analyzed in order to select the best formulation that could potentially be used as an ingredient in the development of functional food. Bulk SIO and four formulations were tested for each oil ecotype, using different encapsulating agents: maltodextrin (MD), Arabic gum (AG), whey protein concentrate (WPC) and modified starch HI-CAP®-100 (H). Microcapsules made of H presented the highest oxidative stability and encapsulation efficiency compared to AG, AG:MD or AG:MD:WPC formulations.

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

2015 ◽  
Vol 11 (1) ◽  
pp. 61-69 ◽  
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).

scholarly journals Microencapsulation ofβ-Carotene by Spray Drying: Effect of Wall Material Concentration and Drying Inlet Temperature

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Luiz C. Corrêa-Filho ◽  
Maria M. Lourenço ◽  
Margarida Moldão-Martins ◽  
Vítor D. Alves
Keyword(s):  
Antioxidant Activity ◽  
Spray Drying ◽  
Encapsulation Efficiency ◽  
Fruits And Vegetables ◽  
Wall Material ◽  
Inlet Temperature ◽  
Carotene Content ◽  
Arabic Gum ◽  
Air Inlet ◽  
Adverse Environmental Conditions

Carotenoids are a class of natural pigments found mainly in fruits and vegetables. Among them,β-carotene is regarded the most potent precursor of vitamin A. However, it is susceptible to oxidation upon exposure to oxygen, light, and heat, which can result in loss of colour, antioxidant activity, and vitamin activity. Thus, the objective of this work was to study the microencapsulation process ofβ-carotene by spray drying, using arabic gum as wall material, to protect it against adverse environmental conditions. This was carried out using the response surface methodology coupled to a central composite rotatable design, evaluating simultaneously the effect of drying air inlet temperature (110-200°C) and the wall material concentration (5-35%) on the drying yield, encapsulation efficiency, loading capacity, and antioxidant activity. In addition, morphology and particles size distribution were evaluated. Scanning electron microscopy images have shown that the particles were microcapsules with a smooth surface when produced at the higher drying temperatures tested, most of them having a diameter lower than 10μm. The conditions that enabled obtaining simultaneously arabic gum microparticles with higherβ-carotene content, higher encapsulation efficiency, and higher drying yield were a wall material concentration of 11.9% and a drying inlet temperature of 173°C. The systematic approach used for the study ofβ-carotene microencapsulation process by spray drying using arabic gum may be easily applied for other core and wall materials.

scholarly journals Effects of particle formation behavior on the properties of fish oil microcapsules fabricated using a micro-fluidic jet spray dryer

2020 ◽  
Vol 17 (1) ◽  
pp. 27-36
Author(s):  
Xingxing Xiong ◽  
Shengyu Zhang ◽  
Nan Fu ◽  
Hong Lei ◽  
Winston Duo Wu ◽  
...  
Keyword(s):  
Fish Oil ◽  
Oxidative Stability ◽  
Particle Formation ◽  
Core Material ◽  
Wall Material ◽  
Spray Dryer ◽  
Drying Temperature ◽  
Total Solids ◽  
Formation Behavior ◽  
Solids Content

Abstract Fish oil was encapsulated with whey protein isolate (WPI) as wall material using a Micro-Fluidic Jet Spray Dryer. The effects of core/wall material ratio, drying temperature and total solids content on the properties of microcapsules were studied. Low core/wall material ratios at 1:5 and 1:3 resulted in high encapsulation efficiency (EE) and excellent oxidative stability of microparticles during storage. Reducing the inlet temperature from 160 to 110 °C remarkably decreased EE from around 99 to 64.8%, associated with substantial increases in peroxide value during storage. The total solids content mainly altered the morphology of microcapsules, showing little influence on EE and oxidative stability. We proposed that the different drying conditions impacted on particle formation behavior during spray drying, which could be a crucial factor responsible for the differences in the quality attributes of microparticles. A low core/wall material ratio and high drying temperature facilitated the formation of a rigid protein skin at droplet surface during drying, whereas a high solids fraction in the droplets could limit possible droplet shrinkage. These factors contributed positively to the encapsulation of the lipophilic core material.

Continuous low-temperature spray drying approach for efficient production of high quality native rice starch

2021 ◽  
pp. 1-16
Author(s):  
Jamie Boon Jun Tay ◽  
Xinying Chua ◽  
Cailing Ang ◽  
Kelvin Kim Tha Goh ◽  
Gomathy Sandhya Subramanian ◽  
...  
Keyword(s):  
Low Temperature ◽  
Spray Drying ◽  
Rice Starch ◽  
Efficient Production ◽  
High Quality

Synthesis and Characterization of Porous ZrO2-Y2O3-TiO2 Ceramics Prepared by Coprecipitation

2012 ◽  
Vol 727-728 ◽  
pp. 1387-1392 ◽  
Author(s):  
Luan M. Medeiros ◽  
Fernando S. Silva ◽  
Juliana Marchi ◽  
Walter Kenji Yoshito ◽  
Dolores Ribeiro Ricci Lazar ◽  
...  
Keyword(s):  
Ceramic Composite ◽  
High Strength ◽  
Ceramic Composites ◽  
Rice Starch ◽  
X Ray Diffraction ◽  
Zirconia Ceramics ◽  
Pore Former ◽  
X Ray ◽  
Cold Pressed

Zirconium dioxide (zirconia) ceramics are known by its high strength and toughness and titanium dioxide (titania) ceramics has outstanding surface properties. The ceramic composite formed between the two oxides are expected to have advantages of both ceramics, especially when its surface area is increased by pores. In this work, ceramic composites of ZrO2-Y2O3-TiO2were synthesized by coprecipitation and rice starch was added as pore former in 10, 20 and 30 wt%. Powders were cold pressed as cylindrical pellets and sintered at 1500 °C for 01 hour and ceramics were characterized by techniques as Archimedes method for density measurements, X-ray diffraction and scanning electron microscopy. Results showed that pores are inhomogeneously distributed through ceramic bodies.

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