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Showing papers on "Gum arabic published in 2022"


Journal ArticleDOI
TL;DR: Findings show that zein/GA nanoparticles represent a promising delivery system for natural extracts, fabricated through a facile and versatile process.

25 citations


Journal ArticleDOI
TL;DR: In this paper , the effect of different emulsification strategies for β-carotene (BC) encapsulation was evaluated in terms of zeta-potential, droplet size, and rheological properties.

23 citations


Journal ArticleDOI
TL;DR: In this article , the authors investigated the encapsulation of a rutin-rich extract from Ruta chalepensis L. in zein nanoparticles (hydrodynamic diameter of 80-170 nm) prepared by antisolvent precipitation and stabilized by gum arabic (GA).

21 citations


Journal ArticleDOI
TL;DR: In this paper , the interfacial behavior of GA and sugar beet pectin on the oil-water interface was studied and compared through dissipative quartz crystal microbalance and interfacial dilatational rheology.

21 citations


Journal ArticleDOI
13 Jan 2022-Coatings
TL;DR: In this article , the influence of some edible coatings (namely, cactus pear stem, moringa, and henna leaf) on the guava fruits' properties when stored under ambient and refrigeration temperatures for 7, 14, and 21 days.
Abstract: Guava is a nutritious fruit that has perishable behavior during storage. We aimed to determine the influences of some edible coatings (namely, cactus pear stem (10%), moringa (10%), and henna leaf (3%) extracts incorporated with gum Arabic (10%)), on the guava fruits’ properties when stored under ambient and refrigeration temperatures for 7, 14, and 21 days. The results revealed that the coating with gum Arabic (10%) only, or combined with the natural plant extracts, exhibited a significant reduction in weight loss, decay, and rot ratio. Meanwhile, there were notable increases in marketability. Moreover, among all tested treatments, the application of gum Arabic (10%) + moringa extract (10%) was the superior treatment for most studied parameters, and exhibited for the highest values for maintaining firmness, total soluble solids, total sugars, and total antioxidant activity. Overall, it was suggested that coating guava with 10% gum Arabic combined with other plant extracts could maintain the postharvest storage quality of the cold-storage guava.

21 citations


Journal ArticleDOI
TL;DR: Gum arabic (GA) is a mixture of potassium, magnesium and calcium salts of polysaccharide acid and is easily soluble in water as mentioned in this paper , and it finds application as a stabilizer, emulsifier, bulking agent, thickener, carrier, glazing and firming agent.

20 citations


Journal ArticleDOI
TL;DR: In this paper, L. rhamnosus cells were encapsulated by spray drying using gum arabic blended with agave fructans, maltodextrin, inulin, or trehalose as wall materials.
Abstract: The consumption of Lactobacillus rhamnosus HN001 enhances human gastrointestinal health. However. L. rhamnosus viability decreases during food processing, storage, and gastric conditions. In this study, L. rhamnosus cells were encapsulated by spray drying using gum arabic blended with agave fructans, maltodextrin, inulin, or trehalose as wall materials. Probiotic microcapsules were characterized by encapsulation efficiency and scanning electron microscopy, as well as the viability of L. rhamnosus in vitro simulated gastrointestinal tract and storage conditions (4 and 20 °C), and physicochemical characteristics such as water activity, moisture content, hygroscopicity, and solubility. Microcapsules showed high encapsulation efficiency (84%–93%). The morphology did not show ruptures or cracks on the surface of microcapsules. Gum arabic/trehalose blend preserved probiotic viability with less than 1 log CFU g−1 of loss after eight weeks at 4 °C and less than 3 logs CFU g−1 of loss after eight weeks in aw

19 citations


Journal ArticleDOI
TL;DR: In this article , a red cabbage ( Brassica oleracea L. var . capitata L. f. rubra ) anthocyanin-rich extract was microencapsulated to produce a natural food colorant.
Abstract: Food ingredients obtained from natural sources have been a constant demand from the food industry, since the consumers are avoiding the consumption of foods prepared with synthetic additives. In this study, red cabbage ( Brassica oleracea L. var . capitata L. f. rubra ) anthocyanin-rich extract was microencapsulated to produce a natural food colorant. For this, the microparticles were produced by spray drying using the concentrated (CE) and raw extract (RE) of red cabbage, in different concentrations of maltodextrin and arabic gum . The results obtained demonstrated that the CE presented 50.76 ± 1.13 mg anthocyanins 100 g −1 , which means 1.6-fold higher anthocyanins than the RE. Also, the microparticles obtained from CE showed up to 85 mg anthocyanin 100 g −1 . The formulations containing the highest amount of maltodextrin resulted in the highest yield, reaching 67%. The moisture content in macroparticles varied between 6.25 and 16.42% and the water activity ranged from 0.48 to 0.64, which is a positive value for future food application. The microparticles presented a uniform appearance and homogenous size distribution, with spherical shapes and smooth surfaces. The microparticles containing a high amount of arabic gum showed a tendency to degradation in the thermogravimetric analysis . Otherwise, the interaction between maltodextrin and arabic gum was beneficial to improve the thermal stability of microparticles, confirmed by the glass transition temperature between 37 and 90 °C. In conclusion, the microparticles produced with red cabbage anthocyanin-rich extract can be a promising approach to use as a natural food colorant. • Microparticles were produced with red cabbage anthocyanin-rich extract. • The effect of maltodextrin and arabic gum was evaluated. • Red cabbage anthocyanins are successfully encapsulated by maltodextrin-arabic gum. • Microencapsulated anthocyanin-rich extract can be used as a natural food colorant.

17 citations


Journal ArticleDOI
Man Xiao, Bin Tang, Jiaming Qin, Kao Wu, Fatang Jiang 
TL;DR: In this paper , the effects of virgin coconut oil (VCO) contents (10, 30, 50, and 70%) on the properties of the emulsions and the films of corn starch/sodium alginate/gum Arabic composite were investigated.

15 citations


Journal ArticleDOI
TL;DR: In this article , a combination of hydrocolloid gum arabic (GA) and carboxymethyl cellulose (CMC) was used to extend postharvest life of tomatoes.

15 citations


Journal ArticleDOI
TL;DR: In this paper , L. rhamnosus cells were encapsulated by spray drying using gum arabic blended with agave fructans, maltodextrin, inulin, or trehalose as wall materials.
Abstract: The consumption of Lactobacillus rhamnosus HN001 enhances human gastrointestinal health. However. L. rhamnosus viability decreases during food processing, storage, and gastric conditions. In this study, L. rhamnosus cells were encapsulated by spray drying using gum arabic blended with agave fructans, maltodextrin, inulin, or trehalose as wall materials. Probiotic microcapsules were characterized by encapsulation efficiency and scanning electron microscopy, as well as the viability of L. rhamnosus in vitro simulated gastrointestinal tract and storage conditions (4 and 20 °C), and physicochemical characteristics such as water activity, moisture content, hygroscopicity, and solubility. Microcapsules showed high encapsulation efficiency (84%–93%). The morphology did not show ruptures or cracks on the surface of microcapsules. Gum arabic/trehalose blend preserved probiotic viability with less than 1 log CFU g−1 of loss after eight weeks at 4 °C and less than 3 logs CFU g−1 of loss after eight weeks in aw<0.33 at 20 °C. The powders produced with gum arabic/trehalose showed the highest viability under simulated gastrointestinal conditions. The physicochemical characteristics of the powders were suitable to protect the viability of probiotics during production and under gastrointestinal conditions, prolonging their shelf life without compromised the beneficial health effects.

Journal ArticleDOI
TL;DR: In this paper , a tri-nanocomposite system of biocompatible polymers (gelatin/gum arabic) functionalized onto graphene-oxide nanosheets for controlling the release of an anticancer, doxorubicin (DOX), was fabricated via green-biosynthesis.

Journal ArticleDOI
TL;DR: In this article , the ability of pea protein isolates (PPI) to form complex coacervates with tragacanth gum (TRAG) was used for the microencapsulation of α-tocopherol mixture with pH-dependent release properties.
Abstract: The ability of pea protein isolates (PPI) to form complex coacervates with tragacanth gum (TRAG) was used for the microencapsulation of α-tocopherol mixture with pH-dependent release properties. The microcapsules were compared to three other models: PPI alone, PPI and gum arabic (PPI-GAC, known to form microcapsules of complex coacervates), and PPI and tara gum (PPI-TARA, non-ionic polysaccharides). The behaviors of the complex coacervates and microcapsules were studied according to the protein/polysaccharide mixture and protein/polysaccharide ratio. The formation of complex coacervates from the PPI-TRAG and PPI-GAC mixtures impacted the particle size of the liquid suspensions and microcapsules, the efficiency of encapsulation and the active release profile. An interesting gastroprotective behavior was identified for the PPI-TRAG mixture at the 1:1 ratio in simulated digestion media. Overall, the results showed the ability of PPI associated with polysaccharides to form microcapsules with a pH-dependent release behavior, that is promising in the field of gastroprotective microencapsulation. • PPI-polysaccharide ratio impacted the particle size of the suspension. • Spray-dried complex coacervate microcapsules had pH-dependent release behavior. • Release behavior was dependent to PPI-polysaccharide ratio. • Tragacanth gum was a good alternative to gum arabic as a gastroprotective component.

Journal ArticleDOI
TL;DR: In this paper , the pigment betacyanin extracted from dragon fruit peels, was encapsulated using the complex coacervation technique, and four distinct carrier agents, namely maltodextrin, gum arabic, xanthan gum, and gelatin were mixed with sodium alginate to form the wall materials.
Abstract: Dragon fruit peel contains phytochemicals and natural pigment betacyanin. The crude extract was extracted from the freeze-dried dragon fruit (Hylocereus undatus) peel powder using ultrasonication and betacyanin was isolated by aqueous two-phase extraction. The pigment betacyanin extracted from the dragon fruit peels, was encapsulated using the complex coacervation technique. For encapsulation, four distinct carrier agents, namely maltodextrin, gum arabic, xanthan gum, and gelatin were mixed with sodium alginate to form the wall materials. The betacyanin microcapsule using gum arabic as the wall material had the highest encapsulation efficiency (92.265%), followed by maltodextrin (88.365%), xanthan gum (84.655%), and gelatin (80.526%). The hygroscopicity, swelling index, and solubility of the formulated four betacyanin microcapsules were in the range of 7.581–9.462 g/100 g, 120.155–153.545%, and 54.645–65.216%, respectively. The thermal stability of four microcapsules treated at 80 °C and pH 7 was revealed to have a half-life period of 55–110 min. The release behaviour of microcapsules in terms of betacyanin content in simulated gastric juice were fitted with Higuchi, Korsmeyer-Peppas, Weibull, and Peppas-Sahalin models. The findings support the concept that microencapsulation enables the formulation of a stable product containing functional components.

Journal ArticleDOI
08 Mar 2022-Agronomy
TL;DR: In this paper , an attempt was made to provide a suitable formulation for a Streptomyces fulvissimus Uts22 strain based on alginate-Arabic gum and nanoparticles with a layer-by-layer technique.
Abstract: Damping-off disease due to Pythium aphanidermatum is one of the most harmful diseases of cucumber. One of the critical issues in the field of biological control is the establishment of a link between the beneficial bacteria screened in the laboratory and its industrial application. Therefore, when developing biocontrol agents, it is necessary to study the optimization of mass production conditions and to select a suitable carrier for their final formulation. In this study, an attempt was made to provide a suitable formulation for a Streptomyces fulvissimus Uts22 strain based on alginate–Arabic gum and nanoparticles (SiO2 and TiO2) with a layer-by-layer technique. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) studies showed that when Arabic gum was added to the composition, an electrostatic interaction occurred between alginate and Arabic gum. The scanning electron microscope image of beads show a cubic shape and good dispersion of microcapsules. The encapsulation efficiency in the prepared formulation was reported to be 94%. The maximum release of bacteria from the capsule was recorded on the 35th day of storage, about 109 CFU/gr. The greenhouse experiments showed that encapsulated bacteria resulted in a 95% reduction in damping-off disease of cucumber and showed more potential effects on increasing plant growth traits than free bacteria. This encapsulation strategy can be considered as a suitable alternative for future applications in the agricultural field.

Journal ArticleDOI
TL;DR: In this article , a novel multifunctional food packaging was developed by incorporating blood orange anthocyanins (BOA) and thyme oil (TO) emulsion into a chitosan-gum Arabic film matrix.

Journal ArticleDOI
TL;DR: In this article, self-assembly composite nanoparticles from Stauntonia brachyanthera seed albumin (SBSA), gum Arabic (GA), and carboxymethylcellulose (CMC) were developed for lutein encapsulation.

Journal ArticleDOI
TL;DR: In this article , chitosan and gum Arabic coacervated complex (CGCC) were used to stabilize high internal phase Pickering emulsion (HIPE), and cinnamon essential oil (CEO) was incorporated into oil phase.

Journal ArticleDOI
TL;DR: In this paper , self-assembly composite nanoparticles from Stauntonia brachyanthera seed albumin (SBSA), gum Arabic (GA), and carboxymethylcellulose (CMC) were developed for lutein encapsulation.

Journal ArticleDOI
TL;DR: In this paper , the authors optimized the ultrasound assisted extraction (UAE) condition of mulberry leaf extract (MLE) using response surface methodology and to microencapsulate MLE by spray drying using different coating materials and ratios of coating material and MLE.

Journal ArticleDOI
TL;DR: In this article , the authors report the eco-friendly fabrication, characterization, wound healing and bacteriostatic ability of Aloe vera-Gum Arabic-Silver-nanocomposite (Av-GA-Pc-AgNCs).

Journal ArticleDOI
TL;DR: In this article , the long-term stability of gelatin systems prepared with different gelatins (type B from bovine, type A from pig skin, or Type A from fish skin) stored below and above the sol-gel transition temperature was compared.

Journal ArticleDOI
TL;DR: In this paper , a new emulsified film based on konjac glucomannan (KGM)/agar/gum Arabic (GA) incorporating virgin coconut oil (VCO) was investigated.
Abstract: This study aimed to develop a new emulsified film based on konjac glucomannan (KGM)/agar/gum Arabic (GA) incorporating virgin coconut oil (VCO). The effects of VCO on the physical, structural, and water barrier properties of the film were investigated. The values of the mechanical and water barrier properties were different with statistical significance (p < 0.05), with VCO contents ranging from 0.1% to 0.6% of the film solid weights. The addition of VCO decreased the tensile strength but effectively increased the elongation at the break of the films. Increased VCO concentrations resulted in decreased water vapor permeability, reduced water swelling, solubility, and adsorption, and increased water contact angle. Compared with cucumber without packaging, packed cucumber with emulsified film showed significantly lower weight loss and firmness reduction during storage up to 12 days at 7 ± 1 °C. Fourier transform infrared spectroscopy results indicated intermolecular hydrogen bonds between KGM, agar, and GA occurred, and X-ray diffraction results suggested that all the films were in the amorphous status. Combining all the above results, the mechanism of the water barrier property improvement was proposed. This study offers an alternative emulsion polysaccharide-based edible film with high potential to be used in cucumber packaging. • A novel konjac glucomannan-based emulsified film was fabricated and characterized. • Virgin coconut oil addition greatly improved the water barrier property of the film. • Virgin coconut oil addition can positively influence the EAB of the film. • Effect of emulsified film was assessed on the preservation of cucumber.

Journal ArticleDOI
TL;DR: In this article, a new emulsified film based on konjac glucomannan (KGM)/agar/gum Arabic incorporating virgin coconut oil (VCO) was developed and the effects of VCO on the physical, structural and water barrier properties of the film were investigated.
Abstract: This study aimed to develop a new emulsified film based on konjac glucomannan (KGM)/agar/gum Arabic (GA) incorporating virgin coconut oil (VCO). The effects of VCO on the physical, structural, and water barrier properties of the film were investigated. The values of the mechanical and water barrier properties were different with statistical significance (p

Journal ArticleDOI
TL;DR: In this paper , the authors demonstrate a rapid method to directly monitor 2,4-D pesticides in water environment without the need of sample pre-treatment by using Silver-Gum Arabic (Ag-GA) electrochemically co-deposited SERS substrates.
Abstract: Surface Enhanced Raman is a promising analytical method for harmful pesticides detection. Herein, we demonstrate a rapid method to directly monitor 2,4-D pesticide in water environment without the need of sample pre-treatment by using Silver-Gum Arabic (Ag-GA) electrochemically co-deposited SERS substrates. This electrochemical synthesis of large-area (40 µm x 20 µm), high nano particle density, and homogeneous SERS substrates needs as little as 2 µL AgNO3 and Gum Arabic mixed solution by a portable potentiostat. Different morphologies including Ag-GA spherical nanoparticles and nano dendrites were synthesized by tuning the deposition parameters. This study therefore offers a novel way to fabricate SERS substrates for determination of 2,4-D pesticides down to 1 pM in half hour and down to 0.001 nM immediately in deionized water, 0.15 nM in commercial bottled and also river water samples. This Ag-GA SERS sensor showed linear response towards 2,4-D detection in a wide linear range.

Journal ArticleDOI
TL;DR: In this article , complex coacervation was used to obtain novel geraniol-containing microcapsules using gelatin/gum arabic, and the effect of processing conditions on the size and morphology of the micro-capsules and subsequent release properties was investigated.

Journal ArticleDOI
TL;DR: In this article , a stable crystalline chitosan/gum Arabic composite (CGAC) nanopowder was successfully synthesized and characterized by various methods and applied to mild steel samples and examined its anticorrosion ability.
Abstract: The application of green and sustainable anticorrosive coatings is becoming of upsurge interest for the protection of metallic materials in aggressive environments. Herein, a stable crystalline chitosan/gum Arabic composite (CGAC) nanopowder was successfully synthesized and characterized by various methods. The CGAC nanopowder with different doses (25, 50, 100, and 200 ppm) was used to coat mild steel samples and examined its anticorrosion ability in 3.5 wt.% NaCl solution using gravimetric, electrochemical measurements, and surface characterization techniques. All methods yielded consistent results revealing that nanocomposite coatings can impart good anticorrosive properties to the steel substrate. The obtained protection efficiency was enhanced with increasing CGAC dose in the applied surface layer achieving 96.6% for the 200 ppm-coating. SEM and AFM surface morphologies of uncoated and coated samples after the inundation in the saline solution showed that CGAC coating can block the active corrosive sites on the steel surface, and prevent the aggressive Cl- ions from attacking the metallic substrate. The water droplet contact angle gave further support as it increased from 50.7° for the pristine uncoated surface to 101.2° for the coated one. The current research demonstrates a promising natural and reliable nanocomposite coating for protecting mild steel structures in the marine environment.

Journal ArticleDOI
TL;DR: In this article , a soy protein isolate (SPI)-gum Arabic (GA) composites were prepared through complexation and glycated conjugation and characterized by various analytical techniques.

Journal ArticleDOI
TL;DR: In this paper , the feasibility of using microwave-infrared heating (MIR) to stimulate color/flavor changes of 3D-printed white radish and potato gels containing lipid-soluble natural pigment and essence microcapsules was investigated.

Journal ArticleDOI
TL;DR: In this article , fibrous aggregates of whey protein isolate (WPI) and gum arabic (GA) containing ferric ions were fabricated, and its fibrillation process, morphology, secondary structure, driving force, iron release in simulated gastrointestinal phase as well as its sensory properties have been investigated.