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Arabic gum

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https://www.readbyqxmd.com/read/28802231/phytochemical-properties-and-pharmacological-effects-of-quercus-ilex-l-aqueous-extract-on-gastrointestinal-physiological-parameters-in-vitro-and-in-vivo
#1
Kaïs Rtibi, Imen Hammami, Slimen Selmi, Dhekra Grami, Hichem Sebai, Mohamed Amri, Lamjed Marzouki
INTRODUCTION: Several research studies have reported on the pharmacological relevance of the medicinal plants used for treating various gastrointestinal disorders and controlling the dietary glucose uptake in the intestinal tract. METHODS: Male rats were used to investigate the pharmacological effects of green oak acorn aqueous extract (GOAE) on gastrointestinal physiological parameters in vivo and in vitro. In this respect, the gastro-intestinal motility and hypersecretion essays were evaluated using a simple test meal (10% charcoal in 5% gum arabic) and castor oil induced diarrhea...
August 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28764044/encapsulation-of-antioxidant-phenolic-compounds-extracted-from-spent-coffee-grounds-by-freeze-drying-and-spray-drying-using-different-coating-materials
#2
Lina F Ballesteros, Monica J Ramirez, Carlos E Orrego, José A Teixeira, Solange I Mussatto
Freeze-drying and spray-drying techniques were evaluated for encapsulation of phenolic compounds (PC) extracted from spent coffee grounds. Additionally, the use of maltodextrin, gum arabic and a mixture of these components (ratio 1:1) as wall material to retain the PC and preserve their antioxidant activity was also assessed. The contents of PC and flavonoids (FLA), as well as the antioxidant activity of the encapsulated samples were determined in order to verify the efficiency of each studied condition. Additional analyses for characterization of the samples were also performed...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28757420/effect-of-different-combinations-of-maltodextrin-gum-arabic-and-whey-protein-concentrate-on-the-encapsulation-behaviour-and-oxidative-stability-of-spray-dried-drumstick-moringa-oleifera-oil
#3
Monica Premi, H K Sharma
The objective of the present study was to investigate the effect of different combinations of carrier agents (Maltodextrin, gum arabic and whey protein concentrate) on the emulsion properties, encapsulation efficiency and oxidative stability of encapsulated drumstick oil powder (EDOP), produced by spray drying to increase its usage as an active ingredient. Feed emulsion characteristics were studied in terms of emulsion stability, droplet size, viscosity and surface charge. Obtained spray dried EDOP was characterized for physical and flow properties, microstructure and oxidative stability...
July 27, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28740977/effects-of-addition-of-hydrocolloids-on-the-textural-and-structural-properties-of-high-protein-intermediate-moisture-food-model-systems-containing-sodium-caseinate
#4
J Li, Y Wu, Y Ma, N Lu, J M Regenstein, P Zhou
High-protein intermediate moisture food (HPIMF) containing sodium caseinate (NaCN) often gave a harder texture compared with that made from whey proteins or soy proteins, due to the aggregation of protein particles. The objectives of this study were to explore whether the addition of hydrocolloids could soften the texture and illustrate the possible mechanism. Three kinds of hydrocolloids, xanthan gum, κ-carrageenan, and gum arabic were chosen, and samples including of these three kinds of hydrocolloids were studied through texture analysis using a TPA test and microstructure observation by confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM)...
August 1, 2017: Food & Function
https://www.readbyqxmd.com/read/28715926/microencapsulation-of-anthocyanin-rich-black-soybean-coat-extract-by-spray-drying-using-maltodextrin-gum-arabic-and-skimmed-milk-powder
#5
Ana Kalušević, Steva Lević, Bojan Čalija, Milena Pantić, Miona Belović, Vladimir Pavlović, Branko Bugarski, Jela Milić, Slađana Žilić, Viktor Nedović
Black soybean coat is insufficiently valorised food production waste rich in anthocyanins. The goal of the study was to examine physicochemical properties of spray dried extract of black soybean coat in regard to carrier materials: maltodextrin, gum Arabic, and skimmed milk powder. Maltodextrin and gum Arabic-based microparticles were spherical and non-porous while skimmed milk powder-based were irregularly shaped. Low water activity of microparticles (0.31-0.33), good powders characteristics, high solubility (80...
August 2, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28709894/adsorption-and-controlled-release-of-potassium-phosphate-and-ammonia-from-modified-arabic-gum-based-hydrogel
#6
Fernanda Zonatto, Edvani C Muniz, Elias B Tambourgi, Alexandre T Paulino
In this work, a modified Arabic gum-based hydrogel copolymerized with acrylamide was synthesized and characterized for application in adsorption and controlled release of potassium, phosphate and ammonia. From FT-IR results, it would be reasonable to assume that the hydrogel was effectively synthesized. The degree of swelling at pure water with pH 6.0 was 21.0g water per g dried hydrogel whereas the degrees of swelling at buffer solutions with pH 4.5 and 7.0 were 7.2 and 9.2g water per g dried hydrogel, respectively...
July 11, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28687390/physicochemical-stability-of-curcumin-emulsions-stabilized-by-ulva-fasciata-polysaccharide-under-different-metallic-ions
#7
Ping Shao, Qiang Qiu, Hangjun Chen, Jieyu Zhu, Peilong Sun
The aim of this research was to investigate the effect of metallic ions (Na(+), Ca(2+), K(+) and Mg(2+)) on the physicochemical stability of curcumin emulsions stabilized by Ulva fasciata polysaccharide (UFP). Mean droplet diameter, PdI, zeta-potential, microscopic morphology, and rheological properties of curcumin emulsion stabilized by UFP were investigated. The results showed that different metal ions had significantly different effects on the stability of emulsion. When the effect of Mg(2+) was compared with others, it was found that Mg(2+) had a pronounced effect on emulsion stability...
July 4, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28640580/a-bioinspired-alginate-gum-arabic-hydrogel-with-micro-nanoscale-structures-for-controlled-drug-release-in-chronic-wound-healing
#8
Mi Li, Haichang Li, Xiangguang Li, Hua Zhu, Zihui Xu, Lianqing Liu, Jianjie Ma, Mingjun Zhang
Biopolymeric hydrogels have drawn increasing research interest in biomaterials due to their tunable physical and chemical properties for both creating bioactive cellular microenvironment and serving as sustainable therapeutic reagents. Inspired by a naturally occurring hydrogel secreted from the carnivorous Sundew plant for trapping insects, here we have developed a bioinspired hydrogel to deliver mitsugumin 53 (MG53), an important protein in cell membrane repair, for chronic wound healing. Both chemical compositions and micro-/nanomorphological properties inherent from the natural Sundew hydrogel were mimicked using sodium alginate and gum arabic with calcium ion-mediated cross-linking...
July 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28629036/intestine-targeted-delivery-potency-of-the-o-carboxymethyl-chitosan-gum-arabic-coacervate-effects-of-coacervation-acidity-and-possible-mechanism
#9
Guo-Qing Huang, Li-Na Liu, Xiao-Na Han, Jun-Xia Xiao
The potential of the glutaraldehyde-crosslinked O-carboxymethyl chitosan (O-CMC)-gum Arabic (GA) coacervate as an intestine-targeted delivery system for hydrophobic compounds was concerned. OCMC-GA coacervates and emulsified bovine serum albumin (BSA)-loaded microcapsules were prepared in pH3.0, 4.5, and 6.0 and their swelling behaviors as well as BSA release profiles in simulated gastrointestinal fluids were measured. All the coacervates showed higher swelling ratios in the simulated gastric solution than in the simulated intestine and colon solutions and the values increased as the coacervation pH increased from 3...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28629000/formulation-and-in-vitro-efficacy-of-antifungal-mucoadhesive-polymeric-matrices-for-the-delivery-of-miconazole-nitrate
#10
G Tejada, G N Piccirilli, M Sortino, C J Salomón, M C Lamas, D Leonardi
Oral candidiasis is the most common opportunistic infection affecting patients with the human immunodeficiency virus. Miconazole buccal tablets or miconazole gel are approved for the treatment of oropharyngeal candidiasis. However, buccal films present more flexibility and also offer protection for the wounded mucosa, reducing pain. Due to their small size and thickness, buccal films may improve patients' compliance, compared to tablets. Additionally, they may increase the relatively short residence time on the mucosa of oral gels, which are easily removed by saliva...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627390/classification-of-hydrocolloids-based-on-in-vitro-starch-digestibility-and-rheological-properties-of-segoami-gel
#11
Da Sol Jung, In Young Bae, Im Kyung Oh, Sang-Ik Han, Sung-Joon Lee, Hyeon Gyu Lee
The influence of hydrocolloids on in vitro starch digestibility and rheological properties of Segoami (a new rice variety fortified with amylose and dietary fiber) gel was investigated in terms of type (sodium alginate, arabic gum, guar gum, locust bean gum, and xanthan gum) and addition levels (0.3-0.7% for rice flour weight) of hydrocolloids. In addition, the behavior of hydrocolloids was analyzed by principal component analysis (PCA) based on both properties of various Segoami-hydrocolloids gels. The first and second principle components (PC) explained 80...
June 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28624082/the-influence-of-carrier-material-on-some-physical-and-structural-properties-of-carrot-juice-microcapsules
#12
Emilia Janiszewska-Turak, Nicolò Dellarosa, Urszula Tylewicz, Luca Laghi, Santina Romani, Marco Dalla Rosa, Dorota Witrowa-Rajchert
This study investigates the effect of carrier type on the physical and structural properties of microcapsules of pure carrot juice. Low-crystallised maltodextrin (MD), gum arabic (GA), mixtures of MD and GA (1:1; 2:1; 3:1) and whey protein isolate (WPI) were used as carriers. Microencapsulation was carried out in a spray-drier at inlet air temperature of 160°C. Powders were investigated for dry matter, water activity, diameter, carotene content and hygroscopicity. In addition, differential scanning calorimetry (DSC) and time domain nuclear magnetic resonance (TD-NMR) were applied to analyse microcapsules glass transition temperature (Tg)...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28595874/evaluation-of-anti-diabetic-activity-of-glycyrrhizin-loaded-nanoparticles-in-nicotinamide-streptozotocin-induced-diabetic-rats
#13
Ruma Rani, Shakti Dahiya, Dinesh Dhingra, Neeraj Dilbaghi, Ki-Hyun Kim, Sandeep Kumar
Glycyrrhizin is an active constituent of the roots and rhizomes of Glycyrrhiza glabra and has anti-hyperglycemic effects. In this study, nanoparticles (NPs) loaded with glycyrrhizin or metformin were evaluated in vivo for their anti-hyperglycemic potency towards type-II diabetes in rats. The NPs were produced via the ionotropic gelation method using the biocompatible polymers chitosan and gum arabic. The polymer concentration was optimized using the 3(2) factorial method to acquire both minimum particle size and maximum encapsulation efficiency...
August 30, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28589039/gum-arabic-reduces-c-reactive-protein-in-chronic-kidney-disease-patients-without-affecting-urea-or-indoxyl-sulfate-levels
#14
Sarra Elamin, Mariam J Alkhawaja, Amina Y Bukhamsin, Mohamed A S Idris, Muntasir M Abdelrahman, Nasrulla K Abutaleb, Abdulrahman A Housawi
INTRODUCTION: Gum Arabic (GA) is a complex polysaccharide with proven prebiotic properties and potentially beneficial systemic effects. METHODS: We randomly allocated 36 chronic kidney disease (CKD) patients to receive 10, 20, or 40 grams daily of GA for four weeks and studied the systemic effects of this intervention. RESULTS: Thirty participants completed the study with baseline glomerular filtration rate 29.1 ± 9.9 mL/min/1.7 m(2)...
2017: International Journal of Nephrology
https://www.readbyqxmd.com/read/28572941/effect-of-psyllium-and-gum-arabic-biopolymers-on-the-survival-rate-and-storage-stability-in-yogurt-of-enterococcus%C3%A2-duransiw3-encapsulated-in-alginate
#15
Yousef Nami, Babak Haghshenas, Ahmad Yari Khosroushahi
Different herbal biopolymers were used to encapsulate Enterococcus durans IW3 to enhance its storage stability in yogurt and subsequently its endurance in gastrointestinal condition. Nine formulations of encapsulation were performed using alginate (ALG), ALG-psyllium (PSY), and ALG-gum Arabic (GA) blends. The encapsulation efficiency of all formulations, tolerance of encapsulated E. durans IW3 against low pH/high bile salt concentration, storage lifetime, and release profile of cells in natural condition of yogurt were evaluated...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28559619/evaluation-of-different-hydrocolloids-to-improve-dough-rheological-properties-and-bread-quality-of-potato-wheat-flour
#16
Xingli Liu, Taihua Mu, Karim Diego Yamul, Hongnan Sun, Miao Zhang, Jingwang Chen, Marie Laure Fauconnier, Perez Vanina Andrea
The aim of study was to investigate the effect of hydroxylpropylmethylcellulose (HPMC), arabic gum (AG), konjac glucomannan (KG) and apple pectin (AP) at 2% (w/w, potato-wheat flour basis) on the potato-wheat dough (the mass ratio was 1:1) rheological, fermentation and bread making properties. The tan δ of potato-wheat dough was significantly increased upon addition of adding HPMC which was close to wheat dough (0.531). Moreover, dough height during fermentation process was significantly improved on addition of hydrocolloids, with the order of HPMC (23...
May 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28554382/a-novel-%C3%AE-galactosidase-from-fusarium-oxysporum-and-its-application-in-determining-the-structure-of-the-gum-arabic-side-chain
#17
Akiho Maruta, Mirei Yamane, Midori Matsubara, Shiho Suzuki, Masami Nakazawa, Mitsuhiro Ueda, Tatsuji Sakamoto
We previously reported that Fusarium oxysporum 12S produces two bifunctional proteins, FoAP1 and FoAP2, with α-d-galactopyranosidase (GPase) and β-l-arabinopyranosidase (APase) activities. The aim of this paper was to purify a third GPase, FoGP1, from culture supernatant of F. oxysporum 12S, to characterize it, and to determine its mode of action towards gum arabic. A cDNA encoding FoGP1 was cloned and the protein was overexpressed in Escherichia coli. Module sequence analysis revealed the presence of a GH27 domain in FoGP1...
August 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28548820/preparation-of-microcapsules-containing-benzoyl-peroxide-initiator-with-gelatin-gum-arabic-polyurea-formaldehyde-shell-and-evaluating-their-storage-stability
#18
M Raeesi, S M Mirabedini, R R Farnood
This work involves the optimized preparation and characterization of microcapsules which contain benzoyl peroxide (BPO) dispersed in dibutyl phthalate (DBP) with gelatin-gum arabic (Gel-GA)/polyurea-formaldehyde (PUF) shell. The microcapsules were prepared in two steps using complex coacervation and in situ polymerization techniques, respectively, at various mixing speeds and different core:shell ratios. The scanning electron microscopy (SEM), optical microscopy, and Fourier transform infrared (FTIR) spectroscopy were used for characterization of prepared microcapsules...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28543634/thaumatin-and-gum-arabic-allergy-in-chewing-gum-factory-workers
#19
Mattias P Tschannen, Ulrich Glück, Andreas J Bircher, Ingmar Heijnen, Claudia Pletscher
Thaumatin is a sweetener and flavor modifier commonly used in the food industry. Likewise, gum arabic is widely used as a food stabilizer and thickening agent. We report here that a powder mixture composed of 10% thaumatin and 90% gum arabic led to allergic symptoms in the upper airways in occupationally exposed individuals: four of eight workers of a chewing gum factory exposed to this powder mixture had pronounced rhinitis. A positive skin prick test result for pure thaumatin was obtained in all four individuals with rhinitis of whom two also had a positive skin prick test result for pure gum arabic and gum arabic-specific IgE...
July 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28531662/microencapsulation-of-gulosibacter-molinativorax-on4-t-cells-by-a-spray-drying-process-using-different-biopolymers
#20
Berta N Estevinho, A Rita Lopes, Vera Sousa, Fernando Rocha, Olga C Nunes
Molinate is a thiocarbamate herbicide used in rice crop protection. As other pesticides, molinate is a recognized environmental pollutant and bio-accumulated by some wildlife forms. Gulosibacter molinativorax ON4(T) is able to hydrolyse molinate into metabolites which are further degraded by other un-related bacteria. Hence, it can be used in molinate bioremediation processes. The aim of this work was to investigate the possibility of producing G. molinativorax ON4(T) microparticles, using different non-toxic biopolymers (arabic gum, modified chitosan, calcium alginate and sodium alginate) as encapsulating agents by a spray-drying process...
May 11, 2017: Journal of Hazardous Materials
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