Production of reconstitutable nanoliposomes loaded with flaxseed protein hydrolysates: Stability and characterization

Assadpour

Comp Rev Food Sci Food Safe

et al. 2020

Self Cite

206

108

Nowadays, many consumers prefer foods with a high content of nutraceuticals that contribute to the prevention or healing of chronic diseases. Therefore, in recent years, more and more researchers have studied the bioefficiency, safety, and toxicity of nutraceutical-enriched foods. The key stage of nutraceutical bioefficiency is oral bioavailability, which involves the following processes: the release of nutraceuticals from food matrices or nanocarriers in gastrointestinal fluids, the solubilization of nutraceuticals and their interaction with other components of gastrointestinal fluids, the absorption of nutraceuticals by the epithelial layer, and the chemical and biochemical transformations into epithelial cells. These processes are endogenous factors that greatly influence the bioavailability of nutraceuticals. In addition to endogenous factors, the bioavailability of nutraceuticals is also affected by exogenous factors, such as: physicochemical properties of nutraceuticals, food matrix, food processing and storage, and so forth. Both the endogenous and exogenous factors are comprehensively analyzed in this review. Thus, the physicochemical and enzymatic processes involved in food digestion are described, highlighting the role of each stage of gastrointestinal tract (mouth, stomach, and intestine) in nutraceuticals bioaccessibility. The structure and functions of the mucus and epithelial layers, the mechanisms involved in the active and passive transport of nutraceuticals through the cell membrane, and phase I and phase II metabolism reactions are also discussed. Finally, this review focuses on several types of bioactive-loaded nanocarriers such as lipid-based, surfactant-based, and biopolymeric nanocarriers that improve the bioavailability of nutraceuticals. K E Y W O R D Sbioaccessibility, bioavailability, food matrix, gastrointestinal fate, nanocarriers, nutraceuticals 954

Section: Role Of the Nanocarriers In Improving Nutraceutical Bioavailmentioning

confidence: 99%

Bioavailability of nutraceuticals: Role of the food matrix, processing conditions, the gastrointestinal tract, and nanodelivery systems

Assadpour

Comp Rev Food Sci Food Safe

et al. 2020

Self Cite

206

108

Food Science & Nutrition

“…Particle size and PDI are among the important parameters in nanovesicles' stability and homogeneity (Sarabandi, Jafari, et al, 2019a).…”

Section: Characterization Of Nanoliposomesmentioning

confidence: 99%

Manufacturing of nanoliposomal extract from Sargassum boveanum algae and investigating its release behavior and antioxidant activity

Savaghebi

Barzegar

Mozafari

2019

In this paper, the fabrication of algal extract-loaded nanoliposomes was optimized based on the central composite response surface design. Different concentrations of phenolic compounds (500, 1,000, and 1,500 ppm) of algal extract and lecithin (0.5, 1.25, and 2% w/w) were applied for preparation of nanoliposomes at process temperatures of 30, 50, and 70°C. Dependent variables were zeta potential, entrapment efficiency, size, and particle size distribution. The particle size of the loaded nanoliposomes ranged from 86.6 to 118.7 nm and zeta potential from −37.3 to −50.7 mV.The optimal conditions were as follows: 0.5% lecithin, 30°C process temperature, and 1,313 ppm of the phenolic compounds extracted from algae. Under these conditions, the experimental entrapment efficiency of the phenolic compounds was 45.5 ± 1.2%. FTIR analysis has verified the encapsulation of algal extract in nanoliposomes. Algal extract phenolic compounds also increased phase transition temperature (Tc) of nanoliposomes (1.6°C to 6.3°C). Moreover, the thermo-oxidative protection of nanoliposomes for the algal extract has been proved by examining the DSC thermograms.It has been demonstrated that the formulated nanoliposomes have a good stability during storage conditions, and they are able to control the release of phenolic compounds at different pH values. During the encapsulation process, the antioxidant activity of the algal extract has been maintained to an acceptable level. Consequently, algal extract-loaded nanoliposomes can be used as a natural antioxidant in lipidbased foods. K E Y W O R D Salgal extract, antioxidant, encapsulation, nanoliposome, polyphenols 300 |

“…The peaks at 1160, 1079 and 1020 cm −1 suggested the presence of hemicelluloses 28 . The peak around 929 cm −1 was ascribed to the vibration of β-glycoside 23 and the peak at 765 cm −1 due to the vibration of α-glycoside 31 . The peak of S–O in the control sample was at 1238 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Soil-applied selenite increases selenium and reduces cadmium in roots of Moringa oleifera

Liu

et al. 2020

Sci Rep

Deficiency of selenium (Se) will lead to malnutrition and decreased immune function of the body. There is a common phenomenon of Se deficiency in foods. In this study, different concentrations of sodium selenite (Na2SeO3) were applied to Moringa oleifera grownin soil. The purpose was to explore the feasibility of Se biofortification of M. oleifera root. The effect of exogenous Se on the accumulation of Se and cadmium (Cd) in the roots of M. oleifera was studied by inductively coupled plasma mass spectrometry, and the mechanism of exogenous Se on the accumulation of Se and Cd in the roots was studied by Fourier transform infrared spectroscopy (FTIR) combined with principal component analysis and partial least squares regression analysis. The results showed that Na2SeO3 significantly affected the accumulation of Se and Cd in the roots (p < 0.05). The increase in Se was highest when Na2SeO3 was around 4.0 mg/kg, which increased by 315% compared with the control. The decrease in Cd was the lowest when Na2SeO3 was around 2.0 mg/kg, which decreased by 80% compared with the control. The results of FTIR analysis showed that Na2SeO3 treatment changed the carboxylate, phosphate radical, hemicellulose and protein in roots of M. oleifera, while the increase of Se was related to hemicellulose, protein, polysaccharide and lignin, and the decrease of Cd was related to hemicellulose and protein. The results showed that exogenous Se increased the accumulation of Se and inhibited the absorption of Cd. Therefore, the roots of M. oleifera can be used in Se biofortified products.