Facile controlling internal structure of β-carotene-loaded protein nanoparticles by Flash Nanoprecipitation

WPI nanoparticles were fabricated with Ca2+ induced cross-linking and used as an effective particle stabilizer for HIPPE formulation aiming to improve the chemical stability and bioaccessibility of β-carotene.

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Entrapment of β-carotene and zinc in whey protein nanoparticles using the pH cycle method: Evidence of sustained release delivery in intestinal and gastric fluids

Food Bioscience ◽

10.1016/j.fbio.2018.10.002 ◽

2018 ◽

Vol 26 ◽

pp. 161-168 ◽

Cited By ~ 5

Author(s):

Alshaimaa Salem ◽

Adham R. Ramadan ◽

Tamer Shoeib

Keyword(s):

Sustained Release ◽

Whey Protein ◽

Protein Nanoparticles ◽

Method Evidence ◽

Gastric Fluids ◽

Β Carotene

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X-ray microtomography

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100107058 ◽

1988 ◽

Vol 46 ◽

pp. 998-999

Author(s):

H.W. Deckman ◽

B.F. Flannery ◽

J.H. Dunsmuir ◽

K.D' Amico

Keyword(s):

Computed Tomography ◽

Internal Structure ◽

Imaging Technique ◽

Three Dimensional ◽

Tissue Structure ◽

Individual Element ◽

X Ray ◽

Non Invasive ◽

Panoramic Imaging ◽

Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

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The internal structure of medullated wool

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100111987 ◽

1984 ◽

Vol 42 ◽

pp. 388-389

Author(s):

Leo Barish

Keyword(s):

Light Microscopy ◽

Internal Structure ◽

Wool Fiber ◽

Guard Hair ◽

Bright Field ◽

Wool Fibers ◽

Thin Skin ◽

Air Pockets

Although most of the wool used today consists of fine, unmedullated down-type fibers, a great deal of coarse wool is used for carpets, tweeds, industrial fabrics, etc. Besides the obvious diameter difference, coarse wool fibers are often medullated.Medullation may be easily observed using bright field light microscopy. Fig. 1A shows a typical fine diameter nonmedullated wool fiber, Fig. IB illustrates a coarse fiber with a large medulla. The opacity of the medulla is due to the inability of the mounting media to penetrate to the center of the fiber leaving air pockets. Fig. 1C shows an even thicker fiber with a very large medulla and with very thin skin. This type of wool is called “Kemp”, is shed annually or more often, and corresponds to guard hair in fur-bearing animals.

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The German Post-Critical Belief Scale: Internal and External Validity

Zeitschrift für Sozialpsychologie ◽

10.1024/0044-3514.34.4.219 ◽

2003 ◽

Vol 34 (4) ◽

pp. 219-226 ◽

Cited By ~ 7

Author(s):

Bart Duriez ◽

Claudia Appel ◽

Dirk Hutsebaut

Keyword(s):

Internal Structure ◽

Present Article ◽

External Validity ◽

German Version ◽

Dutch Version ◽

German Sample ◽

Belief Scale ◽

Internal And External Validity

Abstract: Recently, Duriez, Fontaine and Hutsebaut (2000) and Fontaine, Duriez, Luyten and Hutsebaut (2003) constructed the Post-Critical Belief Scale in order to measure the two religiosity dimensions along which Wulff (1991 , 1997 ) summarized the various possible approaches to religion: Exclusion vs. Inclusion of Transcendence and Literal vs. Symbolic. In the present article, the German version of this scale is presented. Results obtained in a heterogeneous German sample (N = 216) suggest that the internal structure of the German version fits the internal structure of the original Dutch version. Moreover, the observed relation between the Literal vs. Symbolic dimension and racism, which was in line with previous studies ( Duriez, in press ), supports the external validity of the German version.

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Serum Retinol and β-carotene Levels and Risk Factors for Cardiovascular Disease in Morbid Obesity

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831/a000018 ◽

2010 ◽

Vol 80 (3) ◽

pp. 159-167 ◽

Cited By ~ 7

Author(s):

Gabriela Villaça Chaves ◽

Gisele Gonçalves de Souza ◽

Andréa Cardoso de Matos ◽

Dra. Wilza Abrantes Peres ◽

Silvia Elaine Pereira ◽

...

Keyword(s):

Risk Factors ◽

Cardiovascular Disease ◽

Metabolic Syndrome ◽

Morbid Obesity ◽

Serum Levels ◽

World Health ◽

Morbidly Obese ◽

Serum Retinol ◽

Significant Difference ◽

Β Carotene

Objective: To evaluate retinol and β-carotene serum levels and their relationship with risk factors for cardiovascular disease in individuals with morbid obesity, resident in Rio de Janeiro. Methodology: Blood serum concentrations of retinol and β-carotene of 189 morbidly obese individuals were assessed. The metabolic syndrome was identified according to the criteria of the National Cholesterol Education Program (NCEP) and World Health Organization (WHO). Lipid profile, insulin resistance, basal insulin, glycemia, blood pressure, and anthropometry and their correlation with retinol and β-carotene serum levels were evaluated. Results: Metabolic syndrome diagnosis was observed in 49.0% of the sample. Within this percentage the levels of β-carotene were significantly lower when body mass index increased. Serum retinol didn't show this behavior. Serum retinol inadequacy in patients with metabolic syndrome (61.3%), according to WHO criterion, was higher (15.8%) than when the whole sample was considered (12.7%). When metabolic syndrome was diagnosed by NCEP criterion, β-carotene inadequacy was higher (42.8%) when compared to the total sample (37.5%). There was a significant difference between average β-carotene values of patients with and without metabolic syndrome (p=0.048) according to the classification of the NCEP. Lower values were found in patients with metabolic syndrome. Conclusion: Considering the vitamin A contribution in antioxidant protection, especially when risk factors for cardiovascular disease are present, it is suggested that great attention be given to morbidly obese. This could aid in prevention and treatment of cardiovascular disease, which affects a significant part of the population.

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Vitamin A Value of Plant Food Provitamin A - Evaluated by the Stable Isotope Technologies

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831/a000183 ◽

2014 ◽

Vol 84 (Supplement 1) ◽

pp. 25-29 ◽

Cited By ~ 7

Author(s):

Guangwen Tang

Keyword(s):

Stable Isotope ◽

Vitamin A ◽

Provitamin A ◽

Animal Origin ◽

Plant Food ◽

Plant Foods ◽

A Value ◽

Provitamin A Carotenoids ◽

Β Carotene

Humans need vitamin A and obtain essential vitamin A by conversion of plant foods rich in provitamin A and/or absorption of preformed vitamin A from foods of animal origin. The determination of the vitamin A value of plant foods rich in provitamin A is important but has challenges. The aim of this paper is to review the progress over last 80 years following the discovery on the conversion of β-carotene to vitamin A and the various techniques including stable isotope technologies that have been developed to determine vitamin A values of plant provitamin A (mainly β-carotene). These include applications from using radioactive β-carotene and vitamin A, depletion-repletion with vitamin A and β-carotene, and measuring postprandial chylomicron fractions after feeding a β-carotene rich diet, to using stable isotopes as tracers to follow the absorption and conversion of plant food provitamin A carotenoids (mainly β-carotene) in humans. These approaches have greatly promoted our understanding of the absorption and conversion of β-carotene to vitamin A. Stable isotope labeled plant foods are useful for determining the overall bioavailability of provitamin A carotenoids from specific foods. Locally obtained plant foods can provide vitamin A and prevent deficiency of vitamin A, a remaining worldwide concern.

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Internal Structure of the Spanish Adaptation of the Eating Disorder Inventory-3

European Journal of Psychological Assessment ◽

10.1027/1015-5759/a000087 ◽

2012 ◽

Vol 28 (1) ◽

pp. 25-31 ◽

Cited By ~ 7

Author(s):

Paula Elosua ◽

Alicia López-Jáuregui

Keyword(s):

Eating Disorders ◽

Eating Disorder ◽

Internal Structure ◽

Internal Consistency ◽

Clinical Sample ◽

Temporal Stability ◽

Second Order ◽

Order Structure ◽

Eating Disorder Inventory ◽

High Internal Consistency

In this study the Eating Disorder Inventory-3 was adapted to Spanish and analyzed the internal psychometric properties of the test in a clinical sample of females with eating disorders. The results showed a high internal consistency of the scores as well as high temporal stability. The factor structure of the scale composites was analyzed using confirmatory factor analysis. The results supported the existence of a second-order structure beyond the psychological composites. The second-order factor showed high correlation with the factor related to eating disorders. Overall, the Spanish version of the EDI-3 showed good psychometric qualities in terms of internal consistency, temporal stability and internal structure.

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