scholarly journals Performance of Cosmetic Ingredients Evaluated by Their Membrane Protection Efficiency

2021 ◽  
Vol 11 (03) ◽  
pp. 169-185
Author(s):  
Daniela Rodrigues Silva ◽  
Maidileyvis Castro Cabello ◽  
Divinomar Severino ◽  
Mauricio S. Baptista
Keyword(s):  
Protection Efficiency ◽  
Cosmetic Ingredients ◽  
Membrane Protection

Investigations of the corrosion activity of the KAlCl4 melts by the methods of physicochemical analysis

2019 ◽  
Vol 24 (4) ◽  
pp. 59-66
Author(s):  
E.S. Filatov
Keyword(s):  
Water Vapor ◽  
Hydrochloric Acid ◽  
Input Data ◽  
Corrosion Potential ◽  
Physicochemical Analysis ◽  
Metal Alloys ◽  
Corrosion Activity ◽  
Protection Efficiency ◽  
Gas Atmosphere ◽  
Metal Aluminum

Corrosion behavior of metal alloys in a melt of potassium chloroaluminate (KAlCl4) was investigated. Metal aluminum was used as a protector for protection against continuous frontal corrosion. The equilibrium potentials of aluminum and the corrosion potential of the alloys were measured. The data were obtained to evaluate the corrosion ability of the system of molten salt of potassium chloroaluminate - gas (argon) by measuring the redox potential of the specified environment depending on the composition of the gas atmosphere above it, i.e. from impurities of water vapor, hydrochloric acid, oxygen and other, for example, carbonaceous gases. The calculations of the protection efficiency using the potential difference between the metal aluminum and the protected material were performed. The regularities of changes in the equilibrium potentials of aluminum from the temperature and concentration were established as the fundamental data for possible use at determining the composition ratio of potassium chlorides and aluminum in potassium chloroaluminate as input data for the development of a sensor of composition of chloroaluminate potassium.

scholarly journals Olive Fruit and Leaf Wastes as Bioactive Ingredients for Cosmetics—A Preliminary Study

Antioxidants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 245
Author(s):  
María de la Luz Cádiz-Gurrea ◽  
Diana Pinto ◽  
Cristina Delerue-Matos ◽  
Francisca Rodrigues
Keyword(s):  
Olive Oil ◽  
High Performance ◽  
Value Added ◽  
Bioactive Compound ◽  
In Vitro Assays ◽  
Oil Consumption ◽  
Cosmetic Ingredients ◽  
Bioactive Ingredients ◽  
Olive Industry

Olea europaea cultivar, native in the Mediterranean basin, has expanded worldwide, mainly due to the olive oil industry. This expansion is attributed to the benefits of olive oil consumption, since this product is rich in nutritional and bioactive compounds. However, the olive industry generates high amounts of wastes, which could be related to polluting effects on soil and water. To minimize the environmental impact, different strategies of revalorization have been proposed. In this sense, the aim of this work was to develop high cosmetic value added oleuropein-enriched extracts (O20 and O30), a bioactive compound from olive byproducts, performing a comprehensive characterization using high performance liquid chromatography coupled to mass spectrometry and evaluate their bioactivity by in vitro assays. A total of 49 compounds were detected, with oleuropein and its derivatives widely found in O30 extract, whereas iridoids were mainly detected in O20 extract. Moreover, 10 compounds were detected for the first time in olive leaves. Both extracts demonstrated strong antioxidant and antiradical activities, although O30 showed higher values. In addition, radical oxygen and nitrogen species scavenging and enzyme inhibition values were higher in O30, with the exception of HOCl and hyaluronidase inhibition assays. Regarding cell viability, olive byproduct extracts did not lead to a decrease in keratinocytes viability until 100 µg/mL. All data reported by the present study reflect the potential of industrial byproducts as cosmetic ingredients.

scholarly journals Production of Coconut Oil and Protein for Food and Cosmetic Ingredients

2021 ◽  
Vol 1143 (1) ◽  
pp. 012039
Author(s):  
Dianika Lestari ◽  
Amilah Ridho Rahmani ◽  
Danu Ariono
Keyword(s):  
Coconut Oil ◽  
Cosmetic Ingredients

scholarly journals New Framework for a Non-Animal Approach Adequately Assures the Safety of Cosmetic Ingredients – A Case Study on Caffeine

2021 ◽  
pp. 104931
Author(s):  
Dagmar Bury ◽  
Camilla Alexander-White ◽  
Harvey J. Clewell ◽  
Mark Cronin ◽  
Bertrand Desprez ◽  
...  
Keyword(s):  
Cosmetic Ingredients ◽  
New Framework

Performance of coatings containing treated silica fume in the corrosion protection of reinforced concrete

2018 ◽  
Vol 47 (4) ◽  
pp. 350-359 ◽  
Author(s):  
Nivin M. Ahmed ◽  
Mostafa G. Mohamed ◽  
Reham H. Tammam ◽  
Mohamed R. Mabrouk
Keyword(s):  
Reinforced Concrete ◽  
Silica Fume ◽  
Corrosion Protection ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Dual Function ◽  
Core Shell ◽  
Protection Efficiency ◽  
Content Type ◽  
Anticorrosive Pigments

Purpose This study aims to apply novel anticorrosive pigments containing silica fume-phosphates (Si-Ph), which were prepared using core-shell technique by covering 80-90 per cent silica fume (core) with 10-20 per cent phosphates (shell) previously, to play dual functions simultaneously as anticorrosive pigments in coating formulations and as an anticorrosive admixture in concrete even if it is not present in the concrete itself. Two comparisons were held out to show the results of coatings on rebars containing core-shell pigments in concrete, and concrete admixtured with silica fume can perform a dual function as anticorrosive pigment and concrete admixture. The evaluation of corrosion protection efficiency of coatings containing core-shell pigments and those containing phosphates was performed. Design/methodology/approach Simple chemical techniques were used to prepare core-shell pigments, and their characterization was carried out in a previous work. These pigments were incorporated in solvent-based paint formulations based on epoxy resin. Different electrochemical techniques such as open-circuit potential and electrochemical impedance spectroscopy were used to evaluate the anticorrosive efficiency of the new pigments. Findings The electrochemical measurements showed that concrete containing coated rebars with core-shell pigments exhibited almost similar results to that of concrete admixtured with silica fume. Also, the anticorrosive performance of coatings containing Si-Ph pigments offered protection efficiency almost similar to that of phosphates, proving that these new pigments can perform both roles as anticorrosive pigment and concrete admixture. Originality/value Although the new Si-Ph pigments contain more than 80 per cent waste material, its performance can be compared to original phosphate pigments in the reinforced concrete.

In vitro acute skin irritancy of 184 cosmetic ingredients using the validated EPISKIN model protocol

2008 ◽  
Vol 180 ◽  
pp. S110-S111
Author(s):  
José Cotovio ◽  
Marie-Hélène Grandidier ◽  
Damien Lelievre ◽  
Nathalie Alepee ◽  
Roland Roguet ◽  
...  
Keyword(s):  
Cosmetic Ingredients

SAR- and analogue based safety assessments of cosmetic ingredients

2013 ◽  
Vol 221 ◽  
pp. S229
Author(s):  
Thomas Petry ◽  
Daniela Jeronimo-Roque ◽  
Francesca Tencalla ◽  
Sanghamitra Mishra
Keyword(s):  
Cosmetic Ingredients ◽  
Safety Assessments

Aesthetic coatings for silver based alloys with improved protection efficiency

2011 ◽  
Vol 72 (1-2) ◽  
pp. 131-137 ◽  
Author(s):  
Sabrina Grassini ◽  
Emma Angelini ◽  
Yangwu Mao ◽  
Jelica Novakovic ◽  
Panayota Vassiliou
Keyword(s):  
Protection Efficiency
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