[article]
| Titre : |
Odour absorption from activated zinc ricinoleate |
| Type de document : |
texte imprimé |
| Auteurs : |
Yana Bykov, Auteur ; Swetlana Vogt, Auteur ; Martina Spiegel, Auteur ; Maximilian Franke, Auteur ; Martin Husmann, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 124-128 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Absorption
Cosmétiques
Déodorants
Formulation (Génie chimique)
Odeurs -- Lutte contre
Peau -- Soins et hygiène
Ricinoléate de zinc
Tests d'efficacité
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
Smell is one of the five most important senses (sight, hearing, touch and taste), allowing us to perceive life in its entirety. The perception of smell is a very complex process including the excitation of specialised receptors located in the human nasal cavity, and signal transmission to the brain. Smells are caused by volatile chemical compounds, which can often be recognised even when present in low concentrations.
Odour plays an important role in our lives. It evokes emotions and memories, changes cognitive and physical abilities, and of course affects relationships between people. For this reason, the problem of odours has been preoccupying scientists and industrial developers for many years.
We have to consider the subjective perception when talking about pleasant and unpleasant odours. Acceptance of unpleasant odours can be determined by averaging the opinion of the population. The main source of malodours are sulfur and nitrogen containing molecules, such as allicin – garlic, felinine - cat urine, hydrogen sulfide - rotten eggs, ammonia – urine, indole and skatole – fecal, cadaverine and putrescine – rotting flesh, nicotine – tobacco and so on. In addition, there are other odorous substances that are responsible, for example for smell of sweat - isovaleric acid, rancid oil - butanoic acid, tobacco smoke - acetaldehyde etc. In everyday life the number of unpleasant odours originated from non-sulfur and nonnitrogen containing molecules is very limited.
The most common solution to 'change' unpleasant odours is the use of fragrances. Such mixtures release a pleasant scent and are able to cover unpleasant odours. This masking is not always effective and after dispersing the fragrance, unpleasant odour molecules will be predominant in the atmosphere again. |
| Note de contenu : |
- Odour absorbers
- Zinc ricinoleate
- Zinc ricinoleate activation
- A series of water-soluble odour absorber concentrates
- Performance tests
- Application fields
- Fig. 1 : Chemical formula of zinc ricinoleate
- Fig. 2 : Three-dimensional model of zinc ricinoleate molecule
- Fig. 3 : Molecular simulation of the interaction of zinc ricinoleate and MGDA
- Fig. 4 : Self-assembly of the complex on the surface of the solution
- Fig. 5 : Absorption of diethylamine (top) and ethanethiol (bottom) by 30% diluted solution of Polyfix ZRC 30 MT
- Fig. 6 : Absorption of hydrogen sulfide by two market products without and with the addition of 15% Polyfix ZRC 30 MT
- Fig. 7 : Efficiency (%) of 5% solutions of Polyfix ZRC 25 GP, Polyfix ZRC 30 MT and competitor's product regarding absorption of ammonia, hydrogen sulfide and acetic acid
- Fig. 8 : Efficiency (%) of deodorant roll-on "Perfect Polyfix" without and with Polyfix ZRC 25 GP and two market products containing zinc ricinoleate regarding absorption of ammonia, hydrogen sulfide and acetic acid
- Fig. 9 : Absorption of artificial sweat odour by 10% solution of Polyfix ZRC 25 GP. (Intensity : 6 - extremely strong, 5- very strong, 4 – strong, 3 – distinct, 2 - weak, 1 – very weak)
- Fig. 10 : Statistical survey with 24 male and female subjects about the effect of diluted Polyfix ZRC 30 MT on various odours - clockwise arrangement of odour intensity
- Table 1 : The Polyfix products range
- Table 2 : Basic formulation of deodorant roll-on "Perfect Polyfix" with Polyfix ZRC 25 GP |
| En ligne : |
https://drive.google.com/file/d/1AjmQIAh89axSuAZt1MRHsuDv-NjxWL8K/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33961 |
in PERSONAL CARE EUROPE > Vol. 14, N° 2 (04/2020) . - p. 124-128
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