| Titre : |
Stabilisation and detoxification of henna (Lawsonia inermis L.) extract for hair dye cosmetics by spray-drying encapsulation |
| Type de document : |
texte imprimé |
| Auteurs : |
Ying Tang, Auteur ; Wendan He, Auteur ; Shuyan Yang, Auteur ; Lei Liu, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 439-450 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Cheveux -- Teinture
Colorants végétaux
Cosmétiques
Encapsulation
Extraction (chimie)
Henné -- Détoxication
Séchage par pulvérisation
Stabilité au stockage
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Henna (Lawsonia inermis L.) leaves have been widely used as a natural plant colorant for hair dyeing and body art. However, the utilisation of henna dye extract in commercial colour cosmetics is compromised by its potential harmful effects to humans. This study demonstrates that spray-drying encapsulation using maltodextrin and gum arabic as biocompatible polymeric carriers can be used as a promising strategy to detoxify henna dye extract while maintaining its hair dyeing efficiency for cosmetics. Henna extract-loaded microcapsules with an average particle size of 4.1 µm were prepared with an excellent encapsulation efficiency (98.4%) and a negative zeta potential (-34.4 mV). The morphology and physicochemical properties of the microcapsules were characterised by comparison with a spray-dried sample of neat henna extract. The in vitro toxicological results showed that the microencapsulation process significantly reduced the contact toxicity of henna extract towards human epidermal keratinocytes as well as to the eyes and skin. The encapsulated henna extract also exhibited improved storage stability at three different temperatures (4, 25 and 50°C) for 14 days. Furthermore, the microcapsules demonstrated satisfactory hair dyeing efficiency as natural colorants with good colour fastness towards light and washing. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Henna dye extraction - Spray-drying conditions - Characterisation of HE-loaded - Storage stability - Assessment of in vitro toxicity - Dyeing efficiency and colour fastness - Statistics
- RESULTS AND DISCUSSION : Microcapsules characteristics - Storage stability at different temperatures - In vitro toxicity - Hair dyeing efficiency and colour fastness |
| DOI : |
10.1111/cote.12433 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12433 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33376 |
in COLORATION TECHNOLOGY > Vol. 135, N° 6 (12/2019) . - p. 439-450
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