[article]
| Titre : |
Raw skin wastes - Used to prepare a collagen fibre adsorbent for the chromatographic separation of flavonoids |
| Type de document : |
texte imprimé |
| Auteurs : |
Zhang Qixian, Auteur ; Li Xinxin, Auteur ; Li Juan, Auteur ; Wenhua Zhang, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 93-98 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Absorbants et adsorbants
Adsorption
Chromatographie
Collagène
Cuirs et peaux -- Déchets
Flavonoïdes
Gel de silice
Matériaux poreux
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Séparation (technologie)
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
To explore the new approach of value-added utilization of tannery skin wastes, a novel column packing material, collagen fibre adsorbent (CFA), was prepared by using skin wastes as raw material. In the present study, the separation application of CFA on flavonoids and its comparison with other current packing materials (silica gel, polyamide, D101 macroporous resin and Sephadex LH-20) were investigated. Rutin and kaempferol were selected as model flavonoids. Static adsorption indicated that the adsorption capacity of CFA to rutin and kaempferol was different, and the extent of adsorption of kaempferol was lower because it has fewer hydroxyl groups/hydrogen-bond reaction sites. In CFA column chromatography separation, the mixture of rutin and kaemoferol could be well separated by stepwise elution with 90% and 50% aqueous ethanol solutions, and their recoveries were 90.02% and 94.60%, respectively.
However, in comparison with CFA, rutin and kaempferol could not be well separated and recovered by using silica gel, polyamide and D101 macroporous resin columns. In addition, the cost of CFA is much lower, especially compared with Sephadex LH-20. Therefore, CFA has the potential to be applied as a packing material for separation of flavonoids. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials and equipments - Preparation of CFA - Static adsorption capability of CFA
- RESULTS AND DISCUSSION : Characterization of CFA by SEM analysis - Static adsorption capability of CFA - Chromatographic separation performance of CFA - Price estimation of CFA |
| En ligne : |
https://drive.google.com/file/d/1qDjmuTspuQTaf7gyPhUobxdXpL6fZ3gu/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21528 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 98, N° 3 (05-06/2014) . - p. 93-98
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