Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| Adsorption characteristics of chitooligosaccharides onto activated charcoal in aqueous solutions | |
| Yu Yu1; Li Kecheng2,3 | |
| 2019-10-19 | |
| Source Publication | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| ISSN | 2096-5508 |
| Pages | 9 |
| Corresponding Author | Li Kecheng(lkc@qdio.ac.cn) |
| Abstract | To investigate the adsorption characteristics of chitooligosaccharides in solution onto activated charcoal, we studied the optimal adsorption conditions and the adsorption mechanisms of the chitooligosaccharides onto activated charcoal, which will greatly promote the application of activated charcoal in the chitooligosaccharides separation and purification. We studied the effects of particle size of activated charcoal, pH of solution, contact time, temperature, and initial concentration of chitooligosaccharides on the adsorption behavior in batch mode experiments. Activated charcoal in fine particle size showed a high uptake of chitooligosaccharides. Weak alkaline solution (pH 8-9) was the most favorable to the adsorption. The adsorption equilibrium after 60 min was established, which followed a pseudo-second-order kinetic model. The adsorption capacity (Q(max)) reached 0.195 g/g (chitooligosaccharides/activated charcoal) at 298 K. The adsorption was temperature-insensitive, and the adsorption isotherms could be best described by the Langmuir equation. Chitooligosaccharides adsorbed on activated charcoal could be desorbed in 50% ethanol solution in combination with an acidic condition (pH 2), reaching desorption efficiency of 96.0%. These findings are of great significance for the production and purification of amino oligosaccharides including chitooligosaccharides using activated charcoal. |
| Keyword | chitooligosaccharide adsorption activated charcoal kinetics isotherm |
| DOI | 10.1007/s00343-019-8327-2 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41976096] ; National Key R&D Program of China[2018YFC0311305] ; Open Fund of CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences[KLMEES201805] ; Talent Research Foundation of Qingdao Agricultural University[1114347] |
| WOS Research Area | Marine & Freshwater Biology ; Oceanography |
| WOS Subject | Limnology ; Oceanography |
| WOS ID | WOS:000491530200001 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/163432 |
| Collection | 实验海洋生物学重点实验室 |
| Corresponding Author | Li Kecheng |
| Affiliation | 1.Qingdao Agr Univ, Marine Sci & Engn Coll, Qingdao 266109, Shandong, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Shandong, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Drugs & Bioprod, Qingdao 266237, Shandong, Peoples R China |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yu Yu,Li Kecheng. Adsorption characteristics of chitooligosaccharides onto activated charcoal in aqueous solutions[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2019:9. |
| APA | Yu Yu,&Li Kecheng.(2019).Adsorption characteristics of chitooligosaccharides onto activated charcoal in aqueous solutions.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,9. |
| MLA | Yu Yu,et al."Adsorption characteristics of chitooligosaccharides onto activated charcoal in aqueous solutions".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2019):9. |
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