| Autor: |
Ioannis Mourtzinos, Nikolaos Menexis, Dimitrios Iakovidis, Dimitris P. Makris, Athanasia Goula |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Recycling, Vol 3, Iss 2, Pp 15-0 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2313-4321 |
| DOI: |
10.3390/recycling3020015 |
| Popis: |
The valorization of solid waste hemp (Cannabis sativa L.) by a non-conventional method is presented in this article. Hemp polyphenols were extracted using aqueous solutions of 2-hydroxypropyl-β-cyclodextrin as an eco-friendly extraction solvent. Cyclodextrins (CD’s) are known to enhance the extraction of polyphenols in water by forming water soluble inclusion complexes. The process was optimized by implementing a response surface methodology (RSM) that took into consideration the following independent variables: CD concentration (CCD), solid-to-liquid ratio (S/L), and temperature (T). The assessment of the extraction model was based on two responses: the total polyphenol yield (YTP) and the antiradical activity (AAR). The optimum operating conditions were found to be: CD concentration, 32.1% (w/v); solid/solvent ratio, 1/15.2 g/mL; and extraction temperature, 28 °C. Different kinetic models were employed to fit with experimental data and the Peleg’s model was successfully developed for describing the mechanism of extraction under different processing parameters. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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