FIELD: beverage industry.
SUBSTANCE: group of inventions relates to tea and coffee industry. The method for removing caffeine from the solution includes the following steps. The solution containing caffeine is contacted with a caffeine-absorbing material containing a cross-linked polymer and a caffeine adsorbent bound to the cross-linked polymer. The crosslinked polymer contains an alginate and a crosslinker, while the crosslinker is a polyvalent ion, and the crosslinked polymer is a crosslinked hydrogel. The contact of the solution takes place over a period of time and under conditions sufficient for the adsorption of caffeine, with caffeine removal from the solution. Also proposed are a caffeine-absorbing material, a caffeine-absorbing system, and a decaffeination system.
EFFECT: group of inventions provides an effective and fast method for removing caffeine from solutions, which takes from 1 to 60 minutes.
18 cl, 6 dwg, 14 tbl, 10 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHODS AND SYSTEMS OF DECAFFEINATION | 2015 |
|
RU2713708C2 |
| HIGH-QUALITY COMPOSITE ADSORBENTS WITH CORE-IN-COATED COMPONENT FOR VSA / VPSA / PSA SYSTEMS | 2019 |
|
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| ADSORBENT COMPOSITION, METHOD OF ITS PRODUCTION AND USE | 2017 |
|
RU2739923C2 |
| FLEXIBLE ADSORBING ITEMS | 2005 |
|
RU2380153C2 |
| POLYMER SYSTEM WITH SIZE ADSORPTION SELECTIVITY | 2011 |
|
RU2590225C2 |
| METHOD FOR RECOVERING CAFFEINE | 0 |
|
SU1056875A3 |
| METHOD FOR DEFINITION OF CAFFEINE CONTENT IN TEA AND COFFEE | 2009 |
|
RU2404428C1 |
| HIGHLY EFFICIENT CARBON ADSORBENTS | 2019 |
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RU2762278C1 |
| DRAPED ADSORBING SANITARY TOWEL | 2005 |
|
RU2377966C2 |
| CARBON DIOXIDE SORBENTS FOR CONTROLLING INDOOR AIR QUALITY | 2016 |
|
RU2712540C2 |
