| Autor: |
Lai Quoc Dat, Nguyen Thi Ngoc Quyen |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2017, Vol. 1878 Issue 1, p1-8, 8p, 2 Diagrams, 3 Charts, 3 Graphs |
| Abstrakt: |
This paper focused on the application of nanofiltration (NF) for concentration of the roasted coffee extract in instant coffee processing. Three kinds of NF membranes were screened for separation capacity of total dry solid (TDS), polyphenols (PPs) and caffeine in roasted coffee extract and NF99 membrane showed the good performance for the NF of the extract. The crossflow NF with NF99 membrane at pilot scale was investigated for technical assessment of concentration of roasted coffee extract. Maximum theoretical concentration was estimated as 6.06. Recovery yields of TDS, PPs and caffeine were higher than 70% at 4.4 of concentration factor. The content of TDS in accumulative permeate was lower than 2.0 g/L. The fouling of NF was also solved by the suitable cleaning procedure with recovery index being 97.7%. Results of research indicate that it is feasible to apply NF for concentration of the roasted coffee extract in instant coffee production. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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