“…In the more recent methods adsorbents have been employed for the removal of chlorophyll and xanthophylls. Thus, calcium hydroxide (6) and activated carbon black (4) have been advocated for this purpose. The ideal adsorbent should adsorb the carotene weakly, or not at all, it should have a strong adsorptive affinity for chlorophyll and xanthophylls, it should be inexpensive, and it should be regenerated easily for further use.…”