Table 3. Comparison between Zeaxanthin, β-Carotene, and Their Isomers in the Raw and I Residual Extracts.

peak number	retention time (min)	peak identification	raw biomass (mg/gextract)	I residual biomass (mg/gextract)
5	7.668	zeaxanthin isomer I	1.03	0.64
6	8.057	zeaxanthin	21.37	11.79
7	9.826	zeaxanthin isomer II	2.84	1.69
13	18.701	β-carotene	0.20	0.44
14	18.892	β-carotene isomer	0.04	0.07