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Table 1 Test to determine suitable solvent for lutein and zeaxanthin extraction and purification

From: Quantification and purification of lutein and zeaxanthin recovered from distillers dried grains with solubles (DDGS)

Solvent Wt. of kemin sample (mg) Vol. of solvent (L) Concentration lutein (mg/L) Concentration zeaxanthin (mg/L) Yield lutein (%) Yield zeaxanthin (%)
Ethanol 10.1 0.02 77.03 4.34 15.25 0.86
Ethyl acetate 9.8 0.02 71.76 4.16 14.64 0.85
Methanol 10 0.02 50.34 2.81 10.07 0.56
Acetonitrile 9.8 0.02 43.2 2.38 8.82 0.49
Water 9.8 0.02 38.88 2.19 7.93 0.45
  1. Lutein and zeaxanthin were most soluble in ethanol