RESULTS AND DISCUSSION
Extraction of plant material, such as green leaves, is well known but is still subjected to adjustments. Si16 Therefore, we have described two methods; one quickly accomplished using acetone, and another, less expedient, using acetone and n hexane. As these two solvents differ in polarity, their extracts will also reflect this, leaving the acetone extracts richer in xanthophylls, that is, the more polar compounds and in some cases less rich in p-carotene. It is also to mix acetone and n-hexane in the extraction process. All types of extracts are best used fresh; however, n-hexane extracts have been used for this purpose after months of storage in refrigerator. In all cases, it is important to avoid residual water in the extracts. After a few days, signs of degradation can appear more in the extract than in the hexane extract. This degradation was observed in chromatograms as an increase in pheophytin due to