Alfalfa Carotenoids, Xanthophylls in Fresh and Dehydrated Alfalfa

Abstract

from the technical grade monostearin absorb less moisture than do the products made from the purer or molecularly distilled monostearin.Comparison of Permeability of Films of Acetostearin Products and Other Types of Coating Materials. There apparently are no data in the literature on the permeability of fats and fatlike products to moisture, but data are available for many other organic compounds. To provide a basis for comparing acetostearin products and other organic compounds, some of the literature data are reproduced in Table V7. The permeability constants shown were recalculated to conform to the dimensions used in the present investigation.It is evident from Tables III and V that the permeability constant for the acetostearin films is less than that of cellulose acetate and only slightly greater than that of nylon, ethylcellulose, polystyrene, and soft vulcanized rubber.

Pigmentation Potency of Xanthophyll Sources

“…However, it must be emphasized that different methods of analysis were used for the alfalfa and corn products. Neither method gives an exact measure of the total weight of xanthophylls in the respective products because of the many different xanthophylls present in each product (Bickoff et al, 1954;Quackenbush et al, 1961). The new WRRL procedure slightly underestimates the total weight of xanthophylls in alfalfa by about 10% since the neoxanthin and carotenoid oxidation products (polyoxy fraction) are partly discounted.…”

Supercritical CO2 Extraction of Carotene and Lutein from Leaf Protein Concentrates

“…Furthermore, Bickoff et al (1954) reported that the total amount of violaxanthin and neoxanthin represented over 50% of the total xanthophylls found in fresh alfalfa. However, no significant amounts of these carotenoids were found in the untreated LPC.…”

Broiler Pigmentation Potency of Neoxanthin and Violaxanthin Relative to Lutein

“…A recent extensive xanthophyll analysis of fresh and dehydrated alfalfa meal by Livingston et al (1968) has shown that lutein plus its cis isomers or derivatives comprise a considerably greater portion of the total xanthophylls than reported earlier by Bickoff et al (1954). In the more recent work lutein plus its cis isomers or derivatives comprised 82% of the xanthophylls measured while neoxanthin and violaxanthin amounted to only 18%.…”

“…The lutein, neoxanthin and violaxanthin used in this study were isolated from an extract of fresh alfalfa by a procedure similar to that of Bickoff et al (1954). Briefly, the procedure consisted of the preparation of an acetone extract, transfer of the pigments to hexane, and chromatography of the hexane extract on MgO-Celite (1-1).…”