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Continuous Supercritical Fluid Processing of Anhydrous Milk Fat in a Packed Column
Author(s) -
LIM S.,
RIZVI S. S. H.
Publication year - 1995
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1995.tb06254.x
Subject(s) - anhydrous , raffinate , chemistry , supercritical fluid , chromatography , fractionation , fraction (chemistry) , packed bed , supercritical carbon dioxide , organic chemistry , extraction (chemistry)
A continuous supercritical carbon dioxide processing system was designed, built and operated to investigate its performance for fractionation of anhydrous milk fat (AMF). Packed columns showed mass transfer efficiencies five times greater than a spray column, Short‐ and medium‐chain fatty acids were concentrated in the extract fractions and their amounts decreased as separation pressure increased. The ratio of unsaturated to saturated fatty acids in the raffinate fraction was 0.68 compared to 0.52 in the original AMF. The proportions of low‐melting triglycerides in the range —42 to 15°C were greater in the extract fractions (44–72%) compared to the original AMF (29%).