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Tocopherol retention in oils aerated in glass and iron tubes
Author(s) -
Luckmann Frederick H.,
Melnick Daniel
Publication year - 1955
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02640334
Subject(s) - aeration , tocopherol , chemistry , adsorption , metal , isopropyl , chromatography , organic chemistry , vitamin e , antioxidant
Summary Aeration of vegetable oils according to a modified A.O.M. test, involving the substitution of iron tubes for the conventional glass tubes, results in a more rapid destruction of the tocopherols present. Isopropyl citrate esters, predominantly monoisopropyl citrate, greatly retard the rate of tocopherol loss by sequestering soluble iron and by protecting the oil against further tocopherol loss by minimizing the effect of contact metal catalysis. Adsorption of tocopherols on the metal wall is insignificant.