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Chromogenesis in stored carrots
Author(s) -
Booth V. H.
Publication year - 1951
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740020806
Subject(s) - xanthophyll , pigment , carotenoid , fraction (chemistry) , food science , chemistry , carotene , botany , horticulture , biology , chromatography , organic chemistry
Freshly harvested carrots were stored at about 6°c. in a closed tin box. Loss of weight and mould growth were negligible. From time to time tiny cylinders were removed from each carrot and total fat‐soluble pigment was extracted and estimated colorimetrically. This pigment increased during storage. The increase, which was unrelated to variety, age or initial pigmentation, reached a maximum of 11% ±3.3 in about 60 days and declined thereafter. The carotenol (‘xanthophyll’) fraction increased much more than the carotene fraction. No evidence was found for the conversion of any carotenoid pigment into a deeper one and the conclusion is reached that a colourless substance is converted into a coloured one.