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Preparation and Chemical Composition of Orange Oil Concentrates
Author(s) -
VORA J. D.,
MATTHEWS R. F.,
CRANDALL P. G.,
COOK R.
Publication year - 1983
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.1365-2621.1983.tb09190.x
Subject(s) - chemistry , orange (colour) , flavor , chemical composition , distillation , chromatography , food science , organic chemistry
Flavor and color concentrates were prepared by a vacuum distillation process from cold pressed Valencia and midseason orange oils and were analyzed quantitatively by gas chromatography. Twenty‐five major and minor constituents were identified by mass spectrometry. The influence of the concentration process on oxygenated flavor compounds, primarily aldehydes and alcohols, was evaluated. Aldehydes and color values were determined by chemical and spectrophotometric methods. When compared with midseason orange oils, 25–35% higher concentration of oxygenated flavor compounds and of total aldehydes were found in Valencia orange oils. Midseason oils had 20–30% higher color values when compared with Valencia oils. Cold pressed oils concentrated to 25‐fold had an increase in color value of 20‐fold, while the concentration of oxygenated flavor compounds increased about 10 times.