Abstract
SUMMARYStability of orange aroma solutions from Valencia oranges grown in Arizona, California and Florida was studied at storage temperatures of 0, 10, 20, 34 and 70°F. Samples stored in 10‐ml Pyrex glass screw‐capped vials lost aroma strength and fresh orange character rapidly at 70 and 34°F. Aroma strength as measured by threshold determinations remained fairly constant at 0 and 20°F for up to 1 year. Significant changes in aroma character, however, were observed within 6 months and 1 year at 20 and 10°F, respectively. At 0°F, fresh orange aroma was maintained without significant change for up to 88 weeks. The most significant change indicated by GLC headspace analysis was almost complete loss of limonene in samples held at 70°F for 9 weeks or more. Aroma strength and character during storage at 70°F were preserved by sealing in glass tubes and storing in the dark.
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