ETHANOL ACCUMULATION PATTERNS IN DIFFERENT HORTICULTURAL COMMODITIES IN RESPONSE TO ENRICHED CO2 ATMOSPHERES

L.L. Yanez, P.E. Mercado, K.E. Yahia, M.A. Armella
Our main objective was to determine whether the responses of several horticultural products to increased CO2 levels in their storage atmospheres could be grouped by their ethanol accumulation patterns. Sixteen different products were exposed to air without CO2 or containing 30% CO2. Ethanol concentration was measured by gas chromatography and sensory tests every 12h for 3 days. Three main accumulation patterns were distinguished by regression analysis: linear, steady accumulation throughout the experiment (e.g., cucumber); positive curve, very fast initial ethanol accumulation, followed by a plateau or even a decrease in ethanol content (e.g., citrus); and negative curve, very low or zero ethanol accumulation until a threshold was crossed, after which ethanol increased rapidly (e.g., apple). Patterns were confirmed by linear or quadratic regression analysis.
Yanez, L.L., Mercado, P.E., Yahia, K.E. and Armella, M.A. (2001). ETHANOL ACCUMULATION PATTERNS IN DIFFERENT HORTICULTURAL COMMODITIES IN RESPONSE TO ENRICHED CO2 ATMOSPHERES. Acta Hortic. 553, 657-661
DOI: 10.17660/ActaHortic.2001.553.158
https://doi.org/10.17660/ActaHortic.2001.553.158
controlled atmospheres, CO2 treatment, ethanol accumulation
English
553_158
657-661

Acta Horticulturae