Effect of Sulphur Dioxide and Storage Temperature on the Sensory Properties of Clarified Apple Juice
Autor: | David A. Heatherbell, Cindy Lederer, J. H. Flores, Mina R. McDaniel |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Journal of Food Science. 55:728-730 |
ISSN: | 1750-3841 0022-1147 |
DOI: | 10.1111/j.1365-2621.1990.tb05216.x |
Popis: | Red Delicious apple juice was processed by ultrafiltration (UF) with SO2 (minimum oxidation) and without SO2 (maximum oxidation) and stored for 12 months at 2°C or 20°C. After storage, a trained panel evaluated the juices using descriptive analysis. The treatments (±SO2 2°C and 20°C) were analyzed for pH, total acidity, soluble solids, free SO2, and total phenols. A sharp decline in total phenols in the treatments without SO2 indicated that oxidation had occurred. Apple juice with minimum oxidation (+ SO2) was scored significantly higher in fresh apple aroma than the oxidized juice (-SO2). Juice stored at 20°C was significantly less estery and stronger in chemical off-odor than juice stored at 2°C. |
Databáze: | OpenAIRE |
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