Changes due to high oxygen and high carbon dioxide atmospheres on the general quality and the polyphenolic profile of strawberries
| Autor: | Cecilia Lorena Fenoglio, Mary Ann Lila, Maria Elida Pirovani, María Paula Méndez-Galarraga, Mary H. Grace, Franco Van de Velde |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Otras Ingenierías y Tecnologías
Chemistry INGENIERÍAS Y TECNOLOGÍAS Horticulture ANTHOCYANINS VITAMIN C Alimentos y Bebidas High oxygen Polyphenol Modified atmosphere Environmental chemistry ABIOTIC STRESS High carbon dioxide ELLAGITANNINS PHENOLIC ACIDS Agronomy and Crop Science Food Science MODIFIED ATMOSPHERE PACKAGING |
| Popis: | The aim of this work was to study and model the effects of refrigerated storage with high O2 and high CO2 atmospheres (70 kPa O2 + 20 kPa CO2 and 90 kPa O2 + 10 kPa CO2) on microbial growth, general quality attributes, and the polyphenolic compound profile of fresh strawberries. The storage of samples in 70 kPa O2 + 20 kPa CO2 controlled microbiological decay and slightly affected soluble solids and pH values for 20 d at 5 °C. Moreover, vitamin C and proanthocyanidin contents of these samples were kept almost constant throughout the storage period. Samples in 90 kPa O2 + 10 kPa CO2 controlled microbiological decay for 12 d at 5 °C, soluble solids and pH values were slightly affected, and vitamin C and proanthocyanidin contents experienced up to 15% decrease during this period. However, anthocyanins underwent a substantial increase during the first 3–5 d of storage in these samples. The highest anthocyanin accumulations occurred for pelargonidin-3-O-glucoside, pelargonidin-3-O-rutinoside, and pelargonidin-3-O-acetylglucoside, which increased by 68%, 132%, and 167%, respectively over their initial values at 5 d. Thereafter, anthocyanins content decreased gradually or remained even higher than their initial values at 12 d. This behavior was associated with a physiological response to stress and was not seen for strawberries stored at 70 kPa O2 + 20 CO2, probably due to its higher CO2 concentration which was deleterious for anthocyanin stability. Flavonols, phenolic acids, and ellagitannins also experienced increases up to 130% at 5–12 d of storage in samples exposed to both atmospheres. The changes in general quality attributes were fitted with zero or first-order kinetics, and changes in individual phenolic compounds were adequately fitted with a consecutive reaction mechanism kinetic model. Fil: Van de Velde, Franco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina Fil: Méndez Galarraga, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina Fil: Grace, Mary H.. North Carolina State University; Estados Unidos Fil: Fenoglio, Cecilia Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina Fil: Lila, Mary Ann. North Carolina State University; Estados Unidos Fil: Pirovani, Maria Elida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina |
| Databáze: | OpenAIRE |
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