Concha-Meyer Anibal, Eifert Joseph D, Williams Robert C, Marcy Joseph E, Welbaum Gregory E
Food Science and Technology Department, Virginia Tech, 1230 Washington Street SW, Blacksburg, VA 24061, USA; Centro de Estudios en Alimentos Procesados (CEAP), Avenida San Miguel 3425, 3480137 Talca, Chile.
Food Science and Technology Department, Virginia Tech, 1230 Washington Street SW, Blacksburg, VA 24061, USA.
Int J Food Sci. 2015;2015:164143. doi: 10.1155/2015/164143. Epub 2015 Jan 15.
Fresh blueberries are commonly stored and transported by refrigeration in controlled atmospheres to protect shelf life for long periods of storage. Ozone is an antimicrobial gas that can extend shelf life and protect fruit from microbial contamination. Shelf life of fresh highbush blueberries was determined over 10-day storage in isolated cabinets at 4°C or 12°C under different atmosphere conditions, including air (control); 5% O2 : 15% CO2 : 80% N2 (controlled atmosphere storage (CAS)); and ozone gas (O3) 4 ppm at 4°C or 2.5 ppm at 12°C, at high relative humidity (90-95%). Samples were evaluated for yeast and molds growth, weight loss, and firmness. CAS and O3 did not delay or inhibit yeast and molds growth in blueberries after 10 days at both temperatures. Fruit stored at 4°C showed lower weight loss values compared with 12°C. Blueberries stored under O3 atmosphere showed reduced weight loss at 12°C by day 10 and loss of firmness when compared to the other treatments. Low concentrations of ozone gas together with proper refrigeration temperature can help protect fresh blueberries quality during storage.
新鲜蓝莓通常通过在可控气氛中冷藏来储存和运输，以延长其在长期储存期间的保质期。臭氧是一种抗菌气体，能够延长保质期并保护水果免受微生物污染。在4°C或12°C的隔离柜中，于不同气氛条件下（包括空气（对照）；5%氧气：15%二氧化碳：80%氮气（可控气氛储存（CAS））；以及在4°C时为4 ppm或在12°C时为2.5 ppm的臭氧气体（O3），相对湿度较高（90 - 95%）），对新鲜高丛蓝莓的保质期进行了为期10天的测定。对样品进行了酵母和霉菌生长、重量损失以及硬度的评估。在两个温度下储存10天后，CAS和O3均未延迟或抑制蓝莓中酵母和霉菌的生长。与12°C相比，4°C储存的水果重量损失值更低。与其他处理相比，在O3气氛下储存的蓝莓在12°C时到第10天重量损失减少，但硬度下降。低浓度的臭氧气体与合适的冷藏温度相结合有助于在储存期间保护新鲜蓝莓的品质。
