Jócsák Ildikó, Végvári György, Klász Kristóf, Andrássy-Baka Gabriella, Somfalvi-Tóth Katalin, Varga-Visi Éva
Department of Agronomy, Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Kaposvár Campus, Guba Sándor Street 40, H-7400, Kaposvár, Hungary.
Food and Wine Research Institute, Eszterházy Károly University, 6 Leányka Street, H-3300, Eger, Hungary.
Heliyon. 2023 Jul 15;9(7):e18358. doi: 10.1016/j.heliyon.2023.e18358. eCollection 2023 Jul.
Strawberry is a typical spring fruit, for which consumer demand is particularly high; however, information is scarce on the comparison of quality traits of strawberries of local and imported origin during household refrigeration storage. That is why we sought to answer the question of to what extent the quality of strawberries changes during 5 days of household refrigeration storage. The choice of methods was focused on fast and at the same time informative analytical methods: pH, total antioxidant capacity, and lipid oxidation. Furthermore, a non-invasive imaging technique: ultra-weak bioluminescence measurement was carried out along with the determination of fruit morphological (weight, height, width, and color) and analytical (antioxidant capacity and lipid oxidation) traits. The data indicate that the longer strawberries are cultivated in the same plantation, the smaller their fruit weight and the lower their fruit quality become. In addition, the results cast light on a controversial fact: despite the fact that the sample from the store had the finest appearance, as determined, its antioxidant capacity was the lowest for the duration of home refrigeration storage, indicating the lowest nutritional value.This was validated by the lipid oxidation levels, which were defined by the amount of malondialdehyde as well as by the rate of ultra-weak bioluminescence. The research underlines the exceptional value of local fruits over importand provides valuable information to customers, encouraging them to purchase strawberries from local farms in order to not only support the local economy but also to adopt a more health-conscious attitude. In addition, ultra-weak bioluminescence testing offers a non-invasive method for assessing fruit quality.
草莓是典型的春季水果，消费者对其需求特别高；然而，关于本地和进口草莓在家庭冷藏储存期间品质特征比较的信息却很少。这就是为什么我们试图回答草莓在家庭冷藏储存5天期间品质变化程度的问题。方法的选择侧重于快速且同时具有信息量的分析方法：pH值、总抗氧化能力和脂质氧化。此外，还进行了一种非侵入性成像技术：超微弱生物发光测量，同时测定了果实的形态特征（重量、高度、宽度和颜色）和分析特征（抗氧化能力和脂质氧化）。数据表明，草莓在同一种植园中种植的时间越长，其果实重量越小，果实品质越低。此外，研究结果还揭示了一个有争议的事实：尽管从商店购买的样本外观最好，但经测定，其在家庭冷藏储存期间的抗氧化能力最低，表明其营养价值最低。这一点通过脂质氧化水平得到了验证，脂质氧化水平由丙二醛的含量以及超微弱生物发光速率来定义。该研究强调了本地水果相对于进口水果的特殊价值，并为消费者提供了有价值的信息，鼓励他们从当地农场购买草莓，以便不仅支持当地经济，还能采取更注重健康的态度。此外，超微弱生物发光测试提供了一种评估果实品质的非侵入性方法。
