Dobrucka Renata, Pawlik Mikołaj, Szymański Marcin
Department of Non Food Products Quality and Packaging Development, Institute of Quality Science, Poznan University of Economics and Business, al. Niepodległości 10, 61-875 Poznan, Poland.
Center for Advanced Technologies, Adam Mickiewicz University in Poznan, ul. Uniwersytetu Poznańskiego 10, 61-614 Poznan, Poland.
Materials (Basel). 2025 Aug 31;18(17):4081. doi: 10.3390/ma18174081.
In the present study, pectin films with antioxidant activity were obtained in response to the increasing demand for active packaging systems related to the need for safe finished products with a long shelf life. To obtain the films, L. herb extract was used as the active agent. The samples with the highest extract contents of 20:80 2.0F and 80:20 2.0F (PA:PC ratio + wt.% extract) were characterized by a polyphenols content of 0.9067 ± 0.0184 [%]. They also showed the highest antioxidant activity, at ABTS = 1.79 ± 0.04 [mg/mL] and DPPH = 4.44 ± 0.10 [mg/mL]. Mechanical tests conducted showed that samples without extract addition, regardless of the pectin apple to citrus ratio, were characterized by similar values of mechanical parameters ( > 0.05). Spearman's rank correlation coefficients were used to demonstrate the strength and direction of the relationship between pairs of variables. Statistical analysis showed strong correlations between antioxidant indices and polyphenol content.
在本研究中，鉴于对具有长保质期的安全成品的需求，与活性包装系统相关的需求不断增加，从而获得了具有抗氧化活性的果胶薄膜。为了制备薄膜，将草本提取物用作活性剂。提取物含量最高的样品20:80 2.0F和80:20 2.0F（PA:PC比例+重量百分比提取物）的多酚含量为0.9067±0.0184 [%]。它们还表现出最高的抗氧化活性，ABTS = 1.79±0.04 [mg/mL]，DPPH = 4.44±0.10 [mg/mL]。进行的机械测试表明，不添加提取物的样品，无论果胶苹果与柑橘的比例如何，其机械参数值相似（>0.05）。使用斯皮尔曼等级相关系数来证明变量对之间关系的强度和方向。统计分析表明抗氧化指数与多酚含量之间存在强相关性。
