Drozłowska Emilia, Bartkowiak Artur, Trocer Paulina, Kostek Mateusz, Tarnowiecka-Kuca Alicja, Bienkiewicz Grzegorz, Łopusiewicz Łukasz
Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology Szczecin, Janickiego 35, 71-270 Szczecin, Poland.
Department of Commodity, Quality Assessment, Process Engineering and Human Nutrition, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology Szczecin, Papieża Pawła VI 3, 71-899 Szczecin, Poland.
Antioxidants (Basel). 2021 Feb 1;10(2):211. doi: 10.3390/antiox10020211.
The objective of the study was to investigate the application of flaxseed oil cake extract (FOCE) for oxidative stabilization of flaxseed oil in spray-dried emulsions. Two variants of powders with 10% and 20% of flaxseed oil (FO), FOCE, and wall material (maltodextrin and starch Capsul) were produced by spray-drying process at 180 °C. The oxidative stability of FO was monitored during four weeks of storage at 4 °C by peroxide value (PV) and thiobarbituric acid-reactive substances (TBARS) measurements. Additionally, the fatty acids content (especially changes in α-linolenic acid content), radical scavenging activity, total polyphenolics content, color changes and free amino acids content were evaluated. Obtained results indicated that FOCE could be an adequate antioxidant dedicated for spray-dried emulsions, especially with a high content of FO (20%). These results have important implications for the flaxseed oil encapsulation with natural antioxidant agents obtained from plant-based agro-industrial by product, meeting the goals of circular economy and the idea of zero waste.
本研究的目的是探讨亚麻籽饼提取物(FOCE)在喷雾干燥乳液中对亚麻籽油的氧化稳定作用。通过在180°C下进行喷雾干燥工艺,制备了含10%和20%亚麻籽油(FO)、FOCE以及壁材(麦芽糊精和淀粉胶囊)的两种粉末变体。通过测定过氧化值(PV)和硫代巴比妥酸反应性物质(TBARS),在4°C下储存四周期间监测FO的氧化稳定性。此外,还评估了脂肪酸含量(特别是α-亚麻酸含量的变化)、自由基清除活性、总多酚含量、颜色变化和游离氨基酸含量。所得结果表明,FOCE可能是一种适用于喷雾干燥乳液的抗氧化剂,尤其是对于高含量FO(20%)的乳液。这些结果对于用从植物基农工业副产品中获得的天然抗氧化剂对亚麻籽油进行包封具有重要意义,符合循环经济的目标和零废物理念。