Insect production for food and feed purposes is rapidly emerging in Europe, in many cases relying on existing processing methods for blanching, freezing, drying, fractionating, but also seeking for more efficient and beneficial biomass treatment methods. Current study is aimed to explore the application of Pulsed electric fields (PEF) pretreatment of insect biomass (Hermetia illucens) for drying and oil extraction enhancement. The study demonstrates an increase in the drying rate of larvae pre-treated with PEF at 2 and 3 kV/cm; 5, 10 and 20 kJ/kg wet basis. No effect on fatty indices and amino acids profile were determined, but more free total amino acids especially at PEF with E = 2 kV/cm and 20 kJ/kg, were identified in press cake after pressing. Results from this study show, that PEF could be used as a pre-treatment before drying of insect mass to increase the drying rate or to decrease the drying time and the content of functional ingredients under gentle conditions. Slight increase in the oil yield after PEF treatment allows to propose this technique for oil extraction improvement.

在欧洲，以食品和饲料为目的的昆虫生产正在迅速兴起，在许多情况下，它们依赖于现有的加工方法来进行烫漂，冷冻，干燥，分馏，但也寻求更有效和有益的生物质处理方法。当前的研究旨在探索脉冲电场（PEF）预处理昆虫生物量（Hermetia illucens）的应用）用于干燥和提油。研究表明，用PEF预处理的幼虫的干燥速率在2和3 kV / cm时增加；5、10和20 kJ / kg湿基。没有测定对脂肪指数和氨基酸谱的影响，但是在压榨后的压滤饼中发现了更多的游离总氨基酸，特别是在PEF下，E = 2 kV / cm和20 kJ / kg。这项研究的结果表明，在温和条件下，PEF可以用作昆虫团干燥之前的预处理，以提高干燥速率或减少干燥时间和功能成分的含量。PEF处理后，石油收率略有增加，因此可以提出这项技术来提高石油采收率。