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Effect of Heating Pretreatment and Drying Temperature on the Characteristics of Dried Black Soldier Fly (Hermetia illucens) Larvae Cover

Effect of Heating Pretreatment and Drying Temperature on the Characteristics of Dried Black Soldier Fly (Hermetia illucens) Larvae

Open Access
|Nov 2025

Abstract

Black soldier fly larvae (BSFL) offer significant environmental and nutritional benefits, including organic waste reduction and utility as a supplemental feed ingredient. This study investigated the effects of heating pretreatment and drying temperature on the physicochemical characteristics of dried BSFL. A factorial experimental design was employed, combining two pretreatment methods (immersion in hot water [90–95 °C] and steaming) with three drying temperatures (42 °C, 50 °C, 58 °C), yielding six treatment groups with triplicate samples. Analysed parameters included yield, colour, moisture content, ash content, protein content, and lipid content. Drying at 58 °C with hot water immersion pretreatment yielded optimal results: the highest protein content (42.203% ±0.381%), lowest moisture content (2.427% ±0.131%), and favourable lipid (27.18% ±2.71%) and ash (14.833% ±1.81%) levels, alongside a yield of 25.437% ±0.150%. Principal component analysis (PCA) found a sample distribution pattern into 3 clusters with a cumulative variance between PC1 and PC2 of 82.79%. These findings demonstrate that pretreatment and temperature selection critically influence dried BSFL quality, with hot water immersion and higher drying temperatures enhancing nutrient retention and process efficiency.

Language: English
Page range: 220 - 228
Published on: Nov 3, 2025
Published by: Slovak University of Agriculture in Nitra
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 Sriharti, Ari Rahayuningtyas, Diang Sagita, Pradeka Brilyan Purwandoko, Yogi Himawan, Adam Robisalmi, Yose Rizal Kurniawan, Arie Sudaryanto, published by Slovak University of Agriculture in Nitra
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.