Insects, like the black soldier fly, hold immense promise as a sustainable protein and fat source for animal feed. However, to optimize their value, we need to understand how drying techniques affect their nutritional quality and safety. In this blog, we share the exciting findings of a research project by Mobius Farms, supported by AgriFutures Australia. Their aim was to identify low-cost drying methods that would enhance black soldier fly larvae for small-scale producers, revolutionizing animal nutrition.
The Challenge
Small-scale producers face limited resources when it comes to drying techniques for black soldier fly larvae. AgriFutures Australia recognized this challenge and provided a research grant to investigate cost-effective methods. They wanted to develop solutions that would benefit the entire industry.
The Plan
Under the guidance of expert researchers, including Ishaya Gadzama, Mobius Farms compared four drying methods: high-temperature oven drying (HTD), microwave drying (MWD), freeze-drying (FD), and low-temperature air drying (LTD). The goal was to find the most efficient techniques for moisture removal, energy usage, appearance, and sensory appeal.
The Findings
The study revealed that HTD and MWD were the most effective and efficient drying methods. They not only removed moisture and saved energy but also resulted in visually appealing larvae. Importantly, the protein content remained consistent across all drying methods. However, LTD-dried larvae had higher lipid and energy levels.
Ensuring Safety and Quality
Mobius Farms prioritised the safety and quality of larvae-based feed products. By blanching the larvae in hot water (90°C), they reduced microbial populations to meet pet food standards. Further drying processes reduced microbial load, ensuring safety and quality.
They’re excited to present our groundbreaking findings at the Recent Advances in Animal Nutrition – Australia (RAAN-A) Conference in July 2023. This prestigious event will showcase the immense potential of black soldier fly larvae as animal feed.
Empowering Small-Scale Producers
To empower small-scale producers, there’s a simplified fact sheet on the AgriFutures website. This resource summarises the research, helping producers maximize the benefits of black soldier fly larvae in animal feed.
