Modelling and optimal control of growth, energy, and resource dynamics of Hermetia illucens in mass production environment

Padmanabha, Murali; Kobelski, Alexander; Hempel, Arne-Jens; Streif, Stefan

doi:10.1016/j.compag.2023.107649

Cited by 8 publications

(2 citation statements)

References 33 publications

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“…Efforts to understand and enhance mass rearing typically focus on investigating the effects of fixing parameters such as feed or temperature at a constant level ( Nayak et al, 2024 ). While some aspects of automation have been investigated ( Kröncke et al, 2020 ), there is limited work on dynamic modeling of insect rearing and subsequent dynamic process optimization and control Padmanabha et al (2023) .…”

Section: Introductionmentioning

confidence: 99%

Model-based process optimization of black soldier fly egg production

Kobelski,

Hempel,

Padmanabha

et al. 2024

Front. Bioeng. Biotechnol.

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Black soldier fly (BSF) larvae (Hermetia illucens) serve as a valuable protein source for animal feed. Limiting factors in the industrial rearing of BSF are the reproduction process and egg output. Studies indicate the potential to shorten preoviposition time and increase egg output through better utilization of environmental variables, such as temperature and light, in industrial settings. Excessive stimulation, however, can lead to stress, elevated production costs, and reduced egg numbers, emphasizing the need for a delicate balance. This study addresses these challenges by investigating controlled manipulation of environmental variables to stimulate mating and enhance egg production, thereby developing a comprehensive model encompassing the adult fly life cycle, mating, and egg production. Model parameters were fitted using literature data, and the model’s plausibility was tested through simulations. Using the model and optimal control methods, the calculated dynamic trajectories for environmental variables when compared to the standard approach in a constant environment demonstrated higher output and shorter production cycles at reasonable energy costs. Applications for this model-based optimization are demonstrated for various scenarios, highlighting the practical utility and versatility of the developed model. This study contributes valuable insights for improving rearing practices of BSF through environmental stimulation, offering potential advancements in egg production efficiency and overall sustainability.

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Section: Introductionmentioning

confidence: 99%

Model-based process optimization of black soldier fly egg production

Kobelski,

Hempel,

Padmanabha

et al. 2024

Front. Bioeng. Biotechnol.

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“…8 Several authors have acknowledged the use of insects to treat organic wastes. Particularly black soldier fly is an insect that has increased its relevance as a result of their rapid growth, efficient waste conversion, biomass generation 15 and the variety of value-added products, such as protein, lipids and fertilizers, that can be obtained from them 16 as well as its facility and ability to grow in diverse residues. 17 Its habitat is prevalent in regions with warm temperatures, 18 with an optimal temperature ranging between 25 • C and 30 • C. Regarding its growing medium, BSFL require organic waste with digestible nutrients like plants, animals and even manure.…”

Section: Introductionmentioning

confidence: 99%

Revaluation process of cheese whey through the cultivation of black soldier fly larvae (Hermetia illucens)

Caltzontzin‐Rabell,

Escobar‐Ortiz,

Gutiérrez‐Antonio

et al. 2024

Engineering Reports

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Organic wastes, including cheese whey, are generated in greater quantities each year, which require management that has economic and social implications. Current treatments of cheese whey do not allow for its complete degradation or utilization. In this context, black soldier fly larvae (BSFL) promise to degrade a variety of wastes while generating and accumulating value‐added products such as protein, fat that can be transformed into biodiesel, and fertilizer can be obtained from their residues. In this work, the aim was to evaluate the cultivation of BSFL as a biological treatment for the revaluation process of cheese whey, as well as the composition of the larvae and residue (FRASS) obtained for the subsequent extraction of value‐added products such as fat or protein. It was observed that cheese whey did not affect the growth of the larvae, on the contrary, it increased it (final weight of = 0.252 ± 0.003 g). The larvae biomass was composed of mainly of lipids (42.48 ± 1.26% dry matter) and protein (34.98 ± 0.72% dry matter). A fatty acid profile was also performed, which confirms that, due to their composition (Saturated fatty acids = 262.91 ± 34.81 mg/g; monounsaturated fatty acids = 85.29 ± 19.64 mg/g; polyunsaturated fatty acids = 63.68 ± 11.33 mg/g), these accumulated lipids can be extracted for biodiesel production. This is the first approach to the treatment and utilization of cheese whey through insects.

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