Pretreatment is an important method for increasing the conversion efficiency of rice straw by black soldier fly larvae based on the function of gut microorganisms
| Autor: | Cuncheng Liu, Stephen J. Chapman, Cunwen Wang, Huaiying Yao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Devosia
animal structures Environmental Engineering Hermetia illucens 010504 meteorology & atmospheric sciences Microorganism 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Animals Environmental Chemistry Lignin Hemicellulose Biomass Food science Cellulose Waste Management and Disposal 0105 earth and related environmental sciences biology Diptera fungi food and beverages Oryza biology.organism_classification Pollution Gastrointestinal Microbiome chemistry Larva Energy source Digestion |
| Zdroj: | Science of The Total Environment. 762:144118 |
| ISSN: | 0048-9697 |
| Popis: | Rice straw is considered as a renewable biomass energy source and its efficient utilization is still a topic worthy of attention. Black soldier fly larvae, Hermetia illucens (L.), (Diptera: Stratiomydiae) is a kind of saprophytic insect, which can effectively digest organic wastes. Here we report that alkaline peroxide-pretreatment improves the digestion of rice straw by these larvae, especially the decomposition of cellulose, which was at 70.9% compared to 58.2% without pretreatment. After conversion, the effective conversion rates of rice straw to larvae were 10.7% and 11.4%, for raw rice straw and rice straw with pretreatment, respectively. With pretreatment the composition of larval gut microorganisms was altered where Actinomyces, Dysgonomonas, Devosia and Pelagibacterium were the dominant flora for digesting rice straw. In addition, metabolism, environmental information processing and genetic information processing were the major gut microbial functions. These findings demonstrate that chemical pretreatment for the removal of lignin and hemicellulose was an effective measure for the digestion and consumption of rice straw by black soldier fly larvae. |
| Databáze: | OpenAIRE |
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