Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae)
Background Spent coffee grounds (SCG), an increasingly abundant waste product with environmental disposal problems, has been used as a dietary supplement for many animals and have the potential to be used as a dietary supplement for black soldier fly (BSF) larvae; however, its effective use is still...
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| Format: | Article |
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PeerJ Inc.
2022-10-01
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| Online Access: | https://peerj.com/articles/14340.pdf |
| _version_ | 1797422086792151040 |
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| author | Kanyanat Khaekratoke Parichart Laksanawimol Anchana Thancharoen |
| author_facet | Kanyanat Khaekratoke Parichart Laksanawimol Anchana Thancharoen |
| author_sort | Kanyanat Khaekratoke |
| collection | DOAJ |
| description | Background Spent coffee grounds (SCG), an increasingly abundant waste product with environmental disposal problems, has been used as a dietary supplement for many animals and have the potential to be used as a dietary supplement for black soldier fly (BSF) larvae; however, its effective use is still under scrutiny. To date, no studies have considered the use of SCG after microbial fermentation (fSCG) and its effects on BSF life history. Methods A mixture of fruit and vegetable pulp residue supplemented with one of six different fSCG percentages (0%, 20%, 40%, 60%, 80%, and 100% by weight) were provided as a diet substrate in order to evaluate the effect of the fSCG quantity on BSF growth, yield, and conversion ability. Results The addition of fSCG to the pulp diet prolonged larval development times, while 100% fSCG affected the larval survival rate and resulted in a male-biased adult sex ratio. The 20–40% fSCG and 40–60% fSCG treatments supported the largest prepupal and mature larval sizes, respectively. The highest waste reduction efficiency and feed conversion rate by BSF larvae was found with 20% fSCG, similar to the control (0% fSCG). Discussion From the short rearing time, high yield, and high bioconversion efficiency, a 20% fSCG supplementation of the mixed pulp was recommended for rearing BSF larvae. These data are valuable for coffee by-product waste management in urban areas. |
| first_indexed | 2024-03-09T07:27:04Z |
| format | Article |
| id | doaj.art-4b6ce7e9b7a94f7f95b04e4b4f243a85 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T07:27:04Z |
| publishDate | 2022-10-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-4b6ce7e9b7a94f7f95b04e4b4f243a852023-12-03T06:52:43ZengPeerJ Inc.PeerJ2167-83592022-10-0110e1434010.7717/peerj.14340Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae)Kanyanat Khaekratoke0Parichart Laksanawimol1Anchana Thancharoen2Department of Entomology, Kasetsart University, Bangkok, ThailandFaculty of Science, Chandrakasem Rajabhat University, Bangkok, ThailandDepartment of Entomology, Kasetsart University, Bangkok, ThailandBackground Spent coffee grounds (SCG), an increasingly abundant waste product with environmental disposal problems, has been used as a dietary supplement for many animals and have the potential to be used as a dietary supplement for black soldier fly (BSF) larvae; however, its effective use is still under scrutiny. To date, no studies have considered the use of SCG after microbial fermentation (fSCG) and its effects on BSF life history. Methods A mixture of fruit and vegetable pulp residue supplemented with one of six different fSCG percentages (0%, 20%, 40%, 60%, 80%, and 100% by weight) were provided as a diet substrate in order to evaluate the effect of the fSCG quantity on BSF growth, yield, and conversion ability. Results The addition of fSCG to the pulp diet prolonged larval development times, while 100% fSCG affected the larval survival rate and resulted in a male-biased adult sex ratio. The 20–40% fSCG and 40–60% fSCG treatments supported the largest prepupal and mature larval sizes, respectively. The highest waste reduction efficiency and feed conversion rate by BSF larvae was found with 20% fSCG, similar to the control (0% fSCG). Discussion From the short rearing time, high yield, and high bioconversion efficiency, a 20% fSCG supplementation of the mixed pulp was recommended for rearing BSF larvae. These data are valuable for coffee by-product waste management in urban areas.https://peerj.com/articles/14340.pdfSCGBioconversion rateFermented substrateGrowth performances |
| spellingShingle | Kanyanat Khaekratoke Parichart Laksanawimol Anchana Thancharoen Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae) PeerJ SCG Bioconversion rate Fermented substrate Growth performances |
| title | Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae) |
| title_full | Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae) |
| title_fullStr | Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae) |
| title_full_unstemmed | Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae) |
| title_short | Use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae, Hermetia illucens (L), (Diptera: Stratiomyidae) |
| title_sort | use of fermented spent coffee grounds as a substrate supplement for rearing black soldier fly larvae hermetia illucens l diptera stratiomyidae |
| topic | SCG Bioconversion rate Fermented substrate Growth performances |
| url | https://peerj.com/articles/14340.pdf |
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