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Bioplastic Film from Black Soldier Fly Prepupae Proteins Used as Mulch: Preliminary Results

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Department of Life Sciences, Centre BIOGEST-SITEIA, University of Modena and Reggio Emilia, Via Amendola, n. 2, 42122 Reggio Emilia, Italy
2
Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, Via Amendola, n. 2, 42122 Reggio Emilia, Italy
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Centro Ricerche Produzioni Animali—CRPA S.p.A., Viale Timavo, n. 43/2, 42121 Reggio Emilia, Italy
*
Authors to whom correspondence should be addressed.
Agronomy 2020, 10(7), 933; https://doi.org/10.3390/agronomy10070933
Received: 18 May 2020 / Revised: 18 June 2020 / Accepted: 27 June 2020 / Published: 29 June 2020
(This article belongs to the Special Issue Perennial Living Mulch Systems)
A protein-based film (PBF), obtained from black soldier fly prepupae proteins, was assessed for its agronomic performance as mulch. PBF was investigated in a potting experiment and compared with Mater-Bi (MB), polyethylene (PE) and bare soil. During the experiment, degraded surface area, weight and thickness of the film, water evaporated from the pot, and the soil microbiological content (SMC) were recorded. In addition, films were buried to assess their biodegradability and impact on SMC. During the mulching process, the PBF showed a significant degradation. In terms of evaporated water, the PBF performed similarly to MB and worse than PE. Regarding SMC, film of any nature caused an increase in the Clostridia spp. and a decrease of total mesophilic aerobic bacteria and fungi contents. When buried, only PBF recorded a faster biodegradability, showing a reduction of surface area, thickness and weight. PBF and MB highlighted a significant increase in contents of Clostridia spp., mesophilic aerobic bacteria and fungi. Our results reported, for the first time, the valorization of black soldier fly (BSF) prepupae proteins as a biodegradable film for mulching purposes. However, further study is needed to reduce the PBF biodegradability and allow it to be used for the most important mulched crops. View Full-Text
Keywords: biodegradable materials; soil microbiota; sustainable agriculture; circular economy biodegradable materials; soil microbiota; sustainable agriculture; circular economy
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MDPI and ACS Style

Setti, L.; Francia, E.; Pulvirenti, A.; De Leo, R.; Martinelli, S.; Maistrello, L.; Macavei, L.I.; Montorsi, M.; Barbi, S.; Ronga, D. Bioplastic Film from Black Soldier Fly Prepupae Proteins Used as Mulch: Preliminary Results. Agronomy 2020, 10, 933. https://doi.org/10.3390/agronomy10070933

AMA Style

Setti L, Francia E, Pulvirenti A, De Leo R, Martinelli S, Maistrello L, Macavei LI, Montorsi M, Barbi S, Ronga D. Bioplastic Film from Black Soldier Fly Prepupae Proteins Used as Mulch: Preliminary Results. Agronomy. 2020; 10(7):933. https://doi.org/10.3390/agronomy10070933

Chicago/Turabian Style

Setti, Leonardo, Enrico Francia, Andrea Pulvirenti, Riccardo De Leo, Simone Martinelli, Lara Maistrello, Laura I. Macavei, Monia Montorsi, Silvia Barbi, and Domenico Ronga. 2020. "Bioplastic Film from Black Soldier Fly Prepupae Proteins Used as Mulch: Preliminary Results" Agronomy 10, no. 7: 933. https://doi.org/10.3390/agronomy10070933

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