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  • Title: Fermented Duckweed as a Potential Feed Additive with Poultry Beneficial Bacilli Probiotics.
    Author: Mahoney R, Weeks R, Huang Q, Dai W, Cao Y, Liu G, Guo Y, Chistyakov VA, Ermakov AM, Rudoy D, Bren A, Popov I, Chikindas ML.
    Journal: Probiotics Antimicrob Proteins; 2021 Oct; 13(5):1425-1432. PubMed ID: 33988837.
    Abstract:
    In this study, the duckweed varieties Lemna minor, Spirodela polyrhiza, and a commercially processed duckweed food supplement were investigated as potential substrates for the propagation of two probiotic Bacillus strains, B. subtilis KATMIRA1933 and B. amyloliquefaciens B-1895. Both L. minor and S. polyrhiza were found to be suitable substrates for the propagation of both bacilli, with 8.47-9.48 Log CFU/g and 10.17-11.31 Log CFU/g after 24 and 48 h growth on the substrates, respectively. The commercial duckweed product was a less favorable substrate, with growth reaching a maximum of 7.89-8.91 CFU/g after 24 h with no further growth after 48 h. Growth and adherence of the bacilli to the three products were confirmed via electron microscopy. These strains have demonstrated health-promoting benefits for poultry and thereby have the potential to enhance duckweed as an animal feed through the process of fermentation. Duckweed has been shown to be a promising alternative resource for protein and has the opportunity to become a valuable resource in multiple industries as a potential means to increase sustainability, food security, and reduce environmental impact.
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