Encapsulation of plant growth-promoting bacteria in poly(itaconic acid) microspheres by spray drying

Par Conseil national de recherches du Canada

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DOI	Trouver le DOI : https://doi.org/10.1021/acsagscitech.3c00356
Auteur	Rechercher : Kapishon, Vitaliy¹; Rechercher : Lorrain, Marie-Josée¹; Rechercher : Leung, Alfred C. W.¹; Rechercher : Gélinas, Anne-Marie¹; Rechercher : Wu, Meiqun¹; Rechercher : Sarrazin, Manon¹; Rechercher : Hrapovic, Sabahudin¹; Rechercher : Pagé, Antoine¹; Rechercher : Monteil-Rivera, Fanny¹; Rechercher : Hemraz, Usha D.¹Identifiant ORCID : https://orcid.org/0000-0001-5151-9484
Affiliation	Conseil national de recherches du Canada. Développement des cultures et des ressources aquatiques
Bailleur de fonds	Rechercher : Aquatic and Crop Resource Development Research Centre, National Research Council Canada
Format	Texte, Article
Sujet	bioencapsulation; poly(itaconic acid); plant growth-promoting bacteria; spray drying
Résumé	Poly(itaconic acid) (PIA) is a renewable, biobased, hydrophilic polymer of superabsorbent properties, with the potential to replace synthetic superabsorbent polymers in agricultural applications. Herein, we tested PIA for encapsulation of two model plant growth-promoting bacteria (PGPB), Bacillus subtilis and Pseudomonas fluorescens, using spray drying. Linear PIA was prepared, mixed with PGPB, and spray-dried to form microbe-loaded microspheres. The latter were analyzed for mass yield, moisture content, morphology, and microbial survival. Incubation of the microbes with PIA prior to spray drying showed no significant toxicity. The spray-dried microcapsules were about 1–10 μm in diameter, had a moisture content of about 11%, and contained a viable load of microbes (up to 1 × 10⁸ cells/gram of product). The microspheres underwent instantaneous swelling-dissolution to release live bacteria. The CFU data showed a survival of about 79% for B. subtilis after spray drying. This work presents PIA as a safe, sustainable, and promising new encapsulation material for microbial inoculants.
Date de publication	2023-11-13
Maison d’édition	American Chemical Society
Licence	Creative Commons Attribution 4.0 International (CC BY 4.0 DEED) https://creativecommons.org/licenses/by/4.0/deed.fr
Dans	ACS Agricultural Science & Technology 3, nº 12 (13 novembre 2023) : 1185–1193.
Langue	anglais
Publications évaluées par des pairs	Oui
Exporter la notice	Exporter en format RIS
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Identificateur de l’enregistrement	73021b2a-0878-47c3-b52e-946487961af6
Enregistrement créé	2023-12-20
Enregistrement modifié	2023-12-20

Date de modification :: 2024-06-29