@misc{10481/106172,
year = {2025},
month = {7},
url = {https://hdl.handle.net/10481/106172},
abstract = {Sustainable agricultural practices require innovative solutions to enhance productivity while reducing environmental impact. The use of plant growth-promoting microorganisms, such as Bacillus subtilis, as biofertilizers is
a promising strategy. However, ensuring cell viability during storage and under field conditions remains a
challenge. This study investigates the encapsulation of B. subtilis via spray-drying using starch hydrolysates with
different dextrose equivalent (DE) values (DE-8, DE-18, and DE-38) as wall materials. Encapsulation efficiency
was approximately 80 % for all formulations. The DE values influenced microcapsule morphology and cell
release profiles, with higher DE materials producing smoother, smaller, and more homogeneous particles. The
microcapsules effectively protected cells against high salinity and acidic pH stresses. Thermal stability was
significantly improved with DE-18 and DE-38, maintaining over 95 % viability after 72 h at 50 ◦C. Under UV
exposure, DE-18 demonstrated superior protection. Storage stability tests confirmed enhanced longevity for
encapsulated cells compared to free bacteria, with higher DE microcapsules demonstrating better resilience to
elevated temperatures. These findings highlight the potential of starch-based microencapsulation to improve
biofertilizer performance, ensuring microbial survival and efficacy in diverse environmental conditions.},
organization = {Ministerio de Ciencia e
Innovación (PID2023-146901OB-I00)},
organization = {São Paulo State Research Foundation (FAPESP, grant 2024/09631-8)},
organization = {Brazilian National Council for Scientific and Technological Development
(CNPqgrants 441573/2023-1, 402713/2023-0 and 406925/2022-4-
INCT)},
publisher = {Elsevier},
keywords = {Bacillus},
keywords = {Encapsulation},
keywords = {Spray-drying},
keywords = {Starch hydrolysates},
keywords = {Carbohydrates},
title = {Microencapsulation of Bacillus subtilis by spray-drying using starch hydrolysates with different dextrose equivalent values},
doi = {10.1016/j.ijbiomac.2025.146082},
author = {Momesso Lopes, Marina and Sanchez Farinas, Cristiane and Martínez Bueno, Manuel and García-Moreno, Pedro J. and Guadix Escobar, Emilia María},
}