Brewery spent yeast medium for Serratia sp. bio-beads improves Chenopodium quinoa Willd. growth in the Northern Altiplano of Bolivia

Abstract

Quinoa (Chenopodium quinoa Willd.) is a climate-resilient Andean crop with high nutritional value and strategic importance for food security in high-altitude regions. However, its productivity in low-input farming systems remains limited. This study developed scalable strategies for propagation and formulation of a Serratia sp. strain as a biofertilizer, using brewery spent yeast (BSY) as growth substrate. Microwave-assisted extraction (MAE) at 1200 W for 15 min significantly (P

Keywords

agricultural and industrial residues; carrageenan encapsulation; microwave-assisted extraction; plant growth-promoting rhizobacteria; quinoa stalks; sustainable agriculture

Published in

Letters in Applied Microbiology
2026, volume: 79, number: 1, article number: ovaf143
Publisher: OXFORD UNIV PRESS

SLU Authors

• Gonzales, Virginia

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    
  • Universidad Mayor de San Andres

• Jensen, Dan Funck

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

• Karlsson, Magnus

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Agricultural Science
Microbiology

Publication identifier

• DOI: https://doi.org/10.1093/lambio/ovaf143

Permanent link to this page (URI)

https://res.slu.se/id/publ/145915