Impact of cold atmospheric pressure plasma (CAPP) treatments on the prebiotic potential of Arthrospira platensis (Spirulina)

• DOI: 10.1016/j.algal.2024.103432
• Publication Date: 2024-02-13T17:01:06Z
• Authors: María Consuelo Pi...; Neus Ricós-Muñoz; Ella Karina López...; Consuelo Esteve; Sergi Maicas; Michael Beyrer
• Keywords: Spirulina (dietary supplement); Arthrospira; Prebiotic

Powdered Arthrospira platensis (Spirulina) is one of the most valuable nutraceutical products in terms functionality and food-fortification due to its recognized prebiotic, antioxidant, immunomodulatory potential. The present study aims assess quality this matrix as a prebiotic after Cold Atmospheric Pressure Plasma (CAPP) processing. CAPP-treated Spirulina samples (1 mg/mL), at effective discharge power 1.1, 1.7, 2.2 3.3 W for 5 min, were used promote growth probiotics Limosilactobacillus reuteri Lacticaseibacillus rhamnosus GG. Chicory inulin was reference material mg/ml). - Microorganisms inoculated different prepared media, incubated 48 h, 30 °C, under anaerobic conditions. probiotics' rate on (CAPP treated untreated) dispersions, protein stability their secondary metabolites production evaluated. bacterial (>7.0 ± 0.2 log10 cycles) indices (compared untreated Spirulina) confirm before CAPP proteomic metabolomic profiles hydrolyzed post-fermentation revealed significant differences nutritional values final fermented product, depending applied intensity. provides first-time insight into optimization increased bioavailability compounds proofed development.