Influence of cold atmospheric pressure plasma treatment of Spirulina platensis slurry over biomass characteristics

Zihan Li, Ting Zhou, Qi Zhang, Tongying Liu, Jiangling Lai, Canbo Wang, Leipeng Cao, Yuhuan Liu, Roger Ruan, Mingxiong Xue, Yunpu Wang, Xian Cui, Cuixia Liu, Yan Ren

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Cold atmospheric pressure plasma (CAPP) technique is an innovative non-thermal approach for food preservation and decontamination. This study aimed to evaluate the effect of CAPP power density on microorganism inactivation and quality of Spirulina platensis (S. platensis) slurry. 91.31 ± 1.61% of microorganism were inactivated within 2.02 ± 0.11 min by 26.67 W/g CAPP treatment under 50 ℃. Total phenolic, Chlorophyll-a (Chl-a), and carotenoids contents were increased by 20.51%, 63.55%, and 70.04% after 20.00 W/g CAPP treatment. Phycobiliproteins (PBPs), protein, intracellular polysaccharide, and moisture content of S. platensis was decreased, while vividness, lightness, color of yellow and green, antioxidant activity, Essential Amino Acid Index were enhanced after CAPP treatment. The nutrient release and filaments breakage of CAPP-treated S. platensis improved its bio-accessibility. The findings provided a deep understanding and insight into the influence of CAPP treatment on S. platensis, which were meaningful for optimizing its sterilization and drying processing condition.

Original languageEnglish (US)
Article number129480
JournalBioresource Technology
Volume386
DOIs
StatePublished - Oct 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

  • Antioxidant activity
  • Cold atmospheric pressure plasma
  • Microorganism inactivation
  • Nutritional components
  • Spirulina platensis slurry

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