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

doi:10.1016/j.biortech.2023.129480

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

Bioresour Technol. 2023 Oct:386:129480. doi: 10.1016/j.biortech.2023.129480. Epub 2023 Jul 10.

Authors

Zihan Li¹, Ting Zhou², Qi Zhang³, Tongying Liu⁴, Jiangling Lai¹, Canbo Wang¹, Leipeng Cao¹, Yuhuan Liu¹, Roger Ruan⁵, Mingxiong Xue⁶, Yunpu Wang¹, Xian Cui¹, Cuixia Liu⁷, Yan Ren⁸

Affiliations

¹ State Key Laboratory of Food Science and Resource, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang, Jiangxi 330047, China.
² Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia.
³ State Key Laboratory of Food Science and Resource, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang, Jiangxi 330047, China. Electronic address: zhangqi093115@ncu.edu.cn.
⁴ Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, China.
⁵ Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul MN 55108, USA.
⁶ Beihai Spd Science Technology Co., LTD, Beihai, Guangxi 530021, China.
⁷ School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou, Henan 450007, China.
⁸ Zhejiang Suntown Environment Protection Co., LTD, Quzhou, Zhejiang 324000, China.

PMID: 37437813
DOI: 10.1016/j.biortech.2023.129480

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.

Keywords: Antioxidant activity; Cold atmospheric pressure plasma; Microorganism inactivation; Nutritional components; Spirulina platensis slurry.

MeSH terms

Atmospheric Pressure
Biomass
Plasma Gases* / metabolism
Spirulina* / metabolism

Substances

Plasma Gases

Supplementary concepts

Arthrospira platensis