Volume 77, Issue 2 pp. 348-357
Research Article

Synergistic combination of cryoprotectants improved freeze-dried survival rate and viable counts of Lactiplantibacillus plantarum

Wenlong Ma

Wenlong Ma

College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127 China

Contribution: Conceptualization, Methodology, Validation, Writing - review & editing, Funding acquisition, Visualization, Data curation, Software

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Yinghua Li

Yinghua Li

College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127 China

Contribution: Data curation, ​Investigation, Validation, Writing - original draft, Software, Visualization

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Wenli Kang

Wenli Kang

Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co., Ltd., Changsha, 410083 China

Human Engineering Research Center of Human Microecological Products, Changsha, 410083 China

Contribution: Conceptualization, Validation, Methodology, Visualization

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Yifeng Han

Yifeng Han

Jiangsu College of Tourism, Yangzhou, 225127 China

Contribution: Methodology, Formal analysis

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Boxing Yin

Boxing Yin

Jiangsu Diary Biotechnology Engineering Research Center, Kang Yuan Diary Co. Ltd, Yangzhou, 225127 China

Contribution: Project administration, Supervision

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Renqin Yang

Renqin Yang

Jiangsu Diary Biotechnology Engineering Research Center, Kang Yuan Diary Co. Ltd, Yangzhou, 225127 China

Contribution: Project administration, Funding acquisition

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Rongxue Tang

Rongxue Tang

Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co., Ltd., Changsha, 410083 China

Contribution: Validation, Formal analysis, ​Investigation

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Lina Pan

Corresponding Author

Lina Pan

Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co., Ltd., Changsha, 410083 China

Human Engineering Research Center of Human Microecological Products, Changsha, 410083 China

School of minerals Processing and Bioengineering, Central South University, Changsha, 410083 China

Author for correspondence. E-mail: [email protected]; [email protected]

Contribution: Project administration, Supervision

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Jiaqi Wang

Jiaqi Wang

Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co., Ltd., Changsha, 410083 China

Human Engineering Research Center of Human Microecological Products, Changsha, 410083 China

Contribution: Supervision, Project administration

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Wei Li

Wei Li

Ausnutria Institute of Food and Nutrition, Ausnutria Dairy (China) Co., Ltd., Changsha, 410083 China

Contribution: Supervision, Project administration

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Yujun Huang

Corresponding Author

Yujun Huang

College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127 China

Author for correspondence. E-mail: [email protected]; [email protected]

Contribution: Conceptualization, Funding acquisition, Project administration, Writing - review & editing

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Ruixia Gu

Ruixia Gu

College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127 China

Human Engineering Research Center of Human Microecological Products, Changsha, 410083 China

Contribution: Project administration, Funding acquisition, Supervision

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First published: 08 February 2024
Citations: 1

Abstract

Well-designed cryoprotectants are crucial for successful probiotic application. In this study, based on literature analysis, characteristics and economic analysis of cryoprotectants, the sucrose (8.2%)–skim milk (8.0%)–inulin (8.2%) combination was proposed and optimised to enhance freeze-drying resistance of probiotics. Survival, viable cell counts and inactivation rate during storage at 4°C of Lactiplantibacillus plantarum grx16 protected by the combination was 94.9%, 1.89 × 1011 cfu/g and 0.0116. The optimised sucrose–skim milk–polymer prebiotics combination could also effectively protect several other probiotics, with the survival rate being 89.2–95.6%. These results will aid in the rational development of synergistic cryoprotectant formulations for probiotics.

CONFLICT OF INTEREST

The authors declare no competing interests.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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