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Effects of compound lactic acid bacteria on the bacterial diversity and metabolites in the fermentation of air-dried beef
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Jungang WANG1, 2, Yuhui LI3, *, Yu LIU3, Yuezhang LIU3, Qiqi HAO1, Yaxuan LIU1
Acta Microbiologica Sinica | 2024, 64(8) : 2861 - 2881
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Acta Microbiologica Sinica | 2024, 64(8): 2861-2881
Research Articles
Effects of compound lactic acid bacteria on the bacterial diversity and metabolites in the fermentation of air-dried beef
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Jungang WANG1, 2, Yuhui LI3, *, Yu LIU3, Yuezhang LIU3, Qiqi HAO1, Yaxuan LIU1
Affiliations
  • 1 Department of Biology and Food Engineering, Bozhou University, Bozhou 236800, Anhui, China
  • 2 Bozhou Engineering Research Center for Separation and Purification of Natural Products, Bozhou 236800, Anhui, China
  • 3 Institute of Agro-products Processing Science and Technology, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, Xinjiang, China
Published: 2024-04-29 doi: 10.13343/j.cnki.wsxb.20240053
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[Objective] To explore the effects of compound lactic acid bacteria on the bacterial diversity and metabolites in the fermentation process of air-dried beef. [Methods] The lactic acid bacteria isolated in the early stage were inoculated into beef for fermentation with different strain combinations: C (Lactococcus garvieae TC-6:Pediococcus pentosaceus TMR-WJG, 1:1), D (L. garvieae TC-6:L. lactis TC-2, 1:1), G (P. pentosaceus TMR-WJG: L. lactis TC-2, 1:1), H (L. garvieae TC-6:P. pentosaceus TMR-WJG: L. lactis TC-2, 1:1:1), and K (without inoculation). High-throughput sequencing and non-targeted metabolomics were employed to study the bacterial community structure and metabolites, respectively, in air-dried beef inoculated with different combinations of lactic acid bacteria. [Results] A total of 304 species of bacteria belonging to 223 genera of 19 phyla were detected. Psychrobacter was predominant in the air-dried beef, with the average relative abundance of 52.21%. A total of 1 782 significantly differential metabolites were identified, including alkaloids, lipids, organic acids, and other metabolites related to flavor formation. The correlation analysis between microbiome and metabolome confirmed that the structures of bacterial communities differed significantly in the air-dried beef samples with different starters, which contributed to the differences of metabolites between groups, especially between groups C and K (P < 0.05). Specifically, the inoculation lowered the levels of coumarin and corilagin and elevated the levels of camellianin A, octadecadienoate, and lippioside Ⅱ. [Conclusion] The compound lactic acid bacteria selected in this study had a significant effect on the microbial community structure in air-dried beef. The quality formation of air-dried beef may be related to the microbial community structure and microbial metabolites. The compound lactic acid bacteria selected in this study demonstrated a potential application value.

air-dried beef  /  compound lactic acid bacteria  /  microbial diversity  /  high-throughput sequencing  /  non-targeted metabolomics
Jungang WANG, Yuhui LI, Yu LIU, Yuezhang LIU, Qiqi HAO, Yaxuan LIU. Effects of compound lactic acid bacteria on the bacterial diversity and metabolites in the fermentation of air-dried beef[J]. Acta Microbiologica Sinica, 2024 , 64 (8) : 2861 -2881 . DOI: 10.13343/j.cnki.wsxb.20240053
  • National Natural Science Foundation of China(31860437)
  • Key Foundation of Anhui Education Bureau(2022AH052410)
  • Start Funding of Bozhou University(BYKQ2021Z09)
Year 2024 volume 64 Issue 8
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Article Info
doi: 10.13343/j.cnki.wsxb.20240053
  • Receive Date:2024-01-18
  • Online Date:2026-03-19
  • Published:2024-04-29
Article Data
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History
  • Received:2024-01-18
  • Accepted:2024-04-22
Funding
National Natural Science Foundation of China(31860437)
Key Foundation of Anhui Education Bureau(2022AH052410)
Start Funding of Bozhou University(BYKQ2021Z09)
Affiliations
    1 Department of Biology and Food Engineering, Bozhou University, Bozhou 236800, Anhui, China
    2 Bozhou Engineering Research Center for Separation and Purification of Natural Products, Bozhou 236800, Anhui, China
    3 Institute of Agro-products Processing Science and Technology, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, Xinjiang, China

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*LI Yuhui, E-mail:
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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