Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve
The quality of fermented milk can be improved by the exopolysaccharides (EPSs) produced by probiotics. Bifidobacterium breve H4-2 and H9-3 with different EPS production were used as co-fermented probiotics to ferment goat milk in the present study. The physicochemical properties of fermented goat mi...
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Tsinghua University Press
2025-11-01
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| Series: | Food Science of Animal Products |
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| Online Access: | https://www.sciopen.com/article/10.26599/FSAP.2025.9240121 |
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| author | Mengmeng Niu Qiwen Jin Huanxin Guo Xiangchen Meng |
| author_facet | Mengmeng Niu Qiwen Jin Huanxin Guo Xiangchen Meng |
| author_sort | Mengmeng Niu |
| collection | DOAJ |
| description | The quality of fermented milk can be improved by the exopolysaccharides (EPSs) produced by probiotics. Bifidobacterium breve H4-2 and H9-3 with different EPS production were used as co-fermented probiotics to ferment goat milk in the present study. The physicochemical properties of fermented goat milk and the interaction between goat milk casein and CEPS (EPSs separated from starter culture and B. breve H4-2 fermented goat milk) were investigated. Results indicated that both B. breve H4-2 and H9-3 have similar gene clusters for EPS synthesis, but B. breve H4-2 exhibits a higher ability in EPS productions. Compared to the starter culture group, combining B. breve H4-2 or H9-3 with a starter culture significantly increased the levels of EPSs ((724.16 ± 1.54) and (607.15 ± 4.55) mg/L) and lactic acid ((14.62 ± 0.02) and (16.87 ± 0.01) mg/mL) at the late storage period. Co-fermentation also enhanced the water holding capacity, firmness, consistency, cohesion, and viscosity index, reduced dehydration in fermented goat milk. Moreover, the interaction study revealed that CEPS reduced the particle size and increased the ζ-potential absolute value of the CEPS and casein mixture system. Additionally, CEPS effectively mitigated casein aggregation, thereby enhancing the stability of fermented goat milk. These findings present a novel perspective for the development of a natural starter. |
| format | Article |
| id | doaj-art-6fd0586f3f6a4f99b3cfbf4cfb5d016a |
| institution | Kabale University |
| issn | 2958-4124 2958-3780 |
| language | English |
| publishDate | 2025-11-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Food Science of Animal Products |
| spelling | doaj-art-6fd0586f3f6a4f99b3cfbf4cfb5d016a2025-08-20T03:32:45ZengTsinghua University PressFood Science of Animal Products2958-41242958-37802025-11-0133924012110.26599/FSAP.2025.9240121Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breveMengmeng Niu0Qiwen Jin1Huanxin Guo2Xiangchen Meng3Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, ChinaKey Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, ChinaKey Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, ChinaKey Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, ChinaThe quality of fermented milk can be improved by the exopolysaccharides (EPSs) produced by probiotics. Bifidobacterium breve H4-2 and H9-3 with different EPS production were used as co-fermented probiotics to ferment goat milk in the present study. The physicochemical properties of fermented goat milk and the interaction between goat milk casein and CEPS (EPSs separated from starter culture and B. breve H4-2 fermented goat milk) were investigated. Results indicated that both B. breve H4-2 and H9-3 have similar gene clusters for EPS synthesis, but B. breve H4-2 exhibits a higher ability in EPS productions. Compared to the starter culture group, combining B. breve H4-2 or H9-3 with a starter culture significantly increased the levels of EPSs ((724.16 ± 1.54) and (607.15 ± 4.55) mg/L) and lactic acid ((14.62 ± 0.02) and (16.87 ± 0.01) mg/mL) at the late storage period. Co-fermentation also enhanced the water holding capacity, firmness, consistency, cohesion, and viscosity index, reduced dehydration in fermented goat milk. Moreover, the interaction study revealed that CEPS reduced the particle size and increased the ζ-potential absolute value of the CEPS and casein mixture system. Additionally, CEPS effectively mitigated casein aggregation, thereby enhancing the stability of fermented goat milk. These findings present a novel perspective for the development of a natural starter.https://www.sciopen.com/article/10.26599/FSAP.2025.9240121bifidobacterium breveexopolysaccharidefermented goat milkcasein |
| spellingShingle | Mengmeng Niu Qiwen Jin Huanxin Guo Xiangchen Meng Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve Food Science of Animal Products bifidobacterium breve exopolysaccharide fermented goat milk casein |
| title | Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve |
| title_full | Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve |
| title_fullStr | Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve |
| title_full_unstemmed | Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve |
| title_short | Study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide-producing Bifidobacterium breve |
| title_sort | study on improving the quality of fermented goat milk and its mechanism by exopolysaccharide producing bifidobacterium breve |
| topic | bifidobacterium breve exopolysaccharide fermented goat milk casein |
| url | https://www.sciopen.com/article/10.26599/FSAP.2025.9240121 |
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