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Myszka K, Tomaś N, Wolko Ł. Gallic and ferulic acids suppress proteolytic activities and volatile trimethylamine production in the food-borne spoiler Rahnella aquatilis KM05. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:6584-6594. [PMID: 37245214 DOI: 10.1002/jsfa.12753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/20/2023] [Accepted: 05/28/2023] [Indexed: 05/30/2023]
Abstract
BACKGROUND Rahnella aquatilis is a recognised microbial threat that alters the sensory properties of seafood. The high frequency with which R. aquatilis is isolated from fish has prompted a search for alternative preservatives. In the present study, in vitro and fish-based ecosystem (raw salmon-based medium) approaches were used to validate the antimicrobial effects of gallic (GA) and ferulic (FA) acids against R. aquatilis KM05. The results were compared with data describing the response of KM05 to sodium benzoate. Bioinformatics data of the whole genome were used to analyse the potential for fish spoilage by KM05 in detail, and the results revealed the main physiological characteristics that underlie reduced seafood quality. RESULTS In the KM05 genome, the most abundantly enriched Gene Ontology terms were 'metabolic process', 'organic substance metabolic process' and 'cellular process'. Through an evaluation of the Pfam annotations, 15 annotations were found to be directly involved in the proteolytic activity of KM05. Peptidase_M20 was the most abundantly represented (abundance value of 14060). Proteins representing the CutC family (abundance value of 427) indicated the potential for KM05 degradation of trimethyl-amine-N-oxide. Subinhibitory concentrations of GA and FA suppressed the proteolytic activities of KM05 both in vitro and in RS medium by an average of 33-45%. These results were confirmed by quantitative real-time PCR experiments, which also showed that the expression levels of genes involved in proteolytic activities and volatile trimethylamine production were also decreased. CONCLUSION Phenolic compounds can be used as potential food additives for preventing quality deterioration of fish products. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Kamila Myszka
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Poznan, Poland
| | - Natalia Tomaś
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Poznan, Poland
| | - Łukasz Wolko
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Poznan, Poland
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Leng W, Wu X, Qi X, Liu H, Yuan L, Gao R. Systematic functional analysis and potential application of a serine protease from cold-adapted Planococcus bacterium. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2023.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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Li Y, Leng W, Xue J, Yuan L, Liu H, Gao R. A multi-omics-based investigation into the flavor formation mechanisms during the fermentation of traditional Chinese shrimp paste. Food Res Int 2023; 166:112585. [PMID: 36914317 DOI: 10.1016/j.foodres.2023.112585] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023]
Abstract
The fermentation process of traditional shrimp paste is closely associated with the production of flavor substances, but the formation mechanism of key aroma components is still unclear. In this study, a comprehensively flavor profile analysis of traditional fermented shrimp paste was carried out by E-nose and SPME-GC-MS. A total of 17 key volatile aroma components with OAV > 1 contributed greatly to the overall flavor formation of shrimp paste. In addition, high-throughput sequencing (HTS) analysis revealed that Tetragenococcus was the dominant genera in the whole fermentation process. Moreover, metabolomics analysis showed that the oxidation and degradation of lipids, protein, organic acids and amino acids produced a large number of flavor substances and intermediates, which laid the foundation for the Maillard reaction in term of generating the distinct aroma of the traditional shrimp paste. This work will provide theoretical support for the realization of flavor regulation and quality control in traditional fermented foods.
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Affiliation(s)
- Ying Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Weijun Leng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiani Xue
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Li Yuan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hongying Liu
- Ocean College, Hebei Agriculture University, Qinhuangdao 066000, China
| | - Ruichang Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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Analysis of the changes of volatile flavor compounds in a traditional Chinese shrimp paste during fermentation based on electronic nose, SPME-GC-MS and HS-GC-IMS. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.07.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Du H, Fu Y, Deng N, Xu Y. Transcriptional Profiling Reveals Adaptive Response and Tolerance to Lactic Acid Stress in Pichia kudriavzevii. Foods 2022; 11:foods11182725. [PMID: 36140854 PMCID: PMC9498142 DOI: 10.3390/foods11182725] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Pichia kudriavzevii plays an important role in fermented foods and beverages. In the long domestication process of traditional fermentation, the mechanism of response to lactic acid, a common metabolite and growth inhibitor, is currently unclear in P. kudriavzevii. In this study, the tolerance to lactic acid of P. kudriavzevii C-16, isolated from fermented grains, was compared with its type strain ATCC 24210. Under lactic acid stress, P. kudriavzevii C-16 showed increased biomass yields and lactic acid consumption rates. Then, mRNA sequencing was used to analyze the response to lactic acid in P. kudriavzevii C-16. Results showed that 92 and 96 genes were significantly upregulated, 52 and 58 genes were significantly downregulated, respectively, in P. kudriavzevii C-16 cultured for 12 h and 24 h. The genes, which involved in pyruvate metabolic pathway, ABC transporter proteins, glutamate metabolic pathway, and the biosynthetic pathway of leucine and valine, were observed to be differentially expressed between the P. kudriavzevii C-16 and its type strain ATCC 24210. By analyzing the production of higher alcohols, the concentrations of isobutyl alcohol and isoamyl alcohol produced by P. kudriavzevii C-16 increased significantly. It was consistent with the up-regulation of genes that biosynthesized related amino acids.
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Affiliation(s)
| | | | | | - Yan Xu
- Correspondence: ; Tel.: +86-510-85964112
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Zhang LL, Fan G, Li X, Ren JN, Huang W, Pan SY, He J. Identification of functional genes associated with the biotransformation of limonene to trans-dihydrocarvone in Klebsiella sp. O852. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3297-3307. [PMID: 34800295 DOI: 10.1002/jsfa.11675] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/17/2021] [Accepted: 11/20/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Natural dihydrocarvone has been widely used in the food, cosmetics, agrochemicals and pharmaceuticals industries because of its sensory properties and physiological effects. In our previous study, Klebsiella sp. O852 was shown to be capable of converting limonene to trans-dihydrocarvone with high catalytic efficiency. Thus, it was essential to identify and characterize the functional genes involved in limonene biotransformation using genome sequencing and heterologous expression. RESULTS The 5.49-Mb draft genome sequence of Klebsiella sp. O852 contained 5218 protein-encoding genes. Seven candidate genes participating in the biotransformation of limonene to trans-dihydrocarvone were identified by genome analysis. Heterologous expression of these genes in Escherichia coli BL21(DE3) indicated that 0852_GM005124 and 0852_GM003417 could hydroxylate limonene in the six position to yield carveol, carvone and trans-dihydrocarvone. 0852_GM002332 and 0852_GM001602 could catalyze the oxidation of carveol to carvone and trans-dihydrocarvone. 0852_GM000709, 0852_GM001600 and 0852_GM000954 had high carvone reductase activity toward the hydrogenation of carvone to trans-dihydrocarvone. CONCLUSION The results obtained in the present study suggest that the seven genes described above were responsible for converting limonene to trans-dihydrocarvone. The present study contributes to providing a foundation for the industrial production of trans-dihydrocarvone in microbial chassis cells using synthetic biology strategies. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Lu-Lu Zhang
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - Gang Fan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiao Li
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jing-Nan Ren
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wen Huang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Si-Yi Pan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jin He
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
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Huang P, Zhou Y, Tang W, Ren C, Jiang A, Wang X, Qian X, Zhou Z, Gong A. Long-term treatment of Nicotinamide mononucleotide improved age-related diminished ovary reserve through enhancing the mitophagy level of granulosa cells in mice. J Nutr Biochem 2021; 101:108911. [PMID: 34801690 DOI: 10.1016/j.jnutbio.2021.108911] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/25/2021] [Accepted: 10/22/2021] [Indexed: 12/17/2022]
Abstract
Ovarian aging affects the reproductive health of elderly women due to decline in oocyte quality, which is closely related to mitochondrial dysfunction. Nicotinamide mononucleotide (NMN), as a precursor of NAD+, effectively regulate mitochondria metabolism in mice. However, roles of NMN in improving age-related diminished ovary reserve remain to be determined. In present study, 4, 8, 12, 24, 40-week old female ICR mice were collected and a 20-week-long administration of NMN was conducted to 40-week-old mice (60WN), meanwhile the control group is given water (60WC). First, we found that 20-week-long administration of NMN to 40-week-old mice exhibited anti-aging and anti-inflammatory effects on organ structures, along with the improvement of estrus cycle condition and endocrine function. The number of primordial, primary, secondary, antral follicles and corpora luteum of ovaries in 60WN group was significantly increased compared with those in 60WC group. Additionally, the protein and gene expressions of P16 of ovaries were significantly reduced in 60WN group than in 60WC group. the mitochondria biogenesis, autophagy level, and proteases activity enhanced in granulosa cells after 20-week-administration of NMN. Present results indicate that NMN has the potential to save diminished ovary reserve by long-term treatment, providing a basis for exploring the role of NMN in anti-ovarian aging by enhancing the mitophagy level of granulosa cells.
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Affiliation(s)
- Pan Huang
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yan Zhou
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Weihong Tang
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Caifang Ren
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Anqi Jiang
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Xuxin Wang
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Xin Qian
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Zhengrong Zhou
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China.
| | - Aihua Gong
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China.
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Huang P, Jiang A, Wang X, Zhou Y, Tang W, Ren C, Qian X, Zhou Z, Gong A. NMN Maintains Intestinal Homeostasis by Regulating the Gut Microbiota. Front Nutr 2021; 8:714604. [PMID: 34395502 PMCID: PMC8358781 DOI: 10.3389/fnut.2021.714604] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to determine the effects of long-term Nicotinamide mononucleotide (NMN) treatment on modulating gut microbiota diversity and composition, as well as its association with intestinal barrier function. In this study, C57BL/6J mice were fed different concentrations of NMN, and their feces were collected for detection of 16S rDNA and non-targeted metabolites to explore the effects of NMN on intestinal microbiota and metabolites. The results revealed that NMN increased the abundance of butyric acid-producing bacteria (Ruminococcae_UCG-014 and Prevotellaceae_NK3B31_group) and other probiotics (Akkermansia muciniphila), while the abundance of several harmful bacteria (Bilophila and Oscillibacter) were decreased after NMN treatment. Meanwhile, the level of bile acid-related metabolites in feces from the G1 group (0.1 mg/ml) was significantly increased compared to the control group, including cholic acid, taurodeoxycholic acid, taurocholic acid, glycocholic acid, and tauro-β-muricholic acid. In addition, long-term NMN treatment affected the permeability of the intestinal mucosa. The number of goblet cells and mucus thickness increased, as well as expression of tight junction protein. These results demonstrate that NMN reduced intestinal mucosal permeability and exerts a protective effect on the intestinal tract. This study lays the foundation for exploring NMN's utility in clinical research.
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Affiliation(s)
- Pan Huang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Anqi Jiang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xuxin Wang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yan Zhou
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Weihong Tang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Caifang Ren
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xin Qian
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhengrong Zhou
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Aihua Gong
- School of Medicine, Jiangsu University, Zhenjiang, China
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