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Cheng YY, Park TH, Seong H, Kim TJ, Han NS. Biological characterization of D-lactate dehydrogenase responsible for high-yield production of D-phenyllactic acid in Sporolactobacillus inulinus. Microb Biotechnol 2022; 15:2717-2729. [PMID: 35921426 PMCID: PMC9618312 DOI: 10.1111/1751-7915.14125] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/12/2022] [Accepted: 07/21/2022] [Indexed: 01/05/2023] Open
Abstract
PLA (3‐D‐phenyllactic acid) is an ideal antimicrobial and immune regulatory compound present in honey and fermented foods. Sporolactobacillus inulinus is regarded as a potent D‐PLA producer that reduces phenylpyruvate (PPA) with D‐lactate dehydrogenases. In this study, PLA was produced by whole‐cell bioconversion of S. inulinus ATCC 15538. Three genes encoding D‐lactate dehydrogenase (d‐ldh1, d‐ldh2, and d‐ldh3) were cloned and expressed in Escherichia coli BL21 (DE3), and their biochemical and structural properties were characterized. Consequently, a high concentration of pure D‐PLA (47 mM) was produced with a high conversion yield of 88%. Among the three enzymes, D‐LDH1 was responsible for the efficient conversion of PPA to PLA with kinetic parameters of Km (0.36 mM), kcat (481.10 s−1), and kcat/Km (1336.39 mM−1 s−1). In silico structural analysis and site‐directed mutagenesis revealed that the Ile307 in D‐LDH1 is a key residue for excellent PPA reduction with low steric hindrance at the substrate entrance. This study highlights that S. inulinus ATCC 15538 is an excellent PLA producer, equipped with a highly specific and efficient D‐LDH1 enzyme.
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Affiliation(s)
- Ya-Yun Cheng
- Brain Korea 21 Center for Bio-Health Industry, Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju, Korea
| | - Tae Hyeon Park
- Brain Korea 21 Center for Bio-Health Industry, Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju, Korea
| | - Hyunbin Seong
- Brain Korea 21 Center for Bio-Health Industry, Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju, Korea
| | - Tae-Jip Kim
- Brain Korea 21 Center for Bio-Health Industry, Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju, Korea
| | - Nam Soo Han
- Brain Korea 21 Center for Bio-Health Industry, Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju, Korea
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Cheng Q, Chen L, Chen Y, Li P, Chen C. Effects of LAB Inoculants on the Fermentation Quality, Chemical Composition, and Bacterial Community of Oat Silage on the Qinghai-Tibetan Plateau. Microorganisms 2022; 10:microorganisms10040787. [PMID: 35456837 PMCID: PMC9026496 DOI: 10.3390/microorganisms10040787] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 12/31/2022] Open
Abstract
Lactic acid bacteria (LAB) have been proposed for the control of undesirable fermentation and, subsequently, aerobic deterioration due to their ability to produce antimicrobial metabolites in silage mass. To investigate the effect of specific LAB on the silage fermentation characteristics and bacterial community composition of oat in cold regions, silages were treated without (control) or with three LAB strains (LB, Lentilactobacillus buchneri; nLP, low temperature tolerant Lactiplantibacillus plantarum; pLP, phenyllactic acid-producing Lactiplantibacillus plantarum), and then stored at ambient temperature (−2.63 ± 5.47−14.29 ± 5.48 °C) for 30, 60, and 90 days. Compared with control, inoculation of LAB decreased the final pH value, butyric acid content, ammonia-N of total N and dry matter loss of silage. Treatments with nLP and pLP increased (p < 0.05) lactic acid content, whereas LB increased (p < 0.05) acetic acid content of silage. Lactiplantibacillus and Leuconostoc dominated in the silages with relative abundance of 68.29−96.63%. A prolonged storage period enhanced the growth of Leuconostoc in pLP-treated silage. In addition, pLP increased (p < 0.05) the aerobic stability of silage as compared with nLP. In conclusion, inoculation of LAB improved silage fermentation and/or delayed aerobic deterioration by shifting bacterial community composition during ensiling. Phenyllactic acid-producing Lactiplantibacillusplantarum as an inoculant exhibited potential for high quality silage production.
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Affiliation(s)
- Qiming Cheng
- College of Animal Science, Guizhou University, Guiyang 550025, China; (Q.C.); (L.C.); (Y.C.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Liangyin Chen
- College of Animal Science, Guizhou University, Guiyang 550025, China; (Q.C.); (L.C.); (Y.C.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Yulian Chen
- College of Animal Science, Guizhou University, Guiyang 550025, China; (Q.C.); (L.C.); (Y.C.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Ping Li
- College of Animal Science, Guizhou University, Guiyang 550025, China; (Q.C.); (L.C.); (Y.C.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Sichuan Academy of Grassland Sciences, Chengdu 611731, China
- Correspondence: (P.L.); (C.C.)
| | - Chao Chen
- College of Animal Science, Guizhou University, Guiyang 550025, China; (Q.C.); (L.C.); (Y.C.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Correspondence: (P.L.); (C.C.)
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Antibacterial effect of phenyllactic acid against Vibrio parahaemolyticus and its application on raw salmon fillets. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112586] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Xu JJ, Sun JZ, Si KL, Guo CF. 3-Phenyllactic acid production by Lactobacillus crustorum strains isolated from naturally fermented vegetables. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Xu JJ, Fu LJ, Si KL, Yue TL, Guo CF. 3-phenyllactic acid production by free-whole-cells of Lactobacillus crustorum in batch and continuous fermentation systems. J Appl Microbiol 2020; 129:335-344. [PMID: 32009287 DOI: 10.1111/jam.14599] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/06/2020] [Accepted: 01/29/2020] [Indexed: 01/11/2023]
Abstract
AIM 3-Phenyllactic acid (3-PLA) has been widely used in food and material industries. Three Lactobacillus crustorum strains have shown greater 3-PLA production ability in our previous study. The objectives of this study were to further improve 3-PLA yields in batch and continuous fermentation systems using of free-whole-cells of the three L. crustorum strains. MATERIALS AND RESULTS The fermentation conditions of free-whole-cells of the three L. crustorum strains for 3-PLA production were optimized. Among these strains, L. crustorum NWAFU 1078 showed excellent reusability and significantly (P < 0·05) greater 3-PLA production ability than the other strains after 10th recycle. The strain possesses three l-lactate dehydrogenase and three d-lactate dehydrogenase catalysing 3-PLA production from phenylpyruvic acid (PPA). Under the optimal conditions, the strain produced 15·2 mmol l-1 3-PLA (76% PPA conversion rate) in a batch fermentation system and 6·5 mmol l-1 h-1 3-PLA (55% PPA conversion rate) in a continuous fermentation system using a 0·6 dilution rate. CONCLUSIONS Free-whole-cells of L. crustorum NWAFU 1078 showed excellent reusability and higher 3-PLA yields under optimal biotransformation conditions in both batch and continuous fermentation systems. SIGNIFICANCE AND IMPACT OF THE STUDY This study provides the possibility to use the free-whole-cells of L. crustorum NWAFU 1078 as a biocatalyst for effective production of 3-PLA.
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Affiliation(s)
- J-J Xu
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - L-J Fu
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - K-L Si
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - T-L Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - C-F Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
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Li C, Li Y, Sui L, Wang J, Li F. Phenyllactic acid promotes cell migration and invasion in cervical cancer via IKK/NF-κB-mediated MMP-9 activation. Cancer Cell Int 2019; 19:241. [PMID: 31572058 PMCID: PMC6757389 DOI: 10.1186/s12935-019-0965-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 09/14/2019] [Indexed: 12/20/2022] Open
Abstract
Background Persistent infection with high-risk human papillomavirus (hrHPV) is associated with cervical cancer development. This process involves the virus-encoded E6 and E7 oncoproteins, which are maintained and expressed during all malignant transformation stages. However, HPV alone is insufficient to drive tumor progression-related behaviors such as cervical cancer cell motility. In this study, we investigated the effect of phenyllactic acid (PLA), a phenolic acid phytochemical and biomarker for discriminating various cancers, on the metastatic potential of cervical cancer cells. Methods The effects of PLA on HPV16/18 E6/E7 expression, migratory and invasive behavior, and matrix metalloproteinases (MMPs) expression of cervical cancers cells were measured. Specific inhibitors were used to further investigate biological function and underlying mechanism of PLA modulated cell motility. Results PLA significantly promoted the migration and invasion of SiHa, HeLa, and C-33A cervical cancer cells as well as upregulated matrix metalloproteinase-9 (MMP-9) expression. Moreover, PLA treatment attenuated E6/E7 expression in SiHa and HeLa cells. Further molecular analysis showed that PLA activated the nuclear factor-kappa B (NF-κB) signaling pathway and increased the nuclear translocation of both IκBα and p65. Treating cervical cancer cells with an NF-κB inhibitor potently reversed PLA-induced migratory and invasive behavior, MMP-9 upregulation, and/or E6/E7 downregulation. The PLA-induced NF-κB activation and MMP-9 upregulation were mediated by IκB kinase-β (IKK-β) phosphorylation via PKC signals. The results suggested that SiHa, HeLa, and C-33A cells might undergo a similar process to enhance their motility in response to PLA, regardless of the HPV status. Conclusions Collectively, our study reveals a new biological function of PLA and elucidate the possible molecular role of PLA as a risk factor for triggering cervical cancer cell motility.
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Affiliation(s)
- Chao Li
- 1Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, No. 2699, West GaoKe Road, Shanghai, 201204 China
| | - Yanfei Li
- 2School of Medical Technology, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China
| | - Lanxia Sui
- Department of Pediatrics, PLA No. 904 Hospital, Wuxi, 214000 China
| | - Jian Wang
- 4School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025 China
| | - Fang Li
- 5Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, No. 2699, West GaoKe Road, Shanghai, 201204 China
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Salim HMD, Huque KS, Kamaruddin KM, Haque Beg A. Global restriction of using antibiotic growth promoters and alternative strategies in poultry production. Sci Prog 2018; 101:52-75. [PMID: 29467062 PMCID: PMC10365203 DOI: 10.3184/003685018x15173975498947] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A growing global concern of antibiotic use in poultry diets due to its potential adverse effects on birds and human health, food safety and the environment has led to a complete ban or restricted use in some countries, and, at the same time, expanding options for the use of alternative feed additives. Multiple, rather than a single additive may replace antibiotic growth promoters (AGPs) in poultry. Blending of feeding additives and hygienic farm management, vaccination and biosecurity may help achieve good intestinal health, stabilise enteric ecosystems and result in sustainable and cost effective production performance of birds. Moreover, controlling unsolicited ingredients at the production level must have the support of different markets responsible for the supply of safe and quality poultry products for consumers. This requires the further increase and diversification of value added poultry products and the expansion of their markets through strategic planning and gradual limitation of live bird markets. More research is warranted in order to explore suitable, reliable and cost effective alternatives to AGPs for commercial use, and strategic poultry value chain development.
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Affiliation(s)
| | - Khan Shahidul Huque
- Animal nutrition and feeding, and environment and improved livestock manure (ILM)
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Antibacterial activity of phenyllactic acid against Listeria monocytogenes and Escherichia coli by dual mechanisms. Food Chem 2017; 228:533-540. [DOI: 10.1016/j.foodchem.2017.01.112] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/17/2016] [Accepted: 01/23/2017] [Indexed: 02/03/2023]
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Kermanshahi H, Heravi RM, Attar A, Pour ARA, Bayat E, Zadeh MH, Daneshmand A, Ibrahim SA. Effects of Acidified Yeast and Whey Powder on Performance, Organ Weights, Intestinal Microflora, and Gut Morphology of Male Broilers. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2017. [DOI: 10.1590/1806-9061-2016-0351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | - RM Heravi
- Ferdowsi University of Mashhad, Iran
| | - A Attar
- Ferdowsi University of Mashhad, Iran
| | | | | | | | | | - SA Ibrahim
- North Carolina A&T State University, USA
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