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Saraiva A, Carrascosa C, Ramos F, Raheem D, Pedreiro S, Vega A, Raposo A. Brazzein and Monellin: Chemical Analysis, Food Industry Applications, Safety and Quality Control, Nutritional Profile and Health Impacts. Foods 2023; 12:foods12101943. [PMID: 37238762 DOI: 10.3390/foods12101943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/30/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Recently, customers have been keener to buy products manufactured using all-natural ingredients with positive health properties, but without losing flavor. In this regard, the objective of the current study is to review the consumption of brazzein and monellin, their nutritional profiles and health effects, and their potential applications in the food industry. This poses challenges with sustainability and important quality and safety indicators, as well as the chemical processes used to determine them. To better understand the utilization of brazzein and monellin, the chemical analysis of these two natural sweet proteins was also reviewed by placing particular emphasis on their extraction methods, purification and structural characterization. Protein engineering is considered a means to improve the thermal stability of brazzein and monellin to enhance their application in food processing, especially where high temperatures are applied. When the quality and safety of these sweet proteins are well-investigated and the approval from safety authorities is secured, the market for brazzein and monellin as food ingredient substitutes for free sugar will be guaranteed in the future. Ultimately, the review on these two natural peptide sweeteners increases the body of knowledge on alleviating problems of obesity, diabetes and other non-communicable diseases.
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Affiliation(s)
- Ariana Saraiva
- Department of Animal Pathology and Production, Bromatology and Food Technology, Faculty of Veterinary, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - Conrado Carrascosa
- Department of Animal Pathology and Production, Bromatology and Food Technology, Faculty of Veterinary, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - Fernando Ramos
- Faculty of Pharmacy, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Dele Raheem
- Arctic Centre, University of Lapland, 96101 Rovaniemi, Finland
| | - Sónia Pedreiro
- Faculty of Pharmacy, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Angelo Vega
- Department of Animal Pathology and Production, Bromatology and Food Technology, Faculty of Veterinary, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - António Raposo
- CBIOS (Research Center for Biosciences and Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
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2
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Bilal M, Ji L, Xu S, Zhang Y, Iqbal HMN, Cheng H. Bioprospecting and biotechnological insights into sweet-tasting proteins by microbial hosts-a review. Bioengineered 2022; 13:9815-9828. [PMID: 35435127 PMCID: PMC9161876 DOI: 10.1080/21655979.2022.2061147] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Owing to various undesirable health effects of sugar overconsumption, joint efforts are being made by industrial sectors and regulatory authorities to reduce sugar consumption practices, worldwide. Artificial sweeteners are considered potential substitutes in several products, e.g., sugar alcohols (polyols), high-fructose corn syrup, powdered drink mixes, and other beverages. Nevertheless, their long-standing health effects continue to be debatable. Consequently, growing interest has been shifted in producing non-caloric sweetenersfrom renewable resources to meet consumers' dietary requirements. Except for the lysozyme protein, various sweet proteins including thaumatin, mabinlin, brazzein, monellin, miraculin, pentadin, and curculin have been identified in tropical plants. Given the high cost and challenging extortion of natural resources, producing these sweet proteins using engineered microbial hosts, such as Yarrowia lipolytica, Pichia pastoris, Hansenula polymorpha, Candida boidinii, Arxula adeninivorans, Pichia methanolica, Saccharomyces cerevisiae, and Kluyveromyces lactis represents an appealing choice. Engineering techniques can be applied for large-scale biosynthesis of proteins, which can be used in biopharmaceutical, food, diagnostic, and medicine industries. Nevertheless, extensive work needs to be undertaken to address technical challenges in microbial production of sweet-tasting proteins in bulk. This review spotlights historical aspects, physicochemical properties (taste, safety, stability, solubility, and cost), and recombinant biosynthesis of sweet proteins. Moreover, future opportunities for process improvement based on metabolic engineering strategies are also discussed.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Liyun Ji
- Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Shuo Xu
- Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yue Zhang
- Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Hafiz M. N. Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, Mexico
| | - Hairong Cheng
- Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
- CONTACT Hairong Cheng Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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3
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CHOI HE, LEE JI, JO SY, CHAE YC, LEE JH, SUN HJ, KO K, HONG S, KONG KH. Functional expression of the sweet-tasting protein brazzein in transgenic tobacco. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.40521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Berlec A, Janež N, Sterniša M, Klančnik A, Sabotič J. Expression of NanoLuc Luciferase in Listeria innocua for Development of Biofilm Assay. Front Microbiol 2021; 12:636421. [PMID: 33633716 PMCID: PMC7901905 DOI: 10.3389/fmicb.2021.636421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/13/2021] [Indexed: 11/17/2022] Open
Abstract
Studies of biofilm formation by bacteria are crucial for understanding bacterial resistance and for development of novel antibacterial strategies. We have developed a new bioluminescence biofilm assay for Listeria innocua, which is considered a non-pathogenic surrogate for Listeria monocytogenes. L. innocua was transformed with a plasmid for inducible expression of NanoLuc luciferase (Nluc). Concentration-dependent bioluminescence signals were obtained over a concentration range of more than three log units. This biofilm assay enables absolute quantification of bacterial cells, with the necessary validation. For biofilm detection and quantification, this “Nluc bioluminescence” method has sensitivity of 1.0 × 104 and 3.0 × 104 colony forming units (CFU)/mL, respectively, with a dynamic range of 1.0 × 104 to 5.0 × 107 CFU/mL. These are accompanied by good precision (coefficient of variation, <8%) and acceptable accuracy (relative error for most samples, <15%). This novel method was applied to assess temporal biofilm formation of L. innocua as a function of concentration of inoculant, in comparison with conventional plating and CFU counting, the crystal violet assay, and the resazurin fluorescence assay. Good correlation (r = 0.9684) of this Nluc bioluminescence assay was obtained with CFU counting. The limitations of this Nluc bioluminescence assay include genetic engineering of bacteria and relatively high cost, while the advantages include direct detection, absolute cell quantification, broad dynamic range, low time requirement, and high sensitivity. Nluc-based detection of L. innocua should therefore be considered as a viable alternative or a complement to existing methods.
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Affiliation(s)
- Aleš Berlec
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia.,Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Nika Janež
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Meta Sterniša
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Anja Klančnik
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Jerica Sabotič
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
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5
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Namai F, Shigemori S, Ogita T, Sato T, Shimosato T. Construction of genetically modified Lactococcus lactis that produces bioactive anti-interleukin-4 single-chain fragment variable. Mol Biol Rep 2020; 47:7039-7047. [PMID: 32880064 DOI: 10.1007/s11033-020-05765-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/28/2020] [Indexed: 12/14/2022]
Abstract
Interleukin 4 (IL-4) is a cytokine that induces T-cell differentiation and the production of antibodies from B cells, and plays a crucial role in the allergic response. Therefore, development of a therapeutic approach against IL-4 signaling is expected to prevent or control Th2-related allergic diseases. IL-4 single-chain fragment variable (scFv), which is a recombinant protein consisting of the Fv region of an IL-4 antibody connected to a flexible peptide linker, is expected to be an inhibitor of IL-4 signaling. In this study, recombinant IL-4 scFv was produced by genetically modified lactic acid bacteria (gmLAB); this system is gaining attention as a type of microbial therapeutics. Recombinant gene expression was confirmed with western blotting, and the IL-4 recognition ability of IL-4 scFv produced by gmLAB was examined with an enzyme-linked immunosorbent assay. The macrophage cell line, Raw264.7, and peritoneal macrophages isolated from C57BL/6 mice were employed for an in vitro IL-4 signaling inhibition assay. IL-4 stimulation increased the mRNA expression of arginase-1, a biomarker of IL-4 signaling in macrophages, but arginase-1 expression was suppressed by IL-4 scFv produced by gmLAB, indicating that IL-4 scFv has IL-4 signaling inhibitory activity. gmLAB that produces bioactive IL-4 scFv that was constructed in this study could be an attractive approach for treating allergic disorders.
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Affiliation(s)
- Fu Namai
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Shinshu University, Nagano, Japan
| | - Suguru Shigemori
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Shinshu University, Nagano, Japan
| | - Tasuku Ogita
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Shinshu University, Nagano, Japan
| | - Takashi Sato
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Shinshu University, Nagano, Japan
| | - Takeshi Shimosato
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Shinshu University, Nagano, Japan.
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6
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Tham HY, Song AAL, Yusoff K, Tan GH. Effect of different cloning strategies in pET-28a on solubility and functionality of a staphylococcal phage endolysin. Biotechniques 2020; 69:161-170. [PMID: 32787565 DOI: 10.2144/btn-2020-0034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Endolysins have been studied intensively as an alternative to antibiotics. In this study, endolysin derived from a phage which infects methicillin-resistant Staphylococcus aureus (MRSA) was cloned and expressed in Escherichia coli pET28a. Initially, the endolysin was cloned using BamHI/XhoI, resulting in expression of a recombinant endolysin which was expressed in inclusion bodies. While solubilization was successful, the protein remained nonfunctional. Recloning the endolysin using NcoI/XhoI resulted in expression of soluble and functional proteins at 18°C. The endolysin was able to form halo zones on MRSA plates and showed a reduction in turbidity of MRSA growth. Therefore, cloning strategies should be chosen carefully even in an established expression system as they could greatly affect the functionality of the expressed protein.
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Affiliation(s)
- Hong Y Tham
- Department of Microbiology, Faculty of Biotechnology & Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Adelene A-L Song
- Department of Microbiology, Faculty of Biotechnology & Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Khatijah Yusoff
- Department of Microbiology, Faculty of Biotechnology & Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Geok H Tan
- Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Agriculture Technology, Faculty of Agriculture, University Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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7
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Liu B, Jiang H, Wang H, Yang L. Removal of the N-terminal methionine improves the sweetness of the recombinant expressed sweet-tasting protein brazzein and its mutants in Escherichia coli. J Food Biochem 2020; 45:e13354. [PMID: 32614080 DOI: 10.1111/jfbc.13354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 05/26/2020] [Accepted: 06/03/2020] [Indexed: 11/28/2022]
Abstract
The sweet-tasting protein brazzein is the smallest sweet protein with high sweet potency. Overexpression of this protein in a heterogenous host is an essential way for its production in food industry. In this study, the gene of minor form brazzein was cloned into the pET-SUMO vector with optimized codon usage and expressed in E. coli BL21-CodonPlus (DE3)-RIL. The recombinant protein in absence of the N-terminal methionine displayed a sweetness threshold about 1.5 μg/ml, which is the sweetest brazzein protein reported up to now. The unexpected sweet potency of the protein was validated by a series of mutants (7Val → Arg, 9Glu → Lys and 9Glu → Asp), in which E9K exhibited about 50% enhancement of sweetness than the wild type. The superior sweetness of recombinant brazzein and its sweeter mutants suggest their potential applications in food and beverages. PRACTICAL APPLICATIONS: The sweet-tasting proteins are natural, low-, or non-caloric and nutritive, showing to be promising replacers of sugars and artificial sweeteners, and can be used as sweet additives in the fields of food, medicine, and biotechnology. In the present study, we report that the recombinant brazzein protein expressed in E. coli exhibits superior and improved sweetness than those previously reported. Furthermore, sweeter mutants were obtained with the expression procedure. The superior sweetness of recombinant brazzein and its sweeter mutants suggest their potential applications in food, beverages, and other fields.
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Affiliation(s)
- Bo Liu
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Hua Jiang
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Haiyong Wang
- School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Liu Yang
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
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8
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Kazemi-Nasab A, Shahpiri A. Expression of Brazzein, a Small Sweet-Tasting Protein in Saccharomyces cerevisiae: An Introduction for Production of Sweet Yeasts. Protein Pept Lett 2020; 27:945-952. [PMID: 32228415 DOI: 10.2174/0929866527666200331134431] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/14/2020] [Accepted: 01/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The replacement of carbohydrate sweeteners with protein sweeteners from plants has attracted the interest of researchers because these proteins don't trigger the insulin response and are more nutritive for consumption in food. Brazzein (Braz) is a small and heat- stable sweet protein that has been originally derived from African plant Pentadiplandra brazzeana. In the present work the solubility, sweetness and yield of recombinant forms of Braz in two expression hosts, E. coli and S. cerevisiae were comprised. METHODS The codon-optimized gene of Braz was cloned in expression vectors pET28a and pET41a and GPD. The resulted vectors pET28a-Braz and pEt41a-Braz were transformed into Escherichia coli strain Rosetta (DE3) and the vector GPD-Braz was transformd to S. cerevisiae. The expression of Braz in different systems was analyzed by SDS-PAGE and western blotting. RESULTS The results verified the heterologous expression of Braz in S. cerevisiae carrying GPDBraz. Also the expression of Braz as carboxy-terminal extensions of His-tag and Glutathione-STransferase (GST) were verified in transgenic E. coli containing pET28a-Braz and pET41a-Braz, respectively. CONCLUSION Although the yield of GST-Braz was higher than His-Braz and Braz expressed in S. cerevisiae, but the higher solubility, sweetness, safety (GRAS) are important advantages of the use of S. cerevisiae as expression host for production of Braz. Therefore the result of present work opens new insights for providing the new sweet yeasts that can be used as food additives.
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Affiliation(s)
- Akram Kazemi-Nasab
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Azar Shahpiri
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
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Jafarian V, Bagheri K, Zarei J, Karami S, Ghanavatian P. Improved expression of recombinant sweet-tasting brazzein using codon optimization and host change as new strategies. FOOD BIOTECHNOL 2020. [DOI: 10.1080/08905436.2019.1711113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Vahab Jafarian
- Department of Biology, Faculty of science, University of Zanjan, Zanjan, Iran
| | - Khadijeh Bagheri
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | - Jabraeil Zarei
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | - Shima Karami
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | - Parisa Ghanavatian
- Department of Biology, Faculty of science, University of Zanjan, Zanjan, Iran
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10
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Hung CY, Cheng LH, Yeh CM. Functional expression of recombinant sweet-tasting protein brazzein by Escherichia coli and Bacillus licheniformis. FOOD BIOTECHNOL 2019. [DOI: 10.1080/08905436.2019.1618323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Chien-Ya Hung
- Department of Management and Utilization, Fengshan Tropical Horticultural Experiment Branch, Taiwan Agricultural Research Institute, Kaohsiung, Taiwan
| | - Lee-Hao Cheng
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Chuan-Mei Yeh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
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11
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Lee HM, Park SW, Lee SJ, Kong KH. Optimized production and quantification of the tryptophan-deficient sweet-tasting protein brazzein in Kluyveromyces lactis. Prep Biochem Biotechnol 2019; 49:790-799. [PMID: 31140364 DOI: 10.1080/10826068.2019.1621892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The sweet-tasting protein brazzein is a candidate sugar substitute owing to its sweet, sugar-like taste and good stability. To commercialize brazzein as a sweetener, optimization of fermentation and purification procedure is necessary. Here, we report the expression conditions of brazzein in the yeast Kluyveromices lactis and purification method for maximum yield. Transformed K. lactis was cultured in YPGlu (pH 7.0) at 25 °C and induced by adding glucose:galactose at a weight ratio of 1:2 (%/%) during the stationary phase, which increased brazzein expression 2.5 fold compared to the previous conditions. Cultures were subjected to heat treatment at 80 °C for 1 h, and brazzein containing supernatant was purified using carboxymethyl-sepharose cation exchange chromatography using 50 mM NaCl in 50 mM sodium acetate buffer (pH 4.0) as a wash buffer and 400 mM NaCl (pH 7.0) for elution. The yield of purified brazzein under these conditions was 2.0-fold higher than that from previous purification methods. We also determined that the NanoOrange assay was a suitable method for quantifying tryptophan-deficient brazzein. Thus, it is possible to obtain pure recombinant brazzein with high yield in K. lactis using our optimized expression, purification, and quantification protocols, which has potential applications in the food industry.
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Affiliation(s)
- Hyung-Min Lee
- a Biomolecular Chemistry Laboratory, Department of Chemistry, College of Natural Sciences, Chung-Ang University , Seoul , Korea
| | - Se-Woong Park
- a Biomolecular Chemistry Laboratory, Department of Chemistry, College of Natural Sciences, Chung-Ang University , Seoul , Korea
| | - Sung-Jun Lee
- a Biomolecular Chemistry Laboratory, Department of Chemistry, College of Natural Sciences, Chung-Ang University , Seoul , Korea
| | - Kwang-Hoon Kong
- a Biomolecular Chemistry Laboratory, Department of Chemistry, College of Natural Sciences, Chung-Ang University , Seoul , Korea
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12
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Boumaiza M, Colarusso A, Parrilli E, Garcia-Fruitós E, Casillo A, Arís A, Corsaro MM, Picone D, Leone S, Tutino ML. Getting value from the waste: recombinant production of a sweet protein by Lactococcus lactis grown on cheese whey. Microb Cell Fact 2018; 17:126. [PMID: 30111331 PMCID: PMC6094915 DOI: 10.1186/s12934-018-0974-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/07/2018] [Indexed: 12/18/2022] Open
Abstract
Background Recent biotechnological advancements have allowed for the adoption of Lactococcus lactis, a typical component of starter cultures used in food industry, as the host for the production of food-grade recombinant targets. Among several advantages, L. lactis has the important feature of growing on lactose, the main carbohydrate in milk and a majoritarian component of dairy wastes, such as cheese whey. Results We have used recombinant L. lactis NZ9000 carrying the nisin inducible pNZ8148 vector to produce MNEI, a small sweet protein derived from monellin, with potential for food industry applications as a high intensity sweetener. We have been able to sustain this production using a medium based on the cheese whey from the production of ricotta cheese, with minimal pre-treatment of the waste. As a proof of concept, we have also tested these conditions for the production of MMP-9, a protein that had been previously successfully obtained from L. lactis cultures in standard growth conditions. Conclusions Other than presenting a new system for the recombinant production of MNEI, more compliant with its potential applications in food industry, our results introduce a strategy to valorize dairy effluents through the synthesis of high added value recombinant proteins. Interestingly, the possibility of using this whey-derived medium relied greatly on the choice of the appropriate codon usage for the target gene. In fact, when a gene optimized for L. lactis was used, the production of MNEI proceeded with good yields. On the other hand, when an E. coli optimized gene was employed, protein synthesis was greatly reduced, to the point of being completely abated in the cheese whey-based medium. The production of MMP-9 was comparable to what observed in the reference conditions. Electronic supplementary material The online version of this article (10.1186/s12934-018-0974-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mohamed Boumaiza
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy
| | - Andrea Colarusso
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy
| | - Ermenegilda Parrilli
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy
| | - Elena Garcia-Fruitós
- Department of Ruminant Production, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), 08140, Caldes de Montbui, Spain
| | - Angela Casillo
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy
| | - Anna Arís
- Department of Ruminant Production, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), 08140, Caldes de Montbui, Spain
| | - Maria Michela Corsaro
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy
| | - Delia Picone
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy
| | - Serena Leone
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy.
| | - Maria Luisa Tutino
- Department of Chemical Sciences, University of Naples Federico II, via Cintia, 80126, Naples, Italy.
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Song AAL, In LLA, Lim SHE, Rahim RA. A review on Lactococcus lactis: from food to factory. Microb Cell Fact 2017; 16:55. [PMID: 28376880 PMCID: PMC5379754 DOI: 10.1186/s12934-017-0669-x] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 03/28/2017] [Indexed: 02/08/2023] Open
Abstract
Lactococcus lactis has progressed a long way since its discovery and initial use in dairy product fermentation, to its present biotechnological applications in genetic engineering for the production of various recombinant proteins and metabolites that transcends the heterologous species barrier. Key desirable features of this gram-positive lactic acid non-colonizing gut bacteria include its generally recognized as safe (GRAS) status, probiotic properties, the absence of inclusion bodies and endotoxins, surface display and extracellular secretion technology, and a diverse selection of cloning and inducible expression vectors. This have made L. lactis a desirable and promising host on par with other well established model bacterial or yeast systems such as Escherichia coli, Saccharomyces [corrected] cerevisiae and Bacillus subtilis. In this article, we review recent technological advancements, challenges, future prospects and current diversified examples on the use of L. lactis as a microbial cell factory. Additionally, we will also highlight latest medical-based applications involving whole-cell L. lactis as a live delivery vector for the administration of therapeutics against both communicable and non-communicable diseases.
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Affiliation(s)
- Adelene Ai-Lian Song
- Department of Microbiology, Faculty of Biotechnology & Biomolecular Sciences, University Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Lionel L A In
- Functional Food Research Group, Department of Biotechnology, Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Swee Hua Erin Lim
- Perdana University-Royal College of Surgeons in Ireland, Perdana University, Block B and D, MAEPS Building, MARDI Complex, Jalan MAEPS Perdana, 43400, Serdang, Selangor, Malaysia
| | - Raha Abdul Rahim
- Department of Cell & Molecular Biology, Faculty of Biotechnology & Biomolecular Sciences, University Putra Malaysia, Serdang, Selangor, Malaysia
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Recombinant expressions of sweet plant protein mabinlin II in Escherichia coli and food-grade Lactococcus lactis. World J Microbiol Biotechnol 2015; 31:557-67. [PMID: 25649203 DOI: 10.1007/s11274-015-1809-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 01/23/2015] [Indexed: 10/24/2022]
Abstract
Sweet plant proteins, which are safe, natural, low-calorie sweeteners, may be suitable replacements for sugars in the food and beverage industries. Mabinlin II, a sweet plant protein, shows the most pronounced heat stability and acid resistance of any of the six known types of plant sweet proteins. However, mabinlin II is difficult to extract from the Capparis masaikai plant, which is itself becoming increasingly scarce. This limits the use of naturally acquired mabinlin II. In this study, recombinant mabinlin II proteins were expressed and purified in Escherichia coli and in food-grade Lactococcus lactis. Recombinant mabinlin II proteins MBL-BH (containing the B-chains of mabinlin II downstream fused with His-tag) and MBL-ABH (containing the A- and B-chains of mabinlin II downstream fused with His-tag) were expressed in E. coli in the form of inclusion bodies. They were then purified and renatured. The refolded MBL-BH was found to be 100 times sweeter than sucrose by weight, but it was not heat-stable. Refolded MBL-ABH was neither sweet nor heat-stable. Recombinant mabinlin II proteins were secreted and expressed intracellularly in food-grade L. lactis, in which the concentrated cell samples and culture medium samples were detected using enzyme-linked immunosorbent assay and Western blotting analysis with anti-mabinlin II polyclonal antibody. This study demonstrated that the single B chain of mabinlin II has a sweet taste. The recombinant mabinlin II proteins have been successfully expressed in food-grade L. lactis, which is a crucial step in the production of mabinlin II through microorganism expression systems.
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15
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From physiology to systems metabolic engineering for the production of biochemicals by lactic acid bacteria. Biotechnol Adv 2013; 31:764-88. [DOI: 10.1016/j.biotechadv.2013.03.011] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/28/2013] [Accepted: 03/31/2013] [Indexed: 11/21/2022]
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16
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Yan S, Song H, Pang D, Zou Q, Li L, Yan Q, Fan N, Zhao X, Yu H, Li Z, Wang H, Gao F, Ouyang H, Lai L. Expression of plant sweet protein brazzein in the milk of transgenic mice. PLoS One 2013; 8:e76769. [PMID: 24155905 PMCID: PMC3796561 DOI: 10.1371/journal.pone.0076769] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 08/28/2013] [Indexed: 11/18/2022] Open
Abstract
Sugar, the most popular sweetener, is essential in daily food. However, excessive sugar intake has been associated with several lifestyle-related diseases. Finding healthier and more economical alternatives to sugars and artificial sweeteners has received increasing attention to fulfill the growing demand. Brazzein, which comes from the pulp of the edible fruit of the African plant Pentadiplandra brazzeana Baill, is a protein that is 2,000 times sweeter than sucrose by weight. Here we report the production of transgenic mice that carry the optimized brazzein gene driven by the goat Beta-casein promoter, which specifically directs gene expression in the mammary glands. Using western blot analysis and immunohistochemistry, we confirmed that brazzein could be efficiently expressed in mammalian milk, while retaining its sweetness. This study presents the possibility of producing plant protein–sweetened milk from large animals such as cattle and goats.
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Affiliation(s)
- Sen Yan
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Hong Song
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Daxin Pang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Qingjian Zou
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Li Li
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Quanmei Yan
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Nana Fan
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xiangjie Zhao
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Hao Yu
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Zhanjun Li
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Haijun Wang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Fei Gao
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Hongsheng Ouyang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
| | - Liangxue Lai
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Science, Jilin University, Changchun, China
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- * E-mail:
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Jo HJ, Noh JS, Kong KH. Efficient secretory expression of the sweet-tasting protein brazzein in the yeast Kluyveromyces lactis. Protein Expr Purif 2013; 90:84-9. [DOI: 10.1016/j.pep.2013.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/07/2013] [Accepted: 05/08/2013] [Indexed: 10/26/2022]
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18
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Berlec A, Malovrh T, Zadravec P, Steyer A, Ravnikar M, Sabotič J, Poljšak-Prijatelj M, Štrukelj B. Expression of a hepatitis A virus antigen in Lactococcus lactis and Escherichia coli and evaluation of its immunogenicity. Appl Microbiol Biotechnol 2013; 97:4333-42. [DOI: 10.1007/s00253-013-4722-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/13/2013] [Accepted: 01/15/2013] [Indexed: 12/23/2022]
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19
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Poirier N, Roudnitzky N, Brockhoff A, Belloir C, Maison M, Thomas-Danguin T, Meyerhof W, Briand L. Efficient production and characterization of the sweet-tasting brazzein secreted by the yeast Pichia pastoris. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:9807-9814. [PMID: 22958103 DOI: 10.1021/jf301600m] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Brazzein is a small, heat-, and pH-stable sweet protein present in the fruits of the West African plant Pentadiplandra brazzeana Baillon. It exists in two forms differing in sweetness intensity. The major form, called pyrE-bra, contains a pyroglutamic acid at its N-terminus, while the minor form, called des-pyrE-bra, lacks this residue. Here we describe the heterologous expression in the methylotrophic yeast Pichia pastoris of two natural forms of brazzein, pyrE-bra and des-pyrE-bra, and an additional form, called Q1-bra, which is not naturally occurring in the fruit. Q1-bra differs from pyrE-bra in having a glutamine residue instead of pyrE at its N-terminus. Over an expression period of 6 days, we obtained approximately 90, 30, and 90 mg/L of purified recombinant pyrE-bra, Q1-bra, and des-pyrE-bra brazzein forms, respectively. Recombinant proteins were purified and submitted to mass spectrometry and (1)H NMR spectroscopy. The data indicate that the recombinant brazzein forms were properly folded. Moreover, they activated the human sweet receptor in vitro and evoked sweetness in vivo with properties similar to those of the two natural brazzein forms.
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Affiliation(s)
- Nicolas Poirier
- INRA UMR1324, CNRS UMR6265, Université de Bourgogne , Centre des Sciences du Goût et de l'Alimentation, F-21000 Dijon, France
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21
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A BioBrick compatible strategy for genetic modification of plants. J Biol Eng 2012; 6:8. [PMID: 22716313 PMCID: PMC3537565 DOI: 10.1186/1754-1611-6-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 06/06/2012] [Indexed: 11/10/2022] Open
Abstract
Background Plant biotechnology can be leveraged to produce food, fuel, medicine, and materials. Standardized methods advocated by the synthetic biology community can accelerate the plant design cycle, ultimately making plant engineering more widely accessible to bioengineers who can contribute diverse creative input to the design process. Results This paper presents work done largely by undergraduate students participating in the 2010 International Genetically Engineered Machines (iGEM) competition. Described here is a framework for engineering the model plant Arabidopsis thaliana with standardized, BioBrick compatible vectors and parts available through the Registry of Standard Biological Parts (http://www.partsregistry.org). This system was used to engineer a proof-of-concept plant that exogenously expresses the taste-inverting protein miraculin. Conclusions Our work is intended to encourage future iGEM teams and other synthetic biologists to use plants as a genetic chassis. Our workflow simplifies the use of standardized parts in plant systems, allowing the construction and expression of heterologous genes in plants within the timeframe allotted for typical iGEM projects.
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22
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Functional expression of an orchid fragrance gene in Lactococcus lactis. Int J Mol Sci 2012; 13:1582-1597. [PMID: 22408409 PMCID: PMC3291978 DOI: 10.3390/ijms13021582] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 11/30/2011] [Accepted: 12/20/2011] [Indexed: 11/16/2022] Open
Abstract
Vanda Mimi Palmer (VMP), an orchid hybrid of Vanda tesselata and Vanda Tan Chay Yan is a highly scented tropical orchid which blooms all year round. Previous studies revealed that VMP produces a variety of isoprenoid volatiles during daylight. Isoprenoids are well known to contribute significantly to the scent of most fragrant plants. They are a large group of secondary metabolites which may possess valuable characteristics such as flavor, fragrance and toxicity and are produced via two pathways, the mevalonate (MVA) pathway or/and the 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway. In this study, a sesquiterpene synthase gene denoted VMPSTS, previously isolated from a floral cDNA library of VMP was cloned and expressed in Lactococcus lactis to characterize the functionality of the protein. L. lactis, a food grade bacterium which utilizes the mevalonate pathway for isoprenoid production was found to be a suitable host for the characterization of plant terpene synthases. Through recombinant expression of VMPSTS, it was revealed that VMPSTS produced multiple sesquiterpenes and germacrene D dominates its profile.
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Lee JJ, Kong JN, Do HD, Jo DH, Kong KH. Design and Efficient Soluble Expression of a Sweet Protein, Brazzein and Minor-Form Mutant. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.12.3830] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Fay MF, Christenhusz MJ. BRASSICALES - AN ORDER OF PLANTS CHARACTERISED BY SHARED CHEMISTRY. ACTA ACUST UNITED AC 2010. [DOI: 10.1111/j.1467-8748.2010.01695.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Application of the Saccharomyces cerevisiae FLP/FRT recombination system in filamentous fungi for marker recycling and construction of knockout strains devoid of heterologous genes. Appl Environ Microbiol 2010; 76:4664-74. [PMID: 20472720 DOI: 10.1128/aem.00670-10] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
To overcome the limited availability of antibiotic resistance markers in filamentous fungi, we adapted the FLP/FRT recombination system from the yeast Saccharomyces cerevisiae for marker recycling. We tested this system in the penicillin producer Penicillium chrysogenum using different experimental approaches. In a two-step application, we first integrated ectopically a nourseothricin resistance cassette flanked by the FRT sequences in direct repeat orientation (FRT-nat1 cassette) into a P. chrysogenum recipient. In the second step, the gene for the native yeast FLP recombinase, and in parallel, a codon-optimized P. chrysogenum flp (Pcflp) recombinase gene, were transferred into the P. chrysogenum strain carrying the FRT-nat1 cassette. The corresponding transformants were analyzed by PCR, growth tests, and sequencing to verify successful recombination events. Our analysis of several single- and multicopy transformants showed that only when the codon-optimized recombinase was present could a fully functional recombination system be generated in P. chrysogenum. As a proof of application of this system, we constructed a DeltaPcku70 knockout strain devoid of any heterologous genes. To further improve the FLP/FRT system, we produced a flipper cassette carrying the FRT sites as well as the Pcflp gene together with a resistance marker. This cassette allows the controlled expression of the recombinase gene for one-step marker excision. Moreover, the applicability of the optimized FLP/FRT recombination system in other fungi was further demonstrated by marker recycling in the ascomycete Sordaria macrospora. Here, we discuss the application of the optimized FLP/FRT recombination system as a molecular tool for the genetic manipulation of filamentous fungi.
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Berlec A, Strukelj B. Large increase in brazzein expression achieved by changing the plasmid /strain combination of the NICE system in Lactococcus lactis. Lett Appl Microbiol 2009; 48:750-5. [PMID: 19413801 DOI: 10.1111/j.1472-765x.2009.02608.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To evaluate brazzein production in Lactococcus lactis using the nisin-controlled expression (NICE) system. The approach is through analysis of different plasmid/strain combinations. METHODS AND RESULTS Two plasmid/strain combinations of the NICE system were used in brazzein expression: L. lactis NZ9000 harbouring plasmid pNZ8148, and L. lactis IL1403 harbouring plasmid pMSP3545. The former combination proved superior, with a >800-fold increase in His-tagged brazzein expression (to 1.65 mg l(-1) of fermentation broth), comparable to expression levels in Escherichia coli. Improved expression resulted in a minor increase in secretion to the medium with the use of the Usp45 signal peptide. The yield of wild-type brazzein corresponded to that of His-tagged brazzein. Wild-type brazzein was partially soluble and low-intensity sweetness was detected. CONCLUSIONS The plasmid/strain combination of the NICE system has a significant impact on the expression of brazzein where a >800-fold increase was achieved. The greatly increased expression of brazzein resulted in minor improvement in secretion and low-intensity sweetness. SIGNIFICANCE AND IMPACT OF THE STUDY The choice of the plasmid/strain combination of the NICE system was shown to be of extreme importance in brazzein expression.
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Affiliation(s)
- A Berlec
- Department of Biotechnology, JoZef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
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Berlec A, Tompa G, Slapar N, Fonović UP, Rogelj I, Strukelj B. Optimization of fermentation conditions for the expression of sweet-tasting protein brazzein in Lactococcus lactis. Lett Appl Microbiol 2008; 46:227-31. [PMID: 18215220 DOI: 10.1111/j.1472-765x.2007.02297.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To improve the production of sweet-tasting protein brazzein in Lactococcus lactis using controlled fermentation conditions. METHODS AND RESULTS The nisin-controlled expression system was used for brazzein expression. The concentration of nisin for induction and the optical density (OD) at induction were therefore optimized, together with growth conditions (medium composition, pH, aerobic growth in the presence of hemin). Brazzein was assayed with ELISA on Ni-NTA plates and Western blot. Use of the M-17 medium, containing 2.5% glucose, anaerobic growth at pH 5.9 and induction with 40 ng ml(-1) nisin at OD 3.0 led to an approx. 17-fold increase in brazzein per cell production compared to non-optimized starting conditions. Aerobic growth in the presence of hemin did not increase the production. CONCLUSIONS Considerable increase in brazzein per cell production was obtained at optimized fermentation conditions. SIGNIFICANCE AND IMPACT OF THE STUDY Optimized growth conditions could be used in application of brazzein expression in L. lactis. The importance of pH and OD at induction contributes to the body of knowledge of optimal recombinant protein expression in L. lactis. The new assay for brazzein quantification was introduced.
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Affiliation(s)
- A Berlec
- Department of Biotechnology, JoZef Stefan Institute, Ljubljana, Slovenia.
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