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An JP, Wang Y, Munger SD, Tang X. A review on natural sweeteners, sweet taste modulators and bitter masking compounds: structure-activity strategies for the discovery of novel taste molecules. Crit Rev Food Sci Nutr 2024:1-24. [PMID: 38494695 DOI: 10.1080/10408398.2024.2326012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Growing demand for the tasty and healthy food has driven the development of low-calorie sweeteners, sweet taste modulators, and bitter masking compounds originated from natural sources. With the discovery of human taste receptors, increasing numbers of sweet taste modulators have been identified through human taste response and molecular docking techniques. However, the discovery of novel taste-active molecules in nature can be accelerated by using advanced spectrometry technologies based on structure-activity relationships (SARs). SARs explain why structurally similar compounds can elicit similar taste qualities. Given the characterization of structural information from reported data, strategies employing SAR techniques to find structurally similar compounds become an innovative approach to expand knowledge of sweeteners. This review aims to summarize the structural patterns of known natural non-nutritive sweeteners, sweet taste enhancers, and bitter masking compounds. Innovative SAR-based approaches to explore sweetener derivatives are also discussed. Most sweet-tasting flavonoids belong to either the flavanonols or the dihydrochalcones and known bitter masking molecules are flavanones. Based on SAR findings that structural similarities are related to the sensory properties, innovative methodologies described in this paper can be applied to screen and discover the derivatives of taste-active compounds or potential taste modulators.
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Affiliation(s)
- Jin-Pyo An
- Food Science and Human Nutrition, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, USA
| | - Yu Wang
- Food Science and Human Nutrition, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, USA
| | - Steven D Munger
- Center for Smell and Taste, Department of Pharmacology and Therapeutics, Department of Otolaryngology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Xixuan Tang
- Food Science and Human Nutrition, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, USA
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Samdani MN, Reza R, Morshed N, Asaduzzaman M, Islam ABMMK. Ligand-based modelling for screening natural compounds targeting Minichromosome Maintenance Complex Component-7 for potential anticancer effects. INFORMATICS IN MEDICINE UNLOCKED 2023. [DOI: 10.1016/j.imu.2022.101152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Iatridis N, Kougioumtzi A, Vlataki K, Papadaki S, Magklara A. Anti-Cancer Properties of Stevia rebaudiana; More than a Sweetener. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041362. [PMID: 35209150 PMCID: PMC8874712 DOI: 10.3390/molecules27041362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/27/2022] [Accepted: 02/15/2022] [Indexed: 01/03/2023]
Abstract
Stevia rebaudiana Bertoni is a perennial shrub from Paraguay that is nowadays widely cultivated, since it is increasingly being utilized as a sugar substitute in various foodstuffs due to its sweetness and minimal caloric content. These properties of the plant’s derivatives have spurred research on their biological activities revealing a multitude of benefits to human health, including antidiabetic, anticariogenic, antioxidant, hypotensive, antihypertensive, antimicrobial, anti-inflammatory and antitumor actions. To our knowledge, no recent reviews have surveyed and reported published work solely on the latter. Consequently, our main objective was to present a concise, literature-based review of the biological actions of stevia derivatives in various tumor types, as studied in in vitro and in vivo models of the disease. With global cancer estimates suggesting a 47% increase in cancer cases by 2040 compared to 2020, the data reviewed in this article should provide a better insight into Stevia rebaudiana and its products as a means of cancer prevention and therapy within the context of a healthy diet.
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Affiliation(s)
- Nikos Iatridis
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
| | - Anastasia Kougioumtzi
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
- Biomedical Research Insitute, Foundation for Research and Technology-Hellas, 45110 Ioannina, Greece
| | - Katerina Vlataki
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
| | - Styliani Papadaki
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
| | - Angeliki Magklara
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
- Biomedical Research Insitute, Foundation for Research and Technology-Hellas, 45110 Ioannina, Greece
- Institute of Biosciences, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
- Correspondence:
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Kumari S, Sikander M, Malik S, Tripathi MK, Hafeez BB, Yallapu MM, Chauhan SC, Khan S, Jaggi M. Steviol Represses Glucose Metabolism and Translation Initiation in Pancreatic Cancer Cells. Biomedicines 2021; 9:1814. [PMID: 34944630 PMCID: PMC8698284 DOI: 10.3390/biomedicines9121814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 12/02/2022] Open
Abstract
Pancreatic cancer has the worst prognosis and lowest survival rate among all cancers. Pancreatic cancer cells are highly metabolically active and typically reprogrammed for aberrant glucose metabolism; thus they respond poorly to therapeutic modalities. It is highly imperative to understand mechanisms that are responsible for high glucose metabolism and identify natural/synthetic agents that can repress glucose metabolic machinery in pancreatic cancer cells, to improve the therapeutic outcomes/management of pancreatic cancer patients. We have identified a glycoside, steviol that effectively represses glucose consumption in pancreatic cancer cells via the inhibition of the translation initiation machinery of the molecular components. Herein, we report that steviol effectively inhibits the glucose uptake and lactate production in pancreatic cancer cells (AsPC1 and HPAF-II). The growth, colonization, and invasion characteristics of pancreatic cancer cells were also determined by in vitro functional assay. Steviol treatment also inhibited the tumorigenic and metastatic potential of human pancreatic cancer cells by inducing apoptosis and cell cycle arrest in the G1/M phase. The metabolic shift by steviol was mediated through the repression of the phosphorylation of mTOR and translation initiation proteins (4E-BP1, eIF4e, eIF4B, and eIF4G). Overall, the results of this study suggest that steviol can effectively suppress the glucose metabolism and translation initiation in pancreatic cancer cells to mitigate their aggressiveness. This study might help in the design of newer combination therapeutic strategies for pancreatic cancer treatment.
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Affiliation(s)
- Sonam Kumari
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
| | - Mohammed Sikander
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Shabnam Malik
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Manish K. Tripathi
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Bilal B. Hafeez
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Murali M. Yallapu
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Subhash C. Chauhan
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Sheema Khan
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Meena Jaggi
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (M.S.); (S.M.); (M.K.T.); (B.B.H.); (M.M.Y.); (S.C.C.); (S.K.)
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
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Yan Z, Cao X, Yang X, Yang S, Xu L, Jiang X, Xiao M. A Novel β-Glucosidase From Chryseobacterium scophthalmum 1433 for Efficient Rubusoside Production From Stevioside. Front Microbiol 2021; 12:744914. [PMID: 34712213 PMCID: PMC8546341 DOI: 10.3389/fmicb.2021.744914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
As a natural sweetening and solubilizing agent, rubusoside has great potential in the application of healthy beverages and pharmaceuticals. However, the direct extraction and purification of rubusoside from raw materials is inefficient. In this work, a novel β-glucosidase (CsBGL) was obtained from Chryseobacterium scophthalmum 1433 through screening of the environmental microorganisms. CsBGL markedly hydrolyzed sophorese (Glcβ1-2Glc) and laminaribiose (Glcβ1-3Glc), but for steviol glycosides, it only hydrolyzed the C-13/C-19-linked sophorese, instead of the C-13/C-19-linked Glcβ1-2[Glcβ1-3]Glc trisaccharide and Glcβ1-monosaccharide. It efficiently hydrolyzed stevioside (240 g/L) to produce rubusoside (99% yield) at 47.5°C for 70 min. Even when using a crude steviol glycosides extract (500 g/L) containing ∼226 g/L stevioside as the substrate, CsBGL could also convert stevioside to rubusoside (99% yield) at 47.5°C for 2 h, in which the rubusoside concentration increased from the initial 42 g/L to the final 222 g/L. These results reveal that CsBGL would be a promising biocatalyst for the industry-scale production of rubusoside from stevioside or/and the crude steviol glycosides extract.
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Affiliation(s)
- Zhenxin Yan
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Xueting Cao
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Xiao Yang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Shida Yang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Li Xu
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Qingdao, China
| | - Xukai Jiang
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Qingdao, China
| | - Min Xiao
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China.,National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Qingdao, China
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Zerva A, Chorozian K, Kritikou AS, Thomaidis NS, Topakas E. β-Glucosidase and β-Galactosidase-Mediated Transglycosylation of Steviol Glycosides Utilizing Industrial Byproducts. Front Bioeng Biotechnol 2021; 9:685099. [PMID: 34178968 PMCID: PMC8220073 DOI: 10.3389/fbioe.2021.685099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/06/2021] [Indexed: 11/13/2022] Open
Abstract
Stevia rebaudiana Bertoni is a plant cultivated worldwide due to its use as a sweetener. The sweet taste of stevia is attributed to its numerous steviol glycosides, however, their use is still limited, due to their bitter aftertaste. The transglycosylation of steviol glycosides, aiming at the improvement of their taste, has been reported for many enzymes, however, glycosyl hydrolases are not extensively studied in this respect. In the present study, a β-glucosidase, MtBgl3a, and a β-galactosidase, TtbGal1, have been applied in the transglycosylation of two steviol glycosides, stevioside and rebaudioside A. The maximum conversion yields were 34.6 and 33.1% for stevioside, while 25.6 and 37.6% were obtained for rebaudioside A conversion by MtBgl3a and TtbGal1, respectively. Low-cost industrial byproducts were employed as sugar donors, such as cellulose hydrolyzate and acid whey for TtbGal1- and MtBgl3a- mediated bioconversion, respectively. LC-HRMS analysis identified the formation of mono- and di- glycosylated products from stevioside and rebaudioside A. Overall, the results of the present work indicate that both biocatalysts can be exploited for the design of a cost-effective process for the modification of steviol glycosides.
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Affiliation(s)
- Anastasia Zerva
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Koar Chorozian
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Anastasia S Kritikou
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos S Thomaidis
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Evangelos Topakas
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
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Sergio LM, Martins YA, Amaral JL, França VLB, de Freitas CF, Neto AM, Hioka N, Ravanelli MI, Mareze-Costa C, Claudio da Costa S, Freire VN, Brunaldi K. Molecular insight on the binding of stevia glycosides to bovine serum albumin. Chem Biol Interact 2021; 344:109526. [PMID: 34023281 DOI: 10.1016/j.cbi.2021.109526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/09/2021] [Accepted: 05/16/2021] [Indexed: 10/21/2022]
Abstract
The interaction of the steviol and its glycosides (SG), steviolbioside, and rebaudioside A, with bovine serum albumin (BSA) was studied by absorption and fluorescence spectroscopy techniques alongside molecular docking. The stevia derivatives quenched the fluorescence of BSA by a dynamic quenching mechanism, indicating the interaction between the stevia derivatives and BSA. The binding constant (Kb) of steviol was 100-1000-fold higher than those of SG. The stevia derivative/BSA binding reaction was spontaneous and involved the formation of hydrogen bonds and van der Waals interactions between steviol and steviolbioside with BSA, and water reorganization around the rebaudioside A/BSA complex. Molecular docking pointed out the FA1 and FA9 binding sites of BSA as the probable binding sites of steviol and SG, respectively. In conclusion, steviol enhanced hydrophobicity and small size compared to SG may favor its binding to BSA. As steviol and its glycosides share binding sites on BSA with free fatty acids and drugs, they may be competitively displaced from plasma albumin under various physiological states or disease conditions. These findings are clinically relevant and provide an insight into the pharmacokinetics and pharmacodynamics of the stevia glycosides.
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Affiliation(s)
- Luciana M Sergio
- Departamento de Ciências Fisiológicas, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | - Yandara A Martins
- Departamento de Ciências Fisiológicas, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | - Jackson L Amaral
- Departamento de Física, Universidade Federal Do Ceará, Fortaleza, 60440-900, Brazil
| | - Victor L B França
- Departamento de Física, Universidade Federal Do Ceará, Fortaleza, 60440-900, Brazil
| | - Camila F de Freitas
- Departamento de Química, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | - Antônio Medina Neto
- Departamento de Física, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | - Noboru Hioka
- Departamento de Química, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | - Maria I Ravanelli
- Departamento de Ciências Fisiológicas, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | - Cecília Mareze-Costa
- Departamento de Ciências Fisiológicas, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil
| | | | - Valder N Freire
- Departamento de Física, Universidade Federal Do Ceará, Fortaleza, 60440-900, Brazil
| | - Kellen Brunaldi
- Departamento de Ciências Fisiológicas, Universidade Estadual de Maringá, Maringá, 87020-900, Brazil.
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Reaction coupling separation for isosteviol production from stevioside catalyzed by acidic ion-exchange resin. Bioprocess Biosyst Eng 2020; 44:151-159. [PMID: 32860147 DOI: 10.1007/s00449-020-02431-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 08/17/2020] [Indexed: 10/23/2022]
Abstract
Isosteviol, a prodrug used to be obtained via Wagner-Meerwein rearrangement from steviol with low yield and long reaction time. Herein, an in-situ separation-coupling-reaction is presented to prepare isosteviol from the natural sweetener stevioside. Simply with in-situ water-washing, the product containing 92.98% purity of isosteviol was obtained with a stevioside conversion of 97.23% from a packet bed reactor without further separation. Within the assayed inorganic acid, organic acids and acidic ionic liquids, the acidic ion-exchange resins provided higher product specificity towards isosteviol. Furthermore, comparing to 5-Fluorouracil, the product presented similar and even stronger inhibition on proliferation of the assayed human cancer cells in a time and dose-dependence by causing cell phase arrest. Isosteviol treatment caused G1 arrest on SGC-7901, HCT-8 and HCT-116 cells, S arrest on HepG2, Huh-7 and HepG3B cells, and G2 arrest on MGC-803 cells, respectively. Reaction coupling separation for isosteviol production catalyzed by acidic ion-exchange resin.
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Myint KZ, Chen JM, Zhou ZY, Xia YM, Lin J, Zhang J. Structural dependence of antidiabetic effect of steviol glycosides and their metabolites on streptozotocin-induced diabetic mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:3841-3849. [PMID: 32297310 DOI: 10.1002/jsfa.10421] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Stevia has been proposed as a potential antidiabetic sweetener, mainly based on inconsistent results from stevioside or the plant extract, yet lacking relative experimental evidence from individual steviol glycosides (SGs) and their metabolites. RESULTS The results systematically revealed that the typical SGs and their final metabolite (steviol) presented an antidiabetic effect on streptozotocin (STZ) diabetic mice in all assayed antidiabetic aspects. In general, the performance strength of the samples followed the sequence steviol > steviol glucosyl ester > steviolbioside > rubusoside > stevioside > rebaudioside A, which is opposite to their sweetness strength order, and generally in accordance with the glucosyl group numbers in their molecules. This may imply that the antidiabetic effect of the SGs might be achieved through steviol, which presented antidiabetic performance similar to that of metformin with a dose of 1/20 that of metformin. Moreover, the 18 F-fluorodeoxyglucose traced micro-PET experiment revealed that stevioside and steviol could increase the uptake of glucose in the myocardium and brain of the diabetic mice within 60 min, and decrease the accumulation of glucose in the liver and kidney. CONCLUSIONS The SGs and steviol presented an antidiabetic effect on STZ diabetic mice in all assayed aspects, with an induction time to start the effect of the SGs. Stevioside and steviol could increase uptake of glucose in the myocardium and brain of the diabetic mice, and decrease accumulation of glucose in the liver and kidney. The performance strength of the SGs is generally in accordance with glucosyl group numbers in their molecules.
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Affiliation(s)
- Khaing Zar Myint
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Jun-Ming Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhuo-Yu Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Yong-Mei Xia
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Jianguo Lin
- Key Laboratory of Nuclear Medicine of Ministry of Health, Jiangsu Institute of Nuclear Medicine, Wuxi, China
| | - Jue Zhang
- Key Laboratory of Nuclear Medicine of Ministry of Health, Jiangsu Institute of Nuclear Medicine, Wuxi, China
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Steviol glycosides profile in Stevia rebaudiana Bertoni hairy roots cultured under oxidative stress-inducing conditions. Appl Microbiol Biotechnol 2020; 104:5929-5941. [PMID: 32468157 DOI: 10.1007/s00253-020-10661-5] [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: 01/14/2020] [Revised: 04/01/2020] [Accepted: 04/30/2020] [Indexed: 12/25/2022]
Abstract
The ability to synthesize particular steviol glycosides (SvGls) was studied in Stevia rebaudiana Bertoni hairy roots (HR) grown in the light or in the dark under the influence of different osmotic active compounds. Manipulation of culture conditions led to changes in the morphology and growth rate of HR, as well as to an increase in oxidative stress manifested as an enhancement in endogenous hydrogen peroxide concentration in the cultured samples. The highest level of H2O2 was noted in HR cultured under light or in the medium with the highest osmotic potential. This correlated with the highest increase in the expression level of ent-kaurenoic acid hydroxylase, responsible for the redirection of metabolic route to SvGls biosynthesis pathway. An analysis of transcriptional activity of some UDPglucosyltransferase (UGT85c2, UGT74g1, UGT76g1) revealed that all of them were upregulated due to the manipulation of culture conditions. However, the level of their upregulation depended on the type of stress factor used in our experiment. Analysis of SvGls content revealed that HR grown under all applied conditions were able to synthesize and accumulate several SvGls but their concentration differed between the samples across the different conditions. The level of rebaudioside A concentration exceeded the content of stevioside in HR in all tested conditions. Concomitantly, the presence of some minor SvGls, such as steviolbioside and rebaudioside F, was confirmed only in HR cultured in the lowest osmotic potential of the medium while rebaudioside D was also detected in the samples cultured in the media supplemented with NaCl or PEG.Key Points● Several steviol glycosides are synthesized in hairy roots of S. rebaudiana.● Light or osmotic factors cause enhancement in oxidative stress level in hairy roots.● It correlates with a significant increase in the level of KAH expression.● UGTs expression and steviol glycosides content depends on culture conditions.
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Guo Q, Zhang T, Wang N, Xia Y, Zhou Z, Wang JR, Mei X. RQ3, A Natural Rebaudioside D Isomer, Was Obtained from Glucosylation of Rebaudioside A Catalyzed by the CGTase Toruzyme 3.0 L. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8020-8028. [PMID: 31259548 DOI: 10.1021/acs.jafc.9b02545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, a monoglucosyl rebaudioside A product was isolated from the mixture of glucosylated rebaudioside A obtained from the most reported and industrial used cyclodextrin glycosyl transferase, Toruzyme 3.0 L (CGTase, Toruzyme 3.0 L). The molecular structure of the monoglucosyl rebaudioside A was characterized using LC-MS/MS and methylation analysis combined with 1D and 2D NMR, indicating that it is 13-[(2-O-(3-α-O-D-glucopyranosyl)-β-D-glucopyranosyl-3-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid β-D-glucopyranosyl ester (also known as RQ3, which naturally exists in Stevia extract as an isomer of rebaudioside D). This study may help to further understand the reaction mechanism of glucosylation of steviol glycoside assisted by Toruzyme 3.0 L in the aspect of molecule linkage pattern, and also benefit the application of the glucosylated rebaudiosides.
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Affiliation(s)
- Qingbin Guo
- State Key Laboratory of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 , China
- State Key Laboratory of Food Nutrition and Safety , Tianjin University of Science and Technology, Ministry of Education , Tianjin 300457 , China
| | - Tongtong Zhang
- State Key Laboratory of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 , China
- School of Chemical and Materials Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Nifei Wang
- State Key Laboratory of Food Nutrition and Safety , Tianjin University of Science and Technology, Ministry of Education , Tianjin 300457 , China
| | - Yongmei Xia
- State Key Laboratory of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 , China
- School of Chemical and Materials Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Zhuoyu Zhou
- State Key Laboratory of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 , China
- School of Chemical and Materials Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medical , Chinese Academy of Sciences , Shanghai 201203 , China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medical , Chinese Academy of Sciences , Shanghai 201203 , China
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12
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Boonkaew B, Udompaisarn S, Arthan D, Somana J. Expression and characterization of a recombinant stevioside hydrolyzing β-glycosidase from Enterococcus casseliflavus. Protein Expr Purif 2019; 163:105449. [PMID: 31295559 DOI: 10.1016/j.pep.2019.105449] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/07/2019] [Accepted: 07/07/2019] [Indexed: 12/23/2022]
Abstract
The demand for steviol glycosides, non-caloric sweet components of Stevia rebaudiana Bertoni (stevia) leaves, has increased considerably as a benefit to enhance human health. However, the supply has remained challenging due to limited production, with the lack of a specific steviol glycoside hydrolyzing enzyme. In this study, a novel β-glucosidase (EcBgl) from Enterococcus casseliflavus was cloned and expressed in Escherichia coli. An EcBgl consists of 721 amino acids corresponding to a molecular mass of 79.37 kDa. The EcBgl was purified to homogeneity, followed by enzyme characterization. The enzyme showed optimum pH and temperature at 6.0 and 37 °C, and exhibited the kinetic constants kcat/Km for pNPG and kcat/Km for stevioside of 8583 mM-1s-1 and 95.41 mM-1s-1, respectively. When compared to the stevioside hydrolyzing β-glycosidases previously reported, EcBgl was found to be the most efficient enzyme. EcBgl also rendered hydrolysis of the stevioside to produce rubusoside, a rare steviol glycoside with a pharmaceutical solubilizing property, by cleaving at the glucose moiety. In addition, the enzyme demonstrated substantial resistance against amygdalin, so it served as a potential enzyme in agricultural and pharmaceutical applications.
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Affiliation(s)
- Bootsakorn Boonkaew
- Siriraj Center for Regenerative Medicine, Siriraj Hospital, Mahidol University, Wanglang Road, Bangkok, 10700, Thailand
| | - Somsiri Udompaisarn
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Paholyothin Road, Pathumthani, 12120, Thailand
| | - Dumrongkiet Arthan
- Department of Tropical Nutrition & Food Science, Faculty of Tropical Medicine, Mahidol University, Rachawithi Road, Bangkok, 10400, Thailand
| | - Jamorn Somana
- Department of Biochemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400, Thailand.
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13
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Lan Q, Tang T, Yin Y, Qu X, Wang Z, Pang H, Huang R, Du L. Highly specific sophorose β-glucosidase from Sphingomonas elodea ATCC 31461 for the efficient conversion of stevioside to rubusoside. Food Chem 2019; 295:563-568. [PMID: 31174796 DOI: 10.1016/j.foodchem.2019.05.164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/17/2019] [Accepted: 05/23/2019] [Indexed: 10/26/2022]
Abstract
Enzyme specificity and particularity is needed not only in enzymatic separation methods, but also in enzymatic determination methods for plant compound extraction. Stevioside, rubusoside, and rebaudioside A are natural sweet compounds from plants. These compounds have the same skeleton and only contain different side-chain glucosyl groups, making them difficult to separate. However, enzymes that target diterpenoid compounds and show specific activity for side-chain glucosyl groups are rare. Herein, we report the identification and characterization of an enzyme that can target both diterpenoid compounds and sophorose, namely, β-glucosidase SPBGL1 from Sphingomonas elodea ATCC 31461. SPBGL1 displayed high specificity toward sophorose, and activity toward stevioside, but not rebaudioside A. The stevioside conversion rate was 98%. SPBGL1 also operated at high substrate concentrations, such as in 50% crude steviol glycoside extract. Glucose liberated from stevioside was easy to quantify using the glucose oxidase method, allowing the stevioside content to be determined.
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Affiliation(s)
- Qing Lan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China
| | - Tingting Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China
| | - Yu Yin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China
| | - XiaoYi Qu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China
| | - Zilong Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China
| | - Hao Pang
- National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Key Laboratory of Bio-refinery, Guangxi Academy of Sciences, Daling Road No. 98, Nanning, Guangxi 530007, China.
| | - Ribo Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China
| | - Liqin Du
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzymatic Technology, College of Life Science and Technology, Guangxi University, Daxue Road No. 100, Nanning, Guangxi 530005, China.
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14
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Nguyen TTH, Seo C, Kwak SH, Kim J, Kang HK, Kim SB, Kim D. Enzymatic Production of Steviol Glucosides Using β-Glucosidase and Their Applications. ENZYMES IN FOOD BIOTECHNOLOGY 2019. [PMCID: PMC7149536 DOI: 10.1016/b978-0-12-813280-7.00023-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Sweet leaf, Stevia rebaudiana Bertoni, is a perennial plant species widely known for its sweet-tastingent-kaurene type diterpenoid glycosides (steviol glucosides). Steviol glucosides include rubusoside (Ru), stevioside (Ste), and rebaudioside (Reb), which have immunomodulatory capability and protective effects against hyperglycemia, hypertension, inflammation, tumors, and diarrhea. In addition, they can enhance the solubility of epotoside, liquiritin, paclitaxel, curcuminoids, quercetin, and wheat bran flavonoids, thus increasing their permeability. The hydrolysis of three glucosyl groups at positions C13 and C19 of Ste will produce steviolbioside, steviol, isosteviol, steviol mono-glucoside, or Ru. S. rebaudiana contains these hydrolyzed products in trace amounts. This chapter describes recent advances in the preparation of various steviol glycosides from Ste by using different β-glycosidases, with particular focus on their potential industrial applications as natural solubilizers of insoluble compounds. Furthermore, the reaction mechanism of β-glycosidases and their kinetic properties are summarized.
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Affiliation(s)
- Thi Thanh Hanh Nguyen
- The Institute of Food Industrialization, Institutes of Green Bio Science and Technology, Seoul National University, Pyeongchang-gun, South Korea
| | - Changseop Seo
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang-gun, South Korea
| | - So-Hyung Kwak
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang-gun, South Korea
| | - Jeesoo Kim
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang-gun, South Korea
| | - Hee-Kyoung Kang
- Department of Biomedical Science, Chosun University, Gwangju, South Korea
| | - Seong-Bo Kim
- CJ CheilJedang, Life Ingredient and Material Research Institute, Suwon, South Korea
| | - Doman Kim
- The Institute of Food Industrialization, Institutes of Green Bio Science and Technology, Seoul National University, Pyeongchang-gun, South Korea,Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang-gun, South Korea
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15
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Enzymatic production of steviol using a commercial β-glucosidase and preparation of its inclusion complex with γ-CD. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0868-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Dooley J, Lagou V, Dresselaers T, van Dongen KA, Himmelreich U, Liston A. No Effect of Dietary Aspartame or Stevia on Pancreatic Acinar Carcinoma Development, Growth, or Induced Mortality in a Murine Model. Front Oncol 2017; 7:18. [PMID: 28232906 PMCID: PMC5298959 DOI: 10.3389/fonc.2017.00018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/25/2017] [Indexed: 11/25/2022] Open
Abstract
Pancreatic cancer has an extremely poor prognosis, largely due to a poor record for early detection. Known risk factors for pancreatic cancer include obesity, diet, and diabetes, implicating glucose consumption and regulation as a key player. The role of artificial sweeteners may therefore be pertinent to disease kinetics. The oncogenic impact of artificial sweeteners is a highly controversial area. Aspartame, one of the most studied food additives, is widely recognized as being generally safe, although there are still specific areas where research is incomplete due to study limitations. Stevia, by contrast, has been the subject of relatively few studies, and the potential health benefits are based on extrapolation rather than direct testing. Here, we used longitudinal tracking of pancreatic acinar carcinoma development, growth, and lethality in a sensitized mouse model. Despite exposure to aspartame and stevia from the in utero stage onward, we found no disease modification activity, in either direction. These results contribute to the data on aspartame and stevia safety, while also reducing confidence in several of the purported health benefits.
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Affiliation(s)
- James Dooley
- Translational Immunology Laboratory, VIB, Leuven, Belgium; Department of Microbiology and Immunology, KU Leuven - University of Leuven, Leuven, Belgium
| | - Vasiliki Lagou
- Translational Immunology Laboratory, VIB, Leuven, Belgium; Department of Microbiology and Immunology, KU Leuven - University of Leuven, Leuven, Belgium
| | - Tom Dresselaers
- Biomedical MRI/MoSAIC, Department of Imaging and Pathology, KU Leuven - University of Leuven , Leuven , Belgium
| | - Katinka A van Dongen
- Translational Immunology Laboratory, VIB, Leuven, Belgium; Department of Microbiology and Immunology, KU Leuven - University of Leuven, Leuven, Belgium
| | - Uwe Himmelreich
- Biomedical MRI/MoSAIC, Department of Imaging and Pathology, KU Leuven - University of Leuven , Leuven , Belgium
| | - Adrian Liston
- Translational Immunology Laboratory, VIB, Leuven, Belgium; Department of Microbiology and Immunology, KU Leuven - University of Leuven, Leuven, Belgium
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17
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Gerwig GJ, Te Poele EM, Dijkhuizen L, Kamerling JP. Stevia Glycosides: Chemical and Enzymatic Modifications of Their Carbohydrate Moieties to Improve the Sweet-Tasting Quality. Adv Carbohydr Chem Biochem 2016; 73:1-72. [PMID: 27816105 DOI: 10.1016/bs.accb.2016.05.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Stevia glycosides, extracted from the leaves of the plant Stevia rebaudiana Bertoni, display an amazing high degree of sweetness. As processed plant products, they are considered as excellent bio-alternatives for sucrose and artificial sweeteners. Being noncaloric and having beneficial properties for human health, they are the subject of an increasing number of studies for applications in food and pharmacy. However, one of the main obstacles for the successful commercialization of Stevia sweeteners, especially in food, is their slight bitter aftertaste and astringency. These undesirable properties may be reduced or eliminated by modifying the carbohydrate moieties of the steviol glycosides. A promising procedure is to subject steviol glycosides to enzymatic glycosylation, thereby introducing additional monosaccharide residues into the molecules. Depending on the number and positions of the monosaccharide units, the taste quality and sweetness potency of the compounds will vary. Many studies have been performed already, and this review summarizes the structures of native steviol glycosides and the recent data of modifications of the carbohydrate moieties that have been published to provide an overview of the current progress.
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Affiliation(s)
- Gerrit J Gerwig
- Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
| | - Evelien M Te Poele
- Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
| | - Lubbert Dijkhuizen
- Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
| | - Johannis P Kamerling
- Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
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