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García-Villalba WG, Rodríguez-Herrera R, Ochoa-Martínez LA, Rutiaga-Quiñones OM, Gallegos-Infante JA, González-Herrera SM. Agave fructans: a review of their technological functionality and extraction processes. J Food Sci Technol 2023; 60:1265-1273. [PMID: 36936110 PMCID: PMC10020391 DOI: 10.1007/s13197-022-05375-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/12/2021] [Accepted: 01/14/2022] [Indexed: 10/19/2022]
Abstract
Fructans are a polydisperse mixture of fructose polymers generally bound to a glucose molecule, in recent years, interest in their use has grown, either as a potential ingredient in functional foods or for their technological properties. The diversity of its applications lies in its structure and origin. Until now, the scientific approach has been more focused on inulin-type fructans and not so much on the effect of those of mixed branched structure as agave fructans. These have a complex structure with the presence of β (2 - 1) and β (2 - 6) bonds that give it prebiotic properties. In this context, a review is made of the general processes of extraction of agave fructans, as well as their technological functionality in the obtaining of base structures for the development of food products.
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Affiliation(s)
- Wendy Guadalupe García-Villalba
- Departamentos de Ingenierías Química y Bioquímica, Tecnológico Nacional De México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. C.P. 34080, Durango, Dgo, México
| | - Raúl Rodríguez-Herrera
- Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza e Ing. José Cárdenas S/N Col. Republica Saltillo Coahuila, Saltillo, Mexico
| | - Luz Araceli Ochoa-Martínez
- Departamentos de Ingenierías Química y Bioquímica, Tecnológico Nacional De México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. C.P. 34080, Durango, Dgo, México
| | - Olga Miriam Rutiaga-Quiñones
- Departamentos de Ingenierías Química y Bioquímica, Tecnológico Nacional De México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. C.P. 34080, Durango, Dgo, México
| | - José Alberto Gallegos-Infante
- Departamentos de Ingenierías Química y Bioquímica, Tecnológico Nacional De México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. C.P. 34080, Durango, Dgo, México
| | - Silvia Marina González-Herrera
- Departamentos de Ingenierías Química y Bioquímica, Tecnológico Nacional De México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. C.P. 34080, Durango, Dgo, México
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Pieber TR, Svehlikova E, Mursic I, Esterl T, Wargenau M, Sartorius T, Pauly L, Schwejda-Guettes S, Neumann A, Faerber V, Stover JF, Gaigg B, Kuchinka-Koch A. Blood glucose response after oral lactulose intake in type 2 diabetic individuals. World J Diabetes 2021; 12:893-907. [PMID: 34168736 PMCID: PMC8192256 DOI: 10.4239/wjd.v12.i6.893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/07/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Lactulose is approved for the symptomatic treatment of constipation, a gastrointestinal (GI) complication common in individuals with diabetes. Lactulose products contain carbohydrate impurities (e.g., lactose, fructose, galactose), which occur during the lactulose manufacturing process. These impurities may affect the blood glucose levels of individuals with type 2 diabetes mellitus (T2DM) using lactulose for the treatment of mild constipation. A previous study in healthy subjects revealed no increase in blood glucose levels after oral lactulose intake. However, it is still unclear whether the intake of lactulose increases blood glucose levels in individuals with diabetes.
AIM To evaluate the blood glucose profile after oral lactulose intake in mildly constipated, non-insulin-dependent subjects with T2DM in an outpatient setting.
METHODS This prospective, double-blind, randomized, controlled, single-center trial was conducted at the Clinical Research Center at the Medical University of Graz, Austria, in 24 adult Caucasian mildly constipated, non-insulin-dependent subjects with T2DM. Eligible subjects were randomized and assigned to one of six treatment sequences, each consisting of four treatments stratified by sex using an incomplete block design. Subjects received a single dose of 20 g or 30 g lactulose (crystal and liquid formulation), water as negative control or 30 g glucose as positive control. Capillary blood glucose concentrations were measured over a period of 180 min post dose. The primary endpoint was the baseline-corrected area under the curve of blood glucose concentrations over the complete assessment period [AUCbaseline_c (0-180 min)]. Quantitative comparisons were performed for both lactulose doses and formulations vs water for the equal lactulose dose vs glucose, as well as for liquid lactulose vs crystal lactulose. Safety parameters included GI tolerability, which was assessed at 180 min and 24 h post dose, and adverse events occurring up to 24 h post dose.
RESULTS In 24 randomized and analyzed subjects blood glucose concentration-time curves after intake of 20 g and 30 g lactulose were almost identical to those after water intake for both lactulose formulations despite the different amounts of carbohydrate impurities (≤ 3.0% for crystals and approx. 30% for liquid). The primary endpoint [AUCbaseline_c (0-180 min)] was not significantly different between lactulose and water regardless of lactulose dose and formulation. Also with regard to all secondary endpoints lactulose formulations showed comparable results to water with one exception concerning maximum glucose level. A minor increase in maximum blood glucose was observed after the 30 g dose, liquid lactulose, in comparison to water with a mean treatment difference of 0.63 mmol/L (95% confidence intervals: 0.19, 1.07). Intake of 30 g glucose significantly increased all blood glucose endpoints vs 30 g liquid and crystal lactulose, respectively (all P < 0.0001). No differences in blood glucose response were observed between the different lactulose formulations. As expected, lactulose increased the number of bowel movements and was generally well tolerated. Subjects experienced only mild to moderate GI symptoms due to the laxative action of lactulose.
CONCLUSION Blood glucose AUCbaseline_c (0-180 min) levels in mildly constipated, non-insulin dependent subjects with T2DM are not affected by the carbohydrate impurities contained in 20 g and 30 g crystal or liquid lactulose formulations.
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Affiliation(s)
- Thomas R Pieber
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz 8036, Austria
| | - Eva Svehlikova
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz 8036, Austria
| | - Ines Mursic
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz 8036, Austria
| | - Tamara Esterl
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz 8036, Austria
| | - Manfred Wargenau
- Department of Statistic, M.A.R.C.O. GmbH & Co. KG, Institute for Clinical Research and Statistics, Düsseldorf 40211, Germany
| | - Tina Sartorius
- Department of Nutritional CRO, BioTeSys GmbH, Esslingen 73728, Germany
| | - Lioba Pauly
- Department of Medical & Clinical Affairs, Market Access & Education Business Unit Enteral Nutrition, Bad Homburg 61352, Germany
| | - Susann Schwejda-Guettes
- Department of Medical & Clinical Affairs, Market Access & Education Business Unit Enteral Nutrition, Bad Homburg 61352, Germany
| | - Annalena Neumann
- Department of Medical, Clinical & Regulatory Affairs, Business Unit Parenteral Nutrition, Keto-Analogues and Standard I.V. Fluids, Fresenius Kabi Deutschland GmbH, Bad Homburg 61352, Germany
| | - Valentin Faerber
- Department of Medical, Clinical & Regulatory Affairs, Business Unit Parenteral Nutrition, Keto-Analogues and Standard I.V. Fluids, Fresenius Kabi Deutschland GmbH, Bad Homburg 61352, Germany
| | | | - Barbara Gaigg
- Market Unit Lactulose, Fresenius Kabi Austria GmbH, Linz 4020, Austria
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Shah P, Wolever TM, Jenkins AL, Ezatagha A, Campbell J, Zurbau A, Jain M, Gote M, Bhaduri A, Mullick A. Acute glycemic and insulin response of Fossence™ alone, or when substituted or added to a carbohydrate challenge: A three-phase, acute, randomized, cross-over, double blind clinical trial. Heliyon 2021; 7:e06805. [PMID: 33997376 PMCID: PMC8102419 DOI: 10.1016/j.heliyon.2021.e06805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/13/2020] [Accepted: 04/10/2021] [Indexed: 10/26/2022] Open
Abstract
Short chain fructo-oligosaccharides (scFOS) are well-recognized prebiotic fibers. Fossence™ (FOSS) is a scFOS that has been produced from sucrose via a proprietary fermentation process and has not been tested for its digestibility or glucose/insulin response (GR and IR, respectively). The present randomized, controlled, cross-over study was conducted in 3 phases to explore GR and IR to ingestion of FOSS, when replaced by/added to available-carbohydrates (avCHO) among 25 healthy adults (40 ± 14years). In each phase GR and IR elicited by 3-4 test-meals were measured among the fasted recruited subjects. The interventional test meals were as follows: Phase-1, water alone or 10g FOSS or 10g Dextrose in 250ml water; Phase-2, 250ml water containing Dextrose:FOSS (g:g) in the content as 50:0 or 50:15 or 35:0 or 35:15; Phase-3 portions of white-bread (WB) containing avCHO:FOSS (g:g) in the content as 50:0 or 50:15 or 35:0 or 35:15. Blood samples (finger prick method) were collected at fasting and 15, 30, 45, 60, 90 and 120 min after start of test meal ingestion. Plasma glucose and serum insulin were analyzed utilizing standard methods. The primary endpoint was differences in glucose IAUC. All subjects provided their written consent to participate in the study (ClinicalTrials.gov: NCT03755232). The results demonstrated that FOSS, when consumed alone, showed no raise in glycaemia or insulinemia and was statistically equivalent to response of water alone. GR and IR elicited by dextrose:FOSS and WB:FOSS test-meals of Phase 2 and Phase 3, were statistically equivalent to the respective test-meals without FOSS. Result of the 3 phases support the hypothesis that FOSS is resistant to breakdown and is indigestible in the human small-intestine, and therefore can be classified as an unavailable carbohydrate that does not raise post prandial blood glucose or insulin. FOSS, being sweet to taste, may be an acceptable sugar replacer in beverages without compromising their taste and sensory qualities.
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Affiliation(s)
- Priyali Shah
- Tata Chemicals Ltd-Innovation Centre, Pune, Maharashtra, India
| | | | | | | | | | | | - Manish Jain
- Tata Chemicals Ltd-Innovation Centre, Pune, Maharashtra, India
| | - Manoj Gote
- Tata Chemicals Ltd-Innovation Centre, Pune, Maharashtra, India
| | - Anirban Bhaduri
- Tata Chemicals Ltd-Innovation Centre, Pune, Maharashtra, India
| | - Ashim Mullick
- Tata Consumer Products Ltd (formerly at Tata Chemicals Ltd-Innovation Centre), Pune, Maharashtra, India
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Larosa CP, Balthazar CF, Guimarães JT, Margalho LP, Lemos FS, Oliveira FL, Abud YKD, Sant'Anna C, Duarte MCKH, Granato D, Raices RSL, Freitas MQ, Sant'Ana AS, Almeida Esmerino E, Pimentel TC, Cristina Silva M, Cruz AG. Can sucrose-substitutes increase the antagonistic activity against foodborne pathogens, and improve the technological and functional properties of sheep milk kefir? Food Chem 2021; 351:129290. [PMID: 33631613 DOI: 10.1016/j.foodchem.2021.129290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/25/2022]
Abstract
The effect of different types of sugar (sucrose, demerara, brown, fructose, coconut sugar, and honey) on sheep milk kefir was evaluated. Microbial counts (Lactobacillus, Lactococcus, Leuconostoc, yeast), antagonistic activity against foodborne pathogens, microstructure (scanning electron microscopy), and antiproliferative activity of cancer cells were evaluated. Furthermore, the antioxidant activity (DPPH), inhibitory activity of angiotensin-converting enzyme (ACE), α-amylase, and α-glucosidase, lactose content, lactic and acetic acids and ethanol, fatty acid profile and volatile organic compounds were determined. The addition of sugars increased the Lactobacillus population (up to 2.24 log CFU/mL), metabolites concentration, antagonistic activity against pathogens, antioxidant activity (11.1 to 24.1%), ACE inhibitory activity (27.5 to 37.6%), α-amylase inhibition (18 to 37.4%), and anti-proliferative activity. Furthermore, it improved the fatty acid profile and volatile compounds. The results suggest that the replacement of sucrose with different types of sugar constitute an interesting option to be used in sheep milk kefir formulations.
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Affiliation(s)
- Cristiane P Larosa
- Federal Institute of Science and Technology Rio de Janeiro, Food Department, 20270-021 Rio de Janeiro, Brazil
| | - Celso F Balthazar
- Federal Fluminense University, Faculty of Veterinary, 24230-340 Niterói, RJ, Brazil
| | - Jonas T Guimarães
- Federal Fluminense University, Faculty of Veterinary, 24230-340 Niterói, RJ, Brazil
| | - Larissa P Margalho
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Felipe S Lemos
- Federal University of Rio de Janeiro, Institute of Biomedical Sciences, 21941-902 Rio de Janeiro, Brazil
| | - Felipe L Oliveira
- Federal University of Rio de Janeiro, Institute of Biomedical Sciences, 21941-902 Rio de Janeiro, Brazil
| | - Yuri K D Abud
- Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, 25250-020 Rio de Janeiro, Brazil
| | - Celso Sant'Anna
- Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, 25250-020 Rio de Janeiro, Brazil
| | | | - Daniel Granato
- Food Processing and Quality, Production Systems Unit, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790 Helsinki, Finland
| | - Renata S L Raices
- Federal Institute of Science and Technology Rio de Janeiro, Food Department, 20270-021 Rio de Janeiro, Brazil
| | - Monica Q Freitas
- Federal Fluminense University, Faculty of Veterinary, 24230-340 Niterói, RJ, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
| | - Erick Almeida Esmerino
- Federal Fluminense University, Faculty of Veterinary, 24230-340 Niterói, RJ, Brazil; Federal Rural University of Rio de Janeiro, 23890-000, Seropédica, Rio de Janeiro, Brazil
| | | | - Marcia Cristina Silva
- Federal Institute of Science and Technology Rio de Janeiro, Food Department, 20270-021 Rio de Janeiro, Brazil
| | - Adriano G Cruz
- Federal Fluminense University, Faculty of Veterinary, 24230-340 Niterói, RJ, Brazil.
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5
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Steudle J, Schön C, Wargenau M, Pauly L, Schwejda-Güttes S, Gaigg B, Kuchinka-Koch A, Stover JF. Blood glucose response after oral intake of lactulose in healthy volunteers: A randomized, controlled, cross-over study. World J Gastrointest Pharmacol Ther 2018; 9:22-30. [PMID: 30090645 PMCID: PMC6081387 DOI: 10.4292/wjgpt.v9.i3.22] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/03/2018] [Accepted: 07/16/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate possible changes of blood glucose levels after oral intake of lactulose in healthy subjects.
METHODS The study was performed as prospective, randomized, two-part study with 4-way cross-over design with n = 12 in each study arm. Capillary blood glucose levels were determined over a time period of 180 min after intake of a single dose of 10 g or 20 g lactulose provided as crystal or liquid formulation. During the manufacturing process of lactulose, impurities with sugars (e.g., lactose, fructose, galactose) occur. Water and 20 g glucose were used as control and reference. Because lactulose is used as a functional food ingredient, it may also be consumed by people with impaired glucose tolerance, including diabetics. Therefore, it is of interest to determine whether the described carbohydrate impurities may increase blood glucose levels after ingestion.
RESULTS The blood glucose concentration-time curves after intake of 10 g lactulose, 20 g lactulose, and water were almost identical. None of the three applications showed any changes in blood glucose levels. After intake of 20 g glucose, blood glucose concentration increased by approximately 3 mmol/L (mean Cmax = 8.3 mmol/L), reaching maximum levels after approximately 30 min and returning to baseline within approximately 90 min, which was significantly different to the corresponding 20 g lactulose formulations (P < 0.0001). Comparing the two lactulose formulations, crystals and liquid, in the dosage of 10 g and 20 g, there was no difference in the blood glucose profile and calculated pharmacokinetic parameters despite the different amounts of carbohydrate impurities (1.5% for crystals and 26.45% for liquid). Anyhow, the absolute amount of single sugars was low with 0.3 g in crystals and 5.29 g in liquid formulation in the 20 g dosages. Lactulose was well tolerated by most volunteers, and only some reported mild to moderate mainly gastrointestinal side effects.
CONCLUSION The unchanged blood glucose levels after lactulose intake in healthy subjects suggest its safe use in subjects with impaired glucose tolerance.
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Affiliation(s)
| | | | - Manfred Wargenau
- M.A.R.C.O. GmbH and Co. KG, Institute for Clinical Research and Statistics, Düsseldorf 40211, Germany
| | - Lioba Pauly
- Fresenius Kabi Deutschland GmbH, Oberursel 61440, Germany
| | | | | | | | - John F Stover
- Fresenius Kabi Deutschland GmbH, Oberursel 61440, Germany
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Siemen A, Kosciow K, Schweiger P, Deppenmeier U. Production of 5-ketofructose from fructose or sucrose using genetically modified Gluconobacter oxydans strains. Appl Microbiol Biotechnol 2017; 102:1699-1710. [PMID: 29279957 DOI: 10.1007/s00253-017-8699-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 01/14/2023]
Abstract
The growing consumer demand for low-calorie, sugar-free foodstuff motivated us to search for alternative non-nutritive sweeteners. A promising sweet-tasting compound is 5-keto-D-fructose (5-KF), which is formed by membrane-bound fructose dehydrogenases (Fdh) in some Gluconobacter strains. The plasmid-based expression of the fdh genes in Gluconobacter (G.) oxydans resulted in a much higher Fdh activity in comparison to the native host G. japonicus. Growth experiments with G. oxydans fdh in fructose-containing media indicated that 5-KF was rapidly formed with a conversion efficiency of 90%. 5-KF production from fructose was also observed using resting cells with a yield of about 100%. In addition, a new approach was tested for the production of the sweetener 5-KF by using sucrose as a substrate. To this end, a two-strain system composed of the fdh-expressing strain and a G. oxydans strain that produced the sucrose hydrolyzing SacC was developed. The strains were co-cultured in sucrose medium and converted 92.5% of the available fructose units into 5-KF. The glucose moiety of sucrose was converted to 2-ketogluconate and acetate. With regard to the development of a sustainable and resource-saving process for the production of 5-KF, sugar beet extract was used as substrate for the two-strain system. Fructose as product from sucrose cleavage was mainly oxidized to 5-KF which was detected in a concentration of over 200 mM at the end of the fermentation process. In summary, the two-strain system was able to convert fructose units of sugar beet extract to 5-KF with an efficiency of 82 ± 5%.
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Affiliation(s)
| | | | - Paul Schweiger
- Department of Microbiology, University of Wisconsin-La Crosse, 1725 State Street, La Crosse, WI, 54601, USA
| | - Uwe Deppenmeier
- Institute of Microbiology and Biotechnology, University of Bonn, Meckenheimer Allee 168, 53115, Bonn, Germany.
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Abstract
BACKGROUND One promising way of reducing caries is by using sucrose substitutes in food. rubusoside is a prototype sweet substance isolated from the leaves of the plant Rubrus suavissimus S. Lee. (Rosaceae), and is rated sweeter than sucrose. The purpose of this study was to investigate the effects of rubusoside on Streptococcus mutans growth, acidogenicity, and adherence to glass in vitro. METHODS The effects of rubusoside on the growth and glass surface adhering of Streptococcus mutans were investigated by measuring the optical density of the culture at 540 nm with a spectrophotometer. Rubusoside influence on Streptococcus mutans acidogenicity was determined by measuring the pH of the culture. Sucrose, glucose, maltose, fructose and xylitol were designed to compare with rubusoside. RESULTS S. mutans growth in the rubusoside-treated group was significantly lower than that in the sucrose, glucose, maltose and fructose groups (p < 0.05) except for xylitol group (p > 0.05). Sucrose-treated S. mutans exhibited the highest adherence to glass, and rubusoside-treated S. mutans exhibited the lowest. S. mutans adherence to a glass surface and acidogenicity with sucrose were significantly reduced by rubusoside. CONCLUSIONS Rubusoside may have some potential as a non-cariogenic, non-caloric sweetener.
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Affiliation(s)
- Jinpu Chu
- College of Stomatology, Zhengzhou University, Nanyang Road 169-10#, Zhengzhou, 453002, China.
| | - Tieting Zhang
- College of Stomatology, Zhengzhou University, Nanyang Road 169-10#, Zhengzhou, 453002, China
| | - Kexin He
- College of Stomatology, Guangxi Medical University, Shuangyong Road 10#, Nanning, 530021, China
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