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Bressani APP, Casimiro LKS, Martinez SJ, Dias DR, Schwan RF. Kombucha with yam: Comprehensive biochemical, microbiological, and sensory characteristics. Food Res Int 2024; 192:114762. [PMID: 39147483 DOI: 10.1016/j.foodres.2024.114762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 06/09/2024] [Accepted: 07/10/2024] [Indexed: 08/17/2024]
Abstract
Consumer demand for functional foods has increased, helping to popularize and increase the consumption of Kombucha. Other substrates have been used together with tea to improve the functional and sensory properties of the beverage. Thus, this study evaluated the comprehensive biochemical, microbiological, and sensory characteristics of kombuchas fermented with green tea (Camellia sinensis) and different concentrations of yam (0, 10, and 20 % w/v). Based on pre-tests to detect the best concentration of yam in the beverage (10, 20, 30, and 40 %) and fermentation time (5, 7, and 14 days),the concentrations of 10 and 20 % of yam and five days of fermentation were selected through pH, °Brix, and sensory analysis. During the kombucha fermentation, there was a decrease in °Brix and pH. Sucrose, glucose, fructose, citric, and succinic acids were related to the beginning of fermentation, and lactic and acetic acids were more related to the end of fermentation in the treatment containing 20 % yam. The fermentation time did not change the color of the kombucha. Fatty acids, phenols, terpenoids, and alcohols were the volatile groups with the most compounds identified. Only two yeast genera were identified (Brettanomyces bruxellensis and Pichia membranifaciens), and bacteria of the genera Acetobacter, Lactobacillus, Pantoea, Pseudomonas, Azospirillum, and Enterobacter. The beverage control showed less turbidity and more clear. The fruity descriptor was more perceived in treatments with yam. However, the perception of the apple descriptor decreases as the yam concentration increases. The yam's concentration alters the kombucha's microbiota and sensory characteristics, mainly appearance and acidity. Kombucha fermentation using yam extract is viable, and the product is sensorially accepted. However, technological improvements, such as yam flour, could be made mainly for appearance and taste attributes.
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Affiliation(s)
| | | | | | - Disney Ribeiro Dias
- Food Science Department, Federal University of Lavras, CEP 37200-000, Lavras, MG, Brazil.
| | - Rosane Freitas Schwan
- Biology Department, Federal University of Lavras, CEP 37200-000, Lavras, MG, Brazil.
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Prajapati K, Prajapati J, Patel D, Patel R, Varshnei A, Saraf M, Goswami D. Multidisciplinary advances in kombucha fermentation, health efficacy, and market evolution. Arch Microbiol 2024; 206:366. [PMID: 39098983 DOI: 10.1007/s00203-024-04086-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/08/2024] [Accepted: 07/18/2024] [Indexed: 08/06/2024]
Abstract
Kombucha, a fermented tea beverage, has seen a significant rise in global popularity. This increase is attributed to its reported health benefits and extensive cultural heritage. The comprehensive review examines kombucha through microbiology, biochemistry, and health sciences, highlighting its therapeutic potential and commercial viability. Central to kombucha production is the symbiotic culture of bacteria and yeasts (SCOBY), which regulates a complex fermentation process, resulting in a bioactive-rich elixir. The study examines the microbial dynamics of SCOBY, emphasizing the roles of various microorganisms. It focuses the contributions of acetic acid bacteria, lactic acid bacteria, and osmophilic yeasts, including genera such as Saccharomyces, Schizosaccharomyces, Zygosaccharomyces, Brettanomyces/Dekkera, and Pichia. These microorganisms play crucial roles in producing bioactive compounds, including organic acids, polyphenols, and vitamins. These bioactive compounds confer therapeutic properties to kombucha. These properties include antioxidant, antimicrobial, anti-inflammatory, antidiabetic, antihypertensive, cancer prevention, hepatoprotective, and detoxifying effects. The review also explores the growing market for kombucha, driven by consumer demand for functional beverages and opportunities for innovative product development. It emphasizes the necessity of standardized production to ensure safety and validate health claims. Identifying research gaps, the review highlights the importance of clinical trials to verify therapeutic benefits. Ultimately, this study integrates traditional knowledge with scientific research, providing directions for future studies and commercial expansion, emphasizing the role of kombucha in health and wellness.
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Affiliation(s)
- Karan Prajapati
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Jignesh Prajapati
- Department of Biochemistry and Forensic Science, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Dhaval Patel
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
- Department of Research & Development, Latambarcem Brewers Private Limited, Bicholim, Goa, 403503, India
| | - Rohit Patel
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Anish Varshnei
- Department of Research & Development, Latambarcem Brewers Private Limited, Bicholim, Goa, 403503, India
| | - Meenu Saraf
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Dweipayan Goswami
- Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India.
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de Oliveira Duarte FA, Ramos KK, Gini C, Morasi RM, Silva NCC, Efraim P. Microbiological characterization of kombucha and biocellulose film produced with black tea and cocoa bean shell infusion. Food Res Int 2024; 190:114568. [PMID: 38945598 DOI: 10.1016/j.foodres.2024.114568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 05/20/2024] [Accepted: 05/26/2024] [Indexed: 07/02/2024]
Abstract
The food industry is increasingly striving to produce probiotics-based food and beverages using sustainable processes. Therefore, the use of by-products in product development has been investigated by several authors. The aim of this work was to investigate the effects of cocoa bean shell infusion in the production of kombucha through microbiological and genetic characterization. Three beverage formulations were prepared, one based on black tea (KBT), one based on cocoa bean shell infusion (KCS) and one containing 50 % black tea and 50 % cocoa shell infusion (KBL). The infusions were prepared with water, filtered, and sucrose was added. They were then homogenized and a portion of finished kombucha and SCOBY (symbiotic culture of bacteria and yeast) were added. Fermentation took place for 13 days and aliquots were collected every three days for physicochemical and microbial count analyses. Samples from the last day of fermentation were sent for DNA sequencing, extraction and quantification. The results were subjected to analysis of variance and compared by using Tukey's test (p < 0.05). The results show that there was a significant decrease in pH over time in all samples, while the titratable acidity increased, indicating an acidification of the beverage due to the production of organic acids. There was an increase in lactic acid bacterial colonies in all the formulations, which have a probiotic nature and are not always found in this type of beverage. Regarding the taxonomic classification of the samples, microorganisms of the kingdoms Fungi and Bacteria, of the families Saccharomycetaceae and Acetobacteraceae, were found in KBT, KCS and KBL, but with different microbiological compositions, with different amounts of yeasts and bacteria. Therefore, the use of by-products such as cocoa bean shell in the production of kombucha can contribute to the reduction of waste in the food industry and, at the same time, accelerate fermentation increasing the presence of lactic acid bacteria when compared to black tea.
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Affiliation(s)
| | - Kazumi Kawazaki Ramos
- Department of Food Engineering and Technology, Universidade Estadual de Campinas, 13083-862 Campinas, SP, Brazil; Mombora, 05409-000 São Paulo, SP, Brazil
| | - Chiara Gini
- Department of Veterinary Medicine and Animal Sciences, Università Degli Studi di Milano, Lodi, Italy; Centre for Genetic Improvement of Livestock (CGIL), Department of Animal Biosciences, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Rafaela Martins Morasi
- Department of Food Science and Nutrition, Universidade Estadual de Campinas, 13083-862 Campinas, SP, Brazil
| | | | - Priscilla Efraim
- Department of Food Engineering and Technology, Universidade Estadual de Campinas, 13083-862 Campinas, SP, Brazil.
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de Santana Khan S, Bordin Vieira V, Carolina dos Santos Costa A, Victor da Silva A, Andrade Mendonça A, Antonio de Morais Junior M, da Silva Santos D, Guedes Torres A, Inês Sucupira Maciel M, Prado de Paiva Azevedo E. Accumulation of 5-methyltetrahydrofolate and other bioactive compounds, in the course of fermentation of green tea ( Camellia sinensis) kombucha. Heliyon 2024; 10:e32809. [PMID: 39050451 PMCID: PMC11266995 DOI: 10.1016/j.heliyon.2024.e32809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/29/2024] [Accepted: 06/10/2024] [Indexed: 07/27/2024] Open
Abstract
Kombucha is a potential probiotic tea-based drink with increasing worldwide consumption. Studies on this probiotic beverage are growing rapidly, especially about micronutrients and microbial population. As such, the present study performed the molecular identification of the microorganism and evaluated 5-methyltetrahydrofolate content by HPLC-DAD, phenolic compounds, flavonoids, carotenoids, antioxidant activity by spectrophotometric methods, and physicochemical composition of green tea kombucha on fermentation days 1, 3, 7, 14, and 21. DNA sequencing identified the Microbacterium genus as predominant. However, was unable to safely determine the species level because of the rRNA 16S gene sequence similarity between four species M. ureisolvens, M. yannicii, M. chocolatum e M. atlanticum. The concentration of 5-methyltetrahydrofolate found on the third day was 39.12 ± 1.32 μg/mL (liquid) and 45.78 ± 8.42 μg/mL (polymeric biofilm); On the twenty-first day it was 50.87 ± 3.56 μg/mL (liquid) and 54.88 ± 3.89 μg/mL (polymeric biofilm). Total phenolic compounds increased with fermentation; however, flavonoids and carotenoids were degraded by the process. The information on 5-methyltetrahydrofolate is unprecedented and highly relevant for food guidelines, since related deficiencies can lead to fetal malformation in the first three months of pregnancy. Lastly, the best fermentation time to obtain 5-methyltetrahydrofolate and others bioactive compounds is between days 7-14. Further analyses are also encouraged to understand the bioavailability of the vitamin.
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Affiliation(s)
- Samuel de Santana Khan
- Consumer Sciences Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros St. n/n, Dois Irmãos, PC: 52171-900 Recife, PE, Brazil
| | - Vanessa Bordin Vieira
- Nutrition Department, Federal University of Campina Grande, Prof. Maria Anita Furtado Coelho, Olho D’Água Bica, PC: 58175-000, PB, Brazil
| | - Ana Carolina dos Santos Costa
- Rural Technology Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros St. n/n, Dois Irmãos, PC: 52171-900 Recife, PE, Brazil
| | - Arthur Victor da Silva
- Nutrition Department, Federal University of Pernambuco, Prof. Moraes Rego Av. n/n, University Campus, PC: 50670-901 Recife, PE, Brazil
| | - Allyson Andrade Mendonça
- Department of Genetics, Federal University of Pernambuco, Prof. Moraes Rego Av. n/n, University Campus, PC: 50670-901 Recife, PE, Brazil
| | - Marcos Antonio de Morais Junior
- Department of Genetics, Federal University of Pernambuco, Prof. Moraes Rego Av. n/n, University Campus, PC: 50670-901 Recife, PE, Brazil
| | - Dayane da Silva Santos
- Department of Genetics, Federal University of Pernambuco, Prof. Moraes Rego Av. n/n, University Campus, PC: 50670-901 Recife, PE, Brazil
| | - Alexandre Guedes Torres
- Institute of Chemistry, Federal University of Rio de Janeiro, Prof. Moraes Rego Av. n/n, University Campus, PC: 50670-901 Recife, PE, Brazil
| | - Maria Inês Sucupira Maciel
- Consumer Sciences Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros St. n/n, Dois Irmãos, PC: 52171-900 Recife, PE, Brazil
| | - Emmanuela Prado de Paiva Azevedo
- Rural Technology Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros St. n/n, Dois Irmãos, PC: 52171-900 Recife, PE, Brazil
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Njieukam JA, Ciccone M, Gottardi D, Ricci A, Parpinello GP, Siroli L, Lanciotti R, Patrignani F. Microbiological, Functional, and Chemico-Physical Characterization of Artisanal Kombucha: An Interesting Reservoir of Microbial Diversity. Foods 2024; 13:1947. [PMID: 38928888 PMCID: PMC11202501 DOI: 10.3390/foods13121947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Kombucha is a trending tea fermented via a complex microflora of yeasts and acetic acid bacteria. It can be a valid low-calorie substitute for soft drinks due to its sour, naturally carbonated, and sweet taste. Despite increased interest, the microflora and functional properties of kombucha have not yet been fully understood. The aim of this work was to characterize, from a microbiological, chemico-physical, and functional point of view, three types of artisanal kombucha obtained by fermenting green tea containing sugar by means of different starter cultures. Metagenomic analysis revealed a predominance of yeasts compared to bacteria, regardless of the sample. In particular, Brettanomyces spp. was found to be the dominant yeast. Moreover, the different types of kombucha had different microbial patterns in terms of acetic acid bacteria and yeasts. Ethanol and acetic acid were the dominant volatile molecules of the kombucha volatilome; the samples differed from each other in terms of their content of alcohols, esters, and acids. All the samples showed a high antioxidant potential linked to the high content of phenols. This study confirmed the positive chemico-physical and functional properties of kombucha and indicated that the microflora responsible for the fermentation process can significantly affect the characteristics of the final product.
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Affiliation(s)
- Joel Armando Njieukam
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
| | - Marianna Ciccone
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
| | - Davide Gottardi
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
- Interdepartmental Centre for Agri-Food Industrial Research, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Arianna Ricci
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
- Interdepartmental Centre for Agri-Food Industrial Research, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Giuseppina Paola Parpinello
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
- Interdepartmental Centre for Agri-Food Industrial Research, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Lorenzo Siroli
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
- Interdepartmental Centre for Agri-Food Industrial Research, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Rosalba Lanciotti
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
- Interdepartmental Centre for Agri-Food Industrial Research, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Francesca Patrignani
- Department of Agricultural and Food Sciences, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (J.A.N.); (M.C.); (D.G.); (A.R.); (G.P.P.); (R.L.); (F.P.)
- Interdepartmental Centre for Agri-Food Industrial Research, Campus of Food Science, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
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Čakić Semenčić M, Biedrzycka A, Kiczor A, Beluhan S, Šupljika F. Spectrofluorimetric Analysis of Riboflavin Content during Kombucha Fermentation. BIOTECH 2024; 13:20. [PMID: 38921052 PMCID: PMC11201682 DOI: 10.3390/biotech13020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024] Open
Abstract
Kombucha is a traditional beverage obtained by the microbial fermentation of tea using a symbiotic culture of bacteria and yeasts. In addition to several documented functional properties, such as anti-inflammatory activity and antioxidant activity, kombucha is often credited with high levels of vitamins, including riboflavin. To our knowledge, the vitamin B2 content in traditionally prepared kombucha has been determined in only two studies, in which the concentration measured by the HPLC technique ranged from 2.2 × 10-7 to 2.1 × 10-4 mol dm-3. These unexplained differences of three orders of magnitude in the vitamin B2 content prompted us to determine its concentration during the cultivation of kombucha under very similar conditions by spectrofluorimetry. The B2 concentrations during the 10-day fermentation of black tea ranged from 7.6 × 10-8 to 3.3 × 10-7 mol dm-3.
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Affiliation(s)
- Mojca Čakić Semenčić
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia; (M.Č.S.); (S.B.)
| | - Adrianna Biedrzycka
- Faculty of Chemistry, Maria Curie Skłodowska University, 20-031 Lublin, Poland; (A.B.); (A.K.)
| | - Anna Kiczor
- Faculty of Chemistry, Maria Curie Skłodowska University, 20-031 Lublin, Poland; (A.B.); (A.K.)
| | - Sunčica Beluhan
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia; (M.Č.S.); (S.B.)
| | - Filip Šupljika
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia; (M.Č.S.); (S.B.)
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Barros VC, Botelho VA, Chisté RC. Alternative Substrates for the Development of Fermented Beverages Analogous to Kombucha: An Integrative Review. Foods 2024; 13:1768. [PMID: 38890996 PMCID: PMC11172354 DOI: 10.3390/foods13111768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 06/20/2024] Open
Abstract
Kombucha is a fermented beverage that originated in China and is spread worldwide today. The infusion of Camellia sinensis leaves is mandatory as the substrate to produce kombucha but alternative plant infusions are expected to increase the opportunities to develop new fermented food products analogous to kombucha, with high technological potential and functional properties. This review gathers information regarding promising alternative substrates to produce kombucha-analogous beverages, focusing on plants available in the Amazonia biome. The data from the literature showed a wide range of alternative substrates in increasing expansion, with 37 new substrates being highlighted, of which ~29% are available in the Amazon region. Regarding the technological production of kombucha-analogous beverages, the following were the most frequent conditions: sucrose was the most used carbon/energy source; the infusions were mostly prepared at 90-100 °C, which allowed increased contents of phenolic compounds in the product; and 14 day-fermentation at 25-28 °C was typical. Furthermore, herbs with promising bioactive compound compositions and high antioxidant and antimicrobial properties are usually preferred. This review also brings up gaps in the literature, such as the lack of consistent information about chemical composition, sensory aspects, biological properties, and market strategies for fermented beverages analogous to kombucha produced with alternative substrates. Therefore, investigations aiming to overcome these gaps may stimulate the upscale of these beverages in reaching wide access to contribute to the modern consumers' quality of life.
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Affiliation(s)
- Vinicius Costa Barros
- Graduate Program of Food Science and Technology (PPGCTA), Institute of Technology (ITEC), Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil;
| | - Vanessa Albres Botelho
- Faculty of Food Engineering, Institute of Technology (ITEC), Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil
| | - Renan Campos Chisté
- Graduate Program of Food Science and Technology (PPGCTA), Institute of Technology (ITEC), Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil;
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Le Montagner P, Bakhtiar Y, Miot-Sertier C, Guilbaud M, Albertin W, Moine V, Dols-Lafargue M, Masneuf-Pomarède I. Effect of abiotic and biotic factors on Brettanomyces bruxellensis bioadhesion properties. Food Microbiol 2024; 120:104480. [PMID: 38431326 DOI: 10.1016/j.fm.2024.104480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/20/2024] [Accepted: 01/21/2024] [Indexed: 03/05/2024]
Abstract
Biofilms are central to microbial life because of the advantage that this mode of life provides, whereas the planktonic form is considered to be transient in the environment. During the winemaking process, grape must and wines host a wide diversity of microorganisms able to grow in biofilm. This is the case of Brettanomyces bruxellensis considered the most harmful spoilage yeast, due to its negative sensory effect on wine and its ability to colonise stressful environments. In this study, the effect of different biotic and abiotic factors on the bioadhesion and biofilm formation capacities of B. bruxellensis was analyzed. Ethanol concentration and pH had negligible effect on yeast surface properties, pseudohyphal cell formation or bioadhesion, while the strain and genetic group factors strongly modulated the phenotypes studied. From a biotic point of view, the presence of two different strains of B. bruxellensis did not lead to a synergistic effect. A competition between the strains was rather observed during biofilm formation which seemed to be driven by the strain with the highest bioadhesion capacity. Finally, the presence of wine bacteria reduced the bioadhesion of B. bruxellensis. Due to biofilm formation, O. oeni cells were observed attached to B. bruxellensis as well as extracellular matrix on the surface of the cells.
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Affiliation(s)
- Paul Le Montagner
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, UMR 1366, ISVV, 33140, Villenave d'Ornon, France; Biolaffort, Floirac, France
| | - Yacine Bakhtiar
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, UMR 1366, ISVV, 33140, Villenave d'Ornon, France
| | - Cecile Miot-Sertier
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, UMR 1366, ISVV, 33140, Villenave d'Ornon, France
| | - Morgan Guilbaud
- Université Paris-Saclay, INRAE, AgroParisTech, UMR SayFood, 91120, Palaiseau, France
| | - Warren Albertin
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, UMR 1366, ISVV, 33140, Villenave d'Ornon, France; ENSMAC, Bordeaux INP, 33600, Pessac, France
| | | | - Marguerite Dols-Lafargue
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, UMR 1366, ISVV, 33140, Villenave d'Ornon, France; ENSMAC, Bordeaux INP, 33600, Pessac, France
| | - Isabelle Masneuf-Pomarède
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, UMR 1366, ISVV, 33140, Villenave d'Ornon, France; Bordeaux Sciences Agro, 33175, Gradignan, France.
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9
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Esatbeyoglu T, Sarikaya Aydin S, Gültekin Subasi B, Erskine E, Gök R, Ibrahim SA, Yilmaz B, Özogul F, Capanoglu E. Additional advances related to the health benefits associated with kombucha consumption. Crit Rev Food Sci Nutr 2024; 64:6102-6119. [PMID: 36660921 DOI: 10.1080/10408398.2022.2163373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Kombucha is a fermented, acidic beverage that dates back thousands of years as a remedy for various health problems in East Asia. Due to its health benefits, kombucha has gained popularity and attracted the attention of both consumers and researchers. The health benefits of kombucha are predominantly attributed to its bioactive compounds that have antioxidant, antimicrobial, probiotic, and other positive effects owing to fermentation. Many factors such as the type of the substrate used, the symbiotic culture of the bacterial yeast composition, and fermentation conditions influence the extent of these properties. This review focuses on recent developments regarding the bioactive constituents of kombucha and its potential health benefits (antimicrobial, antioxidant, antidiabetic, hepatoprotective effects) as well as its impact on multiple sclerosis, nephrotoxicity, gastric ulceration and gut microbiota. Additionally, the composition of kombucha, alternative uses of its biofilm, and potential toxicity are also discussed. Kombucha is a healthy and safe beverage with multiple health benefits that are primarily related to the presence of bacteria, yeasts, and other bioactive constituents. Moreover, kombucha has been suggested as a potential source of probiotics and eco-friendly materials (kombucha-derived bacterial cellulose) for several industries including food and textile.
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Affiliation(s)
- Tuba Esatbeyoglu
- Department of Food Development and Food Quality, Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz University Hannover, Hannover, Germany
| | - Secil Sarikaya Aydin
- Department of Food Development and Food Quality, Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz University Hannover, Hannover, Germany
| | - Büsra Gültekin Subasi
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Istanbul, Turkey
- Hafik Kamer Ornek MYO, Cumhuriyet University, Sivas, Turkey
| | - Ezgi Erskine
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Recep Gök
- Institute of Food Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | - Salam A Ibrahim
- Food and Nutritional Sciences Program, North Carolina Agricultural and Technical State University, Greensboro, North Carolina, USA
| | - Birsen Yilmaz
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Cukurova University, Adana, Turkey
| | - Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Esra Capanoglu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Istanbul, Turkey
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10
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Le BXN, Phan Van T, Phan QK, Pham GB, Quang HP, Do AD. Coffee Husk By-Product as Novel Ingredients for Cascara Kombucha Production. J Microbiol Biotechnol 2024; 34:673-680. [PMID: 38346818 PMCID: PMC11016790 DOI: 10.4014/jmb.2310.10004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 04/17/2024]
Abstract
Kombucha, a fermented beverage, is gaining popularity due to its numerous beneficial health effects. Various substrates such as herbs, fruits, flowers, and vegetables, have been used for kombucha fermentation in order to enhance the flavor, aroma, and nutritional composition. This study aims to investigate the potential suitability of cascara as a novel ingredient for kombucha production. Our findings suggested that cascara is a suitable substrate for kombucha production. Fermentation elevated the total phenolic and flavonoid content in cascara, which enhanced the antioxidant, antibacterial, and prebiotic characteristics of the product. Furthermore, the accumulation of acetic acid-induced the pH lowering reached 2.7 after 14 days of fermentation, which achieved the microbiological safety of the product. Moreover, 14 days of fermentation resulted in a balanced amalgamation of acidity, sweetness, and fragrance according to sensory evaluation. Our findings not only highlight the potential of cascara kombucha as a novel substrate for kombucha production but also contribute to repurposing coffee by-products, promoting environmentally friendly and sustainable agricultural development.
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Affiliation(s)
- Bao Xuyen Nguyen Le
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - Thach Phan Van
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Quang Khai Phan
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Gia Bao Pham
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Hoa Pham Quang
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Anh Duy Do
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
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11
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Wang B, Rutherfurd-Markwick K, Liu N, Zhang XX, Mutukumira AN. Evaluation of the probiotic potential of yeast isolated from kombucha in New Zealand. Curr Res Food Sci 2024; 8:100711. [PMID: 38524400 PMCID: PMC10958227 DOI: 10.1016/j.crfs.2024.100711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/20/2024] [Accepted: 03/03/2024] [Indexed: 03/26/2024] Open
Abstract
The current study investigated the in vitro probiotic potential of yeast isolated from kombucha, a tea beverage fermented with a symbiotic culture of acetic acid bacteria and yeast. A total of 62 yeast strains were previously isolated from four different commercial kombucha samples sold in New Zealand. Fifteen representative isolates belonging to eight different species were evaluated for their growth under different conditions (temperature, low pH, concentrations of bile salts, and NaCl). Cell surface characteristics, functional and enzymatic activities of the selected strains were also studied in triplicate experiments. Results showed that six strains (Dekkera bruxellensis LBY1, Sachizosaccharomyces pombe LBY5, Hanseniaspora valbyensis DOY1, Brettanomyces anomalus DOY8, Pichia kudraivzevii GBY1, and Saccharomyces cerevisiae GBY2) were able to grow under low-acid conditions (at pH 2 and pH 3) and in the presence of bile salts. This suggests their potential to survive passage through the human gut. All 15 strains exhibited negative enzymatic activity reactions (haemolytic, gelatinase, phospholipase, and protease activities), and thus, they can be considered safe to consume. Notably, two of the fifteen strains (Pichia kudraivzevii GBY1 and Saccharomyces cerevisiae GBY2) exhibited desirable cell surface hydrophobicity (64.60-83.87%), auto-aggregation (>98%), co-aggregation, resistance to eight tested antibiotics (ampicillin, chloramphenicol, colistin sulphate, kanamycin, nalidixic acid, nitrofurantoin, streptomycin, and tetracycline), and high levels of antioxidant activities (>90%). Together, our data reveal the probiotic activities of two yeast strains GBY1 and GBY2 and their potential application in functional food production.
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Affiliation(s)
- Boying Wang
- School of Food and Advanced Technology, Massey University, Auckland, 0745, New Zealand
| | | | - Ninghui Liu
- School of Food and Advanced Technology, Massey University, Auckland, 0745, New Zealand
| | - Xue-Xian Zhang
- School of Natural Sciences, Massey University, Auckland, 0745, New Zealand
| | - Anthony N. Mutukumira
- School of Food and Advanced Technology, Massey University, Auckland, 0745, New Zealand
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12
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de Oliveira Costa G, Mansur Pontes CL, Parize AL, Sandjo LP. Unveiling chemical responses in the kombucha-based fermentation of black tea, banana flower, and grape juice: LC-ESIMS, GNPS, MS-DIAL, and MS-FINDER-assisted chemical characterization. Food Funct 2024; 15:2497-2523. [PMID: 38334749 DOI: 10.1039/d3fo04977a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The lack of studies evaluating the chemical responses of kombucha microorganisms when exposed to plants is notable in the literature. Therefore, this work investigates the chemical behaviour of 7-, 14- and 21 day-fermentation of kombucha derived from three extracts obtained from banana inflorescence, black tea, and grape juice. After the acquisition of UPLC-ESI-MS data, GNPS molecular networking, MS-Dial, and MS-Finder were used to chemically characterize the samples. The microbial chemical responses were enzymatic hydrolysis, oxidation, and biosynthesis. The biosynthesis was different among the kombucha samples. In fermented black tea, gallic and dihydrosinapic acids were found as hydrolysis products alongside a sugar-derived product namely 7-(α-D-glucopyranosyloxy)-2,3,4,5,6-pentahydroxyheptanoic acid. The sphingolipids, safingol and cedefingol alongside capryloyl glycine and palmitoyl proline were identified. In fermented grapes, sugar degradation and chemical transformation products were detected together with three cell membrane hopanoids characterized as hydroxybacteriohopanetetrol cyclitol ether, (Δ6 or Δ11)-hydroxybacteriohopanetetrol cyclitol ether, and methyl (Δ6 or Δ11)-hydroxybacteriohopanetetrol cyclitol. The fermented banana blossom showed the presence of methyl (Δ6 or Δ11)-hydroxybacteriohopanetetrol cyclitol together with sphingofungin B, sphinganine and other fatty acid derivatives. Parts of these samples were tested for their inhibition against α-glucosidase and their antioxidant effects. Except for the 14-day fermented extracts, other black tea extracts showed significant inhibition of α-glucosidase ranging from 42.5 to 42.8%. A 14-day fermented extract of the banana blossom infusion showed an inhibition of 29.1%, while grape samples were less active than acarbose. The 21-day fermented black tea extract showed moderate antioxidant properties on a DPPH-based model with an EC50 of 5.29 ± 0.10 μg mL-1, while the other extracts were weakly active (EC50 between 80.76 and 168.12 μg mL-1).
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Affiliation(s)
| | - Carime L Mansur Pontes
- Department of Chemistry, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, SC, Brazil.
| | - Alexandre L Parize
- Department of Chemistry, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, SC, Brazil.
| | - Louis P Sandjo
- Department of Chemistry, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, SC, Brazil.
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13
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Eicher C, Tran T, Munier E, Coulon J, Favier M, Alexandre H, Reguant C, Grandvalet C. Influence of pH on Oenococcus oeni metabolism: Can the slowdown of citrate consumption improve its acid tolerance? Food Res Int 2024; 179:114027. [PMID: 38342547 DOI: 10.1016/j.foodres.2024.114027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 02/13/2024]
Abstract
Oenococcus oeni is the lactic acid bacteria most suited to carry out malolactic fermentation in wine, converting L-malic acid into L-lactic acid and carbon dioxide, thereby deacidifying wines. Indeed, wine is a harsh environment for microbial growth, partly because of its low pH. By metabolizing citrate, O. oeni maintains its homeostasis under acid conditions. Indeed, citrate consumption activates the proton motive force, helps to maintain intracellular pH, and enhances bacterial growth when it is co-metabolized with sugars. In addition, citrate metabolism is responsible for diacetyl production, an aromatic compound which bestows a buttery character to wine. However, an inhibitory effect of citrate on O. oeni growth at low pH has been highlighted in recent years. In order to understand how citrate metabolism can be linked to the acid tolerance of this bacterium, consumption of citrate was investigated in eleven O. oeni strains. In addition, malate and sugar consumptions were also monitored, as they can be impacted by citrate metabolism. This experiment highlighted the huge diversity of metabolisms between strains depending on their origin. It also showed the capacity of O. oeni to de novo metabolize certain end-products such as L-lactate and mannitol, a phenomenon never before demonstrated. It also enabled drawing hypotheses concerning the two positive effects that the slowing down of citrate metabolism could have on biomass production and malolactic fermentation occurring under low pH conditions.
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Affiliation(s)
- Camille Eicher
- UMR PAM, Université de Bourgogne, Institut Agro, INRAE, Dijon, France.
| | - Thierry Tran
- UMR PAM, Université de Bourgogne, Institut Agro, INRAE, Dijon, France
| | - Edouard Munier
- UMR PAM, Université de Bourgogne, Institut Agro, INRAE, Dijon, France
| | | | | | - Hervé Alexandre
- UMR PAM, Université de Bourgogne, Institut Agro, INRAE, Dijon, France
| | - Cristina Reguant
- Universitat Rovira i Virgili, Grup de Biotecnologia Enològica, Departament de Bioquímica i Biotecnologia, Tarragona, Catalonia, Spain
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14
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Ohwofasa A, Dhami M, Winefield C, On SLW. Elevated abundance of Komagataeibacter results in a lower pH in kombucha production; insights from microbiomic and chemical analyses. Curr Res Food Sci 2024; 8:100694. [PMID: 38420346 PMCID: PMC10900771 DOI: 10.1016/j.crfs.2024.100694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 03/02/2024] Open
Abstract
Kombucha consumption has grown rapidly worldwide in the last decade, with production at both small- and large scales. The complex fermentation process involves both bacterial and yeast species, but little is known regarding the progression of microbial development during production. We explored the microbial diversity of multiple batches across two kombucha types, i. e commercial scale versus laboratory-made (hereafter "home") kombucha brew using metabarcoding to characterize both fungal and bacterial communities. We found the microbial community of the commercial kombucha brew to be more complex than that of the home brew. Furthermore, PERMANOVA uncovered significant compositional differences between the bacterial (F = 2.68, R2 = 0.23, p = 00.001) and fungal (F = 3.18, R2 = 0.26, p = 00.006) communities between batches. For the home brew, both alpha and beta diversity analyses revealed no significant differences between all batches and replicates. When the microbial diversity of the home and commercial kombucha types were directly compared, the former had higher proportions of Ammoniphilus and Komagataeibacter. The commercial kombucha on the other hand were high in Anoxybacillus, Methylobacterium and Sphingomonas. For the fungal communities, the most dominant fungal genera detected in both kombucha types were similar. Linear model revealed significant correlations between some microorganisms and the sugars and organic acids assayed in this study. For example, rising glucose levels correlated with an increase in the relative abundance of Komagataeibacter (F = 7.115, Adj. R2 = 0.44, p = 00.0003). We believe these results contribute towards achieving a better control of the kombucha fermentation process and may assist in targeted product diversification.
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Affiliation(s)
- Aghogho Ohwofasa
- Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln 7647, New Zealand
- Centre of Foods for Future Consumers, Lincoln University, Lincoln 7647, New Zealand
| | - Manpreet Dhami
- Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | - Christopher Winefield
- Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln 7647, New Zealand
| | - Stephen L W On
- Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln 7647, New Zealand
- Centre of Foods for Future Consumers, Lincoln University, Lincoln 7647, New Zealand
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15
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Khazi MI, Liaqat F, Liu X, Yan Y, Zhu D. Fermentation, functional analysis, and biological activities of turmeric kombucha. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:759-768. [PMID: 37658688 DOI: 10.1002/jsfa.12962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 09/03/2023]
Abstract
BACKGROUND Kombucha is a popular fermented drink with therapeutic benefits. The present study aimed to examine the fermentation of turmeric-infused kombucha and evaluate its biological activities and functional properties. RESULTS The study of pH dynamics during fermentation found that turmeric kombucha has a lower pH decrease than standard kombucha, with the lowest pH of 3.1 being observed in 0.1% turmeric kombucha and the maximum pH of 3.8 found in 1% turmeric kombucha. The research shows that the symbiotic consortia of bacteria and yeast alters during the fermentation process with turmeric. Gas chromatogrphy-mass spectrometry analysis revealed that turmeric kombucha is abundant in terpenes, ketones, alcohols, aldehydes, phenols and fatty acids, with higher levels of active ingredients than regular kombucha. The kombucha with 0.6% turmeric had the highest overall acceptance score (9.0) in sensory evaluation. The total phenolic content after fermentation was in the range 0.2-0.8 mg gallic acid equivalents mL-1 . Increasing turmeric concentrations increased the antioxidant, cytotoxic and antibacterial activity of kombucha analogs, with the highest antioxidant activity (89%) observed at 0.8% turmeric, and the maximum cytotoxicity (74%) and antibacterial activity (zones of inhibition of 17.7 and 15.9 mm against Staphylococcus aureus and Escherichia coli, respectively) observed at 1% turmeric. CONCLUSION The fermentation of kombucha infused with turmeric enhanced its biological activities, making it a healthier alternative to traditional kombucha and presenting new opportunities in the field of functional foods. Further investigations into the mechanisms underlying these effects and in vivo studies are warranted to fully comprehend the impact of turmeric kombucha consumption on human health. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Mahammed Ilyas Khazi
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Fakhra Liaqat
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Xingrong Liu
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Yilin Yan
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Daochen Zhu
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
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16
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Meng Y, Wang X, Li Y, Chen J, Chen X. Microbial interactions and dynamic changes of volatile flavor compounds during the fermentation of traditional kombucha. Food Chem 2024; 430:137060. [PMID: 37544149 DOI: 10.1016/j.foodchem.2023.137060] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 07/12/2023] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
This study aims to explore the core microbiota of kombucha and to discover potential correlations between microbiota and volatile flavor compounds. The total acidity and microbial colony numbers changed dramatically in different fermentation periods of kombucha. Microbial analysis based on high throughput sequencing technology showed that the bacteria of Komagataeibacter, Pseudomonas, Burkholderia, Ralstonia, Halomonas, Sphingomonas and fungi of Dekkera, Saccharomyces cerevisiae, Botryotrichum, Monascus, Pichia were the dominant genera. In addition, the correlation coefficients between the bacteria and fungi were different. The volatile flavor compounds of alcohols, acids, esters, aldehydes, ketones, phenolics, and terpenes were identified using headspace solid-phase microextraction combined with gas chromatography coupled with mass spectrometry. Typically, the concentrations of ethanol, acetic acid, and ethyl acetate was 71.59-248.23 μg/L, 97.73-849.00 μg/L, and 44.52-181.59 μg/L, respectively, during fermentation. This study is helpful to understand the dynamic changes of microbial communities and volatile flavor compounds during the fermentation of kombucha.
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Affiliation(s)
- Yuecheng Meng
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, People's Republic of China
| | - Xiaojun Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, People's Republic of China
| | - Yanhua Li
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, People's Republic of China.
| | - Jie Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, People's Republic of China
| | - Xuliang Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, People's Republic of China
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17
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Hooi SL, Dwiyanto J, Toh KY, Tan G, Chong CW, Lee JWJ, Lim J. The microbial composition and functional roles of different kombucha products in Singapore. CYTA - JOURNAL OF FOOD 2023. [DOI: 10.1080/19476337.2023.2190794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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18
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Van TP, Phan QK, Quang HP, Pham GB, Thi NHN, Thi HTT, Do AD. Multi-Strain Probiotics Enhance the Bioactivity of Cascara Kombucha during Microbial Composition-Controlled Fermentation. Prev Nutr Food Sci 2023; 28:502-513. [PMID: 38188087 PMCID: PMC10764222 DOI: 10.3746/pnf.2023.28.4.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 01/09/2024] Open
Abstract
Kombucha is a widely consumed fermented tea beverage with diverse health benefits. In a previous study, we demonstrated that the use of cascara as a substrate results in a special kombucha beverage with high bioactivity. Traditional kombucha fermentation using a symbiotic culture of bacteria and yeast (SCOBY) can lead to inconsistent product quality because of the lack of control over microbial composition. We successfully isolated and identified yeast and bacteria, including Saccharomyces cerevisiae, Komagataeibacter rhaeticus, and Lactobacillus brevis that are appropriate starter cultures for cascara kombucha fermentation. We also demonstrated that a supplementation with lactic acid bacteria (LAB) and a mixture of S. cerevisiae and K. rhaeticus resulted in higher total polyphenol and flavonoid content of cascara kombucha compared with the traditionally fermented product using SCOBY as the inoculum. The free radical scavenging activity, inhibitory effects on α-amylase, tyrosinase activity, and antibacterial properties of cascara kombucha were also enhanced as a result of LAB supplement. These findings provide valuable insights into the controlled microbiological composition required for the fermentation of cascara kombucha, thereby ensuring consistent quality and enhanced bioactivity of the product. Further, the use of cascara as a substrate for kombucha production not only offers various health benefits and biological effects, but also repurposes by-products from the coffee industry, which contributes to sustainable development and is eco-friendly.
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Affiliation(s)
- Thach Phan Van
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Quang Khai Phan
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Hoa Pham Quang
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Gia Bao Pham
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Ngoc Han Ngo Thi
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Hong Tham Truong Thi
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Anh Duy Do
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
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19
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Jakubczyk K, Łopusiewicz Ł, Kika J, Janda-Milczarek K, Skonieczna-Żydecka K. Fermented Tea as a Food with Functional Value-Its Microbiological Profile, Antioxidant Potential and Phytochemical Composition. Foods 2023; 13:50. [PMID: 38201078 PMCID: PMC10778390 DOI: 10.3390/foods13010050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Kombucha is a fermented tea drink produced by a symbiotic culture of bacteria and yeast, known as SCOBY. Its base has traditionally been black tea, which has been recognized for its health-promoting properties, particularly its antioxidant activity based on its high content of pol-yphenolic compounds. A number of previous studies have demonstrated the equally favourable biochemical and phytochemical composition of green tea. The aim of this study was to analyse and compare the basic biochemical composition, microbiological composition and antioxidant properties of black and green tea-based Kombucha. The green tea-based Kombucha showed a quantitatively more abundant microbial composition (Lactic Acid Bacteria, Acetobacter sp., Yeast), a higher reducing potential (FRAP-4326.58 Fe(II)µM/L) and a higher content of total polyphenols (23.84 mg GAE/100 mL, reducing sugars (3212.00 mg/100 mL) as well as free amino acids (849.00 mg GLY/mL). Kombucha made from black tea, on the other hand, showed a higher anti-oxidant potential (1.17 Trolox (mM) TEAC), neutralising the DPPH radical at 94.33% and ABTS at 97.74%. It also had a higher level of acetic acid (0.08 g/100 mL). Green tea kombucha had a higher scavenging capacity of 90.6% for superoxide radical (O2-) and 69.28% for hydroxyl radical (·OH) than black tea kombucha. In the present study, both kombucha drinks tested were shown to be source of potent antioxidants. In addition, green tea, as a kombucha base, has proven to be as beneficial a raw material that will provide full nutritional and health-promoting values as traditional kombucha.
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Affiliation(s)
- Karolina Jakubczyk
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 24 Broniewskiego Street, 71-460 Szczecin, Poland; (J.K.); (K.J.-M.)
| | - Łukasz Łopusiewicz
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, 35 K. Janickiego, 71-270 Szczecin, Poland;
| | - Joanna Kika
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 24 Broniewskiego Street, 71-460 Szczecin, Poland; (J.K.); (K.J.-M.)
| | - Katarzyna Janda-Milczarek
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 24 Broniewskiego Street, 71-460 Szczecin, Poland; (J.K.); (K.J.-M.)
| | - Karolina Skonieczna-Żydecka
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, 24 Broniewskiego Street, 71-460 Szczecin, Poland;
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20
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Verran J, Wood J, Redfern J, Moravej H, Radclyffe-Thomas N. Hands On Biofilm! A multidisciplinary public engagement event using kombucha tea pellicle as an accessible example of biofilm. Biofilm 2023; 6:100169. [PMID: 38161327 PMCID: PMC10755530 DOI: 10.1016/j.bioflm.2023.100169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 01/03/2024] Open
Abstract
Public engagement with science has become increasingly important for the scientific community. There are many documented public engagement events that focus on aspects of microbiology, but relatively few utilise biofilms as a topic, despite their importance. Kombucha tea pellicles are easy to grow biofilms, facilitating their use within the public domain as examples of these complex communities. The aim of this work was to deliver a public engagement event that introduced visitors to general concepts about biofilm, and applications around sustainability, using kombucha. The event encouraged visitors to: build a biofilm using model clay; inoculate kombucha tea cultures using different incubation conditions, as part of a citizen science experiment to assess impact on pellicle biofilm yield; create garments and drapes on mini-mannequins using dried kombucha pellicle fabric, and demonstrate the range and importance of fermented foods (including kombucha tea), and 'good bacteria'. Quantitative and qualitative indicators of engagement were built into the activities. More than 1200 visitors, mainly in family groups, visited the event over a 4-h period. Knowledge of biofilms was low at the beginning of the event. Participation in all activities was high. Indicators of quantitative engagement were impressive, but it was difficult to obtain qualitative evidence other than observations from the delivery team (nineteen members) because of the intensity of the event and volume of visitors. The event was clearly successful in terms of fulfilment of aims, audience engagement and enthusiasm: the embedded evaluations helped to evidence the impact and reach of the event, enabling confidence in dissemination of good practice in the enhancement of public understanding of the importance of biofilm in general, and kombucha in particular.
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Affiliation(s)
- Joanna Verran
- Department of Life Science, Manchester Metropolitan University, Manchester, M1 5GD, UK
| | - Jane Wood
- Textile and Fashion Technology, University of Manchester, Manchester, UK
| | - James Redfern
- Department of Natural Sciences, Manchester Metropolitan University, Manchester, M1 5GD, UK
| | - Haleh Moravej
- Department of Health Professions, Manchester Metropolitan University, Manchester, UK
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Isakov VA, Pilipenko VI, Vlasova AV, Kochetkova AA. Evaluation of the Efficacy of Kombucha-Based Drink Enriched with Inulin and Vitamins for the Management of Constipation-Predominant Irritable Bowel Syndrome in Females: A Randomized Pilot Study. Curr Dev Nutr 2023; 7:102037. [PMID: 38149073 PMCID: PMC10750126 DOI: 10.1016/j.cdnut.2023.102037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/05/2023] [Accepted: 11/09/2023] [Indexed: 12/28/2023] Open
Abstract
Background Constipation-predominant irritable bowel syndrome (IBS-C) mainly affects females, and dietary interventions for symptom relief often yield poor results because of low patient adherence. The development of functional food products enriched with dietary fibers may increase patients' adherence to a healthy diet and relieve IBS-С symptoms. Objective This proof-of-concept, open-label, randomized controlled pilot study is aimed to evaluate the efficacy of kombucha enriched with inulin and vitamins in females with IBS-C. Methods Forty females with IBS-C were randomly assigned to receive either 220 mL of kombucha enriched with inulin (2.53 g/220 mL) and vitamins (B1 - 0.59 mg, B2 - 0.55 mg, B3 - 5.9 mg, B6 - 0.7 mg, and folic acid - 81.4 μg/220 mL) or water for 10 d. Stool frequency, Bristol stool scale score (BSSS), and abdominal symptoms were evaluated using a 5-point Likert scale on days 5, 9 and 14 of the study. The palatability of the drink was assessed using a visual analog scale. Results After 10 d, the kombucha group showed a significant increase in stool frequency (0.60 ± 0.31-0.85 ± 0.19 times/d; P = 0.004) compared with the control (0.63 ± 0.33 compared with 0.72 ± 0.28; P = 0.6). The mean values of the BSSS increased in the kombucha group (3.0 ± 1.2-4.4 ± 1.0; P = 0.001), whereas they remained unchanged in the control (2.9 ± 1.2 compared with 3.4 ± 1.2; P = 0.6). The kombucha group also experienced a significant decrease in the feeling of incomplete bowel emptying (1.88 ± 0.78 compared with 1.41 ± 0.56 points; P = 0.015), which was not observed in the control group. Conclusions Short-term consumption of kombucha enriched with inulin and vitamins was associated with an increase in stool frequency, an improvement in the BSSS, and a reduction in the feeling of incomplete bowel emptying in females with IBS-C. Further large-scale clinical trials investigating the efficacy of kombucha enriched with inulin and vitamins in patients with IBS-C are warranted to prove the observed effects. Trial registration number This trial was registered at clinicaltrials.gov as NCT05164861 (==https://clinicaltrials.gov/study/NCT05164861?term=NCT05164861&rank=1; registered on 18 December, 2021).
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Affiliation(s)
- Vasily A Isakov
- Department of Gastroenterology & Hepatology, Federal Research Centre of Nutrition, Biotechnology and Food Safety, Moscow, Russia
| | - Vladimir I Pilipenko
- Department of Gastroenterology & Hepatology, Federal Research Centre of Nutrition, Biotechnology and Food Safety, Moscow, Russia
| | - Alina V Vlasova
- Department of Gastroenterology & Hepatology, Federal Research Centre of Nutrition, Biotechnology and Food Safety, Moscow, Russia
| | - Alla A Kochetkova
- Laboratory of Food Biotechnology and Foods for Special Dietary Uses, Federal Research Centre of Nutrition, Biotechnology and Food Safety, Moscow, Russia
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22
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Su J, Tan Q, Tang Q, Tong Z, Yang M. Research progress on alternative kombucha substrate transformation and the resulting active components. Front Microbiol 2023; 14:1254014. [PMID: 37779696 PMCID: PMC10537971 DOI: 10.3389/fmicb.2023.1254014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 08/31/2023] [Indexed: 10/03/2023] Open
Abstract
Kombucha is a customary tea-based beverage that is produced through the process of fermenting a mixture of tea and sugar water with symbiotic culture of bacteria and yeast (SCOBY). Traditional kombucha has various beneficial effects and can improve immunity. The significant market share of Kombucha can be attributed to the growing consumer inclination towards healthy foods within the functional beverage industry. The research focus has recently expanded from the probiotics of traditional black tea kombucha to encompass other teas, Chinese herbs, plant materials, and alternative substrates. There is a lack of comprehensive literature reviews focusing on substance transformation, functional, active substances, and efficacy mechanisms of alternative kombucha substrates. This article aimed to bridge this gap by providing an in-depth review of the biological transformation pathways of kombucha metabolites and alternative substrates. The review offers valuable insights into kombucha research, including substance metabolism and transformation, efficacy, pharmacological mechanism, and the purification of active components, offering direction and focus for further studies in this field.
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Affiliation(s)
| | | | | | | | - Minhe Yang
- Fujian Key Laboratory of Innate Immune Biology, College of Life Science, Biomedical Research Center of South China, Fujian Normal University, Fuzhou, China
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Tritean N, Dima ȘO, Trică B, Stoica R, Ghiurea M, Moraru I, Cimpean A, Oancea F, Constantinescu-Aruxandei D. Selenium-Fortified Kombucha-Pollen Beverage by In Situ Biosynthesized Selenium Nanoparticles with High Biocompatibility and Antioxidant Activity. Antioxidants (Basel) 2023; 12:1711. [PMID: 37760014 PMCID: PMC10525527 DOI: 10.3390/antiox12091711] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/23/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
Biogenic selenium nanoparticles (SeNPs) have been shown to exhibit increased bioavailability. Fermentation of pollen by a symbiotic culture of bacteria and yeasts (SCOBY/Kombucha) leads to the release of pollen content and enhances the prebiotic and probiotic effects of Kombucha. The aim of this study was to fortify Kombucha beverage with SeNPs formed in situ by Kombucha fermentation with pollen. Response Surface Methodology (RSM) was used to optimize the biosynthesis of SeNPs and the pollen-fermented Kombucha beverage. SeNPs were characterized by Transmission electron microscopy energy-dispersive X-ray spectroscopy (TEM-EDX), Fourier-transform infrared spectroscopy (FTIR), Dynamic light scattering (DLS), and Zeta potential. The pollen-fermented Kombucha beverage enriched with SeNPs was characterized by measuring the total phenolic content, antioxidant activity, soluble silicon, saccharides, lactic acid, and the total content of Se0. The polyphenols were identified by liquid chromatography-mass spectrometry (LC-MS). The pollen and the bacterial (nano)cellulose were characterized by scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), FTIR, and X-Ray diffraction (XRD). We also assessed the in vitro biocompatibility in terms of gingival fibroblast viability and proliferation, as well as the antioxidant activity of SeNPs and the pollen-fermented Kombucha beverage enriched with SeNPs. The results highlight their increased biological performance in this regard.
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Affiliation(s)
- Naomi Tritean
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
- Faculty of Biology, University of Bucharest, Splaiul Independentei No. 91-95, 050095 Bucharest, Romania;
| | - Ștefan-Ovidiu Dima
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
| | - Bogdan Trică
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
- Postdoctoral School, National University of Science and Technology Politehnica of Bucharest, Splaiul Independenței No. 313, 060042 Bucharest, Romania
| | - Rusăndica Stoica
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
| | - Marius Ghiurea
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
| | - Ionuț Moraru
- Medica Laboratories, Str. Frasinului nr. 11, 075100 Otopeni, Romania;
| | - Anisoara Cimpean
- Faculty of Biology, University of Bucharest, Splaiul Independentei No. 91-95, 050095 Bucharest, Romania;
| | - Florin Oancea
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
- Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Mărăști Blv. No. 59, Sector 1, 011464 Bucharest, Romania
| | - Diana Constantinescu-Aruxandei
- Bioresources, Polymers and Analysis Departments, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței No. 202, Sector 6, 060021 Bucharest, Romania; (N.T.); (Ș.-O.D.); (B.T.); (R.S.); (M.G.)
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Mehta A, Serventi L, Kumar L, Torrico DD. The Scoop on SCOBY (Symbiotic Culture of Bacteria and Yeast): Exploring Consumer Behaviours towards a Novel Ice Cream. Foods 2023; 12:3152. [PMID: 37685086 PMCID: PMC10486441 DOI: 10.3390/foods12173152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
With the growing demand for sustainable practises, the food industry is increasingly adopting circular economy approaches. One example is recycling the symbiotic culture of bacteria and yeast (SCOBY) used in kombucha fermentation to create value-added products. However, consumer acceptance of such novel products remains unclear. To address this, the present study examined consumer attitudes towards ice cream made with SCOBY as an ingredient and how this affected their intention to consume it. Drawing on the theory of planned behaviour (TPB) and additional constructs such as emotions and food neophobia, an online survey was conducted with New Zealand consumers (N = 170). Results showed that the TPB constructs significantly predicted the intention to consume SCOBY ice cream. Moreover, by adding emotions to the constructs, the model's explanatory power was enhanced. Attitudes, subjective norms, and emotions were the main predictors of intention, which in turn was found to be the main predictor of behaviour. Participants' beliefs about the safety and taste of SCOBY ice cream were significantly correlated with their intention and behaviour, as were the opinions of nutritionists/dietitians, friends, and family. The model accounted for 21.7% of the variance in behaviour and 57.4% of the variance in intention. These findings can be used to plan marketing strategies related to waste-to-value-added products such as SCOBY ice cream.
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Affiliation(s)
| | | | | | - Damir Dennis Torrico
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand; (A.M.); (L.S.); (L.K.)
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25
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Wu SX, Xiong RG, Cheng J, Xu XY, Tang GY, Huang SY, Zhou DD, Saimaiti A, Gan RY, Li HB. Preparation, Antioxidant Activities and Bioactive Components of Kombucha Beverages from Golden-Flower Tea ( Camellia petelotii) and Honeysuckle-Flower Tea ( Lonicera japonica). Foods 2023; 12:3010. [PMID: 37628009 PMCID: PMC10453153 DOI: 10.3390/foods12163010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/04/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Kombucha is a fermented tea known for its health benefits. In this study, golden-flower tea (Camellia petelotii) and honeysuckle-flower tea (Lonicera japonica) were first used as raw materials to prepare kombucha beverages. The antioxidant activities, total phenolic contents, concentrations of bioactive components, and sensory scores of two kombucha beverages were assessed. Additionally, effects of fermentation with or without tea residues on kombucha beverages were compared. The results found that two kombucha beverages possessed strong antioxidant activities and high scores of sensory analysis. In addition, fermentation with golden-flower tea residues could remarkably enhance the antioxidant activity (maximum 2.83 times) and total phenolic contents (3.48 times), while fermentation with honeysuckle tea residues had a minor effect. Furthermore, concentrations of several bioactive compounds could be increased by fermentation with golden-flower tea residues, but fermentation with honeysuckle-flower tea residues had limited effects. Moreover, the fermentation with or without tea residues showed no significant difference on sensory scores of golden-flower tea kombucha and honeysuckle-flower tea kombucha, and golden-flower tea kombucha had higher sensory scores than honeysuckle-flower tea kombucha. Therefore, it might be a better strategy to produce golden-flower tea kombucha by fermentation with tea residues, while honeysuckle-flower tea kombucha could be prepared without tea residues.
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Affiliation(s)
- Si-Xia Wu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
| | - Ruo-Gu Xiong
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
| | - Jin Cheng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
| | - Xiao-Yu Xu
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (X.-Y.X.); (G.-Y.T.)
| | - Guo-Yi Tang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (X.-Y.X.); (G.-Y.T.)
| | - Si-Yu Huang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
| | - Dan-Dan Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
| | - Adila Saimaiti
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
| | - Ren-You Gan
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Singapore 138669, Singapore
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (S.-X.W.); (R.-G.X.); (J.C.); (S.-Y.H.); (D.-D.Z.); (A.S.)
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26
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Xiong RG, Wu SX, Cheng J, Saimaiti A, Liu Q, Shang A, Zhou DD, Huang SY, Gan RY, Li HB. Antioxidant Activities, Phenolic Compounds, and Sensory Acceptability of Kombucha-Fermented Beverages from Bamboo Leaf and Mulberry Leaf. Antioxidants (Basel) 2023; 12:1573. [PMID: 37627568 PMCID: PMC10451197 DOI: 10.3390/antiox12081573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
Kombucha is traditional drink made from the fermentation of a black tea infusion, and is believed to offer a variety of health benefits. Recently, exploring kombucha made from alternative substrates has become a research hotspot. In this paper, two novel kombucha beverages were produced with bamboo leaf or mulberry leaf for the first time. Moreover, the effects of fermentation with leaf residues (infusion plus residues) or without leaf residues (only infusion) on the antioxidant properties of kombucha were compared. The ferric-reducing antioxidant power assay, Trolox equivalent antioxidant capacity assay, Folin-Ciocalteu method, and high-performance liquid chromatography were utilized to measure the antioxidant capacities, total phenolic contents, as well as some compound concentrations of the kombucha. The results showed that two types of kombucha had high antioxidant capacities. Moreover, kombucha fermented with bamboo leaf residues (infusion plus residues) significantly enhanced its antioxidant capabilities (maximum increase 83.6%), total phenolic content (maximum increase 99.2%), concentrations of some compounds (luteolin-6-C-glucoside and isovitexin), and sensory acceptability, compared to that without residues (only infusion). In addition, fermentation with leaf residues had no significant effect on mulberry leaf kombucha. Overall, the bamboo leaf was more suitable for making kombucha with residues, while the mulberry leaf kombucha was suitable for fermentation with or without residues.
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Affiliation(s)
- Ruo-Gu Xiong
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
| | - Si-Xia Wu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
| | - Jin Cheng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
| | - Adila Saimaiti
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
| | - Qing Liu
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (Q.L.); (A.S.)
| | - Ao Shang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (Q.L.); (A.S.)
| | - Dan-Dan Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
| | - Si-Yu Huang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
| | - Ren-You Gan
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Singapore 138669, Singapore
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (R.-G.X.); (S.-X.W.); (J.C.); (A.S.); (D.-D.Z.); (S.-Y.H.)
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Mendelson C, Sparkes S, Merenstein DJ, Christensen C, Sharma V, Desale S, Auchtung JM, Kok CR, Hallen-Adams HE, Hutkins R. Kombucha tea as an anti-hyperglycemic agent in humans with diabetes - a randomized controlled pilot investigation. Front Nutr 2023; 10:1190248. [PMID: 37588049 PMCID: PMC10426908 DOI: 10.3389/fnut.2023.1190248] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/07/2023] [Indexed: 08/18/2023] Open
Abstract
Introduction Kombucha is a popular fermented tea that has attracted considerable attention due, in part, to its suggested health benefits. Previous results from animal models led us to hypothesize kombucha may reduce blood sugar levels in humans with diabetes. The objective of this pilot clinical study was to evaluate kombucha for its anti-hyperglycemic activities in adults with diabetes mellitus type II. Methods The study was organized as a prospective randomized double-blinded crossover study at a single-center urban hospital system. Participants (n = 12) were instructed to consume either a kombucha product or a placebo control (each 240 mL) for 4 weeks. After an 8-week washout period, participants consumed the alternate product. Fasting blood glucose levels were self-determined at baseline and at 1 and 4 weeks during each treatment period. Secondary health outcomes, including overall health, insulin requirement, gut health, skin health, mental health, and vulvovaginal health were measured by questionnaire at the same time points. The kombucha microbiota was assessed by selective culturing and 16S rRNA gene (bacteria) and ITS (fungi) sequencing. Fermentation end products were assessed by HPLC. Statistical significance of changes in fasting blood glucose was determined using paired, two-tailed student's t-tests. Results Kombucha lowered average fasting blood glucose levels at 4 weeks compared to baseline (164 vs. 116 mg/dL, p = 0.035), whereas the placebo did not (162 vs. 141 mg/dL, p = 0.078). The kombucha microbiota, as assessed by cultural enumeration, was mainly comprised of lactic acid bacteria, acetic acid bacteria, and yeast, with each group present at about 106 colony forming units (CFU)/mL. Likewise, 16S rRNA gene sequencing confirmed that lactic acid and acetic acid bacteria were the most abundant bacteria, and ITS sequencing showed Dekkera was the most abundant yeast. The primary fermentation end products were lactic and acetic acids, both less than 1%. Ethanol was present at 1.5%. Discussion Although this pilot study was limited by a small sample size, kombucha was associated with reduced blood glucose levels in humans with diabetes. Larger follow-up studies are warranted. Clinical trial registration ClinicalTrials.gov, identifier NCT04107207.
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Affiliation(s)
- Chagai Mendelson
- Department of Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Sabrina Sparkes
- Department of Human Science, Georgetown University School of Health, Washington, DC, United States
| | - Daniel J. Merenstein
- Department of Human Science, Georgetown University School of Health, Washington, DC, United States
- Department of Family Medicine, Georgetown University Medical Center, Washington, DC, United States
| | - Chloe Christensen
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, United States
| | - Varun Sharma
- Division of General Internal Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | | | - Jennifer M. Auchtung
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, United States
| | - Car Reen Kok
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, United States
| | - Heather E. Hallen-Adams
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, United States
| | - Robert Hutkins
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, United States
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Yao L, Zhang J, Lu J, Chen D, Song S, Wang H, Sun M, Feng T. Revealing the influence of microbiota on the flavor of kombucha during natural fermentation process by metagenomic and GC-MS analysis. Food Res Int 2023; 169:112909. [PMID: 37254344 DOI: 10.1016/j.foodres.2023.112909] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 06/01/2023]
Abstract
In this work, raw Pu-erh tea (RAPT) was employed for kombucha preparation, and the microbial composition and volatile flavor compounds of the fermented tea had been investigated during natural fermentation process. The head space-solid phase microextraction-gas chromatograph mass spectrometry (HS-SPME-GC-MS) was performed for volatiles analysis of unfermented tea and kombucha fermented for 3 days (KF-3) and 6 days (KF-6). Meanwhile, the microbial community of KF-3 and KF-6 were evaluated by metagenomic analysis. A total of 72 volatile compounds were identified and obvious changes in volatiles were observed during the fermentation process based on the results of GC-MS and principal component analysis (PCA). Metagenomic sequencing analysis demonstrated that bacterium Komagataeibacter saccharivorans and unclassified-g-komagataeibacter and yeast Saccharomyces cerevisiae and Brettanomyces bruxellensis were the most common microbes contained in the sampled kombucha communities. Furthermore, the relevance among microbial community and volatile compounds was evaluated through correlation heatmap analysis. The results suggested that the main flavor volatiles of kombucha (i.e., acids, esters and terpenes) were closely related to species of genus Komagataeibacter, Gluconacetobacter, Saccharomyces, Brettanomyces, Acetobacter, Novacetimonas and Pichia microorganisms. The obtained results would help to better understand microbial communities and volatile compounds of kombucha, which could provide useful information for enhancing the flavor quality of kombucha products.
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Affiliation(s)
- Lingyun Yao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jing Zhang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jun Lu
- Auckland Bioengineering Institute, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Da Chen
- Department of Animal, Veterinary and Food Sciences, University of Idaho, 875 Perimeter Drive, Moscow, ID 83844, USA
| | - Shiqing Song
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Huatian Wang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Min Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Tao Feng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China.
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Wang B, Rutherfurd-Markwick K, Naren N, Zhang XX, Mutukumira AN. Microbiological and Physico-Chemical Characteristics of Black Tea Kombucha Fermented with a New Zealand Starter Culture. Foods 2023; 12:2314. [PMID: 37372525 DOI: 10.3390/foods12122314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Kombucha is a popular sparkling sugared tea, fermented by a symbiotic culture of acetic acid bacteria (AAB) and yeast. The demand for kombucha continues to increase worldwide, mainly due to its perceived health benefits and appealing sensory properties. This study isolated and characterised the dominant AAB and yeast from a starter culture and kombucha broth after 0, 1, 3, 5, 7, 9, 11, and 14 days of fermentation at ambient temperature (22 °C). Yeast and AAB were isolated from the Kombucha samples using glucose yeast extract mannitol ethanol acetic acid (GYMEA) and yeast extract glucose chloramphenicol (YGC) media, respectively. The phenotypic and taxonomic identification of AAB and yeast were determined by morphological and biochemical characterisation, followed by a sequence analysis of the ribosomal RNA gene (16S rRNA for AAB and ITS for yeast). The changes in the microbial composition were associated with variations in the physico-chemical characteristics of kombucha tea, such as pH, titratable acidity, and total soluble solids (TSS). During fermentation, the acidity increased and the TSS decreased. The yield, moisture content, and water activity of the cellulosic pellicles which had developed at the end of fermentation were attributed to the presence of AAB. The dominant AAB species in the cellulosic pellicles and kombucha broth were identified as Komagataeibacter rhaeticus. The yeast isolates belonged to Debaryomyces prosopidis and Zygosaccharomyces lentus.
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Affiliation(s)
- Boying Wang
- School of Food and Advanced Technology, Massey University, Auckland 0745, New Zealand
| | | | - Naran Naren
- School of Natural Sciences, Massey University, Auckland 0745, New Zealand
| | - Xue-Xian Zhang
- School of Natural Sciences, Massey University, Auckland 0745, New Zealand
| | - Anthony N Mutukumira
- School of Food and Advanced Technology, Massey University, Auckland 0745, New Zealand
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Frolova Y, Vorobyeva V, Vorobyeva I, Sarkisyan V, Malinkin A, Isakov V, Kochetkova A. Development of Fermented Kombucha Tea Beverage Enriched with Inulin and B Vitamins. FERMENTATION-BASEL 2023; 9:552. [DOI: 10.3390/fermentation9060552] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Kombucha is a sweet and sour beverage made by fermenting a liquid base with a symbiotic culture of bacteria and yeast. Different tea substrates, carbohydrate sources, and additional ingredients are used to create beverages with different physical and chemical characteristics. The purpose of this work was to create a recipe and technology to study the properties of the beverage based on kombucha with a given chemical composition. The content of added functional ingredients (vitamins and inulin) in quantities comparable with reference daily intake was the specified parameter characterizing the distinctive features of the enriched beverages. For fermentation using symbiotic cultures of bacteria and yeast, a black tea infusion sweetened with sucrose was used as a substrate. The changes in the physicochemical characteristics of the fermented tea beverage base were evaluated. The dynamics of changes in pH, acidity, the content of mono- and disaccharides, ethanol, organic acids, polyphenolic compounds, and volatile organic substances were shown. The fermentation conditions were selected (pH up to 3.3 ± 0.3, at T = 25 ± 1 °C, process duration of 14 days) to obtain the beverage base. Strawberry and lime leaves were used as flavor and aroma ingredients, and vitamins with inulin were used as functional ingredients. Since the use of additional ingredients changed the finished beverage’s organoleptic profile and increased its content of organic acids, the final product’s physical–chemical properties, antioxidant activity, and organoleptic indicators were assessed. The content of B vitamins in the beverages ranges from 29 to 44% of RDI, and 100% of RDI for inulin, which allows it to be attributed to the category of enriched products. The DPPH inhibitory activity of the beverages was 82.0 ± 7%, and the ethanol content did not exceed 0.43%. The beverages contained a variety of organic acids: lactic (43.80 ± 4.82 mg/100 mL), acetic (205.00 ± 16.40 mg/100 mL), tartaric (2.00 ± 0.14 mg/100 mL), citric (65.10 ± 5.86 mg/100 mL), and malic (45.50 ± 6.37 mg/100 mL). The technology was developed using pilot equipment to produce fermented kombucha tea enriched with inulin and B vitamins.
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Affiliation(s)
- Yuliya Frolova
- Laboratory of Food Biotechnology and Foods for Special Dietary Uses, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Valentina Vorobyeva
- Laboratory of Food Biotechnology and Foods for Special Dietary Uses, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Irina Vorobyeva
- Laboratory of Food Biotechnology and Foods for Special Dietary Uses, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Varuzhan Sarkisyan
- Laboratory of Food Biotechnology and Foods for Special Dietary Uses, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Alexey Malinkin
- Laboratory of Food Chemistry, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Vasily Isakov
- Department of Gastroenterology & Hepatology, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
| | - Alla Kochetkova
- Laboratory of Food Biotechnology and Foods for Special Dietary Uses, Federal State Budgetary Scientific Institution Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia
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Chong AQ, Lau SW, Chin NL, Talib RA, Basha RK. Fermented Beverage Benefits: A Comprehensive Review and Comparison of Kombucha and Kefir Microbiome. Microorganisms 2023; 11:1344. [PMID: 37317318 DOI: 10.3390/microorganisms11051344] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 06/16/2023] Open
Abstract
Beverage fermentation is an ancient ritual that has been practised for millennia. It was slowly disappearing from households and communities due to the advancement of manufacturing technology and the marketing of soft drinks until the recent revival of the beverage fermentation culture due to an increase in the demand for health drinks amid the COVID-19 pandemic. Kombucha and kefir are two well-known fermented beverages that are renowned for their myriad of health benefits. The starter materials for making these beverages contain micro-organisms that act like microscopic factories producing beneficial nutrients that have antimicrobial and anticancer effects. The materials modulate the gut microbiota and promote positive effects on the gastrointestinal tract. Due to wide variations in the substrates and types of micro-organisms involved in the production of both kombucha and kefir, this paper compiles a compendium of the micro-organisms present and highlights their nutritional roles.
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Affiliation(s)
- Ann Qi Chong
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
| | - Siew Wen Lau
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
| | - Nyuk Ling Chin
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
| | - Rosnita A Talib
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
| | - Roseliza Kadir Basha
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
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Anantachoke N, Duangrat R, Sutthiphatkul T, Ochaikul D, Mangmool S. Kombucha Beverages Produced from Fruits, Vegetables, and Plants: A Review on Their Pharmacological Activities and Health Benefits. Foods 2023; 12:foods12091818. [PMID: 37174355 PMCID: PMC10178031 DOI: 10.3390/foods12091818] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
Kombucha is a traditional health beverage produced by fermenting sweetened tea with a symbiotic culture of bacteria and yeasts. Consumption of kombucha beverages has been growing and there is kombucha commercially available worldwide as one of the most famous low-alcohol beverages. Kombucha beverages have been claimed to have beneficial effects on human health because they contain a variety of bioactive compounds that possess various functional properties. At present, several kinds of raw material (e.g., milk, fruit, vegetables, and herbs) have been fermented with kombucha consortium and consumed as kombucha beverages. Although several studies have been written regarding the biological activities of kombucha and raw materials, there is however little information available on the characterization of their components as well as the biological activities of fermented kombucha from many raw material mixtures. Several pharmacological activities were reviewed in the scientific literature, describing their potential implications for human health. In addition, the adverse effects and toxicity of kombucha consumption were also reviewed. In this study, we focused on the main and latest studies of the pharmacological effects of kombucha beverages produced from various kinds of raw materials, including antioxidant, anti-inflammatory, immunomodulatory, antimicrobial, anticancer, antidiabetic, antihypertensive, and antihyperlipidemic effects in in vitro and in vivo studies.
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Affiliation(s)
- Natthinee Anantachoke
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Ratchanee Duangrat
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Tanyarat Sutthiphatkul
- Department of Biology, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Duangjai Ochaikul
- Department of Biology, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Supachoke Mangmool
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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Enhancing the Chemical Composition of Kombucha Fermentation by Adding Indian Gooseberry as a Substrate. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9030291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Kombucha is a fermented tea beverage obtained by the symbiosis of yeast, acetic acid bacteria and some lactic acid bacteria, and it has many health benefits. The aim of this study was to investigate the potential of adding Indian gooseberry as a substrate to enhance the chemical properties of kombucha. In this study, traditional kombucha made from green tea was compared to kombucha made from green tea blended with various forms of Indian gooseberry, including whole fruit, dried fruit and juice. The fermentation was performed for 21 days and samples were collected every 3 days to enumerate the total number of yeast and bacteria. Physical and chemical properties, including total soluble solids, alcohol content, pH, acetic acid content, total phenolic and flavonoid content, antioxidant activity and organic acids, were analyzed. The results revealed that the dried Indian gooseberry kombucha (DIGK) demonstrated significantly high total phenolic content and total flavonoid content. In addition, DIGK had the highest D-Saccharic acid-1,4 lactone (DSL) on the 9th day of fermentation. This discovery suggests that dried Indian gooseberry can be used as an alternative substrate for kombucha fermentation to create a new type of kombucha beverage with enhanced chemical properties.
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Tea Plant ( Camellia sinensis): A Current Update on Use in Diabetes, Obesity, and Cardiovascular Disease. Nutrients 2022; 15:nu15010037. [PMID: 36615695 PMCID: PMC9823498 DOI: 10.3390/nu15010037] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
The tea plant (C. sinensis) has traditionally been consumed worldwide as "tea" for its many health benefits, with the potential for the prevention and therapy of various conditions. Regardless of its long history, the use of tea plants in modern times seems not to have changed much, as the beverage remains the most popular form. This review aimed to compile scientific information about the role and action of tea plants, as well as their status concerning clinical applications, based on the currently available evidence, with a focus on metabolic syndrome, mainly covering obesity, diabetes, and cardiovascular disease. It has been recognized that these diseases pose a significant threat to public health, and the development of effective treatment and prevention strategies is necessary but still challenging. In this article, the potential benefits of tea plants and their derived bioactive components (such as epigallocatechin-3-gallate) as anti-obesity, anti-diabetic, and anti-cardiovascular agents are clearly shown and emphasized, along with their mechanisms of action. However, according to the status of the clinical translation of tea plants, particularly in drug development, more substantial efforts in well-designed, randomized, controlled trials are required to expand their applications in treating the three major metabolic disorders and avoiding the toxicity caused by overconsumption.
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Fermented Black Tea and Its Relationship with Gut Microbiota and Obesity: A Mini Review. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8110603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Fermentation is one of the world’s oldest techniques for food preservation, nutrient enhancement, and alcohol manufacturing. During fermentation, carbohydrates such as glucose and starch are converted into other molecules, such as alcohol and acid, anaerobically through enzymatic action while generating energy for the microorganism or cells involved. Black tea is among the most popular fermented beverages; it is made from the dried tea leaves of the evergreen shrub plant known as Camellia sinensis. The adequate consumption of black tea is beneficial to health as it contains high levels of flavanols, also known as catechins, which act as effective antioxidants and are responsible for protecting the body against the development of illnesses, such as inflammation, diabetes, hypertension, cancer, and obesity. The prevalence of obesity is a severe public health concern associated with the incidence of various serious diseases and is now increasing, including in Malaysia. Advances in ‘omic’ research have allowed researchers to identify the pivotal role of the gut microbiota in the development of obesity. This review explores fermented black tea and its correlation with the regulation of the gut microbiota and obesity.
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Liu Y, Zheng Y, Yang T, Mac Regenstein J, Zhou P. Functional properties and sensory characteristics of kombucha analogs prepared with alternative materials. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Flyurik E, Ermakova O. Medusomyces gisevii: cultivation, composition, and application. FOODS AND RAW MATERIALS 2022. [DOI: 10.21603/2308-4057-2023-1-563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Tea fungus (Medusomyces gisevii) is a natural symbiotic consortium of yeast-like fungi and bacteria. Scientific literature provides a lot of information about the consortium, but it is largely fragmentary. We aimed to review and systematize the information on the research topic.
We studied scientific publications, conference proceedings, intellectual property, regulatory documents, and Internet resources on the M. gisevii consortium using Scopus, Web of Science, e.LIBRARY.RU, and Google Academy. The methods applied included registration, grouping, classification, comparative analysis, and generalization.
We described the origin and composition of tea fungus, specifying the microorganisms that make up its symbiotic community depending on the place of origin. Then, we reviewed the stages of fermentation and cultivation conditions in various nutrient media and presented the composition of the culture liquid. Finally, we analyzed the antimicrobial effect of M. gisevii on a number of microorganisms and delineated some practical uses of the fungus.
The data presented in this article can be used to analyze or develop new methods for the cultivation and application of M. gisevii. We specified some possibilities for using not only the culture liquid but also the fruit body of the fungus in various industries.
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Reconstruction of Simplified Microbial Consortia to Modulate Sensory Quality of Kombucha Tea. Foods 2022; 11:foods11193045. [PMID: 36230121 PMCID: PMC9563716 DOI: 10.3390/foods11193045] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022] Open
Abstract
Kombucha is a fermented tea with a long history of production and consumption. It has been gaining popularity thanks to its refreshing taste and assumed beneficial properties. The microbial community responsible for tea fermentation—acetic acid bacteria (AAB), yeasts, and lactic acid bacteria (LAB)—is mainly found embedded in an extracellular cellulosic matrix located at the liquid–air interphase. To optimize the production process and investigate the contribution of individual strains, a collection of 26 unique strains was established from an artisanal-scale kombucha production; it included 13 AAB, 12 yeasts, and one LAB. Among these, distinctive strains, namely Novacetimonas hansenii T7SS-4G1, Brettanomyces bruxellensis T7SB-5W6, and Zygosaccharomyces parabailii T7SS-4W1, were used in mono- and co-culture fermentations. The monocultures highlighted important species-specific differences in the metabolism of sugars and organic acids, while binary co-cultures demonstrated the roles played by bacteria and yeasts in the production of cellulose and typical volatile acidity. Aroma complexity and sensory perception were comparable between reconstructed (with the three strains) and native microbial consortia. This study provided a broad picture of the strains’ metabolic signatures, facilitating the standardization of kombucha production in order to obtain a product with desired characteristics by modulating strains presence or abundance.
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Abstract
Kombucha is a fermented sweetened tea with a mixed fermenting culture of yeast and acetic acid bacteria. While the history of kombucha is not completely clear, it is now available around the world and has shown an increase in availability and demand in the United States market. The proponents of kombucha consumption tout the varied health benefits it can provide. The final kombucha flavor and composition is a function of both the initial tea used and the fermentation process. While the ascribed benefits are varied and numerous, the number of direct studies has been limited. This review focuses on the current state of understanding of the chemical composition and the potential health effects both positive and negative reported in the literature.
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Prados-Bo A, Rabassa M, Bosch M, Casino G. Online information in Spanish on probiotics, yoghurt, kefir, kombucha, fibre and prebiotics: an analysis of the quality of information and the certainty of the evidence supporting health claims. BMJ Open 2022; 12:e063316. [PMID: 35922106 PMCID: PMC9352994 DOI: 10.1136/bmjopen-2022-063316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE To examine the certainty of the evidence supporting health claims about probiotics, yoghurt, kefir, kombucha, fibre and prebiotics, and to assess the quality of online information in Spanish. DESIGN Content analysis. METHODS We compiled a data set of 114 web pages by searching six popular search phrases in Spanish relating to probiotics, yoghurt, kefir, kombucha, fibre and prebiotics on Google.es and coded them for typology and health claims. We examined the certainty of the evidence for health claims from systematic reviews. Information quality was assessed according to 10 criteria, where a web page: mentions scientific publications and reports their conclusions; quantifies relative and absolute effects; acknowledges some limitations; discusses certainty of evidence; reports the potential harms, alternatives and costs; and does not argue based on personal experiences. RESULTS Gastrointestinal health (86.0%), general health (57.9%), cardiovascular health (53.5%) and immune system health (50.9%) were the most widely mentioned topics. Half of claims (52.6%, 70/133) were supported by evidence from systematic reviews. Probiotics had the highest number of claims supported by evidence and kombucha the lowest. The highest certainty was found for antibiotic-associated diarrhoea, necrotising enterocolitis and otitis (moderate) in probiotics and yoghurt, infectious diarrhoea and hepatic encephalopathy (moderate) in prebiotics, and cardiovascular health (high to moderate) and colorectal cancer (moderate) in fibre. On a scale of 0-10, the median information quality score for all web pages was 3. Only 18.4% reported study conclusions, 7.9% quantified the effects, 28.9% acknowledged some limitations in the research and 42.1% reported potential harms. CONCLUSIONS Most online health claims for dietary interventions intended for improving health through the gut microbiome are supported by low or very low certainty of evidence. Online information does not align with the evidence and is incomplete or unbalanced.
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Affiliation(s)
- Andreu Prados-Bo
- Departament de Comunicació, Universitat Pompeu Fabra, Barcelona, Spain
- Facultat de Ciències de la Salut Blanquerna, Universitat Ramon Llull, Barcelona, Spain
| | - Montserrat Rabassa
- Unitat de Nutrició i Salut, Eurecat, Centre Tecnològic de Catalunya, Reus, Spain
| | - Mireia Bosch
- Unitat de Nutrició i Salut, Eurecat, Centre Tecnològic de Catalunya, Reus, Spain
| | - Gonzalo Casino
- Departament de Comunicació, Universitat Pompeu Fabra, Barcelona, Spain
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
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Ortega MA, Fraile-Martínez Ó, García-Montero C, Alvarez-Mon MA, Lahera G, Monserrat J, Llavero-Valero M, Gutiérrez-Rojas L, Molina R, Rodríguez-Jimenez R, Quintero J, De Mon MA. Biological Role of Nutrients, Food and Dietary Patterns in the Prevention and Clinical Management of Major Depressive Disorder. Nutrients 2022; 14:3099. [PMID: 35956276 PMCID: PMC9370795 DOI: 10.3390/nu14153099] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/20/2022] [Accepted: 07/26/2022] [Indexed: 02/06/2023] Open
Abstract
Major Depressive Disorder (MDD) is a growing disabling condition affecting around 280 million people worldwide. This complex entity is the result of the interplay between biological, psychological, and sociocultural factors, and compelling evidence suggests that MDD can be considered a disease that occurs as a consequence of an evolutionary mismatch and unhealthy lifestyle habits. In this context, diet is one of the core pillars of health, influencing multiple biological processes in the brain and the entire body. It seems that there is a bidirectional relationship between MDD and malnutrition, and depressed individuals often lack certain critical nutrients along with an aberrant dietary pattern. Thus, dietary interventions are one of the most promising tools to explore in the field of MDD, as there are a specific group of nutrients (i.e., omega 3, vitamins, polyphenols, and caffeine), foods (fish, nuts, seeds fruits, vegetables, coffee/tea, and fermented products) or dietary supplements (such as S-adenosylmethionine, acetyl carnitine, creatine, amino acids, etc.), which are being currently studied. Likewise, the entire nutritional context and the dietary pattern seem to be another potential area of study, and some strategies such as the Mediterranean diet have demonstrated some relevant benefits in patients with MDD; although, further efforts are still needed. In the present work, we will explore the state-of-the-art diet in the prevention and clinical support of MDD, focusing on the biological properties of its main nutrients, foods, and dietary patterns and their possible implications for these patients.
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Affiliation(s)
- Miguel A. Ortega
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, 28805 Alcalá de Henares, Spain
| | - Óscar Fraile-Martínez
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Miguel Angel Alvarez-Mon
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain; (M.L.-V.); (J.Q.)
| | - Guillermo Lahera
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain; (M.L.-V.); (J.Q.)
- Psychiatry Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, 28806 Alcalá de Henares, Spain
| | - Jorge Monserrat
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Maria Llavero-Valero
- Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain; (M.L.-V.); (J.Q.)
| | - Luis Gutiérrez-Rojas
- Department of Psychiatry and CTS-549 Research Group, Institute of Neuroscience, University of Granada, 18071 Granada, Spain;
- Psychiatry Service, San Cecilio University Hospital, 18016 Granada, Spain
| | - Rosa Molina
- Department of Psychiatry and Mental, Health San Carlos University Hospital (HCSC), 28034 Madrid, Spain;
- Research Biomedical Fundation of HCSC Hospital, 28034 Madrid, Spain
- Department of Psychology, Comillas University, Cantoblanco, 28015 Madrid, Spain
| | - Roberto Rodríguez-Jimenez
- Department of Legal Medicine, Psychiatry, and Pathology, Complutense University (UCM), 28040 Madrid, Spain;
- Institute for Health Research 12 de Octubre Hospital, (imas12)/CIBERSAM-ISCIII (Biomedical Research Networking Centre in Mental Health), 28041 Madrid, Spain
| | - Javier Quintero
- Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain; (M.L.-V.); (J.Q.)
- Department of Legal Medicine, Psychiatry, and Pathology, Complutense University (UCM), 28040 Madrid, Spain;
| | - Melchor Alvarez De Mon
- Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcalá de Henares, Spain; (Ó.F.-M.); (C.G.-M.); (M.A.A.-M.); (G.L.); (J.M.); (M.A.D.M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, University Hospital Príncipe de Asturias, (CIBEREHD), 28806 Alcalá de Henares, Spain
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Kombucha: Perceptions and Future Prospects. Foods 2022; 11:foods11131977. [PMID: 35804792 PMCID: PMC9265386 DOI: 10.3390/foods11131977] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/19/2022] [Accepted: 06/29/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Kombucha is an increasingly consumed product classified as a nutraceutical. Legislative efforts about these products remain confusing and without global harmonization. This natural product has been developed to improve or promote physical and mental health. However, it needs regulatory guidelines to control the production and guarantee the product’s efficacy and safety. Aim: The study intends to draw attention to the need for regulatory guidelines and the potential of this product in the market and peoples’ health. Key findings and conclusions: The lack of regulation and the low level of literacy about this product can limit its development, marketing, and impact on health. Thus, it is essential to highlight the potential value of this product and invest in its development and marketing. Likewise, it is important to spread awareness among the population of these products and their impacts on people’s health. Thus, this study focuses on a pertinent theme and alerts to the need for legislation for these products, to draw attention to the inexistent legislative control and the consequent need for regulatory guidelines for better and safer production and consumption.
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Mukherjee A, Gómez-Sala B, O'Connor EM, Kenny JG, Cotter PD. Global Regulatory Frameworks for Fermented Foods: A Review. Front Nutr 2022; 9:902642. [PMID: 35719144 PMCID: PMC9198641 DOI: 10.3389/fnut.2022.902642] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/29/2022] [Indexed: 11/13/2022] Open
Abstract
In recent years, there has been a global resurgence of public interest in fermented foods. In parallel, there have been several new studies that associate the consumption of fermented foods with a variety of beneficial impacts. These combined developments have led to a renewed focus in research and innovation vis-à-vis fermented foods, particularly traditional fermented foods, with an aim to harness this information to develop novel fermented foodstuffs and ingredients and make them available in the market. Consequently, an ever greater and more diverse array of fermented foods, including functional fermented foods with health benefits, are becoming available for public consumption in global markets, with the number expected to grow substantially in the coming decade. This rapidly expanding portfolio of commercially available fermented foods has in turn required an evolution in the corresponding global regulatory frameworks. Due to the innovative and emerging nature of these foods, combined with historical differences in regulator approaches, significant disharmony exists across these frameworks, with individual nations and organizations often adopting unique approaches relating to the establishment of standards and specifications. In this review, we provide an overview of the current regulatory frameworks for a diversity of fermented foods across multiple jurisdictions, with special emphasis on differences in legislative structures and approaches, regulatory harmonization, and current legislative limitations. Overall, the review provides important perspective and context in relation to current global fermented food regulatory practices with possible directions and recommendations for future legislative efforts.
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Affiliation(s)
- Arghya Mukherjee
- Department of Food Biosciences, Teagasc Food Research Centre, Fermoy, Ireland
| | - Beatriz Gómez-Sala
- Department of Food Biosciences, Teagasc Food Research Centre, Fermoy, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Eibhlís M. O'Connor
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
| | - John G. Kenny
- Department of Food Biosciences, Teagasc Food Research Centre, Fermoy, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Paul D. Cotter
- Department of Food Biosciences, Teagasc Food Research Centre, Fermoy, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- VistaMilk SFI Research Centre, Cork, Ireland
- *Correspondence: Paul D. Cotter
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Barakat N, Beaufort S, Rizk Z, Bouajila J, Taillandier P, El Rayess Y. Kombucha analogues around the world: A review. Crit Rev Food Sci Nutr 2022; 63:10105-10129. [PMID: 35486588 DOI: 10.1080/10408398.2022.2069673] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Kombucha is a traditional healthy beverage usually made by the fermentation of sweetened tea with a symbiotic culture of bacteria and yeast. The consumption of kombucha is associated with numerous health benefits and therefore the beverage has attracted the attention of consumers worldwide. Non-typical substrates (fruits, vegetables, plants, herbs, dairy, and by-products) are being inoculated with the kombucha consortium in an attempt to develop new products. This review paper reviews the fermentation parameters for different non-tea substrates used to make kombucha, in addition to the findings obtained in terms of physico-chemical analysis, biological activities and sensory evaluation.
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Affiliation(s)
- Nathalie Barakat
- INPT, UPS, CNRS, Laboratoire de Génie Chimique, Université de Toulouse, Toulouse, France
| | - Sandra Beaufort
- INPT, UPS, CNRS, Laboratoire de Génie Chimique, Université de Toulouse, Toulouse, France
| | - Ziad Rizk
- Wine Department, Lebanese Agricultural Research Institute, Jdeideh, Lebanon
| | - Jalloul Bouajila
- INPT, UPS, CNRS, Laboratoire de Génie Chimique, Université de Toulouse, Toulouse, France
| | - Patricia Taillandier
- INPT, UPS, CNRS, Laboratoire de Génie Chimique, Université de Toulouse, Toulouse, France
| | - Youssef El Rayess
- Department of Agriculture and Food Engineering, School of Engineering, Holy Spirit University of Kaslik, Jounieh, Lebanon
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