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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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2
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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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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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da Anunciação TA, Guedes JDS, Tavares PPLG, de Melo Borges FE, Ferreira DD, Costa JAV, Umsza-Guez MA, Magalhães-Guedes KT. Biological Significance of Probiotic Microorganisms from Kefir and Kombucha: A Review. Microorganisms 2024; 12:1127. [PMID: 38930509 PMCID: PMC11205597 DOI: 10.3390/microorganisms12061127] [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: 04/23/2024] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
(1) Background: The human microbiota is essential for maintaining a healthy body. The gut microbiota plays a protective role against pathogenic bacteria. Probiotics are live microorganisms capable of preventing and controlling gastrointestinal and balancing the immune system. They also aid in better nutrients and vitamins absorption. Examples of natural probiotic cultures are kefir and kombucha. (2) Methods: Therefore, the aim of this review was to address the beneficial properties of probiotic kefir and kombucha using a Boxplot analysis to search for scientific data in the online literature up to January 2024: (Latin American and Caribbean Health Sciences (LILACS), PubMed, Medical Literature Analysis (MED-LINE), Science Direct, Google Scholar/Google Academic, Bioline Inter-national and Springer Link). Boxplots showed the summary of a set of data "Index Terms-Keywords" on kefir and kombucha in three languages (English, Portuguese and Spanish). (3) Results: Google Scholar was the database with the highest number of articles found, when the search for the keywords used in the study (containing ~4 × 106-~4 million articles available). This was Followed by the Science Direct database, containing ~3 × 106-~3 million articles available, and the BVS databases-Biblioteca Virtual de Saúde (Virtual Health Library) e Lilacs, both containing a value of ~2 × 106-~2 million articles available. The databases containing the smallest number of articles found were Nutrients and Medline, both containing a value of ≤0.1 × 106-≤100 thousand articles. (4) Conclusions: Scientific studies indicate that kefir and kombucha certainly contain various functional properties, such as antimicrobial, antitumor, anticarcinogenic and immunomodulatory activity, in addition to having a microbiological composition of probiotic bacteria and yeasts. Kefir and kombucha represent key opportunities in the food and clinic/medical fields.
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Affiliation(s)
- Talita Andrade da Anunciação
- Post-Graduate Program in Food Science, Bromatological Analysis Department, Pharmacy Faculty, Federal University of Bahia (UFBA), Barão of Jeremoabo Street, s/n, Ondina, Salvador 40171-970, BA, Brazil; (T.A.d.A.); (P.P.L.G.T.)
| | - Juan Diego Silva Guedes
- Post-Graduate Program in Industrial Engineering, Polytechnic School, Federal University of Bahia (UFBA), Street Professor Aristídes Novis, 02, Federação, Salvador 40210-630, BA, Brazil;
| | - Pedro Paulo Lordelo Guimarães Tavares
- Post-Graduate Program in Food Science, Bromatological Analysis Department, Pharmacy Faculty, Federal University of Bahia (UFBA), Barão of Jeremoabo Street, s/n, Ondina, Salvador 40171-970, BA, Brazil; (T.A.d.A.); (P.P.L.G.T.)
| | - Fernando Elias de Melo Borges
- Post-Graduate Program in Systems Engineering and Automation, Department of Engineering, Federal University of Lavras (UFLA), University Campus, Lavras 37000-200, MG, Brazil; (F.E.d.M.B.); (D.D.F.)
| | - Danton Diego Ferreira
- Post-Graduate Program in Systems Engineering and Automation, Department of Engineering, Federal University of Lavras (UFLA), University Campus, Lavras 37000-200, MG, Brazil; (F.E.d.M.B.); (D.D.F.)
| | - Jorge Alberto Vieira Costa
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), Rio Grande 474-96203-900, RS, Brazil;
| | - Marcelo Andrés Umsza-Guez
- Post-Graduate Program in Food Science, Bromatological Analysis Department, Pharmacy Faculty, Federal University of Bahia (UFBA), Barão of Jeremoabo Street, s/n, Ondina, Salvador 40171-970, BA, Brazil; (T.A.d.A.); (P.P.L.G.T.)
| | - Karina Teixeira Magalhães-Guedes
- Post-Graduate Program in Food Science, Bromatological Analysis Department, Pharmacy Faculty, Federal University of Bahia (UFBA), Barão of Jeremoabo Street, s/n, Ondina, Salvador 40171-970, BA, Brazil; (T.A.d.A.); (P.P.L.G.T.)
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Melkis K, Jakubczyk K. The Chemical Profiles and Antioxidant Properties of Live Fruit or Vegetable Vinegars Available on the Polish Food Market. Foods 2024; 13:1488. [PMID: 38790788 PMCID: PMC11119752 DOI: 10.3390/foods13101488] [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: 03/05/2024] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Live vinegar is a product formed through a two-step fermentation process of a sugar substrate that has not been subjected to filtration or pasteurization. This is considered to preserve all nutrients and biologically active microorganisms, making it a product with a valuable composition and beneficial properties. Therefore, the purpose of this study was to analyze the chemical composition and antioxidant properties of the selected vinegars available on the Polish food market. The material in the study consisted of four live (naturally turbid, unfiltered, unpasteurized) fruit or vegetable vinegars: apple, pear, rhubarb, and lemon. Spectrophotometric, HPLC, and GC methods were used. Among the vinegars tested, lemon vinegar had the highest vitamin C content-15.95 mg/100 mL. Apple vinegar proved to be the best source of polyphenols and flavonoids (TPC-191.97 mg GAE/L, TFC-70.22 mg RE/L). All of the vinegars contained dihydroxybenzoic acid, 4-hydroxybenzoic acid, caffeic acid, 2-hydroxycinnamic acid, and myricetin. The acetic acid content of the tested vinegars ranged from 29.180 to 38.125 mM/L. The pH values ranged from 3.14 to 3.41. In conclusion, the most promising nutraceutical with potentially beneficial health-promoting properties seems to be apple vinegar.
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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;
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Jakubczyk K, Melkis K, Janda-Milczarek K, Skonieczna-Żydecka K. Phenolic Compounds and Antioxidant Properties of Fermented Beetroot Juices Enriched with Different Additives. Foods 2023; 13:102. [PMID: 38201130 PMCID: PMC10778454 DOI: 10.3390/foods13010102] [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: 11/14/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Fermented beetroot juice is a beverage obtained from the fermentation of beetroot, most commonly red beet (Beta vulgaris L. var. conditiva). Nowadays, this product is increasingly recognised as a functional food with potentially beneficial health properties. It has been suggested to have antioxidant, anti-inflammatory, anticancer, antihypertensive, immunomodulatory, and probiotic effects, among others. Moreover, with the increasing popularity of the drink, newer variants are appearing in the food market, obtained by modifying the traditional recipe, adding other raw materials, herbs, and spices. Therefore, the aim of this study was to evaluate and compare the antioxidant potential and phytochemical composition of the selected fermented beetroot juices in different flavour variants available in the Polish food market. The study material consisted of six fermented beetroot juices: traditional, with garlic, with horseradish, with acerola, without salt, and iodized. The obtained results showed that the addition of acerola, horseradish, garlic, salt, and iodine in the form of sodium iodide and potassium iodide influenced the composition and properties of fermented beetroot juice. The most promising product in terms of potentially beneficial health properties related to the prevention of free radical diseases was fermented beetroot juice without salt (FRAP-5663.40 µM Fe (II)/L, ABTS-96.613%, TPC-760.020 mg GAE/L, TFC-221.280 mg RE/L). Iodized fermented beetroot juice had the highest vitamin C content-51.859 mg/100 mL. However, all the products tested were characterised by a significant content of biologically active substances with antioxidant properties and showed a high antioxidant potential. Moreover, all the fermented beetroot juices were rated positively in terms of flavour intensity, sweetness, acidity, colour, and overall acceptability. They can, therefore, be a good source of antioxidants in the daily diet.
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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 (K.J.-M.)
| | - Klaudia Melkis
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 24 Broniewskiego Street, 71-460 Szczecin, Poland (K.J.-M.)
| | - Katarzyna Janda-Milczarek
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 24 Broniewskiego Street, 71-460 Szczecin, Poland (K.J.-M.)
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Cohen G, Sela DA, Nolden AA. Sucrose Concentration and Fermentation Temperature Impact the Sensory Characteristics and Liking of Kombucha. Foods 2023; 12:3116. [PMID: 37628115 PMCID: PMC10453479 DOI: 10.3390/foods12163116] [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: 08/04/2023] [Revised: 08/09/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Kombucha is a fermented tea beverage consumed for its probiotics and functional properties. It has a unique sensory profile driven by the properties of tea polyphenols and fermentation products, including organic acids. Fermentation temperature and sucrose content affect the fermentation process and the production of organic acids; yet less is known about their impacts on the sensory profile and consumer acceptance. Thus, we aimed to examine the impact of sucrose concentration and fermentation temperature on sensory attributes and liking. For this study, kombucha tea was fermented at three different concentrations of sucrose and fermented at two temperatures for 11 days. Fermentation was monitored by pH, brix, and titratable acidity, and consumers (n = 111) evaluated the kombucha for sensory attributes and overall liking. The fermentation temperature resulted in significant differences in titratable acidity, with higher temperatures producing more organic acids, resulting in higher astringency, and suppressed sweetness. The lower fermentation was reported as significantly more liked, with no difference in liking between the 7.5% and 10% sucrose kombucha samples. Fermentation temperature had the greatest impact on the sensory profile rather than sucrose concentration, which had a greater effect on the fermentation rate and production organic acids.
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Affiliation(s)
- Gil Cohen
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - David A. Sela
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA
- Department of Nutrition, University of Massachusetts Amherst, Amherst, MA 01003, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Alissa A. Nolden
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA
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Pihurov M, Păcularu-Burada B, Cotârleț M, Grigore-Gurgu L, Borda D, Stănciuc N, Kluz M, Bahrim GE. Kombucha and Water Kefir Grains Microbiomes' Symbiotic Contribution to Postbiotics Enhancement. Foods 2023; 12:2581. [PMID: 37444320 DOI: 10.3390/foods12132581] [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: 06/12/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Wild artisanal cultures, such as a symbiotic culture of bacteria and yeasts (SCOBY) and water kefir grains (WKG), represent a complex microorganism consortia that is composed of yeasts and lactic and acetic acid bacteria, with large strains of diversity and abundance. The fermented products (FPs) obtained by the microbiome's contribution can be included in functional products due to their meta-biotics (pre-, pro-, post-, and paraprobiotics) as a result of complex and synergistic associations as well as due to the metabolic functionality. In this study, consortia of both SCOBY and WKG were involved in the co-fermentation of a newly formulated substrate that was further analysed, aiming at increasing the postbiotic composition of the FPs. Plackett-Burman (PBD) and Response Surface Methodology (RSM) techniques were employed for the experimental designs to select and optimise several parameters that have an influence on the lyophilised starter cultures of SCOBY and WKG activity as a multiple inoculum. Tea concentration (1-3%), sugar concentration (5-10%), raisins concentration (3-6%), SCOBY lyophilised culture concentration (0.2-0.5%), WKG lyophilised culture concentration (0.2-0.5%), and fermentation time (5-7 days) were considered the independent variables for mathematical analysis and fermentation conditions' optimisation. Antimicrobial activity against Bacillus subtilis MIUG B1, Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, and Aspergillus niger MIUG M5, antioxidant capacity (DPPH), pH and the total acidity (TA) were evaluated as responses. The rich postbiotic bioactive composition of the FP obtained in optimised biotechnological conditions highlighted the usefulness of the artisanal co-cultures, through their symbiotic metabolic interactions for the improvement of bioactive potential.
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Affiliation(s)
- Marina Pihurov
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
| | - Bogdan Păcularu-Burada
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
| | - Mihaela Cotârleț
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
| | - Leontina Grigore-Gurgu
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
| | - Daniela Borda
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
| | - Nicoleta Stănciuc
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
| | - Maciej Kluz
- Department of Bioenergetics and Food Analysis and Microbiology, University of Rzeszow, 35601 Rzeszow, Poland
| | - Gabriela Elena Bahrim
- Faculty of Food Science and Engineering, Dunărea de Jos University of Galați, Domnească Street No. 111, 800201 Galați, Romania
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Li S, Liu X, Wang L, Wang K, Li M, Wang X, Yuan Y, Yue T, Cai R, Wang Z. Innovative beverage creation through symbiotic microbial communities inspired by traditional fermented beverages: current status, challenges and future directions. Crit Rev Food Sci Nutr 2023; 64:10456-10483. [PMID: 37357963 DOI: 10.1080/10408398.2023.2225191] [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: 06/27/2023]
Abstract
Fermented beverages (FBs) are facing challenges in functional performance and flavor complexity, necessitating the development of new multi-functional options. Traditional fermented beverages (TFBs), both alcoholic and nonalcoholic, have gained increased attention for their health-promoting effects during the COVID-19 pandemic. This review summarized the primary commercially available probiotics of FBs, along with the limitations of single and mixed probiotic FBs. It also examined the recent research progress on TFBs, emphasizing the typical microbial communities (MC) of TFBs, and TFBs made from crops (grains, vegetables, fruits, etc.) worldwide and their associated functions and health benefits. Furthermore, the construction, technical bottlenecks of the synthetic MC involved in developing innovative FBs were presented, and the promising perspective of FBs was described. Drawing inspiration from the MC of TFBs, developing of stable and multifunctional FBs using synthetic MC holds great promise for beverage industry. However, synthetic MC suffers from structural instability and poorly acknowledged interaction mechanisms, resulting in disappointing results in FBs. Future researches should prioritize creating synthetic MC fermentation that closely resemble natural fermentation, tailored to meet the needs of different consumers. Creating personalized FBs with high-tech intelligence is vital in attracting potential consumers and developing novel beverages for the future.
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Affiliation(s)
- Shiqi Li
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Xiaoshuang Liu
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Leran Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Kai Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Menghui Li
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Xingnan Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
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10
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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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11
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Suffys S, Richard G, Burgeon C, Werrie PY, Haubruge E, Fauconnier ML, Goffin D. Characterization of Aroma Active Compound Production during Kombucha Fermentation: Towards the Control of Sensory Profiles. Foods 2023; 12:foods12081657. [PMID: 37107452 PMCID: PMC10138291 DOI: 10.3390/foods12081657] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/30/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Since the sensorial profile is the cornerstone for the development of kombucha as a beverage with mass market appeal, advanced analytical tools are needed to gain a better understanding of the kinetics of aromatic compounds during the fermentation process to control the sensory profiles of the drink. The kinetics of volatile organic compounds (VOCs) was determined using stir bar sorptive extraction-gas chromatography-mass spectrometry, and odor-active compounds were considered to estimate consumer perception. A total of 87 VOCs were detected in kombucha during the fermentation stages. The synthesis of mainly phenethyl alcohol and isoamyl alcohol probably by Saccharomyces genus led to ester formation. Moreover, the terpene synthesis occurring at the beginning of fermentation (Δ-3-carene, α-phellandrene, γ-terpinene, m- and p-cymene) could be related to yeast activity as well. Principal component analysis identified classes that allowed the major variability explanation, which are carboxylic acids, alcohols, and terpenes. The aromatic analysis accounted for 17 aroma-active compounds. These changes in the evolution of VOCs led to flavor variations: from citrus-floral-sweet notes (geraniol and linalool domination), and fermentation brought intense citrus-herbal-lavender-bergamot notes (α-farnesene). Finally, sweet-floral-bready-honey notes dominated the kombucha flavor (2-phenylethanol). As this study allowed to estimate kombucha sensory profiles, an insight for the development of new drinks by controlling the fermentation process was suggested. Such a methodology should allow a better control and optimization of their sensory profile, which could in turn lead to greater consumer acceptance.
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Affiliation(s)
- Sarah Suffys
- Laboratory of Gastronomic Sciences, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
| | - Gaëtan Richard
- Laboratory of Gastronomic Sciences, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
| | - Clément Burgeon
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
| | - Pierre-Yves Werrie
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
| | - Eric Haubruge
- Laboratory of Gastronomic Sciences, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
| | - Marie-Laure Fauconnier
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
| | - Dorothée Goffin
- Laboratory of Gastronomic Sciences, Gembloux Agro-Bio Tech, Liège University, 5030 Gembloux, Belgium
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