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Bozkir E, Yilmaz B, Sharma H, Esatbeyoglu T, Ozogul F. Challenges in water kefir production and limitations in human consumption: A comprehensive review of current knowledge. Heliyon 2024; 10:e33501. [PMID: 39035485 PMCID: PMC11259891 DOI: 10.1016/j.heliyon.2024.e33501] [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: 01/19/2024] [Revised: 06/09/2024] [Accepted: 06/21/2024] [Indexed: 07/23/2024] Open
Abstract
Water kefir is a convenient dairy-free alternative to dairy-based fermented beverages. It is prepared by fermenting a sucrose solution with fresh and dried fruits using water kefir grains, and demineralized whey can be used in water kefir production. This review describes current knowledge on water kefir production and its health effects. The main aims of this paper are to focus on the microbial composition, potential health-promoting properties, limitations in human consumption, and challenges in the production of water kefir. Water kefir grains and substrates, including brown sugar, dried and fresh fruits, vegetables, and molasses, used in the production influence the fermentation characteristics and composition of water kefir. Lactic acid bacteria, acetic acid bacteria, and yeasts are the microorganisms involved in the fermentation process. Lactobacillus species are the most common microorganisms found in water kefir. Water kefir contains various bioactive compounds that have potential health benefits. Water kefir may inhibit the growth of certain pathogenic microorganisms and food spoilage bacteria, resulting in various health-promoting properties, including immunomodulatory, antihypertensive, anti-inflammatory, anti-ulcerogenic, antiobesity, hypolipidemic, and hepatoprotective activities.
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Affiliation(s)
- Eda Bozkir
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Italy
| | - Birsen Yilmaz
- Department of Biological Sciences, Tata Institute of Fundamental Research, Hyderabad, India
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Cukurova University, 01330, Adana, Turkiye
| | - Heena Sharma
- Food Technology Lab, Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Tuba Esatbeyoglu
- Department of Molecular Food Chemistry and Food Development, Institute of Food and One Health, Gottfried Wilhelm Leibniz University Hannover, Am Kleinen Felde 30, 30167, Hannover, Germany
| | - Fatih Ozogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, 01330, Adana, Turkiye
- Biotechnology Research and Application Center, Cukurova University, Adana, 01330, Turkiye
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Gökırmaklı Ç, Şatır G, Guzel‐Seydim ZB. Microbial viability and nutritional content of water kefir grains under different storage conditions. Food Sci Nutr 2024; 12:4143-4150. [PMID: 38873456 PMCID: PMC11167166 DOI: 10.1002/fsn3.4074] [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: 09/06/2023] [Revised: 02/18/2024] [Accepted: 02/24/2024] [Indexed: 06/15/2024] Open
Abstract
Water kefir grains are an important source of probiotics, mainly containing lactic acid bacteria and yeasts. The aim of this study is to investigate the changes in microbial and chemical properties of water kefir grains during 1-month storage at +4°C and -18°C. The initial content of lactobacilli, lactococci, and yeast in water kefir grains was 6.06, 6.33, and 5.93 log CFU/g, respectively. The number of lactobacilli, Lactobacillus acidophilus, and Bifidobacterium spp. in the water kefir grains were comparable, with slight changes at the end of refrigerated storage (p > .05). Lactococci and yeasts decreased significantly after both storage conditions compared to the initial content (p < .05). The dry matter and ash contents remained unchanged during storage (p > .05). Water kefir grains contained significant amounts of calcium, vitamin B2, vitamin B6, vitamin B7, and vitamin B12. Storage at both +4°C and -18°C did not affect the mineral and vitamin contents, except for Cu and Vitamin B2. The results indicate that the water kefir grains remained viable after storage at both temperatures. If water kefir grains need to be stored, it is recommended to store them at +4°C in sugared water as it ensures better survivability of the microbiota of the grains.
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Affiliation(s)
- Çağlar Gökırmaklı
- Department of Food EngineeringSuleyman Demirel UniversityIspartaTurkey
| | - Gülçin Şatır
- Department of Nutrition and DieteticsSuleyman Demirel UniversityIspartaTurkey
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Cecone C, Hoti G, Caldera F, Ginepro M, Matencio A, Trotta F. Evaluation of the Swelling Properties and Sorption Capacity of Maltodextrin-Based Cross-Linked Polymers. Gels 2024; 10:232. [PMID: 38667651 PMCID: PMC11049296 DOI: 10.3390/gels10040232] [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: 02/29/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
The development of polymers obtained from renewable sources such as polysaccharides has gained scientific and industrial attention. Cross-linked bio-derived cationic polymers were synthesized via a sustainable approach exploiting a commercial maltodextrin product, namely, Glucidex 2®, as the building block, while diglycidyl ethers and triglycidyl ethers were used as the cross-linking agents. The polymer products were characterized via FTIR-ATR, TGA, DSC, XRD, SEM, elemental analysis, and zeta-potential measurements, to investigate their composition, structure, and properties. Polydispersed amorphous granules displaying thermal stabilities higher than 250 °C, nitrogen contents ranging from 0.8 wt % and 1.1 wt %, and zeta potential values between 10 mV and 15 mV were observed. Subsequently, water absorption capacity measurements ranging from 800% to 1500%, cross-linking density determination, and rheological evaluations demonstrated the promising gel-forming properties of the studied systems. Finally, nitrate, sulfate, and phosphate removal tests were performed to assess the possibility of employing the studied polymer products as suitable sorbents for water remediation. The results obtained from the ion chromatography technique showed high sorption rates, with 80% of nitrates, over 90% of sulfates, and total phosphates removal.
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Affiliation(s)
- Claudio Cecone
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Gjylije Hoti
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
- Department of Drug Science and Technology, Università degli Studi di Torino, Via P. Giuria 9, 10125 Turin, Italy
| | - Fabrizio Caldera
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Marco Ginepro
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Adrián Matencio
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Francesco Trotta
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
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Wang W, Tang W, Wang X, Liu W, Zhu F. Genes from Carboxypeptidase A, glutathione S-transferase, and cytochrome b families were found involved in lead transport in insect Musca domestica. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113113. [PMID: 34968798 DOI: 10.1016/j.ecoenv.2021.113113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/10/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Lead (Pb) is a typical toxic contamination source all over the world. In this research, larvae of the housefly (Musca domestica) were fed a Pb-contaminated diet at different Pb doses of 0, 20 and 5000 mg/kg. RNA sequencing was used to identify genes that were differentially expressed in relation to lead transport or detoxification. RNA interference (RNAi) was carried on 12 candidate genes. The results showed that three luminal pH regions of mid-gut were at pH values of 6.33, 3.10, and 7.80. With increasing Pb concentration, the pH of the middle mid-gut decreased by one unit. The expression levels of carboxypeptidase A (CPA1), glutathione S-transferase (GST), and cytochrome b (Cyt b) were linked to Pb treatments, particularly high Pb concentration of 5000 mg/kg. RNAi-mediated down expression of CPA1, GST2, and CYTb-c1 resulted in low Pb accumulation in the larvae of 5000 mg/kg Pb group. These proteins played key roles in Pb transport and detoxification in M. domestica larvae.
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Affiliation(s)
- Wanqiang Wang
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan 430070, China.
| | - Wenzheng Tang
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaoping Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
| | - Wen Liu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
| | - Fen Zhu
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan 430070, China.
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Pendón MD, Bengoa AA, Iraporda C, Medrano M, Garrote GL, Abraham AG. Water kefir: Factors affecting grain growth and health-promoting properties of the fermented beverage. J Appl Microbiol 2021; 133:162-180. [PMID: 34822204 DOI: 10.1111/jam.15385] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 10/18/2021] [Accepted: 11/22/2021] [Indexed: 01/07/2023]
Abstract
Nowadays, the interest in the consumption of healthy foods has increased as well as the homemade preparation of artisanal fermented product. Water kefir is an ancient drink of uncertain origin, which has been passed down from generation to generation and is currently consumed practically all over the world. Considering the recent and extensive updates published on sugary kefir, this work aims to shed light on the scientific works that have been published so far in relation to this complex ecosystem. We focused our review evaluating the factors that affect the beverage microbial and chemical composition that are responsible for the health attribute of water kefir as well as the grain growth. The microbial ecosystem that constitutes the grains and the fermented consumed beverage can vary according to the fermentation conditions (time and temperature) and especially with the use of different substrates (source of sugars, additives as fruits and molasses). In this sense, the populations of microorganisms in the beverage as well as the metabolites that they produce varies and in consequence their health properties. Otherwise, the knowledge of the variables affecting grain growth are also discussed for its relevance in maintenance of the starter biomass as well as the use of dextran for technological application.
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Affiliation(s)
- María Dolores Pendón
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Ana Agustina Bengoa
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Carolina Iraporda
- Departamento de Ingeniería Química y Tecnología de los Alimentos, Facultad de Ingeniería, UNCPBA, Olavarría, Argentina
| | - Micaela Medrano
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Graciela L Garrote
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Analía G Abraham
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina.,Área Bioquímica y Control de Alimentos, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
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Costamagna G, Volpi G, Ghibaudi E, Ginepro M. Quantitative insights on the interaction between metal ions and water kefir grains: kinetics studies and EPR investigations. Nat Prod Res 2020; 36:3440-3444. [DOI: 10.1080/14786419.2020.1855164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Giorgio Volpi
- Department of Chemistry, University of Turin, Torino, Italy
| | - Elena Ghibaudi
- Department of Chemistry, University of Turin, Torino, Italy
| | - Marco Ginepro
- Department of Chemistry, University of Turin, Torino, Italy
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Development of a Novel Whey Date Beverage Fermented with Kefir Grains Using Response Surface Methodology. J CHEM-NY 2019. [DOI: 10.1155/2019/1218058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to develop a novel kefir beverage using date syrup, whey permeate, and whey. The levels of the kefir grain inoculum (2–5% w/v), fruit syrup (10–50% w/v), and whey permeate (0–5% w/v) on pH, total phenolic content, antioxidant activity, lactic acid bacteria and yeast counts, and overall acceptability were investigated using central composite design. The use of response surface methodology allowed us to obtain a formulation with acceptable organoleptic properties and high antioxidant activities. The obtained beverages had total phenolic content, % DPPH scavenging activity, and overall acceptability ranging from 24 to 74 mg GAE/mL, from 74.80 to 91.37 mg GAE/mL, and from 3.50 to 6 mg GAE/mL (based on a 1 to 9 preference scale), respectively. Date syrup of 36.76% (w/v), whey permeates of 2.99%, and kefir grains inoculum size of 2.08% were the optimized process conditions achieved.
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