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Baars T, van Esch B, van Ooijen L, Zhang Z, Dekker P, Boeren S, Diks M, Garssen J, Hettinga K, Kort R. Raw milk kefir: microbiota, bioactive peptides, and immune modulation. Food Funct 2023; 14:1648-1661. [PMID: 36691758 DOI: 10.1039/d2fo03248a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This study aims to characterize the microbiota and peptidomic composition of raw milk kefir, and to address the potential anti-allergic effects of raw milk kefir using validated research models for food allergy. Raw milk kefir was produced after incubation with a defined freeze-dried starter culture. Kefir was sampled during fermentation at seven time intervals. For comparison, kefir was also prepared from heat-treated milk. Peptide compositions were determined for the raw and heated milk, and kefir end products made from these milks. In a murine food allergy model, the two kefir end products were investigated for their allergy modulating effects. In both kefirs, we identified amplicon sequence variants identical to those in the starter culture, matching the bacteria Lactococcus lactis, Streptococcus thermophilus, Leuconostoc and the yeast Debaryomyces. In raw milk kefir, additional sequence variants of Lactococcus lactis and the yeasts Pichia and Galactomyces could be identified, which were absent in heated milk kefir. Analysis of peptide compositions in both kefirs indicated that the number and intensity of peptides drastically increased after fermentation. Heating of the milk negatively affected the diversity of the peptide composition in kefir. Only raw milk kefir suppressed the acute allergic skin response to the food allergen ovalbumin in sensitised mice. These effects coincided with differences in the T-cell compartment, with lower percentages of activated Th1 cells and IFNg production after treatment with kefir made from heated milk. The results of this study indicate specific properties of raw milk kefir that may contribute to its additional health benefits.
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Affiliation(s)
- Ton Baars
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
| | - Betty van Esch
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
| | - Luuk van Ooijen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands. .,Amsterdam Institute for Life and Environment, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
| | - Zuomin Zhang
- Food Quality and Design Group, Wageningen University & Research, Wageningen, The Netherlands
| | - Pieter Dekker
- Food Quality and Design Group, Wageningen University & Research, Wageningen, The Netherlands.,Laboratory of Biochemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Sjef Boeren
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Mara Diks
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
| | - Kasper Hettinga
- Food Quality and Design Group, Wageningen University & Research, Wageningen, The Netherlands
| | - Remco Kort
- Amsterdam Institute for Life and Environment, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands. .,ARTIS-Micropia, Amsterdam, The Netherlands
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Nascimento da Silva K, Fávero AG, Ribeiro W, Ferreira CM, Sartorelli P, Cardili L, Bogsan CS, Bertaglia Pereira JN, de Cássia Sinigaglia R, Cristina de Moraes Malinverni A, Ribeiro Paiotti AP, Miszputen SJ, Ambrogini-Júnior O. Effects of kefir fermented milk beverage on sodium dextran sulfate (DSS)-induced colitis in rats. Heliyon 2022; 9:e12707. [PMID: 36685418 PMCID: PMC9852935 DOI: 10.1016/j.heliyon.2022.e12707] [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: 07/08/2022] [Revised: 11/14/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Background and aim The etiopathogenesis of inflammatory bowel disease (IBD) is associated with different factors such as genetic, infectious, immunological, and environmental, including modification of the gut microbiota. IBD's conventional pharmacological therapeutic approaches have become a challenge due to side effects, complications from prolonged use, and higher costs. Kefir fermented milk beverage is a functional food that has demonstrated multiple beneficial effects including anti-inflammatory and antioxidant activity. Alternative therapeutic strategies have been used for IBD as more natural products with low-cost and easy acquisition. The aim of this study is to evaluate the anti-inflammatory effects of kefir fermented milk beverage on sodium dextran sulfate (DSS)-induced colitis in rats. Methods We used 4 groups to perform this study: baseline control (BC), kefir control (KC), 5% untreated DSS-induced colitis (DSS), and 5% DSS-induced colitis treated with kefir (DSSK). The animals received fermented kefir milk beverage ad libitum for six days and the disease activity index was recorded daily. Colon samples were processed for Transmission Electron Microscopy and histopathological evaluation. We analyzed short fatty chain acids through the fecal sample using gas chromatography. Results Kefir supplementation was able to reduce the clinical activity index and inflammatory process evidenced by decreased neutrophil accumulation, decreased reticulum edema, and increased autophagosomes. Also, showed a trend to increase the levels of acetate and propionate. Conclusions Our results suggest that kefir fermented milk beverage may have an anti-inflammatory effect minimizing the intestinal damage of DSS-induced colitis.
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Affiliation(s)
- Karina Nascimento da Silva
- Division of Gastroenterology, Universidade Federal de São Paulo – Escola Paulista de Medicina, UNIFESP, SP, Brazil
| | - Aline Garnevi Fávero
- Division of Gastroenterology, Universidade Federal de São Paulo – Escola Paulista de Medicina, UNIFESP, SP, Brazil
| | - William Ribeiro
- Institute of Environmental, Chemistry and Pharmaceutical Sciences, Department of Pharmaceutics Sciences - Universidade Federal de São Paulo, Diadema, SP, Brazil
| | - Caroline Marcantonio Ferreira
- Institute of Environmental, Chemistry and Pharmaceutical Sciences, Department of Pharmaceutics Sciences - Universidade Federal de São Paulo, Diadema, SP, Brazil
| | - Patrícia Sartorelli
- Institute of Environmental, Chemistry and Pharmaceutical Sciences, Department of Pharmaceutics Sciences - Universidade Federal de São Paulo, Diadema, SP, Brazil
| | - Leonardo Cardili
- Laboratory of Experimental and Molecular Pathology, Department of Pathology - Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Cristina Stewart Bogsan
- Laboratory of Fermented Foods of the Faculty of Pharmaceutical Sciences – University of São Paulo
| | | | | | | | - Ana Paula Ribeiro Paiotti
- Division of Gastroenterology, Universidade Federal de São Paulo – Escola Paulista de Medicina, UNIFESP, SP, Brazil,Corresponding author.
| | - Sender Jankiel Miszputen
- Division of Gastroenterology, Universidade Federal de São Paulo – Escola Paulista de Medicina, UNIFESP, SP, Brazil
| | - Orlando Ambrogini-Júnior
- Division of Gastroenterology, Universidade Federal de São Paulo – Escola Paulista de Medicina, UNIFESP, SP, Brazil
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