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Sanmartín G, Sánchez-Adriá IE, Prieto JA, Estruch F, Randez-Gil F. Bioprospecting of sourdough microbial species from artisan bakeries in the city of Valencia. Food Microbiol 2024; 120:104474. [PMID: 38431320 DOI: 10.1016/j.fm.2024.104474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/22/2023] [Accepted: 01/09/2024] [Indexed: 03/05/2024]
Abstract
This work describes the characterization of an artisanal sourdough set of bakeries located in the city of Valencia. Culture-dependent and -independent analyses detected Fructilactobacillus sanfranciscensis, Saccharomyces cerevisiae and Kazachstania humilis as dominant species. Nevertheless, specific technological parameters, including backslopping temperature, dough yield, or the addition of salt affected microbial counting, LAB/Yeast ratio, and gassing performance, favouring the appearance of several species of Lactobacillus sp., Limosilactobacillus pontis or Torulaspora delbrueckii as additional players. Sourdough leavening activity was affected positively by yeast counts and negatively by the presence of salt. In addition, the predominance of a particular yeast species appeared to impact the dynamics of CO2 release. Seven important flavour-active compounds (ethyl acetate, 1-hexanol, 2-penthylfuran, 3-ethyl-2-methyl-1,3-hexadiene, 2-octen-1-ol, nonanal and 1-nonanol) were detected in all samples and together with 3-methyl butanol and hexyl acetate represented more than the 53% of volatile abundancy in nine of the ten sourdoughs analysed. Even so, the specific microbial composition of each sample influenced the volatile profile. For example, the occurrence of K. humilis or S. cerevisiae as dominant yeast influenced the composition of major alcohol species, while F. sanfranciscensis and L. pontis positively correlated with aldehydes and octanoic acid content. In addition, relevant correlations could be also found among different technological parameters and between these, volatile compounds and microbial species. Overall, our study emphasises on how differences in technological parameters generate biodiversity in a relatively small set of artisan sourdoughs providing opportunities for excellence and quality baking products.
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Affiliation(s)
- Gemma Sanmartín
- Department of Biotechnology, Instituto de Agroquímica y Tecnología de Los Alimentos, Consejo Superior de Investigaciones Científicas, Avda. Agustín Escardino, 7, 46980, Paterna, Valencia, Spain
| | - Isabel E Sánchez-Adriá
- Department of Biotechnology, Instituto de Agroquímica y Tecnología de Los Alimentos, Consejo Superior de Investigaciones Científicas, Avda. Agustín Escardino, 7, 46980, Paterna, Valencia, Spain
| | - Jose A Prieto
- Department of Biotechnology, Instituto de Agroquímica y Tecnología de Los Alimentos, Consejo Superior de Investigaciones Científicas, Avda. Agustín Escardino, 7, 46980, Paterna, Valencia, Spain
| | - Francisco Estruch
- Department of Biochemistry and Molecular Biology, Universitat de València, Dr. Moliner 50, 46100, Burjassot, Spain
| | - Francisca Randez-Gil
- Department of Biotechnology, Instituto de Agroquímica y Tecnología de Los Alimentos, Consejo Superior de Investigaciones Científicas, Avda. Agustín Escardino, 7, 46980, Paterna, Valencia, Spain.
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Pradal I, González-Alonso V, Wardhana YR, Cnockaert M, Wieme AD, Vandamme P, De Vuyst L. Various cold storage-backslopping cycles show the robustness of Limosilactobacillus fermentum IMDO 130101 as starter culture for Type 3 sourdough production. Int J Food Microbiol 2024; 411:110522. [PMID: 38160537 DOI: 10.1016/j.ijfoodmicro.2023.110522] [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: 04/29/2023] [Revised: 11/22/2023] [Accepted: 12/10/2023] [Indexed: 01/03/2024]
Abstract
Type 3 sourdoughs, which are starter culture-initiated and subsequently backslopped, are less studied than other sourdough types. Yet, they can serve as a model to assess how competitive starter culture strains for sourdough production are and how the microbial composition of such sourdoughs may evolve over time. In the present study, Limosilactobacillus fermentum IMDO 130101 was used to produce Type 3 sourdoughs, prepared from wheat and wholemeal wheat flours. Therefore, an initial fermentation of the flour-water mixture was performed at 30 °C for 48 h. This was followed by cold storage-backslopping cycles, consisting of refreshments (50 %, v/v), fermentation steps of 16 h, and storage at 4 °C each week, every three weeks, and every six weeks. The microbial dynamics (culture-dependent and -independent approaches) and metabolite dynamics were measured. In all sourdoughs produced, starter culture strain monitoring, following an amplicon sequence variant approach, showed that Liml. fermentum IMDO 130101 prevailed during one month when the sourdoughs were refreshed each week, during 24 weeks when the sourdoughs were refreshed every three weeks, and during 12 weeks when the sourdoughs were refreshed every six weeks. This suggested the competitiveness and robustness of Liml. fermentum IMDO 130101 for a considerable duration but also showed that the strain is prone to microbial interference. For instance, Levilactobacillus brevis and Pediococcus spp. prevailed upon further cold storage and backslopping. Also, although no yeasts were inoculated into the flour-water mixtures, Kazachstania unispora, Torulaspora delbrueckii, and Wickerhamomyces anomalus were the main yeast species found. They appeared after several weeks of storage and backslopping, which however indicated the importance of an interplay between LAB and yeast species in sourdoughs. The main differences among the mature sourdoughs obtained could be explained by the different flours used, the refreshment conditions applied, and the sampling time (before and after backslopping). Finally, the metabolite quantifications revealed continued metabolite production during the cold storage periods, which may impact the sourdough properties and those of the breads made thereof.
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Affiliation(s)
- Inés Pradal
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium
| | - Víctor González-Alonso
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium
| | - Yohanes Raditya Wardhana
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium
| | - Margo Cnockaert
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium
| | - Anneleen D Wieme
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium; BCCM/LMG Bacteria Collection, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Peter Vandamme
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium; BCCM/LMG Bacteria Collection, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Luc De Vuyst
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium.
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3
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Sabach O, Buhnik-Rosenblau K, Kesten I, Freilich S, Freilich S, Kashi Y. The rise of the sourdough: Genome-scale metabolic modeling-based approach to design sourdough starter communities with tailored-made properties. Int J Food Microbiol 2023; 407:110402. [PMID: 37778079 DOI: 10.1016/j.ijfoodmicro.2023.110402] [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: 01/17/2023] [Revised: 07/31/2023] [Accepted: 08/05/2023] [Indexed: 10/03/2023]
Abstract
Sourdough starters harbor microbial consortia that benefit the final product's aroma and volume. The complex nature of these spontaneously developed communities raises challenges in predicting the fermentation phenotypes. Herein, we demonstrated for the first time in this field the potential of genome-scale metabolic modeling (GEMs) in the study of sourdough microbial communities. Broad in-silico modeling of microbial growth was applied on communities composed of yeast (Saccharomyces cerevisiae) and different Lactic Acid Bacteria (LAB) species, which mainly predominate in sourdough starters. Simulations of model-represented communities associated specific bacterial compositions with sourdough phenotypes. Based on ranking the phenotypic performances of different combinations, Pediococcus spp. - Lb. sakei group members were predicted to have an optimal effect considering the increase in S. cerevisiae growth abilities and overall CO2 secretion rates. Flux Balance Analysis (FBA) revealed mutual relationships between the Pediococcus spp. - Lb. sakei group members and S. cerevisiae through bidirectional nutrient dependencies, and further underlined that these bacteria compete with the yeast over nutrients to a lesser extent than the rest LAB species. Volatile compounds (VOCs) production was further modeled, identifying species-specific and community-related VOCs production profiles. The in-silico models' predictions were validated by experimentally building synthetic sourdough communities and assessing the fermentation phenotypes. The Pediococcus spp. - Lb. sakei group was indeed associated with increased yeast cell counts and fermentation rates, demonstrating a 25 % increase in the average leavening rates during the first 10 fermentation hours compared to communities with a lower representation of these group members. Overall, these results provide a possible novel strategy towards the de-novo design of sourdough starter communities with tailored-made characterizations, including a shortened leavening period.
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Affiliation(s)
- Omer Sabach
- Faculty of Biotechnology and Food Engineering, Technion, Haifa, Israel
| | | | - Inbar Kesten
- Faculty of Biotechnology and Food Engineering, Technion, Haifa, Israel
| | - Shay Freilich
- Faculty of Biotechnology and Food Engineering, Technion, Haifa, Israel
| | - Shiri Freilich
- Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Yechezkel Kashi
- Faculty of Biotechnology and Food Engineering, Technion, Haifa, Israel.
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McKenney EA, Nichols LM, Alvarado S, Hardy S, Kemp K, Polmanteer R, Shoemaker A, Dunn RR. Sourdough starters exhibit similar succession patterns but develop flour-specific climax communities. PeerJ 2023; 11:e16163. [PMID: 37810791 PMCID: PMC10559884 DOI: 10.7717/peerj.16163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/01/2023] [Indexed: 10/10/2023] Open
Abstract
The microbial fermentation behind sourdough bread is among our oldest technologies, yet there are many opportunities for sourdough science to learn from traditional bakers. We analyzed 16S rRNA sequences in R to assess the bacterial community structure and performance of 40 starters grown from 10 types of flour over 14 days, and identified six distinct stages of succession. At each stage, bacterial taxa correlate with determinants of bread quality including pH, rise, and aromatic profile. Day 1 starter cultures were dominated by microorganisms commonly associated with plants and flour, and by aromas similar to toasted grain/cereal. Bacterial diversity peaked from days 2-6 as taxa shifted from opportunistic/generalist bacteria associated with flour inputs, toward specialized climax bacterial communities (days 10-14) characterized by acid-tolerant taxa and fruity (p < 3.03e-03), sour (p < 1.60e-01), and fermented (p < 1.47e-05) aromas. This collection of traits changes predictably through time, regardless of flour type, highlighting patterns of bacterial constraints and dynamics that are conserved across systems and scales. Yet, while sourdough climax communities exhibit similar markers of maturity (i.e., pH ≤ 4 and enriched in Lactobacillus (mean abundance 48.1%), Pediococcus (mean abundance 22.7%), and/or Gluconobacter (mean abundance 19.1%)), we also detected specific taxa and aromas associated with each type of flour. Our results address important ecological questions about the relationship between community structure and starter performance, and may enable bakers to deliberately select for specific sourdough starter and bread characteristics.
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Affiliation(s)
- Erin A. McKenney
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, United States
- North Carolina Museum of Natural Sciences, Raleigh, North Carolina, United States
| | - Lauren M. Nichols
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, United States
| | - Samuel Alvarado
- Department of Biology, University of West Florida, Pensacola, Florida, United States
- Biotechnology Program, North Carolina State University, Biotechnology-based Sequencing-based Undergraduate Research Experience (BITSURE), Raleigh, North Carolina, United States
| | - Shannon Hardy
- The Exploris School, Raleigh, North Carolina, United States
| | - Kristen Kemp
- Moore Square Middle School, Raleigh, North Carolina, United States
| | | | | | - Robert R. Dunn
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, United States
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Plessas S, Mantzourani I, Alexopoulos A, Alexandri M, Kopsahelis N, Adamopoulou V, Bekatorou A. Nutritional Improvements of Sourdough Breads Made with Freeze-Dried Functional Adjuncts Based on Probiotic Lactiplantibacillus plantarum subsp. plantarum and Pomegranate Juice. Antioxidants (Basel) 2023; 12:antiox12051113. [PMID: 37237979 DOI: 10.3390/antiox12051113] [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: 04/26/2023] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
New types of sourdough breads are proposed, made with freeze-dried sourdough adjuncts based on: (i) Lactiplantibacillus plantarum subsp. plantarum ATCC 14917, a potential probiotic (LP) alone or (ii) with the addition of unfermented pomegranate juice (LPPO) and (iii) pomegranate juice fermented by the same strain (POLP). Physicochemical, microbiological, and nutritional characteristics (in vitro antioxidant capacity, AC, total phenolics, TPC, and phytate content) of the breads were evaluated and compared with commercial sourdough bread. All adjuncts performed well; the best results being those obtained by POLP. Specifically, the highest acidity (9.95 mL of 0.1 M NaOH) and organic acid content (3.02 and 0.95 g/kg, lactic and acetic acid, respectively) as well as better resistance to mold and rope spoilage (12 and 13 days, respectively) were observed for POLP3 bread (sourdough with 6% POLP). Significant nutritional improvements were observed by all adjuncts, in terms of TPC, AC, and phytate reduction (103 mg gallic acid/100 g, 232 mg Trolox/100 g, and 90.2%, respectively, for POLP3). In all cases, the higher the amount of adjunct, the better the results. Finally, the good sensory properties of the products indicate the suitability of the proposed adjuncts for sourdough breadmaking, while their application in freeze-dried, powdered form can facilitate commercial application.
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Affiliation(s)
- Stavros Plessas
- Laboratory of Food Processing, Department of Agriculture Development, Democritus University of Thrace, 68200 Orestiada, Greece
| | - Ioanna Mantzourani
- Laboratory of Food Processing, Department of Agriculture Development, Democritus University of Thrace, 68200 Orestiada, Greece
| | - Athanasios Alexopoulos
- Laboratory of Food Biotechnology, Microbiology and Hygiene, Department of Agriculture Development, Democritus University of Thrace, 68200 Orestiada, Greece
| | - Maria Alexandri
- Department of Food Science and Technology, Ionian University, 28100 Argostoli, Greece
| | - Nikolaos Kopsahelis
- Department of Food Science and Technology, Ionian University, 28100 Argostoli, Greece
| | | | - Argyro Bekatorou
- Department of Chemistry, University of Patras, 26504 Patras, Greece
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6
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Baev V, Apostolova E, Gotcheva V, Koprinarova M, Papageorgiou M, Rocha JM, Yahubyan G, Angelov A. 16S-rRNA-Based Metagenomic Profiling of the Bacterial Communities in Traditional Bulgarian Sourdoughs. Microorganisms 2023; 11:microorganisms11030803. [PMID: 36985376 PMCID: PMC10058899 DOI: 10.3390/microorganisms11030803] [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: 01/30/2023] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Sourdoughs (SDs) are spontaneously formed microbial ecosystems composed of various species of lactic acid bacteria (LAB) and acid-tolerant yeasts in food matrices of cereal flours mixed with water. To date, more than 90 LAB species have been isolated, significantly impacting the organoleptic characteristics, shelf life, and health properties of bakery products. To learn more about the unique bacterial communities involved in creating regional Bulgarian sourdoughs, we examined the metacommunities of five sourdoughs produced by spontaneous fermentation and maintained by backslopping in bakeries from three geographic locations. The 16S rRNA gene amplicon sequencing showed that the former genus Lactobacillus was predominant in the studied sourdoughs (51.0-78.9%). Weissella (0.9-42.8%), Herbaspirillum (1.6-3.8%), Serratia (0.1-11.7%), Pediococcus (0.2-7.5%), Bacteroides (0.1-1.3%), and Sphingomonas (0.1-0.5%) were also found in all 5 samples. Genera Leuconostoc, Enterococcus, Bacillus, and Asaia were sample-specific. It is interesting to note that the genus Weissella was more abundant in wholegrain samples. The greatest diversity at the species level was found in the former genus Lactobacillus, presented in the sourdough samples with 13 species. The UPGMA cluster analysis clearly demonstrated similarity in species' relative abundance between samples from the same location. In addition, we can conclude that the presence of two main clusters-one including samples from mountainous places (the cities of Smolyan and Bansko) and the other including samples from the city of Ruse (the banks of the Danube River)-may indicate the impact of climate and geographic location (e.g., terrain, elevation, land use, and nearby water bodies and their streams) on the abundance of microbiome taxa. As the bacterial population is crucial for bread standardization, we expect the local bakery sector to be interested in the relationship between process variables and their effect on bacterial dynamics described in this research study.
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Affiliation(s)
- Vesselin Baev
- Faculty of Biology, University of Plovdiv, Tzar Assen 24, 4000 Plovdiv, Bulgaria
| | - Elena Apostolova
- Faculty of Biology, University of Plovdiv, Tzar Assen 24, 4000 Plovdiv, Bulgaria
| | - Velitchka Gotcheva
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria
| | - Miglena Koprinarova
- Institute of Molecular Biology "Acad. Roumen Tsanev", Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
- Department of Catering and Nutrition, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria
| | - Maria Papageorgiou
- Department of Food Science and Technology, International Hellenic University, P.O. Box 141, 57400 Thessaloniki, Greece
| | - João Miguel Rocha
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Galina Yahubyan
- Faculty of Biology, University of Plovdiv, Tzar Assen 24, 4000 Plovdiv, Bulgaria
| | - Angel Angelov
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria
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Șerban LR, Păucean A, Chiș MS, Pop CR, Man SM, Pușcaș A, Ranga F, Socaci SA, Alexa E, Berbecea A, Semeniuc CA, Mureșan V. Metabolic Profile of Einkorn, Spelt, Emmer Ancient Wheat Species Sourdough Fermented with Strain of Lactiplantibacillus plantarum ATCC 8014. Foods 2023; 12:foods12051096. [PMID: 36900613 PMCID: PMC10001257 DOI: 10.3390/foods12051096] [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: 02/15/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
The continuous development of bakery products as well as the increased demands from consumers transform ancient grains into alternatives with high nutritional potential for modern wheat species. The present study, therefore, follows the changes that occur in the sourdough obtained from these vegetable matrices fermented by Lactiplantibacillus plantarum ATCC 8014 during a 24 h. period. The samples were analyzed in terms of cell growth dynamics, carbohydrate content, crude cellulose, minerals, organic acids, volatile compounds, and rheological properties. The results revealed significant microbial growth in all samples, with an average value of 9 log cfu/g but also a high accumulation of organic acids with the increase in the fermentation period. Lactic acid content ranged from 2.89 to 6.65 mg/g, while acetic acid recorded values between 0.51 and 1.1 mg/g. Regarding the content of simple sugars, maltose was converted into glucose, and fructose was used as an electron acceptor or carbon source. Cellulose content decreased as a result of the solubilization of soluble fibers into insoluble fibers under enzymatic action, with percentages of 3.8 to 9.5%. All sourdough samples had a high content of minerals; the highest of which-Ca (246 mg/kg), Zn (36 mg/kg), Mn (46 mg/kg), and Fe (19 mg/kg)-were recorded in the einkorn sourdough.
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Affiliation(s)
- Larisa Rebeca Șerban
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Adriana Păucean
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
- Correspondence:
| | - Maria Simona Chiș
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Carmen Rodica Pop
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5, Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Simona Maria Man
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Andreea Pușcaș
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Floricuța Ranga
- Faculty of Food Science and Technology, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Sonia Ancuța Socaci
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5, Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Ersilia Alexa
- Department of Food Control, Faculty of Agro-Food Technologies, University of Life Sciences “King Michael I of Romania”, 119 Aradului Avenue, 300641 Timişoara, Romania
| | - Adina Berbecea
- Department of Soil Sciences, Faculty of Agriculture, University of Life Sciences “King Michael I of Romania”, 119 Aradului Avenue, 300641 Timişoara, Romania
| | - Cristina Anamaria Semeniuc
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
| | - Vlad Mureșan
- Department of Food Engineering, Faculty of Food Sciences and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Mănăștur Street, 400372 Cluj-Napoca, Romania
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8
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Albagli G, Finotelli PV, Ferreira TF, Amaral PFF. Toward Sourdough Microbiome Data: A Review of Science and Patents. Foods 2023; 12:foods12020420. [PMID: 36673512 PMCID: PMC9858420 DOI: 10.3390/foods12020420] [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: 12/05/2022] [Revised: 12/24/2022] [Accepted: 01/05/2023] [Indexed: 01/18/2023] Open
Abstract
Technological prospecting was performed on documents related to sourdough microbiota using SCOPUS, Web of Science, Google Scholar, Espacenet and Patent Inspiration databases. Scientific articles and patents were analyzed based on three different perspectives: macro (year of publication, country, and institutions), meso (categorization as different taxonomies according to the subject evaluated), and micro (in-depth analysis of the main taxonomies, gathering the documents in subcategories). The main subject addressed in patents was the starter and product preparation, while 58.8% of the scientific publications focused on sourdough starter microbiota (identification and selection of microorganisms). Most patents were granted to companies (45.9%), followed by independent inventors (26.4%) and universities (21.8%). Sourdough products are in the spotlight when the subject is the bakery market; however, a closer integration between academia and industry is needed. Such a collaboration could generate a positive impact on the sourdough market in terms of innovation, providing a bread with a better nutritional and sensory quality for all consumers. Moreover, sourdough creates a new magnitude of flavor and texture in gastronomy, providing new functional products or increasing the quality of traditional ones.
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Affiliation(s)
- Gabriel Albagli
- Programa de Pós-Graduação em Ciências de Alimentos (PPGCAL), Instituto de Química, Univrisdade Federal do Rio de Janeiro, da Silveira Ramos, 149, CT, Bl. A, Ilha do Fundão, Rio de Janeiro 21941-909, RJ, Brazil
| | - Priscilla V. Finotelli
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro21941-170, RJ, Brazil
| | - Tatiana Felix Ferreira
- Escola de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 149, CT, Bl. E, Ilha do Fundão, Rio de Janeiro21941-909, RJ, Brazil
| | - Priscilla F. F. Amaral
- Programa de Pós-Graduação em Ciências de Alimentos (PPGCAL), Instituto de Química, Univrisdade Federal do Rio de Janeiro, da Silveira Ramos, 149, CT, Bl. A, Ilha do Fundão, Rio de Janeiro 21941-909, RJ, Brazil
- Escola de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 149, CT, Bl. E, Ilha do Fundão, Rio de Janeiro21941-909, RJ, Brazil
- Correspondence:
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9
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Hernández-Parada N, González-Ríos O, Suárez-Quiroz ML, Hernández-Estrada ZJ, Figueroa-Hernández CY, Figueroa-Cárdenas JDD, Rayas-Duarte P, Figueroa-Espinoza MC. Exploiting the Native Microorganisms from Different Food Matrices to Formulate Starter Cultures for Sourdough Bread Production. Microorganisms 2022; 11:microorganisms11010109. [PMID: 36677402 PMCID: PMC9865925 DOI: 10.3390/microorganisms11010109] [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: 11/15/2022] [Revised: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
The use of sourdough for bread production involves fermentation, which is dominated by lactic acid bacteria (LAB) and yeast. Sourdough can be inoculated with a starter culture or through a food matrix containing microorganisms to initiate sourdough fermentation. Sourdough is used as leavening agent for bread making, and metabolites produced by LAB and yeast confer a specific aroma and flavor profile to bread, thus improving its sensory attributes. However, few publications report the effect of microorganisms from different food products and by-products on sourdough fermentation. This review focuses on using different starter cultures from various food sources, from wheat flour to starter cultures. Additionally, included are the types of sourdough, the sourdough fermentation process, and the biochemical transformations that take place during the sourdough fermentation process.
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Affiliation(s)
- Natali Hernández-Parada
- Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, M.A. de Quevedo 2779, Col. Formando Hogar, Veracruz C.P. 91897, Mexico
| | - Oscar González-Ríos
- Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, M.A. de Quevedo 2779, Col. Formando Hogar, Veracruz C.P. 91897, Mexico
| | - Mirna Leonor Suárez-Quiroz
- Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, M.A. de Quevedo 2779, Col. Formando Hogar, Veracruz C.P. 91897, Mexico
| | - Zorba Josué Hernández-Estrada
- Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, M.A. de Quevedo 2779, Col. Formando Hogar, Veracruz C.P. 91897, Mexico
| | - Claudia Yuritzi Figueroa-Hernández
- CONACYT-Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, Unidad de Investigación y Desarrollo en Alimentos, M.A. de Quevedo 2779, Veracruz C.P. 91897, Mexico
| | - Juan de Dios Figueroa-Cárdenas
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV Unidad Querétaro), Libramiento Norponiente 2000, Fracc. Real de Juriquilla, Querétaro C.P. 76230, Mexico
| | - Patricia Rayas-Duarte
- Robert M. Kerr Food & Agricultural Products Center, Oklahoma State University, 123 FAPC, Stillwater, OK 74078-6055, USA
- Correspondence: (P.R.-D.); (M.C.F.-E.)
| | - María Cruz Figueroa-Espinoza
- Qualisud, Univ Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de la Réunion, F-34398 Montpellier, France
- Correspondence: (P.R.-D.); (M.C.F.-E.)
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10
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Costa LFX, Kothe CI, Grassotti TT, Garske RP, Sandoval BN, Varela APM, Prichula J, Frazzon J, Mann MB, Thys RCS, Frazzon APG. Evolution of the spontaneous sourdoughs microbiota prepared with organic or conventional whole wheat flours from South Brazil. AN ACAD BRAS CIENC 2022; 94:e20220091. [PMID: 36541979 DOI: 10.1590/0001-3765202220220091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 05/14/2022] [Indexed: 12/23/2022] Open
Abstract
The purpose of this study was to compare the composition and stability of bacteria and fungi communities during the propagation of sourdoughs prepared with organic or conventional whole wheat (Triticum aestivum) flours from South Brazil. Sourdoughs were prepared and samples were collected during different fermentation times (0 to 216 h). Total DNA of sourdough samples were extracted and the 16S rRNA gene and Internal Transcribed Spacer region were sequenced by MiSeq-Illumina. A total of 43 and 56 OTUs were identified and defined as core taxa in the bacterial and fungal communities, respectively. The analysis revealed increases in the relative abundances of the lactic acid (Pediococcus pentosaceus, Weissella hellenica and Limosilactobacillus pontis) and acetic acid bacteria (Gluconobacter frateurii and Acetobacter tropicalis) during the sourdough propagation. The filaments fungi, Alternaria tenuissima, Fusarium culmorum, Fusarium petersiae and Microdochium seminicola remained more stable in organic than conventional during propagation cycles. After 216 h of fermentation, both sourdoughs were dominated by acid- and salt-tolerant yeast Issatchenkia orientalis (syn Pichia kudriavzevii, and Candida glycerinogenes). In conclusion, there were no significant differences in microbial communities among the sourdough samples. This study revealed that both flours contain autochthonous LAB, AAB, and yeasts with biotechnological applications in sourdough bread-making.
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Affiliation(s)
- Letícia F X Costa
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Instituto de Ciências Básicas da Saúde, Departamento de Microbiologia, Imunologia e Parasitologia, Rua Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Caroline Isabel Kothe
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350 Jouy-en-Josas, France
| | - Tiela T Grassotti
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Instituto de Ciências Básicas da Saúde, Departamento de Microbiologia, Imunologia e Parasitologia, Rua Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Raquel P Garske
- Universidade Federal do Rio Grande do Sul, Instituto de Ciência e Tecnologia de Alimentos, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Beatriz N Sandoval
- Universidade Federal do Rio Grande do Sul, Instituto de Ciência e Tecnologia de Alimentos, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Ana Paula M Varela
- Universidade Federal de Ciências da Saúde de Porto Alegre, Departamento de Ciências da Saúde Básicas, Rua Sarmento Leite, 245, 90050-170 Porto Alegre, RS, Brazil
| | - Janira Prichula
- Universidade Federal de Ciências da Saúde de Porto Alegre, Departamento de Ciências da Saúde Básicas, Rua Sarmento Leite, 245, 90050-170 Porto Alegre, RS, Brazil
| | - Jeverson Frazzon
- Universidade Federal do Rio Grande do Sul, Instituto de Ciência e Tecnologia de Alimentos, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Michele B Mann
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Instituto de Ciências Básicas da Saúde, Departamento de Microbiologia, Imunologia e Parasitologia, Rua Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Roberta C S Thys
- Universidade Federal do Rio Grande do Sul, Instituto de Ciência e Tecnologia de Alimentos, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Ana Paula G Frazzon
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Instituto de Ciências Básicas da Saúde, Departamento de Microbiologia, Imunologia e Parasitologia, Rua Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
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11
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Hellin P, Escarnot E, Mingeot D, Gofflot S, Sinnaeve G, Lateur M, Godin B. Multiyear evaluation of the agronomical and technological properties of a panel of spelt varieties under different cropping environments. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2022.103615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Quality Characteristics of Novel Sourdough Breads Made with Functional Lacticaseibacillus paracasei SP5 and Prebiotic Food Matrices. Foods 2022; 11:3226. [PMCID: PMC9601700 DOI: 10.3390/foods11203226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Lacticaseibacillus paracasei SP5, isolated from kefir, was assessed as a starter culture for sourdough bread making in freeze-dried form, both free (BSP5 bread) and immobilised on wheat bran (BIWB) and on a traditional flour/sour milk food, ‘trahanas’ (BITR). Physicochemical characteristics, shelf-life, volatilome, phytic acid, and sensory properties of the breads were evaluated. The BITR breads had higher acidity (9.05 ± 0.14 mL of 0.1 M NaOH/10 g) and organic acid content (g/Kg; 2.90 ± 0.05 lactic, 1.04 ± 0.02 acetic), which justifies the better resistance against mould and rope spoilage (>10 days). The highest number of volatiles (35) and at higher concentration (11.14 μg/g) were also found in BITR, which is in line with the sensory (consumer) evaluation regarding flavour. Finally, higher reduction of phytate (an antinutrient) was observed in all L. paracasei SP5 sourdoughs (83.3–90.7%) compared to the control samples (71.4%). The results support the use of the new strain for good quality sourdough bread.
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13
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von Gastrow L, Michel E, Legrand J, Amelot R, Segond D, Guezenec S, Rué O, Chable V, Goldringer I, Dousset X, Serpolay-Bessoni E, Taupier-Letage B, Vindras-Fouillet C, Onno B, Valence F, Sicard D. Microbial community dispersal from wheat grains to sourdoughs : a contribution of participatory research. Mol Ecol 2022; 32:2413-2427. [PMID: 35892285 DOI: 10.1111/mec.16630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 07/11/2022] [Indexed: 11/30/2022]
Abstract
Understanding microbial dispersal is critical to understand the dynamics and evolution of microbial communities. However, microbial dispersal is difficult to study because of uncertainty about their vectors of migration. This applies to both microbial communities in natural and human-associated environments. Here, we studied microbial dispersal along the sourdoughs bread making chain using a participatory research approach. Sourdough is a naturally fermented mixture of flour and water. It hosts a community of bacteria and yeasts whose origins are only partially known. We analysed the potential of wheat grains and flour to serve as an inoculum for sourdough microbial communities using 16S rDNA and ITS1 metabarcoding. First, in an experiment involving farmers, a miller and bakers, we followed the microbiota from grains to newly initiated and propagated sourdoughs. Second, we compared the microbiota of 46 sourdough samples collected everywhere in France, and of the flour used for their backslopping. The core microbiota detected on the seeds, in the flour and in the sourdough was composed mainly of microbes known to be associated with plants and not living in sourdoughs. No sourdough yeast species were detected on grains and flours. Sourdough lactic acid bacteria were rarely found in flour. When they were, they did not have the same amplicon sequence variant (ASV) as found in the corresponding sourdough. However, the low sequencing depth for bacteria in flour did not allow us to draw definitive conclusion. Thus, our results showed that sourdough yeasts did not come from flour, and suggest that neither do sourdough LAB.
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Affiliation(s)
- Lucas von Gastrow
- SPO, INRAE, Montpellier SupAgro, Montpellier, France.,STLO, INRAE, Institut Agro, Rennes Cedex, France
| | - Elisa Michel
- SPO, INRAE, Montpellier SupAgro, Montpellier, France.,Oniris, Laboratoire MicrobioTech, UMR GEPEA 6144, Rue de la Géraudière CS 82225, Nantes Cedex 3, France
| | - Judith Legrand
- Génétique Quantitative et Evolution le Moulon, Université Paris-Sud, INRAE, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Rémy Amelot
- SPO, INRAE, Montpellier SupAgro, Montpellier, France
| | - Diego Segond
- SPO, INRAE, Montpellier SupAgro, Montpellier, France
| | | | - Olivier Rué
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas, France.,Université Paris-Saclay, INRAE, BioinfOmics, MIGALE bioinformatics facility, Jouy-en-Josas, France
| | | | - Isabelle Goldringer
- Génétique Quantitative et Evolution le Moulon, Université Paris-Sud, INRAE, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Xavier Dousset
- Oniris, Laboratoire MicrobioTech, UMR GEPEA 6144, Rue de la Géraudière CS 82225, Nantes Cedex 3, France
| | | | - Bruno Taupier-Letage
- Institut Technique de l'agriculture et de l'Alimentation Biologique, Paris, France
| | | | - Bernard Onno
- Oniris, Laboratoire MicrobioTech, UMR GEPEA 6144, Rue de la Géraudière CS 82225, Nantes Cedex 3, France
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14
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Impact of Leavening Agent and Wheat Variety on Bread Organoleptic and Nutritional Quality. Microorganisms 2022; 10:microorganisms10071416. [PMID: 35889135 PMCID: PMC9317705 DOI: 10.3390/microorganisms10071416] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/29/2022] [Accepted: 07/08/2022] [Indexed: 02/06/2023] Open
Abstract
Leavened bread can be made with different wheat varieties and leavening agents. Several studies have now demonstrated that each of these factors can play a role in bread quality. However, their relative impact in artisanal bread making remains to be elucidated. Here, we assessed the impact of two wheat varieties as well as the impact of sourdoughs and yeasts on multiple components of bread organoleptic and nutritional quality. Using a participatory research approach including scientists and bakers, we compared breads leavened with three different sourdoughs and three different commercial yeasts as well as a mix of sourdough and yeast. Breads were made from two wheat varieties commonly used in organic farming: the variety “Renan” and the landrace “Barbu”. Except for bread minerals contents that mostly depended on wheat variety, bread quality was mostly driven by the fermenting agent. Sourdough breads had lower sugar and organic acids contents. These differences were mostly attributable to lower amounts of maltose and malate. They also had a higher proportion of soluble proteins than yeast breads, with specific aroma profiles. Finally, their aroma profiles were specific and more diverse compared to yeast breads. Interestingly, we also found significant nutritional and organoleptic quality differences between sourdough breads. These results highlight the value of sourdough bread and the role of sourdough microbial diversity in bread nutritional and organoleptic quality.
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15
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Muthappa DM, Lamba S, Sivasankaran SK, Naithani A, Rogers N, Srikumar S, Macori G, Scannell AGM, Fanning S. 16S rRNA Based Profiling of Bacterial Communities Colonizing Bakery-Production Environments. Foodborne Pathog Dis 2022; 19:485-494. [PMID: 35759425 DOI: 10.1089/fpd.2022.0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Conventional culture-based techniques are largely inadequate in elucidating the microbiota contained in an environment, due to low recovery within a complex bacterial community. This limitation has been mitigated by the use of next-generation sequencing (NGS)-based approaches thereby facilitating the identification and classification of both culturable and uncultivable microorganisms. Amplicon targeted NGS methods, such as 16S ribosomal RNA (16S rRNA) and shotgun metagenomics, are increasingly being applied in various settings such as in food production environments to decipher the microbial consortium therein. Even though multiple food matrices/food production environments have been studied, the low-moisture environment associated with bakery food production remains to be investigated. To address this knowledge gap, in this study, we investigated the microbiome associated with two bakery production sites (designated as A and B) located in Ireland using 16S rRNA-amplicon-based sequencing. Amplicons corresponding to a hypervariable region contained within the 16S rRNA gene were amplified from DNA samples purified from environmental swabs and ingredients collected at both sites at various stages (preparation, production, postproduction, and storage) across the bakery production chain, over three seasons (winter, spring, and summer). These amplicons were sequenced, and data were analyzed using the mothur pipeline and visualized using MicrobiomeAnalyst and a series of R packages. The top seven bacterial phyla identified at both sites were composed of Proteobacteria, Firmicutes, Actinobacteria, Bacteroidetes, Deinococcus-Thermus, Patescibacteria, and Verrucomicrobia. In addition, the phyla Tenericutes (Mycoplasmatota) and Acidobacteria were observed only in samples taken at site B. Different bacterial compositions were identified at each stage of production. These same bacteria were also found to be present in the final processed food suggesting the influence of the environment on the food matrix. This study is the first demonstration of the utility of 16S rRNA amplicon-based sequencing to describe the microbiota associated with bakery processing environments.
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Affiliation(s)
- Dechamma Mundanda Muthappa
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | - Sakshi Lamba
- Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | | | - Ankita Naithani
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | | | - Shabarinath Srikumar
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland.,Department of Food, Nutrition, and Health, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Guerrino Macori
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | - Amalia G M Scannell
- Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Séamus Fanning
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland.,Institute for Global Food Security, Queen's University Belfast, Belfast, United Kingdom
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16
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Boyaci Gunduz CP, Agirman B, Gaglio R, Franciosi E, Francesca N, Settanni L, Erten H. Evaluation of the variations in chemical and microbiological properties of the sourdoughs produced with selected lactic acid bacteria strains during fermentation. Food Chem X 2022; 14:100357. [PMID: 35693452 PMCID: PMC9178471 DOI: 10.1016/j.fochx.2022.100357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 05/18/2022] [Accepted: 06/01/2022] [Indexed: 11/28/2022] Open
Abstract
Chemical, microbiological and VOCs profile showed the relevance of starter addition. MiSeq Illumina confirmed that Lactobacillus spp. constituted the major LAB group. Fructilactobacillus sanfranciscensis was the most isolated LAB species. Rapid acidifying LAB strains should be preferred for sourdough production. Number of VOCs increased in sourdoughs produced with starter culture.
This research aimed to analyze variations in chemical properties, microbiological characteristics and generated volatile organic compounds (VOCs) profile during sourdough fermentation. Sourdoughs were collected from different cities in Turkey at two different times and lactic acid bacteria (LAB) in the samples were identified with culture-independent and culture-dependent molecular methods. According to culture-dependent methodology, thirteen LAB species were identified. Lactobacillus spp. were identified as the major group according to MiSeq Illumina analysis. Technological potential of commonly isolated LAB species was evaluated. Due to high frequency of isolation, Fructilactobacillus sanfranciscensis and Lactiplantibacillus plantarum strains were better investigated for their technological traits useful in sourdough production. Experimental sourdoughs were produced with mono- and dual-culture of the selected strains and chemical properties and microbiological characteristics, as well as VOCs profile of the sourdoughs, were subjected to multivariate analysis which showed the relevance of added starter, in terms of acidification and VOCs profile.
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By-Product Revalorization: Cava Lees Can Improve the Fermentation Process and Change the Volatile Profile of Bread. Foods 2022; 11:foods11091361. [PMID: 35564084 PMCID: PMC9099486 DOI: 10.3390/foods11091361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Abstract
Wine lees are a by-product that represents a 25% of the total winery waste. Although lees are rich in antioxidant compounds and dietary fiber, they have no added value and are considered a residue. The aim of this study was to evaluate the effect of Cava lees (0 and 5% w/w) on microbial populations during sourdough and bread fermentation and the volatile fraction of the final bread. The results showed that 5% Cava lees promoted the growth of both lactic acid bacteria (LAB) and yeast in short fermentations (bread) but did not improve microbial growth in long fermentations (sourdough). Regarding volatile compounds, the addition of Cava lees increased the concentration of volatiles typically found in those products. Also, some compounds reported in sparkling wines were also identified in samples with Cava lees adsorbed on their surface. To sum up, the addition of Cava lees to sourdough and, especially, bread formulation may be a new strategy to revalorize such by-product.
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18
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Phetxumphou K, Vick R, Blanc L, Lahne J. Processing Condition Effects on Sensory Profiles of Kombucha through Sensory Descriptive Analysis. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2022. [DOI: 10.1080/03610470.2021.2022879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Rebecca Vick
- Department of Food Science & Technology, Virginia Tech, Blacksburg, VA, U.S.A
| | - Lori Blanc
- Department of Food Science & Technology, Virginia Tech, Blacksburg, VA, U.S.A
| | - Jacob Lahne
- Department of Food Science & Technology, Virginia Tech, Blacksburg, VA, U.S.A
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19
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Improvement of Texture, Nutritional Qualities, and Consumers’ Perceptions of Sorghum-Based Sourdough Bread Made with Pediococcus pentosaceus and Weissella confusa Strains. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8010032] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Enriched gluten-free products are in high demand owing to increasing celiac disease worldwide. Sourdough fermentation can improve the quality of gluten-free cereals, rendering the resulting product beneficial as a functional food. This study produced sorghum bread (SB) using sourdough technology and evaluated the texture, nutrition profile, bioactive components, and sensory attributes of the product. The base formula was composed of sorghum flour and corn starch. Sourdough made with Pediococcus pentosaceus LD7 (PL7), P. pentosaceus SA8 (PS8), or Weissella confusa SD8 (WS8) was added at a 20% substitution level for bread production, while bread without sourdough addition was used as the control sample. The texture profiles of the SB were significantly (p ˂ 0.05) softer than that of the control. The sourdough breads possessed higher crude protein, ash, and dietary fibre contents than the control bread. Tannin and total phenol contents were significantly (p ˂ 0.05) higher in the sourdough breads compared to the control sample. The specific volume of the sample made with PS8 sourdough was the highest at 2.50 cm3/g compared to the other samples (2.17–2.46 cm3/g). The sourdough samples had higher scores for taste, texture, aroma, and overall acceptability than the control, with PL7 SB exhibiting the best overall acceptability (6.56). This study established promising use of sourdough with starters as an ingredient for baked products with improved technological and nutritional attributes as well as consumer acceptability.
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20
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Ancient Wheat Species: Biochemical Profile and Impact on Sourdough Bread Characteristics—A Review. Processes (Basel) 2021. [DOI: 10.3390/pr9112008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
In recent years, the attention of farmers, bakers and consumers towards ancient wheat species has been increasing. Low demands of pedo-climatic growth factors, the suitability for organic cultivation along with their high nutritional quality and their content in pro-health compounds make them extremely attractive for bakers and modern consumers, equally. On the other hand, in recent years, sourdough has gained attention due to its ability to produce new functionally active molecules with higher bioaccessibility and thus to produce bread with enhanced nutritional quality. This paper highlights the relevant nutritional profile of einkorn, spelt, emmer and Khorasan which could lead to bread with improved textural, sensorial, microbial and nutritional characteristics through sourdough fermentation. The ancient wheat species could be used as promising substitutes for common wheat flour for the design of innovative types of bread, even for special needs.
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21
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Dunn RR, Wilson J, Nichols LM, Gavin MC. Toward a Global Ecology of Fermented Foods. CURRENT ANTHROPOLOGY 2021. [DOI: 10.1086/716014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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