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Aktepe Y, Aydın F, Bozoğlu T, Özer G, Çakır İ. Molecular characterization and multifunctional evaluation of lactic acid bacteria isolated from traditional sourdough. Int J Food Microbiol 2024; 423:110845. [PMID: 39079449 DOI: 10.1016/j.ijfoodmicro.2024.110845] [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: 04/30/2024] [Revised: 07/11/2024] [Accepted: 07/24/2024] [Indexed: 08/18/2024]
Abstract
The primary objective of this study was to characterize lactic acid bacteria (LAB) strains derived from sourdough for possible utilization as functional starters to produce sourdough and various cereal-based fermented foods. A total of 350 autochthonous LAB strains were isolated from 65 Type I sourdough samples and characterized using six random amplified polymorphic DNA (RAPD) primers at intra- and interspecific levels. Species identification of selected strains representing distinct clusters from RAPD analysis was performed based on the 16S rRNA region. The LAB strains were identified as Companilactobacillus crustorum (n = 135), Levilactobacillus brevis (n = 125), Latilactobacillus curvatus (n = 40), Companilactobacillus paralimentarius (n = 32), and Lactiplantibacillus plantarum (n = 18). A total of 66 LAB strains were selected for technological characterization along with two commercial strains. The characterization involved acidity development, EPS production potential, leavening activity, and growth abilities under harsh conditions. Principle component analysis (PCA) identified 2 Lp. plantarum and 14 Lev. brevis strains as the most relevant technologically. Among them, Lp. plantarum L35.1 and Lev. brevis L37.1 were resistant to tetracycline. Evaluation of probiotic characteristics (survival in pH 2.5 and bile presence, auto aggregation capacity, hydrophobic activity, antioxidant activity, antimicrobial activity) by PCA identified four strains with relevance to Lactobacillus rhamnosus GG (LGG), which were further selected for in vitro digestion assays. Lactiplantibacillus plantarum L7.8, Lev. brevis L55.1, and L62.2 demonstrated similar viability indices to LGG, along with increased auto aggregation capacity and antioxidant activity. These strains are promising as candidate starters for producing sourdough and sourdough-related fermented food products.
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Affiliation(s)
- Yeşim Aktepe
- Department of Food Engineering, Faculty of Engineering, Bolu Abant Izzet Baysal University, 14030, Bolu, Türkiye
| | - Furkan Aydın
- Department of Food Engineering, Faculty of Engineering, Aksaray University, 68100, Aksaray, Türkiye
| | - Tuğba Bozoğlu
- Department of Plant Protection, Faculty of Agriculture, Bolu Abant Izzet Baysal University, 14030, Bolu, Türkiye
| | - Göksel Özer
- Department of Plant Protection, Faculty of Agriculture, Bolu Abant Izzet Baysal University, 14030, Bolu, Türkiye
| | - İbrahim Çakır
- Department of Food Engineering, Faculty of Engineering, Bolu Abant Izzet Baysal University, 14030, Bolu, Türkiye.
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Yang H, Lin J, Han X, Bi J, Dong L, Sun J, Shen C, Xu Y. Functional Characterization of Different Fructilactobacillus sanfranciscensis Strains Isolated from Chinese Traditional Sourdoughs. Foods 2024; 13:2670. [PMID: 39272435 PMCID: PMC11393972 DOI: 10.3390/foods13172670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Revised: 08/20/2024] [Accepted: 08/23/2024] [Indexed: 09/15/2024] Open
Abstract
Fructilactobacillus sanfranciscensis, the dominant species of lactic acid bacteria in sourdoughs, impacts the microstructure and flavor of steamed bread through exopolysaccharide production, acidification, proteolysis, and volatile compound generation. The aim of this study is to investigate the phenotypic diversity and technological traits of 28 F. sanfranciscensis strains of different genotypes isolated from Chinese traditional sourdoughs. The results showed that F. sanfranciscensis strains exhibited substantial variation in proteinase and peptidase activities and the amount of acidification and volatiles in fermented sourdoughs. However, we observed no significant differences in exopolysaccharide production among the strains. The strains Sx14 and Ts1 were further chosen for transcriptomics to gain a deep insight into their intraspecies diversity in sourdough fermentation. Significant transcriptome differentiations between these two strains after 12 h fermentation in sourdoughs were revealed. According to the results, the strain Sx14 possessed higher dipeptidase and aminopeptidase activities, galactose utilization, and lactic and acetic acid production abilities, whereas Ts1 showed higher transmembrane transport of substrates and fructose utilization.
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Affiliation(s)
- Huanyi Yang
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Jiaqi Lin
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Xueyuan Han
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Juguo Bi
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Lijia Dong
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Jianqiu Sun
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Chi Shen
- School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China
| | - Ying Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
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3
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Han NR, Yu S, Byun JA, Yun EJ, Cheon S, Song S, Shim S, Choi IG, Lee SH, Kim KH. Evolution-aided improvement of the acid tolerance of Levilactobacillus brevis and its application in sourdough fermentation. Food Res Int 2024; 190:114584. [PMID: 38945604 DOI: 10.1016/j.foodres.2024.114584] [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: 03/19/2024] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 07/02/2024]
Abstract
Levilactobacillus brevis is crucial in food fermentation, particularly in sourdough production. However, the cultivation of L. brevis faces a challenge with accumulation of lactic acid, a major inhibitor. We aimed to increase the acid tolerance of L. brevis, an industrial strain for sourdough fermentation. We used the adaptive laboratory evolution (ALE) to obtain lactic acid tolerant strains. The evolved strain's fermentation and metabolite profiles, alongside sensory evaluation, were compared with the parental strain by using various analytical techniques. The ALE approach increased lactic acid tolerance in the evolved strain showing an increased growth rate by 1.1 and 1.9 times higher than the parental strain at pH 4.1 and 6.5, respectively. Comprehensive analyses demonstrated its potential application in sourdough fermentation, promising reduced downstream costs. The evolved strain, free from genetically modified organisms concerns, has great potential for industrial use by exhibiting enhanced growth in acidic conditions without affecting consumers' bread preferences.
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Affiliation(s)
- Na Ree Han
- Department of Biotechnology, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Sora Yu
- Department of Biotechnology, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Jung A Byun
- Department of Biotechnology, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Eun Ju Yun
- Division of Biotechnology, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Seongwon Cheon
- Research Institute of Food and Biotechnology, SPC Group, Seoul 08826, Republic of Korea
| | - Seongbong Song
- Research Institute of Food and Biotechnology, SPC Group, Seoul 08826, Republic of Korea
| | - Sangmin Shim
- Research Institute of Food and Biotechnology, SPC Group, Seoul 08826, Republic of Korea
| | - In-Geol Choi
- Department of Biotechnology, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Sung-Ho Lee
- Research Institute of Food and Biotechnology, SPC Group, Seoul 08826, Republic of Korea.
| | - Kyoung Heon Kim
- Department of Biotechnology, Graduate School, Korea University, Seoul 02841, Republic of Korea.
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Hernández-Figueroa RH, Mani-López E, Ramírez-Corona N, López-Malo A. Optimizing Lactic Acid Bacteria Proportions in Sourdough to Enhance Antifungal Activity and Quality of Partially and Fully Baked Bread. Foods 2024; 13:2318. [PMID: 39123510 PMCID: PMC11311496 DOI: 10.3390/foods13152318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/19/2024] [Accepted: 07/22/2024] [Indexed: 08/12/2024] Open
Abstract
The organic acids produced by lactic acid bacteria (LAB) during the fermentation of sourdoughs have the ability to reduce the growth of different molds. However, this ability depends on the LAB used. For this reason, in this study, the proportions of different LAB were optimized to obtain aqueous extracts (AEs) from sourdough to reduce fungal growth in vitro, control the acetic acid concentration, and obtain a specific lactic to acetic acid ratio. In addition, the optimized mixtures were used to formulate partially baked bread (PBB) and evaluate the mold growth and bread quality during refrigerated storage. Using a simplex-lattice mixture design, various combinations of Lactiplantibacillus plantarum, Lacticaseibacillus casei, and Lactobacillus acidophilus were evaluated for their ability to produce organic acids and inhibit mold growth. The mixture containing only Lpb. plantarum significantly reduced the growth rates and extended the lag time of Penicillium chrysogenum and P. corylophilum compared with the control. The AEs' pH values ranged from 3.50 to 3.04. Organic acid analysis revealed that using Lpb. plantarum yielded higher acetic acid concentrations than when using mixed LAB. This suggests that LAB-specific interactions significantly influence organic acid production during fermentation. The reduced radial growth rates and extended lag times for both molds compared to the control confirmed the antifungal properties of the AEs from the sourdoughs. Statistical analyses of the mixture design using polynomial models demonstrated a good fit for the analyzed responses. Two optimized LAB mixtures were identified that maximized mold lag time, targeted the desired acetic acid concentration, and balanced the lactic to acetic acid ratio. The addition of sourdough with optimized LAB mixtures to PBB resulted in a longer shelf life (21 days) and adequately maintained product quality characteristics during storage. PBB was subjected to complete baking and sensory evaluation. The overall acceptability was slightly higher in the control without sourdough (7.50), followed by bread formulated with the optimized sourdoughs (ranging from 6.78 to 7.10), but the difference was not statistically significant (p > 0.05). The sensory analysis results indicated that the optimization was used to successfully formulate a sourdough bread with a sensory profile closely resembling that of a nonsupplemented one. The designed LAB mixtures can effectively enhance sourdough bread's antifungal properties and quality, providing a promising approach for extending bread shelf life while maintaining desirable sensory attributes.
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Affiliation(s)
| | | | | | - Aurelio López-Malo
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, San Andrés Cholula 72810, Mexico; (R.H.H.-F.); (E.M.-L.); (N.R.-C.)
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Dan H, Li H, Li C, Fang Z, Hu B, Chen H, Wang C, Chen S, Hui T, Wu W, Zeng Z, Liu Y. Application of sourdough in gluten-free bakery products. Crit Rev Food Sci Nutr 2024:1-21. [PMID: 38783748 DOI: 10.1080/10408398.2024.2356256] [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: 05/25/2024]
Abstract
ABSTRACTSIn recent years, the demand for gluten-free (GF) bakery products has grown rapidly due to the remarkable rising number of celiac patients and the increasing health awareness of GF products. However, GF products generally suffer from defects such as poor sensorial level, low nutritional value, high prices and short shelf life. Sourdough is the important starter culture applied in bakery field, and it has been proven to be ideal for enhancing the overall quality of bakery products. This review aims to systematically reviewed the application of sourdough in GF bakery products and its improvement to GF bakery products in terms of texture, shelf life, nutrition and flavor. Its positive effects derive from the complex metabolic activities of sourdough microorganisms, such as acidification, proteolysis, production of exopolysaccharides (EPS), activation of endogenous enzymes, and production of antibacterial substances. Finally, researchers are encouraged to expand the use of sourdough in GF bakery products to increase the variety of GF products. And the technical and nutritional potential of sourdough should be developed more widely.
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Affiliation(s)
- Hangyan Dan
- College of Food Science, Sichuan Agricultural University, Yaan, China
- Sichuan Yaomazi Food Co., Ltd, Meishan, Sichuan, China
| | - Hongyu Li
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Cheng Li
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Zhengfeng Fang
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Bin Hu
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Hong Chen
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Caixia Wang
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Saiyan Chen
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Teng Hui
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Wenjuan Wu
- College of Science, Sichuan Agricultural University, Yaan, China
| | - Zhen Zeng
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Yuntao Liu
- College of Food Science, Sichuan Agricultural University, Yaan, China
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Product Processing and Nutrition Health (Co-construction by Ministry and Province), Yaan, China
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Atter A, Diaz M, Tano-Debrah K, Parry-Hanson Kunadu A, Mayer MJ, Sayavedra L, Misita C, Amoa-Awua W, Narbad A. The predominant lactic acid bacteria and yeasts involved in the spontaneous fermentation of millet during the production of the traditional porridge Hausa koko in Ghana. BMC Microbiol 2024; 24:163. [PMID: 38745280 PMCID: PMC11092135 DOI: 10.1186/s12866-024-03317-1] [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: 07/21/2023] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
Spontaneous fermentation of cereals like millet involves a diverse population of microbes from various sources, including raw materials, processing equipment, fermenting receptacles, and the environment. Here, we present data on the predominant microbial species and their succession at each stage of the Hausa koko production process from five regions of Ghana. The isolates were enumerated using selective media, purified, and phenotypically characterised. The LAB isolates were further characterised by 16S rRNA Sanger sequencing, typed using (GTG)5 repetitive-PCR, and whole genome sequencing, while 28S rRNA Sanger sequencing was performed for yeast identification. The pH of the millet grains ranged from mean values of 6.02-6.53 to 3.51-3.99 in the final product, depending on the processors. The mean LAB and yeast counts increased during fermentation then fell to final counts of log 2.77-3.95 CFU/g for LAB and log 2.10-2.98 CFU/g for yeast in Hausa koko samples. At the various processing stages, the counts of LAB and yeast revealed significant variations (p < 0.0001). The species of LAB identified in this study were Limosilactobacillus pontis, Pediococcus acidilactici, Limosilactobacillus fermentum, Limosilactobacillus reuteri, Pediococcus pentosaceus, Lacticaseibacillus paracasei, Lactiplantibacillus plantarum, Schleiferilactobacillus harbinensis, and Weissella confusa. The yeasts were Saccharomyces cf. cerevisiae/paradoxus, Saccharomyces cerevisiae, Pichia kudriavzevii, Clavispora lusitaniae and Candida tropicalis. The identification and sequencing of these novel isolates and how they change during the fermentation process will pave the way for future controlled fermentation, safer starter cultures, and identifying optimal stages for starter culture addition or nutritional interventions. These LAB and yeast species are linked to many indigenous African fermented foods, potentially acting as probiotics in some cases. This result serves as the basis for further studies into the technological and probiotic potential of these Hausa koko microorganisms.
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Affiliation(s)
- Amy Atter
- Food Microbiology and Mushroom Research Division, CSIR-Food Research Institute, Accra, Ghana.
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana.
- Food and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK.
| | - Maria Diaz
- Food and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Kwaku Tano-Debrah
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | | | - Melinda J Mayer
- Gut Microbes and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Lizbeth Sayavedra
- Gut Microbes and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Collins Misita
- Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Wisdom Amoa-Awua
- Food Microbiology and Mushroom Research Division, CSIR-Food Research Institute, Accra, Ghana
- Department of Agro-Processing Technology and Food Bio-Sciences, CSIR College of Science and Technology, Accra, Ghana
| | - Arjan Narbad
- Food and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
- Gut Microbes and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
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Dong Y, Ronholm J, Fliss I, Karboune S. Screening of Lactic Acid Bacteria Strains for Potential Sourdough and Bread Applications: Enzyme Expression and Exopolysaccharide Production. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10270-y. [PMID: 38733464 DOI: 10.1007/s12602-024-10270-y] [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] [Accepted: 04/20/2024] [Indexed: 05/13/2024]
Abstract
Twenty-eight strains of lactic acid bacteria (LAB) were characterized for the ability to express enzymes of interest (including protease, xylanase, α-amylase, laccase, and glucose oxidase) as well as the ability to produce exopolysaccharide (EPS). The screening of enzyme capability for all LAB strains proceeded in a progressive 3-stage manner that helps to profile the efficiency of LAB strains in expressing chosen enzymes (Stage 1), highlights the strains with affinity for flour as the substrate (Stage 2), and discerns strains that can adapt well in a simulated starter environment (Stage 3). The theoretical ability of LAB to express these enzymes was also assessed using Basic Local Alignment Search Tool (BLAST) analysis to identify the underlying genes in the whole genome sequence. By consolidating both experimental data and information obtained from BLAST, three LAB strains were deemed optimal in expressing enzymes, namely, Lb. delbrueckii subsp. bulgaricus (RBL 52), Lb. rhamnosus (RBL 102), and Lb. plantarum (ATCC 10241). Meanwhile, EPS-producing capabilities were observed for 10 out of 28 LAB strains, among which, Lactococcus lactis subsp. diacetylactis (RBL 37) had the highest total EPS yield (274.15 mg polysaccharide/L culture) and produced 46.2% polysaccharide with a molecular mass of more than 100 kDa.
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Affiliation(s)
- YiNing Dong
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, QC, Canada
| | - Jennifer Ronholm
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, QC, Canada
| | - Ismail Fliss
- Department of Food Science, Faculty of Agriculture and Food Sciences, Laval University, Quebec City, QC, Canada
| | - Salwa Karboune
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, QC, Canada.
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Zhang Y, Wang D, Zhang Z, Guan H, Zhang Y, Xu D, Xu X, Li D. Improvement on wheat bread quality by in situ produced dextran-A comprehensive review from the viewpoint of starch and gluten. Compr Rev Food Sci Food Saf 2024; 23:e13353. [PMID: 38660747 DOI: 10.1111/1541-4337.13353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/12/2024] [Accepted: 04/03/2024] [Indexed: 04/26/2024]
Abstract
Deterioration of bread quality, characterized by the staling of bread crumb, the softening of bread crust and the loss of aroma, has caused a huge food waste and economic loss, which is a bottleneck restriction to the development of the breadmaking industry. Various bread improvers have been widely used to alleviate the issue. However, it is noteworthy that the sourdough technology has emerged as a pivotal factor in this regard. In sourdough, the metabolic breakdown of carbohydrates, proteins, and lipids leads to the production of exopolysaccharides, organic acids, aroma compounds, or prebiotics, which contributes to the preeminent ability of sourdough to enhance bread attributes. Moreover, sourdough exhibits a "green-label" feature, which satisfies the consumers' increasing demand for additive-free food products. In the past two decades, there has been a significant focus on sourdough with in situ produced dextran due to its exceptional performance. In this review, the behaviors of bread crucial compositions (i.e., starch and gluten) during dough mixing, proofing, baking and bread storing, as well as alterations induced by the acidic environment and the presence of dextran are systemically summarized. From the viewpoint of starch and gluten, results obtained confirm the synergistic amelioration on bread quality by the coadministration of acidity and dextran, and also highlight the central role of acidification. This review contributes to establishing a theoretical foundation for more effectively enhancing the quality of wheat breads through the application of in situ produced dextran.
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Affiliation(s)
- Yao Zhang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, China
- Postdoctoral Research Program of Materials Science and Engineering, School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
- Postdoctoral Programme of Juxiangyuan Health Food (Zhongshan) Co., Ltd., Zhongshan, China
| | - Dongxu Wang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Zhihong Zhang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Huanan Guan
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Yanjie Zhang
- Postdoctoral Programme of Juxiangyuan Health Food (Zhongshan) Co., Ltd., Zhongshan, China
| | - Dan Xu
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Xueming Xu
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Dandan Li
- College of Food Science and Technology, Whole Grain Food Engineering Research Center, Nanjing Agricultural University, Nanjing, China
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Limbad M, Gutierrez Maddox N, Hamid N, Kantono K, Higgins C. Identification of the Microbiota in Coconut Water, Kefir, Coconut Water Kefir and Coconut Water Kefir-Fermented Sourdough Using Culture-Dependent Techniques and Illumina-MiSeq Sequencing. Microorganisms 2024; 12:919. [PMID: 38792748 PMCID: PMC11124093 DOI: 10.3390/microorganisms12050919] [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: 03/24/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
The principal objective of this study was to isolate and identify the microorganisms present in commercial kefir grains, a novel kefir-fermented coconut water (CWK) and a novel coconut water kefir-fermented sourdough using phenotypic identification and Sanger sequencing and examine the microbial diversity of CWK and CWK-fermented sourdough throughout the fermentation process using the MiSeq Illumina sequencing method. The phenotypic characterisation based on morphology identified ten isolates of LAB, five AAB and seven yeasts from kefir (K), CWK and CWK-fermented sourdough (CWKS). The results confirm the presence of the LAB species Limosilactobacillus fermentum, Lactobacillus. plantarum, L. fusant, L. reuteri and L. kunkeei; the AAB species Acetobacter aceti, A. lovaniensis and A. pasteurianus; and the yeast species Candida kefyr, Rhodotorula mucilaginosa, Saccharomyces cerevisiae, C. guilliermondii and C. colliculosa. To the best of our knowledge, the identification of Rhodotorula from kefir is being reported for the first time. This study provides important insights into the relative abundances of the microorganisms in CWKS. A decrease in pH and an increase in the titratable acidity for CWK- and CWK-fermented sourdough corresponded to the increase in D- and L-lactic acid production after 96 h of fermentation. Significant reductions in the pHs of CWK and CWKS were observed between 48 and 96 h of fermentation, indicating that the kefir microorganisms were able to sustain highly acidic environments. There was also increased production of L-lactic acid with fermentation, which was almost twice that of D-lactic acid in CWK.
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Affiliation(s)
- Mansi Limbad
- Department of Food Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand; (N.G.M.); (N.H.); (K.K.); (C.H.)
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Fan L, Liu X, Deng Y, Zheng X. Preparation of Glutamine-Enriched Fermented Feed from Corn Gluten Meal and Its Functionality Evaluation. Foods 2023; 12:4336. [PMID: 38231836 DOI: 10.3390/foods12234336] [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: 10/27/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024] Open
Abstract
China faces a persistent deficiency in feed protein resources. Enhancing the utilization efficiency of indigenous feed protein resources emerges as a viable strategy to alleviate the current deficit in protein feed supply. Corn gluten meal (CGM), characterized by a high proportion of crude protein and glutamine, is predominantly employed in animal feed. Nonetheless, the water-insolubility of CGM protein hampers its protein bioavailability when utilized as feed material. The aim of this study was to augment protein bioavailability, liberate glutamine peptides from CGM, and produce glutamine-enriched CGM fermented feed. We executed a co-fermentation protocol using Bacillus subtilis A5, Lactobacillus 02002, and acid protease to generate the CGM fermented feed. Subsequent in vivo experiments with broilers were conducted to assess the efficacy of the fermented product. The findings revealed that the soluble protein, glutamine, small peptides, and lactic acid contents in the fermented feed increased by 69.1%, 700%, 47.6%, and 125.9%, respectively. Incorporating 15% and 30% CGM fermented feed into the diet markedly enhanced the growth performance and intestinal health of broilers, positively modulated the cecal microbiota structure, and augmented the population of beneficial bacteria, specifically Lactobacillus. These results furnish both experimental and theoretical foundations for deploying CGM fermented feed as an alternative protein feed resource.
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Affiliation(s)
- Lei Fan
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Xiaolan Liu
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China
| | - Yongping Deng
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China
| | - Xiqun Zheng
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, China
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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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12
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Nouska C, Hatzikamari M, Matsakidou A, Biliaderis CG, Lazaridou A. Enhancement of Textural and Sensory Characteristics of Wheat Bread Using a Chickpea Sourdough Fermented with a Selected Autochthonous Microorganism. Foods 2023; 12:3112. [PMID: 37628111 PMCID: PMC10453481 DOI: 10.3390/foods12163112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
A traditional Greek sourdough, based on the fermentation of chickpea flour by an autochthonous culture, was evaluated as a wheat bread improver. The dominant indigenous microflora (Clostridium perfringens isolates) was identified by 16S rDNA analysis, and a selected strain (C. perfringens CP8) was employed to ferment chickpea flour to obtain a standardized starter culture (sourdough) for breadmaking. In accordance with toxin-typed strain identification, all isolates lacked the cpe gene; thus, there is no concern for a health hazard. Loaf-specific volumes increased with the addition of liquid, freeze-dried, and freeze-dried/maltodextrin sourdoughs compared to control bread leavened by baker's yeast only. Following storage (4 days/25 °C), the amylopectin retrogradation and crumb hardness changes (texture profile analysis) revealed a lower degree of staling for the sourdough-fortified breads. Modifications in the protein secondary structure of fortified doughs and breads were revealed by FTIR analysis. High amounts of organic acids were also found in the sourdough-supplemented breads; butyric and isobutyric acids seemed to be responsible for the characteristic 'butter-like' flavor of these products (sensory analysis). Overall, the addition of liquid or freeze-dried chickpea sourdough in wheat bread formulations can improve the specific volume, textural characteristics, and sensorial properties of loaves, along with extending bread shelf life.
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Affiliation(s)
- Chrysanthi Nouska
- Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, P.O. Box 235, 54124 Thessaloniki, Greece; (M.H.); (A.M.); (C.G.B.); (A.L.)
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13
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Van de Voorde D, Díaz-Muñoz C, Hernandez CE, Weckx S, De Vuyst L. Yeast strains do have an impact on the production of cured cocoa beans, as assessed with Costa Rican Trinitario cocoa fermentation processes and chocolates thereof. Front Microbiol 2023; 14:1232323. [PMID: 37621398 PMCID: PMC10445768 DOI: 10.3389/fmicb.2023.1232323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/20/2023] [Indexed: 08/26/2023] Open
Abstract
The microbiological and metabolic outcomes of good cocoa fermentation practices can be standardized and influenced through the addition of starter culture mixtures composed of yeast and bacterial strains. The present study performed two spontaneous and 10 starter culture-initiated (SCI) cocoa fermentation processes (CFPs) in Costa Rica with local Trinitario cocoa. The yeast strains Saccharomyces cerevisiae IMDO 050523, Hanseniaspora opuntiae IMDO 020003, and Pichia kudriavzevii IMDO 060005 were used to compose starter culture mixtures in combination with the lactic acid bacterium strain Limosilactobacillus fermentum IMDO 0611222 and the acetic acid bacterium strain Acetobacter pasteurianus IMDO 0506386. The microbial community and metabolite dynamics of the cocoa pulp-bean mass fermentation, the metabolite dynamics of the drying cocoa beans, and the volatile organic compound (VOC) profiles of the chocolate production were assessed. An amplicon sequence variant approach based on full-length 16S rRNA gene sequencing instead of targeting the V4 region led to a highly accurate monitoring of the starter culture strains added, in particular the Liml. fermentum IMDO 0611222 strain. The latter strain always prevailed over the background lactic acid bacteria. A similar approach, based on the internal transcribed spacer (ITS1) region of the fungal rRNA transcribed unit, was used for yeast strain monitoring. The SCI CFPs evolved faster when compared to the spontaneous ones. Moreover, the yeast strains applied did have an impact. The presence of S. cerevisiae IMDO 050523 was necessary for successful fermentation of the cocoa pulp-bean mass, which was characterized by the production of higher alcohols and esters. In contrast, the inoculation of H. opuntiae IMDO 020003 as the sole yeast strain led to underfermentation and a poor VOC profile, mainly due to its low competitiveness. The P. kudriavzevii IMDO 060005 strain tested in the present study did not contribute to a richer VOC profile. Although differences in VOCs could be revealed in the cocoa liquors, no significant effect on the final chocolates could be obtained, mainly due to a great impact of cocoa liquor processing during chocolate-making. Hence, optimization of the starter culture mixture and cocoa liquor processing seem to be of pivotal importance.
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Affiliation(s)
- Dario Van de Voorde
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Cristian Díaz-Muñoz
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Carlos Eduardo Hernandez
- Laboratorio de Calidad e Innovación Agroalimentaria, Escuela de Ciencias Agrarias, Universidad Nacional de Costa Rica, Heredia, Costa Rica
| | - Stefan Weckx
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Luc De Vuyst
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
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14
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Costantini A, Verni M, Mastrolonardo F, Rizzello CG, Di Cagno R, Gobbetti M, Breedveld M, Bruggink S, Lefever K, Polo A. Sourdough "Biga" Fermentation Improves the Digestibility of Pizza Pinsa Romana: An Investigation through a Simulated Static In Vitro Model. Nutrients 2023; 15:2958. [PMID: 37447283 DOI: 10.3390/nu15132958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Baked goods manufacturing parameters and fermentation conditions interfere with the nutrients content and affect their gastrointestinal fate. Pinsa Romana is a type of pizza that, recently, has been commercially rediscovered and that needed elucidation from a nutritional and digestibility perspective. In this study, six types of Pinsa Romana (five made with indirect method and one produced with straight dough technology) were characterized for their biochemical and nutritional features. Several variables like indirect (biga) Pinsa Romana production process, fermentation time and use of sourdough were investigated. The Pinsa Romana made with biga including sourdough and fermented for 48 h at 16 °C ((PR_48(SD)) resulted in the lowest predicted glycemic index, in the highest content of total peptides, total and individual free amino acids and gamma-amino butyric acid (GABA), and in the best protein quality indexes (protein efficiency ratio and nutritional index). The static in vitro digestion showed that the digesta from PR_48(SD) confirmed a reduced in vitro glycemic response after intake, and it showed a lower bioavailability of hydrophilic peptides. Furthermore, the inclusion of sourdough in biga enhanced the bioavailability of protein-related end-products including human health promoting compounds such as essential amino acids.
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Affiliation(s)
- Alice Costantini
- Faculty of Agricultural, Environmental and Food Sciences, Libera Universitá di Bolzano, Piazza Universitá 5, 39100 Bolzano, Italy
| | - Michela Verni
- Department of Environmental Biology, "Sapienza" University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Federica Mastrolonardo
- Faculty of Agricultural, Environmental and Food Sciences, Libera Universitá di Bolzano, Piazza Universitá 5, 39100 Bolzano, Italy
| | - Carlo Giuseppe Rizzello
- Department of Environmental Biology, "Sapienza" University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Raffaella Di Cagno
- Faculty of Agricultural, Environmental and Food Sciences, Libera Universitá di Bolzano, Piazza Universitá 5, 39100 Bolzano, Italy
| | - Marco Gobbetti
- Faculty of Agricultural, Environmental and Food Sciences, Libera Universitá di Bolzano, Piazza Universitá 5, 39100 Bolzano, Italy
| | | | - Suzan Bruggink
- Fourneo, 300 Rue Gilbert Chiquet, 62500 Leulinghem, France
| | | | - Andrea Polo
- Faculty of Agricultural, Environmental and Food Sciences, Libera Universitá di Bolzano, Piazza Universitá 5, 39100 Bolzano, Italy
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15
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Tatulli G, Cagliani LR, Sparvoli F, Brasca M, Consonni R. NMR-Based Metabolomic Study on Phaseolus vulgaris Flour Fermented by Lactic Acid Bacteria and Yeasts. Molecules 2023; 28:4864. [PMID: 37375419 DOI: 10.3390/molecules28124864] [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: 05/05/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
In recent years, fermented foods have attracted increasing attention due to their important role in the human diet, since they supply beneficial health effects, providing important sources of nutrients. In this respect, a comprehensive characterization of the metabolite content in fermented foods is required to achieve a complete vision of physiological, microbiological, and functional traits. In the present preliminary study, the NMR-based metabolomic approach combined with chemometrics has been applied, for the first time, to investigate the metabolite content of Phaseolus vulgaris flour fermented by different lactic acid bacteria (LAB) and yeasts. A differentiation of microorganisms (LAB and yeasts), LAB metabolism (homo- and heterofermentative hexose fermentation), LAB genus (Lactobacillus, Leuconostoc, and Pediococcus), and novel genera (Lacticaseibacillus, Lactiplantibacillus, and Lentilactobacillus) was achieved. Moreover, our findings showed an increase of free amino acids and bioactive molecules, such as GABA, and a degradation of anti-nutritional compounds, such as raffinose and stachyose, confirming the beneficial effects of fermentation processes and the potential use of fermented flours in the production of healthy baking foods. Finally, among all microorganisms considered, the Lactiplantibacillus plantarum species was found to be the most effective in fermenting bean flour, as a larger amount of free amino acids were assessed in their analysis, denoting more intensive proteolytic activity.
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Affiliation(s)
- Giuseppina Tatulli
- National Research Council, Institute of Sciences of Food Production (ISPA), Via Celoria 2, 20133 Milan, Italy
| | - Laura Ruth Cagliani
- National Research Council, Institute of Chemical Sciences and Technologies "G. Natta" (SCITEC), Via Corti 12, 20133 Milan, Italy
| | - Francesca Sparvoli
- National Research Council, Institute of Agricultural Biology and Biotechnology (IBBA), Via Corti 12, 20133 Milan, Italy
| | - Milena Brasca
- National Research Council, Institute of Sciences of Food Production (ISPA), Via Celoria 2, 20133 Milan, Italy
| | - Roberto Consonni
- National Research Council, Institute of Chemical Sciences and Technologies "G. Natta" (SCITEC), Via Corti 12, 20133 Milan, Italy
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16
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Di Gianvincenzo F, Andersen CK, Filtenborg T, Mackie M, Ernst M, Ramos Madrigal J, Olsen JV, Wadum J, Cappellini E. Proteomic identification of beer brewing products in the ground layer of Danish Golden Age paintings. SCIENCE ADVANCES 2023; 9:eade7686. [PMID: 37224244 DOI: 10.1126/sciadv.ade7686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/18/2023] [Indexed: 05/26/2023]
Abstract
The application of mass spectrometry-based proteomics to artworks provides accurate and detailed characterization of protein-based materials used in their production. This is highly valuable to plan conservation strategies and reconstruct the artwork's history. In this work, the proteomic analysis of canvas paintings from the Danish Golden Age led to the confident identification of cereal and yeast proteins in the ground layer. This proteomic profile points to a (by-)product of beer brewing, in agreement with local artists' manuals. The use of this unconventional binder can be connected to the workshops within the Royal Danish Academy of Fine Arts. The mass spectrometric dataset generated from proteomics was also processed with a metabolomics workflow. The spectral matches observed supported the proteomic conclusions, and, in at least one sample, suggested the use of drying oils. These results highlight the value of untargeted proteomics in heritage science, correlating unconventional artistic materials with local culture and practices.
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Affiliation(s)
- Fabiana Di Gianvincenzo
- Globe Institute, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Veˇna Pot 113, 1000 Ljubljana, Slovenia
| | - Cecil Krarup Andersen
- Royal Danish Academy, Conservation, Philip De Langes Allé 10, 3.15, 1435 Copenhagen, Denmark
| | - Troels Filtenborg
- National Gallery of Denmark, Sølvgade 48-50, 1307 Copenhagen, Denmark
| | - Meaghan Mackie
- Globe Institute, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Madeleine Ernst
- Section for Clinical Mass Spectrometry, Danish Center for Neonatal Screening, Department of Congenital Disorders, Statens Serum Institut, Artillerivej 5, 2300 Copenhagen, Denmark
| | - Jazmín Ramos Madrigal
- Globe Institute, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark
| | - Jesper V Olsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Jørgen Wadum
- Centre for Art Technological Studies and Conservation, National Gallery of Denmark, Sølvgade 48-50, 1307 Copenhagen, Denmark
- Wadum Art Technological Studies, Åløkkevej 24, 2720 Vanløse, Denmark
- Nivaagaard Collection, Gammel Strandvej 2, 2990 Nivå, Denmark
| | - Enrico Cappellini
- Globe Institute, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark
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17
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Lafuente C, Calpe J, Musto L, Nazareth TDM, Dopazo V, Meca G, Luz C. Preparation of Sourdoughs Fermented with Isolated Lactic Acid Bacteria and Characterization of Their Antifungal Properties. Foods 2023; 12:foods12040686. [PMID: 36832761 PMCID: PMC9955050 DOI: 10.3390/foods12040686] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Traditional sourdough is obtained using a mixture of flour and water stored at room temperature until acidification. Therefore, adding lactic acid bacteria (LAB) can improve the quality and safety of sourdough bread. Faced with this problem, four drying techniques-freeze-drying, spray-drying, low-temperature drying, and drying at low humidity-have been applied. Our goals were to isolate LAB strains with antifungal potential against Aspergillus and Penicillium fungi. The antifungal capacity was evaluated with agar diffusion, co-culture in overlay agar, and a microdilution susceptibility assay. In addition, the antifungal compounds generated in sourdough were analyzed. As a result, dried sourdoughs were prepared with Lactiplantibacillus plantarum TN10, Lactiplantibacillus plantarum TF2, Pediococcus pentosaceus TF8, Pediococcus acidilactici TE4, and Pediococcus pentosaceus TI6. The minimum fungicidal concentrations ranged from 25 g/L versus P. verrucosum and 100 g/L against A. flavus. A total of 27 volatile organic compounds were produced. Moreover, the lactic acid content reached 26 g/kg of dry product, and the phenyllactic concentration was significantly higher than the control. The P. pentosaceus TI6 exhibited a higher antifungal capacity in vitro and demonstrated a higher production of antifungal compounds compared to the other strains; therefore, further studies will evaluate the impact of this sourdough in bread manufacture.
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Affiliation(s)
- Carla Lafuente
- Department of Food Science and Toxicology, Faculty of Pharmacy, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
| | - Jorge Calpe
- AgrotechUV Incubator, University of Valencia Science Park, St. Catedrático Agustín Escardino 9, 46980 Paterna, Spain
| | - Leonardo Musto
- Department of Food Science and Toxicology, Faculty of Pharmacy, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
| | - Tiago de Melo Nazareth
- Department of Food Science and Toxicology, Faculty of Pharmacy, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
- Correspondence: ; Tel.: +34-963-54-49-59
| | - Victor Dopazo
- Department of Food Science and Toxicology, Faculty of Pharmacy, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
| | - Giuseppe Meca
- Department of Food Science and Toxicology, Faculty of Pharmacy, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
| | - Carlos Luz
- Department of Food Science and Toxicology, Faculty of Pharmacy, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
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18
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Adamek M, Zvonkova M, Buresova I, Buran M, Sevcikova V, Sebestikova R, Adamkova A, Skowronkova N, Mlcek J. Use of a Thermodynamic Sensor in Monitoring Fermentation Processes in Gluten-Free Dough Proofing. SENSORS (BASEL, SWITZERLAND) 2023; 23:534. [PMID: 36617133 PMCID: PMC9823817 DOI: 10.3390/s23010534] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/29/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Dough fermentation in gluten-free bakery products is problematic due to the absence of gluten, which provides advantageous rheological properties. A thermodynamic sensor (TDS) system combined with an electronic nose was tested as an alternative to conventional methods monitoring dough development based on mechanical properties. In the first part, the configuration of the sensors in the thermodynamic system and their response to different heat-source positions, which significantly affect the output signal from the measurement system, were investigated. The practical contribution lies in the application of the measurements to the example of gluten-free doughs with and without edible insect enrichment. An optimized configuration of the thermodynamic system (one sensor on the inner wall of the container at the bottom and another in the middle of the container closer to the top of the dough) in combination with an experimental electronic nose was used for the aforementioned measurement. In some cases, up to 87% correlation between the signal from the TDS and the signals from a professional rheofermentometer Rheo F-4 (Chopin) was demonstrated. The differences between the results can be explained by the use of different techniques. Using a combination of sensor systems in one place, one time and one sample can lead to more comprehensive and robust results. Furthermore, it was shown that the fermentation activity increased in corn dough with the addition of insects compared to dough without the addition. In rice flour dough with the addition of edible insects, fermentation activity was similar to that of the flour without the addition.
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Affiliation(s)
- Martin Adamek
- Department of Automation and Control Engineering, Faculty of Applied Informatics, Tomas Bata University in Zlin, Nad Stranemi 4511, 760 05 Zlin, Czech Republic
- Department of Microelectronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic
| | - Magdalena Zvonkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Iva Buresova
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Martin Buran
- Department of Microelectronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic
| | - Veronika Sevcikova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Romana Sebestikova
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Anna Adamkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Nela Skowronkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Jiri Mlcek
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
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19
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Wang X, Huangfu X, Zhao M, Zhao R. Chinese traditional sourdough steamed bread made by retarded sponge-dough method: Microbial dynamics, metabolites changes and bread quality during continuous propagation. Food Res Int 2023; 163:112145. [PMID: 36596098 DOI: 10.1016/j.foodres.2022.112145] [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: 05/29/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
Continuous propagation of Chinese traditional sourdough (CTS) was adopted to simulate the industrial production of sourdough steamed bread made by retarded sponge-dough method (SSB). Establishment of a stable microbial ecosystem occurred in mature sourdough within four days of continuous propagation, as revealed by both microbial and metabolic analyses. Lactobacillus sanfranciscensis and Kazachstania humilis were the predominant bacterial and fungal species in mature sourdoughs. Their relative abundances changed significantly from the first to third day of continuous propagation while exhibited relatively constant from the fourth day onwards despite the use of flour/water for each back-slopping step. Major changes in the metabolites and fermentative characteristics were observed during the initial three days and dough samples showed little temporal metabolic and fermentative variations from the fourth days onwards. Consequently, volumetric and textural properties as well as the volatile flavor compounds of SSB displayed rather high stability from the fourth day onwards.
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Affiliation(s)
- Xiangyu Wang
- College of Food Science and Engineering, Henan University of Technology, Lianhua Street, Hi-tech Development Zone, Zhengzhou, Henan Province 450001, China
| | - Xinyan Huangfu
- College of Food Science and Engineering, Henan University of Technology, Lianhua Street, Hi-tech Development Zone, Zhengzhou, Henan Province 450001, China
| | - Mengyuan Zhao
- College of Food Science and Engineering, Henan University of Technology, Lianhua Street, Hi-tech Development Zone, Zhengzhou, Henan Province 450001, China
| | - Renyong Zhao
- College of Food Science and Engineering, Henan University of Technology, Lianhua Street, Hi-tech Development Zone, Zhengzhou, Henan Province 450001, China.
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20
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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; 11:109. [PMID: 36677402 PMCID: PMC9865925 DOI: 10.3390/microorganisms11010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [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
| | - María Cruz Figueroa-Espinoza
- Qualisud, Univ Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de la Réunion, F-34398 Montpellier, France
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Wang Z, Ma S, Li L, Huang J. Effect of wheat bran dietary fiber on structural properties and hydrolysis behavior of gluten after synergistic fermentation of Lactobacillus plantarum and Saccharomyces cerevisiae. Front Nutr 2022; 9:982878. [PMID: 36204369 PMCID: PMC9530331 DOI: 10.3389/fnut.2022.982878] [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: 06/30/2022] [Accepted: 08/08/2022] [Indexed: 11/26/2022] Open
Abstract
The effect of synergistic fermentation of Lactobacillus plantarum and Saccharomyces cerevisiae on the structural properties and aggregation behavior of gluten containing different wheat bran dietary fiber (WBDF) levels (0, 3, 6, 9, and 12%) was investigated. The results showed that WBDF addition affected the aggregation behavior of gluten at the molecular level, while WBDF significantly induced depolymerization behaviors in large aggregated gluten proteins (Molecular weight > 130 kDa) under reducing conditions (p < 0.05). In terms of secondary structure, WBDF significantly reduced glutamine side chain levels and reduced antiparallel β-sheet structures from 28.57 to 24.53% (p < 0.05). In addition, WBDF thermal properties and its water holding capacity were the main factors causing changes in thermal properties in the overall gluten system. This study provides new data for the improved production of sourdough whole grain and/or high fiber flour products.
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Affiliation(s)
- Zhen Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng, China
| | - Sen Ma
- State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng, China
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
- School of Food and Pharmacy, Xuchang University, Xuchang, China
- *Correspondence: Sen Ma
| | - Li Li
- State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng, China
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
| | - Jihong Huang
- State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng, China
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
- School of Food and Pharmacy, Xuchang University, Xuchang, China
- Jihong Huang
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22
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Characterization of Dextran Produced by the Food-Related Strain Weissella cibaria C43-11 and of the Relevant Dextransucrase Gene. Foods 2022; 11:foods11182819. [PMID: 36140946 PMCID: PMC9498152 DOI: 10.3390/foods11182819] [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: 07/28/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 11/25/2022] Open
Abstract
A metabolic feature of lactic acid bacteria (LAB) is the production of exopolysaccharides (EPSs), which have technological and functional properties of interest to the food sector. The present study focused on the characterization of the Weissella cibaria strain C43-11, a high EPS producer in the presence of sucrose, in comparison with a low-producing strain (C2-32), and on possible genetic regulatory elements responsible for the modulation of dextransucrase (dsr) genes expression. NMR analysis of the polymeric material produced by the C43-11 strain indicated the presence of dextran consisting mainly of a linear scaffold formed by α-(1–6) glycosidic linkages and a smaller amounts of branches derived from α-(1–2), α-(1–3), and α-(1–4) linkages. Molecular analysis of the dsr genes and the putative transcriptional promoters of the two strains showed differences in their regulatory regions. Such variations may have a role in the modulation of dsr expression levels in the presence of sucrose. The strong upregulation of the dsr gene in the C43-11 strain resulted in a high accumulation of EPS. This is the first report showing differences in the regulatory elements of the dsr gene in W. cibaria and indicates a new perspective of investigation to identify the regulatory mechanism of EPS production.
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Scheuer PM, Southgate ANN, Martelli MF, Dias C, da Silva ME, Coelho AA, de Francisco A. Quality Properties of a Bread Made with Levain and Cocoa Waste. JOURNAL OF CULINARY SCIENCE & TECHNOLOGY 2022. [DOI: 10.1080/15428052.2020.1848685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | | | | | - Camila Dias
- Gastronomy Department, Federal Institute of Santa Catarina, Florianópolis, Brazil
| | - Maria Eliza da Silva
- Food Science Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Alicia de Francisco
- Food Science Department, Federal University of Santa Catarina, Florianópolis, Brazil
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Warburton A, Silcock P, Eyres GT. Impact of sourdough culture on the volatile compounds in wholemeal sourdough bread. Food Res Int 2022; 161:111885. [DOI: 10.1016/j.foodres.2022.111885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022]
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25
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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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26
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Guo W, Li Z, Fu X, Zhou W, Ren J, Wu Y. Effect of Staphylococcus aureus Contamination on the Microbial Diversity and Metabolites in Wholewheat Sourdough. Foods 2022; 11:foods11131960. [PMID: 35804775 PMCID: PMC9265278 DOI: 10.3390/foods11131960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/26/2022] [Accepted: 06/26/2022] [Indexed: 11/16/2022] Open
Abstract
Wholewheat sourdough products are becoming increasingly more popular, and Staphylococcus aureus is a common opportunistic pathogen in dough products. The effects of S. aureus contamination (102 cfu/g) on metabolites as well as titratable acidity (TTA), pH, and microbial diversity of sourdough were investigated. S. aureus contamination significantly decreased the content of mannose while increasing the sorbitol in sourdough (p < 0.05). The S. aureus contamination significantly reduced the number of lactic acid bacteria (LAB), such as Lactobacillus curvatus, and the TTA values (p < 0.05). Furthermore, S. aureus contamination significantly reduced the content of most esters and acid flavor compounds while significantly increasing the content of 2,4-decadienal (p < 0.05), which is a compound that could have a negative impact on the flavor of sourdough. The PCA model developed based on volatile metabolites data could be used to distinguish contamination of S. aureus in sourdough cultured for 4 h. Sorbitol, 2,3-dimethylundecane, 1-pentanol, and 3-methylbutanoic acid were newly found to be the characteristic metabolites in S. aureus-contaminated sourdough.
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Affiliation(s)
- Weidan Guo
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (W.G.); (Z.L.); (W.Z.); (J.R.); (Y.W.)
| | - Zhengwen Li
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (W.G.); (Z.L.); (W.Z.); (J.R.); (Y.W.)
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510000, China
| | - Xiangjin Fu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (W.G.); (Z.L.); (W.Z.); (J.R.); (Y.W.)
- Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, China
- Hunan Key Laboratory of Forest Food Processing and Safety Quality Control, Changsha 410004, China
- Hunan Engineering Technology Research Center of Nutrition and Health Products, Changsha 410004, China
- Correspondence:
| | - Wenhua Zhou
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (W.G.); (Z.L.); (W.Z.); (J.R.); (Y.W.)
- Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, China
| | - Jiali Ren
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (W.G.); (Z.L.); (W.Z.); (J.R.); (Y.W.)
- Hunan Key Laboratory of Forest Food Processing and Safety Quality Control, Changsha 410004, China
| | - Yue Wu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (W.G.); (Z.L.); (W.Z.); (J.R.); (Y.W.)
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Potential of three different lactic acid Bacteria to use as starter culture for production of type II sourdough breadmaking. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01493-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bazalová O, Cihlář JZ, Dlouhá Z, Bár L, Dráb V, Kavková M. Rapid sourdough yeast identification using panfungal PCR combined with high resolution melting analysis. METHODS IN MICROBIOLOGY 2022; 199:106522. [PMID: 35716843 DOI: 10.1016/j.mimet.2022.106522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 10/18/2022]
Abstract
The microbial composition of the sourdough starter affects the sourdough bread properties. Therefore, it is crucial to find a tool for rapid, time-saving, and economical identification of the sourdough microbiota. We focused on the rapid identification of sourdough yeasts. We designed a panfungal real time-PCR targeting the ITS2 region (ITS-amplicon) and a fragment of D1/D2 region of 26S rRNA gene (U-amplicon) and used high resolution melting analysis (HRM) for subsequent species identification. The sensitivity and specificity of our method were tested on the reference yeast cultures. We obtained divergent melting peaks (Tm). The further analysis of melt curves suggests the possibility to discriminate yeasts on the genus- and some on species-specific level in the mixed sample. The applicability of this method in routine practice was evaluated on nine sourdough samples. Revealed melt curves of U-amplicons were predominantly characteristic of the sourdough. The evaluation of the Tm and the shape of the melt curve was used to assess the sourdough yeasts. Additionally, using the HRM-PCR method the contamination with the ergot fungus DNA was revealed. Our data showed HRM-PCR is a simple, rapid, and inexpensive tool useful in identifying sourdough yeasts.
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Affiliation(s)
- Olga Bazalová
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic.
| | - Jaromír Z Cihlář
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Zuzana Dlouhá
- Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Ladislav Bár
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Vladimír Dráb
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Miloslava Kavková
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
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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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30
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Kaya Y, Erten T, Vurmaz M, İspirli H, Şimşek Ö, Dertli E. Comparison of the probiotic characteristics of Lactic Acid Bacteria (LAB) isolated from sourdough and infant feces. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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31
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Functional Foods, Nutraceuticals and Probiotics: A Focus on Human Health. Microorganisms 2022; 10:microorganisms10051065. [PMID: 35630507 PMCID: PMC9143759 DOI: 10.3390/microorganisms10051065] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 02/04/2023] Open
Abstract
Functional foods are classified as traditional or staple foods that provide an essential nutritional level and share potentially positive effects on host health, including the reduction of disease by optimizing the immune system’s ability to prevent and control infections by pathogens, as well as pathologies that cause functional alterations in the host. This chapter reviews the most recent research and advances in this area and discusses some perspectives on what the future holds in this area.
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32
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Mannino G, Cirlincione F, Gaglio R, Franciosi E, Francesca N, Moschetti G, Asteggiano A, Medana C, Gentile C, Settanni L. Preliminary Investigation of Biogenic Amines in Type I Sourdoughs Produced at Home and Bakery Level. Toxins (Basel) 2022; 14:toxins14050293. [PMID: 35622540 PMCID: PMC9145269 DOI: 10.3390/toxins14050293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/13/2022] [Accepted: 04/19/2022] [Indexed: 02/01/2023] Open
Abstract
During a survey for isolating sourdough lactic acid bacteria (LAB), 20 dough samples produced at the bakery level (BL) or home-made (HM) were collected. An enzyme-based colorimetric method revealed a total biogenic amines (BAs) concentration in the range 41.4–251.8 ppm for six (three BL and three HM) sourdoughs characterised by unpleasant odours. Eight BAs generally investigated in foods were identified and quantified from these six samples by ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC–MS/MS). Only one HM sample contained almost all analysed BAs. Tryptamine was exclusively detected in HM sourdoughs (0.71–24.1 ppm). Putrescine, tryptamine, spermidine, and spermine were the only BAs detected in BL sourdoughs. MiSeq Illumina analysis was applied to study the total bacterial community of sourdoughs. LAB accounted from 67.89 to 92.17% of total bacterial diversity, and Levilactobacillus brevis was identified in all six sourdoughs. Leuconostoc, Pediococcus, and Weissella were also dominant. Plate counts detected neither the presence of Pseudomonas nor members of the Enterobacteriaceae family, and LAB levels were, on average, barely 5.89 Log CFU/g for BL, and 7.33 Log CFU/g for HM sourdoughs. Data suggested that the microorganisms mainly imputable of BAs formation in sourdough are members of the LAB community.
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Affiliation(s)
- Giuseppe Mannino
- Department of Life Science and Systems Biology, University of Turin, Via Accademia Albertina, 13, 10123 Torino, Italy;
| | - Fortunato Cirlincione
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Ed. 5, 90128 Palermo, Italy; (F.C.); (R.G.); (N.F.); (G.M.)
| | - Raimondo Gaglio
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Ed. 5, 90128 Palermo, Italy; (F.C.); (R.G.); (N.F.); (G.M.)
| | - Elena Franciosi
- Research and Innovation Centre, Edmund Mach Foundation (FEM), Via E. Mach 1, 38098 San Michele all’Adige, Italy;
| | - Nicola Francesca
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Ed. 5, 90128 Palermo, Italy; (F.C.); (R.G.); (N.F.); (G.M.)
| | - Giancarlo Moschetti
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Ed. 5, 90128 Palermo, Italy; (F.C.); (R.G.); (N.F.); (G.M.)
| | - Alberto Asteggiano
- Department of Molecular Biotechnology and Health Sciences, University of Palermo, Via Giuria, 5, 10125 Torino, Italy; (A.A.); (C.M.)
| | - Claudio Medana
- Department of Molecular Biotechnology and Health Sciences, University of Palermo, Via Giuria, 5, 10125 Torino, Italy; (A.A.); (C.M.)
| | - Carla Gentile
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze 16, 90128 Palermo, Italy
- Correspondence: (C.G.); (L.S.)
| | - Luca Settanni
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Ed. 5, 90128 Palermo, Italy; (F.C.); (R.G.); (N.F.); (G.M.)
- Correspondence: (C.G.); (L.S.)
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Effects of Teff-Based Sourdoughs on Dough Rheology and Gluten-Free Bread Quality. Foods 2022; 11:foods11071012. [PMID: 35407099 PMCID: PMC8997562 DOI: 10.3390/foods11071012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/22/2022] [Accepted: 03/25/2022] [Indexed: 12/24/2022] Open
Abstract
Production of gluten-free bread (GFB) with good quality characteristics represents a technological challenge. Our study aimed to obtain nongluten bread from cereals and pseudocereals with applying single cultures of Pediococcus acidilactici, Pediococcus pentosaceus and Enteroccocus durans as sourdoughs. The effect of sourdoughs on the quality traits of gluten-free (GF) dough and GFB was explored. The structural and baking properties of GF dough composed of teff, rice, corn, and sorghum flours were improved by adding xanthan gum (0.6%), guar gum (1.0%) and carboxymethyl cellulose (1.0%). The tested strains reached 108 cfu/g in teff flour and produced sourdoughs with a pleasant lactic aroma. The sourdough-fermented doughs were softer and more elastic compared to control dough and yielded reduced baking loss. Strain Enterococcus durans ensured the best baking characteristics of GF dough and the highest softness of the GFB during storage. Strain Pediococcus pentosaceus had the most pronounced positive effect on aroma, taste and aftertaste. Pan baking was found to be more appropriate to obtain stable shape and good-looking products. A careful starter culture selection is necessary for GFB development since a significant effect of strain specificity on dough rheology and baking characteristics was observed.
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Litwinek D, Boreczek J, Gambuś H, Buksa K, Berski W, Kowalczyk M. Developing lactic acid bacteria starter cultures for wholemeal rye flour bread with improved functionality, nutritional value, taste, appearance and safety. PLoS One 2022; 17:e0261677. [PMID: 35030182 PMCID: PMC8759695 DOI: 10.1371/journal.pone.0261677] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/09/2021] [Indexed: 11/30/2022] Open
Abstract
Starter cultures composed of lactic acid bacteria (LAB) were developed based on the genotypic and phenotypic characterisation of isolates belonging to dominant groups of bacteria in spontaneous rye wholemeal sourdoughs. Combinations of strains have been evaluated on an industrial scale in the sourdough fermentation process. Wholemeal rye bread was prepared using sourdoughs obtained with 3 new starter cultures, and compared to bread made using the commercial culture (LV2). All newly developed cultures used for the preparation of wholemeal rye bread allowed to obtain better quality products as compared to the LV2 based bread. The best results were obtained when the culture containing Lactiplantibacillus plantarum 2MI8 and exopolysaccharide (EPS)-producing Weissella confusa/cibaria 6PI3 strains was applied. The addition of yeast during sourdough breads production, especially the one prepared from mentioned above starter culture, significantly improved their organoleptic properties, their volume and crumb moisture was increased, and also the crumb acidity and hardness was reduced. Fermentation of rye wholemeal dough, especially without the yeast addition, resulted in a significant reduction in the content of higher inositol phosphates as compared to the applied flour, which is associated with improved bioavailability of minerals. The results of this study prove that the investigated new starter cultures can be successfully applied in wholemeal rye bread production.
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Affiliation(s)
- Dorota Litwinek
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Krakow, Poland
| | - Jakub Boreczek
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Halina Gambuś
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Krakow, Poland
| | - Krzysztof Buksa
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Krakow, Poland
| | - Wiktor Berski
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Krakow, Poland
| | - Magdalena Kowalczyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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35
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Sun J, Silander O, Rutherfurd-Markwick K, Wen D, Davy TPP, Mutukumira AN. Phenotypic and genotypic characterisation of Lactobacillus and yeast isolates from a traditional New Zealand Māori potato starter culture. Curr Res Food Sci 2022; 5:1287-1294. [PMID: 36061410 PMCID: PMC9428859 DOI: 10.1016/j.crfs.2022.08.004] [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: 06/03/2022] [Revised: 07/23/2022] [Accepted: 08/10/2022] [Indexed: 11/05/2022] Open
Abstract
Parāroa Rēwena is a traditional Māori sourdough produced by fermentation using a potato starter culture. The microbial composition of the starter culture is not well characterised, despite the long history of this product. The morphological, physiological, biochemical and genetic tests were conducted to characterise 26 lactic acid bacteria (LAB) and 15 yeast isolates from a Parāroa Rēwena potato starter culture. The results of sugar fermentation tests, API 50 CHL tests, and API ID 32 C tests suggest the presence of four different LAB phenotypes and five different yeast phenotypes. 16S rRNA and 26S rRNA sequencing identified the LAB as Lacticaseibacillus paracasei and the yeast isolates as Saccharomyces cerevisiae, respectively. Multilocus sequence typing (MLST) of the L. paracasei isolates indicated that they had identical genotypes at the MLST loci, to L. paracasei subsp. paracasei IBB 3423 or L. paracasei subsp. paracasei F19. This study provides new insights into the microbial composition of the traditional sourdough Parāroa Rēwena starter culture. 16S sequencing, Multilocus sequencing typing for LAB in the potato starter culture. 26S sequencing for yeast in the starter culture. Lacticaseibacillus paracasei subsp. paracasei IBB3423. Lacticaseibacillus paracasei subsp. paracasei F19. Saccharomycescerevisiae.
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Enriching Lactobacilli from Fermented Pulse Dal Flour-Analyzing its Efficacy in Utilizing Carbohydrates and Production of α-galactosidase Enzyme During Pigeon Pea Fermentation. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.4.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pigeon peas are an excellent source of carbohydrates, proteins and other nutrients. Many traditional fermented foods are prepared from cereals and combinations of cereals and pulses that usually contain Lactic acid bacteria (LAB), Bacillus, Enterococcus and yeast. Lactobacillus can be used as a starter culture for such fermentation using pulses, as very few reports are available on fermented pulse-based products. Hence, pulse dal flour was used as a source for isolation of Lactobacillus to maintain their functionality, growth characteristics and activity during food processing. In this study, we investigated the potential of lactobacilli from fermented pigeon pea to utilize carbohydrates, the ability to degrade non-digestible oligosaccharides and the production of the α-galactosidase enzyme. Lactobacillus isolated from six different pulse dal flour grew well during fermentation with carbohydrates in mMRS medium. Among Lactobacillus species, only Lactobacillus brevis displayed the highest α-galactosidase activity (1.24 U/ml), where raffinose was added as the sole carbohydrate source in the medium. The isolate was further tested in pigeon pea fermentation, where it showed maximum activity (1.86 U/ml) and complete hydrolysis of non-digestible oligosaccharides was observed. Overall, usage of Lactobacilli could be an excellent opportunity to design and develop a novel pulse-based fermented product contributing to beneficial bioactive compounds and improving the properties of food.
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Zhang G, Qi Q, Sadiq FA, Wang W, He X, Wang W. Proteomic Analysis Explores Interactions between Lactiplantibacillus plantarum and Saccharomyces cerevisiae during Sourdough Fermentation. Microorganisms 2021; 9:microorganisms9112353. [PMID: 34835478 PMCID: PMC8620635 DOI: 10.3390/microorganisms9112353] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 11/30/2022] Open
Abstract
Sourdough is a fermentation culture which is formed following metabolic activities of a multiple bacterial and fungal species on raw dough. However, little is known about the mechanism of interaction among different species involved in fermentation. In this study, Lactiplantibacillus plantarum Sx3 and Saccharomyces cerevisiae Sq7 were selected. Protein changes in sourdough, fermented with single culture (either Sx3 or Sq7) and mixed culture (both Sx3 and Sq7), were evaluated by proteomics. The results show that carbohydrate metabolism in mixed-culture-based sourdough is the most important metabolic pathway. A greater abundance of L-lactate dehydrogenase and UDP-glucose 4-epimerase that contribute to the quality of sourdough were observed in mixed-culture-based sourdough than those produced by a single culture. Calreticulin, enolase, seryl-tRNA synthetase, ribosomal protein L23, ribosomal protein L16, and ribosomal protein L5 that are needed for the stability of proteins were increased in mixed-culture-based sourdough. The abundance of some compounds which play an important role in enhancing the nutritional characteristics and flavour of sourdough (citrate synthase, aldehyde dehydrogenase, pyruvate decarboxylase, pyruvate dehydrogenase E1 and acetyl-CoA) was decreased. In summary, this approach provided new insights into the interaction between L. plantarum and S. cerevisiae in sourdough, which may serve as a base for further research into the detailed mechanism.
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Affiliation(s)
- Guohua Zhang
- School of Life Science, Shanxi University, Taiyuan 030006, China; (Q.Q.); (W.W.); (X.H.)
- Correspondence: (G.Z.); (W.W.); Tel.: +86-15513091052 (G.Z.); +86-13738132996 (W.W.)
| | - Qianhui Qi
- School of Life Science, Shanxi University, Taiyuan 030006, China; (Q.Q.); (W.W.); (X.H.)
| | - Faizan Ahmed Sadiq
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214000, China;
- School of Food Science and Technology, Jiangnan University, Wuxi 214000, China
| | - Wei Wang
- School of Life Science, Shanxi University, Taiyuan 030006, China; (Q.Q.); (W.W.); (X.H.)
| | - Xiaxia He
- School of Life Science, Shanxi University, Taiyuan 030006, China; (Q.Q.); (W.W.); (X.H.)
| | - Wei Wang
- Institute of Agr-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Key Laboratory of Information Traceability for Agricultural Products, Ministry of Agriculture and Rural Affairs of China, Hangzhou 310021, China
- Correspondence: (G.Z.); (W.W.); Tel.: +86-15513091052 (G.Z.); +86-13738132996 (W.W.)
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Won S, Curtis J, Gänzle M. LC-MS/MS quantitation of α-amylase/trypsin inhibitor CM3 and glutathione during wheat sourdough breadmaking. J Appl Microbiol 2021; 133:120-129. [PMID: 34724302 DOI: 10.1111/jam.15346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/08/2021] [Accepted: 10/26/2021] [Indexed: 12/20/2022]
Abstract
AIMS This study aimed to quantify α-amylase/trypsin inhibitor (ATI) CM3 and glutathione (GSH) during wheat sourdough breadmaking. METHODS AND RESULTS Breads were made with two wheat cultivars and fermented with Fructilactobacillus sanfranciscensis, F. sanfranciscensis ΔgshR or Latilactobacillus sakei; chemically acidified and straight doughs served as controls. Samples were analysed after mixing, after proofing and after baking. GSH and CM3 were quantified by multi-reaction-monitoring-based methods on an LC-QTRAP mass spectrometer. Undigested ATI extracts were further examined by SDS-PAGE. CONCLUSIONS GSH abundance was similar after mixing and after proofing but increased after baking (p < 0.001), regardless of fermentation. In breads baked with cv. Brennan, the samples fermented with lactobacilli had higher GSH abundance (p < 0.001) than in the controls. CM3 relative abundance remained similar after mixing and after proofing but decreased after baking (p < 0.001) across all treatments. This trend was supported by the SDS-PAGE analysis in which ATI band intensities decreased after baking (p < 0.001) in all experimental conditions. The overall effect of baking exerted a greater effect on the abundances of GSH and CM3 than fermentation conditions. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report to quantify ATI over the course of breadmaking by LC-MS/MS in sourdough and straight dough processes.
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Sourdough Fermentation as a Tool to Improve the Nutritional and Health-Promoting Properties of Its Derived-Products. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7040246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cereal products are staple foods highly appreciated and consumed worldwide. Nonetheless, due to the presence of gluten proteins, and other co-existing compounds such as amylase-trypsin inhibitors and fermentable short-chain carbohydrates in those products, their preference by consumers has substantially decreased. Gluten affects the small gut of people with celiac disease, triggering a gut inflammation condition via auto-immune response, causing a cascade of health disorders. Amylase-trypsin inhibitors and fermentable short-chain carbohydrate compounds that co-exists with gluten in the cereal-based foods matrix have been associated with several gastrointestinal symptoms in non-celiac gluten sensitivity. Since the symptoms are somewhat overlapped, the relation between celiac disease and irritable bowel syndrome has recently received marked interest by researchers. Sourdough fermentation is one of the oldest ways of bread leavening, by lactic acid bacteria and yeasts population, converting cereal flour into attractive, tastier, and more digestible end-products. Lactic acid bacteria acidification in situ is a key factor to activate several cereal enzymes as well as the synthesis of microbial active metabolites, to positively influence the nutritional/functional and health-promoting benefits of the derived products. This review aims to explore and highlight the potential of sourdough fermentation in the Food Science and Technology field.
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De Vuyst L, Comasio A, Kerrebroeck SV. Sourdough production: fermentation strategies, microbial ecology, and use of non-flour ingredients. Crit Rev Food Sci Nutr 2021; 63:2447-2479. [PMID: 34523363 DOI: 10.1080/10408398.2021.1976100] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Sourdough production is an ancient method to ferment flour from cereals for the manufacturing of baked goods. This review deals with the state-of-the-art of current fermentation strategies for sourdough production and the microbial ecology of mature sourdoughs, with a particular focus on the use of non-flour ingredients. Flour fermentation processes for sourdough production are typically carried out by heterogeneous communities of lactic acid bacteria and yeasts. Acetic acid bacteria may also occur, although their presence and role in sourdough production can be criticized. Based on the inoculum used, sourdough productions can be distinguished in fermentation processes using backslopping procedures, originating from a spontaneously fermented flour-water mixture (Type 1), starter culture-initiated fermentation processes (Type 2), and starter culture-initiated fermentation processes that are followed by backslopping (Type 3). In traditional recipes for the initiation and/or propagation of Type 1 sourdough productions, non-flour ingredients are often added to the flour-water mixture. These ingredients may be the source of an additional microbial inoculum and/or serve as (co-)substrates for fermentation. An example of the former is the addition of yoghurt; an example of the latter is the use of fruit juices. The survival of microorganisms transferred from the ingredients to the fermenting flour-water mixture depends on the competitiveness toward particular strains of the microbial species present under the harsh conditions of the sourdough ecosystem. Their survival and growth is also determined by the presence of the appropriate substrates, whether or not carried over by the ingredients added.
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Affiliation(s)
- Luc De Vuyst
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Andrea Comasio
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Simon Van Kerrebroeck
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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41
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Kalantarmahdavi M, Khanzadi S, Salari A. Edible Films Incorporating with
Lactobacillus plantarum
Based on Sourdough, Wheat Flour, and Gelatin: Films Characterization and Cell Viability During Storage and Simulated Gastrointestinal Condition. STARCH-STARKE 2021. [DOI: 10.1002/star.202000268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mahboubeh Kalantarmahdavi
- Department of Food Hygiene and Aquaculture Faculty of Veterinary Medicine Ferdowsi University of Mashhad (FUM) Mashhad Iran
| | - Saeid Khanzadi
- Department of Food Hygiene and Aquaculture Faculty of Veterinary Medicine Ferdowsi University of Mashhad (FUM) Mashhad Iran
| | - Amir Salari
- Department of Food Hygiene and Aquaculture Faculty of Veterinary Medicine Ferdowsi University of Mashhad (FUM) Mashhad Iran
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Lau SW, Chong AQ, Chin NL, Talib RA, Basha RK. Sourdough Microbiome Comparison and Benefits. Microorganisms 2021; 9:microorganisms9071355. [PMID: 34201420 PMCID: PMC8306212 DOI: 10.3390/microorganisms9071355] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/11/2022] Open
Abstract
Sourdough is the oldest form of leavened bread used as early as 2000 BC by the ancient Egyptians. It may have been discovered by accident when wild yeast drifted into dough that had been left out resulting in fermentation of good microorganisms, which made bread with better flavour and texture. The discovery was continued where sourdough was produced as a means of reducing wastage with little known (at that point of time) beneficial effects to health. With the progress and advent of science and technology in nutrition, sourdough fermentation is now known to possess many desirable attributes in terms of health benefits. It has become the focus of attention and practice in modern healthy eating lifestyles when linked to the secret of good health. The sourdough starter is an excellent habitat where natural and wild yeast plus beneficial bacteria grow by ingesting only water and flour. As each sourdough starter is unique, with different activities, populations and interactions of yeast and bacteria due to different ingredients, environment, fermentation time and its carbohydrate fermentation pattern, there is no exact elucidation on the complete make-up of the sourdough microbiome. Some lactic acid bacteria (LAB) strains that are part of the sourdough starter are considered as probiotics which have great potential for improving gastrointestinal health. Hence, from a wide literature surveyed, this paper gives an overview of microbial communities found in different sourdough starters. This review also provides a systematic analysis that identifies, categorises and compares these microbes in the effort of linking them to specific functions, particularly to unlock their health benefits.
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Affiliation(s)
| | | | - Nyuk Ling Chin
- Correspondence: ; Tel.: +603-9769-6353; Fax: +603-9769-4440
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Isolation and Characterization of Lactic Acid Bacteria and Yeasts from Typical Bulgarian Sourdoughs. Microorganisms 2021; 9:microorganisms9071346. [PMID: 34206198 PMCID: PMC8306846 DOI: 10.3390/microorganisms9071346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/11/2021] [Accepted: 06/17/2021] [Indexed: 11/23/2022] Open
Abstract
Traditional sourdoughs in Bulgaria were almost extinct during the centralized food production system. However, a rapidly developing trend of sourdough revival in the country is setting the demand for increased production and use of commercial starter cultures. The selection of strains for such cultures is based on geographical specificity and beneficial technological properties. In this connection, the aim of this study was to isolate, identify and characterize lactic acid bacteria (LAB) and yeasts from typical Bulgarian sourdoughs for the selection of strains for commercial sourdough starter cultures. Twelve samples of typical Bulgarian sourdoughs were collected from different geographical locations. All samples were analyzed for pH, total titratable acidity and dry matter content. Enumeration of LAB and yeast was also carried out. Molecular identification by 16S rDNA sequence analysis was performed for 167 LAB isolates, and 106 yeast strains were identified by ITS1-5.8S-ITS2 rRNA gene partial sequence analysis. The LAB strains were characterized according to their amylolytic and proteolytic activity and acidification capacity, and 11 strains were selected for further testing of their antimicrobial properties. The strains with the most pronounced antibacterial and antifungal activity are listed as recommended candidates for the development of starter cultures for sourdoughs or other food products.
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Altilia S, Foschino R, Grassi S, Antoniani D, Dal Bello F, Vigentini I. Investigating the growth kinetics in sourdough microbial associations. Food Microbiol 2021; 99:103837. [PMID: 34119121 DOI: 10.1016/j.fm.2021.103837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 09/30/2022]
Abstract
In this study we investigated the effect of the single strain in stabilization of type I sourdough microbial associations by crossing six different Fructilactobacillus sanfranciscensis with five Kazachstania humilis strains. Furthermore, we compared three predictive models, Zwitwering based on Gompertz's equation, Baranyi and Roberts' function and Schiraldi's function to evaluate which one best fitted the experimental data in determining the behaviour of co-cultivated microorganisms. Specific growth rates (μm) and lag time (λ) values for each mixed population were assessed. Results showed that the different F. sanfranciscensis strains significantly steer the growth kinetics within the pair and affect the ratio bacterial/yeast cells, as data analysis confirmed, whereas K. humilis accommodates to the bacterial strain. To compare the growth models, Root Mean Square (RMS) values were calculated for each predicted curve by implementing an algorithm based on an iterative process to minimize the deviation among observed and calculated data. Schiraldi's function performed better than the others, revealing, on average, the smallest RMS values and providing the best fitting for over 70% of co-cultivation experiments. Models prove to be consistent in predicting growth kinetics of microbial consortia too.
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Affiliation(s)
- Samuele Altilia
- Department of Physics, Università Degli Studi di Milano, Milan, Italy
| | - Roberto Foschino
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Milan, Italy.
| | - Silvia Grassi
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Davide Antoniani
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Milan, Italy
| | | | - Ileana Vigentini
- Department of Food, Environmental and Nutritional Sciences, Università Degli Studi di Milano, Milan, Italy
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45
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Sourdough improves the quality of whole-wheat flour products: Mechanisms and challenges-A review. Food Chem 2021; 360:130038. [PMID: 34020364 DOI: 10.1016/j.foodchem.2021.130038] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 12/11/2022]
Abstract
Increasing the intake of whole-wheat flour (WWF) products is one of the methods to promote health. Sourdough fermentation is increasingly being used in improving the quality of WWF products. This review aims to analyze the effect of sourdough fermentation on WWF products. The effects of sourdough on bran particles, starch, and gluten, as well as the rheology, antinutritional factors, and flavor components in WWF dough/products are comprehensively reviewed. Meanwhile, sourdough fermentation technology has a promising future in reducing anti-nutritional factors and toxic and harmful substances in WFF products. Finally, researchers are encouraged to focus on the efficient strain screening and metabolic pathway control of sourdough for WWF products, as well as the use of bran pre-fermentation and integrated biotechnology to improve the quality of whole-wheat products. This review provides a comprehensive understanding of the effect of sourdough fermentation technology on wholemeal products to promote WWF production.
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46
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Strain-specific interaction of Fructilactobacillus sanfranciscensis with yeasts in the sourdough fermentation. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03722-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AbstractFructilactobacillus (F.) sanfranciscensis is a key bacterium in traditional (type 1) sourdough fermentations. It typically occurs in combination with the sourdough yeast Kazachstania (K.) humilis or the generalist Saccharomyces (S.) cerevisiae. Previous studies revealed intra-species diversity in competitiveness or dominance in sourdoughs of F. sanfranciscensis, as well as preferences for a life with or without a specific yeast. In this study representative, differently behaving strains were studied in media with different sugars and electron acceptors, and in rye sourdough fermentations in the presence and absence of K. humilis or S. cerevisiae. Strain-specific differences were observed in sugar and organic acids spectra in media, and in sourdoughs with F. sanfranciscensis strains in combination with K. humilis or S. cerevisiae. F. sanfranciscensis TMW 1.1150 proved dominant in the presence and absence of any yeast because it most effectively used maltose. Its maltose fermentation was unaffected by electron acceptors. F. sanfranciscensis TMW 1.2138 was the weakest maltose fermenter and incapable of glucose fermentation, and evidently not competitive against the other strains. F. sanfranciscensis TMW 1.392 was the most versatile strain regarding the utilization of different carbohydrates and its ability to exploit electron acceptors like fructose and oxygen. In sourdoughs without yeasts, it outcompeted other strains. The metabolism of F. sanfranciscensis TMW 1.907 was stimulated in combination with S. cerevisiae. In competitive trials, it was assertive only with S. cerevisiae. The intra-species differences in carbohydrate metabolism can widely explain the differences in their behavior in sourdough fermentation. Interaction between F. sanfranciscensis and the yeasts was strain specific and supposedly commensal with K. humilis and rather competitive with S. cerevisiae.
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47
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Functional and Healthy Features of Conventional and Non-Conventional Sourdoughs. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11083694] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sourdough is a composite ecosystem largely characterized by yeasts and lactic acid bacteria which are the main players in the fermentation process. The specific strains involved are influenced by several factors including the chemical and enzyme composition of the flour and the sourdough production technology. For many decades the scientific community has explored the microbiological, biochemical, technological and nutritional potential of sourdoughs. Traditionally, sourdoughs have been used to improve the organoleptic properties, texture, digestibility, palatability, and safety of bread and other kinds of baked products. Recently, novel sourdough-based biotechnological applications have been proposed to meet the demand of consumers for healthier and more natural food and offer new inputs for the food industry. Many researchers have focused on the beneficial effects of specific enzymatic activities or compounds, such as exopolysaccharides, with both technological and functional roles. Additionally, many studies have explored the ability of sourdough lactic acid bacteria to produce antifungal compounds for use as bio-preservatives. This review provides an overview of the fundamental features of sourdoughs and their exploitation to develop high value-added products with beneficial microorganisms and/or their metabolites, which can positively impact human health.
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48
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Dong Y, Karboune S. A review of bread qualities and current strategies for bread bioprotection: Flavor, sensory, rheological, and textural attributes. Compr Rev Food Sci Food Saf 2021; 20:1937-1981. [DOI: 10.1111/1541-4337.12717] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 12/22/2022]
Affiliation(s)
- YiNing Dong
- Department of Food Science and Agricultural Chemistry, Macdonald Campus McGill University Québec Canada
| | - Salwa Karboune
- Department of Food Science and Agricultural Chemistry, Macdonald Campus McGill University Québec Canada
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49
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Sofo A, Galluzzi A, Zito F. A Modest Suggestion: Baking Using Sourdough - a Sustainable, Slow-Paced, Traditional and Beneficial Remedy against Stress during the Covid-19 Lockdown. HUMAN ECOLOGY: AN INTERDISCIPLINARY JOURNAL 2021; 49:99-105. [PMID: 33612915 PMCID: PMC7880519 DOI: 10.1007/s10745-021-00219-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Affiliation(s)
- Adriano Sofo
- Department of European and Mediterranean Cultures: Architecture, Environment and Cultural Heritage (DiCEM), University of Basilicata, Via Lanera, 20, 75100 Matera, Italy
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50
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Arora K, Ameur H, Polo A, Di Cagno R, Rizzello CG, Gobbetti M. Thirty years of knowledge on sourdough fermentation: A systematic review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2020.12.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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