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Zheng H, Jiang J, Huang C, Wang X, Hu P. Effect of sugar content on characteristic flavour formation of tomato sour soup fermented by Lacticaseibacillus casei H1 based on non-targeted metabolomics analysis. Food Chem X 2024; 21:101116. [PMID: 38282824 PMCID: PMC10818199 DOI: 10.1016/j.fochx.2024.101116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/24/2023] [Accepted: 01/01/2024] [Indexed: 01/30/2024] Open
Abstract
To reveal the formation mechanism of the characteristic flavour of tomato sour soup (TSS), metabolomics based on UHPLC-Q-TOF/MS was used to investigate the effect of sugar addition on TSS metabolomics during fermentation with Lacticaseibacillus casei H1. A total of 254 differentially abundant metabolites were identified in the 10% added-sugar group, which mainly belonged to organic acids and derivatives, fatty acyls, and organic oxygen compounds. Metabolic pathway analysis revealed that alanine aspartate and glutamate metabolism, valine leucine and isoleucine metabolism and butanoate metabolism were the potential pathways for the flavour of TSS formation. Lactic acid, acetic acid, Ala, Glu and Asp significantly contributed to the acidity and umami formation of TSS. This study showed that sugar regulation played an important role in the formation of the characteristic TSS flavour during fermentation, providing important support for understanding the formation mechanism of organic acids as the main characteristic flavour of TSS.
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Affiliation(s)
- Huaisheng Zheng
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Jingzhu Jiang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Chaobing Huang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Xiaoyu Wang
- College of Life Science, Guizhou University, Guiyang 550025, China
| | - Ping Hu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
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Free Amino Acids Profile and Expression Analysis of Core Genes Involved in Branched-Chain Amino Acids Metabolism during Fruit Development of Longan ( Dimocarpus longan Lour.) Cultivars with Different Aroma Types. BIOLOGY 2021; 10:biology10080807. [PMID: 34440040 PMCID: PMC8389590 DOI: 10.3390/biology10080807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/15/2021] [Accepted: 08/18/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary In this study, three longan cultivars, including non-aroma types ‘Shixia’ (SX), ‘Lidongben’ (LDB), and strong aroma type ‘Xiangcui’ (XC), were selected to analyze free amino acids (FAAs) variations at six distinct growth stages. The genome-wide identification and expression analysis of genes related to the branched-chain amino acids (BCAA) synthesis pathway were carried out. Results showed that thirty-six FAAs were identified, which increased drastically with fruit development until ripening. During the period of rapid fruit expansion, the aroma of XC changed from light to strong, and the contents of L-alanine and L-leucine were significantly higher than those of SX and LDB. The content of Leu was negatively correlated with the expression of DilBCAT1, -6, and -9 in three varieties, but positively correlated with DilBCAT16, indicating that these four genes may be responsible for the different synthesis and degradation of Leu among cultivars. Abstract Amino acids are important component of fruit nutrition and quality. In this study, three longan cultivars, including non-aroma types ‘Shixia’ (SX), ‘Lidongben’ (LDB), and strong aroma type ‘Xiangcui’ (XC), were selected to analyze free amino acids (FAAs) variations at six distinct growth stages (S1–S6). The genome-wide identification and expression analysis of genes related to the branched-chain amino acids (BCAA) synthesis pathway were carried out. Results showed that 36 FAAs were identified, and the total FAAs content ranged from 2601.0 to 9073.5 mg/kg, which increased drastically with fruit development until ripening. L-glutamic acid (Glu), L-alanine (Ala), L-arginine (Arg), γ-Aminobutyric acid (GABA), L-aspartic acid (Asp), L-leucine (Leu), hydroxyl-proline (Hypro), and L-serine (Ser) were the predominant FAAs (1619.9–7213.9 mg/kg) in pulp, accounting for 62.28–92.05% of the total amino acids. During the period of rapid fruit expansion (S2–S4), the aroma of XC changed from light to strong, and the contents of L-alanine (Ala) and L-leucine (Leu) were significantly higher than those of SX and LDB. Furthermore, a total of two 2-isopropyl malate synthase (IPMS), two 3-isopropyl malate dehydrogenase (IPMD), and 16 BCAA transferase (BCAT) genes were identified. The expression levels of DilBCAT1, -6, and -9 genes in XC were significantly higher than those in SX and LDB, while DilBCAT16 in XC was lower. The content of Leu was negatively correlated with the expression of DilBCAT1, -6, and -9 in three varieties, but positively correlated with DilBCAT16, indicating that these four genes may be responsible for the different synthesis and degradation of Leu among cultivars.
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Wang Y, Wu J, Lv M, Shao Z, Hungwe M, Wang J, Bai X, Xie J, Wang Y, Geng W. Metabolism Characteristics of Lactic Acid Bacteria and the Expanding Applications in Food Industry. Front Bioeng Biotechnol 2021; 9:612285. [PMID: 34055755 PMCID: PMC8149962 DOI: 10.3389/fbioe.2021.612285] [Citation(s) in RCA: 185] [Impact Index Per Article: 61.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 04/16/2021] [Indexed: 12/31/2022] Open
Abstract
Lactic acid bacteria are a kind of microorganisms that can ferment carbohydrates to produce lactic acid, and are currently widely used in the fermented food industry. In recent years, with the excellent role of lactic acid bacteria in the food industry and probiotic functions, their microbial metabolic characteristics have also attracted more attention. Lactic acid bacteria can decompose macromolecular substances in food, including degradation of indigestible polysaccharides and transformation of undesirable flavor substances. Meanwhile, they can also produce a variety of products including short-chain fatty acids, amines, bacteriocins, vitamins and exopolysaccharides during metabolism. Based on the above-mentioned metabolic characteristics, lactic acid bacteria have shown a variety of expanded applications in the food industry. On the one hand, they are used to improve the flavor of fermented foods, increase the nutrition of foods, reduce harmful substances, increase shelf life, and so on. On the other hand, they can be used as probiotics to promote health in the body. This article reviews and prospects the important metabolites in the expanded application of lactic acid bacteria from the perspective of bioengineering and biotechnology.
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Affiliation(s)
- Yaqi Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Jiangtao Wu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Mengxin Lv
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Zhen Shao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Meluleki Hungwe
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Jinju Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Xiaojia Bai
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Jingli Xie
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Yanping Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Weitao Geng
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
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Uymaz B, Akçelik N, Yüksel Z. Physicochemical and Microbiological Characterization of Protected Designation of Origin Ezine Cheese: Assessment of Non-starter Lactic Acid Bacterial Diversity with Antimicrobial Activity. Food Sci Anim Resour 2019; 39:804-819. [PMID: 31728449 PMCID: PMC6837903 DOI: 10.5851/kosfa.2019.e71] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/20/2019] [Accepted: 10/07/2019] [Indexed: 12/14/2022] Open
Abstract
Ezine cheese is a non-starter and long-ripened cheese produced in the Mount of
Ida region of Çanakkale, Turkey, with a protected designation of origin
status. Non-starter lactic acid bacteria (NSLAB) have a substantial effect on
the quality and final sensorial characteristics of long-ripened cheeses. The
dominance of NSLAB can be attributed to their high tolerance to the hostile
environment in cheese during ripening relative to many other microbial groups
and to its ability to inhibit undesired microorganisms. These qualities promote
the microbiological stability of long-ripened cheeses. In this study, 144
samples were collected from three dairies during the ripening period of Ezine
cheese. Physicochemical composition and NSLAB identification analyses were
performed using both conventional and molecular methods. According to the
results of a 16S rRNA gene sequence analysis, 13 different species belonging to
seven genera were identified. Enterococcus faecium
(38.42%) and E. faecalis (18.94%) were dominant
species during the cheese manufacturing process, surviving 12 months of ripening
together with Lactobacillus paracasei (13.68%) and
Lb. plantarum (11.05%). The results indicate that
NSLAB contributes to the microbiological stability of Ezine cheese over 12
months of ripening. The isolation of NSLAB with antimicrobial activity,
potential bacteriocin producers, yielded defined collections of natural NSLAB
isolates from Ezine cheese that can be used to generate specific starter
cultures for the production of Ezine cheese (PDO).
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Affiliation(s)
- Başar Uymaz
- Department of Food Technology, Bayramiç Vocational College, Çanakkale Onsekiz Mart University, Bayramiç, 17700 Çanakkale, Turkey
| | - Nefise Akçelik
- Biotechnology Institute, Ankara University, Tandoğan Campus, 06110 Ankara, Turkey
| | - Zerrin Yüksel
- Department of Food Technology, Bayramiç Vocational College, Çanakkale Onsekiz Mart University, Bayramiç, 17700 Çanakkale, Turkey
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5
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Technological aspects, health benefits, and sensory properties of probiotic cheese. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1154-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Cui S, Zhao N, Lu W, Zhao F, Zheng S, Wang W, Chen W. Effect of different Lactobacillus species on volatile and nonvolatile flavor compounds in juices fermentation. Food Sci Nutr 2019; 7:2214-2223. [PMID: 31367350 PMCID: PMC6657747 DOI: 10.1002/fsn3.1010] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/12/2019] [Accepted: 02/20/2019] [Indexed: 02/06/2023] Open
Abstract
Lactobacillus is the dominant genus during fruit and vegetable juices (FVFs) fermentation, which are the key factors for taste and flavor. This study was performed to investigate the effects of different Lactobacillus spp. on profile of volatile flavor compounds and nonvolatile taste compounds in FVFs fermentation. A total of 14 compounds were identified as discriminant flavor and taste markers for fermented FVFs via gas chromatography-mass spectrometry (GC-MS)-based multimarker profiling. The PCA score plot and PLS-DA showed that different FVFs were divided into three distinct types, suggesting that the different species significantly affect the volatile and nonvolatile compounds profiles of FVFs. Lactobacillus casei and Lactobacillus rhamnosus (Type A FVFs) might make a greater contribution to the umami taste. Lactobacillus plantarum and Lactobacillus acidophilus (Type B FVFs) make a greater contribution to the sour taste. Lactobacillus fermentum may be an potential critical contributor to produce volatile compounds. We reveal that different Lactobacillus strains play different roles in modifying these compounds related to flavor and taste features.
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Affiliation(s)
- Shumao Cui
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Nan Zhao
- Institute of Agro‐Products Processing Science and TechnologySichuan Academy of Agriculture SciencesChengduChina
| | - Wenwei Lu
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Fang Zhao
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | | | | | - Wei Chen
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
- National Engineering Research Center for Functional FoodJiangnan UniversityWuxiChina
- Beijing Innovation Centre of Food Nutrition and Human HealthBeijing Technology and Business University (BTBU)BeijingChina
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7
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Influence of the culture preparation and the addition of an adjunct culture on the ripening profiles of hard cheese. J DAIRY RES 2019; 86:120-128. [DOI: 10.1017/s0022029918000870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractThe aim of this work was to evaluate the impact of two factors on the ripening profiles of hard cooked cheeses: (F1) the growth medium for the primary and adjunct cultures, constituted by autochthonous strains: Lactobacillus helveticus 209 (Lh209) and Lactobacillus paracasei 90 (Lp90), respectively, and (F2) the addition of L. paracasei Lp90 as adjunct culture. Four types of cheeses were made: W and M cheeses in which only Lh209 was added after its growth in whey and MRS, respectively; Wa and Ma cheeses in which both strains (Lh209 and Lp90) were added after their growth in whey and MRS, respectively. Physicochemical and microbial composition, proteolysis and profiles of organic acids and volatile compounds were analyzed. According to the methodology of the cultures preparation, W and Wa cheeses showed a higher level of secondary proteolysis and lower level of primary proteolysis (P < 0·05), lower content of citric and acetic acids and higher amount of propionic acid (P < 0·05), in comparison with M and Ma cheeses. The incorporation of Lp90 increased the secondary proteolysis (P < 0·05), decreased the citric acid (P < 0·05), and increased the propionic acid only when was added after their growth in whey (P < 0·05). Both factors significantly modified the percentages of the volatile compounds grouped in chemical families; in addition, for the half of the compounds detected, significant differences were found. Based on the obtained results, the use of Lp90 as an adjunct in hard cooked cheeses, and the preincubation of the cultures in whey are strategies to accelerate the cheese ripening and to enhance the production of some characteristic compounds of this type of cheeses, such as propan-2-one, hexan-2-one, 2- and 3-methyl butanal, heptan-2-ol, acetic and 3-methylbutanoic acids and 3-hydroxy butan-2-one.
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Stefanovic E, Kilcawley KN, Rea MC, Fitzgerald GF, McAuliffe O. Genetic, enzymatic and metabolite profiling of the Lactobacillus casei group reveals strain biodiversity and potential applications for flavour diversification. J Appl Microbiol 2017; 122:1245-1261. [PMID: 28199757 DOI: 10.1111/jam.13420] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/06/2017] [Accepted: 02/08/2017] [Indexed: 01/22/2023]
Abstract
AIMS The Lactobacillus casei group represents a widely explored group of lactic acid bacteria, characterized by a high level of biodiversity. In this study, the genetic and phenotypic diversity of a collection of more than 300 isolates of the Lact. casei group and their potential to produce volatile metabolites important for flavour development in dairy products, was examined. METHODS AND RESULTS Following confirmation of species by 16S rRNA PCR, the diversity of the isolates was determined by pulsed-field gel electrophoresis. The activities of enzymes involved in the proteolytic cascade were assessed and significant differences among the strains were observed. Ten strains were chosen based on the results of their enzymes activities and they were analysed for their ability to produce volatiles in media with increased concentrations of a representative aromatic, branched chain and sulphur amino acid. Volatiles were assessed using gas chromatography coupled with mass spectrometry. Strain-dependent differences in the range and type of volatiles produced were evident. CONCLUSIONS Strains of the Lact. casei group are characterized by genetic and metabolic diversity which supports variability in volatile production. SIGNIFICANCE AND IMPACT OF THE STUDY This study provides a screening approach for the knowledge-based selection of strains potentially enabling flavour diversification in fermented dairy products.
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Affiliation(s)
- E Stefanovic
- Department of Food Bioscience, Teagasc Food Research Centre, Moorepark, Fermoy, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
| | - K N Kilcawley
- Department of Food Bioscience, Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - M C Rea
- Department of Food Bioscience, Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - G F Fitzgerald
- School of Microbiology, University College Cork, Cork, Ireland
| | - O McAuliffe
- Department of Food Bioscience, Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
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9
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Lee SM, Oh J, Hurh BS, Jeong GH, Shin YK, Kim YS. Volatile Compounds Produced by Lactobacillus paracasei During Oat Fermentation. J Food Sci 2016; 81:C2915-C2922. [PMID: 27925257 DOI: 10.1111/1750-3841.13547] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 09/26/2016] [Accepted: 10/03/2016] [Indexed: 12/20/2022]
Abstract
This study investigated the profiles of volatile compounds produced by Lactobacillus paracasei during oat fermentation using gas chromatography-mass spectrometry coupled with headspace solid-phase microextraction method. A total of 60 compounds, including acids, alcohols, aldehydes, esters, furan derivatives, hydrocarbons, ketones, sulfur-containing compounds, terpenes, and other compounds, were identified in fermented oat. Lipid oxidation products such as 2-pentylfuran, 1-octen-3-ol, hexanal, and nonanal were found to be the main contributors to oat samples fermented by L. paracasei with the level of 2-pentylfuran being the highest. In addition, the contents of ketones, alcohols, acids, and furan derivatives in the oat samples consistently increased with the fermentation time. On the other hand, the contents of degradation products of amino acids, such as 3-methylbutanal, benzaldehyde, acetophenone, dimethyl sulfide, and dimethyl disulfide, decreased in oat samples during fermentation. Principal component analysis (PCA) was applied to discriminate the fermented oat samples according to different fermentation times. The fermented oats were clearly differentiated on PCA plots. The initial fermentation stage was mainly affected by aldehydes, whereas the later samples of fermented oats were strongly associated with acids, alcohols, furan derivatives, and ketones. The application of PCA to data of the volatile profiles revealed that the oat samples fermented by L. paracasei could be distinguished according to fermentation time.
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Affiliation(s)
- Sang Mi Lee
- Dept. of Food Science and Engineering, Ewha Womans Univ, 11-1 Daehyun-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Jieun Oh
- Dept. of Food Science and Engineering, Ewha Womans Univ, 11-1 Daehyun-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Byung-Serk Hurh
- Sempio Foods Company R&D Center, Cheongju, 363-954, Republic of Korea
| | - Gwi-Hwa Jeong
- Sempio Foods Company R&D Center, Cheongju, 363-954, Republic of Korea
| | - Young-Keum Shin
- Sempio Foods Company R&D Center, Cheongju, 363-954, Republic of Korea
| | - Young-Suk Kim
- Dept. of Food Science and Engineering, Ewha Womans Univ, 11-1 Daehyun-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea
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Formation of volatile compounds, peptidolysis and carbohydrate fermentation by mesophilic lactobacilli and streptoccocci cultures in a cheese extract. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s13594-016-0291-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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Afzal MI, Ariceaga CCG, Boulahya KA, Jacquot M, Delaunay S, Cailliez-Grimal C. Biosynthesis and role of 3-methylbutanal in cheese by lactic acid bacteria: Major metabolic pathways, enzymes involved, and strategies for control. Crit Rev Food Sci Nutr 2015; 57:399-406. [DOI: 10.1080/10408398.2014.893502] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Biocheese: a food probiotic carrier. BIOMED RESEARCH INTERNATIONAL 2015; 2015:723056. [PMID: 25802862 PMCID: PMC4352748 DOI: 10.1155/2015/723056] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/06/2014] [Accepted: 10/21/2014] [Indexed: 12/18/2022]
Abstract
This review describes some aspects related to the technological barriers encountered in the development and stability of probiotic cheeses. Aspects concerning the viability of probiotic cultures in this matrix are discussed and the potential of cheese as a biofunctional food carrier is analyzed, outlying some points related to health and safety. In general, the manufacture of probiotic cheese should have little change when compared with the elaboration of cheese in the traditional way. The physicochemical and technological parameters influencing the quality of these products have also to be measured so as to obtain a process optimization.
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Ruyssen T, Janssens M, Van Gasse B, Van Laere D, Van der Eecken N, De Meerleer M, Vermeiren L, Van Hoorde K, Martins J, Uyttendaele M, De Vuyst L. Characterisation of Gouda cheeses based on sensory, analytical and high-field 1H nuclear magnetic resonance spectroscopy determinations: Effect of adjunct cultures and brine composition on sodium-reduced Gouda cheese. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2013.04.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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14
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Peralta GH, Wolf IV, Bergamini CV, Perotti MC, Hynes ER. Evaluation of volatile compounds produced by Lactobacillus paracasei I90 in a hard-cooked cheese model using solid-phase microextraction. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s13594-013-0143-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Challenges in quantitative analysis of aroma compounds in cheeses with different fat content and maturity level. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2012.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Karimi R, Sohrabvandi S, Mortazavian AM. Review Article: Sensory Characteristics of Probiotic Cheese. Compr Rev Food Sci Food Saf 2012. [DOI: 10.1111/j.1541-4337.2012.00194.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Comparison of different IlvE aminotransferases in Lactobacillus sakei and investigation of their contribution to aroma formation from branched chain amino acids. Food Microbiol 2012; 29:205-14. [DOI: 10.1016/j.fm.2011.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 07/13/2011] [Accepted: 07/15/2011] [Indexed: 11/21/2022]
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18
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Selective enumeration of probiotic microorganisms in cheese. Food Microbiol 2012; 29:1-9. [DOI: 10.1016/j.fm.2011.08.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 08/02/2011] [Accepted: 08/07/2011] [Indexed: 11/19/2022]
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Bezeková J, Lavová M, Kročko M, Čanigová M. Selected properties of lactic acid bacteria isolated from raw cow's milk. POTRAVINARSTVO 2012. [DOI: 10.5219/177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
For the identification of lactic acid bacteria derived from raw cow's milk, 151 colonies were isolated. The grow conditions of lactic acid bacteria were at temperature 37 °C for 3 days on MRS medium. Based on microscopical preparation, negative catalase and Gram-positive test were 81 isolates confirmed as genus Lactobacillus. Out of these, 9 isolates were evaluated for acidifying activity in UHT milk at 25 °C, 30 °C and 37 °C at regular intervals during 24 hours. The average count of NSLAB lactobacilli in raw cow's milk reached the value 1.54.104 KTJ.ml-1. It was found that all tested strains of lactobacilli did not cause significant changes of titratable acidity in milk at 25 °C and 30 °C. Only one strain significantly improved the titratable acidity of milk at 37 °C after 24 hours. The acidity reached the value from 7.5 °SH to 41.9 °SH. This strain was confirmed by PCR method as Lactobacillus helveticus.
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Karimi R, Mortazavian AM, Da Cruz AG. Viability of probiotic microorganisms in cheese during production and storage: a review. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s13594-011-0005-x] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Milesi MM, Wolf IV, Bergamini CV, Hynes ER. Two strains of nonstarter lactobacilli increased the production of flavor compounds in soft cheeses. J Dairy Sci 2011; 93:5020-31. [PMID: 20965316 DOI: 10.3168/jds.2009-3043] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Accepted: 07/25/2010] [Indexed: 11/19/2022]
Abstract
The contribution to flavor generation and secondary proteolysis of 2 strains of mesophilic lactobacilli isolated from cheese was studied. Miniature soft cheeses (200 g) were produced with or without the inclusion of a culture of Lactobacillus plantarum I91 or Lactobacillus casei I90 in the starter composed of Streptococcus thermophilus. During ripening, cheeses containing the added lactobacilli showed an increased content of total free amino acids, but this increase was only significant in cheeses with Lb. plantarum I91. In addition, free amino acid profiles were modified by selective increases of some amino acids, such as Asp, Ser, Arg, Leu, and Phe. Cheeses inoculated with Lb. plantarum I91 or Lb. casei I90 were also characterized by a significantly higher concentration of diacetyl, a key flavor compound, and an increased content of acetoin. Results suggest an increase in the catabolism of either citrate or aspartate, with the production of the derived aroma compounds. Overall, aspartate content increased in both lactobacilli-added cheeses, whereas citrate was more or less constant, suggesting that aspartate could be the source of increased diacetyl and acetoin. A triangle aroma test showed that the addition of the lactobacilli strains significantly changed the sensory attributes of cheeses. At least 11 of 12 panelists commented that the aroma of cheeses with adjuncts was more buttery than that of control cheeses, which is desirable in most soft cheeses. Both Lb. plantarum I91 and Lb. casei I90 performed well as adjunct cultures by influencing cheese aroma development and cheese proteolysis.
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Affiliation(s)
- M M Milesi
- Instituto de Lactología Industrial, Universidad Nacional del Litoral-Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
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Granato D, Branco GF, Cruz AG, Faria JDAF, Shah NP. Probiotic Dairy Products as Functional Foods. Compr Rev Food Sci Food Saf 2010; 9:455-470. [DOI: 10.1111/j.1541-4337.2010.00120.x] [Citation(s) in RCA: 192] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Milesi MM, Vinderola G, Sabbag N, Meinardi CA, Hynes E. Influence on cheese proteolysis and sensory characteristics of non-starter lactobacilli strains with probiotic potential. Food Res Int 2009. [DOI: 10.1016/j.foodres.2009.06.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bergamini C, Hynes E, Candioti M, Zalazar C. Multivariate analysis of proteolysis patterns differentiated the impact of six strains of probiotic bacteria on a semi-hard cheese. J Dairy Sci 2009; 92:2455-67. [DOI: 10.3168/jds.2008-1794] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Effect of mesophilic lactobacilli and enterococci adjunct cultures on the final characteristics of a microfiltered milk Swiss-type cheese. Food Microbiol 2009; 26:183-91. [DOI: 10.1016/j.fm.2008.09.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2008] [Revised: 09/08/2008] [Accepted: 09/10/2008] [Indexed: 11/20/2022]
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26
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Biochemistry of non-starter lactic acid bacteria isolate Lactobacillus casei GCRL163: Production of metabolites by stationary-phase cultures. Int Dairy J 2009. [DOI: 10.1016/j.idairyj.2008.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Briggiler-Marcó M, Capra ML, Quiberoni A, Vinderola G, Reinheimer JA, Hynes E. Nonstarter Lactobacillus strains as adjunct cultures for cheese making: in vitro characterization and performance in two model cheeses. J Dairy Sci 2008; 90:4532-42. [PMID: 17881674 DOI: 10.3168/jds.2007-0180] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Nonstarter lactic acid bacteria are the main uncontrolled factor in today's industrial cheese making and may be the cause of quality inconsistencies and defects in cheeses. In this context, adjunct cultures of selected lactobacilli from nonstarter lactic acid bacteria origin appear as the best alternative to indirectly control cheese biota. The objective of the present work was to study the technological properties of Lactobacillus strains isolated from cheese by in vitro and in situ assays. Milk acidification kinetics and proteolytic and acidifying activities were assessed, and peptide mapping of trichloroacetic acid 8% soluble fraction of milk cultures was performed by liquid chromatography. In addition, the tolerance to salts (NaCl and KCl) and the phage-resistance were investigated. Four strains were selected for testing as adjunct cultures in cheese making experiments at pilot plant scale. In in vitro assays, most strains acidified milk slowly and showed weak to moderate proteolytic activity. Fast strains decreased milk pH to 4.5 in 8 h, and continued acidification to 3.5 in 12 h or more. This group consisted mostly of Lactobacillus plantarum and Lactobacillus rhamnosus strains. Approximately one-third of the slow strains, which comprised mainly Lactobacillus casei, Lactobacillus fermentum, and Lactobacillus curvatus, were capable to grow when milk was supplemented with glucose and casein hydrolysate. Peptide maps were similar to those of lactic acid bacteria considered to have a moderate proteolytic activity. Most strains showed salt tolerance and resistance to specific phages. The Lactobacillus strains selected as adjunct cultures for cheese making experiments reached 10(8) cfu/g in soft cheeses at 7 d of ripening, whereas they reached 10(9) cfu/g in semihard cheeses after 15 d of ripening. In both cheese varieties, the adjunct culture population remained at high counts during all ripening, in some cases overcoming or equaling primary starter. Overall, proximate composition of cheeses with and without added lactobacilli did not differ; however, some of the tested strains continued acidifying during ripening, which was mainly noticed in soft cheeses and affected overall quality of the products. The lactobacilli strains with low acidifying activity showed appropriate technological characteristics for their use as adjunct cultures in soft and semihard cheeses.
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Affiliation(s)
- M Briggiler-Marcó
- Instituto de Lactología Industrial Facultad de Ingeniería Química, Universidad Nacional del Litoral-CONICET Santiago del Estero 2829, S3000AOM Santa Fe, Argentina
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Effect of wild strains used as starter cultures and adjunct cultures on the volatile compounds of the Pecorino Siciliano cheese. Int J Food Microbiol 2008; 122:269-78. [DOI: 10.1016/j.ijfoodmicro.2007.12.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Accepted: 12/16/2007] [Indexed: 11/23/2022]
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29
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Skeie S, Kieronczyk A, Eidet S, Reitan M, Olsen K, Østlie H. Interaction between starter bacteria and adjunct Lactobacillus plantarum INF15D on the degradation of citrate, asparagine and aspartate in a washed-curd cheese. Int Dairy J 2008. [DOI: 10.1016/j.idairyj.2007.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ugarte MB, Guglielmotti D, Giraffa G, Reinheimer J, Hynes E. Nonstarter lactobacilli isolated from soft and semihard Argentinean cheeses: genetic characterization and resistance to biological barriers. J Food Prot 2006; 69:2983-91. [PMID: 17186668 DOI: 10.4315/0362-028x-69.12.2983] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Nonstarter lactic acid bacteria isolated from Argentinean cheeses were identified and characterized by focusing on their resistance to biological barriers, along with other physiological features of potential interest, in the search for future probiotic organisms. Lactobacilli were enumerated and isolated from semihard and soft cheeses made with multistrain Streptococcus thermophilus starters. Lactobacilli counts in 1-week-old cheeses were between 10(5) and 10(7) CFU/g and then reached 10(7) CFU/ g in all 1-month samples, while streptococci were always above 10(9) CFU/g. A total number of 22 lactobacilli isolates were retained, identified, and characterized by in vitro tests. Species identity was determined by carbohydrate metabolism and species-specific PCR assays. Genetic diversity was explored by random amplified polymorphic DNA (RAPD) PCR analysis. The Lactobacillus strains were assigned to the species L. casei, L. plantarum, L. rhamnosus, L. curvatus, L. fermentum, and L. perolens. All the strains studied tolerated 25 ppm of lysozyme, and most of them showed resistance to 0.3% bile. After incubation in gastric solution (pH 2.0), counts decreased by several log units, ranging from 3.2 to 7.0. The strains were able to grow in the presence of bile salts, but only three isolates were capable of deconjugation. The nonstarter lactobacilli that were assayed fermented the prebiotic substrates (especially lactulose and inulin). Some strains showed high cell hydrophobicity and beta-galactosidase activity, as well as inhibitory activity against pathogenic bacteria. It was concluded that most of the lactobacilli isolated in this study demonstrated resistance to biological barriers and physiological characteristics compatible with probiotic properties, which make them suitable for further research in in vivo studies aimed at identifying new probiotic organisms.
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Affiliation(s)
- Mariana Bude Ugarte
- Instituto de Lactología Industrial (INLAIN), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, S3000AOM Santa Fe, Argentina
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Abstract
Microbial catabolism of amino acids produces flavour compounds of importance for foods such as cheese, wine and fermented sausages. Lactic acid bacteria are equipped with enzyme systems for using the amino acids in their metabolism and are useful for flavour formation of foods. Branched-chain amino acids (Leu, Ile, Val) are converted into compounds contributing to malty, fruity and sweaty flavours; catabolism of aromatic amino acids (Phe, Tyr, Trp) produce floral, chemical and faecal flavours; aspartic acid (Asp) is catabolised into buttery flavours and sulphuric amino acids (Met, Cys) are transferred into compounds contributing to boiled cabbage, meaty and garlic flavours.
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Affiliation(s)
- Ylva Ardö
- Department of Food Science, Centre for Advanced Food Studies, The Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark.
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