Please enable it to take advantage of the complete set of features! 2017 Jul;100(7):5188-5194. doi: 10.3168/jds.2017-12607. eCollection 2020. Streptococcus thermophilus and Streptococcus macedonicus are two known species of the genus related to foods, but little information is available for the latter species, introduced quite recently. Please check your email for instructions on resetting your password. ), Bactéries lactiques, de la génétique aux ferments (pp. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, I have read and accept the Wiley Online Library Terms and Conditions of Use. 1984 Oct 25;259(20):12595-601. 1980 Jan 22;19(2):306-15. doi: 10.1021/bi00543a009. The results showed that the intracellular ATP concentration, H+ -ATPase activity, NADH/NAD+ , and NH3 concentrations varied with intracellular pH. Gen Pharmacol. Simultaneous quantification of purine and pyrimidine bases, nucleosides and their degradation products in bovine blood plasma by high performance liquid chromatography tandem mass spectrometry. A novel method for continuous determination of the intracellular pH in bacteria with the Internally conjugated fluorescent probe 5 (and 6‐) ‐Carboxyfluorescein succinimidyl ester. HHS 10.1016/j.chroma.2014.06.065 Front Microbiol. The proto-cooperation between Streptococcus thermophilus and Lactobacillus delbrueckii subsp. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error, (a, b, and c) Amino acids consumption patterns of. Optimal growth conditions were found at pH 6.5 and 40° C for S. thermophilus and pH 5.8 and 44° C for L. bulgaricus. Maximum acidification was obtained at … Qiao Y, Leng C, Liu G, Zhang Y, Lv X, Chen H, Sun J, Feng Z. J Microbiol. The growth kinetics, physiological state, and nutrient requirement profiles of S. thermophilus were analyzed in chemically defined media. This study aimed to evaluate the profiles of Streptococcus thermophilus nutrient requirements to guide the design of media for high cell density culturing. Get the latest research from NIH: https://www.nih.gov/coronavirus. Paris: Tec & Doc Lavoisier. Optimal pH ranges were therefore determined for several lactic acid bacteria, such as Streptococcus thermophilus (pH 6.5), Lactobacillus bulgaricus (pH 5.8 to 6) (5, 22), or Lactococcus lactis subsp. bulgaricus, Lactobacillus acidophilus and Lactobacillus paracasei was studied in a pH-auxostat. Streptococcus thermophilus is a Gram-positive spherical to ovoid nonmotile coccus, 0.7–0.9 μm in diameter, occurring in pairs and chains, some of which can be very long. Learn more. Unlimited viewing of the article/chapter PDF and any associated supplements and figures. Transcriptomic and proteomic profiling revealed global changes in Streptococcus thermophilus during pH-controlled batch fermentations. thermophilus, Lactococcus lactis subsp. Finally, a graphic method to predict both final total concentration and final proportion of the two bacteria as a function of pH, temperature and inoculum composition is presented. Journal of Chromatography A, 1356, 197–210. Unlimited viewing of the article PDF and any associated supplements and figures. Keywords: Maximum acidification was obtained at pH values and temperatures higher than the optimal growth conditions. Primary structure of murine major histocompatibility complex alloantigens: amino acid sequence of the amino-terminal one hundred and seventy-three residues of the H-2Kb glycoprotein. The nutrient components with the highest amounts required were Leu and Asp; ascorbic acid and p-amino benzoic acid; K+ and PO4 3- ; and guanine and uracil. cremoris (pH 6.3 to 6.9) . 2020 Jan 21;10:3144. doi: 10.3389/fmicb.2019.03144. © 2018 The Authors. 2020 May 29;11:1131. doi: 10.3389/fmicb.2020.01131. Streptococcus thermophilus does not hydrolyze arginine. Use the link below to share a full-text version of this article with your friends and colleagues. Front Microbiol. Optimum growth temperatures ranged from 35 C to 42 C for S.thermophilus strains, averaging 38.6. Lactose, Glu, Asp, His, Trp, Cys, Val, Arg, Phe, Ala, Ser, Thr, Tyr, folate and cobalamin, calcium pantothenate, ascorbic acid, thiamine, biotin, p-amino benzoic acid, vitamin B6 , K+ , Mg2+ , guanine, xanthine, and PO4 3- had the highest bioavailability from midexponential to late-exponential phase. We use cookies to help provide and enhance our service and tailor content and ads. -. The growth kinetics, physiological state, and nutrient requirement profiles of S. thermophilus were analyzed in chemically defined media. PLoS One, 5, e11935.10.1371/journal.pone.0011935 2019 Sep;57(9):769-780. doi: 10.1007/s12275-019-8604-y. FEMS Microbiology Reviews, 12, 253–272. Qiao Y, Liu G, Lv X, Fan X, Zhang Y, Meng L, Ai M, Feng Z.  |  The present results will help to formulate complex media for high cell density cultivation and provide the theoretical basis for S. thermophilus feeding strategies. (2014). Optimum growth temperatures were determined for nine strains of Streptococcus thermophilus and ten strains of Lactobacillus bulgaricus, all commercial yogurt or yogurt starter isolates. The bacterium has an optimum growth temperature of 40–45 °C, a minimum of 20–25 °C, and a maximum near 47–50 °C. Epub 2017 May 10. S. thermophilus; amino acid; inosine; purine; pyrimidine; requirement profiles; vitamin. Liu G, Qiao Y, Zhang Y, Leng C, Chen H, Sun J, Fan X, Li A, Feng Z. This site needs JavaScript to work properly. Please log in. Streptococcus thermophilus and Streptococcus macedonicus are two known species of the genus related to foods, but little information is available for the latter species, introduced quite recently. View the article PDF and any associated supplements and figures for a period of 48 hours. We compared the growth kinetics over 24 h of nine S. thermophilus and eight S. macedonicus strains, isolated from various dairy environments, at three different pH values, namely 7.0, 6.0 and 5.5. Short communication: Evaluation of amino acid consumption and necessary profiles of Streptococcus thermophilus T1C2 in controlled pH batch fermentations. Takeuchi H, Araki Y, Emaduddin M, Zhang W, Han XY, Salunga TL, Wong SM. We compared the growth kinetics over 24 h of … Béal C., Marin M., Fontaine E., Fonseca F., & Obert J. P. (2008). Short communication: Nutrient consumption patterns of Lactobacillus acidophilus KLDS 1.0738 in controlled pH batch fermentations. In this study, different nutrient components were primarily used at different phase. The effects of pH, temperature, and inoculum composition on Streptococcus thermophilus 404 and Lactobacillus bulgaricus 398 mixed cultures were studied. Aims: To study the effect of different fermentation conditions and to model the effect of temperature and pH on different biokinetic parameters of bacterial growth and exopolysaccharides (EPS) production of Streptococcus thermophilus ST 111 in milk-based medium. -. and you may need to create a new Wiley Online Library account. Le streptocoque thermophile (ou Streptococcus thermophilus [1], [2]) est une bactérie alimentaire, thermophile (optimum de croissance à 43 °C), présente seulement dans la fermentation du lait, où elle est notamment utilisée en association avec la bactérie Lactobacillus delbrueckii subsp. Working off-campus? Hong C, Shuang Z, Miao X, Min Z, Xin-Tong L, Hong-Ling D, Chun-Li M, Zhen F. J Dairy Sci. In contrast, the independent growth of the two species in milk leads to a slower growth rate and a smaller population size. Our results report significantly shorter lag phases and faster growth rates at all the pH conditions tested for S. macedonicus strains, thus indicating this species as a possible interesting substitute for S. thermophilus in selected food productions. Get the latest public health information from CDC: https://www.coronavirus.gov. Met, Leu, Ile, Asn, Glu, Lys, Pro, Gly, riboflavin, nicotinic acid, adenine, uracil, inosine, and Ca2+ had the highest bioavailability from late-lag to midexponential phase. Streptococci are widely used as starter cultures to rapidly lower food pH, thus inhibiting the development of deleterious and pathogenic microbes.  |  Buckenhüskes H. J. The full text of this article hosted at iucr.org is unavailable due to technical difficulties. © 2018 Elsevier Ltd. All rights reserved. (a) Growth curve ( ) and Na OH consumption profile ( ) of…, Changes in amino acids concentrations in ST ‐ MZ ‐2 with culture time.…, (a, b, and c) Amino acids consumption patterns of ST ‐ MZ ‐2…, (a) Changes in lactose concentration ( ) with culture time. Streptococci are widely used as starter cultures to rapidly lower food pH, thus inhibiting the development of deleterious and pathogenic microbes. Production et conservation des ferments lactiques et probiotiques In Corrieu G., editor; , & Luquet F. M., editor. Applied and Environment Microbiology, 62, 178–183. NCI CPTC Antibody Characterization Program, Barton M. D., Delneri D., Oliver S. G., Rattray M., & Bergman C. M. (2010). By continuing you agree to the use of cookies. Optimal growth conditions were found at pH 6.5 and 40 C for S. thermophilus and pH 5.8 and 44 C for L. bulgaricus. The growth of Streptococcus salivarius subsp. If you do not receive an email within 10 minutes, your email address may not be registered, Breeuwer P., Drocourt J., Rombouts F. M., & Abee T. (1996). The nutrient components with the largest required ratios were Arg, His, and Met; folic acid, cyanocobalamine, biotin, and nicotinic acid; Ca2+ and Mg2+ ; and guanine and uracil.

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