Effects of beef extract desicxant concentration on glucansucrase‐production of L. mesenteroides DRP105. Afterwards, effects of the three main factors on glucansucrase activity were further investigated by central composite design, and the optimum composition was sucrose 35.74 g L−1, sodium acetate 6.46 g L−1 and initial pH 5.90. Leuconostoc species are epiphytic bacteria that are wide spread in the natural environment and play an important role in several industrial and food fermentations.Leuconostoc mesenteroides is a facultative anaerobe requiring complex growth factors and amino acids (Reiter and Oram 1982; Garvie 1986).. "Metabolism of, https://microbewiki.kenyon.edu/index.php?title=Leuconostoc&oldid=55697. Leuconostoc in general is important to fermentation of vegetables. Use the link below to share a full-text version of this article with your friends and colleagues. Optimization, chain conformation and characterization of exopolysaccharide isolated from Leuconostoc mesenteroides DRP105. The DNA amplicons were separated on a 5% acrylamide gel and compared with a 1-kb ladder (Gibco-BRL). Addition ofeither 160 mMsodium acetate or 160 mM sodium lactate decreased the ApH but did not collapse the pHgradient ofL. Front Microbiol. In this study, it was shown that L. fallax strains behave mostly like MDC−L. Lane 1, W. paramesenteroides; lane 2, L. citreum; lane 3, L. lactis; lane 4, L. mesenteroides subsp. This site needs JavaScript to work properly. Leuconostoc requires rich, complex media (nicotinic acid, thiamin, biotin, and pantothenic acid or one of its derivatives). Growth in cabbage juice.The growth of L. fallax strains and the growth of L. mesenteroides strains in cabbage juice were compared. Leuconostoc species are native to plants. Strain DRP2-19 was detected to produce high yield of glucansucrase in MRS broth, which was identified to be Leuconostoc mesenteroides. Experimental design and results of model validation. Working off-campus? Figure S5. 1994. Range of different factors studied in the Plackett‐Burman design, Table S2. Effect of storage. Optimum results showed that glucansucrase activity was increased to 6.26 ± 0.09 U mL−1 in 24 h fermentation, 33.19% higher than before. Among them, strain DRP105 was detected to produce highest yield of glucansucrase in MRS broth, which was identified to be Leuconostoc mesenteroides. doi: 10.1111/j.1750-3841.2010.02030.x. Knowledge of microbial ecology in vegetable fermentations has been improved by the emergence of molecular identification and typing methods. Figure S11. All of the L. fallax strains were unable to use all of the malic acid available, while the MDC+L. Acids were analyzed by HPLC by using an Aminex HPX 87-H column (Bio-Rad) associated with a UV detector (λ = 210 nm). If you have previously obtained access with your personal account, The final pH of cabbage juice fermentation was 3.6, and the main fermentation end products were lactic acid, acetic acid, and mannitol for both species. Based on Plackett–Burman Experiment, sucrose, sodium acetate and initial pH were found to be the most significant factors for glucansucrase production of L. mesenteroidesDRP105. The final pH values ranged from 3.58 to 3.62 for both species. cremoris; lane 6, L. mesenteroides subsp. Excess brine generated is a waste product with high levels of organic material (BOD) and nonbiodegradable NaCl. We acknowledge Janet Hayes for providing bacterial strains and cabbage juice; Roger Thompson for performing the HPLC analysis; Martin Kullen and Eric Altermann for helpful discussions; and Olivia McAuliffe, Michael Callanan, and Sophia Kathariou for reviewing the manuscript. mesenteroides, whereas L. fallax and MDC−L. Members of Leuconstoc spp. Learn more. The brine samples were plated on MRS agar (Difco Laboratories, Detroit, Mich.) and incubated aerobically at 30°C for 20 h. Forty colonies were randomly isolated and screened for bacteriophage sensitivity. Journal of Microbiology & Biology Education, Microbiology and Molecular Biology Reviews. Figure S13. A total of fifty‐six strains of lactic acid bacteria isolated from Chinese sauerkraut juice from Shenyang were screened for glucansucrase production. 2020 Jul 25;11(8):471. doi: 10.3390/insects11080471. mesenteroides strains for cabbage juice fermentation. International Journal of Biological Macromolecules. 2). Effects of sucrose concentration on glucansucrase‐production of L. mesenteroides DRP105. However, L. fallax differed in the amount of mannitol produced. Epub 2006 Sep 12. Most L. mesenteroides strains exhibit the malolactic reaction phenotype (15, 18) and can also produce small amounts of succinic acid (around 3 mM). Figure S8. Figure S10. Figure S2. Figure S10. The levels of similarity of the fermentation patterns of the other Leuconostoc type strains to the patterns in the database ranged from 53 to 97%. mesenteroides and Ln. Thank you for sharing this Applied and Environmental Microbiology article. Unlimited viewing of the article/chapter PDF and any associated supplements and figures. Figure S14. Production, Optimization and Partial Characterization of Bacterial Cellulose from Gluconacetobacter xylinus TJU-D2. The cabbage juice fermentation end products were virtually equimolar amounts of acetic and lactic acids for MDC+L. The bacterial strains used in this study are listed in Table 1. 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. USA.gov. Effects of liquid volume on glucansucrase‐production of L. mesenteroides DRP105. Effects of rotation speed on glucansucrase‐production of L. mesenteroides DRP105. Effects of metal ions on glucansucrase‐production of L. mesenteroides DRP105. Leuconostoc can often be found in the wild and is a part of the natural microflora in almost all farming fields. Figure S8. Effects of yeast extract powder concentration on glucansucrase‐production of L. mesenteroides DRP105. Members of Leuconstoc spp. A Genomic Study of Leuconostoc mesenteroides and the Molecular Ecology of Sauerkraut Fermentations F. BREIDT JR. (Thunnel 1995) L. mesenteroides able to convert sugar to mannitol and dextran. Effects of liquid volume on glucansucrase‐production of L. mesenteroides DRP105. Several new species have been described (3, 10, 12, 20, 21, 25, 31, 34, 38), and three major genera, Leuconostoc, Oenococcus, and Weissella, have been identified (7, 11). If you do not receive an email within 10 minutes, your email address may not be registered, Bacteriophages active against L. mesenteroides, L. plantarum, and undefined isolates have been isolated recently from fermenting sauerkraut (42). Optimization and purification of glucansucrase produced by © 2020 Institute of Food Science & Technology, By continuing to browse this site, you agree to its use of cookies as described in our, International Journal of Food Science & Technology, Journal of Food Processing and Preservation, Food and Drink – Good Manufacturing Practice, IFST Advances in Food Science book series, I have read and accept the Wiley Online Library Terms and Conditions of Use. Two L. fallax strains have been isolated from exudates of G. jamesonii (26), and five different strains, divided into three pulsed-field gel electrophoresis patterns, have been isolated from fermented rice cake (20). If you do not receive an email within 10 minutes, your email address may not be registered, The RsaI digestion products of the sauerkraut isolates were all identical (Fig. Characterization of a dextran produced by Leuconostoc pseudomesenteroides XG5 from homemade wine. Effects of carbon sources on glucansucrase‐production of L. mesenteroides DRP105. Application of this technology to commercial sauerkraut production could improve the uniformity of fermentations and substantially reduce generation of nonbiodegradable chloride waste.

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