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Browsing by Author Dinh, Thuy Hang

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Showing results 1 to 6 of 6
  • Paper_Hanh_revised.pdf.jpg
  • Article

  • An active PAH-degrading microbial consortium developed from dioxin-contaminated sediments via enrichment technique

    • Authors: Nguyen, Thi Hanh; Duong, Van Hop; Nguyen, Hong Minh; Dinh, Thuy Hang (2009-04-24)

  • Via enrichment procedures carried out on a dioxin contaminated sediment sample from lotus pond at Danang airport, a microbial community assigned as DN553 with high capability of carbazol degradation was established. Analyses of community structure by using denaturing gradient gel electrophoresis (DGGE) of 16S rDNA fragments indicated that Achromobacter and Alcaligenes species dominated in this enrichment culture. In addition to carbazol, the enrichment culture was also able to utilize other PAH compounds such as naphthalene and phenanthrene as the only carbon and energy sources. In the presence of different PAH as growth substrates, the community structure changed accordingly, however...
  • document(38).pdf.jpg
  • Article

  • An Efficient Method for Isolation of Bifidobacteria from Infant Gut

    • Authors: Nguyen, Van Hung; Bui, Thi Viet Ha; Dinh, Thuy Hang (2016)

  • An efficient method was established for isolation of bifidobacteria from fecal samples of breast-fed infants. The method was based on the combination of Hungate technique applied on anoxic semi-liquid agar tubes, instead of double layer agar plates. Four growth media including BFM, BIM25, MRS and 385 were compared for the isolation efficiency on the basis of Hungate technique. Thus, among 30 isolates obtained from fecal samples of 14 breast fed infants of different ages under 1 year only eight bifidobacteria-like isolates were selected based on cell morphology and fermentation motif. It is revealed that Hungate technique with the use of anaerobic MRS and BFM media was more efficient f...
  • dinh thuy hang _nature.pdf.jpg
  • Article

  • lron Gorrosion by nouel anaerobic microorganisms

    • Authors: Dinh, Thuy Hang; Kuevert, Jan; MuBmann, Marc; Hassel, Achim W.; Stratmann, Martin; Widdelt, Friedrich (2004)

  • Corrosion of iron presents a serious economic problem. Whereas aerobic corrosion is a chemical processr, anaerobic corrosion is frequently linked to the activity of sulphate-reducing bacteria (SRB)'z 6. SRB are supposed to act upon iron primarily by produced hydrogen sulphide as a corrosive agent3,s,7 and by consumption of 'cathodic hydrogen' formed on iron in contact with water2-6'8. Among SRB, Desufovibrio species-with their capacity to consume hydrogen effectively-are conventionally regarded as the main culprits of anaerobic corrosion2 6,8-10; however, the underlying mechanisms are complex and insufficiently understood. Here we describe novel marine, corrosiye types of S...
  • tap chi khoa hoc 2007_2.pdf.jpg
  • Article

  • Microorganisms in yeast cakes controlling the quality and taste of traditional fermentation products

    • Authors: Tran, Thi Le Quyen; Dao, Thi Luong; Duong, Van Hop; Bui, Thi Viet Ha; Dinh, Thuy Hang (2007)

  • Alcohol fermentation was carried out with sticky rice using 15 most popular sorts of yeast cakes in Vietnam to produce different kinds of alcoholic beverages. The products were obtained by traditional distillation method and compared with each other for flavour and taste according to the standard qualification scale for alcoholic products. It revealed that Ruou Can yeast cake which has been widely used for hundreds years by local commirnities yielded the best product and therefore was selected for further studies...
  • Microorganisms in yeast cakes controlling the quality and taste of traditional fermentation products.pdf.jpg
  • Article

  • Microorganisms in yeast cakes controlling the quality and taste of traditional fermentation products

    • Authors: Tran, Thi Le Quyen; Bui, Thi Viet Ha; Dao, Thi Luong; Dinh, Thuy Hang; Duong, Van Hop (2007)

  • Alcohol fermentation was carried out with sticky rice using 15 most popular sorts of yeast cakes in Vietnam to produce different kinds of alcoholic beverages. The products were obtained by traditional distillation method and compared with each other for flavour and taste according to the standard qualification scale for alcoholic products. It revealed that Ruou Can yeast cake which has been widely used for hundreds years by local communities yielded the best product and therefore was selected for further studies. From this yeast cake, two yeast strains were first time isolated and identified as Saccharomyces cerevisiae and Saccharomycopsis fibuliger based on morphology and 26S rDNA D1...
  • Bai bao_Minh_revised.pdf.jpg
  • Article

  • Study on PAH degrading bacteria isolated from dioxin contaminated soil in Vietnam

    • Authors: Nguyen, Hong Minh; Duong, Van Hop; Nguyen, Thi Hanh; Dinh, Thuy Hang (2010)

  • Bacterial community in dioxin contaminated soil and mud samples from Danang airport was enumerated and studied for their potential degradation capability against three-ring compound carbazol. The cell number was determined on nutrient rich medium and on mineral medium supplemented with carbazol. It has been showed that number of cells presented in mud samples was significantly higher than in soil samples, in the range of 1 magnitude order. About 50% of the total cell number in each sample grown on the medium with carbazol. Analyzing 12 representative strains selectively isolated on the carbazol containing medium by using the ARDRA method with two endonucleases HaeIII and MspI showed t...

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Browsing by Author Dinh, Thuy Hang

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 6 of 6
  • Paper_Hanh_revised.pdf.jpg
  • Article

  • An active PAH-degrading microbial consortium developed from dioxin-contaminated sediments via enrichment technique

    • Authors: Nguyen, Thi Hanh; Duong, Van Hop; Nguyen, Hong Minh; Dinh, Thuy Hang (2009-04-24)

  • Via enrichment procedures carried out on a dioxin contaminated sediment sample from lotus pond at Danang airport, a microbial community assigned as DN553 with high capability of carbazol degradation was established. Analyses of community structure by using denaturing gradient gel electrophoresis (DGGE) of 16S rDNA fragments indicated that Achromobacter and Alcaligenes species dominated in this enrichment culture. In addition to carbazol, the enrichment culture was also able to utilize other PAH compounds such as naphthalene and phenanthrene as the only carbon and energy sources. In the presence of different PAH as growth substrates, the community structure changed accordingly, however...
  • document(38).pdf.jpg
  • Article

  • An Efficient Method for Isolation of Bifidobacteria from Infant Gut

    • Authors: Nguyen, Van Hung; Bui, Thi Viet Ha; Dinh, Thuy Hang (2016)

  • An efficient method was established for isolation of bifidobacteria from fecal samples of breast-fed infants. The method was based on the combination of Hungate technique applied on anoxic semi-liquid agar tubes, instead of double layer agar plates. Four growth media including BFM, BIM25, MRS and 385 were compared for the isolation efficiency on the basis of Hungate technique. Thus, among 30 isolates obtained from fecal samples of 14 breast fed infants of different ages under 1 year only eight bifidobacteria-like isolates were selected based on cell morphology and fermentation motif. It is revealed that Hungate technique with the use of anaerobic MRS and BFM media was more efficient f...
  • dinh thuy hang _nature.pdf.jpg
  • Article

  • lron Gorrosion by nouel anaerobic microorganisms

    • Authors: Dinh, Thuy Hang; Kuevert, Jan; MuBmann, Marc; Hassel, Achim W.; Stratmann, Martin; Widdelt, Friedrich (2004)

  • Corrosion of iron presents a serious economic problem. Whereas aerobic corrosion is a chemical processr, anaerobic corrosion is frequently linked to the activity of sulphate-reducing bacteria (SRB)'z 6. SRB are supposed to act upon iron primarily by produced hydrogen sulphide as a corrosive agent3,s,7 and by consumption of 'cathodic hydrogen' formed on iron in contact with water2-6'8. Among SRB, Desufovibrio species-with their capacity to consume hydrogen effectively-are conventionally regarded as the main culprits of anaerobic corrosion2 6,8-10; however, the underlying mechanisms are complex and insufficiently understood. Here we describe novel marine, corrosiye types of S...
  • tap chi khoa hoc 2007_2.pdf.jpg
  • Article

  • Microorganisms in yeast cakes controlling the quality and taste of traditional fermentation products

    • Authors: Tran, Thi Le Quyen; Dao, Thi Luong; Duong, Van Hop; Bui, Thi Viet Ha; Dinh, Thuy Hang (2007)

  • Alcohol fermentation was carried out with sticky rice using 15 most popular sorts of yeast cakes in Vietnam to produce different kinds of alcoholic beverages. The products were obtained by traditional distillation method and compared with each other for flavour and taste according to the standard qualification scale for alcoholic products. It revealed that Ruou Can yeast cake which has been widely used for hundreds years by local commirnities yielded the best product and therefore was selected for further studies...
  • Microorganisms in yeast cakes controlling the quality and taste of traditional fermentation products.pdf.jpg
  • Article

  • Microorganisms in yeast cakes controlling the quality and taste of traditional fermentation products

    • Authors: Tran, Thi Le Quyen; Bui, Thi Viet Ha; Dao, Thi Luong; Dinh, Thuy Hang; Duong, Van Hop (2007)

  • Alcohol fermentation was carried out with sticky rice using 15 most popular sorts of yeast cakes in Vietnam to produce different kinds of alcoholic beverages. The products were obtained by traditional distillation method and compared with each other for flavour and taste according to the standard qualification scale for alcoholic products. It revealed that Ruou Can yeast cake which has been widely used for hundreds years by local communities yielded the best product and therefore was selected for further studies. From this yeast cake, two yeast strains were first time isolated and identified as Saccharomyces cerevisiae and Saccharomycopsis fibuliger based on morphology and 26S rDNA D1...
  • Bai bao_Minh_revised.pdf.jpg
  • Article

  • Study on PAH degrading bacteria isolated from dioxin contaminated soil in Vietnam

    • Authors: Nguyen, Hong Minh; Duong, Van Hop; Nguyen, Thi Hanh; Dinh, Thuy Hang (2010)

  • Bacterial community in dioxin contaminated soil and mud samples from Danang airport was enumerated and studied for their potential degradation capability against three-ring compound carbazol. The cell number was determined on nutrient rich medium and on mineral medium supplemented with carbazol. It has been showed that number of cells presented in mud samples was significantly higher than in soil samples, in the range of 1 magnitude order. About 50% of the total cell number in each sample grown on the medium with carbazol. Analyzing 12 representative strains selectively isolated on the carbazol containing medium by using the ARDRA method with two endonucleases HaeIII and MspI showed t...