Browsing by Author Bui, Thi Viet Ha

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  • Authors: Nguyen, Thi Hong Hue; Pham, Duc Ngoc; Tran, My Hanh; Ngo, Anh Tien; Bui, Thi Viet Ha (2016)

  • Hydrogen is considered as an ideal substitute to fossil fuels in the energy and non-polluting characteristics. Biological hydrogen production using microorganisms is a promising method to the world's energy industry. The anaerobic, mesophilic, Gram-positive strain Clostridium beijerinckii CB3 (C. beijerinckii CB3) isolated from cattle feces in North of Vietnam has been studied to optimize the biohydrogen production in anaerobic condition. In this study, the effects of culture conditions on hydrogen production by C. beijerinckii CB3 were investigated in batch culture using serum bottles. Various medium components (carbon and nitrogen sources, inorganic salts) and environmental factors ...

  • document(38).pdf.jpg
  • Article


  • 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...

  • tap chi khoa hoc 2007_2.pdf.jpg
  • Article


  • 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


  • 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...

  • document(24).pdf.jpg
  • Article


  • Authors: Nguyen, Thi Giang; Pham, Duc Ngoc; Tran, My Hanh; Bui, Thi Viet Ha (2016)

  • In aquaculture, antibiotics have been used mainly for therapeutic purposes and as prophylactic agents. The abuse of antibiotics in aquaculture farming is a big problem. To achieve high yields and profits, many farmers are now applying intensive farming methods. The improper use of antibiotics causes the phenomenon of drug-resistant bacteria and residue accumulation of antibiotics in aquatic meat. Another reason causing antibiotics-resistant bacteria is the use of antibiotics to small quantities of aquatic feed as a growth stimulant. So that in this study, the initial evaluation of the antibiotic resistance of bacteria isolated from freshwater fish was determined. The experimental resu...

Browsing by Author Bui, Thi Viet Ha

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 5 of 5
  • document(37).pdf.jpg
  • Article


  • Authors: Nguyen, Thi Hong Hue; Pham, Duc Ngoc; Tran, My Hanh; Ngo, Anh Tien; Bui, Thi Viet Ha (2016)

  • Hydrogen is considered as an ideal substitute to fossil fuels in the energy and non-polluting characteristics. Biological hydrogen production using microorganisms is a promising method to the world's energy industry. The anaerobic, mesophilic, Gram-positive strain Clostridium beijerinckii CB3 (C. beijerinckii CB3) isolated from cattle feces in North of Vietnam has been studied to optimize the biohydrogen production in anaerobic condition. In this study, the effects of culture conditions on hydrogen production by C. beijerinckii CB3 were investigated in batch culture using serum bottles. Various medium components (carbon and nitrogen sources, inorganic salts) and environmental factors ...

  • document(38).pdf.jpg
  • Article


  • 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...

  • tap chi khoa hoc 2007_2.pdf.jpg
  • Article


  • 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


  • 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...

  • document(24).pdf.jpg
  • Article


  • Authors: Nguyen, Thi Giang; Pham, Duc Ngoc; Tran, My Hanh; Bui, Thi Viet Ha (2016)

  • In aquaculture, antibiotics have been used mainly for therapeutic purposes and as prophylactic agents. The abuse of antibiotics in aquaculture farming is a big problem. To achieve high yields and profits, many farmers are now applying intensive farming methods. The improper use of antibiotics causes the phenomenon of drug-resistant bacteria and residue accumulation of antibiotics in aquatic meat. Another reason causing antibiotics-resistant bacteria is the use of antibiotics to small quantities of aquatic feed as a growth stimulant. So that in this study, the initial evaluation of the antibiotic resistance of bacteria isolated from freshwater fish was determined. The experimental resu...