Repository logo
  • English
  • 中文
Log In
Have you forgotten your password?
  1. Home
  2. College of Life Science / 生命科學院
  3. Fisheries Science / 漁業科學研究所
  4. Effects of C/N ratios on Growth, Water Quality and Mutual Inhibition of Probiotic and Vibrio parahaemolyticus
 
  • Details

Effects of C/N ratios on Growth, Water Quality and Mutual Inhibition of Probiotic and Vibrio parahaemolyticus

Date Issued
2015
Date
2015
Author(s)
Kao, Tai-Yun
URI
http://ntur.lib.ntu.edu.tw//handle/246246/276869
Abstract
This study added molasses as carbon source into the water to control carbon/ nitrogen ratios at five levels, 0, 5, 10, 15 and 20. 0 added nothing as a control group. To investigate different carbon/ nitrogen ratios effects of Bacillus subtilis, Rhodobacter sphaeroides and Vibrio parahaemolyticus on growth, water quality and mutual inhibition. In the experiment of the bacteria growth in different carbon/ nitrogen ratios water, the results show that Bacillus subtilis at 20 group were significantly higher than the control (p < 0.05). Each treatment group increased growth of Rhodobacter sphaeroides significantly compared to the control group (p < 0.05), while 15 treatment group had better effect than all treatment group. In addition, Vibrio parahaemolyticus at 5 treatment group were significantly increased rate of growth to control (p < 0.05). In the experiment of the water quality of bacteria in different carbon/ nitrogen ratios water, the results indicated that Bacillus subtilis reduced ammonia-N concentrations in water, but it was not effects significantly on each treatment group. In addition, the nitrite-N concentrations significantly lower at 20 treatment group than control (p < 0.05). Each treatment group of Rhodobacter sphaeroides, which reduced ammonia-N and nitrite-N concentration significantly compared to the control group (p < 0.05), while 10、15 and 20 treatment had better results. Vibrio parahaemolyticus at 15、20 treatment reduce the ammonia-N and nitrite-N concentrations significantly than control group (p < 0.05). Through the inhibition of bacteria growth, 103、105 cfu/ ml of Bacillus subtilis can produce inhibition effects on 103 cfu/ ml Vibrio parahaemolyticus. The 105 cfu/ ml of Rhodobacter sphaeroides had inhibition effects on 103 cfu/ ml Vibrio parahaemolyticus after 72 hr. In conclusion of this study, carbon source addition increase carbon/ nitrogen ratios in water can effectively improve the water quality and growth activities of Bacillus subtilis and Rhodobacter sphaeroides. To build a suitable environment of probiotic for more efficiently inhibit the growth of Vibrio parahaemolyticus.
Subjects
Carbon/ Nitrogen Ratios
Bacillus subtilis
Rhodobacter sphaeroides
Vibrio parahaemolyticus
Growth
Water quality
Inhibition
Type
thesis
File(s)
Loading...
Thumbnail Image
Name

ntu-104-R02b45008-1.pdf

Size

23.32 KB

Format

Adobe PDF

Checksum

(MD5):e1ce08f8a97b84b0e01cb5cbffb496be

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

總館學科館員 (Main Library)
醫學圖書館學科館員 (Medical Library)
社會科學院辜振甫紀念圖書館學科館員 (Social Sciences Library)

開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

  • 請確認所上傳的全文是原創的內容,若該文件包含部分內容的版權非匯入者所有,或由第三方贊助與合作完成,請確認該版權所有者及第三方同意提供此授權。
    Please represent that the submission is your original work, and that you have the right to grant the rights to upload.
  • 若欲上傳已出版的全文電子檔,可使用Open policy finder網站查詢,以確認出版單位之版權政策。
    Please use Open policy finder to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.
  • 網站簡介 (Quickstart Guide)
  • 使用手冊 (Instruction Manual)
  • 線上預約服務 (Booking Service)
  • 方案一:臺灣大學計算機中心帳號登入
    (With C&INC Email Account)
  • 方案二:ORCID帳號登入 (With ORCID)
  • 方案一:定期更新ORCID者,以ID匯入 (Search for identifier (ORCID))
  • 方案二:自行建檔 (Default mode Submission)
  • 方案三:學科館員協助匯入 (Email worklist to subject librarians)

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science