Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions

Diatom bentik adalah pengeluar EPA semulajadi, namun demikian jumlah EPA yang dihasilkan adalah rendah dalam persekitaran semula jadi, terutamanya penderitaan daripada pembatasan resapan cahaya. Kekurangan ini telah mendorong penyelidikan untuk memperbaiki kandungan EPA dalam biojisim yang dikul...

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Main Author: Ng, Bee Wah
Format: Thesis
Language:English
Published: 2016
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Online Access:http://eprints.usm.my/32074/1/NG_BEE_WAH_24%28NN%29.pdf
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spelling my-usm-ep.320742019-04-12T05:25:27Z Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions 2016-01 Ng, Bee Wah QH1 Natural history (General - Including nature conservation, geographical distribution) Diatom bentik adalah pengeluar EPA semulajadi, namun demikian jumlah EPA yang dihasilkan adalah rendah dalam persekitaran semula jadi, terutamanya penderitaan daripada pembatasan resapan cahaya. Kekurangan ini telah mendorong penyelidikan untuk memperbaiki kandungan EPA dalam biojisim yang dikultur serta mod pengkulturan heterotrofik mempersembahkan suatu peluang yang baru. Sebahagian daripada ini, komposisi kimia kasar dan komposisi asid lemak pada strain pemencilan tempatan telah ditentukan sebagai sebahagian daripada kajian ini untuk mencari satu spesies untuk digunakan sebagai makanan dalam akuakultur tropika terutamanya diet yang kuat mempengaruhi ke atas kemandirian dan komposisi biokimia kasar Artemia sp. yang sedang membesar. Walau bagaimanapun, tiada kajian setakat ini yang telah dijalankan untuk mengkaji hubungan antara pindahan PUFA bentik diatom dari mod yang berbeza penanaman ke atas Artemia sp.. Dalam kajian ini, diatom bentik pemencilan tempatan ini telah dikenal pasti sebagai Amphora subacutiuscula berdasarkan filigeni dan dinding sel silika klasifikasi. Benthic diatoms are the natural EPA producers but the amount is notably low under their natural environment, mainly suffer from the limitation of light diffusion. This drawback has prompted research to improve the EPA content and the heterotrophic mode of cultivation presents a new opportunity as a practical solution. The gross chemical composition and fatty acid composition of the locally isolated strain was determined to find a species as feed in tropical aquaculture, especially the diet that strongly influences survival and gross biochemical compositions of ongrown Artemia sp.. However, no studies to date have been conducted to investigate the relationship between PUFA transferred from different cultivation mode of benthic diatom to Artemia sp.. A locally isolated benthic diatom, identified as Amphora subacutiuscula based on phylogeny and silica cell wall classification was used in this study. 2016-01 Thesis http://eprints.usm.my/32074/ http://eprints.usm.my/32074/1/NG_BEE_WAH_24%28NN%29.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Kajihayat (School of Biological Sciences)
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic QH1 Natural history (General - Including nature conservation
geographical distribution)
spellingShingle QH1 Natural history (General - Including nature conservation
geographical distribution)
Ng, Bee Wah
Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions
description Diatom bentik adalah pengeluar EPA semulajadi, namun demikian jumlah EPA yang dihasilkan adalah rendah dalam persekitaran semula jadi, terutamanya penderitaan daripada pembatasan resapan cahaya. Kekurangan ini telah mendorong penyelidikan untuk memperbaiki kandungan EPA dalam biojisim yang dikultur serta mod pengkulturan heterotrofik mempersembahkan suatu peluang yang baru. Sebahagian daripada ini, komposisi kimia kasar dan komposisi asid lemak pada strain pemencilan tempatan telah ditentukan sebagai sebahagian daripada kajian ini untuk mencari satu spesies untuk digunakan sebagai makanan dalam akuakultur tropika terutamanya diet yang kuat mempengaruhi ke atas kemandirian dan komposisi biokimia kasar Artemia sp. yang sedang membesar. Walau bagaimanapun, tiada kajian setakat ini yang telah dijalankan untuk mengkaji hubungan antara pindahan PUFA bentik diatom dari mod yang berbeza penanaman ke atas Artemia sp.. Dalam kajian ini, diatom bentik pemencilan tempatan ini telah dikenal pasti sebagai Amphora subacutiuscula berdasarkan filigeni dan dinding sel silika klasifikasi. Benthic diatoms are the natural EPA producers but the amount is notably low under their natural environment, mainly suffer from the limitation of light diffusion. This drawback has prompted research to improve the EPA content and the heterotrophic mode of cultivation presents a new opportunity as a practical solution. The gross chemical composition and fatty acid composition of the locally isolated strain was determined to find a species as feed in tropical aquaculture, especially the diet that strongly influences survival and gross biochemical compositions of ongrown Artemia sp.. However, no studies to date have been conducted to investigate the relationship between PUFA transferred from different cultivation mode of benthic diatom to Artemia sp.. A locally isolated benthic diatom, identified as Amphora subacutiuscula based on phylogeny and silica cell wall classification was used in this study.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Ng, Bee Wah
author_facet Ng, Bee Wah
author_sort Ng, Bee Wah
title Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions
title_short Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions
title_full Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions
title_fullStr Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions
title_full_unstemmed Growth Profile And Lipid Composition Of Locally Isolated Benthic Diatom Amphora Subacutiuscula (Schoeman, 1972) Under Different Cultivation Conditions
title_sort growth profile and lipid composition of locally isolated benthic diatom amphora subacutiuscula (schoeman, 1972) under different cultivation conditions
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Sains Kajihayat (School of Biological Sciences)
publishDate 2016
url http://eprints.usm.my/32074/1/NG_BEE_WAH_24%28NN%29.pdf
_version_ 1747820521822617600