scholarly journals VARIATION, DEVELOPMENT AND GROWTH IN HOLOTHURIA FLORIDANA POURTALES AND IN HOLOTHURIA ATRA JAGER

Biometrika ◽  
1908 ◽  
Vol 6 (2-3) ◽  
pp. 236-301 ◽  
Author(s):  
C. L. EDWARDS
Keyword(s):  
Holothuria Atra ◽  
Holothuria Floridana

Lipids and Free Fatty Acids of Red Sea Avrainvillea amadelpha, Holothuria atra, and Sarcocornia fruticosa Inhibit Marine Bacterial Biofilms

2020 ◽  
Vol 17 (6) ◽  
pp. 466-471
Author(s):  
Usama W. Hawas ◽  
Fekri Shaher ◽  
Mohamed Ghandourah ◽  
Lamia T. Abou El-Kassem ◽  
Sathianeson Satheesh ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Red Sea ◽  
Inhibitory Activity ◽  
Sea Cucumber ◽  
Bacterial Biofilms ◽  
Antibiofilm Activity ◽  
Bacterial Strains ◽  
Holothuria Atra ◽  
Sarcocornia Fruticosa

This study aimed at evaluating the antibiofilm activity of the Red Sea metabolites from green alga Avrainvillea amadelpha, sea cucumber Holothuria atra and costal plant Sarcocornia fruticosa against three biofilm bacterial strains isolated from Jeddah coast. Free fatty acids (FFAs) and other lipoidal matters were extracted from these organisms and analyzed by GC-MS. The composition of lipoidal fractions showed that A. amadelpha is rich by 74% saturated FAs, while sea cucumber H. atra revealed high content (60%) of unsaturated FAs. Palmitic acid is the major FA component in all species ranging from 14.5 to 26.7%. Phytol, sterols and hydrocarbons (C8-C29) were represented in the alga A. amadelpha as high contents with values 25.8, 21.9 and 18.5%, respectively. The extracts and lipoidal contents showed biofilm inhibitory activity against the isolated bacterial strains, where the unsaponified lipoidal fraction of S. fruticosa exhibited highest inhibitory activity against Planomicrobium sp. at concentration of 200 µg/mL.

Fission and its effect on population structure of Holothuria atra (Echinodermata: Holothuroidea) in Taiwan

1993 ◽  
Vol 116 (1) ◽  
pp. 109-115 ◽  
Author(s):  
S. -M. Chao ◽  
C. -P. Chen ◽  
P. S. Alexander
Keyword(s):  
Population Structure ◽  
Holothuria Atra

scholarly journals Bioactive compounds from Holothuria atra of Indian ocean

SpringerPlus ◽  
2014 ◽  
Vol 3 (1) ◽  
Author(s):  
Devaraj Isaac Dhinakaran ◽  
Aaron Premnath Lipton
Keyword(s):  
Indian Ocean ◽  
Bioactive Compounds ◽  
Holothuria Atra

scholarly journals Ultrastruktur Alimentary Canal Teripang Holothuria scabra dan Holothuria atra (Echinodermata : Holothuroidea)

2016 ◽  
Vol 5 (1) ◽  
pp. 86
Author(s):  
Retno Hartati ◽  
Widianingsih Widianingsih ◽  
Ali Djunaedi
Keyword(s):  
Alimentary Canal ◽  
Holothuria Scabra ◽  
Holothuria Atra

Abstrak Informasi tentang  feeding biologi pada teripang, termasuk didalamnya tentang fungsional morfologi  dan struktur dari organ – organ yang berfungsi dalam proses feeding sangat penting untuk diketahui untuk lebih memahami proses makan pada teripang. Penelitian ini bertujuan untuk menganalisis struktur jaringan alimentary canal  Teripang Putih (H. scabra) dari Pantai Pejarakan Bali dan Teripang Keling (H. atra) dari Pantai Bandengan Jepara melalui analisa histologi klasik. Hasil penelitian menunjukkan bahwa Alimentary canal Teripang Hitam dan teripang Pasir terdiri dari faring, esofagus, stomach, descending intestine 1, ascending intestine, descending intestine 2 dan cloaca.  Berdasarkan analisa histologi, struktur alimentary canal Teripang Pasir dan Teripang Hitam memiliki 3 penyusun utama, yaitu lumen, vili usus dan jaringan ikat yang merupakan serabut otot. Tiap bagian saluran pencernaan memiliki tinggi lipatan epitel vili dan ukuran vili yang berbeda, dengan lipatan tertinggi dan vili paling kecil terdapat pada bagian 4, yaitu descending intestine 1.   Kata kunci : ultrastruktur, alimentary canal, Holoturia scabra, Holoturia atra

scholarly journals Isolation of sea cucumbers’s (Holothuria atra) secondary metabolite using column-chromatography technique

2021 ◽  
Vol 869 (1) ◽  
pp. 012010
Author(s):  
S Agustina ◽  
S Bella ◽  
S Karina ◽  
I Irwan ◽  
M Ulfah
Keyword(s):  
Secondary Metabolites ◽  
Ethyl Acetate ◽  
Secondary Metabolite ◽  
Column Chromatography ◽  
Extraction Method ◽  
Sea Cucumber ◽  
Sea Cucumbers ◽  
Marine Chemistry ◽  
Holothuria Atra ◽  
Metabolite Content

Abstract Identification of sea cucumbers from Benteng Inong Balee, Aceh Besar and their phytochemistry screening were conducted in December 2020 to January 2021 at Laboratory of Marine Chemistry and Fisheries Biotechnology, Universitas Syiah Kuala. The purpose of this study was to identify the species of sea cucumbers and its secondary metabolite content using phytochemistry screening and column chromatography. The species of sea cucumbers that were identified was Holothuria atra. The extraction method used in sea cucumber extraction was maceration method, while the separation of secondary metabolites used column-chromatography with eluent of n-hexane : ethyl acetate (8:4). The results showed that secondary metabolites obtained from phytochemical tests were flavonoids, saponins and triterpenoids.

scholarly journals Inhibitory Effect of Active Substances of Lollyfish (Holothuria atra) Against the Development of Plasmodium falciparum Based on In Silico Study

2020 ◽  
Vol 25 (4) ◽  
pp. 135-142
Author(s):  
Felly Moelyadi ◽  
Prawesty Diah Utami ◽  
Irmawati M. Dikman
Keyword(s):  
Plasmodium Falciparum ◽  
Antimalarial Drug ◽  
In Silico ◽  
Lethal Dose ◽  
Artemisinin Resistance ◽  
Inhibitory Effect ◽  
In Silico Study ◽  
Carbon Dioxide Co2 ◽  
Holothuria Atra ◽  
Active Substances

The high level of artemisinin resistance as the antimalarial drug makes the active substances found of lollyfish (Holothuria atra) become a very useful discovery as a new antimalarial drug. The purpose of this research is to find out the inhibitory effect of the active substances of lollyfish against the development of Plasmodium falciparum with in silico method. This is a one-shot experimental study research. Based on the test of potentially active substances of lollyfish through PubChem (https://pubchem.ncbi.nlm.nih.gov/), there are pyrogallol and catechin that have potential as the antimalarial drug. Pyrogallol, chlorogenic acid, catechin dan ascorbic acid have indirect inhibition to P. falciparum Orotidine 5-Monophosphate Decarboxylase (PfOMPDC) through carbon dioxide (CO2) and it is visualized by STITCH DB Version 5.0 (http://stitch.embl.de/). The binding affinity score of catechin, obtained from molecular docking, is higher than other substances and artemisinin. The Physicochemical and pharmacokinetic activity of the substance was predicted through SWISS ADME (http://www.swissadme.ch/index.php), while the toxicity was predicted through Pro-Tox (http://tox.charite.de/protox_II/). Catechin is a substance in lollyfish that is the safest because its lowest toxicity and very effective to be used as the antimalarial drug because of its high lethal dose 50 (LD50). Therefore, active substances in lollyfish have inhibitory effects against the development of P. falciparum based on in silico study.

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