Primary Structure of Myostracal Prism Soluble Protein (MPSP) in Oyster Shell, Crassostrea gigas

2006 ◽  
Vol 25 (4) ◽  
pp. 288-294 ◽  
Author(s):  
Seung Woo Lee ◽  
Young Moon Kim ◽  
Hong Seok Choi ◽  
Jai Myung Yang ◽  
Cheong Song Choi
Keyword(s):  
Primary Structure ◽  
Crassostrea Gigas ◽  
Soluble Protein ◽  
Oyster Shell

scholarly journals Oyster Shell Waste (Crassostrea Gigas) as A Cheap Adsorbent for Adsorption Of Methylene Blue Dyes: Equilibrium and Kinetics Studies

2021 ◽  
Vol 1 (4) ◽  
pp. 95-102
Author(s):  
Muhammad Muhammad ◽  
Meriatna Meriatna ◽  
Nia Afriani ◽  
Rizka Mulyawan
Keyword(s):  
Methylene Blue ◽  
Correlation Coefficient ◽  
Crassostrea Gigas ◽  
Adsorption Process ◽  
Adsorption Equilibrium ◽  
Oyster Shell ◽  
Second Order ◽  
Order Model ◽  
Pseudo Second Order ◽  
Shell Powder

In this study, Oyster (Crassostrea gigas) shell powder which contains calcium carbonate (CaCO3) was converted into calcium oxide (CaO). The Oyster shell powder that had been activated was utilized for the adsorption of the methylene blue (MB) dyeing material, which is one of waste water concerns. Oyster shells were crushed and sieved into 100 mesh sized powder and then calcinated at a temperature of 600℃ and 800℃ both for 4 hours period. To determine the adsorption equilibrium, methylene blue (MB) solution was used with varying concentration from 10 to 50 mg/L in which the adsorbent weighing 3 g was put into a conical flash and shaken until the adsorption equilibrium was reached. As for the adsorption kinetics, 250 mL MB solution was used with initial concentrations of 10, 20 and 30 mg/L, with an adsorbent weight of 3 g and a solution at pH 11 for each concentration. The evaluation of the experimental data from the adsorption process is well explained by the Freundlich equation, with the correlation coefficient value (R2) found to be 0.9999, where the value of the adsorption intensity (n) is close to unity; this shows that the adsorption is multilayer or in other words the adsorption energy is heterogeneous. The kinetics study also shows that pseudo second-order model is the most applicable to the adsorption process. From the pseudo-second-order model, with the correlation coefficient between 0.9984 - 0.9999 can explain that the methylene blue (MB) adsorption process is chemically based sorption or in other words termed as chemisorption.

scholarly journals In situ distribution and characterization of the organic content of the oyster shell Crassostrea gigas (Mollusca, Bivalvia)

Micron ◽  
2013 ◽  
Vol 44 ◽  
pp. 373-383 ◽  
Author(s):  
Yannicke Dauphin ◽  
Alexander D. Ball ◽  
Hiram Castillo-Michel ◽  
Corinne Chevallard ◽  
Jean-Pierre Cuif ◽  
...  
Keyword(s):  
Crassostrea Gigas ◽  
Oyster Shell ◽  
Organic Content

scholarly journals Penambahan nanokalsium cangkang tiram (Crassostrea gigas) pada pakan dengan dosis berbeda terhadap pertumbuhan udang galah (Macrobachium rosenbergii)

2019 ◽  
Vol 6 (2) ◽  
pp. 80
Author(s):  
Nina Fitriana ◽  
Lia Handayani ◽  
Nurhayati Nurhayati
Keyword(s):  
Survival Rate ◽  
Experimental Design ◽  
Crassostrea Gigas ◽  
Macrobrachium Rosenbergii ◽  
Oyster Shell ◽  
Randomized Design ◽  
Commercial Feed ◽  
Recirculation System ◽  
Completely Randomized Design ◽  
Different Doses

AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh Penambahan nanokalsium cangkang tiram (Crassostrea gigas) pada pakan dengan dosis berbeda terhadap pertumbuhan udang galah (macrobrachium rosenbergii). Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan, pada perlakuan A (pakan komersial tanpa penambahan CaO). Perlakuan B (pakan komersial dengan tambahan 1% CaO), perlakuan C (pakan komersial dengan penambahan 2% CaO), perlakuan D (pakan komersial dengan penambahan 3% CaO). Kemudian selama penelitian 2 bulan pada akuarium dilengkapi juga sistem resirkulasi. Hasil penelitian menunjukkan dengan penambahan nanokalsium sebanyak 2% berpengaruh nyata terhadap kelangsungan hidup Udang yaitu A 95.0%, B 95.0%, C 100% dan D 92.5%, dan pada frekuensi molting udang galah memiliki tingkat tertinggi yaitu A 0,64 kali/ekor, lalu diikuti oleh perlakuan B 0,63 kali/ekor, kemudian diikuti oleh perlakuan D yaitu 0,53 kali/ekor, dan yang terendah diikuti oleh perlakuan A 0,51 kali/ekor.Kata kunci: nanokalsium; kelangsungan hidup; pertumbuhan; udang galahAbstractThis study aims to determine the effect of the addition of oyster shell nano-calcium (Crassostrea gigas) at different doses on the growth of giant shrimp (Macrobrachium rosenbergii). The experimental design used was Completely Randomized Design (CRD) with four treatments and two replications, in treatment A (commercial food without CaO addition). Treatment B (commercial feed with additional CaO 1%), treatment C (commercial feed with the addition of 2% CaO), treatment D (commercial feed with an addition of 3%). Then for two months of research there was an aquarium equipped with a recirculation system. The results showed that with nano-calcium approvals of 2% real participation in the survival of giant prawns, namely A 95.0%, B 95.0%, C 100% and D 92,5 %. and the moulting frequency of giant shrimp has the highest level of C 0.64 times/individual, then followed by treatment B 0.63 times/individual, then followed by treatment D 0.53 times/individual, and the lowest was followed by treatment A 0.51 times/individual.Keywords: nano-calcium; survival rate; growth; giant prawn

scholarly journals Relationship of pH, Glycogen, Soluble Protein, and Turbidity between Freshness of Raw Oyster Crassostrea gigas

2014 ◽  
Vol 47 (5) ◽  
pp. 495-500 ◽  
Author(s):  
Kwang Tae Son ◽  
Kil Bo Shim ◽  
Chi Won Lim ◽  
Na Young Yoon ◽  
Jeong Hwa Seo ◽  
...  
Keyword(s):  
Crassostrea Gigas ◽  
Soluble Protein ◽  
Relationship Of

Characteristic crystal orientation of folia in oyster shell, Crassostrea gigas

2008 ◽  
Vol 28 (2) ◽  
pp. 258-263 ◽  
Author(s):  
Seung Woo Lee ◽  
Gyeung Ho Kim ◽  
Cheong Song Choi
Keyword(s):  
Crassostrea Gigas ◽  
Crystal Orientation ◽  
Oyster Shell

Effect of heat treatment on physicochemical state and in vitro digestion of salt-soluble protein from Pacific oyster (Crassostrea gigas)

LWT ◽  
2020 ◽  
Vol 134 ◽  
pp. 110126
Author(s):  
Fan Zhang ◽  
Suisui Jiang ◽  
Xue Feng ◽  
Runfang Wang ◽  
Mingyong Zeng ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Crassostrea Gigas ◽  
Soluble Protein ◽  
Pacific Oyster ◽  
In Vitro Digestion ◽  
Physicochemical State

scholarly journals Production and Characterization of Adsorbent from Oyster Shell (Crassostrea gigas) Using Physics and Chemical Activation with ZnCl2 and Its Application for Removal of Hexavalent Chromium

Elkawnie ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 329
Author(s):  
Lia Handayani ◽  
Azwar Thaib ◽  
Nurhayati Nurhayati ◽  
Yayuk Astuti ◽  
Adi Darmawan
Keyword(s):  
Hexavalent Chromium ◽  
Crassostrea Gigas ◽  
Chemical Activation ◽  
Oyster Shell ◽  
Sem Analysis ◽  
Raw Material ◽  
Physical Activation ◽  
Shell Waste

Abstract: Oyster shell waste has been investigated as a raw material for making adsorbents that will be activated. Physical activation uses temperatures of 500 ºC, 600 ºC, 700 ºC, 800 ºC, 900 ºC and chemical activation uses ZnCl2 with a concentration of 1 %, 5 %, 10 % and 15 %. Based on the analysis of the characteristics that have been carried out for physically activated adsorbents, the oyster shell calcined at 800 ºC produces the best characteristics, it is a radius of 35.11 Å with a percentage of removal of 38.04 %, as well as the results of the FTIR, XRF and SEM analysis gives the best results among others. Whereas for chemically activated adsorbents, the use of activator ZnCl2 10% produces adsorbents with the best characteristics among others with a radius of 84.14 Å and removal percentage of 65.68 %, the best results for adsorbents activated using 10% ZnCl2 are also supported by analysis results given by FTIR, XRF, and SEM.Keywords: Adsorbent; BET; Cr6+; Oyster Shell Waste; XRF Abstrak: Cangkang tiram (Crassostrea gigas) telah diteliti sebagai bahan baku pembuatan adsorben yang akan diaktivasi secara fisika dan kimia. Pembuatan adsorben dengan aktivasi secara fisika menggunakan variasi suhu 500 ºC, 600 ºC, 700 ºC, 800 ºC dan 900 ºC. sedangkan aktivasi kimia yaitu menggunakan aktivator ZnCl2 menggunakan variasi konsentrasi 1 %, 5 %, 10% dan 15 %. Berdasarkan analisa karakteristik yang telah dilakukan untuk adsorben-adsorben yang telah diaktivasi secara fisika, cangkang tiram yang di kalsinasi pada suhu 800ºC menghasilkan karakteristik yang paling baik, yaitu radius pori-pori 35,11 Å dengan persentase penyisihan sebesar 38,04 %, begitu pula dengan hasil analisa FTIR, XRF dan SEM memberikan hasil terbaik diantara yang lain. sedangkan untuk adsorben-adsorben yang diaktivasi secara kimia, penggunaan aktivator ZnCl2 10% menghasilkan adsorben dengan karakteristik yang paling baik diantara lainnya dengan radius pori-pori 84,14 Å dan persentase penyisihan sebesar 65,68%, hasil terbaik untuk adsorben yang diaktivasi menggunakan ZnCl2 10 % juga didukung oleh hasil analisa dari FTIR, XRF dan SEM.

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