Results 31 to 40 of about 247 (138)

Aplikasi Alginat sebagai Bahan Pengental pada Pencapan Batik

Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan, 2014
ABSTRAK Untuk mengetahui kemampuan natrium alginat hasil ekstraksi rumput laut jenis Sargassum filipendula sebagai bahan pengental pada pencapan batik, telah dilakukan serangkaian percobaan dan pencapan. Tahap awal telah dilakukan uji bahan baku alginat
Ellya Sinurat, Murdinah Murdinah
doaj   +1 more source

Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies [PDF]

Electronic Journal of Biotechnology, 2007
The biosorption of lead by the brown alga Sargassum filipendula was studied. pH 4.0 was the optimum value for the biosorption of lead. Isotherms indicated that for solutions containing 0.03 ± 0.001 up to 3.27 ± 0.04 mmol/L of lead, 2.0g/L was the optimum biomass concentration.
Vieirao, Denise Mesquita, da Costa, Antonio Carlos Augusto, Henriques, Cristiane Assumpção, Cardoso, Vicelma Luiz, de França, Francisca Pessôa   +4 more
openaire   +2 more sources

Pembentukan Gel Alginat yang Diekstrak dari Sargassum filipenduladan Turbinaria decurrensMenggunakan CaCO3 dan Glucono- δ lactone (GDL)

Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan, 2010
Penelitian telah dilakukan untuk mengetahui pengaruh penambahan CaCO3 pada pembentukan gel dan karakteris tik gel alginat yang diekstrak dari Sargassum filipendula danTurbinaria decurrens.Sebagai pembanding digunakan alginat komersial dari Sigma.
Subaryono Subaryono, Rosmawaty Peranginangin, D. Fardiaz, F. Kusnandar   +3 more
doaj   +1 more source

Remoção de níquel de soluções aquosas em batelada e em coluna utilizando a alga marinha marrom Sargassum filipendula - DOI: 10.4025/actascitechnol.v29i2.695

Acta Scientiarum: Technology, 2008
The nickel(II) biosorption capacity of the Sargassum filipendula brown marine algae was studied in the batch mode. The biosorption study involved the determination of equilibrium data of the nickel-biomass system, considering the influence of the ...
Araceli Aparecida Seolatto, Márcia Terezinha Veit, Eneida Sala Cossich, Célia Regina Granhen Tavares, Edson Antônio da Silva, Eduardo Augusto Pontel   +5 more
doaj   +1 more source

Planejamento experimental estatístico para a otimização das condições em batelada de dessorção de níquel da alga marinha Sargassum filipendula - DOI: 10.4025/actascitechnol.v31i2.989

Acta Scientiarum: Technology, 2009
A fim de se realizar um estudo sobre os efeitos de parâmetros importantes na dessorção de níquel da alga marinha Sargassum filipendula, quatro agentes foram testados em grupos de planejamento fatorial 4.23 (tipo de eluente (E), carga de níquel (q ...
Araceli Aparecida Seolatto, Célia Regina Tavares, Eneida Sala Cossich, Edson Antonio da Silva, Terezinha Aparecida Guedes   +4 more
doaj   +1 more source

EPR Spectroscopy Investigation of Cu2+ Ions Adsorbed in Tannin‐Formaldehyde Resins of Mimosa (Acacia mearnsii) Bark Extracts

Journal of Spectroscopy, Volume 2015, Issue 1, 2015., 2015
The chemical environment of Cu2+ ions adsorbed in tannin‐formaldehyde resins of Acacia mearnsii bark extracts, prepared from polybutene, is investigated by EPR spectroscopy at 300 K. The spectrum is simulated considering two isolated axial Cu(II) species (Species 1: A∥ = 16.50(5) mT, A⊥ = 1.20(10) mT, g∥ = 2.28(1), and g⊥ = 2.08(1); Species 2: A∥ = 15 ...
Marcelo H. Herbst, Ney V. Vugman, Maciej Sitarz   +2 more
wiley   +1 more source

Remoção de níquel(II) de soluções aquosas pela biomassa Sargassum filipendula em múltiplos ciclos de sorção-dessorção - DOI: 10.4025/actascitechnol.v31i1.840

Acta Scientiarum: Technology, 2009
Foi estudado o desempenho da alga marinha Sargassum filipendula na remoção de níquel de uma solução de concentração de 50 mg L-1 em pH 3,5, em colunas de leito fixo que operam em ciclos de adsorção/dessorção.
Araceli Aparecida Seolatto, Maurício Melo Câmara, Célia Regina Tavares, Eneida Sala Cossich, Edson Antonio da Silva   +4 more
doaj   +1 more source

Immunomodulatory effects and antimicrobial activity of heterofucans from Sargassum filipendula

Journal of Applied Phycology, 2017
Parasitic diseases are a human health problem mainly in low-income areas. The drugs available for the treatment of these diseases are far from satisfactory due to high costs, toxicity, and drug resistance. Sulfated polysaccharides are a complex group of bioactive polymers and can be obtained from seaweeds.
Telles, Cinthia Beatrice Silva, Mendes-Aguiar, Carolina, Fidelis, Gabriel Pereira, Frasson, Amanda Piccoli, Pereira, Wogelsanger Oliveira, Scortecci, Katia Castanho, Camara, Rafael Barros Gomes, Nobre, Leonardo Thiago Duarte Barreto, Costa, Leandro Silva, Tasca, Tiana, Rocha, Hugo Alexandre de Oliveira   +10 more
openaire   +2 more sources

The Growth of Monoraphidium sp. and Scenedesmus sp. Cells in the Presence of Thorium

The Scientific World Journal, Volume 2012, Issue 1, 2012., 2012
Toxicity of thorium by Monoraphidium sp. and Scenedesmus sp. was studied. Microalgal cultures were inoculated in ASM‐1 medium in presence and absence of thorium. Its effect was monitored by direct counting on Fuchs‐Rosenthal chamber and with software. The toxicity of thorium over the species was observed for concentrations over 50.0 mg/L. After 30 days,
Juliana Cristina de Queiroz, Ana Cristina de Melo Ferreira, Antonio Carlos Augusto da Costa, Pavel Povinec, Steven Y. Qian   +4 more
wiley   +1 more source

Physiological performance by growth rate, pigment and protein content of the brown seaweed Sargassum filipendula (Ochrophyta: Fucales) induced by moderate UV radiation exposure in the laboratory

Scientia Marina, 2020
UV radiation is a factor affecting the distribution and physiology of photosynthetic organisms in an aquatic ecosystem. Studies with macroalgae indicate diverse biological disturbances in response to UV radiation.
Luz K. Polo, Fungyi Chow
doaj   +1 more source