scholarly journals Sodium alginate extraction from brown seaweed (Turbinaria conoides) and its structural property as bipolymer electrolyte

2019 ◽  
Author(s):  
Nurhadini ◽  
Yudi Setiawan ◽  
Ristika Oktavia Asriza ◽  
Anggraeni
Keyword(s):  
Sodium Alginate ◽  
Structural Property ◽  
Brown Seaweed ◽  
Turbinaria Conoides ◽  
Alginate Extraction

scholarly journals Acid and calcium alginate extraction method affected the quality of alginate from brown seaweed Sargasum hystrix J. Agardh

2018 ◽  
Vol 21 (3) ◽  
pp. 532
Author(s):  
Ivana M. Diharningrum ◽  
Amir Husni
Keyword(s):  
Moisture Content ◽  
Sodium Alginate ◽  
Extraction Method ◽  
Calcium Alginate ◽  
Functional Group ◽  
Brown Seaweed ◽  
Extraction Methods ◽  
Ash Content ◽  
Alginate Extraction

Seaweed is one of the marine biological resources of Indonesia that has a high potential to produce alginate, however, the most appropiate method to extract the alginate of high quality is still unknown. This study was aimed to determine the effects of extraction methods on the quality of alginate from seaweed Sargassum hystrix and compared the extraction cost. Two extraction methods were used in this study including acidic and calcium method. The yield, moisture content, viscosity, pH, whiteness degree, functional group, ash content and extraction cost were evaluated. The viscosity and whiteness degree of sodium alginate from acidic method was 126.00±7.21 cPs and 75.27±0.58 cPs, respectively. Meanwhile the calcium method produced sodium alginate with viscosity 7.23±1.50 cPs and whiteness degree 68.95±0.18 cPs. The yield, moisture content, and ash content of alginate produced by acidic method were lower compare to that of produced by calcium method. Cost analysis showed the acidic method required higher cost. Nevertheless, these resultssuggest that acidic method produce alginate with better quality than the calcium method.

scholarly journals Effect of Extraction Methods on Characteristic of SodiumAlginate from Brown Seaweed Sargassum fluitans

2018 ◽  
Vol 20 (3) ◽  
pp. 478 ◽  
Author(s):  
Annisa Ajeng Maharani ◽  
Amir Husni ◽  
Nurfitri Ekantari
Keyword(s):  
Sodium Alginate ◽  
Alginic Acid ◽  
Group Analysis ◽  
Brown Seaweed ◽  
Extraction Methods ◽  
Quality Parameters ◽  
Ash Content ◽  
Primary Metabolite ◽  
Acid Method ◽  
Alginate Extraction

Alginate is a primary metabolite that is needed in food and non food industries. Alginate extraction<br />method of seaweed affect on viscosity and yield of the alginate. This study aimed to determine the effect of<br />extraction methods on characteristic and quality of sodium alginate Sargassum fluitans and the extraction<br />cost needed. This study used two different extraction methods which wereacid alginate method and calcium<br />alginate method. Quality parameters observed include yield, moisture content, ash content, viscosity,<br />pH, whiteness index, and functional group analysis, also extraction cost analysis. The results showed that<br />alginate extraction of S. fluitans by alginic acid method produced better sodium alginate quality than using<br />calcium alginate method, but the cost higher. Sodium alginate produced by alginic acid method had high<br />viscosity (127.17±11.50 cps) with yield 9.95±0.31%. The moisture and ash content of the product was low or<br />9.35±0.31% and 21.88±0.41%, respectively.<br /><br />

scholarly journals The Characteristics of Sodium Alginate from Brown Seaweed Sargassum crassifolium with Different Filtering Tools

2017 ◽  
Vol 20 (2) ◽  
pp. 351 ◽  
Author(s):  
Ellya Sinurat ◽  
Retni Marliani
Keyword(s):  
Moisture Content ◽  
Sodium Alginate ◽  
Brown Seaweed ◽  
Gel Strength ◽  
Filter Press ◽  
Average Yield ◽  
The World ◽  
Filtration Stage ◽  
Alginate Extraction

Indonesia is the largest producer of seaweed in the world, one of the potential marine biological resources is the brown seaweed (Sargassum crassifolium) known as an alginate producer. Alginate extraction through demineralization stage, neutralization, extraction, filtration, precipitation and bleaching. Filtration stage is a very influential process on the quality of alginate produced. In this research, filtering using different tools screen vibrator and hydraulic filter press was conducted to characterize Na-alginate seaweed Sargassum crassifolium using both filter tools. Quality of sodium alginate (yield, viscosity, gel strength, syneresis, whiteness, moisture content, ash, and pH) was determined. The result showed that the viscosity, gel strength, syneresis, and whiteness of alginate obtained using filter press showed the best result. The yield of sodium alginate produced by filter press was 10.91±4.33%, with characteristics of viscosity 82.66±112.46 cP, gel strength 353.54±184.51 g/cm2, syneresis 2.99±0.55%, whiteness 60.53±9.09%, moisture content 13.31±0.77%, ash 26.69±0.82% and pH 6.05±0.57.  Based on a parameter of alginate (yield, moisture content, ash, and pH) showed that vibrator method produced alginate with better characteristics. The sodium alginate produced has average yield 19.22±5.68%, viscosity 57.5±21.79 cP, whiteness 29.7±4.45%, gel strength 327.63±55.15 g/cm2, syneresis 4.34±0.78%, moisture content 10.23±1.68%, ash 24.94±4.41% and pH 7.03± 2.60. Operationally the filter press was more effective and efficient in filtering to result from Na-alginate compared to the screen vibrator.

scholarly journals The brown seaweed Cystoseira schiffneri as a source of sodium alginate: Chemical and structural characterization, and antioxidant activities

2020 ◽  
pp. 100873
Author(s):  
Abdelkarim Benslima ◽  
Sabrine Sellimi ◽  
Marwa Hamdi ◽  
Rim Nasri ◽  
Mourad Jridi ◽  
...  
Keyword(s):  
Sodium Alginate ◽  
Structural Characterization ◽  
Antioxidant Activities ◽  
Brown Seaweed

scholarly journals EVALUATION OF THE ANTITYROSINASE AND ANTIOXIDANT POTENTIAL OF ZINC OXIDE NANOPARTICLES SYNTHESIZED FROM THE BROWN SEAWEED-TURBINARIA CONOIDES

2017 ◽  
Vol 9 (5) ◽  
pp. 116 ◽  
Author(s):  
Khoushika Raajshree R. ◽  
Brindha Durairaj
Keyword(s):  
Antioxidant Activity ◽  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Brown Seaweed ◽  
Oxide Nanoparticles ◽  
Zno Nps ◽  
Skin Whitening ◽  
Algal Extract ◽  
Turbinaria Conoides ◽  
Hydroethanolic Extract

Objective: The present study was designed to evaluate the antioxidant and antityrosinase properties of zinc oxide nanoparticles (ZnO-NPs) synthesized from brown seaweed Turbinaria conoides.Methods: Zinc Oxide Nanoparticles were synthesized from the hydroethanolic extract of Turbinaria conoides. Ultraviolet-Visible Spectrophotometric analysis was performed to confirm the formation of ZnO-NPs. Size, morphology and elemental composition of ZnO-NPs were analysed using SEM-EDAX. The antioxidant activity of the synthesized zinc oxide nanoparticles was investigated by total antioxidant capacity (phosphomolybdenum method), reducing power assay and ferric reducing antioxidant power assay (FRAP). Anti tyrosinase activity was assessed to validate the skin whitening ability of the ZnO-NPs. Results: The antioxidant activity of ZnO-NPs synthesized from hydroethanolic extract of Turbinaria conoides was maximum when compared with that of the hydroethanolic algal extract. The antityrosinase activity of ZnO-NPs was found to be maximum with 75% tyrosinase inhibition when compared to hydroethanolic algal extract which had 56% inhibition at 250μg/ml concentration.Conclusion: Overall our study provides a firm evidence to support that antityrosinase and antioxidant activities are exhibited by ZnO-NPs synthesized from hydroethanolic extract of Turbinaria conoides and it might be used as an antioxidant and as a source of skin whitening agent in cosmetics.

scholarly journals Formulation and Evaluation of Sunscreen Cream from Moringa oleifera and Turbinaria conoides

2021 ◽  
Vol 324 ◽  
pp. 05001
Author(s):  
Rini Yanuarti ◽  
Nurfitriyana Nurfitriyana ◽  
Muhammad Zuchryanto ◽  
Ginanjar Pratama ◽  
Aris Munandar ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Moringa Oleifera ◽  
Ph Value ◽  
Brown Seaweed ◽  
Sun Protection ◽  
Protection Factor ◽  
Turbinaria Conoides ◽  
Sun Protection Factor ◽  
And Control ◽  
Good Homogeneity

Research on the combination of natural ingredients from brown seaweed and Moringa, to be used as sunscreen has been nothing. Therefore, the objective of this study was to determine the best formulation from sunscreen evaluation. In this study, the ratio of Moringa oleifera and Turbinaria conoides was 1:1 (cream L), 2:1 (cream M), 1:2 (cream N), and control (no added both of natural ingredients) (cream K). The evaluation of sunscreen cream by Sun Protection Factor (SPF) activity, viscosity, pH, homogeneity, and microbial test. SPF values in this study from cream K, L, M, and N were 0.75±2.31, 17.80±0.97, 9.48±1.41, and 15.97±2.38, respectively. Viscosity values were 22,400 cPs for cream K; 32,400 cPs for cream L; 26,000 cPs for cream M; and 32,800 cPs for cream N. The pH value of sunscreen cream in cream K, L, M, N were 7.30±0.02, 6.51±0.02, 6.38±0.04, and 6.43±0.04, respectively. In all of the treatments of sunscreen cream, microbial tests are absent and have good homogeneity. The ratio of 1:1 (cream L) between M. oleifera and T. conoides has a good synergistic effect to ward off UV B light, therefore cream L is the best sunscreen cream in this study.

Sodium Alginate Extraction by Enzyme-Ultrasonic Combined Method

2012 ◽  
Vol 535-537 ◽  
pp. 2326-2329
Author(s):  
Yu Lei ◽  
Bing Du ◽  
Yong Fang Qian ◽  
Fang Ye ◽  
Lai Jiu Zheng
Keyword(s):  
Sodium Alginate ◽  
Extraction Rate ◽  
Ftir Spectrum ◽  
Solution Time ◽  
Ultrasonic Power ◽  
Combined Method ◽  
Traditional Methods ◽  
Enzyme Solution ◽  
Optimum Parameters ◽  
Alginate Extraction

Enzyme-Ultrasonic combined method is researched to extract sodium alginate, and the parameters are optimized as following: enzyme (cellulose and protease add content) 8%(w/v), pH 4, temperature 50°C, ultrasonic power 160 W, enzyme solution time 3.5 h. The FTIR spectrum shows the extraction material is sodium alginate. By the optimum parameters, the extraction rate is 23.1%, which is 27% higher than the traditional methods. Therefore, the extraction of sodium alginate can be increased observably by enzyme-ultrasonic combined method.

scholarly journals Concentration Optimization Na2CO3 Alginates From Turbinaria sp. As Raw Material Electrolite Polymer For DSSC

2021 ◽  
Vol 3 (1) ◽  
pp. 30-33
Author(s):  
Dinda Liyana ◽  
Nurhadini Nurhadini ◽  
Ristika Oktavia Asriza
Keyword(s):  
Moisture Content ◽  
Polymer Electrolyte ◽  
Brown Seaweed ◽  
Electrical Energy ◽  
Raw Material ◽  
Ftir Analysis ◽  
Optimum Conditions ◽  
Percentage Yield ◽  
Optimum Extraction ◽  
Alginate Extraction

Polymer electrolyte DSSC is one component of the application can convert solar energy into electrical energy. The polymer electrolyte can be synthesized from brown seaweed Turbinaria sp. However, the optimization of alginate extraction has not been widely carried out, so the aim of this study was to determine the optimum conditions for variations in the concentration of Na2CO3 (3%, 5%, 7%) in extracts from Turbinaria sp as raw material for polymer electrolyte synthesis for DSSC. Alginate optimum extraction results known by percentage yield, moisture content and functional groups using FTIR analysis. The optimum conditions for alginate extraction from Turbinaria sp are Na2CO3 5% and a temperature of 60 oC with a yield of 23.81% and a moisture content of 8.1%. FTIR results also indicate the intensity of the strongest mannuronic seen at 822cm-1 wave numbers.

Sign in / Sign up

Export Citation Format

Share Document