Eucheuma Cottoni Research Articles

Factors Affecting Seaweed (Eucheuma cottoni) Production in Banten Province (Case in Lontar Village)

Seaweed is one of the plants that has a lot of potential as a functional food ingredient, active ingredient of drug preparation and even cosmetics that are quite natural in producing various pharmacological activities both as a source of antioxidants, antibacterials, antimicrobials and anticancer. Seaweed is currently a potential asset for areas that are able to produce it to meet the increasing market needs. Lontar Village, located in Banten Province, is one of the main seed producing areas. However, seed production factors are one of the main indicators that need to be used as a standard in this study, such as the length of the rope span, age characteristics, education characteristics, characteristics of the seed farmer's business experience. This type of research is quantitative and data is obtained primarily and secondarily. The data obtained were analyzed using the SPSS 26 program. The results of the study showed that the factors that influence seaweed production in Banten Province, especially Lontar Village, are influenced by the length of the rope span, age characteristics, education characteristics, characteristics of the seaweed farmer's business experience. The conclusion is that seaweed production is influenced by various characteristics, namely age, education, and seaweed farming experience.

Exergetic and exergoeconomic analyses of Eucheuma cottoni residue biorefinery for co-production of polylactic acid and electricity

This research evaluates the thermodynamic performance of three polylactic acid (PLA) biorefinery scenarios, utilizing Eucheuma cottoni residue (ECR), as raw material. The thermodynamic properties of three biorefinery scenarios were obtained through Aspen Plus® V14 to conduct exergy analysis. Ultrasonic-assisted molten salt hydrates minimized the amount of ECR needed by 80.8 % to produce 1000 kg/h of PLA. The fermentation unit exhibited the highest destroyed exergy in Scenarios 1 and 2, while it was the combined heat and power (CHP) unit for Scenario 3. Scenario 3, integrated with power generation and a proper waste management system, had the highest functional exergy efficiency (22.33 %). Exergoeconomic analysis was conducted after obtaining results from exergy analysis. The unit exergoeconomic cost of PLA was 188 USD/GJ in Scenario 1, while it was 187.88 USD/GJ in Scenarios 2 and 3. The unit exergoeconomic cost of electricity and fertilizer is 35.91 USD/GJ and 250.31 USD/GJ, respectively. Pretreatment and hydrolysis unit had the highest exergoeconomic factor. LA recovery unit of all biorefinery was found to have an adequate level of exergoeconomic factor.

The Effect of Coconut Water and Temperature on Carrageenan Extraction

Eucheuma cottoni J. is one type of seaweed that is widely cultivated in Indonesia. The economic value of seaweed can be increased by processing seaweed into semi-finished products such as carrageenan. This research was conducted to determine the effect of the amount of coconut water as a solvent and extraction temperature on the characteristics of carrageenan. This research consists of two stages. The first stage is carrageenan extraction using a factorial Randomized Block Design (RBD). The results of the observational data obtained will be processed using analysis of variance with confidence levels = 5 % and 1 %. Significantly different treatments will be subjected to further statistical tests using DMRT (Ducan’s Multiple Range Test) with a significance level of 5 %. The results showed that the best treatment for carrageenan extraction was obtained from the amount of coconut water 25 mL g-1 and the extraction temperature of 90 °C with a yield value of 52.95 %, gel strength of 483.86 g cm-2, viscosity 50 cP, and water content 6.87 %.

Chemical and antioxidant characteristics on rice crackers fortified with seaweed Eucheuma cottoni and dayak onion

This study aims to observe the addition of seaweed and Dayak onions to rice crackers on the nutritional content and antioxidant activity. This study has been carried out at the Nutrition Laboratory, University of Borneo Tarakan. The seaweed used is Eucheuma cottoni. Making crackers consists of several steps, namely material preparation, dough making, molding, and drying. The results given information that the addition of seaweed and Dayak onions had an effect on the nutritional content and antioxidant activity. Puli crackers fortified with seaweed and Dayak onions contain 8.04% protein, 1.07% fat, 1.77% water, 5.96% ash, and 83.16% carbohydrates. The antibiotic activity of seaweed and Dayak onion fortified Puli crackers using the DPPH method was greater than that of commercial Puli crackers, which was 4.07%.

CONSUMER PREFERENCES OF BIODEGRADABLE TOTE BAG PRODUCTS FROM SEAWEED CARRAGEENAN (Eucheuma cottoni)

Biodegradable tote bag is a processed carrageenan product from seaweed (Eucheuma cottoni) which is processed into fashion products. Consumer preferences are used to see consumer choices in determining the most preferred attributes of biodegradable tote bag products. This study aimed to see consumer preferences for biodegradable tote bag products. This research was conducted in Cibinong District, Bogor Regency as a general segmentation and Jatinangor District, Sumedang Regency as a special segmentation. The research method used was quantitative descriptive with analysis using frequency distribution and the Mann-Whitney U Test. The sampling technique was purposive sampling. The results showed that, out of the 6 attri-butes, there were 2 attributes that had a real difference between general segmentation and student segmentation, namely color attributes and the size of biodegradable tote bag products. Meanwhile, the other 4 attributes have no noticeable difference, namely texture, aroma, water resistance, and weight durability. Consumer preferences in general segmentation and the majority of students choose biodegradable tote bags that have a dark green color, smooth texture, no aroma, resistant to water, the ability to withstand a weight of > 1 kg, and measuring 30 x 40 cm.

Cost and Income Analysis of Seaweed Cultivation Using the Off-Base Method in Seriwe Village Jerowaru Subdistrict East Lombok District

As part of the world's Coral Triangle, Indonesia has economically valuable seaweed (Eucheuma cottoni), and thousands of species worldwide can grow well in Indonesian waters. The research aims to determine the costs and income of offshore seaweed cultivation in Seriwe Village, Jerowaru District. The study uses descriptive methods with data collection techniques through direct interviews. The research conclusion is that the cost of cultivating seaweed is IDR4,762,122 per area of ​​developed land or IDR103,524,391 per hectare, and the income is IDR7,978,878 or IDR173,116,913 per hectare. From a regulatory perspective, all parties should monitor every policy issued by the regional government and provide intensive assistance to cultivators using a group approach by introducing cultivation techniques, innovation, and post-harvest management that have added value.

KOMPONEN FITOKIMIA DAN AKTIVITAS ANTIOKSIDAN RUMPUT LAUT EUCHEUMA COTTONII DI PERAIRAN DESA PAJUKUKANG BANTAENG

Red seaweed (Eucheuma cottoni) is a plant that has high cultivation potential and is growing rapidly. Bantaeng Regency is one of the 15 seaweed processing centers in Indonesia. The use of seaweed is very diverse, both for food, feed, fertilizer, cosmetics and pharmaceuticals. This is related to the content of nutrients, minerals and bioactive compounds contained in seaweed. This research aims to determine the water content, ash content, phytochemical compound and antioxidant activity of red seaweed in the waters of Pajukukang Village Bantaeng. The research result showed that water content and ash content of red seaweed were 7.21%,17.626% respectively. Red seaweed ethanol extract contains alkaloids, flavonoids, saponins, and steroids. The result of antioxidant test showed that the red seaweed ethanol extract has weak antioxidant activity with IC50 value of 961,83 ppm.

The Relationship between the Level of Knowledge of Quality and Price of Biodegradable Tote Bags from Seaweed Carrageenan Eucheuma Cottoni against Purchasing Decisions Case Studies in Cibinong District, Bogor Regency and Jatinangor District, Sumedang Regen

This study aims to see the relationship between the level of knowledge, product quality, and price of biodegradable tote bag products from seaweed carrageenan (Eucheuma cottoni) on purchasing decisions so that product improvements and modifications can be made. The research was conducted in Cibinong District, Bogor Regency as a general segmentation, and in Jatinangor District, Sumedang Regency as a student segmentation. This study used quantitative descriptive method with spearman rank correlation test. Samples were taken using purposive sampling techniques as many as 80 respondents. Based on the results of research on the consumer characteristics of biodegradable tote bags, which are dominated by women with an age range of 21-25 years, types of student work with income levels > IDR 1,000,000, have used tote bags with intensity of use every month and from fabric. The results of the spearman rank correlation test were obtained for the level of knowledge, product quality, and product price, namely 0.538, 0.474, and 0.505. Product quality and product price have a strong relationship with the purchase decision of biodegradable tote bags from seaweed carrageenan (Eucheuma cottoni). Meanwhile, the level of knowledge has a strong relationship to the decision to purchase biodegradable tote bags from seaweed carrageenan (Eucheuma cottoni).

Strategi Bauran Pemasaran Rumput Laut <em>Eucheuma cottoni</em> di Kecamatan Mandalle Kabupaten Pangkep

This study aims to determine the marketing mix strategy for Eucheuma cottoni seaweed in Mandalle District, Pangkep Regency. This seaweed is one of the main commodities of Pangkep Regency from the fisheries sector. The main obstacles faced by seaweed cultivators are marketing and price stability. This research is important as information material for cultivators, entrepreneurs and the government in pursuing this business. The research was conducted from December to February 2023, in Mandalle District, Pangkep Regency. The study population consisted of all 207 Euchuma cottoni cultivators. Determination of the number of samples using the slovin formula with the number of samples selected 70 people. To find out which cultivators were sampled, a simple random sampling technique was used. Data collection was carried out using interviews, observation, questionnaires, and focus group discussions. Data analysis using SWOT analysis. The results showed that the new marketing of Euchuma cottoni seaweed in Mandalle sub-district, namely: continuing to provide seeds at affordable prices and providing counseling in stages, optimizing seaweed production, increasing the potential of seaweed already exist, provide training in stages, expand, and maintain marketing networks, increase product selling prices and access to capital.

Study of Plankton Aspects for the Development of Eucheuma Cottoni Seaweed Cultivation at Barombong Beach, Makassar, Indonesia

This research aims to determine the possibility of developing Eucheuma cottoni seaweed cultivation based on the aspect of the presence of plankton on Barombong Beach, Makassar. This research was conducted for 2 (two) months, namely from February to March 2021, by conducting 4 (four) sampling times. Determination of research locations based on differences in environmental characteristics at each research location. Station 1 (ST 1) is located around residential areas, Station 2 (ST 2) is located around the Barombong sports building, and Station 3 (ST 3) is located around the Jeneberang River Estuary. The tool used is a plankton net to capture plankton in the waters. The plankton parameters observed included plankton abundance, diversity index, and dominance. The data that has been collected is then analyzed by descriptive analysis. The results showed that the highest level of plankton abundance occurred at Station 2 compared to other locations. The plankton diversity index in this research was quite high, with the highest level of diversity index also at Station 2. Furthermore, the highest dominance aspect also occurs at Station 2 compared to other stations. However, from the aspect of the presence of plankton, the research location is still possible to develop Eucheuma cottoni seaweed cultivation.

Coastal Communities’ Empowerment through Seaweed (Eucheuma cottoni): Potency, Suitability, and Local Participation

Indonesia is the largest producer of seaweed contributed by coastal communities, but they still live in precarious conditions. To bolster the seaweed cultivation and alleviate poverty, a coastal community’s empowerment was studied in Salabangka archipelagoes through the evaluation of its largely produced seaweed (Eucheuma cottoni) potency (total production and investment opportunities), suitability for seaweed cultivation (environmental parameter and suitability), and local participation (interviews) in 2011. Seaweed production in Salabangka archipelagoes was estimated from 2009 to 2010 data. For the investment opportunities of seaweed cultivation, initial investments were assessed for the medium-scale semi refined carrageenan (SRC) model and the Carrageenan industry model. Subsequently, the profit and loss were projected for the upcoming five years. To estimate the investment qualification, several criteria were used, i.e., Net Present Value (NPV), Internal Rate Return (IRR), Net Benefit Ratio (Net B/C), Pay Back Period (PBP), and Profitability Index Methods (PI). The factors that influence the local participation and perceptions of coastal communities in Salabangka archipelagoes were analyzed based on the degree of perception and participation obtained from interviews in substation sites. The seaweed potency reveals a good prospect indicated by the increase of seaweed production and profitable investment. The environmental condition and qualifications support the suitable habitat for seaweed cultivation. Local participation shows a good indication of the support of the coastal communities. In the future, the government must secure the policy, allocate funding, and forge a partnership with the local bank to bolster the seaweed cultivation in the Salabangka archipelagoes.

Analysis of Water Quality for the Development of Eucheuma Cottoni Seaweed Cultivation in Mandalle Beach, Pangkep Regency, Indonesia

The purpose of this study was to determine the possibility of developing Eucheuma cottoni seaweed cultivation around Mandalle Beach, Pangkep Regency, South Sulawesi Province, Indonesia based on the physical and chemical aspects of the waters and the substrate of the research site. Determination of research locations based on differences in environmental characteristics at each research location. Location A is located to the north of Mandalle Beach, Location B is around the Pier of Pangkep State Agricultural Polytechnic campus and location C is in the southern part of Mandalle Beach which is located around a mangrove forest. The data obtained were collected and analyzed by descriptive analysis. The results showed that the research location consisting of location A, location B and location C had the potential for the development of Eucheuma cottoni seaweed cultivation. Around Mandalle Beach in terms of physical and chemical aspects of waters and substrates.

Bioplastic Production from Eucheuma Cottoni


 
 
 Plastic waste has become a global problem because it causes environmental pollution. This is because plastic waste is difficult to decompose. There have been numerous solutions proposed, one of which is theuse of bioplastics. In this research, the bioplastics were made from third- generation biomass, namely the eucheuma cottoni. Eucheuma cottoni is contains biopolymer carrageenan, a carbohydrate with unit structures consisting of d-galactose and 3,6 anhydrogalactose with glycosidic bonds. Goal this research is study the effects of sorbitol plasticizer content and bioplastics manufacturing temperature on bioplastics, tensile strength, elongation, and biodegradation rate. The bioplastics were made by extracting 10 grams of eucheuma cottoni powder in 200 ml of distilled water. The algae extract was added with sorbitol (plasticizer) and heated at various temperatures from 45°C until 60°C. The mixture was poured into a mold tin and dried in the oven to a constant weight. The resulting bioplastics were then characterized to determine the tensile strength and biodegradation rate. The results showed that increasing the plasticizer content from 3.5% reduced the tensile strength, however, it increased the elongation and biodegradation rate. The optimal plasticizer content was 4% with a tensile strength value of 4.8309 Mpa, elongation of 24.1548%, and biodegradation rate of 26.9392%. The temperature variable showed that increasing the temperature of making bioplastics could reduce tensile strength, increase elongation and biodegradation rate of bioplastics. The optimum
 temperature for making bioplastics at 45oC obtained a tensile strength of6.28 Mpa and an elongation of 20.67%. The biodegradation rate was 39.6665%, and the best sorbitol content was received at 4%.
 
 

The effectivity of red algae as biosorben to reduce the effect of laboratory wastewater

The research on laboratory wastewater treatment using Eucheuma cottoni as biosorbent was carried out to find the right composition of wastewater and algae that is effective in reducing the pollutant contained in the laboratory wastewater. The dosages of biosorbent were varied with 100 gr, 200 gr, and 300 gr were added into 1000 ml of wastewater mixed with 1000 ml of sea water. Chemical parameters such as pH, COD and NH3 and physical parameters such as odor, color, turbidity were analyzed and in accordance with contact time parameters of H1 (1 hour), H2 (12 hours) and H3 (24 hours). The percentage of pollutant reduction in wastewater was calculated by comparing the value before treatment with the value after treatment to get the right composition of the biosorbent to get the highest reduction percentage. The percentage of pollution reduction in the value of each parameter, showed that the third treatment with 300 gr of biosorbent was the most effective condition in reducing the pollutant contained in laboratory wastewater with the final outcomes were pH 6.67 COD 74.67 mg / L, NH3 0.731 mg / L, scale 1 color 40 PtCo and turbidity 37.6 NTU. The results are in accordance with Wastewater Quality standards Permen LH No. 5 of 2014.

Physicochemical properties of semi-refined carrageenan by bleaching pretreatment

Judul: Sifat fisikokimia semi-refined carrageenan dengan bleaching pretreatment Title: Physicochemical properties of semi-refined carrageenan by bleaching pretreatment Produk semi refined carrageenan (SRC) merupakan hasil pengekstrakan alga merah dari tumbuhan lontar. Semi refined carrageenan merupakan salah satu unsur dalam Eucheuma cottonii. Karaginan merupakan sulfat galaktan yang berasal dari alga merah (Rhodophyta), tersusun dari D-galaktosa yang terikat secara dalam 5-007-1,3 ikatan β-1,4. Kondisi ekstraksi mempengaruhi kualitas produk karaginan semi murni. Kondisi ekstraksi seperti perlakuan awal, waktu, dan suhu ekstraksi sangat berpengaruh terhadap hasil produk SRC. Penelitian ini bertujuan untuk menyelidiki sifat fisikokimia dari karaginan tyang diekstrak dari rumput laut merah yang telah dilakukan perlakuan awal pemutihan fisik. Hasil terbaik pada variasi waktu ekstraksi dan konsentrasi pelarut adalah pada suhu 80 o C pada 2 jam. Sifat fisikokimia karaginan yang paling baik adalah kekuatan gel 715 gram/cm 2 , kadar air 8%, kadar abu 18%, kadar sulfat 11%, viskositas tujuh cP, titik gel 47,7 o C, titik leleh 57,8 o C, tingkat putih 61%, dan tidak adanya logam berat dalam produk SRC. Analisis FTIR menunjukkan bahwa SRC yang diekstraksi sebagian besar terdiri dari kappa-karaginan. Metode atomic absorption spectrometry (AAS) digunakan untuk menentukan kadar logam substansial dalam SRC, dan hasilnya memenuhi standar FAO. The semi-refined carrageenan (SRC) product is the result of extracting red algae from the palm plant. Semi refined carrageenan is one of the elements in Eucheuma cottonii. Carrageenan is a sulfated galactan derived from red algae (Rhodophyta), composed of D-galactose, which is deeply bonded 5-007-1.3 -1,4 bonds. Extraction conditions affect the quality of semi pure carrageenan products. Extraction conditions such as pretreatment, time, and extraction temperature significantly affect the yield of SRC products. This study aimed to investigate the physicochemical properties of carrageenan extracted from red seaweed, which had been pretreated with physical bleaching. The best results on the variation of extraction time and solvent concentration were at 80 o C at 2 hours. The best physicochemical properties of carrageenan are gel strength 715 gram/cm 2 , water content 8%, ash content 18%, sulfate content 11%, viscosity seven cP, gel point 47.7 o C, melting point 57.8 o C, whiteness 61%, and the absence of heavy metals in SRC products. FTIR analysis showed that the extracted SRC consisted mainly of kappa-carrageenan. The atomic absorption spectrometry (AAS) method was used to determine the actual metal content in SRC, and the results met FAO standards.

Bioactivity profile of three types of seaweed as an antioxidant, UV-protection as sunscreen and their correlation activity

Seaweed is one of the marine algae that have antioxidant sources because it contains bioactive compounds such as carotenoids, phenol compounds and their derivatives, polysaccharide sulfate, and vitamins. Algae consist of three major groups namely brown algae (phaeophyta), red algae (rhodophyta), and green algae (chlorophyta). The purpose of this study was to determine the bioactivity profile of seaweed extract Eucheuma cottoni, Sargassum polycystum and Caulerpa racemosa so that it could be developed as a cosmetic raw material. The three types of seaweed were extracted by maceration and bioactivity testing was carried out as an antioxidant using the ABTS radical reduction method and bioactivity testing as UV-protection with the parameters of the percentage transmission of erythema, pigmentation and Sun Protective Factor (SPF). The results showed that C. racemosa extract provided a very strong antioxidant activity and was able to protect the skin from UV exposure with an SPF value that was categorized as ultra-protection. Antioxidant activity of the three types of seaweed is positively correlated to the protective effect based on the SPF value.

POTENSI EKSTRAK RUMPUT LAUT (Eucheuma cottoni) SEBAGAI ANTIOKSIDAN

Seaweed ( Eucheuma cottoni ) is a marine biota that is often used as an additive to pharmaceutical products that function as thickener. But seaweed, which is rich in carrageenan, also contains vitamin C which has the potential as an antioxidant. The method used was to test the antioxidant activity of seaweed extract ( Eucheuma cottoni ) with the DPPH (1,1-Diphenyl-2-Picrylhdrazil) damping method. The test sample was in the form of seaweed ethyl acetate extract, where the standard standard of comparison of quarsetin and seaweed extract samples was made in 5 variations of concentration. The standard curve produced by quarsetin with concentrations of 2, 4, 6, 8, 10 ppm at the maximum wavelength DPPH 514,942 nm. The results obtained by the Kuarsetin standard with regression values y = 6.4765x + 7.567, the correlation value r = 0.99959 and IC 50 = 6.48 (very strong antioxidant activity) while the ethyl acetate extract of seaweed with concentrations of 600, 800, 1000, 1200, 1400 ppm % inhibition was obtained with regression values y = 0.0104x + 16.708, the correlation value r = 0.9972 and IC 50 = 3201.15 (very weak antioxidants). So it can be concluded that the seaweed ethyl acetate extract has the potential for antioxidant activity.

Antibacterial Test from Ekstract of Kirinyuh Leaves to Inhibit Vibrio sp. Bacteria Growth which Caused Ice-ice Diseases in Seaweed (Eucheuma cottoni)

Indonesia is the largest archipelagic country so it has enormous coastal potential as well. One of the coastal potential that has great benefits for the community is seaweed cultivation. Production of seaweed cultivation in NTB province in 2012 reaches 657,700 tons and increase every year. But in fact, the development of seaweed cultivation business have several obstacles, one of them is the presence of ice-ice disease that infects the seaweed Eucheuma cottoni species. This ice-ice disease causes a decrease in the quality and quantity of seaweed causing crop failure. This ice-ice disease attacks the thallus in the seaweed and causes the seaweed thallus to become brittle and breaks easily due to the lysis of epidermal cells and chloroplasts. The ice-ice disease is caused by a bacterial infection of Vibrio sp. which occurs when seaweed become stress due to adverse environmental conditions such as rising temperatures and salinity. The ice-ice disease can be threat using antibacterial compounds which found in plants such as tannins, flavonoids, and saponins. One of the plants that contain antibacterial is kirinyuh (Chromolaena ordorata). The antibacterial content on kirinuyuh leaves is extracted using a simple maceration method with aquadest as a solvent, and yields of extraction was diluted into concentrations of 20%, 40%, 60%, 80%, and 100%. Leaf extract of kirinyuh with variation of concentration was tested in vitro condition by using diffusion agar method with paper disk on solid NB media which has been overgrown with Vibrio sp. The result of in vitro test using diffusion agar method with paper disk was obtained that kirinyuh extract is able to inhibit the growth of Vibrio sp. bacteria with the widest inhibit zone is 10.315 mm at 100% concentration.

Analysis of probiotic characteristics and LAB viability of seaweed hydrolysis (Eucheuma cottonii)

Eucheuma cottoni is one of the most utilised marine commodities for carrageenan production. Carrageenan can also be used for probiotics production. This study aimed to obtain bacterial growth media with the highest probiotic activity before and after drying. The study consisted of several stages, include: pre-hydrolysis, hydrolysis with inactive enzymes, chemical and microbiological characterisation, drying with spray drying, and lactic acid bacteria (LAB) viability test. The results show that the untreated sample had the best results compared to that of the filtering and precipitation samples. The untreated sample had reducing sugar content of 0.35%, total sugar 2.81%, pH 5.37, total acid 0.147%, and total LAB of 8.2x108 CFU/mL. After drying with spray drying, the LAB viability reduced to 9.7x106 CFU/mL.

EKSTRAKSI DAN KARAKTERISASI KARAGENAN KASAR RUMPUT LAUT Eucheuma cottoni

Research on extraction and characterization of crude carrageenan from seaweed (eucheuma cottoni) has been carried out. The research aims to determine the optimum extraction time and temperature of crude carrageenan extract from seaweed (eucheuma cottoni). Crude Carrageenan was extracted from seaweed (eucheuma cottoni) by dissolving crushed seaweed in 8% KOH with variation of extraction times are 1 hour, 1.5 hours, 2 hours, 2.5 hours and 3 hours, and temperatures are 50, 70, 90, 110 and 130oC. The results were analyzed using a Completely Randomized Design (CRD). The results show that the optimum extraction time in producing the best quality of crude carrageenan is 2 hours at 50oC with percentage is 78.4%, viscosity is 9.155 cP, sulphate content is 3.102% and gel strength is 7 g.
 Keywords : eucheuma cottoni seaweed, crude carrageenan, characterization