Article
Fisheries
Nova Francisca Simatupang, Petrus Rani Pong-Masak, Pustika Ratnawati, Agusman, Nicholas A. Paul, Michael A. Rimmer
Summary: Indonesia is the largest producer of carrageenophyte seaweeds, with substantial seasonal and regional variation in production and product quality of farmed K. alvarezii. Evaluation of K. alvarezii cultured at 10 different geographic locations in Indonesia showed highly variable production and product quality data. These results can help select and evaluate better-performing K. alvarezii cultivars to improve seaweed farming productivity in Indonesia.
AQUACULTURE REPORTS
(2021)
Article
Biotechnology & Applied Microbiology
Clovis Murilo Pires, Giovana Carolina Bazzo, Pedro Luiz Manique Barreto, Carlos Manoel do Espirito Santo, Thallis Felipe Boa Ventura, Anna Gabrielle La Macchia Pedra, Ticiane Rover, Malachy McGovern, Leila Hayashi
Summary: The study aimed to evaluate BFT effluent as a fertilizer for red seaweed cultivation and its effects on carrageenan yield and quality. Results showed that BFT effluent can replace von Stosch solution in tank cultivation of K. alvarezii, and the seaweed, along with bacteria and microalgae from the effluent, can function as an effective biofilter in IMTA systems.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Eunice Lua Hanry, Noumie Surugau
Summary: This study developed biodegradable thin bioplastic sheets using whole biomass of the red seaweed Kappaphycus sp. and commercial sodium alginate. Increasing the sodium alginate content resulted in decreased visual appearance but improved elasticity and water barrier properties. All the bioplastics completely degraded within 15 days.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Review
Engineering, Environmental
Maria Eggertsen, Christina Halling
Summary: Farming of eucheumatoid seaweeds is a significant livelihood option in tropical coastal areas, with generally low environmental impact but potential introduction of alien species and alterations of local environment. Despite decades of practice, knowledge on the environmental impacts of farming non-native eucheumatoid haplotypes remains limited.
Article
Fisheries
La Ode Muhammad Aslan, Aldi La Embi, Rahmat Hasriah, Ardin Ansa, Wa Iba, Andi Besse Patadjai, Manat Rahim, Armin
Summary: The study attempted to graft Kappaphycus alvarezii in Southeast Sulawesi, Indonesia, and found that intra-generic grafting using the straight-slipped position method had a higher success rate, while the side-slipped position method was slower.
AQUACULTURE RESEARCH
(2021)
Article
Construction & Building Technology
Asma Boukhatem, Kamal Bouarab, Ammar Yahia
Summary: The effect of different conditioning and processing parameters of Kappaphycus alvarezii seaweed solutions on the performance of cement suspensions was evaluated. The use of K. alvarezii as a viscosity-modifying admixture improved the rheological behavior of cement suspensions. It can be used as a substitute for traditional (kappa)-carrageenan without prolonging the dormant period of cement suspensions.
ACI MATERIALS JOURNAL
(2023)
Article
Chemistry, Applied
Veeramani Rajasekar, Paramasivan Karthickumar, Ashokkumar Hozen Richhie Rose, Nagarajan Manimmehalai, Dharmaraj Subhasri
Summary: The purpose of this study was to explore the potential use of carrageenan extracted from marine red seaweed and develop a biodegradable film. The results showed that the mechanical properties and water vapor permeability of the biodegradable film increased with increasing concentrations of carrageenan and rice starch, and the optimized film structure was obtained with 1.5% carrageenan and 2% rice starch concentrations.
PIGMENT & RESIN TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Pradipkumar Vaghela, Arun Kumar Das, Khanjan Trivedi, K. G. Vijay Anand, Pramod Shinde, Arup Ghosh
Summary: Kappaphycus alvarezii extract contains a variety of bioactive compounds, such as phenols, flavonoids, and steroids, which play important roles in plant growth promotion, hormonal signaling, photo-protection, and disease resistance. These compounds indicate the potential of seaweeds in various industries, including pharmaceuticals.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Biotechnology & Applied Microbiology
Gilles Lepoint, Gaetan Tsiresy, Melanie Deydier, Frederic Pascal, Bruno Frederich, Igor Eeckhaut
Summary: Seaweed farming for carrageenan production is becoming more economically important. However, farmed algae can host epiphytes, which can be detrimental and cause economic losses. In this study, we investigated the impact of the epiphyte Polysiphonia sp. on the nutrient acquisition of the farmed host K. alvarezii. Our results showed that the epiphytes could outcompete their hosts in nutrient uptake and act as true parasites by diverting some of the host's resources. This has implications for biocontrol and highlights the importance of choosing nutrient-rich areas for seaweed farming.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Environmental Sciences
Nurjannah Nurdin, Evangelos Alevizos, Rajuddin Syamsuddin, Hasni Asis, Elmi Nurhaidah Zainuddin, Agus Aris, Simon Oiry, Guillaume Brunier, Teruhisa Komatsu, Laurent Barille
Summary: This study demonstrates the use of UAV remote sensing for estimating the biomass and yield of Kappaphycus seaweed aquaculture, providing a promising approach for precision farming.
Article
Biotechnology & Applied Microbiology
Ghanthimathi Subramaniam, Noumie Surugau, Nor Azwady Abd Aziz, Radhiah Shukri, Kharidah Muhammad
Summary: This study examined the effects of cultivation type and maturity stages on the arsenic (As) species concentration and carrageenan content in three Kappaphycus species. It was found that As species concentration differed between longline and off-bottom cultivation methods, with different order of dominance. Carrageenan content was found to have a significant impact on As species concentration. The findings suggest that longline cultivation for up to 40 days can provide high carrageenan content with less risk of As species contamination.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Chemistry, Applied
Arun Kumar Das, Rosy Alphons Sequeira, Tapan Kumar Maity, Kamalesh Prasad
Summary: Seven different bio-based ionic liquids were investigated for their ability to coagulate kappa-carrageenan, with two showing promising results in terms of polysaccharide extraction yield and properties similar to the conventional method. This coagulation method using bio-based ionic liquids may serve as a suitable alternative for eco-friendly downstream processing of carrageenophytes.
FOOD HYDROCOLLOIDS
(2021)
Article
Marine & Freshwater Biology
Jaclyn Higgins, Paloma Peon Torre, Jose M. Rico
Summary: The exploitation of Gelidium corneum in the Cantabrian Sea has significant economic and cultural importance. This study examines the sustainability of the hand plucking method and finds that it does not severely affect the biomass and distribution of G. corneum along the Asturian coast.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
P. A. J. van Oort, N. Rukminasari, G. Latama, A. Verhagen, A. K. van der Werf
Summary: The Bio Economic Seaweed Model (BESeM) is a model designed for simulating tropical seaweed cultivation with multiple harvests per year, clonal reproduction and labor intensive activities. It can estimate biomass growth and harvested chemical concentration, and is applicable to different locations and species.
JOURNAL OF APPLIED PHYCOLOGY
(2022)
Article
Fisheries
Thilaga Sethuraman, Shanmugam Munisamy, Ganesan Meenakshisundaram, Anicia Q. Hurtado, Ganesh Doss
Summary: This study optimized the regeneration of polyploidy from young thallus segments of Kappaphycus alvarezii for genetic improvement. The results showed differential response in callus proliferation and development of new thallus when Kappaphycus thallus segments were cultured on sterile sea water supplemented with different combinations of Indole acetic acid, Kinetin, and Acardian Marine Plant Extract Powder. The combination of Acardian Marine Plant Extract Powder, Indole acetic acid, and Kinetin, along with exposure to colchicine, induced the highest frequency of polyploidy regeneration from meristematic cells. Anatomical and microscopic studies provided further insights into the characteristics of colchicine-induced polyploidy.
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)