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
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
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
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
Biotechnology & Applied Microbiology
Adella Anding Aganduk, Patricia Matanjun, Tek Song Tan, Ban-Hock Khor
Summary: This study aimed to substitute wheat flour with K. alvarezii powder and determine its effects on the physical properties and composition of snack crackers. The results showed that the addition of K. alvarezii powder led to a decrease in color and water activity, while an increase in ash and fiber content. The protein, fat, and moisture content decreased with the addition of K. alvarezii powder.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Environmental Sciences
Muthiyal Prabakaran Sudhakar, Dhassiah Magesh Peter, Gopal Dharani
Summary: This study utilized red seaweed Kappaphycus alvarezii for the production of bioplastic film with optimized plasticizer to seaweed biomass ratio, resulting in a thin bioplastic film with higher tensile strength. The bioplastic film obtained from the seaweed showed better physical and mechanical properties, suggesting seaweed as a potential alternate source for bioplastic production that may reduce the usage of non-degradable plastics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Hasmadi Mamat, Yee Yi Ling, Ahmad Hazim Abdul Aziz, Noorakmar Ab. Wahab, Ramlah George Mohd Rosli, Mohd Sani Sarjadi, Mohamad Khairi Zainol, Nicky Rahmana Putra, Mohd Azizi Che Yunus
Summary: This study developed a steamed bun with Kappachychus alvarezii composite flour, with six formulations containing different percentages of red seaweed. The physicochemical properties and sensory acceptability of the steamed bun were evaluated. Results showed that increasing seaweed powder in the formulations increased hardness, chewiness, bulk density, and water activity, while reducing cohesiveness, springiness, and specific volume. Sensory evaluation results indicated that seaweed powder can be used up to 6% without significant impact on overall acceptability. Addition of 1.5% seaweed powder increased ash, moisture, crude fat, crude fiber, dietary fiber, and energy content compared to the control sample, enhancing the nutritional composition of the steamed bun.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Food Science & Technology
Deep Das, Abimannan Arulkumar, Sadayan Paramasivam, Aroa Lopez-Santamarina, Alicia del Carmen Mondragon, Jose Manuel Miranda Lopez
Summary: This study evaluated the phytochemical constituents, antioxidant, and antibacterial properties of Kappaphycus alvarezii and Cymodocea serrulata. Both seaweeds contained flavonoids, tannins, phenolic compounds, glycosides, steroids, carbohydrates, and ashes. Alkaloids were only found in K. alvarezii. The chloroform extracts of both seaweeds exhibited antagonistic efficacy against Bacillus subtilis, Vibrio parahaemolyticus, Vibrio alginolyticus, Vibrio harveyi, and Klebsiella pneumoniae. GC-MS analysis revealed the presence of numerous bioactive compounds in both seaweeds, which contributed to their antioxidant and antibacterial activities. Based on the results, K. alvarezii and C. serrulata could be considered as valuable sources of nutritional and medicinal ingredients.
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
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
Biochemistry & Molecular Biology
Muthiyal Prabakaran Sudhakar, Srinivas Venkatnarayanan, Gopal Dharani
Summary: In this study, bio-nanocomposite films were prepared using whole seaweed and metal oxide nanoparticles. The films showed improved properties compared to standard refined kappa-Carrageenan, including reduced UV transmittance, water uptake ratio, and solubility, as well as enhanced antibacterial activity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
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)
Article
Green & Sustainable Science & Technology
Wilson Thau Lym Yong, Vun Yee Thien, Rennielyn Rupert, Kenneth Francis Rodrigues
Summary: Seaweed, as a blue carbon sink and renewable energy source, can play a significant role in climate change adaptation and mitigation strategies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
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
Food Science & Technology
Jingsi Peng, Shi Min, Ping Qing, Minda Yang
Summary: This study investigated the quantity and trend of seaweed consumption among Chinese residents and found that urban households consume more seaweed on average than rural households. Urbanization and dietary knowledge have a positive impact on seaweed consumption in China.