Four new plastoquinones, together with two known compounds, sargahydroquinoic acid and sargaquinoic acid, were isolated from the brown alga, Sargassum yezoense collected from the eastern coast of Korea. The structures of these compounds were elucidated based on spectroscopic analyses including NMR and MS. Their structures designated as meroterphenol A (1), B (2), C (3) and D (4) were characteri...

Biological synthesis of nanoparticles is a relatively new emerging field of nanotechnology which has economic and eco-friendly benefits over chemical and physical processes of synthesis. In the present work, for the first time, the brown marine algae Sargassum muticum (S. muticum) aqueous extract was used as a reducing agent for the synthesis of nanostructure silver particles (Ag-NPs). Structur...

AbstrakTujuan penelitian adalah untuk mengetahui pertumbuhan, kelangsungan hidup, rasio konversi pakan dan efisiensi ikan baronang lingkis dengan peemberian rumput laut segar yang dipelihara pada karamba jaringapung. Penelitian ini dilaksanakan bulan Maret sampai Mei 2020. Pemeliharaan benih dilakukandalam Karamba Jaring Apung (KJA) di Desa Wawobungi, Kecamatan Lalonggasumeeto, Kabupaten Konawe...

The Association between two species of juvenile parrotfishes, Chlorurus sordidus and Scarus psittacus and an alga, Sargassum mangarvense was examined in Moorea French Polynesia. A number of treatments were constructed to test the relationships between size of an algal patch, the presence of algae and the juvenile fish. The relationship between the two species was also examined. Several existing...

Marine algal community signifies a huge source of compound endowed with ingenious structure and potential biological activities. Cytotoxicity of plant or fungal material is considered as the presence of antitumor compounds. In this study, ethanol extracts of seaweeds Dictyota dichotoma var. velutricata, D. hauckiana, D. indica, Iyengaria stellata, Jolyna laminarioides, Melanothamnus afaqhusaini...

The Pacific oyster (Crassostrea gigas), originally from East Asia, has been the main species of oyster farmed in Europe since the early 20 century. Populations were heavily hit by disease in the 1960s and 1970s and thousands of tons of Pacific oysters from Canada and Japan were subsequently imported to replenish French farm stocks. However, a number of other species inadvertently arrived with t...

Impact of three different types of seaweed diets on growth, feed utilization and nutrient digestibility of L. rohita was studied for 120 days. The seaweed diet fed fishes, especially Ulva based diet showed comparatively higher growth and weight increment. Good food conversion ratio, food assimilation efficiency, protein efficiency ratio and better nutrient digestibility were recorded for seawee...

This study aims to determine the effect of fermentation duration on nutrient composition seaweed liquid organic fertilizer (Sargassum sp). research was conducted from May June 2017 at The University Muhammadiyah Parepare. Test materials used in form and lactobacillus. container implementation this is 6 bottles 1000 ml size, before are first washed clean. Then each bottle filled with extracts Sa...

This paper highlights the potential of Sargassum algae, recovered from raw beach seaweed wastes, as a valid source valuable sodium alginate. Alginate is biodegradable, highly attractive polysaccharide widely used in food, pharmaceuticals, and biomedicine applications. The aim this work to employ new eco-sustainable cost-effective extractive method obtain alginate material pollutant organic seaw...