Acute Post-Prandial Cognitive Effects of Brown Seaweed Extract in Humans

Abstract: Infection usually caused by microorganism such as bacterial. One example of infection is abscess which caused by Staphylococcus aureus. Staphylococcus aureus is a pathogenic bacterial in mouth. Seaweed is a part of sea plants. Nowadays, seaweed has been used as material of agar-agar, alginate, and even medicine. Indonesia has good potential to develop and use its richness at the sea. One of species that has been cultivated is Gracilaria verrucosa or known with local name “bulung rambu” (Bali) or “sango-sango” (Sulawesi). The characteristics of Gracilaria verrucosa is thallus silindris, slick, and has yellowish-brown or yellowish-green. Green, red, or brown seaweed is a potential source of bioactive compound that useful for pharmacy industry improvement like antibacterial, antivirus, antifungal, and cytostatic. This study purpose was to find out if seaweed extract (Gracilaria sp.) can inhibit growth of Staphylococcus aureus. This study was an experimental laboratory with true experimental design and posttest only control design. study subject are seaweed extract Gracilaria sp. that dissolved with 95% ethanol which evaporated in oven. Inhibition zone of Gracilaria sp. extract evaporated in the oven at each repeated were 2.5mm, 3.5mm, 3mm. Inhibition zone created from Gracilaria sp. extract that evaporated with vacuum rotary evaporator in each repeated were 2mm, 2mm, and 2.5mm. Study results showed that seaweed extract (Gracilaria sp.) didn’t have exhibition zone against Staphylococcus aureus.Keywords: inhibition test, seaweed (gracilaria sp), staphylococcus aureus.Abstrak: Penyakit infeksi yang biasanya disebabkan oleh mikroorganisme yaitu bakteri. Salah satu contoh penyakit infeksi tersebut yaitu abses yang disebabkan oleh bakteri Staphylococcus aureus. Staphylococcus aureus adalah patogen utama dalam rongga mulut. Rumput laut merupakan bagian dari tumbuhan laut perairan. Saat ini rumput laut telah dimanfaatkan sebagai bahan baku industri agar-agar, dan alginat bahkan obat-obatan. Indonesia mempunyai potensi yang baik untuk mengembangkan dan memanfaatkan kekayaan lautnya. Salah satu jenis yang sudah banyak dibudidayakan adalah Gracilaria verrucosa atau dikenal dengan nama daerah bulung rambu (bali) atau sango-sango (sulawesi). Ciri-ciri dari Gracilaria verrucosa, yaitu thallus silindris, licin, dan berwarna kuning-coklat atau kuning-hijau.Rumput laut hijau, merah ataupun coklat merupakan sumber potensial senyawa bioaktif yang sangat bermanfaat bagi pengembangan industri farmasi seperti sebagai antibakteri, antivirus, antijamur dan sitotastik. Penelitian ini bertujuan untuk mengetahui apakah ekstrak rumput laut (Gracilaria sp.) dapat menghambat pertumbuhan bakteri Staphylococcus aureus. Penelitian ini merupakan penelitian eksperimental laboratorium, menggunakan rancangan eksperimental murni (true experimental design) dengan rancangan penelitian posttest only control design. Subjek dari penelitian ini ialah ekstrak rumput laut Gracilaria sp. yang dilarutkan dengan etanol 95% yang dievaporasi menggunakan rotary vacuum evaporator dan dipanaskan dalam oven. zona hambat dari ekstrak Gracilaria sp. yang dievaporasi dengan oven pada masing-masing pengulangan ialah 2,5 mm, 3,5 mm, 3 mm. Demikian juga zona hambat yang terbentuk dari ekstrak Gracilaria sp. yang dievaporasi dengan vacuum rotary evaporator pada masing-masing pengulangan ialah 2 mm, 2 mm, dan 2,5 mm. Hasil penelitian menunjukkan bahwa ekstrak rumput laut (Gracilaria sp.) tidak memiliki daya hambat terhadap bakteri Staphylococcus aureus.Kata kunci: uji daya hambat, rumput laut (gracilaria sp.), staphylococcus aureus.

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Effect of Brown Seaweed Extract of Sargassum Johnstonii on Vegetable Plant Growth and Biochemical Constituent

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2019.3391 ◽

2019 ◽

Vol 7 (3) ◽

pp. 2113-2119

Author(s):

Janvi V. Patel Janvi V. Patel

Keyword(s):

Plant Growth ◽

Brown Seaweed ◽

Seaweed Extract ◽

Biochemical Constituent

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Effects of seaweed extracts on in vitro rumen fermentation characteristics, methane production, and microbial abundance

Scientific Reports ◽

10.1038/s41598-021-03356-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Youyoung Choi ◽

Shin Ja Lee ◽

Hyun Sang Kim ◽

Jun Sik Eom ◽

Seong Uk Jo ◽

...

Keyword(s):

Brown Seaweed ◽

Methanogenic Archaea ◽

Rumen Fermentation ◽

Gas Production ◽

Seaweed Extract ◽

Microbial Populations ◽

Butyrivibrio Fibrisolvens ◽

Seaweed Extracts ◽

Prevotella Ruminicola

AbstractSeveral seaweed extracts have been reported to have potential antimethanogenic effects in ruminants. In this study, the effect of three brown seaweed species (Undaria pinnatifida, UPIN; Sargassum fusiforme, SFUS; and Sargassum fulvellum, SFUL) on rumen fermentation characteristics, total gas, methane (CH4), carbon dioxide (CO2) production, and microbial populations were investigated using an in vitro batch culture system. Seaweed extract and its metabolites, total flavonoid and polyphenol contents were identified and compared. For the in vitro batch, 0.25 mg∙mL−1 of each seaweed extract were used in 6, 12, 24, 36 and 48 h of incubation. Seaweed extract supplementation decreased CH4 yield and its proportion to total gas production after 12, 24, and 48 h of incubation, while total gas production were not significantly different. Total volatile fatty acid and molar proportion of propionate increased with SFUS and SFUL supplementation after 24 h of incubation, whereas UPIN was not affected. Additionally, SFUS increased the absolute abundance of total bacteria, ciliate protozoa, fungi, methanogenic archaea, and Fibrobacter succinogenes. The relative proportions of Butyrivibrio fibrisolvens, Butyrivibrio proteoclasticus, and Prevotella ruminicola were lower with seaweed extract supplementation, whereas Anaerovibrio lipolytica increased. Thus, seaweed extracts can decrease CH4 production, and alter the abundance of rumen microbial populations.

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Applications of a Commercial Extract of the Brown Seaweed Ascophyllum nodosum Increases Drought Tolerance in Container-grown ‘Hamlin’ Sweet Orange Nursery Trees

HortScience ◽

10.21273/hortsci.46.4.577 ◽

2011 ◽

Vol 46 (4) ◽

pp. 577-582 ◽

Cited By ~ 38

Author(s):

Timothy M. Spann ◽

Holly A. Little

Keyword(s):

Drought Stress ◽

Sweet Orange ◽

Foliar Spray ◽

Brown Seaweed ◽

Ascophyllum Nodosum ◽

Seaweed Extract ◽

Plant Water ◽

Stem Water Potential ◽

Soil Drench ◽

Commercial Extract

‘Hamlin’ sweet orange trees on ‘Carrizo’ citrange and ‘Swingle’ citrumelo rootstocks were treated weekly with a commercial extract of the brown seaweed Ascophyllum nodosum at 5 and 10 mL·L−1 as either a soil drench or foliar spray. Half of the trees in each treatment were subjected to drought stress [irrigated at 50% of evapotranspiration (ET)], whereas the other half remained fully irrigated (100% ET). Drought stress reduced shoot growth and leaf photosynthesis but increased root and total plant growth relative to the amount of water applied, thus increasing whole plant water use efficiency. Trees treated with seaweed extract and drought-stressed had significantly more total growth than untreated drought-stressed trees for both rootstocks. The maintenance of growth by the seaweed extract under drought stress conditions was unrelated to photosynthesis. However, the seaweed extract treatment did have a significant effect on plant water relations. Soil drench-treated trees had more growth and higher stem water potential than foliar-treated or control trees after 8 weeks of drought stress. These results indicate that seaweed extract may be a useful tool for improving drought stress tolerance of container-grown citrus trees.

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The Effect of Water Extract of Brown Seaweed on the Characteristic of Jelly Candy as a Functional Food

10.31227/osf.io/3akjt ◽

2019 ◽

Author(s):

anni faridah

Keyword(s):

Antioxidant Activity ◽

Food Processing ◽

Functional Food ◽

Brown Seaweed ◽

Water Extract ◽

Seaweed Extract ◽

Total Phenolic ◽

Total Phenolic Compounds ◽

Sulphated Polysaccharides

Brown seaweed known as one of the source of the hydrocolloid (alginate) that is useful as thickener in food processing. Moreover, it also contains many beneficial compounds such as sulphated polysaccharides, phlorotannins, peptides, natural pigments, polyphenols, vitaminswhich can be developed as antioxidant, anticervix-tumor, hepatoprotector, and anti-diabetes. The use of wild brown seaweed which obtained from the coast of Nirwana in West Sumatera as an additive ingredient for jelly candy as a functional food was studied. Water extract of brown seaweed was added with various concentrations as much as 5%, 10%, and 15%. Sensory analysis was conducted for evaluating the product acceptance. Total phenolic compounds, antioxidant activity, the content in carbohydrate, fat, protein, ash, moisture were measure for determined the quality of most acceptable jelly candy. The most acceptable jelly candy was the product with 15 % addition of brown seaweed extract. The addition of brown seaweed extract improved the functionality of candy jelly that indicated by increasing of total phenolic compound, antioxidant activity, the content of carbohydrate, fat, protein and ash. The utilization of wild brown seaweed at the coast of Nirwana in West Sumatera is promising in developing of diversity functional food such as jelly candy and others product.

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Cultivation of the red seaweed Kappaphycus alvarezii with effluents from shrimp cultivation and brown seaweed extract: Effects on growth and secondary metabolism

Aquaculture ◽

10.1016/j.aquaculture.2017.06.005 ◽

2017 ◽

Vol 479 ◽

pp. 297-303 ◽

Cited By ~ 8

Author(s):

Anna Gabrielle La Macchia Pedra ◽

Fernanda Ramlov ◽

Marcelo Maraschin ◽

Leila Hayashi

Keyword(s):

Secondary Metabolism ◽

Kappaphycus Alvarezii ◽

Brown Seaweed ◽

Seaweed Extract ◽

Red Seaweed ◽

Shrimp Cultivation

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Study protocol for a double-blind randomised controlled trial investigating the impact of 12 weeks supplementation with aFucus vesiculosusextract on cholesterol levels in adults with elevated fasting LDL cholesterol who are overweight or have obesity

BMJ Open ◽

10.1136/bmjopen-2018-022195 ◽

2018 ◽

Vol 8 (12) ◽

pp. e022195 ◽

Cited By ~ 2

Author(s):

Margaret Murray ◽

Aimee L Dordevic ◽

Katherine H M Cox ◽

Andrew Scholey ◽

Lisa Ryan ◽

...

Keyword(s):

Risk Factors ◽

Disease Prevention ◽

Controlled Trial ◽

Venous Blood ◽

Brown Seaweed ◽

Density Lipoprotein ◽

Seaweed Extract ◽

Double Blind ◽

Markers Of Inflammation ◽

The Impact

IntroductionHyperlipidaemia, hyperglycaemia and chronic inflammation are risk factors for chronic diseases cardiovascular disease and type 2 diabetes. Polyphenols are bioactive compounds found in marine algae with potential antihyperlipidaemic, antihyperglycaemic and anti-inflammatory effects. The modulation of these risk factors using bioactive polyphenols may represent a useful strategy for disease prevention and management; research in humans, however, remains limited. This trial aims to determine the impact of a polyphenol-rich brown seaweed extract on fasting hyperlipidaemia, hyperglycaemia and inflammation. Effects on mood and cognition will also be evaluated.Methods and analysisFifty-eight hypercholesterolaemic participants who are overweight or have obesity will be randomised to receive either a polyphenol-rich brown seaweed extract (2000 mg dose containing 600 mg polyphenols) or placebo (2000 mg rice flour) daily for 12 weeks. Fasting venous blood samples will be taken at baseline, week 6 and week 12 of the intervention to assess serum cholesterol (total, low-density lipoprotein and high-density lipoprotein) and triglyceride concentrations, plasma glucose and insulin concentrations and markers of inflammation. Mood and cognitive function will be evaluated as exploratory outcomes. Independent t-tests or equivalent will be used to determine differences between the two groups in changes from baseline to week 12. Analysis of variance will be used to assess differences between the groups across the three time points (baseline, week 6 and week 12).Ethics and disseminationEthics approval has been granted by the Monash University Human Research Ethics Committee (2017-8689-10379). Results from this trial will be disseminated through publication in peer-reviewed journals, national and international presentations, and a PhD thesis. These results are essential to inform the use of polyphenol-rich brown seaweeds as a functional food or nutritional supplement ingredients for health promotion and disease prevention and management in humans.Trial registration numberACTRN12617001039370; Pre-results.

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