STUDY ON USING DATA OF FATTY ACIDS IN BOTANICAL CLASSIFICATION (CHEMOTAXONOMY) FOR RED SEAWEED SPECIES

Dried raw and protonated biomasses of the brown seaweed Fucus vesiculosus and the red seaweed Gracilaria tikvahiae were used to study their biosorption performance for copper, zinc, nickel, and cobalt. Representative samples of both species were collected from Chincoteague Bay, Virginia. A series of “sorbate” or metal concentrations (10-450 mg L-1) were selected for each metal to compare the seaweeds' biosorption performance at pH 4.5 ± 0.1 and 25±1 °C. Samples were analyzed on Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES). Langmuir and Freundlich adsorption isotherm models for single solute systems were used to assess sorption performance. Both raw and protonated Fucus vesiculosus exhibited higher affinity for metal ions than Gracilaria tikvahiae, at both high and low ends of the concentration ranges. The protonated red seaweed species had maximum metal uptake values of 0.99 mequiv g-1 (copper), 0.39 mequiv g-1 (zinc), 0.66 mequiv g-1 (nickel) and 0.79 mequiv g-1 (cobalt). In comparison, protonated Fucus vesiculosus sorbed higher amounts (1.63, 1.10, 1.40, and 1.69 mequiv g-1 of the metals in the same order). The prospects of using the brown seaweed species in the treatment of industrial wastewaters in place of expensive, conventional ion-exchange resins are envisaged.

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Temperature and pressure effects on supercritical carbon dioxide extraction of n-3 fatty acids from red seaweed

Food Chemistry ◽

10.1016/s0308-8146(98)00210-6 ◽

1999 ◽

Vol 65 (3) ◽

pp. 399-403 ◽

Cited By ~ 60

Author(s):

P Cheung

Keyword(s):

Carbon Dioxide ◽

Fatty Acids ◽

Supercritical Carbon Dioxide ◽

Pressure Effects ◽

Red Seaweed ◽

Supercritical Carbon Dioxide Extraction ◽

Carbon Dioxide Extraction ◽

Temperature And Pressure ◽

Temperature And Pressure Effects ◽

Supercritical Carbon

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Rapid Identification of Long-Chain Polyunsaturated Fatty Acids in a Marine Extract by HPLC-MS Using Data-Dependent Acquisition

Analytical Chemistry ◽

10.1021/ac3006523 ◽

2012 ◽

Vol 84 (14) ◽

pp. 5976-5983 ◽

Cited By ~ 23

Author(s):

Michael C. Thomas ◽

Simon R. Dunn ◽

Jens Altvater ◽

Sophie G. Dove ◽

Geoffrey W. Nette

Keyword(s):

Fatty Acids ◽

Polyunsaturated Fatty Acids ◽

Rapid Identification ◽

Using Data ◽

Long Chain

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A Comprehensive Review of the Nutraceutical and Therapeutic Applications of Red Seaweeds (Rhodophyta)

Life ◽

10.3390/life10030019 ◽

2020 ◽

Vol 10 (3) ◽

pp. 19 ◽

Cited By ~ 6

Author(s):

João Cotas ◽

Adriana Leandro ◽

Diana Pacheco ◽

Ana M. M. Gonçalves ◽

Leonel Pereira

Keyword(s):

Fatty Acids ◽

Scientific Community ◽

Point Of View ◽

Red Seaweed ◽

Bioactive Substances ◽

Comprehensive Review ◽

Red Seaweeds ◽

Therapeutic Applications ◽

Biomedical Interest ◽

Advanced Applications

The red seaweed group (Rhodophyta) is one of the phyla of macroalgae, among the groups Phaeophyceae and Chlorophyta, brown and green seaweeds, respectively. Nowadays, all groups of macroalgae are getting the attention of the scientific community due to the bioactive substances they produce. Several macroalgae products have exceptional properties with nutraceutical, pharmacological, and biomedical interest. The main compounds studied are the fatty acids, pigments, phenols, and polysaccharides. Polysaccharides are the most exploited molecules, which are already widely used in various industries and are, presently, entering into more advanced applications from the therapeutic point of view. The focuses of this review are the red seaweeds’ compounds, its proprieties, and its uses. Moreover, this work discusses new possible applications of the compounds of the red seaweeds.

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Derivation of a Bayes Factor to Distinguish Between Linked or Pleiotropic Quantitative Trait Loci

Genetics ◽

10.1093/genetics/166.2.1025 ◽

2004 ◽

Vol 166 (2) ◽

pp. 1025-1035

Author(s):

L Varona ◽

L Gómez-Raya ◽

W M Rauw ◽

A Clop ◽

C Ovilo ◽

...

Keyword(s):

Fatty Acids ◽

Linoleic Acid ◽

Least Squares ◽

Bayes Factor ◽

Least Squares Method ◽

Simple Procedure ◽

Pleiotropic Qtl ◽

Using Data ◽

Landrace Pig ◽

Least Squares Approach

Abstract A simple procedure to calculate the Bayes factor between linked and pleiotropic QTL models is presented. The Bayes factor is calculated from the marginal prior and posterior densities of the locations of the QTL under a linkage and a pleiotropy model. The procedure is computed with a Gibbs sampler, and it can be easily applied to any model including the location of the QTL as a variable. The procedure was compared with a multivariate least-squares method. The proposed procedure showed better results in terms of power of detection of linkage when low information is available. As information increases, the performance of both procedures becomes similar. An example using data provided by an Iberian by Landrace pig intercross is presented. The results showed that three different QTL segregate in SSC6: a pleiotropic QTL affects myristic, palmitic, and eicosadienoic fatty acids; another pleiotropic QTL affects palmitoleic, stearic, and vaccenic fatty acids; and a third QTL affects the percentage of linoleic acid. In the example, the Bayes factor approach was more powerful than the multivariate least-squares approach.

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Polysiphonia japonica Extract Attenuates Palmitate-Induced Toxicity and Enhances Insulin Secretion in Pancreatic Beta-Cells

Oxidative Medicine and Cellular Longevity ◽

10.1155/2018/4973851 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 2

Author(s):

Seon-Heui Cha ◽

Hyun-Soo Kim ◽

Yongha Hwang ◽

You-Jin Jeon ◽

Hee-Sook Jun

Keyword(s):

Fatty Acids ◽

Insulin Secretion ◽

Fatty Acid ◽

Protective Effect ◽

Functional Food ◽

Pancreatic Beta Cells ◽

Cell Loss ◽

Transgenic Zebrafish ◽

Zebrafish Embryos ◽

Red Seaweed

Beta-cell loss is a major cause of the pathogenesis of diabetes. Elevated levels of free fatty acids may contribute to the loss of β-cells. Using a transgenic zebrafish, we screened ~50 seaweed crude extracts to identify materials that protect β-cells from free fatty acid damage. We found that an extract of the red seaweed Polysiphonia japonica (PJE) had a β-cell protective effect. We examined the protective effect of PJE on palmitate-induced damage in β-cells. PJE was found to preserve cell viability and glucose-induced insulin secretion in a pancreatic β-cell line, Ins-1, treated with palmitate. Additionally, PJE prevented palmitate-induced insulin secretion dysfunction in zebrafish embryos and mouse primary islets and improved insulin secretion in β-cells against palmitate treatment. These findings suggest that PJE protects pancreatic β-cells from palmitate-induced damage. PJE may be a potential therapeutic functional food for diabetes.

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Association of linseed characters and its variability in different environments

The Journal of Agricultural Science ◽

10.1017/s0021859603003125 ◽

2003 ◽

Vol 140 (3) ◽

pp. 285-296 ◽

Cited By ~ 10

Author(s):

W. ADUGNA ◽

M. T. LABUSCHAGNE

Keyword(s):

Fatty Acids ◽

Seed Yield ◽

Climatic Factors ◽

Linseed Oil ◽

Block Design ◽

Oil Yield ◽

Correlated Responses ◽

Yield Attributes ◽

Effective Selection ◽

Using Data

Associations of characters were studied in linseed using data of 60 accessions evaluated in a randomized complete block design with three replications under glasshouse and field conditions during 2000 and 2001. The main objectives were to determine the magnitude of correlations between yield and its components under variable environments, and identify stable and major yield attributes that could support further improvements of linseed productivity. The degree of character association varied considerably across years and locations, due mainly to climatic factors (e.g. temperature, moisture levels, etc.) and disease incidences. However, seed yield per plot was significantly (P<0·01) and positively associated with seed yield per plant, 1000 seed weight and bolls per plant across environments. These three yield attributes were also strongly and positively correlated with plant height, branches per plant, days to flowering and maturity. Oil yield was significantly and positively associated with polyunsaturated (linoleic and linolenic) fatty acids, whereas it was negatively correlated with saturated (palmitic and stearic) fatty acids. Oil yield also had a weak positive relation with monounsaturated oleic acid. The quality of linseed oil, which is dependent on the levels of these fatty acids, can be influenced by the correlated responses of these variables in reaction to different environmental factors. Thus, knowledge on the causes and effects of these correlated responses are necessary to undertake sound and effective selection programmes.

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The effect of drying on undervalued brown and red seaweed species: Bioactivity alterations

Phycological Research ◽

10.1111/pre.12465 ◽

2021 ◽

Author(s):

Diana R. Julião ◽

Cláudia Afonso ◽

Ana Gomes‐Bispo ◽

Narcisa M. Bandarra ◽

Carlos Cardoso

Keyword(s):

Red Seaweed ◽

Seaweed Species

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Calliblepharis jubata Cultivation Potential—A Comparative Study between Controlled and Semi-Controlled Aquaculture

Applied Sciences ◽

10.3390/app10217553 ◽

2020 ◽

Vol 10 (21) ◽

pp. 7553

Author(s):

Glacio Souza Araujo ◽

João Cotas ◽

Tiago Morais ◽

Adriana Leandro ◽

Sara García-Poza ◽

...

Keyword(s):

Fatty Acids ◽

Food Industry ◽

Nutritional Value ◽

Human Consumption ◽

Growing Up ◽

Red Seaweed ◽

Biochemical Compounds ◽

Biological Compounds ◽

Primary Producer ◽

Cultivation Techniques

Calliblepharis jubata is an edible red seaweed and a carrageenan primary producer, considered native in Figueira da Foz (Portugal). C. jubata has the particularity of producing only one kind of carrageenan, the iota fraction. However, this seaweed is not yet valuable for the food industry or even for human consumption. In this work, we characterize important biochemical compounds of C. jubata growing up within different cultivation techniques and wild specimens. The aim of this work is to know if there are differences between the biological compounds of interest and identify the advantages for human consumption and the food industry. The results supported the nutritional value of the seaweed, where the ones from inshore cultivation (T) were more identical to the wild specimens (F), than the indoor C. jubata (A, B, C). The parameters analyzed were fatty acids, carbohydrates and carrageenan content.

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