scholarly journals The nutritional aspects of biorefined Saccharina latissima, Ascophyllum nodosum and Palmaria palmata

2016 ◽  
Vol 7 (2) ◽  
pp. 221-235 ◽  
Author(s):  
Peter Schiener ◽  
Sufen Zhao ◽  
Katerina Theodoridou ◽  
Manus Carey ◽  
Karen Mooney-McAuley ◽  
...  
Keyword(s):  
Ascophyllum Nodosum ◽  
Saccharina Latissima ◽  
Palmaria Palmata

scholarly journals Роль водорослей-макрофитов в биоремедиации от нефтепродуктов Кольского залива Баренцева моря

2021 ◽  
Vol 6 (3) ◽  
pp. 35-43
Author(s):  
Г. М. Воскобойников ◽  
С. В. Малавенда ◽  
Л. О. Метелькова
Keyword(s):  
Ascophyllum Nodosum ◽  
Fucus Vesiculosus ◽  
Saccharina Latissima ◽  
Palmaria Palmata

Выполнена оценка вклада макроводорослей в очистку от дизельного топлива Кольского залива Баренцева моря. В основу расчётов положены результаты: 1) экспедиционных наблюдений последних лет о запасах, распределении и биомассе водорослей-макрофитов отделов Chlorophyta и Rhodophyta и класса Phaeophyceae из отдела Ochrophyta, обитающих в трёх частях залива; 2) лабораторных исследований по способности макроводорослей Ascophyllum nodosum, Fucus vesiculosus, F. distichus, F. serratus, Saccharina latissima, Palmaria palmata и Ulvaria obscura к нейтрализации токсического действия дизельного топлива. Показано, что общий вклад у исследованных водорослей в биоремедиацию от дизельного топлива в заливе составляет 312 кг в сутки. Выявлены различия в поглощающей способности у водорослей-макрофитов. Так, наиболее эффективно процесс осуществляет S. latissima, минимальная эффективность участия в биоремедиации определена у U. obscura. Сделан вывод о том, что имеющиеся литоральные и сублиторальные заросли морских макроводорослей Кольского залива являются важным элементом в процессе профилактической, повседневной очистки вод залива от нефтепродуктов. Включение в расчёты данных о способности к нейтрализации дизельного топлива у других представителей фитобентоса залива может увеличить роль водорослей-макрофитов в очистке прибрежных морских акваторий от нефтепродуктов. Сделан вывод, что заросли бурых водорослей — важная составляющая системы репарации и гомеостаза в прибрежных экосистемах. Уничтожение даже части природных сообществ водорослей может изменить баланс, существующий в экосистеме.

scholarly journals Identification of Phlorotannins in the Brown Algae, Saccharina latissima and Ascophyllum nodosum by Ultra-High-Performance Liquid Chromatography Coupled to High-Resolution Tandem Mass Spectrometry

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 43
Author(s):  
Roya R. R. Sardari ◽  
Jens Prothmann ◽  
Olavur Gregersen ◽  
Charlotta Turner ◽  
Eva Nordberg Karlsson
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Resolution ◽  
Tandem Mass Spectrometry ◽  
High Performance ◽  
Ascophyllum Nodosum ◽  
Saccharina Latissima ◽  
Total Phenolic ◽  
Tandem Mass

Phlorotannins are bioactive polyphenols in brown macroalgae that make these algae interesting as healthy food. Specific phlorotannins are, however, seldom identified, and extracts from different species are often only analysed for total phenolic content (TPC). In this study, our focus was to identify phlorotannin molecules from Saccharina latissima and Ascophyllum nodosum (a species rich in these compounds) using ultra-high-performance liquid chromatography coupled to high-resolution tandem mass spectrometry (UHPLC-HRMS2). Water and ethanol (30 and 80% v/v) were used at solid:liquid ratios, extraction times and temperatures, proposed to result in high TPC in extracts from other species. The S. latissima extracts, however, did not allow phlorotannin detection by either UHPLC-UV/Vis or UHPLC-HRMS2, despite a TPC response by the Folin–Ciocalteu assay, pinpointing a problem with interference by non-phenolic compounds. Purification by solid phase extraction (SPE) led to purer, more concentrated fractions and identification of four phlorotannin species in A. nodosum and one in S. latissima by UHPLC-HRMS2, using extracts in ethanol 80% v/v at a solid:liquid ratio of 1:10 for 20 h at 25 °C with an added 10 h at 65 °C incubation of remaining solids. The phlorotannin with the formula C12H10O7 (corresponding to bifuhalol) is the first identified in S. latissima.

scholarly journals Nordic Seaweed and Diabetes Prevention: Exploratory Studies in KK-Ay Mice

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1435 ◽  
Author(s):  
Lasse E. Sørensen ◽  
Per B. Jeppesen ◽  
Christine B. Christiansen ◽  
Kjeld Hermansen ◽  
Søren Gregersen
Keyword(s):  
Control Diet ◽  
Density Lipoprotein ◽  
Lifestyle Changes ◽  
Saccharina Latissima ◽  
Palmaria Palmata ◽  
Control Group ◽  
Lipid Levels ◽  
Bioactive Substances ◽  
Potential Health ◽  
Ay Mice

Background: The global epidemic of type 2 diabetes (T2D) is a challenging health problem. Lifestyle changes, including nutrition therapy, areimportant for the prevention and management of T2D. Seaweeds contain several bioactive substances with potential health properties and may be a low-cost alternative functional food in the prevention of T2D. Objective: The aim of this study was to explore the preventive effects of dried Nordic seaweed species on diabetes in an animal model of T2D. Method: Fiftymale KK-Ay mice were randomly assigned to one of four diets: control diet (chow) or diets supplemented with Alaria esculenta (AE), Saccharina latissima (SL), or Palmaria palmata (PP). The effect of the interventions on the progression of T2D was monitored over 10 weeks and evaluated by circulating glucose, glycated hemoglobin (HbA1c), insulin, glucagon, and lipid levels. Results: The SL group had significantly lower bodyweight, lower HbA1c and insulin levels, as well as higher high density lipoprotein (HDL) cholesterol levels after the 10-week intervention than the control group. At the end of the study, the control group had significantly higher HbA1c (p < 0.001) than all of the seaweed groups. Conclusion: All seaweed groups improved HbA1C compared to control and Saccharinalatissima seaweed had concomitantly beneficial effects on glycemic control and lipid levels in KK-Ay diabetic mice.

scholarly journals Identification of fatty acids in fractionated lipid extracts from Palmaria palmata, Alaria esculenta and Saccharina latissima by off-line SPE GC-MS

2020 ◽  
Vol 32 (6) ◽  
pp. 4251-4262
Author(s):  
Lena Foseid ◽  
Ingeborg Natvik ◽  
Hanne Devle ◽  
Dag Ekeberg
Keyword(s):  
Fatty Acids ◽  
Neutral Lipids ◽  
Essential Fatty Acids ◽  
Saccharina Latissima ◽  
Palmaria Palmata ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Alaria Esculenta ◽  
Lipid Fractions ◽  
Omega 6

AbstractThe fatty acid profiles of the three lipid fractions, neutral lipids (NL), free fatty acids and polar lipids (PL), from the macroalgae Palmaria palmata (wild), Alaria esculenta (cultivated) and Saccharina latissima (cultivated) were studied in light of dietary important fatty acids. Blade and stipe from the macroalgae were collected at the end of the growth season (May/June) at Frøya (Trøndelag, Norway). A total of 51 fatty acids were identified in the algae, including several fatty acids novel to one or more of the algae. The NL and PL fractions of P. palmata were the most promising from a health perspective, due to a high content of eicosapentaenoic acid (10.1 ± 0.5% and 6.6 ± 0.1%, respectively) and no trans-fatty acids. In addition, these fractions had very low omega-6/omega-3 ratios (< 0.1) and can therefore be beneficial for balancing the omega-6/omega-3 ratio in the diet. The NL fraction of A. esculenta had the highest content of monounsaturated- and polyunsaturated fatty acids (20.9 ± 1.4 and 21.8 ± 1.9% of alga, respectively), as well as the highest content of the two essential fatty acids, linoleic acid (5.3 ± 0.4% of alga) and alpha-linolenic acid (2.4 ± 0.2% of alga). Indices related to risk factors for coronary heart disease were most favourable in the NL fraction of S. latissima and the NL and PL fractions of A. esculenta.

Batch and semi-continuous anaerobic digestion of Palmaria palmata: Comparison with Saccharina latissima and inhibition studies

2012 ◽  
Vol 209 ◽  
pp. 513-519 ◽  
Author(s):  
G. Jard ◽  
D. Jackowiak ◽  
H. Carrère ◽  
J.P. Delgenes ◽  
M. Torrijos ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Saccharina Latissima ◽  
Palmaria Palmata ◽  
Inhibition Studies

scholarly journals Protein value and health aspects of the seaweeds Saccharina latissima and Palmaria palmata evaluated with mink as model for monogastric animals

2021 ◽  
Vol 276 ◽  
pp. 114902
Author(s):  
Åshild Krogdahl ◽  
Alexander Jaramillo-Torres ◽  
Øystein Ahlstrøm ◽  
Elvis Chikwati ◽  
Inga-Marie Aasen ◽  
...  
Keyword(s):  
Saccharina Latissima ◽  
Palmaria Palmata

scholarly journals Characterisation and chemometric evaluation of 17 elements in ten seaweed species from Greenland

2020 ◽  
Author(s):  
Katharina Johanna Kreissig ◽  
Lisbeth Truelstrup Hansen ◽  
Pernille Erland Jensen ◽  
Susse Wegeberg ◽  
Ole Geertz-Hansen ◽  
...  
Keyword(s):  
Geographic Origin ◽  
Saccharina Latissima ◽  
Palmaria Palmata ◽  
Food Ingredients ◽  
Seaweed Species ◽  
Fucus Distichus ◽  
Alaria Esculenta ◽  
The Family ◽  
Species Specific ◽  
The Eu

AbstractSeveral Greenland seaweed species have potential as foods or food ingredients, both for local consumption and export. However, knowledge regarding their content of beneficial and deleterious elements on a species specific and geographical basis is lacking. This study investigated the content of 17 elements (As, Ca, Cd, Cr, Cu, Fe, Hg, I, K, Mg, Mn, Na, Ni, P, Pb, Se and Zn) in 77 samples of ten species (Agarum clathratum, Alaria esculenta, Ascophyllum nodosum, Fucus distichus, Fucus vesiculosus, Hedophyllum nigripes, Laminaria solidungula, Palmaria palmata, Saccharina latissima and Saccharina longicruris). Element profiles differed between species but showed similar patterns within the same family. For five species, different thallus parts were investigated separately, and showed different element profiles. A geographic origin comparison of Fucus species indicated regional differences. The seaweeds investigated were especially good sources of macrominerals (K > Na > Ca > Mg) and trace minerals, such as Fe. Iodine contents were high, especially in macroalgae of the family Laminariaceae. None of the samples exceeded the EU maximum levels for Cd, Hg or Pb, but some exceeded the stricter French regulations, especially for Cd and I. In conclusion, these ten species are promising food items.

scholarly journals Characterisation and chemometric evaluation of 17 elements in ten seaweed species from Greenland

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0243672
Author(s):  
Katharina J. Kreissig ◽  
Lisbeth Truelstrup Hansen ◽  
Pernille Erland Jensen ◽  
Susse Wegeberg ◽  
Ole Geertz-Hansen ◽  
...  
Keyword(s):  
Geographic Origin ◽  
Saccharina Latissima ◽  
Palmaria Palmata ◽  
Food Ingredients ◽  
Seaweed Species ◽  
Fucus Distichus ◽  
Alaria Esculenta ◽  
The Family ◽  
Species Specific ◽  
The Eu

Several Greenland seaweed species have potential as foods or food ingredients, both for local consumption and export. However, knowledge regarding their content of beneficial and deleterious elements on a species specific and geographical basis is lacking. This study investigated the content of 17 elements (As, Ca, Cd, Cr, Cu, Fe, Hg, I, K, Mg, Mn, Na, Ni, P, Pb, Se and Zn) in 77 samples of ten species (Agarum clathratum, Alaria esculenta, Ascophyllum nodosum, Fucus distichus, Fucus vesiculosus, Hedophyllum nigripes, Laminaria solidungula, Palmaria palmata, Saccharina latissima and Saccharina longicruris). Element profiles differed between species but showed similar patterns within the same family. For five species, different thallus parts were investigated separately, and showed different element profiles. A geographic origin comparison of Fucus species indicated regional differences. The seaweeds investigated were especially good sources of macrominerals (K > Na > Ca > Mg) and trace minerals, such as Fe. Iodine contents were high, especially in macroalgae of the family Laminariaceae. None of the samples exceeded the EU maximum levels for Cd, Hg or Pb, but some exceeded the stricter French regulations, especially for Cd and I. In conclusion, these ten species are promising food items.

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