Fucoxanthin Content and Chemical Composition in Brown Seaweed, Nizamuddinia zanardinii (Phaeophyta) Collected from Mirbat, Southern Oman (The Arabian Sea)

2017 ◽  
Vol 19 (3) ◽  
pp. 259-270
Author(s):  
M. Chesalin ◽  
S. Al-Ghassani ◽  
V. I. Ryabushko ◽  
N. I. Bobko ◽  
E. Gureeva ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Arabian Sea ◽  
Brown Seaweed ◽  
Nizamuddinia Zanardinii

scholarly journals Fucoxanthin content and chemical composition in brown alga Nizamuddinia zanardinii (Phaeophyta) collected from Mirbat, Southern Oman (the Arabian Sea)

Algologia ◽  
2017 ◽  
Vol 27 (3) ◽  
pp. 246-260 ◽  
Author(s):  
M.V. Chesalin ◽  
◽  
S. Al-Ghassani ◽  
V.I. Ryabushko ◽  
N.I. Bobko ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Brown Alga ◽  
Arabian Sea ◽  
Nizamuddinia Zanardinii

Bimonthly variation in the chemical composition and biological activity of the brown seaweed Eisenia arborea (Laminariales: Ochrophyta) from Bahía Magdalena, Baja California Sur, Mexico

2017 ◽  
Vol 29 (5) ◽  
pp. 2605-2615 ◽  
Author(s):  
Cristina Landa-Cansigno ◽  
Gustavo Hernández-Carmona ◽  
Dora Luz Arvizu-Higuera ◽  
Mauricio Muñoz-Ochoa ◽  
Claudia Judith Hernández-Guerrero
Keyword(s):  
Biological Activity ◽  
Chemical Composition ◽  
Baja California ◽  
Brown Seaweed ◽  
Baja California Sur ◽  
Eisenia Arborea ◽  
Bahia Magdalena

Evaluation of the chemical composition of brown seaweed ( Saccharina japonica ) hydrolysate by pressurized hot water extraction

2016 ◽  
Vol 13 ◽  
pp. 246-254 ◽  
Author(s):  
Periaswamy Sivagnanam Saravana ◽  
Jae Hyung Choi ◽  
Yong Beom Park ◽  
Hee Chul Woo ◽  
Byung Soo Chun
Keyword(s):  
Chemical Composition ◽  
Brown Seaweed ◽  
Saccharina Japonica ◽  
Hot Water ◽  
Water Extraction ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction

Variations in chemical composition during the development of Himanthalia elongata (L.) S. F. Gray

1952 ◽  
Vol 31 (1) ◽  
pp. 29-34 ◽  
Author(s):  
Betty Moss
Keyword(s):  
Chemical Composition ◽  
Brown Seaweed ◽  
Commercial Importance ◽  
Himanthalia Elongata ◽  
British Coast

Himanthalia elongata (=H. lorea (L.) Lyngb.), although a common brown seaweed on parts of the British coast, does not occur in sufficient quantities to render it of commercial importance. As a result, the work of Colin & Ricard (1930) appears to be the only investigation on the chemical composition of this species. Their material was collected in August 1929, but they give no indication of the size or condition of the plants which were analysed.

scholarly journals Chemical composition diversity of fucoidans isolated from three tropical brown seaweeds (Phaeophyceae) species

2020 ◽  
Vol 21 (7) ◽  
Author(s):  
FADILAH NOR LAILI LUTFIA ◽  
Alim Isnansetyo ◽  
Ratna Asmah Susidarti ◽  
Muhammad Nursid
Keyword(s):  
Chemical Composition ◽  
Uronic Acid ◽  
Dry Matter ◽  
Deae Cellulose ◽  
Brown Seaweed ◽  
Exchange Chromatography ◽  
Chemical Components ◽  
Brown Seaweeds ◽  
Total Carbohydrates ◽  
High Sulfate

Abstract. Lutfia FN, Isnansetyo A, Susudarti RA, Nursid M. 2020. Chemical composition diversity of fucoidans isolated from three tropical brown seaweeds (Phaeophyceae) species. Biodiversitas 21: 3170-3177. Fucoidan is a polysaccharide with high sulfate content, found in the cell walls matrix of brown seaweed. Its bioactivities vary depending on the algae species and the chemical structure. The aims of this research were to extract, purify, and characterize fucoidan from three Indonesian brown seaweed, Sargassum sp., Turbinaria sp., and Padina sp. The extraction was carried out using acid method followed by precipitation with ethanol and CaCl2, while its purification using DEAE-cellulose ion-exchange chromatography. Characterization was performed by FTIR and 1H-NMR spectroscopic analyses. Chemical components of fucoidan determined were total carbohydrates, sulfate residue, uronic acid residue, and monosaccharide components. The results revealed that the Turbinaria sp. produced highest yield of fucoidan (4.8% dry matter), followed by Sargassum sp. (2.7% dry matter) and Padina sp. (2.6% dry matter). The carbohydrate contents of Sargassum sp., Turbinaria sp. and Padina sp. fucoidan were 64.55±0.12%, 67.42 ± 0.03% and 62.90 ± 0.04% with sulfate residues of 0.013% ± 4.71; 19.47±0.002% and 0.016%±8.81; and uronic acid residues of 25.19±0.03%; 12.69±0.03% and 12.91±0.01%, respectively. Sargassum sp., Turbinaria sp., and Padina sp. fucoidans consist of fucose and some other minor monosaccharides.

scholarly journals Long term variation in chemical composition of precipitation and wet deposition of major ions at Minicoy and Portblair : Islands in Arabian Sea and Bay of Bengal

MAUSAM ◽  
2021 ◽  
Vol 57 (3) ◽  
pp. 489-498
Author(s):  
VIJAY KUMAR SONI ◽  
P. S. KANNAN ◽  
S. G. GHANEKAR ◽  
USHA RAVINDRAN ◽  
A. N. GAIKWAD ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Bay Of Bengal ◽  
Wet Deposition ◽  
Arabian Sea ◽  
Major Ions ◽  
Monsoon Season ◽  
Winter Season ◽  
Deposition Flux ◽  
Wet Deposition Flux

Lkkj & bl ’kks/k Ik= esa vjc lkxj ds feuhdkW;  rFkk caxky dh [kkM+h ds iksVZCys;j }hi ds nks LFkkuksa ds o"kZ 1981 ls 2002 rd ds 22 o"kkZsa ds jklk;fud feJ.k ds dsoy vknzZ&o"kZ.k vk¡dM+kas dk fo’ys"k.k fd;k x;k gSA fofo/k vk;fud ldsUnzh;dj.k ds chp ds lglaca/kksa dks Li"V djus dk iz;kl fd;k x;k gSA ’kjn_rq ds nkSjku gqbZ o"kkZ ds ty esa lYQsV] ukbVªsV vkSj gkbMªkstu vk;uksa dh vf/kdre lkUnzrk ikbZ xbZ gS A _rq okj oxhZdj.k ds nkSjku ekWulwu _rq esa lHkh vk;uksa ds vknZz o"kZ.k vfHkokg ds vf/kdre gksus dk irk pyk gS A nksuksa gh LFkkuksa ij vEyh; fu{ksi.k esa c<+ksrjh dh izo`fr ns[kh xbZ gS A futZu}hi ij Tokykeq[kh dh fØ;k’khyrk iksVZCys;j ds o"kkZty esa jklk;fud feJ.k dks izHkkfor djrh gS A lYQsV vk;u ¼½ dk okf"kZd vknzZ o"kZ.k feuhdkW; esa 15-6 fd-xzk- izfr gsDVs;j izfr o"kZ rFkk iksVZCys;j es 25-5 fd-xzk- izfr gsDVsvj izfr o"kZ ik;k x;k gS rFkk ukbVªsV vk;u ¼½ dh fu{ksfir ek=k feuhdkW; esa 38-0 fd-xzk- izfr gsDVs;j izfr o"kZ vkSj iksVZCys;j esa 74-6 fd-xzk- izfr gsDVs;j izfr o"kZ rd ikbZ xbZ gS A /kuk;u vk;uksa esa lksfM;e vk;u ¼Na+½ rFkk dSfY’k;e vk;u ¼Ca2+½ ds rRo vf/kd ek=k esa tek gksrs gSa ftuesa eSXusf’k;e vk;u ¼Mg2+½ds lkFk&lkFk iksVkf’k;e vk;u ¼K+½ Hkh feys gksrs gSa A   The data on chemical composition of wet only precipitation from two island stations Minicoy in Arabian Sea and Portblair in Bay of Bengal, representing 22 year period, 1981-2002 have been analyzed. An attempt has been made to explain the correlation between various ionic concentrations. The maximum concentrations of sulfate, nitrate and hydrogen ions in rainwater are observed during winter season. When classified by season the wet deposition flux for all the ions is greatest in the monsoon season during which precipitation is substantially high. A tendency for increase in acidic deposition is observed at both the stations. The volcanic activity at Barren island appears to influence the chemical composition of rainwater at Portblair. The annual wet deposition of SO42- ranged from 15.6 kg ha-1 yr-1 at Minicoy to 25.5 kg ha-1 yr-1 at Portblair, and the corresponding amounts of NO3- deposited ranged from 38.0 kg ha-1 yr-1 at Minicoy to 74.6 kg ha-1 yr-1 at Portblair. Of the cations Na+ and Ca2+ are the elements deposited in largest quantities followed by Mg2+ and K+.

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