Fertilization of Brown Algae: Flagellar Function in Phototaxis and Chemotaxis

This article deals with fast pyrolysis of brown algae, such as Bifurcaria Bifurcata at the range of temperature 300–800 °C in a stainless steel tubular reactor. After a literature review on algae and its importance in renewable sector, a case study was done on pyrolysis of brown algae especially, Bifurcaria Bifurcata. The aim was to experimentally investigate how the temperature, the particle size, the nitrogen flow rate (N2) and the heating rate affect bio-oil, bio-char and gaseous products. These parameters were varied in the ranges of 5–50 °C/min, below 0.2–1 mm and 20–200 mL. min–1, respectively. The maximum bio-oil yield of 41.3wt% was obtained at a pyrolysis temperature of 600 °C, particle size between 0.2–0.5 mm, nitrogen flow rate (N2) of 100 mL. min–1 and heating rate of 5 °C/min. Liquid product obtained under the most suitable and optimal condition was characterized by elemental analysis, 1H-NMR, FT-IR and GC-MS. The analysis of bio-oil showed that bio-oil from Bifurcaria Bifurcata could be a potential source of renewable fuel production and value added chemicals.

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Physical characteristics test (water content and viscosity) of extraction sodium alginate brown algae (phaeophyta) species padina sp. as basic material for production dental impression material

Journal of Dentomaxillofacial Science ◽

10.15562/jdmfs.v3i2.625 ◽

2018 ◽

Vol 3 (2) ◽

pp. 84 ◽

Cited By ~ 1

Author(s):

Nurlindah Hamrun ◽

Bahruddin Thalib ◽

Dahlang Tahir ◽

Syaharuddin Kasim ◽

Ahmad F. Nugraha

Keyword(s):

Water Content ◽

Sodium Alginate ◽

Brown Algae ◽

Physical Characteristics ◽

Basic Material ◽

Impression Material ◽

Test Water ◽

Dental Impression

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IMPROVEMENT OF THE SAMPLE PREPARATION IN DETERMINATION OF THE MICROELEMENT COMPOSITION OF BROWN ALGAE USING X-RAY FLUORESCENCE ANALYSIS WITH TOTAL EXTERNAL REFLECTION

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2017-83-12-12-20 ◽

2017 ◽

Vol 83 (12) ◽

pp. 12-20

Author(s):

A. V. Malkov ◽

A. Yu. Kozhevnikov ◽

T. M. Konstantinova ◽

D. S. Kosyakov ◽

A. E. Parshina

Keyword(s):

Sample Preparation ◽

Brown Algae ◽

Fluorescence Analysis ◽

Total External Reflection ◽

X Ray ◽

Microelement Composition

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CHLOROFUCINE (CHLOROPHYLL γ), A GREEN PIGMENT OF DIATOMS AND BROWN ALGAE

Journal of Biological Chemistry ◽

10.1016/s0021-9258(18)72486-1 ◽

1942 ◽

Vol 144 (3) ◽

pp. 625-636

Author(s):

Harold H. Strain ◽

Winston M. Manning

Keyword(s):

Brown Algae ◽

Green Pigment

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In Vitro Chemopreventive Potential of Phlorotannins-Rich Extract from Brown Algae by Inhibition of Benzo[a]pyrene-Induced P2X7 Activation and Toxic Effects

Marine Drugs ◽

10.3390/md19010034 ◽

2021 ◽

Vol 19 (1) ◽

pp. 34

Author(s):

Mélody Dutot ◽

Elodie Olivier ◽

Sophie Fouyet ◽

Romain Magny ◽

Karim Hammad ◽

...

Keyword(s):

Brown Algae ◽

P2x7 Receptor ◽

Biological Activities ◽

Receptor Activation ◽

Cytotoxic Effects ◽

Human Lung Cells ◽

Cytochrome P450 Activity ◽

Species Production ◽

E Cadherin

Phlorotannins are polyphenols occurring exclusively in some species of brown algae, known for numerous biological activities, e.g., antioxidant, antiproliferative, antidiabetic, and antiallergic properties. Their effects on the response of human lung cells to benzo[a]pyrene (B[a]P) has not been characterized. Our objective was to in vitro evaluate the effects of a phlorotannin-rich extract obtained from the brown algae Ascophyllum nodosum and Fucus vesiculosus on B[a]P cytotoxic effects. The A549 cell line was incubated with B[a]P for 48 and 72 h in the presence or absence of the brown algae extract. Cytochrome P450 activity, activation of P2X7 receptor, F-actin disorganization, and loss of E-cadherin expression were assessed using microplate cytometry and fluorescence microscopy. Relative to control, incubation with the brown algae extract was associated with lower B[a]P-induced CYP1 activity, lower P2X7 receptor activation, and lower reactive oxygen species production. The brown algae extract inhibited the alterations of F-actin arrangement and the downregulation of E-cadherin expression. We identified a phlorotannins-rich extract that could be deeper investigated as a cancer chemopreventive agent to block B[a]P-mediated carcinogenesis.

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