New metabolites from the brown alga Cystophora torulosa

1977 ◽  
Vol 30 (11) ◽  
pp. 2527 ◽  
Author(s):  
RP Gregson ◽  
R Kazlauskas ◽  
PT Murphy ◽  
RJ Wells
Keyword(s):  
Brown Alga ◽  
Complex Mixture ◽  
Soluble Extract ◽  
Straight Chain ◽  
New Metabolites

The lipid-soluble extract of the brown alga Cystophora torulosa has yielded a complex mixture of polyketide-derived alkenyl resorcinols and a phloroglucinol, together with two straight chain polyenes. Two polyprenyl chromans were also isolated in low yield.

A New Phenol from the Brown Alga Perithalia caudata Containing a 'Reverse' Isoprene Unit at the 4-Position

1979 ◽  
Vol 32 (12) ◽  
pp. 2783 ◽  
Author(s):  
AJ Blackman ◽  
C Dragar ◽  
RJ Wells
Keyword(s):  
Brown Alga ◽  
Para Position ◽  
Soluble Extract ◽  
Isoprene Unit ◽  
Naturally Occurring

The lipid-soluble extract of Perithalia caudata has been shown to contain 4-(1'',1''-dimethylprop-2-enyl)-2-(3''-methylbut-2''-enyl)phenol (1), which is the first example known of a naturally occurring phenol bearing a reversed isoprene unit in the para position.

Das Bürzeldrüsensekret des Papageientauchers (Fratercula arctica) / The Uropygyal Gland Fat of the Puffin (Fratercula arctica)

1970 ◽  
Vol 25 (1) ◽  
pp. 54-56 ◽  
Author(s):  
Jürgen Jacob ◽  
Gernot Grimmer
Keyword(s):  
Chain Length ◽  
Main Part ◽  
Carbon Number ◽  
Complex Mixture ◽  
Dodecanoic Acid ◽  
Fat Tissue ◽  
Straight Chain ◽  
Preen Gland ◽  
Fratercula Arctica

The uropygial (preen) gland fat of the puffin (fratercula arctica) is mainly a mixture of waxes (77%) and triglycerides (23%). The isolated triglycerides which are the main part of the fat tissue of the gland differ only little from the depot fat which was investigated simultaneously. After separation into groups of equal carbon number by preparative GLC the waxes were shown to be a complex mixture of esters between straight-chain, even-numbered alcohols (chain-length C8, C10, C12, C14 and C16) and octanoic, decanoic and dodecanoic acid.

ChemInform Abstract: NEW METABOLITES FROM THE BROWN ALGA CAULOCYSTIS CEPHALORNITHOS

1981 ◽  
Vol 12 (1) ◽  
Author(s):  
R. KAZLAUSKAS ◽  
J. MULDER ◽  
P. T. MURPHY ◽  
R. J. WELLS
Keyword(s):  
Brown Alga ◽  
New Metabolites

Two new furans from the brown alga Acrocarpia paniculata: the use of 4-phenyl-4H-1,2,4-triazoline-3,5-dione to determine the substitution pattern of a furan

1982 ◽  
Vol 35 (1) ◽  
pp. 165 ◽  
Author(s):  
R Kazlauskas ◽  
PT Murphy ◽  
RJ Wells ◽  
RP Gregson
Keyword(s):  
Brown Alga ◽  
Furan Ring ◽  
Soluble Extract ◽  
Substitution Pattern ◽  
Branched Chain

The dichloromethane-soluble extract of the brown alga Acrocarpia paniculata has yielded two homologous branched chain lipids containing a furan ring. Reaction of a substituted furan with 4-phenyl-4H-1,2,4-triazoline-3,5-dione to yield an alkyl 2-ene-1,4-dione was used to determine the orientation of substituents on a 2,3,5-substituted furan.

Six new metabolites from the brown alga halidrys siliquosa (phaeophyta, fucales)

Tetrahedron ◽  
1981 ◽  
Vol 37 (18) ◽  
pp. 3209-3213 ◽  
Author(s):  
M.D. Higgs ◽  
L.J. Mulheirn
Keyword(s):  
Brown Alga ◽  
New Metabolites

New metabolites from the brown alga Caulocystis cephalornithos

1980 ◽  
Vol 33 (9) ◽  
pp. 2097 ◽  
Author(s):  
R Kazlauskas ◽  
J Mulder ◽  
PT Murphy ◽  
RJ Wells
Keyword(s):  
Brown Alga ◽  
Freeze Dried ◽  
New Metabolites

The antiinflammatory principle of the brown alga Caulocystis cephalornithos has been shown to be 6-tridecylsalicylic acid. Four other metabolites, 3-tridecylphenol, pentadec-1-ene, (E)-heptadec-3-en- 2-one and 8-hydroxy-3-undecyl-1H-2-benzopyran-1-one were also isolated from the dichloromethane extract of the freeze-dried alga.

Analysis of the Labial Gland Secretions of the Male Bumble Bee Bombus perplexus Cresson (Hymenoptera: Apidae) from North America

2004 ◽  
Vol 59 (3-4) ◽  
pp. 263-270 ◽  
Author(s):  
Andreas Bertsch ◽  
Horst Schweer ◽  
Andreas Titze
Keyword(s):  
Complex Mixture ◽  
Gas Chromatography Mass Spectrometry ◽  
Bumble Bee ◽  
Labial Gland ◽  
Straight Chain ◽  
Rich Mixture ◽  
The North ◽  
Ionization Mode ◽  
Eurasian Species ◽  
Positive Ion

The labial gland secretions from males of the bumble bee Bombus (Pyrobombus) perplexus Cresson were analysed by gas chromatography/mass spectrometry (GC/MS) in the electron impact and positive ion chemical ionization mode. The major compound of the complex mixture of alkenols, alkenals, fatty acids, hydrocarbons, wax type esters and steroids is 3,7,11,15-tetramethyl-2,6,10-hexadecatrien-1-ol (geranylcitronellol), considerable amounts of hexadecan-1-ol and Z-9-hexadecen-1-ol were also found. All alcohols were present as esters of the detected acids. In older samples both the acids and the alcohols sometimes could not be detected in the GC; therefore, the possibility to check the detected acid-alcohol pattern by interpreting the wax type ester peaks is very instructive. Moreover, the labial gland contains a rich mixture of mono- and di-unsaturated straight chain hydrocarbons. The similarity in composition of the labial glands of the North American B. (Pyrobombus) perplexus with the Eurasian species B. (Pyrobombus) hypnorum corroborates the assumption that the two species are conspecific. The likely supposition that the hydrocarbons could play an essential role in the chemical communication in bumble bees is discussed.

Effect of the marine brown alga Canistrocarpus cervicornis on promastigote forms of Leishmania (L.) amazonensis

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
AO Santos ◽  
EA Britta ◽  
T Ueda-Nakamura ◽  
BP Dias Filho ◽  
EM Bianco ◽  
...  
Keyword(s):  
Brown Alga ◽  
Canistrocarpus Cervicornis ◽  
Marine Brown Alga
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