• Keine Ergebnisse gefunden

The Lipid and Resin Composition of Laretia compacta Phil. from the Andes of Chile

N/A
N/A
Info
Herunterladen
Protected

Academic year: 2022

Aktie "The Lipid and Resin Composition of Laretia compacta Phil. from the Andes of Chile"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Jetzt herunterladen ( 1 Seite )

Volltext

(1)

The Lipid and Resin Composition of Laretia compacta Phil.

from the Andes of Chile

Bernd R. T. Simoneit

a

and Borys M. Didyk

b

aPetroleum and Environmental Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, U. S. A.

bRefineria del Petroleo, S. A., Concon, Chile

Z. Naturforsch.54 c,309Ð313 (1999); received October 7, 1998/February 9, 1999 Laretia, Resin, Sesquiterpenoids, Kaurene and Phyllocladene Diterpenoids, Phytosterols

The lipid/resin components ofLaretia compactawere characterized by GC-MS and CSIA.

The lipid components consist ofn-alkanes,n-alkanoic acids andn-alkanols all with low car- bon number maxima and high CPI values. The resin components are comprised of major amounts of tetracyclic diterpenoids with a minor content of mono- and sesquiterpenoids. The kaurene skeleton predominates with some phyllocladenes. Phytosterols are trace compo- nents. Theδ13C data of the individual alkanes in the hydrocarbon fraction place this species in the C4plant group.

Reprint requests to Prof. B. R. T. Simoneit. Fax: 541-7 37-20 64. E-mail: simoneit@oce.orst.edu

Referenzen

Jetzt herunterladen ( PDF - 1 Seite - 24.26 KB )

ÄHNLICHE DOKUMENTE

SICHERHEITSDATENBLATT POLYURETHANE RESIN UR5097B

Dieses Produkt enthält keine Bestandteile, die als PBT oder vPvB eingestuft sind.. ABSCHNITT 3: Zusammensetzung / Angaben zu Bestandteilen

Influence of resin cement: In vitro color changes

Lithium disilicate ceramic blocks IPS e.max Press HT (Ivoclar Vivadent, Schaan, Liechtenstein) color A2 (Figure 2) were used for the production of 40 ceramic samples with a

Effectiveness of Home Bleaching Treatment after Resin Infiltrant Application

Little is known about the influence of bleaching on teeth treated with resin infiltration, considering that ICON resin could behave as a barrier to bleaching gel penetration as a

without Resin Markers

The results from this study show that placing resin mark- ers on the palatal area of the edentulous maxilla could improve the precision of the IOS and reduce the scan- ning time

Surface Properties of a Bulk-fill Composite Resin

Objective: To determine the effects of different polishing protocols and curing times on the surface roughness (SR), surface gloss (SG) and surface hardness (SH) of a

Synthesis of AM15C5 Bonded Merrifield Peptide Resin and its Separating Properties

a Department of Chemistry, Physical Chemistry Laboratory, College of Natural Sciences, Chungbuk National University, Cheongju 361 Ð 763, Republic of Korea. b School of

Synthesis of AM15C5 Bonded Merrifield Peptide Resin and its Separating Properties

In this work, magne- sium isotope separation was investigated using a AM15C5 bonded Merrifield peptide resin by ion exchange elution chromatography.. Results

New Semisynthetic Antimicrobial Labdane-Type Diterpenoids Derived from the Resin “Ladano” of Cistus creticus

The antimicrobial activity of fifteen semisynthetic labdane-type diterpenes derived from the two major natural compounds 3 and 4 of the resin “ladano” of Cistus creticus is