9 Papers
168 Citations
R. Ikan is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Organic matter & Sediment. The author has an hindex of 6, co-authored 9 publications. Previous affiliations of R. Ikan include Hebrew University of Jerusalem.
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Papers
Thermal alteration experiments on organic matter in recent marine sediment—II. Isoprenoids☆
TL;DR: Several isoprenoid compounds were isolated from a heat-treated marine sediment in the southern California continental shelf (from Tanner Basin) which were not present in the original sediment.
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C18-isoprenoid ketone in recent marine sediment
TL;DR: In this paper, a C18-isoprenoid ketone (6,10,14-trimethylpentadecan-2-one) was found in both the heat-treated and untreated sediment.
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Thermal alteration experiments on organic matter in recent marine sediment—III. Aliphatic and steroidal alcohols
TL;DR: In this article, Tanner Basin sediments from Tanner Basin (off southern California) and Bandaras Bay (in Gulf of California) have been analyzed for normal, isoprenoid and steroidal alcohols using chromatographic (column, GLC, TLC), and spectroscopic (uv, ir, MS) methods, prior to and after heat-treatment (from 65 to 150°C).
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Thermal alteration experiments on organic matter in recent marine sediment—I. Pigments
TL;DR: In this paper, the Tanner Basin sediment was analyzed for photosynthetic pigments and their derivatives, namely carotenes and chlorins, and the results revealed the presence of α-ionene and 2,6-dimethylnaphthalene, thermal-degradation products of β-carotene.
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Characterization of natural and synthetic humic substances (melanoidins) by stable carbon and nitrogen isotope measurements and elemental compositions
TL;DR: In this article, stable carbon isotope ratios of the starting sugars and amino acids are mostly preserved in laboratory synthetic melanoidins, indicating that nitrogen fractionation could occur during the rate-determining step in the Maillard reaction.
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