Determination of Fatty Acids and Stable Carbon Isotopic Ratio in Subcutaneous Fat to Identify the Feeding Regime of Iberian Pigs

2015 ◽  
Vol 63 (2) ◽  
pp. 692-699 ◽  
Author(s):  
María Asunción López-Bascón ◽  
Feliciano Priego-Capote ◽  
Mónica Calderón-Santiago ◽  
Verónica Sánchez de Medina ◽  
José Manuel Moreno-Rojas ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Isotopic Ratio ◽  
Subcutaneous Fat ◽  
Stable Carbon ◽  
Feeding Regime ◽  
Carbon Isotopic Ratio ◽  
Carbon Isotopic

Aircraft measurements of the stable carbon isotopic ratio of atmospheric methane over Siberia

1996 ◽  
Vol 10 (2) ◽  
pp. 223-231 ◽  
Author(s):  
Satoshi Sugawara ◽  
Takakiyo Nakazawa ◽  
Gen Inoue ◽  
Toshinobu Machida ◽  
Hitoshi Mukai ◽  
...  
Keyword(s):  
Isotopic Ratio ◽  
Aircraft Measurements ◽  
Atmospheric Methane ◽  
Stable Carbon ◽  
Carbon Isotopic Ratio ◽  
Carbon Isotopic

Detection of Adulterated Natural Sweeteners by Carbon Isotopic Ratio Analysis

2021 ◽  
Vol 36 (2) ◽  
pp. 148-153
Author(s):  
Hee-jin Choi ◽  
Jae-kyoo Lee ◽  
Ae-kyung Kim ◽  
Bo-kyeng Jung ◽  
Yun-jeong Yi ◽  
...  
Keyword(s):  
Isotopic Ratio ◽  
Ratio Analysis ◽  
Carbon Isotopic Ratio ◽  
Carbon Isotopic

Compound-specific stable carbon isotopic detection of pig product processing in British Late Neolithic pottery

Antiquity ◽  
2007 ◽  
Vol 81 (313) ◽  
pp. 743-754 ◽  
Author(s):  
Anna J. Mukherjee ◽  
Robert Berstan ◽  
Mark S. Copley ◽  
Alex M. Gibson ◽  
Richard P. Evershed
Keyword(s):  
Fatty Acids ◽  
Stable Carbon ◽  
Late Neolithic ◽  
Carbon Isotopic ◽  
Prehistoric Pottery ◽  
Ruminant Animals ◽  
Neolithic Pottery

By extracting lipids from potsherds and determining the δ13C of the most abundant fatty acids, degraded fats from ruminant animals, such as cattle, and non-ruminant animals, such as pigs, can be distinguished. The authors use this phenomenon to investigate Late Neolithic pig exploitation and find that the pig ‘signature’ was more frequently found among residues from Grooved Ware than other prehistoric pottery types.

Determination of the stable carbon isotopic compositions of 2-methyltetrols in ambient aerosols from the Changbai Mountains

2010 ◽  
Vol 24 (11) ◽  
pp. 1625-1628 ◽  
Author(s):  
Li Li ◽  
Shihuai Deng ◽  
Wu Wang ◽  
Huaijian Li ◽  
Xiaohong Zhang ◽  
...  
Keyword(s):  
Changbai Mountains ◽  
Stable Carbon ◽  
Ambient Aerosols ◽  
Isotopic Compositions ◽  
Carbon Isotopic

scholarly journals Isotopic Ratios in Comets

1991 ◽  
Vol 116 (2) ◽  
pp. 879-895 ◽  
Author(s):  
V. Vanysek
Keyword(s):  
Isotopic Ratio ◽  
Chemical Fractionation ◽  
Interstellar Clouds ◽  
Outer Planets ◽  
Carbon Isotopic Ratio ◽  
Carbon Isotopic ◽  
Nuclear Species ◽  
Carbon Reservoir ◽  
Protosolar Nebula ◽  
The Individual

Abstract.The isotopic abundances depend on the universal evolution of elements and on the individual history of particular objects. Since it is believed that unprocessed material of the solar nebula is preserved in comets, the data concerning the abundance of stable isotopes in these primitive bodies are of some importance in the cosmological context. The present status of this problem is reviewed. The reliability of results for nuclear species with cosmological and cosmogonical implications, such as D/H, C 12/13, N 14/15, O 16/18, and Mg 24/25/26, is discussed. Significant variation is found for the isotopic abundance of carbon, depending upon which carbon reservoir is sampled. Deuterium is probably enhanced relative to the interstellar ratio. For other isotopes, the ratios are close to those of the terrestrial data. The tendency of the D/H ratio to be at higher values indicates a low temperature in the environment of the comet’s formation, and, together with similar effects in the outer planets, suggests that there were two different primordial reservoirs of deuterium in the solar system. The 12C/13C ratio inferred from in situ mass spectrometry of the dust, as well as from the ground-based optical spectra of the Swan band, tends to be approximately equal to the average terrestrial ratio (89) or larger. Recent results obtained from the CN band provide a significantly lower value (about 65), which corresponds to the carbon isotopic ratio in the diffuse interstellar clouds. The enhancement of deuterium and the possible differences of the carbon isotopic ratio in different species and refractory material are indicative of chemical fractionation processes in the protosolar nebula.

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