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C Lintas

Publications and source records attributed to C Lintas.

At least 19 recordsLinked to original sources
PubMed1998

Genetic variation of the european eel (Anguilla anguilla)

The genetic population structure of the European eel Anguilla anguilla L. was investigated by sequencing the mitochondrial D-loop region of 55 eels caught at different European locations. In total, 51 haplotypes were identified. Pairwise genetic distances ranged from 0% to 6.33% with an average value +/- SD of 3.01% +/- 1.18%, indicating little DNA differentiation among the European eel population. None of the node bifurcations of the neighbor-joining phylogenetic tree was strongly supported, suggesting that all European eels derive from a common genetic pool. The same result was obtained by a statistical test that confirmed the absence of geographic subdivision in the genotypes of the European eel population. The reported genetic homogeneity of the European eel is discussed in relation to different hypothetical life history scenarios.

Journal Article↗
PubMed1993

1H and 23Na NMR relaxation times study of pectin solutions and gels.

1H and 23Na longitudinal and transverse relaxation times have been measured to examine the concentration dependence of the dynamic behaviour of pectin solutions and gels. T1 and T2 relaxation times were measured in HDE pectin solutions and gels prepared with different cosolutes. A lowering of T1 and T2 values was observed in relation to a better efficiency of the intermolecular forces between polymer molecules and/or the formation of more extended junction zones. The T1/T2 ratio was also exploited indicating that even bulk water experiences anisotropic motions due to the gel formation. A correspondence of NMR results with previous reported data of rheological measurements of pectin gels prepared with the same cosolutes was found.

Chemical Phenomena↗
PubMed1988

Food fiber choices for diabetic diets.

The use of dietary fiber (DF) in the diet of diabetics, although recommended, is often prevented by a limited tolerance and/or by the high cost and unpalatability of fiber supplements. Knowing that only or mainly the water soluble fraction of DF is effective in modulating postprandial hyperglycemia, the DF content (soluble, insoluble, and total) of a variety of common foodstuffs was determined. Such data were then utilized in the formulation of two complete meals, isocaloric and isoglucidic, characterized by a high-soluble, low-soluble, and total fiber content. The meals were administered to 13 NIDDM patients in good metabolic control. The data confirmed a significant reduction (p less than 0.001) of postprandial hyperglycemia and a moderate less significant reduction of insulinemia after the high fiber meal.

Adult↗
PubMed1988

Soluble and insoluble dietary fibre in diabetic diets.

The possibility of modulating postprandial metabolic responses in diabetics by an increase in the amount of soluble fibre rather than by the use of the high amounts of total dietary fibre (DF), so far strongly advocated, was investigated. Soluble and insoluble DF components of common foodstuffs were analysed and the data utilized to formulate three different meals with similar quantities of available carbohydrate, protein and fat and differing only in the quantity and quality of DF: low fibre (LF), high soluble fibre (HSF) and high insoluble fibre (HIF). Ten NIDDM patients in good metabolic control received each test meal in randomized order at 2-week intervals. The postprandial blood glucose and serum insulin responses to the LF and HIF test meals were similar. The HSF meal produced significantly lower glucose (P less than 0.001) and insulin (P less than 0.05) responses, compared to either LF or HIF meals. Such results may be of relevance in the formulation of diabetic diets in order to prevent an excess of insoluble fibre, so improving patients' compliance. Fruits and vegetables may be used advantageously to increase quantities of soluble fibre, limiting excesses of legumes or guar additives.

Adult↗
PubMed1986

[Dietary fiber].

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Dietary Fiber↗
PubMed1984

Occurrence and distribution of n-alkanes in sucking-calf tissues.

Samples of subcutaneous and perirenal fat, muscle, heart, liver, kidney, and spleen from eleven 4-month-old sucking calves were analyzed for their hydrocarbon composition. Qualitative and quantitative determinations were carried out by gas chromatography. Ranges of total hydrocarbons and odd-even hydrocarbon distribution for each tissues are reported. In general, a predominance of odd-numbered hydrocarbons in the high carbon number range was observed. As compared to adult bovines, calf tissues, with the exception of adipose tissues, show higher amounts of total hydrocarbons.

Aging↗
PubMed1983

Potassium nitrate and nitrosamine formation.

The influence of potassium nitrate on the formation of nitrosamines in salami was studied. Samples of salami were prepared, with and without the addition of potassium nitrate. Under the conditions of the experiment, potassium nitrate did not represent a source of either nitrite or nitrosamines. Independently of the presence of potassium nitrate in the sample formulation, the growth of bacterial flora reached a maximum in the first 20 days of the ripening process.

Bacteria↗
PubMed1979

Distribution of hydrocarbons in bovine tissues.

Liver, heart, kidneys, muscle and adipose (perirenal and subcutaneous) tissues were collected from six animals for analysis of their hydrocarbon composition. Qualitative and quantitative determinations were carried out by gas chromatography and combined gas chromatography-mass spectrometry. Although differing in the proportions, a homologous series of n-alkanes ranging from n-C12 to n-C31 was found in all the samples examined. The isoprenoid hydrocarbons phytane and phytene (phy-1-ene and phyt-2-ene) were also identified.

Adipose Tissue↗