The Experts below are selected from a list of 237 Experts worldwide ranked by ideXlab platform
Maria Teresa Rodriguezestrada - One of the best experts on this subject based on the ideXlab platform.
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current and new insights on phytosterol oxides in plant sterol enriched food
Chemistry and Physics of Lipids, 2011Co-Authors: Guadalupe Garciallatas, Maria Teresa RodriguezestradaAbstract:Over the past 15 years, plant sterol-enriched foods have faced a great increase in the market, due to the asserted cholesterol-lowering effect of plant Sterols. However, owing to their chemical structures, plant Sterols can oxidize and produce a wide variety of oxidation products with controversial biological effects. Although oxyphytoSterols can derive from dietary sources and endogenous formation, their single contribution should be better defined. The following review provides an overall and critical picture on the current knowledge and future perspectives of plant Sterols-enriched food, particularly focused on occurrence of plant sterol oxidation products and their biological effects. The final objective of this overview is to evince the different aspects of plant Sterols-enriched food that require further research, for a better understanding of the influence of plant Sterols and their oxides on consumers’ health.
Maria Teresa Rodriguez-estrada - One of the best experts on this subject based on the ideXlab platform.
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Current and new insights on phytosterol oxides in plant sterol-enriched food
Chemistry and Physics of Lipids, 2011Co-Authors: Guadalupe Garcia-llatas, Maria Teresa Rodriguez-estradaAbstract:Over the past 15 years, plant sterol-enriched foods have faced a great increase in the market, due to the asserted cholesterol-lowering effect of plant Sterols. However, owing to their chemical structures, plant Sterols can oxidize and produce a wide variety of oxidation products with controversial biological effects. Although oxyphytoSterols can derive from dietary sources and endogenous formation, their single contribution should be better defined. The following review provides an overall and critical picture on the current knowledge and future perspectives of plant Sterols-enriched food, particularly focused on occurrence of plant sterol oxidation products and their biological effects. The final objective of this overview is to evince the different aspects of plant Sterols-enriched food that require further research, for a better understanding of the influence of plant Sterols and their oxides on consumers' health. © 2011 Elsevier Ireland Ltd.
Guadalupe Garciallatas - One of the best experts on this subject based on the ideXlab platform.
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current and new insights on phytosterol oxides in plant sterol enriched food
Chemistry and Physics of Lipids, 2011Co-Authors: Guadalupe Garciallatas, Maria Teresa RodriguezestradaAbstract:Over the past 15 years, plant sterol-enriched foods have faced a great increase in the market, due to the asserted cholesterol-lowering effect of plant Sterols. However, owing to their chemical structures, plant Sterols can oxidize and produce a wide variety of oxidation products with controversial biological effects. Although oxyphytoSterols can derive from dietary sources and endogenous formation, their single contribution should be better defined. The following review provides an overall and critical picture on the current knowledge and future perspectives of plant Sterols-enriched food, particularly focused on occurrence of plant sterol oxidation products and their biological effects. The final objective of this overview is to evince the different aspects of plant Sterols-enriched food that require further research, for a better understanding of the influence of plant Sterols and their oxides on consumers’ health.
Guadalupe Garcia-llatas - One of the best experts on this subject based on the ideXlab platform.
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Current and new insights on phytosterol oxides in plant sterol-enriched food
Chemistry and Physics of Lipids, 2011Co-Authors: Guadalupe Garcia-llatas, Maria Teresa Rodriguez-estradaAbstract:Over the past 15 years, plant sterol-enriched foods have faced a great increase in the market, due to the asserted cholesterol-lowering effect of plant Sterols. However, owing to their chemical structures, plant Sterols can oxidize and produce a wide variety of oxidation products with controversial biological effects. Although oxyphytoSterols can derive from dietary sources and endogenous formation, their single contribution should be better defined. The following review provides an overall and critical picture on the current knowledge and future perspectives of plant Sterols-enriched food, particularly focused on occurrence of plant sterol oxidation products and their biological effects. The final objective of this overview is to evince the different aspects of plant Sterols-enriched food that require further research, for a better understanding of the influence of plant Sterols and their oxides on consumers' health. © 2011 Elsevier Ireland Ltd.
Volker Thiel - One of the best experts on this subject based on the ideXlab platform.
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the Sterols of calcareous sponges calcarea porifera
Chemistry and Physics of Lipids, 2008Co-Authors: Andrea Hagemann, Oliver Voigt, Gert Worheide, Volker ThielAbstract:Abstract Sponges are sessile suspension-feeding organisms whose internal phylogenetic relationships are still the subject of intense debate. Sterols may have the potential to be used as independent markers to test phylogenetic hypotheses. Twenty representative specimens of calcareous sponges (class Calcarea, phylum Porifera) with a broad coverage within both subclasses Calcinea and Calcaronea were analysed for their sterol content. Two major pseudohomologous series were found, accompanied by some additional Sterols. The first series encompassing conventional C27 to C29Δ5,7,22 Sterols represented the major Sterols, with ergosterol (ergosta-5,7,22-trien-3β-ol, C28Δ5,7,22) being most prominent in many species. The second series consisted of unusual C27 to C29Δ5,7,9(11),22 Sterols. Cholesterol occurred sporadically, mostly in trace amounts. The sterol patterns did not resolve intraclass phylogenetic relationships, namely the distinction between the subclasses, Calcinea and Calcaronea. This pointed towards major calcarean lipid traits being established prior to the separation of subclasses. Furthermore, calcarean sterol patterns clearly differ from those found in Hexactinellida, whereas partial overlap occurred with some Demospongiae. Hence, Sterols only partly reflect the phylogenetic separation of Calcarea from both of the other poriferan classes that was proposed by recent molecular work and fatty acid analyses.
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The Sterols of calcareous sponges (Calcarea, Porifera).
Chemistry and physics of lipids, 2008Co-Authors: Andrea Hagemann, Oliver Voigt, Gert Worheide, Volker ThielAbstract:Sponges are sessile suspension-feeding organisms whose internal phylogenetic relationships are still the subject of intense debate. Sterols may have the potential to be used as independent markers to test phylogenetic hypotheses. Twenty representative specimens of calcareous sponges (class Calcarea, phylum Porifera) with a broad coverage within both subclasses Calcinea and Calcaronea were analysed for their sterol content. Two major pseudohomologous series were found, accompanied by some additional Sterols. The first series encompassing conventional C(27) to C(29)Delta(5,7,22) Sterols represented the major Sterols, with ergosterol (ergosta-5,7,22-trien-3beta-ol, C(28)Delta(5,7,22)) being most prominent in many species. The second series consisted of unusual C(27) to C(29)Delta(5,7,9(11),22) Sterols. Cholesterol occurred sporadically, mostly in trace amounts. The sterol patterns did not resolve intraclass phylogenetic relationships, namely the distinction between the subclasses, Calcinea and Calcaronea. This pointed towards major calcarean lipid traits being established prior to the separation of subclasses. Furthermore, calcarean sterol patterns clearly differ from those found in Hexactinellida, whereas partial overlap occurred with some Demospongiae. Hence, Sterols only partly reflect the phylogenetic separation of Calcarea from both of the other poriferan classes that was proposed by recent molecular work and fatty acid analyses.
