Characterization, cinnamate-containing

Synthesis, Characterization, and Photochemistry of a Cinnamate-Containing Liquid-Crystalline Side-Chain Polymer... 

Echinacea purpurea roots have been substituted for a long time with Partheni-um integrifolium. The sesquiterpene esters, echinadiol-, epoxyechinadiol-, echinax-anthol- and dihydroxy-nardol-cinnamate, described as constituents of Echinacea purpurea roots [81], were in fact derived from the adulterant Parthenium integri-folium which was mistakenly processed at that time. Since both species contain different constituents, HPLC and TLC methods have been developed to distinguish them [32]. Parthenium integrifolium is characterized by the sesquiterpene esters (Fig. 10) which cannot be found in Echinacea roots. 

Sashiwa H, Kawasaki N, Nakayama A et al (2002) Chemical modification of chitosan. 13. (1) Synthesis of organosoluble, palladium adsorbable, and biodegradable chitosan derivatives toward the chemical plating on plastics. Biomacromolecules 3 1120-1125 36. Wu YS, Hisada K, Maeda S et al (2007) Fabrication and structural characterization of the Langmuir-Blodgett films from a new chitosan derivative containing cinnamate chromo-phores. Carbohyd Poiym 68 766-772... 

Because products that can be smelled can be differentiated by their GC- SNIF olfactograms, it becomes possible to classify samples using statistical tools. In the case of antioxidant addition in Champagne wines, a factorial correspondence analysis was performed (Fig. 4) (34). The first axis (FI) differentiates wines that have been protected with an antioxidant (BHA), and the third axis (F3) distinguishes between years of wine production (Chi and Ch2). BHA-containing wines were characterized by a higher odor impact of diethyl succinate, ethyl cinnamate, and y-undecalactone. 

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