نتایج جستجو برای: carbon compounds
تعداد نتایج: 494530 فیلتر نتایج به سال:
Amadori compounds, derived from the condensation of amino acids with reducing sugars in the Mainard reaction, have been isolated from browned, dehydrated fruits and vegetables, bakery products, cane and beet molasses. and cured tobacco. The nonvolatile compounds' in their enolic forms are precursors of flavor compounds, particularly those with burnt and caramel-like aromas. A model basic Amador...
Introduction: Active packaging is one of the innovations in food packaging industry that would be a respons to the changing needs of consumers and markets. In this technique, materials such as adsorbents oxygen, moisture, carbon dioxide, ethylene and carbon dioxide-releasing flavor compounds, antimicrobials, antioxidants and various aromatic compounds are used. In the last deca...
B y now you should be familiar with position isomers wherein compounds of the same molecular formula differ because substituents, chain branches, and so on, are not at the same positions in the molecules. 1-Chloropropane and 2-chloropropane are straightforward examples of position isomers. A much more subtle form of isomerism is present when two dijfjrerent compounds have the same molecular for...
Electrochemical sensors and biosensors have attracted considerable attention for the sensitive detection of a variety of biological and pharmaceutical compounds. Since the discovery of carbon-based nanomaterials, including carbon nanotubes, C60 and graphene, they have garnered tremendous interest for their potential in the design of high-performance electrochemical sensor platforms due to their...
The photooxidation of methyl pheophorbides, derived from bacteriochlorophyll c, yields ring-opened acetylbilitrienes which are structurally related to mammalian bile pigments. The mechanism of this photooxidation, and that of certain mesomethyl-substituted model compounds, has been studied using 18O labeling with molecular oxygen. In all cases, the methine bridge carbon atoms were retained in t...
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