Heterocyclic amine - Wikipedia
Heterocyclic amines, also sometimes referred to as HCAs, are chemical compounds containing at least one heterocyclic ring, which by definition has atoms of at least two different elements, as well as at least one amine (nitrogen-containing) group.
Chemicals in Meat Cooked at High Temperatures and Cancer Risk
Heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs) are chemicals formed when muscle meat, including beef, pork, fish, or poultry, is cooked using high-temperature methods, such as pan frying or grilling directly over an open flame (1).
Heterocyclic Amine - an overview | ScienceDirect Topics
Heterocyclic amines (HCAs) are the carcinogenic and mutagenic chemicals formed from cooking muscle meats such as beef, pork, fowl, and fish. HCAs form when amino acids and creatine react at high cooking temperatures and are formed in greater quantities when …
24.9: Heterocyclic Amines - Chemistry LibreTexts
2024年9月30日 · As noted in Section 15.5 in connection with a discussion of aromaticity, a cyclic organic compound that contains atoms of two or more elements in its ring is a called a heterocycle. Heterocyclic amines are particularly common, …
24.9: Heterocyclic Amines - Chemistry LibreTexts
account for the difference in basicity between pyridine, pyrrole and other amines. explain why pyridine undergoes electrophilic substitution much less readily than does benzene. identify the presence of a fused‑ring heterocycle in a given structure.
24.9 Heterocyclic Amines - Organic Chemistry - OpenStax
Heterocyclic amines are particularly common, and many have important biological properties. Pyridoxal phosphate, a coenzyme; sildenafil (Viagra), a well-known pharmaceutical; and heme, the oxygen carrier in blood, are a few examples.
10.S: Amines and Heterocycles (Summary) - Chemistry LibreTexts
2024年11月19日 · 24.9 Heterocyclic Amines. Heterocyclic structures are found in many natural products an example of some nitrogen compounds, known as alkaloids because of their basic properties. Pyrrole is obtained commercially by the reaction of furan with ammonia. In a pyrrole ring, the nitrogen lone pair is part of the aromatic sextet, thus not very basic.
12.6 Heterocyclic Amines – Fundamentals of Organic Chemistry
Heterocyclic amines are particularly common, and many have important biological properties. Pyridoxal phosphate, a coenzyme; sildenafil (Viagra), a well-known pharmaceutical; and heme, the oxygen carrier in blood, are a few examples.
Well-done Meat Intake, Heterocyclic Amine Exposure, and …
Heterocyclic amines (HCAs) are a group of mutagenic compounds found in cooked meats, particularly well-done meats. HCAs are some of most potent mutagens detected using the Ames/salmonella tests and have been clearly shown to induce tumors in …
What Are Heterocyclic Amines? - AllTheScience
2024年5月21日 · Heterocyclic amines consist of at least one ring of two or more different elements. Bonded to this ring is at least one amine. From the basic structure of ammonia, one …