Load capacity: Determine the amp size of the circuit breaker you need to install based on the total circuit load. Remember that the safety rating for circuit breakers is 80 percent of the maximum load. Tip: Most appliances have the amp rating listed on them.
Histamine in fish and other foods is produced by the decarboxylation of the amino acid histidine and fish species that have high levels of free histidine in their tissues are most likely to develop toxic histamine levels.combrotoxin is most often associated with scombroid fish, especially tuna, skipjack, bonito and mackerel, but other non-scombroid fish, such as sardines, herring, pilchards, marlin and mahi-mahi have been involved in outbreaks of illness. There are also reports that scombrotoxin could occur in salmon species.
It is destroyed by the enzyme diamine oxidase (histiminase), which is also involved in the metabolism of other bioactive amines. Histamine is synthesized in all tissues, but is particularly abundant in skin, lung and gastrointestinal tract.Mast cells, which are present in many tissues, are a prominent source of histamine, but histamine is also secreted by a number of other immune cells.hese effects also depend on which receptor is being bound by histamine; for example, the H2 receptor mediates bronchodilation. One of the first bioassays for histamine involved measuring contraction of guinea pig intestinal muscle.