Biological Heart Valves. Biological Heart Valves are made of tissues and valves derived from animals or human donors. Their biggest advantage is that they do not cause blood clotting on their surface and truly replicate the form and function of the normal human valve.
The biggest difference between cured and uncured is the fact that the uncured uses natural curing agents, such as celery powder, which transforms into nitrite when it is processed. Thus, uncured products have labels with: âNo Nitrates or Nitrites added except those naturally in celery powder or juiceâ.
All ham is pork. Not all pork is ham. Generally, in the US, ham is a cured leg of pig, or cured section of same. An uncured leg of pig is called a whole ham, and half a leg of pig (usually a Boston Butt) is called half a ham, but that isn't really widely known to Americans, who generally don't buy meat from butchers any more.