Pineapple (now termed pine cones). When European explorers encountered this tropical fruit in the Americas, they called them "pineapples" (first referenced in 1664, for resemblance to pine cones). In the scientific binomial "Ananas comosus", "ananas", the original name of the fruit, comes from the Tupi word "nanas", meaning "excellent fruit", as recorded by André Thevet in 1555, and "comosus", "tufted", refers to the stem of the fruit. Other members of the genus "Ananas" are often called pine, as well, in other languages. The pineapple is a herbaceous perennial, which grows to tall, although sometimes it can be taller. In appearance, the
Fruit preserves pH adjusting agent or an antifoaming agent. Both types cannot contain apple or rhubarb fruit. Though both types of jam are very similar, there are some differences in fruit percent, added pectin and added acidity. Fruit jam must have at least 45% fruit and may contain added pectin to compensate for the natural pectin level found in the fruit. Fruit jam with pectin need only contain 27% fruit and is allowed to contain added acidity to compensate for the natural acidity of the fruit. In the U.S., jelly (from the French "gelée") refers exclusively to a clear or translucent fruit