In most biochemistry text books, stachyose is given as the classic example for a tetrasaccharide. Some books list for a pentasaccharide, verbascose. Stachyose was first described in 1890 by von Planta and Schulze (1), who first isolated it and crystallized it from the rhizomes of Stachys tuberifera, the Japanese artichoke. They described it as a non-reducing trisaccharide, [a]D = + 148°, composed of fructose, glucose and galactose. In 1903, Tanret (2) established stachyose as a tetrasaccharide when he showed that it was identical with what he had named manneotetrose from ash manna (3).
Proceedings of the Iowa Academy of Science
©1952 Iowa Academy of Science, Inc.
Wild, Gene M. and French, Dexter
"The Galactan Series of Oligosaccharides,"
Proceedings of the Iowa Academy of Science, 59(1), 226-230.
Available at: https://scholarworks.uni.edu/pias/vol59/iss1/28