Stachyosis

Structural formula
General
Surname	Stachyosis
other names	α- D -galactopyranosyl- (1 → 6) -α- D -galactopyranosyl- (1 → 6) -α- D -glucopyranosyl- (1 → 2) -β- D -fructofuranoside; Magnifying glass; Cicerose;
Molecular formula	C 24 H 42 O 21
External identifiers / databases
EC number	207-427-3
ECHA InfoCard	100.006.754
PubChem	439531
Wikidata	Q283435
properties
Molar mass	666.58 g mol −1
Physical state	firmly
Melting point	167-170 ° C
solubility	well soluble in water
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	no GHS pictograms
H and P phrases	H: no H-phrases
	P: no P-phrases
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Stachyose is a tetrasaccharide made from sucrose (glucose + fructose) and two galactose molecules . It belongs to the so-called raffinose family.

Occurrence

Bulbous ziest ( Stachys tuberifera )

This weakly sweet-tasting compound is named after the mint plant Stachys tuberifera ("Knollen-Ziest") in which it occurs. In addition, it can also be detected in other mint family and in the legume soybean - from whose flour it is obtained by extraction.

properties

Stachyosis has a melting point of approx. 170 ° C and does not reduce Fehling's solution . During hydrolysis , one mole of stachyose yields 2 moles of D - galactose , one mole of D - glucose and one mole of D - fructose . The invertase enzyme leads to the products manninotriose and fructose.

use

Stachyosis cannot be used in the small intestine by the body's own enzymes. It therefore reaches the large intestine unchanged with the food pulp and is broken down by intestinal bacteria there. Therefore, stachyose for gas development in the intestine and thus to flatulence ( flatus result).

Web links

Commons : Stachyosis - collection of images, videos and audio files

Individual evidence

↑ ^a ^b ^c ^d Entry on stachyosis. In: Römpp Online . Georg Thieme Verlag, accessed on February 7, 2019.
↑ ^a ^b Datasheet Stachyose hydrate from Stachys tuberifera at Sigma-Aldrich , accessed on February 7, 2019 ( PDF ).
↑ Heide Jenik (Ed.), Michael Miko (Ed.), Matthias Kraft (Ed.), Ralf J. Schulz (Ed.): Guideline Nutritional Medicine . Elsevier, Munich 2005; ISBN 978-3-437-56530-4 ; P. 11.

[Römpp-1] Entry on stachyosis. In: Römpp Online . Georg Thieme Verlag, accessed on February 7, 2019.

[Sigma-2] Datasheet Stachyose hydrate from Stachys tuberifera at Sigma-Aldrich , accessed on February 7, 2019 ( PDF ).

[3] Heide Jenik (Ed.), Michael Miko (Ed.), Matthias Kraft (Ed.), Ralf J. Schulz (Ed.): Guideline Nutritional Medicine . Elsevier, Munich 2005; ISBN 978-3-437-56530-4 ; P. 11.