TY  - JOUR
A1  - Vendl, Oliver
A1  - Wawrosch, Christoph
A1  - Noe, Christian R.
A1  - Molina Medina, Carlos Mauricio
A1  - Kahl, Günter
A1  - Kopp, Brigitte
T1  - Diosgenin contents and DNA fingerprint screening of various Yam (Dioscorea sp.) genotypes
T2  - Zeitschrift für Naturforschung, C
N2  - In addition to the importance of many Dioscorea species (yams) as starchy staple food, some representatives are known and still used as a source for the steroidal sapogenin diosgenin, which, besides phytosterols derived from tall-oil, is an important precursor for partial synthesis of steroids for pharmaceutical research and applications. While in edible yams the diosgenin content should be as low as possible, a high yield of the compound is preferable for cultivars which are grown for the extraction of sterols. In the past, miscalculations and insufficiently precise techniques for quantification of diosgenin prevailed. Therefore we set out to re-evaluate the steroid content of a world collection of Dioscorea species, using leaves as sample material. We optimized diosgenin quantification techniques and fingerprinted the whole collection with the DNA amplification fingerprinting (DAF) technique. Total diosgenin contents ranged from 0.04 to 0.93% of dry weight within the collection. Several Dioscorea cultivars can be characterized via their DAF fingerprint patterns.
KW  - Dioscorea
KW  - Diosgenin Production
KW  - DNA Amplification Fingerprinting
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/79990
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-799902
SN  - 0939-5075
SN  - 1865-7125
VL  - 61.2006
IS  - 11-12
SP  - 847
EP  - 855
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -