Botanical species · safety record

Dioscorea japonica

The EFSA Compendium of Botanicals holds 4 constituent measurements for Dioscorea japonica. This page reports what those source records contain and how to reach them. It carries no effect estimate, no dose and no recommendation.

Accepted name in source: Dioscorea japonica Thunb.

4Constituent measurements

0Safety records

3Cited sources

0Licensed products (Canada)

Regulatory presence

No Health Canada licensed natural health product in the snapshot names this species as a medicinal ingredient under this exact binomial. Absence here means absence from this one register under this one name, not absence from trade, and not a safety verdict.

What the records describe

Constituents measured

Plant parts

Preparations

Recorded constituents

What analytical work has found in this species, at which plant part and preparation. A measured constituent is a fact about material, not about effect.

Substance	Plant part	Preparation	Concentration	Analytical method	Source
Steroidal furostan saponins	Stem / stalk	Solvent extraction	—	Nuclear Magnetic Resonance (NMR)	Resolve DOI
Calcium oxalate	Leaves	—	—	Unspecified	No resolvable identifier
Diosgenin	Unspecified	Solvent extraction	0.07 Percent	—	No resolvable identifier
Prosapogenin a	Unspecified	Solvent extraction	0.07 Percent	—	No resolvable identifier

Cited sources

The literature the compendium cites for this species. Metatron Health has no relationship with these authors or journals and earns nothing from citing them.

Avula, Bharathi., Wang, Yan-Hong., Ali, Zulfiqar., Smillie, Troy J., Khan, Ikhlas A. Chemical fingerprint analysis and quantitative determination of steroidal compounds from Dioscorea villosa, Dioscorea species and dietary supplements using UHPLC-ELSD. Biomedical Chromatography, 2014, p. 281-294.
Kim, Ki Hyun., Kim, Min Ah., Moon, Eunjung., Kim, Sun Yeou., Choi, Sang Zin., Son, Mi Won., Lee, Kang Ro. Furostanol saponins from the rhizomes of Dioscorea japonica and their effects on NGF induction. BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 2011, vol. 21, no. 7, p. 2075-2078. DOI
Takami, Wataru. Formation of calcium oxalate crystals in the young leaf of Dioscorea japonica and Zingiber mioga. Botanical Magazine, Tokyo, 1966, p. 350-354.

Boundary

A constituent measurement is a fact about material at a stated preparation, not a statement about what that material does in a person. An adverse-effect or genotoxicity record is an observation reported in a source, most often in an animal or laboratory model. Neither is a Metatron Health conclusion about causality, human risk or benefit, and the absence of a record is not proof that a preparation is safe. Nothing here is diagnosis, prescribing or individual medical care.

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Independent literature