Oxalis tuberosa as MAOi?

[sauroman1]

There are claims that Oxalis tuberosa contains MAOi. Anybody done research with this plant?

 

[downwardsfromzero]

What is your source for this (these) claim(s)?

Do they mention the compounds responsible for the MAOI effect?

 

[sauroman1]

What is your source for this (these) claim(s)?

Do they mention the compounds responsible for the MAOI effect?

From Wikipedia: "Harmine found in root secretions of Oxalis tuberosa has been found to have insecticidal properties." Oxalis tuberosa - Wikipedia
Also there is paper about detected fluorescent beta-carbolines in Oxalis tuberosa L roots: Exudation of fluorescent beta-carbolines from Oxalis tuberosa L roots - PubMed

 

[downwardsfromzero]

That is beginning to look like something worth investigating... Beta-carbolines are pretty widespread, it seems.

Oxalis gives oxalic acid its name. Not something to ingest in quantity. Better to extract the harmine than simply throw in a brew?

One use-category, sour oca, contains cultivars with high levels of oxalic acid.[2] Farmers process these tubers to form a usable storage product, called khaya in Quechua.[12] To prepare khaya, tubers are first soaked in water for approximately one month. Then they are left outside during hot, sunny days and cold, freezing nights until they become completely dehydrated.

Sunlight degrades the oxalic acid; it probably won't do the harmine much good, either.

Anyhow, unfortunately:

This article has been retracted at the request of the Editor-in-Chief and Author. Please see Elsevier Policy on Article Withdrawal (Article withdrawal | Elsevier policy).
Reason: The authors have been unable to find written experimental data which documented the actual isolation of the purported β-carbolines (harmine and harmaline) from root exudates. The source of the compound in question as originally reported is unclear. While Oxalis tuberosa roots do release fluorescent exudates, the identity of the fluorescent compound(s) awaits actual purification and structural determination.

That doesn't necessarily mean they were wrong... Lots of compounds are fluorescent, though.