*7.2.3 Phytoecdysteroids*

They are a broad group of plant steroids where their structure is characterized by having a 5 β-cholestanol steroid skeleton that contains a 6-ketone ring B and a hydroxyl group at the C-14 α position. On the other hand, the study of phytoecdysteroids in quinoa and few investigations have been reported, such as the investigation of Chilean quinoa varieties and commercial samples of quinoa, where the total content of phytoecdysteroids was in the range of 224 and 570 μgg<sup>1</sup> fw in Chilean samples, and in commercial samples it presented 138 and 568 μgg<sup>1</sup> f [46].

Additionally, they were also carried out in 15 varieties of quinoa grains in Peru, department of Puno, for the content of phenolic compounds where they obtained a variation of 35.29–139.94 mg gallic acid per 100 grams [47] (**Table 7**).

In relation to other bioactive compounds in quinoa seed ecotypes, the content of deidzaine isoflavones was found in a range of 0.7–1.15 mg per 100 grams and 0.05–0.25 mg of genistein per 100 grams. On the other hand, a carotenoid content in the range of 1.69–3.88 mg per kilogram has also been recorded [48].


#### **Table 7.**

*The flavonoids and phenolic acids identified in quinoa seeds.*

*Nutritional Value, Methods for Extraction and Bioactive Compounds of Quinoa DOI: http://dx.doi.org/10.5772/intechopen.101891*
