Crocin Standardization & Grades
Crocins are the pigments of saffron. They are esters of the carotenoid crocetin with the sugars gentiobiose and glucose, and unlike most carotenoids they dissolve in water, which gives saffron its orange-red color. They are the standardization target because they define the color strength and because HPLC can quantify them as a group. Saffron also holds picrocrocin, which gives the bitter taste, and safranal, the volatile that forms from picrocrocin during drying and carries the aroma. The botanical entity is Crocus sativus L., and the part used is the stigma.
| Grade | Assay & Method | Where It Fits |
|---|---|---|
| 3% Crocins | HPLC | Drink powders and blended premixes |
| 10% Crocins | HPLC | Capsules and tablets with small fill |
The two grades differ in concentration and in the material around the pigment. The 10% grade is a pigment concentrate that reaches a target dose from a small fill. The 3% grade keeps more of the sugars, picrocrocin and other solids of the stigma, so saffron extract at this level has a rounder flavor and suits drink powders and blends. The stigma is also supplied as a 10:1 ratio extract, the Saffron Extract Powder, as a milled stigma, the Saffron Powder, and as the aglycone Crocetin. Each flower yields only three stigmas, which is why saffron is a costly raw material and why identity matters. The plant is a sterile triploid that is propagated by dividing corms, so there is no seed-grown variation, and the quality of a lot depends on the picking, drying and extraction steps rather than on cultivar.












