Spice Sourcing for Oleoresin Extractors: a guide

Feedstock, not culinary grade

An oleoresin extractor does not buy for the kitchen, it buys for yield and downstream specification. The questions are the concentration of the target constituent, the colour value, the cleanliness for extraction and the moisture profile. A chilli bought for its ASTA colour and capsaicin as extraction feedstock is a different purchase from the same chilli sold for cooking.

Spice oils and oleoresins are a large Indian export category, around 12 percent of the export basket by value in FY2025-26, so the feedstock supply base is deep and specialised.

Chilli feedstock: colour versus heat

For paprika and capsicum oleoresin, colour is the prize. Byadgi chilli carries a high ASTA colour of 130 to 150 with modest heat (8,000 to 15,000 SHU), which makes it a colour extraction favourite. Where capsaicin is the target, hotter varieties such as Teja S17 are used; its ASTA runs 110 to 130, though widely quoted heat figures for Teja are not verified and should be treated with caution.

Turmeric and other oleoresin inputs

For curcumin oleoresin, curcumin content is the yield driver: Alleppey-type finger at 4 to 6 percent sits above Erode (2.5 to 3 percent) and Nizamabad bulb (1.5 to 2.25 percent). Pepper for oleoresin is bought on piperine and oil content. In each case the feedstock is specified on the constituent that survives into the extract, not on culinary appearance.

Cleanliness carries into the extract

Contaminants concentrate in extraction. Pesticides, aflatoxins and heavy metals in the raw spice can carry into or concentrate in the oleoresin, so feedstock cleanliness is a downstream-quality decision, not just a raw-material one. Screen feedstock lots accordingly and match them to the specification your customers hold for the finished extract.

How YouPals helps

YouPals is a sourcing desk and owns no extraction facility. We do not extract, refine or standardise anything. We source spice feedstock to your extraction brief: the right chilli for colour or capsaicin, turmeric on curcumin content, pepper on piperine, from CRES-registered exporters, and coordinate pesticide, aflatoxin and heavy-metal testing at accredited third parties so the raw material fits your yield and downstream-spec targets.

Frequently asked

Which Indian chilli is best for colour oleoresin?

Byadgi. It carries a high ASTA colour of 130 to 150 with modest heat (8,000 to 15,000 SHU), which is exactly the profile a paprika or capsicum colour extractor wants. Hotter Teja S17 is used when capsaicin is the target.

Why does feedstock cleanliness matter more for extraction?

Because contaminants can concentrate in the extract. Pesticides, aflatoxins and heavy metals present in the raw spice may carry into or intensify in the oleoresin, so raw-material screening is a downstream-quality decision.