Curcumin Phospholipid Complex

A curcumin phospholipid complex is a delivery-form ingredient, not a higher-strength extract, and it should be bought on that understanding. Turmeric extract from Curcuma longa L. is co-processed with a phosphatidylcholine-rich lecithin so that the curcuminoids associate with the polar head groups of the phospholipid, and the resulting complex is dried onto microcrystalline cellulose. The finished powder assays 18–22% total curcuminoids by HPLC — typically 20% — with the curcuminoids and the phospholipid held at a nominal 1:2 ratio by weight and the cellulose making up the balance. The curcuminoid fraction itself is the usual three-compound family: curcumin (CAS 458-37-7, C21H20O6, MW 368.38), demethoxycurcumin and bisdemethoxycurcumin. A buyer comparing this against a 95% curcuminoid extract on assay alone is comparing the wrong number; the point of the article is the physical form, and the dose in a finished capsule is set accordingly. The lecithin source is the single most important commercial decision on this record, and it is an allergen decision rather than a technical one. Thovek's standard grade uses sunflower lecithin, which carries no Annex II allergen and lets a brand print a clean soy-free declaration. Soya lecithin is available on request and is materially cheaper, but soya lecithin is not covered by the Annex II exemptions in EU Regulation 1169/2011 — unlike fully refined soybean oil and fat — so any grade built on it must be declared as containing soya, on the ingredient list and on the label. No egg-derived phospholipid is used in any grade, and no bovine, porcine or marine material enters the process, so all grades are vegan and vegetarian. The material is an orange-yellow to brownish-yellow free-flowing powder that disperses in warm water to a colloidal suspension rather than forming a true solution. It carries a substantial phospholipid load, which makes it noticeably softer and more hygroscopic than a dry 95% extract and means it needs a sealed liner and dry storage; blenders should also allow for it in tablet compression work. All three constituents are established food materials — curcumin as E100, lecithin as E322 and microcrystalline cellulose as E460(i) — and the JECFA and EFSA acceptable daily intake for curcumin of 0–3 mg/kg body weight per day is the figure to work back from when sizing a serving. Like all curcumin articles it is light- and alkali-sensitive and should be held below 25 °C away from direct light.