Sea Buckthorn Seed Oil
INCI Hippophae Rhamnoides Seed Oil. CAS 225234-03-7, as CosIng gives it. Also: Hippophae rhamnoides seed oil, Seabuckthorn seed oil, Sea-buckthorn kernel oil.
Calculate a 100 % Sea Buckthorn Seed Oil bar
That is stoichiometry on a measured composition rather than a guess, and it is about as well determined as a published figure: checked against the 36 Codex oils where both fields come from the same standard, the method's median error is 0.84 % and its 90th percentile 2.44 %, and it runs slightly high, by 0.55 % on average. The formula page shows the working. If you have a certificate of analysis for your lot, enter its measured value in the calculator and this estimate is set aside.
Published values
| Saponification value | not published |
| Derived from composition | 193.4 ± 3 % mg KOH/g |
| Used by the calculator | 193.4 mg KOH/g (derived) |
| SAP for NaOH | 0.1379 g/g |
| Iodine value | — |
| INS (SAP − IV) | — |
| Melting point | — |
| Unsaponifiable matter | — |
A bar made of 100 % Sea Buckthorn Seed Oil
Conventional qualities summed from the fatty-acid groups; a single-oil bar is a reference point, not a recipe.
How much lye
| Oil | NaOH | KOH |
|---|---|---|
| 500 g | 65.5 g | 91.9 g |
| 1 kg | 131.0 g | 183.8 g |
| 1 lb (454 g) | 59.4 g | 83.4 g |
| 2 lb (907 g) | 118.8 g | 166.7 g |
For this oil alone at 5 % superfat, with pure sodium hydroxide (NaOH) or pure potassium hydroxide (KOH); in brackets, across the published range of its saponification value. KOH is usually sold at 90 %: divide by 0.9. For a whole recipe, open the calculator.
Fatty-acid profile
Saturated : unsaturated 11 : 89
| Fatty acid | Published range, % | Used | |
|---|---|---|---|
| Palmitic acid | C16:0 · saturated | 7 | 7.0 |
| Palmitoleic acid | C16:1 | ≤ 4 | 4.0 |
| Stearic acid | C18:0 · saturated | ≤ 4 | 4.0 |
| Oleic acid | C18:1 | 17–20 | 18.5 |
| Linoleic acid | C18:2 | 33–36 | 34.5 |
| α-Linolenic acid | C18:3 n-3 | 30–36 | 33.0 |
Where these numbers come from
Figure 1A and accompanying text: fatty-acid composition of mature seed oil across four cultivars.
SEED oil (not the palmitoleic-rich pulp oil; see sea-buckthorn-pulp-oil). Fatty acids are from the open-access PLoS ONE 2012 study of Canadian-grown Hippophae rhamnoides ssp. mongolica (cultivars RC-4, E6590, Harvest Moon, FR-14), Figure 1A, mature seed, % w/w across cultivars: linoleic 33-36, alpha-linolenic 30-36, 18:1 (oleic delta-9 plus vaccenic delta-11 combined) 17-20, palmitic about 7, palmitoleic under 4, stearic under 4. The 'oleic' entry therefore includes cis-vaccenic acid, and the palmitic value is an approximate figure read from the paper's text/figure, not a tabulated mean. Saponification value, iodine value and unsaponifiable matter are NULL: no open-access primary document with measured values for the SEED oil could be opened in this session (the Pure and Applied Biology paper is behind a bot-check, the OCL/ScienceDirect/Wiley-JAOCS papers returned HTTP 403 or are paywalled, and conference-proceedings and reseller specification sheets are outside the allowed source list). Do not reuse the pulp-oil SAP/IV for the seed oil: the seed oil is a linoleic/alpha-linolenic oil and would be expected to have a much higher iodine value than the pulp oil. Melting point not given (liquid oil). INCI name from CosIng.
This record is part of the open ingredient database (ODbL), which you can download as CSV or JSON. Found an error or a better primary source? Corrections with a link to the document are welcome at support@soapformulator.com.