Valeurs publiées
| Indice de saponification | 187.8 mg KOH/g |
| Utilisé par le calculateur | 187.8 mg KOH/g (typique) |
| Indice pour le NaOH | 0.1339 g/g |
| Indice d’iode | 104.7 g I₂/100 g |
| INS (SAP − indice d’iode) | 83 |
| Point de fusion | — |
| Matière insaponifiable | — |
Un savon fait à 100 % de huile de cameline
Qualités conventionnelles additionnées à partir des groupes d’acides gras ; un savon à une seule huile est un repère, pas une recette.
Profil d’acides gras
| Acide gras | Plage publiée, % | Utilisé | |
|---|---|---|---|
| Acide myristique | C14:0 · saturés | 0.04–0.06 (typ. 0.05) | 0.1 |
| Acide palmitique | C16:0 · saturés | 5.35–6.43 (typ. 6.43) | 6.4 |
| Acide palmitoléique | C16:1 | 0.09–0.11 (typ. 0.1) | 0.1 |
| Acide stéarique | C18:0 · saturés | 2.48–2.76 (typ. 2.57) | 2.6 |
| Acide oléique | C18:1 | 13.4–17.4 (typ. 17.4) | 17.4 |
| Acide linoléique | C18:2 | 13.5–16.9 (typ. 16.9) | 16.9 |
| Acide α-linolénique | C18:3 n-3 | 34.9–39.7 (typ. 35.2) | 35.2 |
| Acide arachidique | C20:0 · saturés | 1.18–1.43 (typ. 1.24) | 1.2 |
| Acide gadoléique | C20:1 | 14.9–16.12 (typ. 14.9) | 14.9 |
| Acide érucique | C22:1 | 1.62–3.18 (typ. 1.62) | 1.6 |
D’où viennent ces nombres
Les notes sourcées ci-dessous, ainsi que les titres des documents qu’elles citent, sont conservées dans leur langue d’origine. Une référence traduite ne peut plus être retrouvée, et un résumé technique traduit n’est plus le résumé qui a été vérifié par rapport au document.
Table 2 physical and chemical characteristics (free fatty acid content, iodine value, saponification number, density at five temperatures, refractive index); Table 3 fatty acid content, 'this study' column plus Budin, Eidhin and Zubr comparison columns. Publisher's own PDF.
Table 4 fatty-acid composition of two Serbian cultivars by two extraction methods; Table 5 tocopherols (gamma-tocopherol 184-547 mg/kg). Its Table 1 'saponification number' column (28-59 mg KOH/g) is not usable and is not transcribed here.
Saponification value 187.8 +/- 0.1 mg KOH/g and iodine value 104.7 +/- 0.3 g I2/100 g are Table 2 of Abramovic & Abram, Food Technology and Biotechnology 43(1):63-70 (2005), measured by AOAC 920.160 and 920.185 on a single pressed oil from Camelina sativa grown near Prevalje, Slovenia, 2002 (same table: free fatty acids 2.35 %, density 0.9207 g/cm3 at 20 C, refractive index 1.4756 at 25 C). The 'typical' fatty acids are that paper's Table 3 'this study' column: palmitic 6.43, stearic 2.57, oleic 17.40, linoleic 16.90, alpha-linolenic 35.20, arachidic 1.24, gondoic (C20:1) 14.90, eicosadienoic (C20:2) 2.12, eicosatrienoic (C20:3) 1.61, erucic 1.62 - ten acids totalling 99.99 %. The printed table interleaves four source columns and the PDF extraction scrambles the rows, so the assignment was pinned against the paper's own stated totals (10.3 % saturated, 55.8 % polyunsaturated, 16.9 % linoleic, 35.2 % alpha-linolenic, 14.9 % gondoic, 1.6 % erucic); all six agree exactly. C20:2 and C20:3 have no key in this schema, which is why the profile here sums to 96.4 % rather than 100 - the missing 3.7 % is those two acids, not an omission. Min/max additionally span Foods 13(22):3605 (2024) Table 4, two Serbian cultivars (NS Zlatka, NS Slatka) cold-pressed and hexane-extracted: C16:0 5.35-5.75, C18:0 2.48-2.76, C18:1 13.40-13.94, C18:2 15.83-16.72, C18:3n3 36.68-39.25, C20:0 1.18-1.43, C20:1 15.17-16.12, C22:1 2.91-3.18, C14:0 0.04-0.06, C16:1 0.09-0.11; and the five-cultivar ranges from Zubr quoted in the FTB text (alpha-linolenic 34.9-39.7, oleic 14.0-16.9, linoleic 13.5-16.5, gondoic 15.1-15.8, erucic 2.6-3.0). The Foods 2024 paper also prints a 'saponification number' of 28.06-58.90 mg KOH/g, which is impossible for a triglyceride oil and roughly a quarter of every other published figure, so it is disregarded; that paper measured no iodine value. WHAT MATTERS FOR SOAP: camelina is the odd one among the high-linolenic oils. At 35-40 % alpha-linolenic it should be as fragile as linseed, yet it is not - its Rancimat induction period sits between rapeseed and linseed, and the FTB authors attribute that to roughly 800-1500 mg/kg of natural tocopherols (mostly gamma) plus the unusual 15 % of gondoic acid (C20:1), a long monounsaturated chain that most seed oils do not carry at all. The measured iodine value, 104.7, is barely half perilla's and close to soybean's, because a third of the oil is monounsaturated C18:1/C20:1 rather than polyunsaturated. Expect a soft bar with better keeping than the linolenic figure alone would suggest, but still treat it as a minority oil. Erucic acid is present at 1.6-3.2 %, below the 5 % food limit and irrelevant for soap, but it is why the long-chain end of the profile drags the saponification value down. The published 187.8 agrees with the 188.8 implied by the recorded profile to within 0.5 %. Unsaponifiable matter and melting point were not measured in either paper (null). INCI not verified on CosIng in this session, left null.
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