Olio di camelina
Nome INCI: Camelina Sativa Seed Oil. Anche: Olio di dorella.
Valori pubblicati
| Indice di saponificazione | 187,8 mg KOH/g |
| Usato dal calcolatore | 187,8 mg KOH/g (tipico) |
| SAP per NaOH | 0,1339 g/g |
| Numero di iodio | 104,7 g I₂/100 g |
| INS (SAP − numero di iodio) | 83 |
| Punto di fusione | — |
| Sostanze insaponificabili | — |
Una saponetta 100 % olio di camelina
Qualità convenzionali sommate a partire dai gruppi di acidi grassi; una saponetta di un solo olio è un punto di riferimento, non una ricetta.
Profilo degli acidi grassi
| Acido grasso | Intervallo pubblicato, % | Usato | |
|---|---|---|---|
| Acido miristico | C14:0 · saturi | 0,04–0,06 (tipico 0,05) | 0,1 |
| Acido palmitico | C16:0 · saturi | 5,35–6,43 (tipico 6,43) | 6,4 |
| Acido palmitoleico | C16:1 | 0,09–0,11 (tipico 0,1) | 0,1 |
| Acido stearico | C18:0 · saturi | 2,48–2,76 (tipico 2,57) | 2,6 |
| Acido oleico | C18:1 | 13,4–17,4 (tipico 17,4) | 17,4 |
| Acido linoleico | C18:2 | 13,5–16,9 (tipico 16,9) | 16,9 |
| Acido α-linolenico | C18:3 n-3 | 34,9–39,7 (tipico 35,2) | 35,2 |
| Acido arachidico | C20:0 · saturi | 1,18–1,43 (tipico 1,24) | 1,2 |
| Acido gadoleico | C20:1 | 14,9–16,12 (tipico 14,9) | 14,9 |
| Acido erucico | C22:1 | 1,62–3,18 (tipico 1,62) | 1,6 |
Da dove vengono questi numeri
Le note con fonte qui sotto, e i titoli dei documenti che citano, restano nella lingua originale. Una citazione tradotta non si può rintracciare, e un riassunto tecnico tradotto non è più il riassunto che è stato verificato sul documento.
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.
Questa scheda fa parte della database aperto degli ingredienti (ODbL). Hai trovato un errore o una fonte primaria migliore? Il dataset è su GitHub; le correzioni con il link a un documento sono benvenute.