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Oils

Inajá Oil

Also: Inaja oil, Inaja pulp oil, Maripa palm oil, Attalea maripa pulp oil, Maximiliana maripa mesocarp oil.

Calculate a 100 % Inajá Oil bar

The saponification value here is derived, not published. No primary document we could use gives one for Inajá Oil, so it is calculated from this record's own fatty-acid composition: chain lengths fix the molar mass, which fixes how much hydroxide a gram of fat consumes. That gives 197.9 mg KOH/g, ±3 %.

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 35 Codex oils where both fields come from the same standard, the method's median error is 0.90 % and its 90th percentile 2.74 %, with no meaningful bias. 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 valuenot published
Derived from composition197.9 ± 3 % mg KOH/g
Used by the calculator197.9 mg KOH/g (derived)
SAP for NaOH0.1411 g/g
Iodine value—
INS (SAP − IV)—
Melting point—
Unsaponifiable matter—

A bar made of 100 % Inajá Oil

Hardness 35 29–54
Cleansing 11 below 12–22
Conditioning 62 44–69
Bubbly lather 11 below 14–46
Creamy lather 24 16–48

Conventional qualities summed from the fatty-acid groups; a single-oil bar is a reference point, not a recipe.

Fatty-acid profile

Fatty acidPublished range, %Used
Lauric acid C12:0 · saturated 3.7–13 (typical 3.7) 3.7
Myristic acid C14:0 · saturated 7.6–18.7 (typical 7.6) 7.6
Palmitic acid C16:0 · saturated 18.6–20.1 (typical 20.1) 20.1
Palmitoleic acid C16:1 0.1 0.1
Stearic acid C18:0 · saturated 1.8–3.5 (typical 3.5) 3.5
Oleic acid C18:1 41.5–52.4 (typical 52.4) 52.4
Linoleic acid C18:2 5.8–8.9 (typical 8.9) 8.9
α-Linolenic acid C18:3 n-3 0.2 0.2
Arachidic acid C20:0 · saturated 3.2 3.2

Where these numbers come from

Sociedade Brasileira de Quimica (Journal of the Brazilian Chemical Society), open access via SciELO Brazil — Rodrigues AMC, Darnet S, Silva LHM. 'Fatty acid profiles and tocopherol contents of buriti (Mauritia flexuosa), patawa (Oenocarpus bataua), tucuma (Astrocaryum vulgare), mari (Poraqueiba paraensis) and inaja (Maximiliana maripa) fruits.' J. Braz. Chem. Soc. 21(10):2000-2004 (2010). · document dated 2010 · read 2026-09-24

Table 1 (oil content) and Table 2 (fatty acids, inaja column read from word coordinates).

PlantFAdb (Michigan State University), based on the Seed Oil Fatty Acids (SOFA) database of the Max Rubner-Institut — PlantFAdb datasets for Maximiliana maripa (plant 11851) · read 2026-09-24

Dataset #14302, pulp oil (SOFA TAB_014600).

Embrapa Roraima (Empresa Brasileira de Pesquisa Agropecuaria), repository Infoteca-e — Comunicado Tecnico 129: 'O Inaja (Maximiliana maripa (Aubl.) Drude) como fonte alimentar e oleaginosa.' Boa Vista: Embrapa Roraima, 2011. · document dated 2011 · read 2026-09-24

Tabela 3 (omega-6 and omega-9 content of inaja oil); corroboration only.

THIS IS THE PULP (MESOCARP) OIL. The kernel of the same fruit gives a lauric fat, the only inaja ingredient CosIng lists (Attalea Maripa Seed Butter); it is a separate record, inaja-kernel-oil. Typical values are Rodrigues, Darnet & Silva 2010 (J. Braz. Chem. Soc. 21(10):2000-2004), fruits from Para, pulp oil 35.52 % of fresh pulp; Table 2, inaja column (the PDF shifts the inaja and mari columns, so they were re-read from word coordinates; the values sum to 99.7): C12:0 3.70, C14:0 7.60, C15:0 ND, C16:0 20.10, C16:1 0.10, C17:0 ND, C18:0 3.50, C18:1 52.40, C18:2 8.90, C18:3 0.20, C20:0 3.20, C22:0 ND; the text gives inaja MUFA 52.5 and PUFA 9.1 g/100 g, which these values reproduce. Ranges add Bereau et al. via PlantFAdb ('Maximiliana maripa Drude mesocarp and kernel oils: fatty acid and total tocopherol compositions', 2001; SOFA TAB_014600; French Guiana), pulp oil: C12:0 13.0, C14:0 18.7, C16:1 0.0, C16:0 18.6, C18:3 0.0, C18:2 5.8, C18:1 41.5, C18:0 1.8 (99.4 %). Unusually for a pulp oil, it carries lauric and myristic acid (11-32 % together in these two analyses), so it lathers somewhat more than an olive-type oil. Embrapa Roraima's Comunicado Tecnico 129 (2011) quotes omega-6 8.3164 % and omega-9 53.8635 % for inaja oil (from Damasceno et al. 2009), consistent with the Para analysis; it gives no full profile. No saponification or iodine value was found in an allowed document; the build derives the value from this profile (it implies about 198 mg KOH/g). Which part of the fruit a product labelled 'inaja oil' comes from is not always stated - check the supplier's specification before using this record.

This record is part of the open ingredient database (ODbL). Found an error or a better primary source? The dataset is on GitHub; corrections with a document link are welcome.