Olio di semi di lampone

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The 'typical' fatty acids are Table 2 of Bederska-Lojewska et al. 2021 (Molecules 26(24):7446, open access), raspberry seed recovered from juice pomace (Hortex, Skrzynsko, Poland, 2020) and extracted with ethanol under low-temperature sonication: palmitic 2.31, stearic 0.76, oleic 10.99, linoleic 52.59, arachidic 0.26, alpha-linolenic 31.10 %, total 98.01 %. Myristic, palmitoleic, C18:3 n-6, C20:1, C22:1 and C20:4 n-6 were all reported as zero in that oil. Table 1 of the same paper: 16.20 % oil in dry seed, acid value 4.14 mg KOH/g, peroxide value 8.45 meq O2/kg. Min/max additionally span Oomah et al. 2000 (Food Chemistry 69(2):187-193; palmitic 2.7, oleic 12.0, linoleic 54.5, alpha-linolenic 29.1 %) and Ispiryan et al. 2023 (Plants 12(14):2706, cv. 'Polka', hexane / cold press / supercritical CO2 / subcritical CO2; palmitic 1.8-2.1, oleic 10.2-10.6, linoleic 44.0-44.8, alpha-linolenic 37.2-38.1 %). Note how far the linoleic-to-linolenic split moves between studies - 54.5/29.1 in the Canadian material, about 44/38 in the Lithuanian 'Polka' - while the sum of the two stays near 83 %. A maker judging rancidity risk should treat the pair as one very unsaturated block rather than trust either figure to a decimal. SAPONIFICATION: the only measured value in an allowed primary document is Oomah et al. 2000, saponification number 191 mg KOH/g, on an oil of 10.7 % seed yield with peroxide value 8.25 meq/kg and 2.7 % free fatty acids. Only that paper's abstract is readable (Elsevier paywall); it was read through the Europe PMC bibliographic record cited below and it prints no iodine value. The min 175 is the lower bound of the cold-pressed raspberry-oil row in the systematic review of Dash et al. 2026 (Front. Nutr., Table 1: SV 175-190 mg KOH/g, IV 150-180 g I2/100 g, unsaponifiable 1.0-3.0 % w/w, specific gravity 0.920-0.935, FFA 0.8-3.0 %, PV < 10 meq O2/kg). Those are compiled review figures, not measurements, and they are quoted here only because iodineValue and unsaponifiablePercent have no measured source at all in the documents opened - both fields carry that review band and nothing else. For orientation, the recorded composition implies an iodine value near 181 by the usual per-acid factors, at the very top of the review's band, and a saponification value near 192 by stoichiometry, within 1 % of Oomah's measured 191. Ispiryan et al. measured refractive index 1.4829-1.4835 and density 0.9258-0.9366 g/cm3 at 20 C but no saponification or iodine value; the review of red raspberry seed oil in Plants 10(5):944 (2021) prints neither, only acid values of 17.18-18.74 mg KOH/g attributed to Oomah 2000 and Dimic 2012. Melting point not reported (liquid oil). INCI not verified against CosIng in this session, so 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.