ANALYSIS OF OILS AND FATS
Oils and fats can be classified into:
- Refined or raw seed oils such as soybean oil, sunflower oil, high oleic sunflower, safflower, cotton, corn germ, rape, peanut, and grapeseed oil.
- Vegetable oils such as coconut oil, palm fat, rice oil, sesame oil, avocado oil, sweet almonds oil, argan oil, borrage, wheat germ, cod liver, jojoba oil, linseed oil, cocoa butter, evening primrose oil, castor oil, rosehip oil, mink oil, etc.
- Essential oils such as lavender, rosemary, etc.
- Fried oils and fats, and/or for de biodiesel industry.
- Animal fats such as lard.
In the following list, you will be able to see the physico-chemical analysis that we offer:
QUALITY PHYSICOCHEMICAL ANALYSIS IN OILS AND FATS
| ACIDITY (% Oleic Acid) | Volumetry |
| ACID VALUE (mg KOH/g Sample) | Volumetry |
| PEROXIDE VALUE (meq of O2/Kg oil) | Volumetry |
| MOISTURE AND VOLATILE MATTER | Gravimetry |
| MOISTURE KARL-FISCHER | Karl-Fischer |
| INSOLUBLE IMPURITIES IN PETROLEUM ETHER | Gravimetry |
| INSOLUBLE IMPURITIES IN ACETONE | Gravimetry |
| ALKYL ESTERS (FAMEs+FAEEs) | GC |
| RANCIMAT STABILITY (Oxidative Stability) | Rancimat |
| COLOUR (Scales: Lovibond, CieLab, Gardner, Saybolt,…) | Spectrophotometry |
| ORGANOLEPTIC OPINION | – |
| TOCOPHEROL (VITAMIN E) | HPLC-Fluorescence |
| TOTAL POLAR COMPOUNDS | Gravimetry |
| SOLID FAT CONTENT (SFC) | RMN |
| ANISIDINE INDEX | Spectrophotometry |
PURITY PHYSICOCHEMICAL ANALYSIS IN OILS AND FATS
| WAXES | GC |
| TOTAL STEROL CONTENT | GC |
| STEROL COMPOSITION | GC |
| ERYTHRODIOL AND UVAOL CONTENT | GC |
| STEROID HYDROCARBONS | GC |
| FATTY ACID COMPOSITION | GC |
| TRANS FATTY ACID CONTENT | GC |
| 2-GLYCERYL MONOPALMITATE | GC |
| FATTY ACIDS IN THE 2-POSITION OF THE TRIGLYCERIDES | GC |
| UNSAPONIFIABLE MATTER | Gravimetry |
| IODINE INDEX | Volumetry |
| SAPONIFICATION INDEX | Volumetry |
| REFRACTIVE INDEX | Refractometry |
| HYDROXIL INDEX | Volumetry |
| RELATIVE DENSITY | Picnometry |
| VISCOSITY | Brookfield |
| SQUALENE | GC |
| SOAP in refined oils (Qualitative analysis) | Colorimetry |
| MONO-, DI-, TRIGLYCERIDE | GC |
| MELTING POINT | Open capillary tube |
| DROP POINT | Drop point apparatus |
| SMOKE POINT | Temperature ºC |
| COLD TEST | Positive/Negative |
| CHROMATOGRAPHIC PROFILE in essential oils | GC |
| ORYZANOL | Spectrophotometry UV |
CONTAMINANTS IN OILS AND FATS
| HEAVY METALS | ICP-MS |
| MULTIRESIDUE ANALYSIS (PESTICIDES) | GC -MS |
| HALOGENATED SOLVENTS | GC -ECD |
| MINERAL OIL SATURATED HYDROCARBONS (MOSH, mineral oil) | GC |
| AFLATOXINS | Elisa |
| PHTHALATES | GC -MS |
| POLYCYCLIC AROMATIC HYDROCARBONS (PAH) | HPLC – FLD |
| CHLOROPHYL-Cu CONTENT | HPLC-DAD |
| MICROBIOLOGICAL ANALYSIS | Microbiology |
| 3-MCPD/2-MCPD/GE | GC -MS |
| ORGANIC VOLATILE COMPOUNDS | GC -MS |
| DIOXINS AND PCB’s | GC -MS |
ANTIOXIDANTS IN OILS AND FATS
| TBHQ (Tert-butyl-hydroquinone) | HPLC-DAD |
| BHA (Butylhydroxianysole) | HPLC-DAD |
| BHT (Butylhydroxytoluene) | HPLC-DAD |
| PA (Ascorbyl Palmitate) | HPLC-DAD |
| PG (Propyl Galate) | HPLC-DAD |
ANTIFOAMING AGENT IN OILS AND FATS
| E900 (Polydimethylsiloxanes PDMS) | NMR |
ELABORATION OF SCIENTIFICO-TECHNICAL REPORTS, TECHNICAL SPECIFICATIONS, ETC.
PHYSICOCHEMICAL ANALYSIS IN BIODIESEL (14214)
| ACID VALUE (mg KOH/ g sample) | EN 14104 |
| RANCIMAT STABILITY | EN 14112 |
| ESTER CONTENT | EN 14103 |
| LINOLENIC ACID CONTENT | EN 14103 |
| WATER CONTENT | EN 12937 |
| IMPURITIES CONTENT | EN 12662 |
| MONOGLYCERIDE CONTENT | EN 14105 |
| DIGLYCERIDE CONTENT | EN 14105 |
| TRIGLYCERIDE CONTENT | EN 14105 |
| FREE GLYCERIN CONTENT | EN 14105 |
| TOTAL GLYCERIN CONTENT | EN 14105 |
PHYSICOCHEMICAL ANALYSIS IN OIL FOR BIODIESEL PRODUCTION
| ACIDITY (% Oleic Acid) | Volumetry |
| MOISTURE AND VOLATILE MATTER | Gravimetry |
| INSOLUBLE IMPURITIES IN PETROLEUM ETHER | Gravimetry |
| FATTY ACID PROFILE (FAP) | GC |
| POLAR COMPOUNDS | Gravimetry |
| WAXES | GC |
| UNSAPONIFIABLE MATTER | Gravimetry |
| MONO-, DI-, TRIGLYCERIDE, GLYCERIN | GC |
| ALKYL ESTERS | GC |