Olive oils

Chemical analyses on olives and olive-pomace oil

Chemical analyses on extra virgin olive oils, virgin olive oils, refined olive oils and olive-pomace oils

The chemical analyses of olives and olive-pomace oils represent the core business of Chemiservice Srl laboratory. It is the sector in which the company has the most significant competence and experience gained through many years of service and its specific interest in the field.
Chemiservice Srl, as chemical analysis laboratory, applies recognised official methods and in  absence of official indications, it applies methods developed and internally validated. The services offered by Chemiservice Srl on this type of products can have a variety of objectives.

Chemisevice Srl - laboratory detection objectives

  • Evaluate the oil product category based on current legislation;
  • Assess compliance with European regulations on the marketing of olives and olive-pomace (EEC Reg 2568/91 and subsequent amendments);
  • Assess compliance of the products with commercial and international standards (IOC and CODEX ALIMENTARIUS);
  • Assess compliance of the products with sale specifications, the technical specifications of the large-scale retail trade and the requirements made by non-EU countries;
  • Assess compliance of the products with the PDO / PGI production specifications as per current legislation;
  • Assess nutritional profiles and drafting of Nutritional Tables Eu. Reg.1169/2011
  • Assess the health profile also for the purpose of the specification of Nutritional Claims on the label (Polyphenols such as Hydroxytyrosol and Tyrosol, Vitamin E, Tocopherols, Saturated Fatty Acids, Omega 3, Omega 6) pursuant to EC Reg. 1924/2006 and EU Reg. 432/2012
  • Assess compliance of the products with the current food safety regulations regarding contaminants (EC Reg. 1881/2006 and subsequent amendments, EC Reg. 149/2008 and subsequent amendments, CODEX).

Main analytical testing carried out by Chemiservice

  • Free fatty acids 
  • Peroxides number
  • Spectrophotometric analysis in UV (K232, K268, delta K)
  • Alkyl esters (Ethyl and methyl esters)
  • Virgin olive oils organoleptic evaluation of virgin olive oils (PANEL TEST)
  • Fatty acids Methyl esters and fatty acids trans isomers
  • Triacylglycerols with ECN42
  • Sterols
  • Erythrodiol and uvaol
  • Alkyl esters (Ethyl and methyl esters)
  • Waxes
  • Stigmastadienes in vegetable oils
  • Aliphatic alcohols
  • 2-glyceryl monopalmitate
  • International testing method of extraneous oils
  • Acid value
  • Relative density
  • Refractive index
  • Saponification number 
  • Soap content
  • Iodine number
  • Unsaponifiable fraction
  • Para-anisidine value
  • Totox index
  • Kreis test
  • Pesticide residues detection (multiresidue and individual active ingredient)
  • Glyphosate
  • Quaternary phytosanitary products (Diquat, Paraquat, Clormequat, Mepiquat)
  • Copper chlorophyll 
  • Heavy metals
  • Solvent residues
  • Polycyclic Aromatic Hydrocarbons 
  • Plasticizer residues (phthalates)
  • Mycotoxins (Aflatoxins, Zearalenone, Ochratoxin, Deoxinvalenol, Fumonisins, Trichothecenes)
  • 2 MCPD
  • 3 MCPD
  • Glycidol
  • Mineral oils
  • MOSH and MOAH.
  • Moisture and volatile substances
  • Impurities
  • Halogenated solvents 
  • Total solvents as n-hexane 
  • Diglycerides determination 
  • Pirofeofitine
  • Cold index 
  • Tocopherols and content of Vitamin E, Vitamin A (beta-carotene), Vitamin B6, antioxidants (BHA, BHT, PG, TBHQ)
  • Rancimat (Oxidation stability index)
  • Polar compounds in frying oils
  • Minor compounds 
  • Lovibond colour
  • Cold Test
  • Total phosphorus 
  • Gossypol
  • Freezing point, smoke point, flash point, cloud point
  • Allergens 
  • GMO

Analyses on extra virgin olive oil most frequently requested by producers (mills)

  • Moisture
  • Impurities
  • Oil yield on oil olives 
  • Quality profiles of new oils
  • Product classification of produced or stored olive oils
  • Qualitative analysis of blends
  • Process contaminants analysis (mineral oils, phthalates, pesticides, heavy metals)
  • Vegetation waters analysis
  • Pomace analysis
  • Processing waste analysis
  • Organoleptic evaluation
  • Healthy profiles of oils (content in polyphenols, vitamin E, fatty acids profile)
  • Nutritional profiles

The analysis on extra virgin olive oil most frequently requested by the packers

  • Assessment of compliance with the declared product category 
  • Assessment of compliance with the technical and commercial specifications
  • Export eligibility to the USA, Canada, China, Japan, America, Australia, Brazil
  • Compliance with HACCP plans 
  • Compliance with internal and external quality management systems 
  • Testing of contaminants such as pesticides, mineral oils, heavy metals, PAHs, MCPD, Glycidol 
  • Testing of health profiles (vitamins, polyphenols, fatty acids profile)
  • Testing of nutritional profiles (drafting of nutritional table)
  • Authenticity analysis 
  • Shelf Life test
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Chemical analyses on olive and olive-pomace oils

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