# Commission Regulation (EEC) No 2568/91 of 11 July 1991 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis, Division 2: PRINCIPLE

Extent: E+W+S+N.I.

The unsaponifiable matter can be fractionated using basic thin layer chromatography (reference method), revealed and the corresponding bands scratched and extracted. As an alternative method of separation, HPLC using a silica gel column and UV detector and the different fractions collected. The aliphatic and triterpenic alcohols as well as the sterol and triterpenic dialcohols are isolated together.

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Source: https://www.legislation.gov.uk/eur/1991/2568/annex/XIX/part/2/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-1991-2568/annex-XIX/part-2/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.