Unilever Patent Holdings B.v.

Internationale Octrooi Maatschappij 'octropa' Bv

Lipton, Division of Conopco, Inc.

Internationale Octrooi Maatschappij 'octropa' P.b.v.

Keshab L Ganguli

Karel Petrus Van Putte

Cornelis M Lok

Peter Nootenboom

Hessel Turksma

Johannes C Oudejans

Jan Van Buuren

Karel Petrus Agnes Maria Van Putte

Vangelis Stavridis

Cornelis K Lok

Cornelis Winkel

George C Michaelides

Anton Reid Van Immerseel

Anton R Van Immerseel

Cornelis Hofman

Cornelis M Lox

A method has been found for the manufacture of a spread which is characterized by the presence of a substantial amount of olive oil polyphenols and the absence of olive oil odour. The deodorized olive oil to be used for the preparation is obtained by a mild refining process which spares the olive oil's minor components.

Olive oil containing food composition

Refining of vegetable oil

An olive oil flavor is imparted to a bland triglyceride oil by conducting an inert gas through olive oil, the flavor donating oil, and subsequently through a preferably cooler receptor triglyceride oil in which the olive oil flavor substance is absorbed. In order to prevent off-flavor formation the temperature of the donor oil is restricted to 0.degree.-65.degree. C.

Flavoring food compositions

Olive oil with a high polyphenols content and a low bitterness is obtained by exposing olive oil to an emulsified water phase which exhibits enzymatic debittering activity and/or by emulsifying with a water phase with a high polyphenols content and evaporating the water phase.

Debittering of olive oil

Flavoring of edible oils

The invention provides a nickel/alumina catalyst, with an atomic ratio of nickel/aluminium between 10 and 2, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step a soluble aluminium compound. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina catalyst, its preparation and use

The invention provides a nickel/alumina/silicate catalyst, with an atomic ratio of nickel/aluminium between 20 and 2, a nickel/silicate ratio between 20 and 1, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4 and the nickel/silicate ratio between 12 and 3. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step a soluble aluminium compound and optionally the silicate. The silicate is preferably added during a second ageing step. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina/silicate catalyst, its preparation and use

A nickel/alumina catalyst, with an atomic ratio of nickel/aluminum between 10 and 2, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the catalyst has a specific porous structure and the nickel/aluminum atomic ratio is between 10 and 4. A method is also disclosed for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step, a soluble aluminum compound. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina catalyst and process for its preparation

The invention provides a nickel/alumina/silicate catalyst, with an atomic ratio of nickel/aluminium between 20 and 2, a nickel/silicate ratio between 20 and 1, an active nickel surface area between 70 and 150 m.sup.2 /g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4 and the nickel/silicate ratio between 12 and 3. Preferably the catalyst has a specific porous structure. The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called aging step a soluble aluminium compound and optionally the silicate. The silicate is preferably added during a second aging step. The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.

Nickel/alumina/silicate catalyst, its preparation

The invention provides a process for the preparation of a transition metal-silicate catalyst in which an insoluble, basic compound of a transition metal having an atomic number between 26 and 30 (in particular nickel which has an atomic number of 28) is rapidly precipitated with an alkaline precipitation agent from an aqueous solution of such a metal salt, as a suspension, which precipitate is allowed to mature for a longer period in a suspended form, and, after the transition metal ions have been practically completely precipitated, soluble silicate is added to the suspension, after which the solids are separated from the liquid, optionally washed, dried and reduced.

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Bleiswijk, Netherlands

Keshab L Ganguli