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IPC

(21) (22)

Application

97108379/13, 1997-05-20

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Actual filing date

1997-05-20

(45)

Published

1998-09-20

(72)

Inventor

Ruvinskij O.E.Sharudina S.Ja.Akulinin V.E.

(73)

Holder

Kubanskij Gosudarstvennyj Tekhnologicheskij Universitet

METHOD OF DETERMINING ACID NUMBER OF VEGETABLE OILS Russian patent published in 1998 - IPC

Abstract RU 2119162 C1

FIELD: food industry. SUBSTANCE: to simplify acid number determination, reduce operation expenses, and consumption of reagent in pH-metric procedure, rectified ethanol is used as solvent. Prior to be mixed with weighed sample of oil, solvent is alkalized with lithium hydroxide to attain pH value within the range 7.5-7.8. Value of pH of oil sample-solvent mixture is then measured, mixture is supplemented with 0.1 M acetic acid in ethanol fixanal solution and measuring pH is repeated. Acid number of vegetable oil is calculated using known formula. EFFECT: simplified procedure and reduced expenses. 6 tbl

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RU 2 119 162 C1

Authors

Ruvinskij O.E.

Sharudina S.Ja.

Akulinin V.E.

Dates

1998-09-20—Published

1997-05-20—Filed

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