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2 008 014

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C1

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IPC

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Application

5020065/14, 1991-12-29

(22)

Actual filing date

1991-12-29

(45)

Published

1994-02-28

(72)

Inventor

Glyzin V.I.Tolstykh L.P.Davydova V.N.Azarkova A.F.Gaevskij A.V.Vandyshev V.V.Tregubov V.M.Majatskaja T.V.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Institut Lekarstvennykh Rastenij"

PROCESS FOR PREPARATION OF BIOLOGICALLY ACTIVE AGENT FROM POT MARIGOLD (CALENDULA OFFICINALIS) RAW MATERIAL FOR COSMETICS Russian patent published in 1994 - IPC

Abstract RU 2008014 C1

FIELD: pharmaceutic-chemical industry. SUBSTANCE: marigold top raw material is extracted in a 24-26 % alcoholic solution, raw-extractant ratio of 1: (10-12), at 50-60 C for 1.5-2 hrs. The resulting supernatant is decanted, and the residue is extracted and decanted again. The combined extractive layers are filtered, the filtrate is evaporated and dried to give the end product. The evaporation of filtrate is carried outto solid residue content of 115-20 % . The end product is dried at air temperature 160-140 C at inlet and 80-75 C at outlet and air mixture flow rate being 2-2.5 l/h. EFFECT: increased efficiency. 2 cl

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RU 2 008 014 C1

Authors

Glyzin V.I.

Tolstykh L.P.

Davydova V.N.

Azarkova A.F.

Gaevskij A.V.

Vandyshev V.V.

Tregubov V.M.

Majatskaja T.V.

Dates

1994-02-28—Published

1991-12-29—Filed

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