SU1242176A1 - Method of obtaining seselozid - Google Patents

Description

 I 1

The invention relates to the chemical and pharmaceutical industry and relates to methods for producing biologically active substances from plant raw materials.

The purpose of the invention is to simplify the method by reducing the number of technological operations and increasing the yield of the target product.

The method is carried out as follows.

The roots of the plant's ditch are extracted twice with water when heated, followed by the addition of acetone to the filtered extract, which leads to crystallization of the target product.

EXAMPLE 1. 1 kg of air-dried, shredded roots were extracted twice with water in a water bath at a ratio of raw material and water of 1: 2 for 2 h each time. The obtained extracts are combined, filtered from mechanical impurities. Acetone in a 1: 2 ratio of extract to acetone was added to the filtered extract and left to stand.

2A21762

losing crystals of the desired product. Crisis process ends after two days. The precipitated crystals are filtered off and

5 dried. The yield of the desired product is 5.0 g / kg.

Example 2. 1 kg of air-dried, shredded roots of a female horric egg were extracted twice.

water in a water bath in the ratio of raw materials and water 1: 1.7 for 2 h each time. The resulting extracts are combined, filtered from mechanical impurities. Subsequent processing is carried out

15 as described in Example 1. The yield of the desired product is 5.0 g / kg.

Example 3. 1 kg of air-crushed ground roots of a sunflower gribress were extracted twice

20 water in a water bath in the ratio of raw materials and water: 1: 1.5 for 2 h each time. The resulting extracts are combined, filtered from mechanical impurities. Subsequent processing is carried out

25 as described in Example 1. The yield of the desired product is 5.0 g / kg. The yield of the target product according to a known method is t, 5-2 g / kg.

Compiled by E. Zorin Editor N Bobkov Tehred O. Gortvay Proofreader and Erdeyi

Order 3639/9 Circulation 660 Subscription

VNIIL of the USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, d. A / 5

Production and printing company, Uzhgorod, st. Design, And

Claims (1)

METHOD FOR PRODUCING SESELOSID by extracting the roots of the gorinichka plant (Seseli peucedanoides) with a solvent and precipitating ceseloside with acetone, characterized in that, in order to simplify the method and increase the yield of the target product, water is used as a solvent in the ratio of raw material and solvent 1: 1.5 - 1: 2, extraction is carried out by heating in a water bath for 2 hours and precipitation with acetone is carried out in a ratio of extract and acetone of 1: 2.