SU1454860A1 - Method of producing protein hydrolysate - Google Patents

Abstract

The invention relates to the leather industry, in particular to a method for producing a protein hydrolyzate, and improves the quality of the hydrolyzate by increasing its solubility, wetting ability and proteolytic activity. The boiler with hot steam supply and steam jacket is loaded with leather production (chrome chips, chrome trim) with a humidity of 50% and filled with soap production in an amount of 100-150% by weight of leather waste, containing, by weight,%: sodium mixture of limit mixture and unsaturated fatty acids of fraction C, -Cj, 15-30, sodium hydroxide 2-4, water the rest. The mixture is heated before and hydrolysis of the leather industry is carried out for 6-10 hours. Table 1. i cl

Description

one

The invention relates to leather production, in particular, to the technology of processing tanned wastes, such as chrome chips,. trimming, etc., resulting in products that are used for skin treatment.

The purpose of the invention is to improve the quality of the hydrolyzate due to the increase in its solubility, wetting ability and proteolytic activity.

The essence of the invention is that as a hydrolysing reagent, waste of boiled production is used in the amount of 100-150% by weight of leather waste, containing, iac,%:

ten

 15

ten

15

Sodium myasia mixture of saturated and unsaturated fatty acids fraction C, d C2s (soap C / (COONa)

15-30

2-4 Else

Sodium hydroxide

Water

The method is carried out as follows.

Waste of tanning production is treated with live steam in the presence of 100-150% of waste of soap production at 95-100 s for 6-10 hours.

Example 1. A boiler with a steam supply and a steam jacket is loaded with leather tanning waste (chrome chips, chrome trimming) in an amount of 1 ton.

SL

four

CX)

about:

waste is 50%. Then, trimming and trimming pour waste soap production with the content, wt.%:

Hzroksid sodium 2 Soaps C / o -C (, COONa 15 WaterErest

The waste consumption of soap production is 150% of the mass of leather waste. The mixture is heated to 100 seconds and hydrolysis of the leather industry is carried out for 10 hours. The finished product is drained.

ten

Due to the large range of precursors, which are completely transformed into a water-soluble state during the preparation of the hydrolyzate, the proposed method provides protein hydrolyzate with a wide range of properties for various purposes - increasing skin strength, thickening the facial layer of the skin, changing the elastic properties of the skin. The dyphilic nature of the proposed hydrolyzate has a positive effect on the preservation of the main valuable example. Method 2 - skin quality - hygienic - and sung as in example I, only the waste of soap production has the composition, in May.%:

Sodium hydroxide 3

Soaps With to, -Cz COONa25

WaterEverything

The consumption is 125% by weight of leather waste. The hydrolysis time is 8 h.

Example 3. The method is carried out as in Example 1, only the waste of soap production has a composition, wt.%:

Sodium hydroxide .. 4 Soaps C, o -C oCO ONa 30 WaterEverything Else

Consumption is 100% of the mass of leather waste. Hydrolysis time 6h.,

As a result, hydrolyzate was obtained, which has the indicators given in the table.

As can be seen from the data table, the proposed gvdrolizat has no sediment.

promotes an increase in water resistance and a reduction in the water resistance of the skin. The ability to bind with hides, hides and leather reduces skin stifling.

The proposed hydrolyzate possesses simultaneously simultaneous, enzymatic, filling, and surface-active properties.

Claims (1)

The invention The method of obtaining protein hydrolyzate, by heat treatment of tanned leather tanning waste in the presence of a hydrolyzing reagent, characterized in that, in order to improve the quality of the hydrolyzate by increasing its solubility, wetting t (- nosti and proteolytic activity, as a hydrolyzing reagent use waste of soap production in an amount of 100-150% of the mass of leather waste of the following completely dissolved in water, 40% by weight, wt.%: their capacity is higher than that of the prototype, as evidenced by the increase in the wetting angle and surface tension, in addition, the hydrolyzate has proteolytic activity. Sodium soaps of a mixture of saturated and unsaturated fatty acids in the Xu 1o fraction of sodium hydroxide Water 15-30 2-4 Else Due to the large range of precursors, which are completely transformed into a water-soluble state during the preparation of the hydrolyzate, the proposed method provides protein hydrolyzate with a wide range of properties for various purposes - increasing skin strength, thickening the facial layer of the skin, changing the elastic properties of the skin. The diphilic character of the proposed hydrolyzate has a positive effect on the preservation of the basic valuable quality of the skin — hygiene — and contributes to an increase in water resistance and a decrease in the water impermeability of the skin. The ability to bind with leather raw materials, leather semi-finished products and leather reduces stifling of leather. The proposed hydrolyzate has simultaneously duplicating, enzymatic, filling, and surface active properties. The method of obtaining a protein hydrolyzate by thermally treating tanned leather tanning waste in the presence of a hydrolyzing reagent, characterized in that in order to improve the quality of the hydrolyzate by increasing its solubility, wetting ability and proteolytic activity, a hydrolyzing reagent is used waste soap production in. the amount of 100-150% by weight of leather waste of the following suck, wt.%: Sodium Soap Blend Limit and Unsaturated Fatty Acids Fraction Xu 1o Sodium Hydroxide Water