SU880400A1 - Method of producing barley flakes - Google Patents

Description

one

The invention relates to the milling industry and, in particular, is intended for the production of large products in the form of flakes.

A known method for the production of barley flakes involves heating boiled and dried cereals and moistening in a steamer with live steam at an overpressure (0.1 MPa) to a certain moisture content. Steamed groats are ground on a machine with smooth rollers 1.

The disadvantage of this method is that this method can be used to obtain flakes from cooked and dried cereals, in the case of preparing flakes from raw cereals, sticks to the rolls during pickling.

The closest to the proposed effect is the method of producing barley flakes, which includes peeling, grinding barley grain to produce grits, moistening, sweeping, drying and cooling the grits and smoothing them on smooth rolls. Simultaneously with the moistening, steaming of the cereals is carried out under the influence of steam for 2-4 minutes at a vapor pressure

0.12-0.15 MPa, and entrapment - for 1 h Gz.

The disadvantage of this method is that it is impossible for them to obtain a maximum yield of good quality flakes with minimum energy consumption. Steaming and short tempering can not provide uniform moistening of the core,

10 the yield of the finished product with this method is low due to the small output of cereals from barley, as well as due to the lack of plasticity of the endosperm. When plating the core of insufficient plasticity, brittle flakes are obtained, a lot of crumbs.

The purpose of the invention is to increase the yield of the finished product and improve its quality.

20

In order to achieve this goal in a known method of producing barley flakes, which provides for peeling, grinding of barley grain to produce grits, moisturizing,

25 hardening, drying and cooling the grits and its flattening on smooth rolls, the grain is additionally moistened before desquamation to 21-25%, rolled for 2-4 hours, steamed with steam at a pressure of 0.5-1.0 MPa per te30

reading 30-60 s, and dried with an air stream with a temperature of 80-90 ° C to a grain moisture of 17-20%, with the main humidification leading to 20-26% of moisture, and soaking for 2-4 hours.

Example 1. Grain barley uv-, pazhny up to, 21%, steam for 2 hours, steamed at a steam pressure of 0.5 atm for 30 s, dried in a stream of air at a moisture content of 17%, and then peeled off moistened by 3% and drained for 2 hours, they are flattened and the flakes are dried. The flake yield is about 70%.

Example 2. The grain of the catfish is moistened to 23%, volatilized for 3 hours, steamed at a vapor pressure of 1 bar for 60 seconds, dried in a stream of air at a temperature of 85 ° C to a moisture content of 18%, shelled, re-moistened with 4% , roll off for 3 hours, spin and dry the flakes. Flake yield is 72%

PRI ji me R 3. The barley grain is moistened to 25%, steamed for 4 hours and steamed at a vapor pressure of 1 atom for 60 s, dried in a stream of air at a temperature of 90 ° C to a humidity of 20%, shelled, re-moistened 6% and steam for 4 hours, flatten and dry the flakes. The yield of flakes is about 75%.

The choice of such parameters ensures the achievement of the goal, but in the case of the choice of low and high parameters, the goal is not achieved, for which the following examples are given.

Example 4. According to the proposed method, the grain is pre-moistened to 20%, drained for 1 hour, steamed at a steam pressure of 0.5 ati for 30 seconds, dried in a stream of air with a temperature of 75 ° C to a humidity of 16%, and then peeled, re-wetted by 2% and roll for 1 h, then splash and dry the flakes. The yield of the finished product is 57%, flakes have an unsatisfactory presentation.

Example 5. The barley grain is moistened to 27%, drained for 6 hours, steamed at a steam pressure of 1.5 atm for 120 s, dried in a stream of air at a temperature of 100 ° C to a moisture content of 22%, shelled, re-moistened 6%, steam for 5 hours / crush and dry the flake. The flakes have a grayish color, a slightly increased thickness, and although the yield of the semifinished product reaches at (80% of the regime), plating is difficult, the amount of waste during plunging increases.

Thus, with the modes of operation in the proposed intervals, the flake yield is 70-75%. It should also be noted that due to the high flake yield, their nutritional value is higher than pearl barley due to a higher (by 1.0-1.5%) protein content and minerals of vitamins with almost the same fiber content.

Claims (2)

1. Large concentrates that do not require boiling. Ed. S.A. Genin. M., Food Industry, 1975, p. 96-100. 2. Grain processing technology. Ed. G.A. Yegorova. M., Kolos, 197.7, p. 324-326.