JPS6083542A - Preparation of feather meal - Google Patents

Abstract

PURPOSE:To obtain high-quality feather meal efficiently, by putting feathers in a closed cooker, heating it, hydrolyzing it, adding an animal or vegetable oil at normal temperature to the cooker, reducing the pressure, dehydrating and drying them simultaneously. CONSTITUTION:Feathers are fed to a closed cooker, steam is sent by pressure to the jacket part of the cooker, the feathers are steamed and boiled, water in the feathers are evaporated as steam, and the feathers are hydrolyzed by the steam. In this state, an animal or vegetable oil at normal temperature is fed to the cooker, dispersed in a misty state, the high-temperature steam in the cooker is cooled, condensed, liquefied, and the pressure in the cooler is reduced. The oil heated by heat exchange with the steam is simultaneously penetrated into the feather tissue, and replaced with remaining water in the feather tissue, water release action occurs so that the feathers are dried, to give the desired feather meal.

Description

[Detailed description of the invention] The present invention relates to a method for producing feather meal.

Conventionally, feather meal is produced by heating bird feathers under pressure in a couture car and hydrolyzing them to make them more digestible. Alternatively, the raw material must be dried under reduced pressure in a dryer, and this drying process takes a long time and is inefficient.

In Jin's invention, after the feathers are subjected to pressure and heat treatment in a shoemaker for hydrolysis treatment, oil at room temperature is injected into the shoemaker until that time, and this injected oil reduces the pressure and heats up the shoemaker. By exchanging internal heat with oil, feathers hydrolyzed by heated oil can be dehydrated and dried.

It is an object of the present invention to provide a method for producing feather meal that can efficiently produce feather meal.

To explain this invention in detail, first, feathers are put into a closed courier, steam is forced into the jacket of the couture, the feathers in the couture are steamed, and the feathers are steamed.
The moisture inside is generated as steam and is hydrolyzed.

Next, when animal/vegetable oil at room temperature is poured into the kutka while the kernels are still in the kernel state, the oil spreads in the kutka in the form of mist, and the high-temperature steam in the kutka is condensed and liquefied by this room temperature oil. , becomes a drain, and the pressure in the tanker is greatly reduced. Normally, the inside of the cutter during hydrolysis treatment is 2
Since the pressure is ~3 kg, oil at room temperature is injected at a pressure of about 5 kg.

At the same time as the pressure in the cutter returns to normal pressure with room temperature oil,
The heat of the steam is exchanged with the oil at room temperature, so the oil has a temperature of 46
It is heated to ao℃~1201:3 and becomes heated oil.
This heating oil penetrates into each tissue of the raw material feather, and becomes the inside of the feather tissue.

This replaces residual water, causing syneresis and blocking the infiltration of water from the outside, resulting in a phenomenon similar to that occurring when feathers are dehydrated at oil temperature.

Therefore, the feathers after the hydrolysis treatment can be dried in a short time.

According to this invention, the hydrolyzed feather fa-a is depressurized in the container by injecting room-temperature oil, and then subjected to dehydration and drying treatment, thereby efficiently converting the hydrolyzed feather fa-a into It has the effect that post-processing can be performed with the same shoeing force, and compared to drying as a conventional post-processing, dehydration and drying can be performed without denaturing the feather tissue, and the quality of the feather meal is also improved. This has the effect of allowing you to obtain high quality products.

Patent applicant Shuzo Nakazono Agent Mr. Matsuo

Claims (1)

[Claims] 1) After storing the feathers in a sealed couture car, heat-treating them, and subjecting them to hydrolysis treatment, in that state, room temperature dynamic/molecular oil is poured into the couture car, and the inside of the couture car is depressurized with this oil. A method for producing feather meal characterized in that a dehydration and drying process of 7-eath can also be carried out.