CN1129527A

CN1129527A - High protein saccharified feeds and preparation thereof

Info

Publication number: CN1129527A
Application number: CN95118343A
Authority: CN
Inventors: 张禄; 王清
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-17
Filing date: 1995-11-17
Publication date: 1996-08-28
Anticipated expiration: 2015-11-17
Also published as: CN1052860C

Abstract

The high-protein saccharified feed is made from of plant stalk or stem through crushing, hydrolysis, saccharification, mirobe fermentation and drying. It may be used alone or by mixing with other raw materials as required.

Description

A kind of high-protein sacchariferous feed and manufacture method thereof

The invention belongs to the animal feed that extracts from vegetable material, feed that particularly from stalk, extracts and extracting method thereof.

Present existing feed is that the primary raw material cooperation forms with corn, wheat bran, sweet potato, soya-bean cake, the dregs of fat and fishbone dust class and traditional grain crop still.These feeds not only cost an arm and a leg, and consume a large amount of grains.Especially these feeds are many is primary raw material with stiff five cereals, needs by the digestive system in the body it to be transformed and can absorb after the domestic animal feed, thereby causes very big waste.China is a populous nation, have a large population and a few land, in recent years along with the continuous development of building of the four modernizations, though grain is self-supporting substantially, but taking out greatly, grain is used for aquaculture production, still some deficiency is also at present striven ground in order to solve people and animals, people and animals strive this contradiction of grain, and the feed of seeking to develop novel and economically valuable has become the important topic that current aquaculture whether can high speed development.

The purpose of this invention is to provide a kind of high-protein sacchariferous feed and manufacture method thereof, utilize the straw of crops to form through microbial fermentation, this feed cost is low, raw material sources are wide, nutritious, be suitable for the nursing of various domestic animals, the development aquaculture is had very big practical value, can alleviate people and animals again simultaneously and strive this contradiction of grain.

The present invention is achieved in that the discarded stalk (as cornstalk, corncob, straw, straw, cotton seed hulls etc.) that utilizes crops is through pulverizing, sieve and utilize behind the hydrolysis and saccharification in addition again the fermentating breeding of microorganism, after making the rich nutrient substances such as carbohydrate, protein and amino acid that wherein obtain capacity, a kind of biochemical feed that dehydration, drying are made.This high-protein sacchariferous feed, be to utilize cellulose, hemicellulose in the plant refuse behind hydrolysis and saccharification, its whole hydrolysate to be passed through the fermentating breeding of microorganism, dehydrate then and form, both kept the nutrient composition in original plant, again by biochemical process, cellulose etc. is converted into the nutriment of sugar, protein, amino acids.The shape of this feed can be a flour, also can be coarse particulate material at random, also can make effigurate particulate material by mechanical pelleting.This feed can also add other an amount of nutriment as the masterbatch in the feed, forms the mixed fodder that is fit to various domestic animals.

The manufacture method of high-protein sacchariferous feed of the present invention comprises the steps:

A, will be after straw drying, pulverizing, the filtration the powder of moisture content≤15%, impure amount≤15%;

B, with the dilute sulfuric acid of gained powder in the steps A and 0.2～6% concentration, with 1: 2.5～5 solid-to-liquid ratio puddle the back under 100 °～180 ℃ temperature hydrolysis 4～180 minutes hydrolysate;

C, with step B gained hydrolysate through centrifugal action, the solid, liquid attitude is separated, with the liquid after separating with milk of lime or lime neutralization, filter then, with the gained clarified solution with centrifugal after the solid matter that separates puddle, regulate pH value again, thing is puddled in hydrolysis;

D, puddle the calcium superphosphate leachate puddled again in the thing into 1%, 2% urea or ammonium sulfate, 5% corn flour in the hydrolysis of step C gained, inserting the active dry yeasr bacterial classification then ferments, fermentation time is 24～48 hours, can get moisture high-protein sacchariferous feed;

E, with the moisture high-protein sacchariferous feed of step D gained through dehydration, promptly get high-protein sacchariferous feed after the drying.

Fermentation temperature preferably is controlled at 30 ℃～35 ℃ in step D, and fermentation time is 30 hours.

In step C with in milk of lime or the lime and the pH value of isolated liquid be 7～8, the pH value after clarified solution and solid matter are puddled is 6～7.5.

Solid-to-liquid ratio can be 1: 3 in step B, and temperature can be 100 ℃～120 ℃, and dilute sulfuric acid concentration can be 0.4～3%, and hydrolysis time can be 120 minutes.

Advantage of the present invention and good effect are as follows:

1, solves realistic problems such as feed source, market is in short supply, valency height.

2, make full use of plant or waste crop materials, the manufacturing concentrated feed of turning waste into wealth.

3, can save food in a large number.

4, can improve the utilization of the many nutritions in the feed and domestic animal absorptivity to feed.

5, can reduce feed price significantly, promote the fast development of aquaculture with this.

Accompanying drawing is a process chart of the present invention.

Below in conjunction with accompanying drawing in detail enforcement of the present invention is described in detail.

Embodiment one:

1, sieves with the straw pulverizing of drying and with 20 mesh sieves earlier; 2, be 1.5% standby with Dilution of sulphuric acid to concentration; 3, get 1 part in straw powder (weight), 3 parts of dilute sulfuric acids; 4, above two kinds of materials are placed acidproof pot stir, hydrolysis tripped out after 120 minutes under 120 ℃ of temperature, made solid-state, liquid in the hydrolysate divide example with centrifuge; 5, with Ca (OH) ₂Neutralizing hydrolysis liquid is treated to filter clarification behind pH value=8; 6, the clarified solution after the solid matter after will separating and the neutralization is puddled, PH=7 after puddling, and adding 2%H urea, 1% calcium superphosphate leachate, 5% corn flour adds 4% active dry yeasr bacterial classification again, fully mixes thoroughly to be placed in the container, in temperature is 30～35 ℃ condition bottom fermentation 30 hours, trips out then to regulate to dehydrate after the mouthfeel with sodium carbonate, food flavor to be finished product feedstuff.

Embodiment two:

1, the cornstalk of drying is pulverized, and sieved with 20 mesh sieves; 2～5 operation is with embodiment one; 6, the clarified solution after the solid matter after will separating and the neutralization is puddled, solid-to-liquid ratio is 1: 0.5 and adds 2% urea, 1% calcium superphosphate leachate, 1% corn flour, the hydrolysis of going into for another example after 20～30% the fermentation is puddled the thing fresh material, 1% active dry yeasr bacterial classification, fully mix thoroughly and be placed in the container, in temperature is 30～35 ℃ condition bottom fermentation 24 hours, trips out then, regulates to dehydrate through the high temperature granulation after the mouthfeel being the pellet finished product with sodium carbonate, food flavor.

Embodiment three:

1, sieves with the reed stalk pulverizing of drying and with 20 mesh sieves; 2～5 operations are with embodiment one; 6, the clarification leaf after the solid matter after will separating and the neutralization is puddled, pH value after puddling=6～7.5 o'clock also add 2% urea, 1% wheat bran, 3% corn flour, the thing fresh material is puddled in the hydrolysis that adds again after 40% the fermentation, fully mix thoroughly and be placed in the container, in temperature is that 30～35 ℃ condition bottom fermentation tripped out in 48 hours then, with dehydration after sodium carbonate and the food flavor adjusting mouthfeel, drying, add 10% dregs of beans, 0.1% salt, 5% rapeseed dregs again, 5% cottonseed cake is puddled to be and is mixed the concentrated feed finished product.

Claims

1, a kind of high-protein sacchariferous feed is characterized in that straw utilized microbial fermentation again behind hydrolysis and saccharification and the biochemical feed made.

2, a kind of manufacture method of high-protein sacchariferous feed is characterized in that comprising the steps:

3, manufacture method as claimed in claim 2 is characterized in that fermentation temperature preferably is controlled at 30 ℃～35 ℃ in step D, and fermentation time is 30 hours.

4, manufacture method as claimed in claim 2, it is characterized in that in step C with in milk of lime or the lime and the pH value of isolated liquid be 7～8, the pH value after clarified solution and solid matter are puddled is 6～7.5.

5, manufacture method as claimed in claim 2 is characterized in that solid-to-liquid ratio can be 1: 3 in step B, and temperature can be 100 ℃～120 ℃, and dilute sulfuric acid concentration can be 0.4～3%, and hydrolysis time can be 120 minutes.