CN104031176A

CN104031176A - Method for extracting fly-maggot chitin

Info

Publication number: CN104031176A
Application number: CN201410274103.7A
Authority: CN
Inventors: 闻献
Original assignee: Nanjing Mai Side Catering Management Co Ltd
Current assignee: Nanjing Mai Side Catering Management Co Ltd
Priority date: 2014-06-19
Filing date: 2014-06-19
Publication date: 2014-09-10

Abstract

The invention relates to a method for fly-maggot processing, and particularly relates to a method for extracting an industrial raw material, namely fly-maggot chitin. The method comprises the following steps of 1, killing; 2, cleaning; 3, mincing, wherein the cutting distance is 3-4 mm; 4, adding a hydrochloric acid solution, stirring, and soaking; 5, centrifugalizing at a speed of 2000 revolutions per minute, pouring out supernatant liquor, and repeating the operation centrifugation two times; 6, adding a sodium hydroxide solution, carrying out water bath treatment for 20 minutes at a temperature of 80-90 DEG C, after the obtained object is cooled, centrifugalizing the obtained object, removing supernatant liquor, and repeating the operation two times; 7, adding water for soaking, and washing; and 8, drying, and crushing. According to the method disclosed by the invention, a method implemented by cutting and crushing firstly and then extracting is adopted, so that intra-cavity materials can be removed by using a centrifugation method, and thus the residues of ash are reduced. According to the method disclosed by the invention, fly-maggot chitin is prepared by using a physical method, and the method is simple in whole process, high in extraction efficiency, less in damage on chitin, low in cost and good in effect.

Description

A kind of extracting method of fly maggot chitin

Technical field

A kind of method that the present invention relates to fly maggot processing, relates in particular to a kind of industrial raw material fly maggot chitin extracting method.

Background technology

Fly maggot chitin has very high pharmaceutical use, is also healthcare products important elements.Along with fly maggot industrialization cultivation forms gradually, a lot of producers have added the making of fly maggot product.Wherein taking albumen and chitin as main.Application number is the preparation method that 201210084977.7 patent has been announced a kind of maggot compound protein powder, adopts enzymolysis process, and cost is higher.And the method for for your chitin not extracting.

Summary of the invention

For above problem, the invention provides a kind of program simple, the extracting method of a kind of fly maggot chitin with low cost, its step method is as follows

Step 1: lethal

Step 2: clean

Step 3: chopping, cutting distance is at 3-4 millimeter.

Step 3, adds hydrochloric acid soln to stir, and soaks

Step 4: centrifugal 2000 rpms, upper strata liquid is poured out, repeats twice

Step 5: add sodium hydroxide solution, 80-90 DEG C of water-bath 20 minutes, after l is cooling, the centrifugal upper strata liquid of abandoning, repeats twice

Step 6: add water soaking, washing.

Step 7: dry, pulverize.

The extracting method of described a kind of, fly maggot chitin, the concentration of hydrochloric acid solution described in step 2 is 3mol/l.

The extracting method of described a kind of, fly maggot chitin, the naoh concentration described in step 5 is 3mol/l.

Beneficial effect: the method that the present invention adopts first cutting and crushing to extract again, can remove material in chamber by centrifuging, reduce the residual of ash content.The preparation of employing Physical, whole technique is simple, and extraction yield is high, and chitin is destroyed less, and cost is low, effective.

Embodiment

Embodiment 1

Step 1: lethal, warm water is drowned;

Step 2: clean two to three times;

Step 3: chopping, cutting distance is at 4 millimeters.

Step 3, adding concentration is that 3mol/l hydrochloric acid soln stirs, and soaks;

Step 4: centrifugal 2000 rpms, upper strata liquid is poured out, repeats twice;

Step 5: adding concentration is the sodium hydroxide solution of 3mol/l, 80 DEG C of water-baths 20 minutes, after l is cooling, the centrifugal upper strata liquid of abandoning, repeats twice;

Step 6: add water soaking, washing;

Step 7: dry, pulverize.

Embodiment 2

Step 1: lethal, warm water is drowned;

Step 2: clean two to three times;

Step 3: chopping, cutting distance is at 4 millimeters.

Step 5: adding concentration is the sodium hydroxide solution of 3mol/l, 90 DEG C of water-baths 20 minutes, after l is cooling, the centrifugal upper strata liquid of abandoning, repeats twice;

Step 6: add water soaking, washing;

Step 7: dry, pulverize.

Embodiment 3

Step 1: lethal, warm water is drowned;

Step 2: clean two to three times;

Step 3: chopping, cutting distance is at 3.5 millimeters.

Step 5: adding concentration is the sodium hydroxide solution of 3mol/l, 85 DEG C of water-baths 20 minutes, after l is cooling, the centrifugal upper strata liquid of abandoning, repeats twice;

Step 6: add water soaking, washing;

Step 7: dry, pulverize.

Claims

1. an extracting method for fly maggot chitin, is characterized in that: comprise the following steps

Step 1: lethal;

Step 2: clean;

Step 3: chopping, cutting distance is at 3-4 millimeter;

Step 3, adds hydrochloric acid soln to stir, and soaks;

Step 5: add sodium hydroxide solution, 80-90 DEG C of water-bath 20 minutes, after l is cooling, the centrifugal upper strata liquid of abandoning, repeats twice;

Step 6: add water soaking, washing;

Step 7: dry, pulverize.

2. the extracting method of a kind of fly maggot chitin according to claim 1, is characterized in that, the concentration of hydrochloric acid solution described in step 2 is 3mol/l.

3. the extracting method of a kind of fly maggot chitin according to claim 1, is characterized in that, the naoh concentration described in step 5 is 3mol/l.