Method for producing collagen, glutin or collagen by degreasing and deliming of fish scale
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A collagen and gelatin protein technology, applied in the field of freshwater fish processing, can solve the problems of high consumption, long time consumption, environmental pollution, etc., and achieve the effect of short production cycle and little environmental pollution
Inactive Publication Date: 2009-04-08
WUHAN POLYTECHNIC UNIVERSITY
View PDF1 Cites 28 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The deashing and degreasing methods in the prior art need to consume a large amount of acid and alkali, increase production costs, cause environmental pollution, and take a long time
For example (Wang Caili, Fish scale glue making and its comprehensive utilization, Qilu Fishery, 2002, 19(3): 40-41) soak it in hydrochloric acid for 2-3 weeks, take it out and wash it, and then lime it (2-4g / L lime milk ) for 15 to 20 days, the improved technology (Hao Jiaxi, etc., Chinese patent ZL200510044916.8, a fish scale collagen production process), although the production cycle has been shortened, the hydrochloric acid consumption is still very large, and 0.55 tons to 0.90 tons of hydrochloric acid, a large amount of waste hydrochloric acid is discharged into the water body, causing pollution to the environment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0017] a. Cleaning fish scales: Use non-polluting grass carp scales and wash them with hot water at 40℃~50℃ to remove the sticky substance and other impurities on the surface of the fish scales;
[0018] b. Degreasing: Take 100kg of clean fish scales and add it to the reactor, then add 600kg of 1% NaOH hot alkaline water, stir and soak for 2 hours at 40℃~50℃, filter, rinse with 40℃~50℃ hot water To pH close to 7;
[0019] c. Drying: Dry the defatted fish scales with hot air at 55°C for 12 hours to obtain dried fish scales. The tested moisture content is 14%, and it is stored for later use;
[0020] d. Deashing: Take 50kg of fish scales into the reactor, add 300kg of water, then add 1kg of concentrated hydrochloric acid dropwise, heat and cook for 10 hours at a pressure of 0.1Mpa, take it out, filter, and rinse with water until the pH is close to 7.
[0021] Enzymatic hydrolysis to prepare collagen: Take 100g of delimed fish scales, add 800g of water, add 0.1g of protease, and keep...
Embodiment 2
[0025] a. Cleaning fish scales: Use non-polluting grass carp scales and wash them with hot water at 40℃~50℃ to remove the sticky substance and other impurities on the surface of the fish scales;
[0026] b. Degreasing: Take 100kg of clean fish scales and add it to the reactor, then add 500kg of 5% sodium carbonate hot alkaline water, stir and soak for 2 hours at 40℃~50℃, filter, and use 40℃~50℃ hot water Rinse until the pH is close to 7;
[0027] c. Drying: Dry the defatted fish scales with hot air at 55°C for 12 hours to obtain dried fish scales. The tested moisture content is 14%, and it is stored for later use;
[0028] d. Deashing: Take 50kg of fish scales into the reactor, add 250kg of water, and then add dropwise 2kg of concentrated hydrochloric acid, heat and cook for 5 hours at a pressure of 0.14Mpa, take it out, filter, and rinse with water until the pH is close to 7.
[0029] Enzymatic hydrolysis to prepare collagen: Take 100g of de-ashed fish scales, add 1000g of water,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention provides a method for defatting and deashing fish scales for preparing collagen or gelatin or collagen protein. The technical key points are as follows: the pollution-free high-quality fish scales are taken as raw materials, hot water of 40-50 DEG C is used for cleaning, the surface viscous substances and other impurities of the fish scales are removed; then 5-6 times of the weight of the fish scales of 1 percent-3 percent of NaOH hot alkaline solution (or 2 percent-5 percent of sodium carbonate hot alkaline solution) is used for stirring and soaking for 2-3 hours at 40 DEG C-50 DEG C, the filtration is carried out, the hot water of 40 DEG C-50 DEG C is further used for flushing, lipid substances are removed, the drying is carried out till the water content is less than 15 percent for storage and standby; after that, 5-6 times of the weight of the fish scales of water is added in a reaction kettle, 1 percent-2 percent of the weight of the fish scales of concentrated hydrochloric acid is added, the heating and cooking are carried out for 5-10 hours under the pressure of 0.1MPa-0.14MPa till the fish scales are softened to be transparent, and the filtration and the water flushing are finally carried out; the method has the advantages that the method can reduce the using amount of acid and alkali, shorten the production cycle, reduce the emission of wastes to the environment and improve the utilization rate of the fish scales. The method is an environment-friendly and resource-saving production technology.
Description
Technical field [0001] The invention belongs to the technical field of freshwater fish processing, and specifically is a degreasing and deliming method for extracting collagen from fish scales. Background technique [0002] As the prior art, the skin and bones of cows and pigs are commonly used as raw materials to process collagen and gelatin. However, due to the trend of global economic integration, mad cow disease (BSE) and foot-and-mouth disease are spreading around the world. The safety of gelatin or collagen processed from mammal bones and skins has been seriously challenged, especially as medicine, edible gelatin or The safety of collagen is even more worrying. The technology of using fish scales as raw materials to prepare safer gelatin or collagen has attracted great attention all over the world. [0003] Fish scales contain about 40% of protein, about 50% of calcium phosphate is the main ash and a small amount of fat. The presence of fat and ash makes the transparency of...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more