CN105104921A - Fishy smell removing method for hydrolyzed fish protein - Google Patents
Fishy smell removing method for hydrolyzed fish protein Download PDFInfo
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- CN105104921A CN105104921A CN201510482614.2A CN201510482614A CN105104921A CN 105104921 A CN105104921 A CN 105104921A CN 201510482614 A CN201510482614 A CN 201510482614A CN 105104921 A CN105104921 A CN 105104921A
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Abstract
The invention discloses a fishy smell removing method for hydrolyzed fish protein. The method comprises the steps of hydrolyzed fish protein sterilizing, photocatalytic fishy smell removing agent preparing, photocatalytic fishy smell removing and the like. According to the fishy smell removing method for the hydrolyzed fish protein, the fishy smell in the hydrolyzed fish protein is removed in the mode that a zeolite-loaded photocatalyst is adopted to prepare a photocatalytic fishy smell removing agent, zeolite has the stronger adsorption effect on non-polar substances such as fishy smell substances, the photocatalyst on the zeolite can generate active oxygen free radicals with dissolved oxygen under light to oxidize the adsorbed fishy smell substances, and therefore the purpose of removing the fishy smell is achieved. According to the hydrolyzed fish protein processed through the fishy smell removing method, the fishy smell substances are removed thoroughly, the effect is good, and substances harmful to the human body and environment cannot be generated in the fishy smell substance removing process.
Description
Technical field
The present invention relates to aquatic products processing field, especially relate to the method that the molten slurry of a kind of fish takes off raw meat.
Background technology
The molten slurry of fish is the squeezing waste water produced in fish meal production process, and the annual production of domestic fish meal all more than 300,000 tons, and often produces 1 ton of fish meal, just produces the molten pulp waste of 2-3 ton fish.Containing abundant high-quality protein in the molten slurry of fish, containing albumen 6%, Pepsin digestibility is greater than 95%, and soluble protein accounts for 70%, is a kind of quality raw materials preparing albumen powder.But the molten slurry of untreated fish has dense bad smell, if do not carry out raw meat deodorizing process, be difficult to carry out further deep processing process, even if carry out the quality that deep processing also can affect obtained deep processed product greatly reluctantly.
Chinese patent publication No. CN104222968A, date of publication on December 24th, 2014, discloses a kind of technique utilizing fish molten slurry production food grade tasty agents, wherein refer to the technique of the molten slurry of a kind of fish except raw meat.First the method for charcoal absorption is used in the method, fishy smell material in the molten slurry of absorption fish, basic except smelling removal material, and then by the method that emulsifying embeds, the mixture embedding fishy smell material be made into maltodextrin, converted starch and water carries out secondary except raw meat.Although have employed secondary in this invention except the fishy smell in the molten slurry of technical method solution fish of raw meat, first removing in raw meat utilizes charcoal absorption fishy smell material, but fishy smell material can only be basic removal as described in this patent, single-activity carbon adsorbent except raw meat poor effect; Secondary removes raw meat except carrying out high-pressure homogeneous emulsification embedding with the mixture of maltodextrin, converted starch and water in raw meat, but this kind of embedding removes raw meat method removes fishy smell material just by the embedding of fishy smell material, makes fishy smell material be scattered and lost out.Therefore this kind of molten slurry of fish goes the method for raw meat, is difficult to remove fishy smell material completely, cannot accomplish completely except the effect of raw meat.
Summary of the invention
The present invention in order to overcome the molten slurry of existing fish except above-mentioned deficiency existing in raw meat technique, provide a kind of except raw meat effective, the molten slurry fishy-removing-method of safe and harmless fish.
For achieving the above object, the present invention is by the following technical solutions:
(1) fish molten slurry sterilization: molten for fish slurry to be placed under ultraviolet environments sterilization processing 30 ~ 40 minutes.The molten slurry of fish says the squeezing waste water produced after fish meal processing, and unavoidable containing some harmful microorganisms, ultraviolet-sterilization is a kind of effective sterilization technology, effectively can kill the harmful microorganism in the molten slurry of fish at short notice.
(2) photocatalysis fishy-smell removing agent preparation: described photocatalysis fishy-smell removing agent preparation comprises the following steps:
(1) fishy-smell removing agent raw material prepares: by following mass percent preparation fishy-smell removing agent: titania powder 20 ~ 30%, zeolite powder 70 ~ 80%.Titanium dioxide is a kind of technology maturation and has the novel photocatalyst of greater catalytic performance, it can under the effect of sunshine particularly sunshine middle-ultraviolet lamp, produce light induced electron or photohole, light induced electron or photohole react with the dissolved oxygen in water or water again, form active oxygen radical.Active oxygen radical can with organic fishy smell material generation redox reaction of sulfur-bearing in the molten slurry of fish, fishy smell substance oxidation can be become the material of harmless free from extraneous odour, thus the fishy smell in the molten slurry of removing fish, optically catalytic TiO 2 takes off in raw meat process not produce has hazardous substance to human body, safe and efficient.
(2) preparation of fishy-smell removing agent: the water adding material powder quality 2 ~ 4 times after being mixed by fishy-smell removing agent raw material, after stirring, ultrasonic disperse 40 ~ 50 minutes, carries out drying and crushing by compound after having disperseed, and gained mixed-powder is crossed 100 ~ 150 mesh sieves.Using ultrasound dispersion technology in water, fishy-smell removing agent raw material fully can be mixed and titania powder is adsorbed on zeolite by the adsorption capacity utilizing zeolite superpower, thus to make with zeolite adsorbents be the composite titanium dioxide photocatalyst of carrier, the fishy-smell removing agent namely described in the present invention.
(3) photocatalysis takes off raw meat: be that 1:10 ~ 15 take fishy-smell removing agent by fishy-smell removing agent and the molten slurry mass ratio of fish, the specification of fishy-smell removing agent by 1 ~ 5 gram every bag is loaded in filter bag, the filtering mesh bag that fishy-smell removing agent is housed is put into the molten slurry of fish stir process 1 ~ 3 hour under artificial light source illumination.Load in filtering mesh bag by fishy-smell removing agent by the mode of a small amount of many parts, problem fishy-smell removing agent both can having been avoided directly to load in the molten slurry of fish cause the later stage to be difficult to remove, can disperse again fishy-smell removing agent to make deodorization effect better as far as possible.In de-raw meat process, illumination is the necessary requirement that fishy-smell removing agent carries out that photocatalysis takes off raw meat.
(4) except raw meat agent is separated: the filter bag that fishy-smell removing agent is housed is taken out, just can obtain the molten slurry of fish after de-raw meat.
As preferably, it is high-pressure sodium lamp light source or xenon source that photocatalysis takes off raw meat artificial light source used.Artificial light source mesohigh mercury lamp light source can simulate ultraviolet lighting, optically catalytic TiO 2 mainly uses the light of ultraviolet light wave band to carry out light-catalyzed reaction, direct applying ultraviolet light can strengthen catalytic effect, xenon source can effectively simulated solar illumination, and the ultraviolet in solar irradiation also can in propelling light-catalyzed reaction.
As preferably, zeolite is chabasie or type A zeolite.Chabasie and type A zeolite have larger inner ratio surface area, and its inner ratio surface area reaches 750m respectively
2/ g and 1000m
2/ g, huge specific area is the basis that chabasie and type A zeolite have efficient adsorption, and the absorption property that zeolite is higher can adsorb the organic fishy smell material in the molten slurry of fish
As preferably, the aperture 0.2 ~ 0.3mm of filtering mesh bag.Filtering mesh bag pore size control can effectively prevent fishy-smell removing agent in filtering mesh bag from spilling in mesh bag in the scope of 0.2 ~ 0.3mm, also can ensure that fishy smell material in the molten slurry of fish can be removed via photocatalysis by zeolite adsorption by mesh bag.
As preferably, titania powder is nm-class rutile-type or anatase titanium dioxide.Titanium dioxide is divided into rutile-type, Detitanium-ore-type and brookite type three kinds of crystal formations, wherein rutile-type and anatase titanium dioxide photocatalysis effect better, select these two kinds of crystal form titanium dioxide to be conducive to ensureing effectively the carrying out of photocatalytic process.
Therefore, the present invention has following beneficial effect:
(1) it is good that the fishy smell material in the molten slurry of fish removes thorough effect;
(2) can not produce the material to human body and bad environmental in fishy smell devolatilization process in the molten slurry of fish;
(3) fishy-smell removing agent can conveniently be separated after defishying, and can thoroughly be separated, and does not have residual fishy-smell removing agent.
Detailed description of the invention
Below by specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
(1) fish molten slurry sterilization: molten for fish slurry to be placed under ultraviolet environments sterilization processing 30 minutes;
(2) photocatalysis fishy-smell removing agent preparation: described photocatalysis fishy-smell removing agent preparation comprises the following steps:
(1) fishy-smell removing agent raw material prepares: by following mass percent preparation fishy-smell removing agent: nanometre-grade titanic-schorl type titanium dioxide powder 20%, chabasie powder 80%;
(2) preparation of fishy-smell removing agent: the water adding material powder quality 2 times after being mixed by fishy-smell removing agent raw material, after stirring, ultrasonic disperse 40 minutes, carries out drying and crushing by compound after having disperseed, and gained mixed-powder is crossed 100 mesh sieves;
(3) photocatalysis takes off raw meat: be that 1:10 takes fishy-smell removing agent by fishy-smell removing agent and the molten slurry mass ratio of fish, by fishy-smell removing agent by the specification loading filter bag of 1 ~ 5 gram every bag, the aperture 0.2mm of filtering mesh bag, the filtering mesh bag that fishy-smell removing agent is housed is put into the molten slurry of fish high-pressure sodium lamp light source light according under stir process 1 hour;
(4) except raw meat agent is separated: the filter bag that fishy-smell removing agent is housed is taken out, just can obtain the molten slurry of fish after de-raw meat.
Embodiment 2
(1) fish molten slurry sterilization: molten for fish slurry to be placed under ultraviolet environments sterilization processing 35 minutes;
(2) photocatalysis fishy-smell removing agent preparation: described photocatalysis fishy-smell removing agent preparation comprises the following steps:
(1) fishy-smell removing agent raw material prepares: by following mass percent preparation fishy-smell removing agent: nano-sized anatase type titania powder 25%, type A zeolite powder 75%;
(2) preparation of fishy-smell removing agent: the water adding material powder quality 3 times after being mixed by fishy-smell removing agent raw material, after stirring, ultrasonic disperse 45 minutes, carries out drying and crushing by compound after having disperseed, and gained mixed-powder is crossed 120 mesh sieves;
(3) photocatalysis takes off raw meat: be that 1:13 takes fishy-smell removing agent by fishy-smell removing agent and the molten slurry mass ratio of fish, by fishy-smell removing agent by the specification loading filter bag of 3 grams every bag, the aperture 0.25mm of filtering mesh bag, puts into the molten slurry of fish stir process 2 hours under high xenon source illumination by the filtering mesh bag that fishy-smell removing agent is housed;
(4) except raw meat agent is separated: the filter bag that fishy-smell removing agent is housed is taken out, just can obtain the molten slurry of fish after de-raw meat.
Embodiment 3
(1) fish molten slurry sterilization: molten for fish slurry to be placed under ultraviolet environments sterilization processing 40 minutes;
(2) photocatalysis fishy-smell removing agent preparation: described photocatalysis fishy-smell removing agent preparation comprises the following steps:
(1) fishy-smell removing agent raw material prepares: by following mass percent preparation fishy-smell removing agent: nanometre-grade titanic-schorl type titanium dioxide powder 30%, type A zeolite powder 70%;
(2) preparation of fishy-smell removing agent: the water adding material powder quality 4 times after being mixed by fishy-smell removing agent raw material, after stirring, ultrasonic disperse 50 minutes, carries out drying and crushing by compound after having disperseed, and gained mixed-powder is crossed 150 mesh sieves;
(3) photocatalysis takes off raw meat: be that 1:15 takes fishy-smell removing agent by fishy-smell removing agent and the molten slurry mass ratio of fish, by fishy-smell removing agent by the specification loading filter bag of 5 grams every bag, the aperture 0.3mm of filtering mesh bag, the filtering mesh bag that fishy-smell removing agent is housed is put into the molten slurry of fish high-pressure sodium lamp light source light according under stir process 3 hours;
(4) except raw meat agent is separated: the filter bag that fishy-smell removing agent is housed is taken out, just can obtain the molten slurry of fish after de-raw meat.
Following technical indicator can be realized by the present invention:
1. pass through the molten slurry of fish after handled by the present invention not containing poisonous and hazardous material;
2. pass through the fish molten slurry smell after handled by the present invention pure and fresh, without fishy smell and peculiar smell.
In the present invention, deodorization effect is passed judgment on by the method for subjective appreciation.Concrete evaluation mark sheet is in table 1.
Table 1
| Fishlike smell | Score value |
| Complete in fishy smell | 0 |
| Substantially without fishy smell | 1 |
| There is slight fishy smell | 2 |
| There is obvious fishy smell | 3 |
| Heavier fishy smell | 4 |
| Extremely heavy fishy smell | 5 |
After taking off raw meat according to table 1 to gained in each embodiment, the fishy smell of the molten slurry of fish carries out sensory judgments.And with the scoring of the molten slurry of raw material fish without any defishying for 5, the scoring of fresh air be 1 standard do the judge of sense organ.Through passing judgment on, embodiment 1 is 2 with the sensory evaluation scores of the obtained de-molten slurry of raw meat fish of embodiment 2, and the sensory evaluation scores of the molten slurry of de-raw meat fish obtained by embodiment 3 is 1.
Claims (5)
1. the molten slurry of fish takes off a method for raw meat, it is characterized in that comprising the following steps:
(1) fish molten slurry sterilization: molten for fish slurry to be placed under ultraviolet environments sterilization processing 30 ~ 40 minutes;
(2) photocatalysis fishy-smell removing agent preparation: described photocatalysis fishy-smell removing agent preparation comprises the following steps:
(1) fishy-smell removing agent raw material prepares: by following amount percentage preparation fishy-smell removing agent: titania powder 20 ~ 30%, zeolite powder 70 ~ 80%;
(2) preparation of fishy-smell removing agent: the water adding material powder quality 2 ~ 4 times after being mixed by fishy-smell removing agent raw material, after stirring, ultrasonic disperse 40 ~ 50 minutes, carries out drying and crushing by compound after having disperseed, and gained mixed-powder is crossed 100 ~ 150 mesh sieves;
(3) photocatalysis takes off raw meat: be that 1:10 ~ 15 take fishy-smell removing agent by fishy-smell removing agent and the molten slurry mass ratio of fish, the specification of fishy-smell removing agent by 1 ~ 5 gram every bag is loaded in filter bag, the filtering mesh bag that fishy-smell removing agent is housed is put into the molten slurry of fish stir process 1 ~ 3 hour under artificial light source illumination;
(4) except raw meat agent is separated: the filter bag that fishy-smell removing agent is housed is taken out, just can obtain the molten slurry of fish after de-raw meat.
2. the molten slurry of a kind of fish takes off the method for raw meat according to claim 2, it is characterized in that: it is high-pressure sodium lamp light source or xenon source that described photocatalysis takes off raw meat artificial light source used.
3. the molten slurry of a kind of fish takes off the method for raw meat according to claim 2, it is characterized in that: described zeolite is chabasie or type A zeolite.
4. the molten slurry of a kind of fish takes off the method for raw meat according to claim 1, it is characterized in that: the aperture 0.2 ~ 0.3mm of described filtering mesh bag.
5. the molten slurry of a kind of fish takes off the method for raw meat according to claim 1, it is characterized in that: described titania powder is nm-class rutile-type or anatase titanium dioxide.
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| CN201510482614.2A CN105104921A (en) | 2015-08-07 | 2015-08-07 | Fishy smell removing method for hydrolyzed fish protein |
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Cited By (3)
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|---|---|---|---|---|
| CN105969827A (en) * | 2016-05-09 | 2016-09-28 | 浙江海洋大学 | Method for removing fishy smell from enzymatic hydrolysate of fish protein |
| CN107227332A (en) * | 2017-07-11 | 2017-10-03 | 浙江丰宇海洋生物制品有限公司 | A kind of method of the molten slurry production peptone of utilization fish |
| CN107226855A (en) * | 2017-07-11 | 2017-10-03 | 浙江丰宇海洋生物制品有限公司 | A kind of peptone of the molten slurry production of utilization fish |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107227332A (en) * | 2017-07-11 | 2017-10-03 | 浙江丰宇海洋生物制品有限公司 | A kind of method of the molten slurry production peptone of utilization fish |
| CN107226855A (en) * | 2017-07-11 | 2017-10-03 | 浙江丰宇海洋生物制品有限公司 | A kind of peptone of the molten slurry production of utilization fish |
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Application publication date: 20151202 |