CN104531361A - Crude fish oil extraction method - Google Patents

Crude fish oil extraction method Download PDF

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Publication number
CN104531361A
CN104531361A CN201410719195.5A CN201410719195A CN104531361A CN 104531361 A CN104531361 A CN 104531361A CN 201410719195 A CN201410719195 A CN 201410719195A CN 104531361 A CN104531361 A CN 104531361A
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CN
China
Prior art keywords
fish
fish oil
added
water
carried out
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410719195.5A
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Chinese (zh)
Inventor
沈奕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Vocational College of Science and Technology
Original Assignee
Shandong Vocational College of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Vocational College of Science and Technology filed Critical Shandong Vocational College of Science and Technology
Priority to CN201410719195.5A priority Critical patent/CN104531361A/en
Publication of CN104531361A publication Critical patent/CN104531361A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B13/00—Recovery of fats, fatty oils or fatty acids from waste materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention provides a method for extracting fish oil from freshwater fish scraps. The method is characterized in that a potassium method is used for replacing a traditional light alkali hydrolysis method for extracting fish oil. A technical scheme of the method comprises the following steps: a certain amount of the fish scraps is weighed and cleaned; homogenization is carried out; water with weight 0.5-1.5 times that of fish is added, and the mixture is stirred; the temperature is increased to 50 DEG C with water bath; a potassium hydroxide solution is added, and the pH value of the mixture is increased to 7.5; an extraction temperature is 65 DEG C and an extraction time is 55min; potassium nitrate with weight accounting for 5% of that of fish is added; stirring is continued, and hydrolysis and salting-out are carried out together for 20min; centrifugation is carried out for 10min with a speed of 3000r/min when the material is still hot; and an upper layer is separated, such that crude fish oil is obtained.

Description

A kind of crude fish oil extracting method
Technical field
The present invention relates to healthcare product development field, particularly a kind of crude fish oil extracting method.
Background technology
Fish oil is the integral part in fresh-water fishes processing waste fish viscera.Different fish, the lipid acid composition of fish oil has larger difference.In general, the content of the polyunsaturated fatty acid of seawater fish oil is much larger than fresh water fish oil, and this has different utility values with regard to the fish oil determining different fingerling.Be rich in n-3 series polyunsaturated fatty acid (DHA and EPA) in the fatty tissue of seawater fish, they have multiple physiologically active as strengthened nervous function, brain healthy, prevention senile dementia; Suppress platelet aggregation, reduce thrombosis, prevent cardiovascular and cerebrovascular diseases; Anti-inflammatory, anticancer, enhancing autoimmunity; Vision protection etc.
But one to carry out fish oil cost high, second can be used for the abyssal pelagic fishes resource-constrained of fish oil processing.And timnodonic acid (EPA) in the fresh-water fishes such as silver carp, bighead internal organ and docosahexenoic acid (DHA) content and some ocean fish substantially close.Therefore, utilize fresh-water fishes processing byproduct processing fish oil not only can break through the limitation of fish oil raw material, and added value and the utilization of resources rate of freshwater product can be improved.
Summary of the invention
The present invention proposes a kind of method extracting fish oil from fresh water fish leftover bits and pieces, it is characterized in that, utilize potassium method to instead of traditional light alkali hydrolysis method to carry out the extraction of fish oil, technical scheme is as follows:
Take a certain amount of fish pomace to clean, homogenate, add fish weight 0.5-1.5 water doubly, stir, warming-in-water to 50 DEG C, add potassium hydroxide solution and regulate pH to 7.5, Extracting temperature is 65 DEG C, extraction time is 55min, add the saltpetre that fish weighs 5%, continue to stir limit hydrolysis, while 20 min that saltout, 3000r/min is centrifugal 10min while hot, is separated upper strata and namely obtains crude fish oil.
By above method for hydrolysis, improve the extraction yield of fish oil, raw materials used sylvite is traditional agriculture fertilizer simultaneously, and adding containing a large amount of amino acid, protein in the waste residue after extracting fish oil, waste liquid, is good green fertilizer.
Embodiment
Take a certain amount of fish pomace to clean, homogenate, half amount that adds is to sesqui water gaging, stir, warming-in-water to 50 DEG C, add potassium hydroxide solution and regulate pH to 7.5, Extracting temperature is 65 DEG C, extraction time is 55min, add the saltpetre that fish weighs 5%, continue to stir limit hydrolysis, while 20 min that saltout, 3000r/min is centrifugal 10min while hot, is separated upper strata and namely obtains crude fish oil.

Claims (1)

1. take a certain amount of fish pomace to clean, homogenate, add fish weight 0.5-1.5 water doubly, stir, warming-in-water to 50 DEG C, add potassium hydroxide solution and regulate pH to 7.5, Extracting temperature is 65 DEG C, extraction time is 55min, add the saltpetre that fish weighs 5%, continue to stir limit hydrolysis, while 20 min that saltout, 3000r/min is centrifugal 10min while hot, is separated upper strata and namely obtains crude fish oil.
CN201410719195.5A 2014-12-03 2014-12-03 Crude fish oil extraction method Pending CN104531361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410719195.5A CN104531361A (en) 2014-12-03 2014-12-03 Crude fish oil extraction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410719195.5A CN104531361A (en) 2014-12-03 2014-12-03 Crude fish oil extraction method

Publications (1)

Publication Number Publication Date
CN104531361A true CN104531361A (en) 2015-04-22

Family

ID=52846997

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410719195.5A Pending CN104531361A (en) 2014-12-03 2014-12-03 Crude fish oil extraction method

Country Status (1)

Country Link
CN (1) CN104531361A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105176662A (en) * 2015-10-23 2015-12-23 江南大学 Method for extracting fish brain oil by using alkaline process
CN107047809A (en) * 2017-03-31 2017-08-18 福州海汇生物科技实业有限公司 A kind of fish oil preparation technology
CN107494362A (en) * 2017-07-21 2017-12-22 浙江海洋大学 A kind of bait intensifying method for improving hickie squid larva survival rate
CN108102790A (en) * 2016-11-24 2018-06-01 中国科学院大连化学物理研究所 A kind of aquatic byproducts fatty-acid ethyl ester preparation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105176662A (en) * 2015-10-23 2015-12-23 江南大学 Method for extracting fish brain oil by using alkaline process
CN108102790A (en) * 2016-11-24 2018-06-01 中国科学院大连化学物理研究所 A kind of aquatic byproducts fatty-acid ethyl ester preparation method
CN107047809A (en) * 2017-03-31 2017-08-18 福州海汇生物科技实业有限公司 A kind of fish oil preparation technology
CN107494362A (en) * 2017-07-21 2017-12-22 浙江海洋大学 A kind of bait intensifying method for improving hickie squid larva survival rate

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150422