CN1234431A - Melting process for extracting edible animal oil - Google Patents
Melting process for extracting edible animal oil Download PDFInfo
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- CN1234431A CN1234431A CN 98122039 CN98122039A CN1234431A CN 1234431 A CN1234431 A CN 1234431A CN 98122039 CN98122039 CN 98122039 CN 98122039 A CN98122039 A CN 98122039A CN 1234431 A CN1234431 A CN 1234431A
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- edible animal
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Abstract
The rendering method for extracting edible animal oil includes the steps of preparing raw material, soaking, cutting, rendering, removing scraps, filtering and settling,etc., in which the soaking procedure adopts sulfite aqueous solution to make freshness-keeping and anti-oxidation treatment of raw material, and the dosage of the sulfite is 0.01-0.04% of weight of the raw material. Said invention is simple, safe, reliable, low in cost, has no need of refining procedure, and can obtain high-quality animal oil with original flavour and taste, good color, low acid number and low peroxide value.
Description
What the present invention relates to is a kind of from the greasy method of raw material production, specifically relates to a kind of from the greasy method of animal fat extraction.
The melting method that extracts edible animal oil at present mainly is that raw material is destroyed through heating melting fatty tissue with fire heating melting, and grease flows out and obtains finished product.The step of this method comprises:
1. get the raw materials ready: with fresh leaf fat, meat fat, the nethike embrane of animal or be attached to pure fat tissue on the organ one or more be raw material;
2. clean: with residual blood and the impurity on the clear water flush away raw material;
3. stripping and slicing:, make fritter with the raw material drop branch that anhydrates;
4. melting: go into pot with fire heating melting, stir and prevent sticking pot, temperature control prevents to endure Jiao, extracts grease;
5. drag for slag: the dregs of fat are pulled out, squeezed out remaining grease;
6. filter, precipitate: grease is separated with residue.
The advantage of this fire heating melting method is that equipment is simple, and investment in fixed assets is little; Shortcoming is that acid value, peroxide value, the lustre index of finished product is difficult to reach state health standards.The reason that acid value is high mainly be before the melting raw material win, fat splitting acid becomes in the transportation, storage.Color and luster Huang, the reason that peroxide value is high mainly are grease over oxidations in the fusion process.For the grease of the said extracted that improves the quality also needs to carry out refining, it comprises steps such as neutralization, drying, decolouring.Refining not only increases cost, more than loss part grease.
The objective of the invention is provides a kind of melting method that extracts edible animal oil at the existing in prior technology defective, this method can make the animal oil color and luster of refining out good, its inherent fragrance and flavour arranged, acid value, peroxide value, moisture are low, long quality-guarantee period, and method is reliable, easy.
Purpose of the present invention realizes by following technical proposal, a kind of melting method that extracts edible animal oil provided by the invention, and it may further comprise the steps:
1. get the raw materials ready: with leaf fat, meat fat, the nethike embrane of the fresh cleaning of animal or be attached to pure fat tissue on the organ one or more be raw material;
2. soak: above-mentioned raw materials is in time immersed in the aqueous solution of sulphite, stir;
3. stripping and slicing:, make fritter with the above-mentioned raw material drop branch that anhydrates through soaking;
4. melting: above-mentioned fritter raw material is gone into the fiery melting of pot, and stirring, temperature control extract grease;
5. drag for slag, filtration, precipitation: the grease of said extracted is separated with residue.
Sulphite of the present invention is S-WAT or Sodium Hydrosulphite or Sodium Pyrosulfite or sodium bisulfite, and its consumption is the 0.01-0.04% of raw material weight.
The present invention has following advantage compared with prior art:
1. with sulphite raw material is carried out fresh-keeping, antioxidation treatment, suppress microbial activities effectively, the hydrolysis acid before melting of control raw material becomes, thereby reduces greasy acid value; Because sulphite decomposes, form reducing atmosphere in fusion process, weakened oxygenizement, thereby reduced peroxide value, form good colour, product has animal oil institute inherent fragrance and flavour.
2. product does not need refining, directly reach or be better than state health standards, and method is easy, safe and reliable, with low cost.
Description of drawings:
Accompanying drawing 1 extracts the melting method process flow skeleton diagram of edible animal oil for the present invention:
Shown in the figure: 1. get the raw materials ready; 2. soak; 3. stripping and slicing; 4. melting; 5. drag for slag, filtration, precipitation.
Below the present invention is extracted edible animal oil melting method embodiment be described further.
Embodiment 1
With the fresh nethike embrane of live pig, the pure fat tissue that is attached to organ, scrappy meat fat, promptly be soaked in the Sodium Hydrosulphite aqueous solution after cleaning, stir, the consumption of Sodium Hydrosulphite is the 0.032-0.040% of raw material weight, soaks more than 20 minutes, pulls drop then out and removes surface-moisture, be cut into small pieces, melting is filtered, is precipitated, and can obtain superfine edible lard.Its color and luster snow, tissue is fine and smooth, is the ointment shape, and lard inherent fragrance and flavour are arranged, and acid value is 0.24-0.85mgKOH/g, and peroxide value is 1.3-2.5meq/kg, and refractive index is 1.458-1.462.
The lard that same raw material makes with prior art is with light dark yellowly during its color and luster is white, slight bright dregs of fat smell is arranged and burn flavour, and acid value is 1.3-2.7mgKOH/g, and peroxide value is 5.0-10.0meq/kg, and refractive index is 1.458-1.462.
Embodiment 2
With the fresh nethike embrane of live pig, the pure fat tissue that is attached to organ, scrappy meat fat, promptly immerse in the sodium sulfite aqueous solution after cleaning, stir, the consumption of S-WAT is the 0.03-0.04% of raw material weight, soaks more than 20 minutes, pulls drop then out and removes surface-moisture, be cut into small pieces, melting is filtered, is precipitated, and can obtain the edible lard of high-quality.Be with yellowishly in its color and luster, tissue is fine and smooth, is the ointment shape, and lard inherent fragrance and flavour are arranged, and acid value is 0.6-1.2mgKOH/g, and peroxide value is 2.0-3.5meq/kg, and refractive index is 1.458-1.462.
Embodiment 3
With the fresh nethike embrane of live pig, the pure fat tissue that is attached to organ, scrappy meat fat, promptly immerse in the metabisulfite solution after cleaning, stir, the consumption of Sodium Pyrosulfite is the 0.034-0.040% of raw material weight, soaks more than 20 minutes, pulls drop then out and removes surface-moisture, be cut into small pieces, melting is filtered, is precipitated, and can obtain the edible lard of high-quality.Be with yellowishly in its color and luster, tissue is fine and smooth, is the ointment shape, and lard inherent fragrance and flavour are arranged, and acid value is 0.8-1.4mgKOH/g, and peroxide value is 2.0-3.5meq/kg, and refractive index is 1.458-1.462.
Promptly be soaked in the Sodium Hydrosulphite aqueous solution after the fresh scrappy show condition of duck cleaned, stir, the consumption of Sodium Hydrosulphite is the 0.035-0.04% of raw material weight, soak more than 20 minutes, pull drop then out and remove surface-moisture, melting, filtration, precipitation promptly make high-quality duck oil.Its color and luster is yellowish, and duck oil inherent fragrance and flavour are arranged, and is the ointment shape, and acid value is 0.6-1.2mgKOH/g, and peroxide value is 1.4-2.8meq/kg.
Embodiment 5
Promptly immerse in the Sodium Hydrosulphite aqueous solution after the fresh leaf fat of sheep and scrappy show condition cleaned, stir, the consumption of Sodium Hydrosulphite is the 0.03-0.04% of raw material weight, soak more than 20 minutes, pull drop then out and remove surface-moisture, be cut into small pieces melting, filter, precipitation, get final product high-quality sheep oil.Its color and luster is white, and sheep oil inherent fragrance and flavour are arranged, and is stearic shape, and acid value is 0.3-0.8mgKOH/g, and peroxide value is 1.2-2.0meq/kg.
From above-mentioned example as can be seen, the animal oil quality index that melts out with method of the present invention all is significantly increased.
Claims (3)
1. a melting method that extracts edible animal oil is characterized in that, this method may further comprise the steps:
A. get the raw materials ready: with leaf fat, meat fat, the nethike embrane of the fresh cleaning of animal or be attached to pure fat tissue on the organ one or more be raw material;
B. soak: above-mentioned raw materials in time immerses in the aqueous solution of sulphite, stirs;
C. stripping and slicing: above-mentioned raw material drop through soaking is removed surface-moisture, make fritter;
D. melting: the above-mentioned raw material that is cut into small pieces is gone into a pot melting, and stirring, temperature control extract grease;
E. drag for slag, filtration, precipitation: the animal oil of said extracted is separated with residue.
2. according to the melting method of the described extraction edible animal oil of claim 1, it is characterized in that the sulphite among the above-mentioned steps B is S-WAT, or Sodium Hydrosulphite, or Sodium Pyrosulfite, or sodium bisulfite.
3. according to the melting method of claim 1 or 2 described extraction edible animal oils, it is characterized in that the consumption of the sulphite among the above-mentioned steps B is the 0.01-0.04% of above-mentioned raw materials weight
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98122039A CN1063781C (en) | 1998-11-26 | 1998-11-26 | Melting process for extracting edible animal oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98122039A CN1063781C (en) | 1998-11-26 | 1998-11-26 | Melting process for extracting edible animal oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1234431A true CN1234431A (en) | 1999-11-10 |
| CN1063781C CN1063781C (en) | 2001-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98122039A Expired - Fee Related CN1063781C (en) | 1998-11-26 | 1998-11-26 | Melting process for extracting edible animal oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942354B (en) * | 2009-08-24 | 2012-07-25 | 解振清 | High-efficiency energy-saving animal oil refining method and complete set special system thereof |
| CN104171031A (en) * | 2014-07-14 | 2014-12-03 | 和县绿源油脂有限公司 | Pork oil extraction method |
| CN109055002A (en) * | 2018-10-25 | 2018-12-21 | 安徽省农业科学院农产品加工研究所 | A kind of production method that low-temperature refining pickles lard |
| CN112391228A (en) * | 2020-11-10 | 2021-02-23 | 夏楚健 | Animal oil refining method |
-
1998
- 1998-11-26 CN CN98122039A patent/CN1063781C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942354B (en) * | 2009-08-24 | 2012-07-25 | 解振清 | High-efficiency energy-saving animal oil refining method and complete set special system thereof |
| CN104171031A (en) * | 2014-07-14 | 2014-12-03 | 和县绿源油脂有限公司 | Pork oil extraction method |
| CN109055002A (en) * | 2018-10-25 | 2018-12-21 | 安徽省农业科学院农产品加工研究所 | A kind of production method that low-temperature refining pickles lard |
| CN112391228A (en) * | 2020-11-10 | 2021-02-23 | 夏楚健 | Animal oil refining method |
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| Publication number | Publication date |
|---|---|
| CN1063781C (en) | 2001-03-28 |
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