CN1037069A - Tanning leftover is produced the method for edible gelatin - Google Patents
Tanning leftover is produced the method for edible gelatin Download PDFInfo
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- CN1037069A CN1037069A CN 88105703 CN88105703A CN1037069A CN 1037069 A CN1037069 A CN 1037069A CN 88105703 CN88105703 CN 88105703 CN 88105703 A CN88105703 A CN 88105703A CN 1037069 A CN1037069 A CN 1037069A
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- skin silk
- gelatin
- silk
- edible gelatin
- produced
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Abstract
A kind of tanning leftover is produced the method for edible gelatin, with Ca (OH)
2The aqueous solution is cleaning treatment skin silk in high low water level draining kitchen sink, with the foreign material on floating in the maximum discharge mouth eliminating skin silk, get rid of surplus water with the low emission mouth, its technology is simple, easy to operate, solved with the way that limes and the skin silk is expanded and to cause lime particle to clean unclean, product quality is inferior, the problem of shade deviation, made full use of the gelatin resource, improved the gelatin yield, equipment investment is few, good product quality.
Description
The invention belongs to a kind of process of producing edible gelatin with tanning leftover.
The tanning leftover of tannery is white thread waste residue, is commonly called as radish silk or shaving skin silk, as the raw material of producing gelatin.Carry glue with this skin silk, propose the preceding processing of glue and generally use ∥ ∥ И a
2CO
3Soak shaving skin silk as swelling agent, the skin silk is fully expanded; Or on shaving skin silk, sprinkling one deck lime paste, the method for soaking with lime expands the even skin silk of peeling.The former uses ∥ И a
2CO
3Make the processing method of swelling agent, though can produce quality edible gelatin preferably, because И a
2CO
3In short supply, price is higher, so improved the cost of product; V-type cleaning machine cost Gao Pisi runs off seriously in addition, thereby at present except that minority producer lab scale, does not have the family production that formally starts.General medium-sized and small enterprises, township enterprise more is difficult for starting.The method that the latter soaks with lime, general 30～40 days of time, the production cycle is long, is to be difficult to the lime particle of Pi Sizhong is removed totally, makes it can not produce high-grade gelatin.
The object of the present invention is to provide a kind of aqueous solution with CaO is Ca(OH)
2Make the method that shaving skin silk expands produce edible gelatin.
The method that the present invention finishes is that shaving skin silk is put in the high low water level draining kitchen sink, adds water, earlier the impurity on skin silk surface and educt wash clean, adds clear water after the blowdown again, cleans several times repeatedly, till clean.The shaving skin silk that has cleaned up soaks with limewash, and the cream that directly do not lime after making it fully to expand, cleans up with clear water again, then with acid neutralization trip drench alkali, just goes up and pot carries glue.
Advantage of the present invention is that technology is simple, and is easy to operate, solved with the way that limes to make the expansion of shaving skin silk and cause the lime particle cleaning unclean, and product quality is inferior, the problem of shade deviation; Make full use of the gelatin resource, improved the gelatin yield; Equipment investment is few.
Most preferred embodiment of the present invention is: 1, with high low water level draining kitchen sink soaking and washing shaving skin silk, one side in pond has two exhaust outlets, one high and one low, maximum discharge outlet is used for discharging in the cleaning process from shaving skin silk emersion at the wood chip and the chaff slag of the water surface, make these impurity no longer fall into Pi Sizhong, following exhaust outlet is used for discharging the surplus water in the pond.With this high low water level discharging kitchen sink, can clean up the impurity on skin silk surface; 2, the shaving skin silk of having cleaned is immersed in Ca(OH)
2In the aqueous solution, fully expand, the content of its CaO is 0.4～1.5%, and the immersion treatment time is 20～40 hours; After the skin silk washes clean of 3, soaking, be in the HCL aqueous solution of 3-5 with the ∥ pH value and the free alkali of Pi Sizhong, 1-2 hour neutralisation treatment time; 4, after the skin silk that neutralisation treatment is crossed washs pH value and is 6-7, carry glue with regard to last pot.Can produce the viscosity height through the shaving skin silk of handling like this, coloury edible gelatin meets the quality testing standard of national detection department.
Claims (4)
1, a kind of tanning leftover is produced the method for edible gelatin, comprises tanning leftover being that shaving skin silk is being handled forward and backward cleaning, it is characterized in that cleaning the skin silk with high low water level draining kitchen sink earlier, uses Ca (OH) again
2The aqueous solution expands the skin silk, carries out neutralisation treatment with acid then and transfers pH value, extracts edible gelatin.
2, method according to claim 1, the ∥ ∥ Ca(OH of the skin silk that it is characterized in that expanding)
2The content of CaO is 0.4-1.5% in the aqueous solution, and the processing time is 20-40 hour.
3, method according to claim 1, the pH value that it is characterized in that neutralisation treatment is 3～5,1-2 hour neutralisation treatment time.
4, method according to claim 1, the pH value that it is characterized in that carrying glue is 6-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105703 CN1037069A (en) | 1988-04-20 | 1988-04-20 | Tanning leftover is produced the method for edible gelatin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105703 CN1037069A (en) | 1988-04-20 | 1988-04-20 | Tanning leftover is produced the method for edible gelatin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1037069A true CN1037069A (en) | 1989-11-15 |
Family
ID=4833852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105703 Pending CN1037069A (en) | 1988-04-20 | 1988-04-20 | Tanning leftover is produced the method for edible gelatin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049804C (en) * | 1995-11-15 | 2000-03-01 | 刘忠 | Method for producing protein powder from leather scraps |
| CN1056268C (en) * | 1998-10-23 | 2000-09-13 | 汤革三 | High chromium gelatin |
-
1988
- 1988-04-20 CN CN 88105703 patent/CN1037069A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049804C (en) * | 1995-11-15 | 2000-03-01 | 刘忠 | Method for producing protein powder from leather scraps |
| CN1056268C (en) * | 1998-10-23 | 2000-09-13 | 汤革三 | High chromium gelatin |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |