AP1719A - Improved process for maintaining the stability of the fortification. - Google Patents
Improved process for maintaining the stability of the fortification. Download PDFInfo
- Publication number
- AP1719A AP1719A APAP/P/2000/001896A AP2000001896A AP1719A AP 1719 A AP1719 A AP 1719A AP 2000001896 A AP2000001896 A AP 2000001896A AP 1719 A AP1719 A AP 1719A
- Authority
- AP
- ARIPO
- Prior art keywords
- iodine
- salt
- silicates
- entrapped
- carbonates
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011630 iodine Substances 0.000 claims abstract description 32
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 32
- 150000003839 salts Chemical class 0.000 claims abstract description 17
- 150000004760 silicates Chemical class 0.000 claims abstract description 13
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 239000005428 food component Substances 0.000 claims abstract description 9
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims abstract description 8
- 235000012041 food component Nutrition 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 150000002496 iodine Chemical class 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 6
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 5
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 5
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 5
- 239000011363 dried mixture Substances 0.000 claims description 5
- JLKDVMWYMMLWTI-UHFFFAOYSA-M potassium iodate Chemical compound [K+].[O-]I(=O)=O JLKDVMWYMMLWTI-UHFFFAOYSA-M 0.000 claims description 5
- 239000001230 potassium iodate Substances 0.000 claims description 5
- 235000006666 potassium iodate Nutrition 0.000 claims description 5
- 229940093930 potassium iodate Drugs 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- ICIWUVCWSCSTAQ-UHFFFAOYSA-N iodic acid Chemical class OI(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical class OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 229910001516 alkali metal iodide Inorganic materials 0.000 claims description 2
- 229910001619 alkaline earth metal iodide Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 235000013312 flour Nutrition 0.000 claims 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 22
- 239000011780 sodium chloride Substances 0.000 abstract description 13
- 238000010411 cooking Methods 0.000 abstract description 8
- 235000002639 sodium chloride Nutrition 0.000 description 27
- 239000000243 solution Substances 0.000 description 17
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 description 11
- 235000014106 fortified food Nutrition 0.000 description 4
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010067997 Iodine deficiency Diseases 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011037 discontinuous sequential dilution Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 235000006479 iodine deficiency Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
Landscapes
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
A food component, in particular sodium chloride, fortified with iodine. Loss of the iodine during cooking and/or storage is reduced by entrapping it in a matrix of inorganic salts such as carbonates and/or silicates of bipositive and tripositive metal ions.
Description
Technical Field:
The present invention relates to a synergistically fortified food components, particularly but not exclusively, sodium chloride or common salt. The present invention also relates to a process of making a bioabsorbable form of iodine relatively cold or hot water insoluble and temperature stable while minimising its volatile loss during storage.
Background and Prior art:
Sodium Chloride or common salt is an ingredient generally used in cooking and approximately 5 million tons is the annual human consumption in India. Iodine is one of the three most essential but normally deficient micro-nutrients and the easiest and most inexpensive method of delivery of the same through food was found to be iodization of common salt. Hence, iodization of salt is a statutory requirement for all edible salt manufactured in India. This requirement is mainly to control the iodine deficiency disorders. Salt is iodized by spraying potassium iodate solution on salt. However, this process does not ensure the stability of iodine. During manufacture, storage and especially cooking the loss of iodine is very high.
Fortification of sodium chloride with iodine is known and such fortified salt is available in the market. However, the stability of iodine in such fortified salt during cooking and storage is not completely eliminated and hence the loss of iodine is quite significant.
It is the basic object of the present invention to provide synergistically fortified food components with material which is bioabsorbable and stable under cooking such as sodium chloride composition comprising 0.15 to 30% entrapped iodine.
Another object of the present invention to provide a process of preparing a source of iodine that is temperature and storage stable. It is soluble only under highly acidic conditions and where volatile iodine loss is minimised.
It is another object of the present invention to fortify food components such as sodium chloride with an iodine rich material that is bioabsorbable and stable under cooking conditions.
Thus according to the basic object of the present invention there is provided a synergistically fortified food component entrapped in a matrix of inorganic salts selected from carbonates and/or silicates of bipositive and tripositive metal ions with or without other alkali metal carbonates and/or silicates.
The invention thus provides for iodine entrapped in a matrix of inorganic salts such as carbonates and/or silicates of bipositive and tripositive metal ions such that the iodine is protected during cooking and storage but is bioabsorbable.
The present invention thus further provides a fortified food component for e.g. sodium chloride composition comprising 0.15 to 30% entrapped iodine.
According to another aspect of the present invention there is provided a process of obtaining iodine entrapped in a matrix comprising:
i. mixing carbonates and/or silicates of at least one bipositive metal ion and at least one tripositive metal ion in presence of water and optionally other alkali metal carbonates and/or silicates;
ii.
drying or heating the said mixture at a temperature range of 300 to 700°C;
iii. mixing the dried mixture of step (ii) at least once with solution of an iodine salt, such that the ratio of Iodine to mixture of step (ii) is 3 to 450%.
According to a preferred aspect of the present invention there is provided a process of obtaining iodine entrapped in a matrix comprising:
i. mixing carbonates and/or silicates of at least one bipositive metal ion selected from magnesium and/or zinc and at least one tripositive metal ion selected from aluminum and/or iron in presence of water and optionally other alkali metal carbonates and/or silicates;
ii. drying or heating the said mixture at a temperature range of 300 to 700°C and cooling it to a temperature below 200°C;
iii. mixing the dried mixture of step (ii) at least once with solution of an iodine salt, such that the ratio of Iodine to mixture of step (ii) is 15 to 300% iv. separation of the solid from the slurry and optionally washing and drying the material to a moisture level < 5%.
Detailed description of the invention:
The invention essentially utilizes a process of entrapping iodine in a matrix of inorganic salts commonly used in salt as flow aids, such that the iodine is protected during cooking and storage but is bioabsorbable.
The iodine salt may be selected from alkali and alkaline earth metal iodides, iodates, periodates or a mixture thereof. Examples of such compounds are sodium, potassium, calcium, magnesium or aluminum salts of iodides, iodates or periodates. The most preferred compounds are potassium iodide or potassium iodate. The iodine salt is preferably introduced as an aqueous solution. It is preferred to mix the treated layered double hydroxides into the solution of the iodine salt.
The preferred ratio between the dried inorganic salt matrix and the iodine salt is 0.3 to 3.0.
After the mixing of the dried mixture of inorganic salts into the solution of the iodine salt, the solid is separated from the slurry preferably by filtration or centrifugation. The wet cake is washed well with cold or hot water and the material is dried to a moisture level < 5%.
It is generally preferable to fortify salt by this material and the level at which it is fortified ranges from 0.01 to 2% The incorporation of the material into salt is done preferably by sequential dilution to ensure homogeneous mixing.
The invention will now be demonstrated with reference to the following non-limiting examples.
EXAMPLES:
Example 1:
Process for entrapping iodine:
A freshly prepared aqueous slurry mixture of 8 g of magnesium carbonate and 2 g of aluminum silicate was dried at 450°C for 2 hours. This material was mixed with 100 ml of 8% potassium iodate solution and mixed at 25°C for 8 hours. The solid material was filtered and washed repeatedly with distilled water and dried at 110°C for 4 hours. The material thus obtained has entrapped Iodate (El) and the presence of Iodate was determined by iodometric titration with standard thiosulphate solution.
Properties of the Material:
1. Cold or Hot water stability:
100 mg of the material (El) was slurried in water at a temperature of 25 °C and 100 °C for 30 minutes. The solid was separated by filtration and tested for the presence of Iodate which was determined by iodometric titration with standard thiosulphate solution. A replicated test was conducted and the data analysed statistically.
Table 1
| Initial | 25 °C | 100 °C | |
| % Iodate in solid | 20 | 19.8 | 18.0 |
The data presented in Table 1 shows that there is no significant change in the level of iodate in the solid even after cold or hot water treatment. The conventional iodate salt used to fortify sodium chloride i.e potassium iodate of corresponding amount (100 mg) would be fully soluble in both cold and hot water.
2. Acid solubility:
Hydrochloric acid solution at different pH in the range 7 to 3 was prepared by taking required amounts of the acid in water. 100 mg of the material (El) was slurried in 100 ml of the pH solutions and stirred for 30 minutes. The solution was analysed for iodate release in the solution by iodometric titration with standard thiosulphate solution.
Table 2
| PH of the solution | % Release of iodate from El |
| 7.0 | 1.5 |
| 6.0 | 8.0 |
| 5.0 | 28.0 |
| 4.0 | 65.0 |
| 3.0 | 100.0 |
The data presented in table 2 shows that the iodine is released significantly only when the material is treated with low pH solutions even when the material was under stirring.
3. Storage stability:
Non-iodised common salt or Sodium chloride was fortified with the material (El) to obtain 30 ppm iodine in salt. The material was stored at 30 °C and 75% relative humidity for upto 3 months. 20g of the sample was periodically tested at an interval of 1 month. The salt was dissolved in 100 ml water and iodate in the solution was determined by iodometric titration with standard thiosulphate solution. It was seen that there was no loss of iodine upto 3 months.
Claims (8)
1. Iodine entrapped in a matrix of carbonates and/or silicates of bipositive and tripositive metal ions.
2. Food component fortified by 0.01 to 30%, preferably 0.15-2%, entrapped iodine, wherein the iodine is entrapped according to claim 1.
3. Food component according to claim 2, wherein the food component comprises salt, sugar, flour, or mixtures thereof.
4. Process for obtaining iodine entrapped in a matrix comprising:
a. mixing carbonates and/or silicates of at least one bipositive metal ion and at least one tripositive metal ion in presence of water and optionally other alkali metal carbonates and/or silicates;
b. drying or heating the mixture obtained under (a) at a temperature of 300° to 700°C;
c. mixing the dried mixture of step (b) at least once with solution of an iodine salt, such that the ratio of iodine to mixture of step (b) is 3 to 450%.
5. Process for obtaining iodine entrapped in a matrix comprising:
a. mixing carbonates and/or silicates of at least one bipositive metal ion selected from magnesium and/or zinc and at least one tripositive metal ion selected from aluminium and/or iron in presence of water and optionally other alkali metal carbonates and/or silicates;
b. drying or heating the mixture obtained under (a) at a temperature of 300° to 700°C and cooling it to a temperature below 200°C;
c. mixing the dried mixture of step (b) at least once with solution of an iodine salt, such that the ratio of iodine to mixture of step (b) is 15 to 300%;
d. separation of the solid from the slurry and optionally washing and drying the material to a moisture level of <5%.
6. Process according to claim 4 or 5, wherein the iodine salt is selected from the group of alkali and alkaline earth metal iodides, iodates, periodates, and mixtures thereof.
7. Process according to claim 6, wherein the iodine salt comprises potassium iodide or potassium iodate.
8. Process according to claim 4-7, wherein the ratio between the dried inorganic salt and the iodine salt is 0.3 to 3.0.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN617BO1999 | 1999-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AP2000001896A0 AP2000001896A0 (en) | 2000-09-30 |
| AP1719A true AP1719A (en) | 2007-02-28 |
Family
ID=11080244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| APAP/P/2000/001896A AP1719A (en) | 1999-09-06 | 2000-09-04 | Improved process for maintaining the stability of the fortification. |
Country Status (2)
| Country | Link |
|---|---|
| AP (1) | AP1719A (en) |
| ZA (1) | ZA200004599B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811930A (en) * | 1944-04-25 | 1959-04-15 | Atomic Energy Authority Uk | Improvements in or relating to the separation of gaseous mixtures |
| US5707670A (en) * | 1996-08-29 | 1998-01-13 | The Procter & Gamble Company | Use of bilayer forming emulsifiers in nutritional compositions comprising divalent mineral salts to minimize off-tastes and interactions with other dietary components |
| CN1172608A (en) * | 1996-08-02 | 1998-02-11 | 南充晶晶粉丝厂 | Method for producing iodine enriched kelp wheaten food product |
-
2000
- 2000-09-01 ZA ZA200004599A patent/ZA200004599B/en unknown
- 2000-09-04 AP APAP/P/2000/001896A patent/AP1719A/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811930A (en) * | 1944-04-25 | 1959-04-15 | Atomic Energy Authority Uk | Improvements in or relating to the separation of gaseous mixtures |
| CN1172608A (en) * | 1996-08-02 | 1998-02-11 | 南充晶晶粉丝厂 | Method for producing iodine enriched kelp wheaten food product |
| US5707670A (en) * | 1996-08-29 | 1998-01-13 | The Procter & Gamble Company | Use of bilayer forming emulsifiers in nutritional compositions comprising divalent mineral salts to minimize off-tastes and interactions with other dietary components |
Also Published As
| Publication number | Publication date |
|---|---|
| AP2000001896A0 (en) | 2000-09-30 |
| ZA200004599B (en) | 2002-03-01 |
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