Calcium for food additives
Made from High-Quality Limestone Mined in Kochi
We use high-quality limestone mined in Kochi Prefecture as our raw material, and our own limestone calcination technology to produce high-purity, high-quality calcium products for food additive use.
These are used as coagulants for konjac and as calcium fortifiers across a range of food applications. Because we handle everything from quarrying through calcination to quality control ourselves, lot-to-lot variation is kept to a minimum.
- High purity
- Good dispersibility in water
- Low heavy metal content
| Type | Product |
|---|---|
| Calcium oxide for food additives | Aji-ikkan Ichimanryo |
| Calcium hydroxide for food additives | Hanakobai / Kontarou / Shinyuki |
Aji-ikkan Ichimanryo (Calcium Oxide for Food Additives)
Aji-ikkan Ichimanryo is a calcium oxide for food additive use. It has a low content of heavy metals such as lead and arsenic, and has been used for many years as a coagulant for konjac and as a fortifier and other food additive applications.
Its gentle reactivity makes it straightforward to work with, and it is particularly recommended for sashimi konjac, where it contributes to a clear finish and a clean, less astringent taste.
Sashimi konjac
Food Additive Standard for Calcium Oxide
| Item | Unit | Standard |
|---|---|---|
| Appearance | — | White powder |
| Calcium oxide | % | 95.0 min. |
| Hydrochloric acid insolubles | % | 1.0 max. |
| Fluoride (as F) | µg/g | 150 max. |
| Lead (as Pb) | µg/g | 2.0 max. |
| Alkali metals and magnesium | % | 3.6 max. |
| Barium (as Ba) | µg/g | 300 max. |
| Arsenic (as As) | µg/g | 3.0 max. |
| Loss on ignition (800°C) | % | 10.0 max. |
Scroll horizontally to view the full table
Standard values are those of the Japanese food additive specification.
Hanakobai, Kontarou and Shinyuki (Calcium Hydroxide for Food Additives)
Three grades of calcium hydroxide for food additive use are available: Hanakobai, Kontarou and Shinyuki. All can be used as food additives, including as coagulants for konjac and as fortifiers.
Hanakobai in particular is controlled to a quality standard tighter than the food additive standard itself. We have also obtained Kochi Prefecture's HACCP certification as part of our commitment to quality improvement.
Kochi Prefecture HACCP certification
Food Additive Standard for Calcium Hydroxide
| Item | Unit | Standard |
|---|---|---|
| Appearance | — | White powder |
| Calcium hydroxide | % | 95.0 min. |
| Hydrochloric acid insolubles | % | 0.5 max. |
| Carbonate | — | No marked effervescence |
| Lead (as Pb) | µg/g | 2.0 max. |
| Alkali metals and magnesium | % | 6.0 max. |
| Barium (as Ba) | % | 0.030 max. |
| Arsenic (as As) | µg/g | 3.0 max. |
Scroll horizontally to view the full table
Standard values are those of the Japanese food additive specification.
About calcium for food additives
