Definition
Calcium inosinate is purported to be the calcium salt of inosinic acid (also known as inosine monophosphate, IMP), a nucleotide that occurs naturally in many biological tissues.
Overview
The compound is occasionally mentioned in the context of food additives and flavor enhancers, where nucleotides such as disodium inosinate (E 631) are employed to impart umami taste. Calcium inosinate, if it exists as a distinct commercial product, would theoretically serve a similar purpose, potentially offering an alternative to sodium‑based salts. However, reliable and comprehensive sources describing its production, regulatory status, or usage in the food industry are not readily available.
Etymology / Origin
- Inosinic: derived from “inosine,” a nucleoside formed from hypoxanthine attached to a ribose sugar.
- Calcium: indicates the presence of the divalent metal ion Ca²⁺ as the counter‑ion to the acidic phosphate group of inosinic acid.
Characteristics
- Chemical nature: Expected to be an inorganic salt formed by neutralizing the phosphoric acid group of inosinic acid with calcium ions.
- Physical properties: Specific data such as melting point, solubility, and exact molecular formula are not documented in publicly accessible scientific literature.
- Applications: No verified records of its approval as a food additive (e.g., an E‑number) or of its commercial manufacturing.
Related Topics
- Inosinic acid (IMP) – a naturally occurring nucleotide involved in cellular metabolism and a known flavor enhancer.
- Disodium inosinate (E 631) – a widely used sodium salt of IMP employed in the food industry.
- Umami – the taste sensation associated with nucleotides like IMP and guanylate.
Accurate information is not confirmed. The term “calcium inosinate” is not widely recognized in established scientific or regulatory references, and available data are limited to speculative descriptions based on its presumed chemical relationship to inosinic acid.