Guaiac resin; Gum guaiac
|E number||E314 (antioxidants, ...)|
|Melting point||85–90 °C (185–194 °F; 358–363 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Gum guaicum, or guaiac resin, is a substance produced from the tree species Guaiacum officinale. It is registered as food additive: as a preservative under the E number E241, and as an antioxidant under E314.
Chemicallly, it is mixture of approximately 70% alpha- and beta-guaiaconic acids, 10% guaiaretic acid, 15% guaiac beta-resin, and small quantities of other chemical compounds such as guaiac yellow and vanillin.
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