Tragacanthus gum (Tragacanth, Gummi Tragacanthae, tragacanthus, E413) - stabilizer; ushingamu omisiwe ogeleza usuka ekusikeni kweziqu namagatsha esihlahla esinameva i-astragalus tragacanthus.
Imithombo ye-gum yokuhweba yizinhlobo eziyi-12-15. Izindawo zokuvuna zendabuko yizintaba ezimaphakathi eNingizimu-mpumalanga yeTurkey, eNyakatho-ntshonalanga naseNingizimu ye-Iran. Esikhathini esidlule, ukuvunwa kwakwenziwa emazweni aseTranscaucasia naseTurkmenistan (Kopetdag). Kokubili ukuphuma kwemvelo nokuphumayo okuvela ekusikeni okukhethekile kuyaqoqwa.
Kunezinhlobo ezimbili zezinsini ze-tragacanthus ezimakethe zaseYurophu: i-tragacanthus yasePheresiya (kaningi) kanye ne-Anatolian tragacanthus. Emngceleni wePakistan, India kanye ne-Afghanistan, kutholakala inhlaka eyaziwa ngokuthi i-Chitral gum.
I-Tragacanthum gum isetshenziswa emithini yokwelapha ukulungisa ukumiswa, njengesisekelo samaphilisi namaphilisi. Ibuye isetshenziswe ekulungiseleleni i-mastic ye-confectionery yamandla obuningi.