Encapsulation of purple sweet potato's anthocyanin in CMC-PVA matrix for development of paper strips as a colorimetric biosensor

Bioactive compound from local resources such as anthocyanin has a high potential to develop biosensor for nitrite detection. As biosensor, this shows instability certain environmental conditions. To overcome this, bioactive may need encapsulate. The aim of work is encapsulate in the CMC-PVA matrix improve its stability paper strip sodium result that encapsulated by CMC/PVA well formed. Encapsulated good homogeneity and it was strongly immobilized matrix. attached surface medium penetrated into shown changing color red yellow applied nitrite. selectivity system observed various other chemicals including heavy metals Pb2+, Zn2+, Fe3+, Mg2+, NaCl, boric acid, monosodium glutamate, benzoate, formalin with concentration 10000 ppm, respectively, selective towards This gives basic information development practical green sensor form strips detection selectivity.