Exploring of of Macro-Micro Minerals in Different Rice Species at Pandenglang Utilizing Neutron Activation Analysis Method Sari Hasnah Dewi, Th. Rina Mulyaningsih, Saeful Yusuf, Alfian, Istanto, Siti Suprapti, Firda Amalia, Fatmawati and Ferly Hermana
Organization Research for Nuclear Energy - National Research and Innovation Agency
Abstract
Exploring of macro-micro minerals in different rice species produced in Pandeglang had been done using neutron activation analysis. Neutron activation analysis is a method using neutron particle which produced in nuclear reactor then be shoot into sample atom and then the sample is active and scattered Gamma Ray. Furthermore gamma ray detected by gamma detector. Kind of sample of rice have been studied were planted in city around Pandeglang city that are white rice Sobang, IR 12, IR 64, Cimanuk, Ciherang, Red Rice Huma, Red Rice, Black Sticky Rice Cimanuk, Sticky Rice Serang and Sticky Rice Karang Tanjung. Analysis showed samples contained macro mineral more than 100 mg/Kg, such as K, Ca, Mg, Na, and Cl. Contain of micro minerals in sample were in between 0.2 < x >30 mg/Kg : Zn, Cr, Co Br, Rb and Mn. Surprisingly all of those kind of rice have contained other mineral that not include in macro or micro minerals category such as Al, Cs and La in massive amount more than 5 mg/Kg. These minerals are literally not needed in human consumption and metabolism, it must be take into account into serious attention because of its toxicity. Evaluation of these elements is compared to sufficiency value of daily requirement RDA (Recommended Daily Acceptable). Among the concerns is the high content of many kind of metals in colored rice , especially Black Sticky Rice Cimanuk meanwhile for white rice species relatively contain low concentration of either micro-macro mineral and toxic element. In this study was discussed potential hazards for human while its deficiencies or excessive intake
