NIKE NATALINDA NOMTANIS Pengarang Dr. Radempta Wea, S.Pt., MP Dosen Pembimbing 1 Ir. Bachtaruddin Badewi, M.Si Dosen Pembimbing 2 Asrul, S.Pd., M.Si Penguji 2 Abner Tonu Lema, S.Si., M.Si Penguji 1 Dr. Redempta Wea, S. Pt., MP Penguji 1 Ir. Bachtaruddin Badewi, M.Si Penguji 2 AHMAD FADIL Contributor

The study aims to examine the effects of nutritional hydrogen quality treatment tamarind seeds using sugar borassus flabellifer different fermentation time against the mineral content of calcium, Phosphors, and Magnesium. Research is ongoing for three months from July to September 2020 in the Laboratory Nutrition and animal feed, Kupamg State Agricultural Polytechnic. Research using a completely randomized design (CRD), which consists of four (4) treatment anda five (5) replications. The treatments of this research were : R0 : acid seeds, sugar borassus flabellifer 10% without fermentation (control), R1 : fermented tamarind seed + 10% sugar borassus flabellifer for five days, R2 : Tamarind seeds 10% sugar borassus flabellifer fermented for 10 days, R3 : Tamarind seeds 10% sugar borassus flabellifer fermented for 15 days. Research variables, namely minerals Ca, P, and Mg. The result showed that the fermentation time of the beas acid using sugar borassus flabellife had a very significant effect (P<0,05) on Ca and P levels while Mg levels had no significan effect (P>0.05). Based on the research, it was concluded that the effeects of fermentation time was long using sugar borassus flabellifer 10% against the best mineral conten of of Ca, P, and Mg treatment R3 is the 15th day