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Research on the acute toxicity of LD50 had been carried out on the ethyl acetate fraction of Gaharu leaves (Aquilaria malaccensis), beringin leaves (Ficus benjamina), sembung rambat leaves (Mikania micrantha), and kayu manis cortex (Cinnamomum burmanii) water fraction the base of use as traditional treatment by the Suku Anak Dalam (SAD) empirically obtained from ancestors. This research methodwas experimental and it used male and female mice. The control group was given a 1% NaCMC doses of 625 mg/kg body weight, 1,250 mg/kg body weight, 2,500 mg/kg body weight, and 5,000 mg/kg body weight. The test preparation was administered orally once per day. The Thomson-Weil method was used for the measurement of LD50 values. The weight ratio of organs was applied for heart, liver, lungs, kidneys, and stomach. The results showed that the LD50 value for male mice was 2454mg/kg body weight; 2454mg/kg body weight; 1546 mg/kg body weight and 2065mg/kg body weight respectfully. The LD50 value for female mice was a pseudo LD50. The value of the organ weight ratio in each sample showed P<0.05 values that were obtained in gaharu leaves in the liver and kidney organs (male); heart in females. Beringin leaves value P<0.05 lung organs (male). Sembung rambat leaves P<0.05 values of the heart, liver, and stomach organs (male); heart and stomach (female). Cinnamomum cortex value P<0.05 liver and stomach organs (male). The conclusions showed that the LD50 value of the ethyl acetate fraction of gaharu leaf, sembung rambat leaf, beringin leaf, and kayu manis cortex in male mice was slightly toxic, while in female mice it could not be counted.

Tulang ikan tenggiri (Scomberomorus guttatus) merupakan suatu bentuk sisa dari pengolahan ikan yang belum banyak dimanfaatkan, dimana tulang ikan memiliki kandungan kalsium dan fosfor. Tulang ikan dapat dibuat biomaterial hidroksiapatit. Hidroksiapatit banyak diaplikasikan untuk implan tulang dan gigi. Tujuan penelitian ini untuk mengetahui pembuatan hidroksiapatit dari tulang ikan tenggiri (Scomberomorus guttatus) dengan metode sol-gel. Tulang ikan direndam menggunakan NaOH dan aseton lalu furnace suhu 8000C selama 3 jam untuk mendapatkan bubuk CaO. CaO ditambahkan HCl hingga didapatkan endapan. Endapan ditambahkan etanol dan H3PO4 sampai terbentuk gel yang kemudian dioven dan di furnace pada suhu 6000C, 7000C dan 8000C. Bubuk yang didapat diperiksa dengan Difraksi Sinar-X, Mikroskopi pemindaian elektron dan pemeriksaan ukuran partikel. Hasil difraksi Sinar-X pada suhu 6000C didapatkan senyawa hidroksiapatit yang sesuai dengan standar ICSD no 01-074-9780 dimana intensitas tinggi terletak pada sudut 2Ɵ 32,84o; 31,53o; 25,86o; dan 27,95o dengan bentuk kristal heksagonal. Pada suhu 7000C didapatkan senyawa tricalcium bis ortophosphate dan suhu 8000C senyawa β-TCP dengan bentuk rombohedral. Morfologi berupa bongkahan dengan pembesaran 150x. Hasil analisa PSA didapat ukuran partikel 1,394 µm. Kesimpulan penelitian ini tulang ikan tenggiri dapat dijadikan sebagai sumber kalsium pada pembuatan hidroksiapatit pada suhu 600oC.Mackerel fish bones (Scomberomorus guttatus) is a residual form of fish processing that has not been widely used, where fish bones contain calcium and phosphorus. Fishbones can be made of hydroxyapatite biomaterial. Hydroxyapatite is widely applied for bone and dental implants. The purpose of this study was to determine the production of hydroxyapatite from mackerel fish bones (Scomberomorus guttatus) using the sol-gel method. Fishbones were soaked using NaOH and acetone and then furnace at 800oC for 3 hours to get CaO powder. CaO is added with HCl u