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All Journal Jurnal Kimia Mulawarman Al-Kimia Chimica et Natura Acta
Titik Andriani, Titik
Institut Teknologi Sepuluh Nopember, Surabaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science Materials Science & Nanotechnology

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Characterization of Hydroxyapatite of Chicken Eggshells Composite with Gelatin as Methylene Blue Absorbent Nurfadillah; Ramadani, Kurnia; Firnanelty; Chadijah, Sitti; Aisyah, Aisyah; Ilyas, Asriani; Nur, Arfiani; Adawiah, Syarifah Rabiatul; Andriani, Titik
Al-Kimia Vol 11 No 2 (2023): DESEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i2.40781

Abstract

Chicken egg shells contain an inorganic element (CaCO3) which has potency to be a source of calcium hydroxide (Ca(OH)2) which is then reacted with diammonium hydrogen phosphate ((NH4)2HPO4) as a phosphate precursor for hydroxyapatite synthesis. This study aims to determine the characterization of hydroxyapatite from eggshells and determine the absorbability of hydroxyapatite-gelatin composites against methylene blue. Synthesis of hydroxyapatite used precipitation method. The calcination results obtained calcium hydroxide (Ca(OH)2) content in the shell of 68.3%. Analysis of hydroxyapatite with Fourier Tranform Infra-Red (FT-IR) there was a wavenumber of 3434 cm-1 perform hydroxyl groups (-OH-), 1421 cm-1 carbonate groups (-CO3-2) and 1035 cm-1, 604 cm-1, 471 cm-1 phosphate groups (-PO4-2), and analysis by x-ray diffraction revealed that pure hydroxyapatite crystals had formed at an angle of 2Ɵ = 34,08 with crystallinity of 100%. The peaks that appear on the XRD diffractogram are adjusted to the Joint Committee on Power Diffraction Standards (JCPDS) No. 09-0432. The synthesis of HAp-gelatin composites obtained typical groups such as, amine groups from gelatin and phosphate groups and carbonates from Hap. The results of methylene blue absorption using hydroxyapatite-gelatin composites have obtained optimum conditions at a ratio of 2: 4 for 240 minutes with an efficiency of 63%. Based on these data, it reveals that the longer the time given, the greater the methylene blue absorbed
Formulasi Sediaan Hair Tonic dari Kombinasi Ekstrak Etanol Daun Sirsak (Annona Muricata L.) Dan Ekstrak Lidah Buaya (Aloe vera) Sjamsiah, Sjamsiah; Andriani, Titik; Irmawati, Ekha; Ramadani, Kurnia
Chimica et Natura Acta Vol 12, No 3 (2024)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v12.n3.49604

Abstract

Sediaan penumbuh rambut alami telah menjadi pilihan paling populer karena diolah dari berbagai bahan alami dan mempunyai banyak manfaat dan efek samping yang relatif kecil. Tanaman obat seperti daun sirsak dan lidah buaya merupakan bahan-bahan alami yang dapat digunakan dalam pembuatan sediaan tonik rambut alami. Tujuan penelitian ini adalah untuk mengidentifikasi karakteristik tonik rambut dari berbagai ekstrak dan untuk mengetahui pengaruh ekstrak tonik rambut kombinasi ekstrak daun sirsak lidah buaya terhadap efektivitas pertumbuhan rambut pada hewan uji kelinci dengan menggunakan metode uji organoleptik, homogenitas, uji pH, uji berat jenis, uji viskositas dan uji ANOVA. Hasil penelitian menunjukkan bahwa karakteristik tonik rambut daun sirsak dan lidah buaya berwarna ‘dark olive’ dan bening, berbau khas ekstrak daun sirsak, cair, dan memiliki rasa sejuk pada kulit. Memiliki pH 5-6 dengan berat dosis berkisar antara 0,9519-0,9777 gr/cm3 dan viskositas 0,81-1,11 cPs. Tonik rambut juga memiliki efektivitas yang cukup pada pertumbuhan rambut pada kelinci, di mana persiapan terbaik ditemukan dalam persiapan F2, rasio kombinasi ekstrak adalah 2:1 dengan panjang pertumbuhan rambut rata-rata 0,93 cm.
Potential of Cow Bone as a Basic Material for Hydroxyapatite-High Density Polyethylene Composites (HAp-HDPE) Ramadani, Kurnia; Rismawati, Rismawati; Ismail, Ismail; Andriani, Titik
JURNAL KIMIA MULAWARMAN Vol 22 No 1 (2024)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v22i1.1363

Abstract

Cow bone has the potential to be used as a basic ingredient in the synthesis of hydroyapatite because it contains calcium. The addition of High Density Polyethylene (HDPE) to hydroyapatite aims to produce biocomposites that have better properties compared to the previous properties. The purpose of this study is to determine the characteristics of biocomposites with the HDPE:HAp in the ratio of 1: 2, 2: 1 and 3: 2 (%w / w). The method used is the sol-gel method and characterized by FTIR to see the bonding of functional groups and electron microscope to see the morphology of biocomposites. The biocomposites that have the best mechanical properties in this study are biocomposites with a ratio (HDPE: HAp) of 3: 2 with compressive and tensile strength values of 0.66 and 0.1290 N / mm2, density and water absorption values of 0.505 g / cm3 and 6,828% respectively and heat resistance with a temperature of 110 ° C experiencing a mass decrease of 0,675 g.
Co-Authors Aisyah Aisyah Arfiani Nur Asriani Ilyas Firnanelty, Firnanelty Irmawati, Ekha Ismail Ismail Kurnia Ramadani Nurfadillah Ramadani, Kurnia Rismawati Rismawati Sitti Chadijah Sjamsiah, Sjamsiah Syarifah Rabiatul Adawiah, Syarifah Rabiatul