Article Per Year (5 Year)
p-Index From 2019 - 2024
2.338
P-Index
This Author published in this journals
All Journal VALENSI Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Riset Kimia CHEMPUBLISH JOURNAL JOURNAL ONLINE OF PHYSICS JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Karya Abdi Masyarakat Journal of The Indonesian Society of Integrated Chemistry al Kimiya : Jurnal Ilmu Kimia dan Terapan
Heriyanti Heriyanti
Departement Chemistry, MIPA, Faculty Of Sains And Technology, Universitas Jambi
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Pengaruh Variasi Konsentrasi Alumina Pada Sintesis Nanokomposit Hidroksiapatit/ Alumina dari Udang Papai Menggunakan Metode Hidrotermal Restina Bemis; Heriyanti Heriyanti; Rahmi Rahmi; Ratih Dyah Puspitasari; Datia Imawati
Journal of The Indonesian Society of Integrated Chemistry Vol. 15 No. 1 (2023): Journal of The Indonesian Society of Integrated Chemistry
Publisher : Pendidikan Kimia FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jisic.v15i1.21309

Abstract

Tujuan penelitian untuk mensintesis nanokomposit dan mengkarakterisasi hidroksiapatit dari udang papai dan dikomposit untuk meningkatkan sifat mekanik tanpa mengubah biokompatibilitasnya. Komposit hidroksiapatit menggunakan bahan lain seperti alumina disintesis menggunakan metode hidrotermal dengan variasi konsentrasi 0,025; 0,05 dan 0,075 juta. Komposit HA/Al2O3 dikarakterisasi dengan FTIR, SEM, dan XRD. Hasil FTIR menunjukkan bilangan gelombang. HA/Al2O3 yang disintesis menunjukkan pita O-H yang khas pada kisaran bilangan gelombang 2361-3460cm-1. CO32- pada rentang bilangan gelombang 1380-1500 cm-1. Al-O pada rentang bilangan gelombang 901cm-1 menunjukkan bahwa HA telah didoping dengan Al2O3. PO43- pada bilangan gelombang 605;873 dan 1041 cm-1. Pola difraktogram menentukan bahwa semua puncak HA/Al2O3 yang diamati berada pada daerah 2theta 10-70° menurut database referensi dan derajat kristalinitas meningkat dengan konsentrasi tinggi alumina yang digunakan. Morfologi doping HA/Al2O3 berupa aglomerasi karena pada proses sintesis menggunakan metode hidrotermal tidak ada pengadukan sehingga bahan kurang homogen, analisis SEM menggunakan software origin dan image j menunjukkan presentase porositas lebih kecil sehingga memenuhi persyaratan untuk digunakan sebagai implan dan memberikan nilai ukuran semakin kecil dalam skala nano, yakni pada rentang 5-14,5 nm.
Pengembangan Ekonomi Kreatif Masyarakat melalui Pengolahan Limbah Kulit Kopi Liberika di Desa Jatimulyo: The Development of Economy Creative through Liberica Coffee Waste Processing in Jatimulyo Village Madyawati Latief; Heriyanti Heriyanti; Indra Lasmana Tarigan; Restina Bemis; Ratih Dyah Puspitasari
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 9 No. 3 (2024): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v9i3.5562

Abstract

Coffee pulp is a by-product of coffee cherry processing. It has the potential to be used as a source of antioxidant activity. The dried coffee pulp is commonly referred to as cascara tea, which can be used as a functional drink. The coffee pulp contains caffeine, phenols, and chlorogenic acid that has antioxidant activity. Cascara tea can be fermented into kombucha as a functional drink that contains probiotics. In Jatimulyo Village, coffee cultivation and processing have been developed, but coffee skin waste is not used. Seeing the potential for processing coffee pulp waste into cascara and kombucha cascara tea products can provide added value (value added) to coffee pulp waste. The existence of added value to a product can increase the selling price in the market. The processing of coffee pulp waste into a product that is useful and has a sale value can be used as an effort to develop a creative economy. The results achieved from this activity are increasing the knowledge and skills of Jati Mulyo Village residents in utilizing coffee pulp waste into food products that are useful and have economic selling value.
The Effect of Variations of Hydrothermal Temperatures on Ex-Situ Hydroxyapatite/Al2O3 Doping Process from Papai Shrimp (Acetes erythraeus) Restina Bemis; Ratih Dyah Puspitasari; Heriyanti Heriyanti; Rahmi Rahmi; Gessy Tri Priyanti
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol 9, No 2 (2022): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v9i2.20520

Abstract

Hydroxyapatite (HA) is an alloplastic material that is commonly used as a substitute for bone grafts or bone grafts because it has bioactive properties, namely osteoconduction. This study aims to improve or develop the function of hydroxyapatite to become a strong and resilient biological device that can withstand loads for appropriate functions such as bone implants. Therefore, it is necessary to modify the structure, among others, by the reinforcement process (composite formation) with other materials.The doping of hydroxyapatite/Al2O3 in this study was carried out using the hydrothermal method. The hydrothermal method is one of the hydroxyapatite synthesis methods carried out at high pressure and temperature to achieve equilibrium. The material used in this study was papai shrimp as a source of calcium. The temperature has an effect in this study where the higher the doping temperature used, the higher the degree of crystallinity, particle size homogeneity, and porosity value. From the doping results, it is known that a temperature of 300°C produces a degree of crystallinity of 54.32% and a crystal size of 3.75 nm with a porosity value of 99.38%. This result is much better than the undoped hydroxyapatite in the previous study.
Co-Authors Afrida Afrida Aji Wilaksono Andita Utami Andita Utami Anisya Putri Islami Aslan Irunsah Bagas Rimawan Bayu Ishartono Datia Imawati Debby Mutiara Ananda Defia Indah Permatasari Desi Ayundari Faizar Farid Gessy Tri Priyanti Iful Amri Indra Lasmana Tarigan Jesi Pebralia Kevin Naoki Davidson Linda Handayani Madyawati Latief Mardian Peslinof Mudinillah, Adam Nafisah Amri Nashih Ulwan Ngatijo Ngatijo Nindita Clourisa Amaris Susanto Rahmat Basuki Rahmi Rahmi Rahmi Rahmi Rahmi Rahmi Ratih Dyah Puspitasari Rayandra Asyhar Restina Bemis Restina Bemis Rustan Samsidar Samsidar Sri Febriani Sutrisno Sutrisno Sutrisno Wibowo, Yudha Gusti Winda Arinda Putri Winda Mustika Sari