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All Journal VALENSI BULETIN OSEANOGRAFI MARINA Journal of Degraded and Mining Lands Management Jurnal Sains Teknologi dan Lingkungan (JSTL) Al-Kimia PROMINE SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal GEOSAPTA IKRA-ITH ABDIMAS Jurnal Pengabdian Kepada Masyarakat (Mediteg) Stannum : Jurnal Sains dan Terapan Kimia Jurnal Sains dan Edukasi Sains Media Bina Ilmiah
Fajar Indah Puspita Sari
Jurusan Kimia, Universitas Bangka Belitung
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Fenolik Total Fraksi Etil Asetat Daun Pelawan (Tristaniopsis merguensis Grifft.) Robby Gus Mahardika; Occa Roanisca; Fajar Indah Puspita Sari
Jurnal Sains dan Edukasi Sains Vol 3 No 1 (2020): Jurnal Sains dan Edukasi Sains
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/juses.v3i1p8-14

Abstract

Ekstrak aseton didapatkan dari daun Tristaniopsis merguensis Grifft menggunakan metode maserasi. Ekstrak aseton selanjutnya difraksinasi dengan metode partisi cair-cair dengan pelarut etil asetat. Penentuan kadar fenolik total dilakukan berdasarkan metode Follin-Ciocalteu dengan standar asam galat. Hasil penelitian ini menunjukkan bahwa fraksi etil asetat dari ekstrak aseton daun Tristaniopsis merguensis mengandung senyawa fenolik total 86,724 ± 1,83 mg GAE/g fraksi etil asetat kering. Berdasarkan spektrum FT-IR fraksi etil asetat ini mengandung senyawa yang memiliki gugus Ar-OH (fenolik), -OH (hidroksil), C=O (keton) dan C=C (aromatik). Gugus Ar-OH ini yang menandakan adanya senyawa fenolik pada fraksi etil asetat ekstrak aseton daun Tristaniopsis merguensis.
PELATIHAN PEMBUATAN SIRUP BUAH NIPAH SEBAGAI PRODUK UNGGULAN DESA SEMPAN KABUPATEN BANGKA Nurhadini Nurhadini; Verry Andre Fabiani; Ristika Oktavia Asriza; Fajar Indah Puspita Sari
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 2, No 2 (2019): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (739.095 KB) | DOI: 10.31604/jpm.v2i2.101-105

Abstract

Sempan Village is one of the villages in Pemali District of Bangka Regency, Bangka Belitung Islands which do not yet have the featured products, while this village has nipah plants that are not used optimally. The nipah fruit can be further processed into a featured product of village i.e. syrup. The service program Chemistry Department is training Sempan Village society on the manufacture of syrup from nipah fruit. The method of this activity includes three stages i.e. preparation, implementation and evaluation. After this activity is carried out, the Sempan Village society have increased understanding, knowledge and motivation in utilizing nipah fruit into processed syrup products and this product is expected become one of the featured products of Sempan VillageKeywords: nipah fruit, syrup, Sempan Village
KARAKTERISASI MINERAL DAN GEOKIMIA TAILING TAMBANG TIMAH PULAU BANGKA BAGIAN UTARA Delita Ega Andini; Fajar Indah Puspita Sari
Geosapta Vol 6, No 2 (2020): Juli 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jg.v6i2.7162

Abstract

Tailings in this study are the result of Jigs washing in the mining process. This 'mining waste' interesting to study because there is no information that explains the relationship between mineral content and geochemistry so that it has not been widely used. The method used to determine the mineral and geochemical characteristics of tailings is X-ray spectroscopy using XRD and XRF. The mineral found in the tin mine tailings on northern Bangka Island (Pemali, Jebus, Tempilang, and Mapur) is quartz and kaolinite. The trace element shows main Rare Earth Elements (REE) Ce, La, Nd, Sm, Ta, and Y with various concentrations. Radioactive elements are found: Uranium and Yttrium. They are thought to originate from type I granite rocks with acid-to-moderate magma-forming compositions. The affinity of magma forming granite tailings studied was High K Calc Alkaline and Calc-Alkaline. This explains the presence of REE and the radioactive elements in tailings even though they are not present in carrier minerals such as monazite and xenotime.
Identifikasi Potensi Acid Rock Drainage Pada Tambang Timah di Pulau Bangka Delita Ega Andini; Fajar Indah Puspita Sari
PROMINE Vol 8 No 2 (2020): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v8i2.2136

Abstract

Bangka Belitung is one of the tin-producing areas in the world which is characterized by the large number of granite rocks in the area as the rock carrying cassiterite minerals. Granite rocks found on Bangka Island are rocks formed due to magma activity from acidic volcanic processes. The availability of acidic water is possible due to the presence of acid-carrying minerals from granite which causes acid rock drainage or acid rock water which generally occurs in mining areas, ex-mining and exploration in tin mines. Before making efforts to prevent environmental pollution, identification is needed regarding the potential acidity of the rock so that the pH and dissolved metal content that endangers survival can be prevented to a minimum.
Total Phenolic and Antioxidant Capacity of Acetone Extract of Tristaniopsis merguensis Leaves Occa Roanisca; Robby Gus Mahardika; Fajar Indah Puspita Sari
Stannum : Jurnal Sains dan Terapan Kimia Vol 1 No 1 (2019): Oktober
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.637 KB) | DOI: 10.33019/jstk.v1i1.1274

Abstract

The purpose of this study was to determine the total phenolic and antioxidant capacity of Tristaniopsis merguensis leaf acetone extract. In this study extraction using the maceration method for 3 days with a ratio of dry leaves and solvents of 1: 10 (w / v). Analysis of total polyphenols in this study was carried out using the Follin-Ciocalteu method. Total polyphenols were measured based on gallic acid standards. The antioxidant capacity is calculated based on the DPPH method. The results of this study, obtained extract yield of 9.34%. The total phenolic content of the Tristaniopsis merguensis leaf acetone extract was 215.22 mg GAE / g DW. While the antioxidant capacity of the acetone extract has an IC50 value of 22,1454 µg / mL.
FORMULASI SEDIAAN GEL HAND SaNITIZER DARI EKSTRAK DAUN PUCUK IDING-IDING (Stenochlaena palustris) sebagai antiseptik alami Fahmi Rizal; Verry Andre Fabiani; Fajar Indah Puspitasari; Ristika Oktavia Asriza
Media Bina Ilmiah Vol. 19 No. 11: Juni 2025
Publisher : LPSDI Bina Patria

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of local plants in the Bangka Belitung islands, such as shoots of idat (Cratoxylum glaucum), pelawan (Tristaniopsis spp) and shoots of iding-iding (Stenochlaena palustris) has been practiced by local people for a long time as medicinal plants and vegetables. The three plants are natural ingredients that have been studied and contain very high antioxidant and antibacterial compounds. Iding-iding shoots (Stenochlaena palustris) have antimicrobial uses but their use as antiseptics has not been carried out. Iding-iding shoots have been studied to contain many flavonoids, polyphenols, hydroxycinnamic acid and anthrocyanins. In this study, the formulation of hand sanitizer gel preparations from iding-iding leaf extract (Stenochlaena palustris) as a natural antiseptic with varying concentrations in inhibiting the growth of Escherichia coli and Staphylococcus aureus will be carried out in this study. So far, there has been no research using iding-iding leaf extract (Stenochlaena palustris) in hand sanitizer gel preparations. The results showed that the leaf extract of iding-iding shoots had excellent bacterial inhibition at a concentration of 5% on E.Coli and S.Aureus bacteria.
Co-Authors Adi Syahputra Adibrata, Sudirman Adisyahputra, Adisyahputra Amelia, Ririn Andriyadi Andriyadi Budi Harto Delita Ega Andini Deni Pratama Fahmi Rizal Ismed Inonu Nanda Nusantary Suwardih Nurhadini Nurhadini Revy Safitri Ririn Amelia Ristika Oktavia Asriza Roanisca, Occa Robby Gus Mahardika Verry Andre Fabiani