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All Journal VALENSI PROSIDING SEMINAR KIMIA Chemistry Indonesian Journal of Chemical Research JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Pengabdian Kepada Masyarakat (Mediteg) Jurnal Ilmiah Berkala: Sains dan Terapan Kimia JURNAL HUTAN TROPIS JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT Jurnal Natural Scientiae
Dahlena Ariyani
Program Studi Kimia Fakultas MIPA Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics Social Sciences

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Macro and Micro Mineral Composition of Haruan Fish (Channa striata) in Banjar District, South Kalimantan Rahmat Yunus; Dahlena Ariyani; Muhammad Aisy
Jurnal Sains dan Terapan Kimia Vol 17, No 1 (2023)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v17i1.12563

Abstract

Minerals have an essential role in the human body. Information about the mineral content of haruan fish in Banjar Regency is very limited. This research aimed to determine the mineral compound of haruan fish originally from ponds in Banjar Regency. Pond-sourced fish samples were processed until they became powders. The ash compound of haruan fish powder was calculated using the gravimetric method. The mineral compound was analyzed using an XRF spectrometer. Wild haruan fish contained 98.85% macro minerals, with the mineral composition of 14.4% P (10.2 mg/kg), 19.9% Ca (19,9 mg/kg), 60.6% K (42.5 mg/kg), and 0.85% S (0.6 mg/kg). Farmed haruan fish contained 94,76% macro minerals, consisting of 15.6% P (12.9 mg/kg), 17.2% Ca (14.3 mg/kg), 61.1% K (50.8 mg/kg), and 0.86% S (0.7 mg/kg). Wild haruan contained 3.51% micro minerals, consisting of 4.44% Fe (3.7 mg/kg), 0.10% Cu (0.08 mg/kg), and 0.22% Zn (0.18 mg/kg). Farmed haruan contained 4.76% micro minerals, consisting of 4.44% Fe (3.7 mg/kg), 0.10% Cu (0.08 mg/kg), and 0.22% Zn (0.18 mg/kg). Wild haruan fish contained 0.56% trace element, 0.46% Rb (0.32 mg/kg), and 0.1% Re (0.07 mg/kg). Farmed haruan fish contained 0.42% trace element, 0.34% Rb (0.28 mg/kg), and 0.08% Re (0.06 mg/kg).
Syntesis of Glutardehide Crosslinked Superporous Chitosan with Polyphynil Alcohol Addition for Peat Water Humic Acid Absorption Dahlena Ariyani; Uripto T Santoso; Radna Nurmasari; Utami Irawati; Iriansyah Iriansyah
Journal of Wetlands Environmental Management Vol 3, No 2 (2015): July-December
Publisher : Center for Journal Management and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2583.773 KB) | DOI: 10.20527/jwem.v3i2.19

Abstract

This research aims to synthezise the superporous adsorbent from chitosan using glutaraldehyde as a cross linker, NaHCO3 as a porogen, and polyvinyl alcohol (PVA) as a reinforcing agent. Generally, the reaction of adsorbent synthesis was carried out through four steps: (1) the addition of PVA to the chitosan solution, (2) the addition of porogen, (3) the crosslinking of chitosan, and (4) the releasing of porogen. The obtained adsorbents were characterized by Fourier Transform Infra Red (FTIR) Spectroscopy, photograph of Digital Microscope (DM), and Scanning Electron Microscopy (SEM) to measure the porosity. The adsorbent was then be applied to adsorb of HA for adsorption capacity determination. The results showed that the addition of PVA and porogen during adsorbent synthesis has produced adsorbent with more compact and flexible physical properties and greater porosity. The adsorption test showed that the adsorption capacity of KPG is 33.07 mg/g. However, if the amount of used adsorbent is larger (based on the chitosan mass 1 g), the capacity adsorption of KPG is 141.74 mg/g. The initial concentration of HA contained in peat water was 45.64 mg/L, KPG can adsorb of HA as much as 95%.
Chemical Preliminary Evaluation of leaves, Peels, and Fleshs Fruit of Limau Kuit: Local Orange of South Kalimantan Azidi Irwan; Kamilia Mustikasari; Dahlena Ariyani
Jurnal Sains dan Terapan Kimia Vol 11, No 2 (2017)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v11i2.4040

Abstract

This research was conducted to know about fruit of limau kuit from South Kalimantan which includes weight, diemeter of fruit, volume of fruit juice, water content, and ash content of its flesh as well as water and ash content on leaves and fruit peel. Chemical preliminary examination includes measurement of pH of fruits juice and phytochemical screening test on leaves, fruit peel, and fruit flesh. The result is obtained with mean value as follows: weight 154,82 g, diameter of fruit 68,45 mm, volume of juice water 44,60 ml, water content of fruit flesh 67,16%, water content of fruit peel 65,67%, leaf water content 65,88%, ash content 0,72%, fruit ash content 1,39%, and leaf ash content 3,32%. Measurement of pH of fruit juice without dilution; 100x; 1000x; and 10000x dilutions showing a value of 1.62; 2.08; 2.68; and 3.33, respectively. The results of the phytochemical examination on fresh samples of leaves, fruit peels, and fruit juices showed all samples giving positive (+) test results against alkaloids, saponins, steroids, triterpenoids (except negative (-) for fruit skin samples), tannins, and flavonoids (except (-) for the juice of the fruit). While the samples with the fresh-dried treatment extracted each using ethanol and n-hexane solvents showed (+) results for all sample extracts in both fresh-dried treatments, except (-) saponins in dried leaves (ethanol extract) and fruit peels fresh (n-hexane extract). Tannin test for fresh leaf (n-hexane) and flavonoid for fresh leaves (ethanol extract) and fresh fruit peel (ethanol extract) showed negative results.Keywords: Limau kuit, South Kalimantan, chemical preliminary test, phytochemical test, ethanol extract, n-hexane extract.
Analisis Kandungan Silika Hasil Ekstraksi Pada Padi Siam Mutiara Kalimantan Selatan Dwi Rasy Mujiyanti; Dahlena Ariyani; Rizky Pradana Nugroho Elyasat
Jurnal Natural Scientiae Vol 2, No 2 (2022): November 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v2i2.6625

Abstract

Analisis kandungan silika hasil ekstraksi merupakan limbah kulit padi Banjar varietas “Siam Mutiara”. Analisis dilakukan agar memperoleh informasi saintifik tentang efektifitas variasi dalam konsentrasi Natrium Hidroksida bagi kemurnian silika beserta produk pengarakteran menurut (FTIR) Fourier Transform Infrared Spectroscopy dan (XRF) X-Ray Fluoresence. Teknik pengujian akan dilaksanakan dengan memanfaatkan kulit padi pada kawasan Desa Puntik Tengah, Kec.Mandastana, Kab.Barito Kuala, Kalimantan Selatan dengan melewati proses pembakaransekam padi pada suhu 200oC berlangsung dalam waktu 60 menit yang diteruskan dengantemperatur 600oC berlangsung dalam waktu 240 menit untuk membuat abu dari kulit padi Siam Mutiara dengan corak keabuan putih memiliki hasil abu sebesar 25,49%. Selanjutnya dilakukan metode ekstraksi menggunakan berbagai jenis kadar Natrium Hidroksida 1,0 M; 1,5 M; 2,0 M; 2,5 M; 3,0 M dengan produk ekstraksi silika yang paling menonjol pada konsentrasi NaOH 3,0 M yakni 7,6767 gram dengan 76,767%. Selanjutnya produk karakteristik pengenalan gugus fungsi menggunakan FTIR membuktikan sepenuhnya abu dengan silika pada kulit padi Siam Mutiara mempunyai kelompok yang paling menonjol yakni gugus silanol (Si-OH) dan siloksan (Si-O-Si), sementara itu karakteristik bahan penyusun berdasarkan XRF senyawa silika menghasilkan kadar yang paling tinggi adalah 42,2% yang dihasilkan pada konsentrasi NaOH 1,0 M.
PEMBUATAN HAND SANITIZER ALAMI DI DESA CEMPAKA BARU KOTA BANJARBARU Komari, Noer; Dwi Rasy Mujiyanti; Dewi Umaningrum; Dahlena Ariyani
Jurnal Pengabdian Kepada Masyarakat (MEDITEG) Vol. 6 No. 1 (2021): Jurnal Pengabdian Kepada Masyarakat (MEDITEG)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Tanah Laut (Politala)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/mediteg.v6i1.81

Abstract

The spread of Covid-19 was out of control and spread throughout Indonesia, including Banjarbaru which had a red zone. Desa Cempaka Baru Kota Banjarbaru is a transmigration settlement that is still safe against Covid-19. Even though it is safe, the community is quite at high risk of contracting it. People are required to comply with health protocols, especially cleaning their hands, including using a hand sanitizer. The demand for hand sanitizers in the market is increasing and the price is also rising, so an alternative is needed to make your own hand sanitizer. The aim of the activity is to educate village communities to make hand sanitizers by utilizing materials around their environment. The activity stages include socialization, implementation of making hand sanitizers, and evaluation. Assistance in the form of hand sanitizer products, hand washing stations, and banners advising the prevention of Covid-19 transmission were also provided to the public. The process of making hand sanitizers was demonstrated by students who helped with activities and involved 15 women who were members of the “Sasirangan Working Group”. The service product is a natural hand sanitizer made from lemongrass and betel leaves. The community was very enthusiastic about participating in this activity and promised to make their own later.
Pengaruh Penambahan Carboxymethyl Cellulose Terhadap Karakteristik Bioplastik Dari Pati Ubi Nagara (Ipomoea batatas L.) Puryati Ningsih, Erni; Ariyani, Dahlena; Sunardi, Sunardi
Indonesian Journal of Chemical Research Vol 7 No 1 (2019): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2019.7-sun

Abstract

Synthesis and characterization of bioplastics from Nagara sweet potatoes (Ipomoea batatas L) starch with carboxymethyl cellulose (CMC) as a filler has been conducted. The purpose of this study was to evaluate the effects of CMC addition on the characteristic of bioplastics from Nagara sweet potato (Ipomoea batatas L) starch. Bioplastic synthesis was carried out by the melt intercalation method with variations in the amount of CMC 0-30% (w/w). Bioplastics were analyzed using FTIR spectrophotometer, thickness, solubility, water resistance, water vapor transmission rate, tensile strength and elongation. The values of the tensile strength of the bioplastic produced increases with increasing of CMC. The results also showed that the optimum CMC concentration in bioplastics production is 9% (w/w) with a tensile strength value 0.5281 N/mm2.
Pengaruh Waktu Reaksi Terhadap Viskositas Dan Densitas Tetraetil Ortosilikat Dari Silika Abu Sekam Padi Mujiyanti, Dwi Rasy; Nisa, Hayatun; Rosyidah, Kholifatu; Ariyani, Dahlena; Abdullah, Abdullah
Indonesian Journal of Chemical Research Vol 8 No 1 (2020): Edisi Bulan Mei (Edition for May)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2020.8-dwi

Abstract

Tetraethyl Ortosylicate (TEOS) is a material is widely used in industrial fields. One source of silica (SiO2) is rice husk ash. In this study was determined the effect of reaction time on viscosity and density in making TEOS from silica rice husk. Silica resulting from the purification of rice husk ash is used in the TEOS manufacturing process by examining the variation of reaction time. One mole of ethanol and 0.25 mole of silica powder were added into 250 ml of round bottom flask followed by the addition of 1 gram of CuO/Al2O3 catalyst then the mixture was refluxed for 30, 35, 40, 45 and 50 hours with sufficient stirring and a temperature of 90 °C. The FTIR characterization results show that there are three main functional groups, namely the -OH, Si-O and C-O groups in the five TEOS synthesis results. Wavenumbers of the –OH functional groups obtained ranged from 3349 cm-1 - 3315 cm-1; Si-O functional groups range from 813 cm-1 - 606 cm-1 and C-O functional groups range from 1105 cm-1 - 1040 cm-1. Reaction time has no significant effect on viscosity. Reaction time has no significant effect on the density and density of the resulting TEOS.
Silica Content Analysis of Rice Husks Siam Unus from South Kalimantan Mujiyanti, Dwi Rasy; Ariyani, Dahlena; Lisa, Muna
Indonesian Journal of Chemical Research Vol 9 No 2 (2021): Edition for September 2021
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2021.9-muj

Abstract

Research on the analysis of rice husk content of Siam Unus with various NaOH concentrations (1.0 M; 1.5 M; 2.0 M; 2.5 M; 3.0 M) has been done. This study aims to obtain data on the effect of variations in NaOH concentration on the purity of the silica extract from Siam Unus rice husks and silica characterization of Siam Unus rice husks using Fourier Transform Infra-Red (FTIR) and X-ray fluorescence spectrometry (XRF). The results showed that the combustion of rice husks at 200 °C as the optimum temperature for 1 hour followed by combustion at 600 °C for 4 hours produces grayish-white rice husks with a yield is 20.70%. Silica functional group characterization showed that silanol (Si-OH) and siloxane (Si-O-Si) as dominant functional groups. The result of composition characterization using XRF showed that SiO2 is the dominant compound with the highest percentage of SiO2 is 1.5 M NaOH extract at 42.80%.
Study Effect of Chitosan-Epichlorohydrin Macropore Beads on Decreasing the Value of Total Dissolved Solid (TDS) and Dyes in Sasirangan Liquid Waste Treatment Ariyani, Dahlena; Hilma, Nabila Khairiyatul; Utami, Umi Baroroh Lili; Santoso, Uripto Trisno; Mujiyanti, Dwi Rasy
Indonesian Journal of Chemical Research Vol 11 No 1 (2023): Edition for May 2023
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2023.11-muj

Abstract

Sasirangan liquid waste contains contaminants that are quite dangerous, characterized by high values of total dissolved solids and dyestuffs. This study aims to determine the effect of dose and pH on chitosan-epichlorohydrin macropore beads. The parameters of the measured waste are total dissolved solids and dyestuffs. The process of absorption of sasirangan liquid waste characterizes by FTIR. The results showed that chitosan-epichlorohydrin beads that interacted with sasirangan liquid waste had optimum results at a chitosan dose of 600 mL/L, with a decrease in the total value of dissolved solid by 2161 mg/L and a decrease in dye by 84.78%. Chitosan-epichlorohydrin beads at pH against total dissolved solid gave optimum results at pH 7 with a reduction in the total dissolved solid value of 2269 mg/L, while pH against dyestuffs gave optimum results at pH 3 with a decrease of 94.09%. The interaction between chitosan and chitosan-epichlorohydrin beads occurred a shift in wave numbers from 943 cm-1 to 932 cm-1 showing the C-O-C group and the chitosan-epichlorohydrin beads spectra with waste at wave numbers 3013-3618 cm-1 to 3007-3631 cm-1 the O-H vibration group overlapped the N-H vibration and showed the result that the beads Chitosan-epichlorohydrin/adsorb sasirangan liquid waste.
Synthesis And Characterization Of Acid-Activated Sago Dregs Biochar And Testing Its Ability As An Adsorbent For Rhodamine B Dyes Ariyani, Dahlena
Jurnal Sains dan Terapan Kimia Vol 19, No 1 (2025)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v19i1.21804

Abstract

Synthesis & characterization of acid-activated sago pulp biochar as an adsorbent of rhodamine B dye has been carried out. This study aims to synthesize & characterize sago pulp biochar activated with HCl 1 M & H3PO4 0,214 M solutions & to assess its ability as an adsorbent of rhodamine B dye. This biochar is produced through a pyrolysis method with a combustion temperature of 700 °C for 2 hours. The results of the pyrolysis biochar were then activated with HCl 1 M & H3PO4 0,214 M acid solvents & then analyzed the effect of contact time, pH, & initial concentration on its ability to adsorb rhodamine B dye. Characterization using Fourier Infrared (FTIR) showed the presence of alkene groups & aromatic groups (C=C) & bonds (CO) & (CC) which play an important role in the adsorption process. The results of the water content of BAS, BAS/HCl & BAS/H3PO4 produced were 2.57%, 4.47% & 5.06% which met the requirements of SNI 06-3730-1995. The results of the surface area test showed BAS/H3PO4 with the largest surface area of 0,520 m2/g & BAS of 0,452 m2/g while the smallest surface area was BAS/HCl of 0,445 m2/g. The study of the effect of pH & contact time on the adsorption capacity of rhodamine B showed that the optimum adsorption capacity of pure sago pulp biochar (BAS) at neutral pH with a contact time of 15 minutes, BAS/HCl at acidic pH with a contact time of 180 minutes, & BAS/H3PO4 at alkaline pH with a contact time of 60 minutes. Based on the analysis results, the adsorption process of rhodamine B on biochar follows the Langmuir & Freundlich isotherms with maximum adsorption capacities for BAS, BAS/HCl, & BAS/H3PO4 of 4.285 mg/g, 4.834 mg/g, & 3.934 mg/g, respectively.
Co-Authors Abdullah Abdullah Abdullah Abdullah Ahmad Budi Junaidi Azidi Irwan David Hamonangan Simanungkalit Dewi Umaningrum Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Edi Mikrianto Hilma, Nabila Khairiyatul Intan Aprilia Rahayu Iriansyah Iriansyah Iriansyah Iriansyah, Iriansyah Jihan Askia Kamilia Mustikasari Kamilia Mustikasari kholifatu rosyidah Kholifatu Rosyidah Komsatun Fitriana Lisa, Muna Mardi Santoso Maria Dewi Astuti Melissa Melissa Muhammad Aisy Nisa, Hayatun Noer Komari Noor Cahaya Nurmilatina Nurmilatina Nurul Paujiah Puryati Ningsih, Erni Radna Nurmasari Rahmat Yunus Rahmat Yunus Ramlah Syam Ratih Wulandari Rd Indah Nirtha Retno Elya Rohmah Riana Maulana Rizky Pradana Nugroho Elyasat Rodiansono Rodiansono Sunardi Sunardi Taslim Ersam Taslim Ersam Umi Baroroh Lili Utami Uripto T Santoso Uripto T Santoso, Uripto T Uripto Trisno Santoso Utami Irawati Zacky Insan