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All Journal Natural Science: Journal of Science and Technology Agroland : Jurnal Ilmu-Ilmu Pertanian MEDIA LITBANG SULTENG KOVALEN: Jurnal Riset Kimia Jurnal Teknologi Agro-Industri SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Fullerene Journal of Chemistry Sewagati Jurnal Ilmiah Nusantara al Kimiya : Jurnal Ilmu Kimia dan Terapan
Nurhaeni Nurhaeni
Department Of Chemistry, Faculty Of Mathematics And Science, Tadulako University
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Pemanfaatan Minyak Biji Kelor (Moringa oleifera L.) pada Pembuatan Sabun Padat Transparan: Utilization of Moringa Seed Oil (Moringa oleifera L.) in Making Transparent Solid Soap Hardiyanti, Putri; Nurhaeni, Nurhaeni; Hardi, Jaya
Jurnal Teknologi Agro-Industri Vol. 9 No. 2 (2022): Jurnal Teknologi Agro-Industri
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat, Politeknik Negeri Tanah Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/jtai.v9i2.156

Abstract

Moringa seed oil is rich in oleic acid which has benefits for treating skin health. The use of Moringa seed oil as a basic ingredient for making transparent solid soap increases the advantages of soap because it has moisturizing and skin softening properties as well as antimicrobial. The manufacture of transparent solid soap based on Moringa seed oil aims to determine the mass of Moringa seed oil which produces solid soap with the highest foam and pH stability values, as well as the level of soap irritation. The study was conducted using a completely randomized design (CRD) with the independent variable being the mass of Moringa seed oil consisting of four levels of 27.5 grams (A1), 30 grams (A2), 32.5 grams (A3), and 35 grams (A4), while the dependent variables include foam stability and pH stability which were determined after 3 weeks of testing. The best formula was further tested with a solid soap irritation level test. The best formula for transparent solid soap was found in using 30 grams of Moringa seed oil (A2) with foam stability of 93.56%, pH stability of 9-9.6, and low irritation level of only 20% after five days of use.
Reduksi Kandungan Zat Aktif Anionik dalam Limbah Laundry dengan Memanfaatkan Kombinasi Zeolit dari Tongkol Jagung dan Pseudomonas aeruginosa: Reduction of Anionic Surfactant Content in Laundry Wastewater by Utilizing a Combination of Zeolite from Corn Cobs and Pseudomonas aeruginosa Nea, Sirah Diniati; Nurhaeni; Puspitasari, Dwi Juli; Prismawiryanti; Inda, Nov Irmawati; Sumarni, Ni Ketut; Ruslan
KOVALEN: Jurnal Riset Kimia Vol. 10 No. 1 (2024): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2024.v10.i1.16982

Abstract

The increasing environmental pollution is one of the consequences of human activities that continue to expand. The environment has limitations in coping with pollutants generated by humans, such as waste from the laundry industry. This research aims to evaluate the combined effect of zeolite produced from corn cobs and the use of microorganisms capable of degrading anionic surfactants, with the goal of reducing the concentration of anionic surfactants in laundry wastewater. The methods used include adsorption using corn cobs as adsorbents and biodegradation using surfactant-degrading bacteria. Morphological observations using Scanning Electron Microscope (SEM) indicate that the produced zeolite has a crystal structure that stacks up like clumps of cubes. X-ray Diffraction (XRD) analysis shows that zeolite synthesized with a silica extraction ratio from corn cobs and sodium aluminate of 20:20 mL has been successfully conducted. The biodegradation process of anionic surfactants in laundry wastewater using a combination of synthesized zeolite and Pseudomonas aeruginosa bacteria employing the Methylene Blue Alkyl Substance (MBAS) method has shown a decrease in concentration to 1.66 mg/L and degradation of 33.55%, especially in sample 3 with variations of 7.5 grams of corn cob zeolite and 15% microorganisms, during a 5-day experiment.
Aplikasi Edible Coating Albedo Semangka dengan Penambahan Ekstrak Etanol Daun Bandotan pada Tomat Napu: Application of Edible Coating of Watermelon Albedo with the Addition of Ethanol Extract of Bandotan Leaves on Napu Tomato Lutfi, Mohammad; Wulandari, Asri; Fito; Rahmadina, Hizra Nur; Chaedar, Nur; Nurhaeni; Amar, Aini Auliana
KOVALEN: Jurnal Riset Kimia Vol. 10 No. 3 (2024): December Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2024.v10.i3.17408

Abstract

One of the causes of food waste is due to the lack of post-harvest handling of fruits or vegetables, therefore, an innovation is needed to overcome this problem, one of which is with edible coating. This study aimed to determine the characteristics of edible coatings from watermelon albedo pectin with the addition of Bandotan leaf extract as an antibacterial against Napu tomatoes. This study used a completely randomized design (CRD) consisting of 4 treatments, namely tomatoes (edible coating), tomatoes (edible coating + 12.5% bandotan leaf ethanol extract), tomatoes (edible coating + 25% bandotan leaf ethanol extract), and tomatoes (edible coating + 50% bandotan leaf ethanol extract). The watermelon albedo pectin characterization test results were the equivalent weight of 558.3 mg, methoxyl content of 6.1%, galacturonic acid content of 32.1%, moisture content of 11.469%, and ash content of 9.378%. From the results of tomato characterization tests for weight loss, moisture content, and microbial tests, the best treatment was produced by tomatoes (edible coating + 50% antibacterial), with consecutive results of 7.90%, 53.18%, 16.6 colonies (10-4 dilution), and 5.6 colonies (10-5 dilution).
Isolation and Characterization of Flavonoid Derivative of Ethyl Acetate Extract from Bauhinia latisiliqua Stem Bark and Its Activity as Antioxidant Sabarwati, Sitti Hadijah; Indriani, Indriani; Nurhaeni, Nurhaeni; Ridhay, Ahmad; Satrimafitrah, Pasjan; Hardi, Jaya; Sikanna, Rismawaty
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol. 10 No. 2 (2023): 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.v10i2.30372

Abstract

Various bioactivities on natural compounds, the antioxidant potency can provide a broad spectrum in their utilization and development into medicinal raw material. One of the plants that have potency for antioxidant activity is the Kemerakan sapenit (Bauhinia latisilqua) plant. The study aimed to isolate, characterize, and determine the antioxidant activity of a compound isolated in the ethyl acetate extract of the stem bark of B. latisilqua. This research includes extraction, fractionation, purification, and elucidation of secondary metabolite structure as well as testing its antioxidant activity. Extraction was carried out by maceration technique, fractionation, and purification using liquid vacuum chromatography and gravitation column chromatography. The elucidation of the structural compound was determined by analysis of the UV, IR, and NMR spectra. The antioxidant test was performed using the DPPH method. Based on the analysis of the spectral data, the isolated compound was catechin, a derivative of flavan-3-ol. Antioxidant test on catechin compound showed a strong antioxidant with an IC50 value of 35.01 µg /mL (IC50 for positive control, ascorbic acid, of 42.94 µg /mL).
Peningkatan kompetensi kimia siswa MAN IC Kota Palu melalui pemanfaatan software Avogadro Firmansyah, Firmansyah; Puspitasari, Dwi Juli; Nurhaeni, Nurhaeni; Sumarni, Ni Ketut; Prismawiryanti, Prismawiryanti
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 1 (2026): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i1.36159

Abstract

AbstrakKegiatan pengabdian kepada masyarakat ini dilatarbelakangi oleh masih rendahnya pemahaman konseptual siswa dalam memvisualisasikan struktur dan geometri molekul pada pembelajaran kimia, yang umumnya bersifat abstrak dan sulit dipahami hanya melalui penjelasan konvensional. Untuk mengatasi permasalahan tersebut, kegiatan ini bertujuan meningkatkan pemahaman dan keterampilan siswa kelas XI Madrasah ‘Aliyah Negeri (MAN) Insan Cendekia Kota Palu melalui pemanfaatan perangkat lunak Avogadro sebagai media pembelajaran berbasis komputer. Mitra sasaran dalam kegiatan ini adalah 40 siswa/siswi kelas XI MAN IC Kota Palu pada tanggal 8 September 2025 yang memiliki minat tinggi terhadap pembelajaran kimia. Metode pelaksanaan mencakup tahapan pengenalan konsep dasar Avogadro, pelatihan penggunaan perangkat lunak, praktik langsung dalam membangun dan menganalisis struktur molekul tiga dimensi, sesi diskusi interaktif, serta evaluasi hasil belajar melalui pre-test dan post-test. Hasil kegiatan menunjukkan adanya peningkatan signifikan pada pemahaman konseptual siswa. Rata-rata nilai meningkat dari 60 menjadi 81,76, dengan peningkatan tertinggi pada aspek pemahaman bentuk molekul (dari 53,33% menjadi 91,67%) dan sudut ikatan (dari 46,67% menjadi 100%). Hasil survei kepuasan menunjukkan respons yang sangat positif, di mana 67,5% siswa menyatakan puas atau sangat puas terhadap kualitas materi, 62,5% puas atau sangat puas terhadap penyampaian narasumber, 70% puas atau sangat puas terhadap kemudahan pembelajaran kimia menggunakan Avogadro, serta 77,5% menyatakan puas atau sangat puas terhadap dukungan pihak sekolah dalam keberlanjutan program. Hasil wawancara dan observasi partisipatif juga menunjukkan meningkatnya keterlibatan aktif dan antusiasme siswa selama kegiatan berlangsung. Temuan ini menunjukkan bahwa pemanfaatan perangkat lunak Avogadro efektif dalam meningkatkan pemahaman konsep, keterampilan praktis, dan literasi digital siswa. Kata kunci: avogadro; kimia visual; pembelajaran berbasis komputer; peningkatan pemahaman konsep. AbstractThis community service activity was motivated by the still low level of students’ conceptual understanding in visualizing molecular structures and geometries in chemistry learning, which are generally abstract and difficult to comprehend through conventional explanations alone. To address this issue, the activity aimed to improve the understanding and skills of eleventh-grade students at Madrasah ‘Aliyah Negeri (MAN) Insan Cendekia Kota Palu through the use of Avogadro software as a computer-based learning medium. The target participants consisted of 40 eleventh-grade students of MAN IC Kota Palu, and the activity was conducted on September 8, 2025, involving students with a strong interest in chemistry learning. The implementation methods included the introduction of basic Avogadro concepts, software usage training, hands-on practice in constructing and analyzing three-dimensional molecular structures, interactive discussion sessions, and evaluation of learning outcomes through pre-tests and post-tests. The results of the activity indicated a significant improvement in students’ conceptual understanding. The average score increased from 60 to 81.76, with the highest improvement observed in molecular shape understanding (from 53.33% to 91.67%) and bond angle comprehension (from 46.67% to 100%). The satisfaction survey results showed a highly positive response, with 67.5% of students stating that they were satisfied or very satisfied with the quality of the materials, 62.5% satisfied or very satisfied with the delivery by the instructors, 70% satisfied or very satisfied with the ease of learning chemistry using Avogadro, and 77.5% satisfied or very satisfied with the school’s support for program sustainability. The results of interviews and participatory observations also revealed increased active engagement and enthusiasm among students throughout the activity. These findings indicate that the utilization of Avogadro software is effective in enhancing students’ conceptual understanding, practical skills, and digital literacy. Keywords: avogadro; visual chemistry; computer-based learning; conceptual understanding improvement.
Analisis Proksimat Pada Bolu Kukus Dari Tepung Biji Durian Elissandra Bange; Irwan Said; Nurhaeni
JURNAL ILMIAH NUSANTARA Vol. 3 No. 1 (2026): Jurnal Ilmiah Nusantara Januari 2026
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jinu.v3i1.7737

Abstract

Steamed sponge cake is a popular traditional snack widely enjoyed by the public. Generally, steamed sponge cake is made from wheat flour, which contains high carbohydrate levels. In this food product, the high carbohydrate content leads to rapid carbohydrate digestion, causing an increase in blood sugar levels, which is not beneficial for health. Therefore, this research formulated durian seed flour and cornstarch in a 50:50 ratio, which was the best formulation from previous organoleptic tests. Durian seeds were processed into durian seed flour, which has a highly beneficial nutritional content for health. The objectives of this study were to determine the carbohydrate, protein, and fat content and to utilize the research results as a learning medium in the form of a poster. In this study, three treatment repetitions were conducted for each test under the same conditions. Carbohydrate content was determined using the UV-VIS spectrophotometry method at a wavelength of 460 nm, protein content was determined using the micro-Kjeldahl method, and fat content was determined using the Soxhlet extraction method. The results obtained in this study showed that the proximate nutritional content of the steamed sponge cake was 44.0102% carbohydrate, 28% protein, and 23.01% fat. With a sufficiently high fiber content, the resulting glycemic index can be categorized as low, thus it can be used to meet the needs of individuals with DMT-2.
Analisis Kadar Kadmium (Cd) dalam Bawang Merah Lokal Palu (Allium cepa L. var. aggregatum) pada Berbagai Lokasi dan Umur Tanam: Analysis of Cadmium (Cd) in Palu Local Shallots (Allium cepa L. var. aggregatum) at Various Locations and Planting Ages Eka Lindawati; Khairuddin Khairuddin; Nurhaeni; Ruslan; Ahmad Ridhay; Husain Sosidi; Erwin Abdul Rahim; Syamsuddin
KOVALEN: Jurnal Riset Kimia Vol. 9 No. 1 (2023): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2023.v9.i1.16287

Abstract

The local Palu shallot (Allium cepa L. var. aggregatum) plant is one of the leading products in the Central Sulawesi region. Shallots can experience a decrease in quality if they are contaminated with heavy metals, such as cadmium (Cd) in amounts that exceed the threshold. This study aims to determine the effect of planting age on cadmium levels in local Palu shallots cultivated in Oloboju Village and Solove Village, Biromaru District, Sigi Regency. The research variables used were the planting age which consisted of 4 levels (age 40, 50, 60, and 70 days), and the planting location which consisted of 2 levels (Solove Village and Oloboju Village). Cd levels were analyzed using an Atomic Absorption Spectrophotometer (AAS). Cadmium levels in shallot roots at two planting locations decreased with increasing planting age, from 101.34 - 107.18 mg/kg at 40 days of age to 1.68-3.78 mg/kg at 70 days of age. Shallot bulbs at two locations had lower cadmium levels than roots, namely 0.01-0.04 mg/kg. The results of the study found that planting time had a significant effect on cadmium levels in the roots of shallots, but planting age and planting location had no significant effect on cadmium levels in local Palu shallot bulbs with levels that met the SNI (Indonesian national standard) quality requirements
Analisis Nutrisi Sereal dari Ampas Kelapa dan Ampas Susu Kedelai: Nutritional Analysis of Cereals from Coconut Pulp and Soy Milk Pulp Nurfita Sari; Ni Ketut Sumarni; Syaiful Bahri; Nurhaeni; Aini Auliana Amar; Syamsuddin; Jusman
KOVALEN: Jurnal Riset Kimia Vol. 9 No. 2 (2023): August Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2023.v9.i2.16437

Abstract

Coconut pulp and soy milk pulp flour can be combined to reduce the use of wheat flour in the manufacture of cereals. The high fiber and protein content of coconut and soy milk pulp will improve the quality of cereals. The aim of this study was to obtain the mass ratio of coconut and soy milk pulp flour which produces cereals with high nutritional value. The ratio of coconut and soy milk pulp flour used was 0:100; 25:75; 50:50; 75:25; and 100:0 (w/w). Cereal quality was determined based on the value of carbohydrate, protein, fat, fiber, water, and ash content. The results showed that the protein, fat, water, and ash content met the SNI standard, while the fiber content was still higher than the maximum SNI limit. Statistically, the treatment of the ratio of coconut and soy milk pulp flour had a significant effect on all cereal quality parameters (sig. 0.00 < α (0.05)). The high cereal protein content was found in all levels, namely in the range of 14.29-21.14%, while the fat content was in the range of 17.8-34.41%. The use of a 0:100 ratio produces carbohydrate content that meets SNI, which is more than 60%. The use of a combination of coconut pulp and soy milk pulp for the manufacture of cereals that needs to be developed is 25:75 (w/w), however still needs further modifications to reduce fiber content and increase the carbohydrate content.
Formulation of Encapsulated Extracts from Local Palu Red Onion Bulbs (Allium cepa var. aggregatum L.) Using Carrageenan Coating: Characterization, Stability, and Antioxidant Activity Nurhaeni; Aulia Pariusi Pariusi; Aini Auliana Amar; Ruslan; Abdul Rahman Razak; Indriani
KOVALEN: Jurnal Riset Kimia Vol. 12 No. 2 (2026): August Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2026.v12.i2.18156

Abstract

This study aimed to identify the optimal concentration of carrageenan as a coating matrix for extracts of local Palu red onion bulbs (Allium cepa var. aggregatum L.) using the ion gelation method to characterise their properties, stability and antioxidant activity. The technique of converting liquid samples into small particles is known as microencapsulation. Carrageenan was formulated at varying concentrations (0.1%, 0.2%, 0.3%) with the addition of 0.1% Na-TPP. Testing of antioxidant activity at a concentration of 0.3% yielded the highest antioxidant activity of 87.59%. The ANOVA test results showed that the matrix concentration had a significant effect (<0.05) on antioxidant activity. A total phenolic content of 49.61 mg GAE/g was observed in the 0.3% carrageenan sample. Carrageenan was stable at temperatures of 25°C and 40°C. FTIR characterisation of the encapsulation process indicated the presence of spectra showing interactions between the coating matrix and the extract, revealing changes in functional groups. PSA analysis indicated a particle size of 2100 µm.
Co-Authors A. Nurwahida Abd. Rahman Razak Abd. Rahman Razak Abd. Rahman Razak Abd. Rasyid Syamsuri Abdul Rahman Razak Abdul Rahman Razak Agus Rahmatullah Ahmad Kamal Ahmad Ridhay Ahmad Ridhay Aini Auliana Amar Aini Auliana Amar Ali Djamhuri Amiluddin, Muh. Rafiq Andi Nursyafinah Andi Saifah Angriani Sambali Asri Wulandari Aulia Pariusi Pariusi Ayu Satmah Bambang Sardi Betzy Eppang Budi Hermanto Madjaga Caterina Bijang Chaedar, Nur Deddy Firman Desi Hardianti Dewi Indriany Diharnaini Diharnaini Djumidar Dwi Juli Puspitasari Dwi Juli Pusptasari Dwi Nurfahriani Eka Dwiyanti Tombilayuk Eka Lindawati Elissandra Bange ellditna jenianti Erwin Abdul Rahim Firmansyah Firmansyah Fisty Sumangkut Fito Fitri A Bande Fitrianingsih Mozin Gladys Heince Andre Pua Husain Sosidi iget rais Ila Israwaty Indrawan, Yossy Wahyu Indriani Indriani Indriani Indriani Indriani Indriani Indriani Indriani Indriani Irpan Irpan Irwan Said Jaya Hardi Jaya Hardi Jusman Jusman, Jusman Khairuddin Khairuddin Khairuddin Khairuddin Khairunnisa Khairunnisa Laksono Trisnantoro Lindayati Djamil, Lindayati M. Yogi Riyantama Isjoni Magfira Magfira Mappiratu Mappiratu Mappiratu Mappiratu Maulana, Asad Miswan Moh. Mirzan Moh. Mirzan Mohammad Lutfi Mohammad Sidiq Mudinillah, Adam Muh. Alwi Muqasyifah Musafira Musafira Musafira Musafira Musafira Musafira Nanda Novita Nasution, Annio Indah Lestari Nea, Sirah Diniati Neni Sri Wahyuni Nasir Ni Ketut Sumarni Nov Irmawati Inda Novrina Rasinta Ranonto Nur A Atjiang Nur Afni I. Hanapi, Nur Afni I. Nur Alam Nur Alam Nur Faidah Nur Iman Nur Madinah Rizal Nur'ain Nur'ain Nurakhirawati Nurakhirawati Nurfita Sari Nurmila Nurmila Nurul Bima Khasanah Ofelman Talunoe Pasjan Satrimafitrah Pratiwi Dwiasmukti Pratiwi Listyana Sareu Prismawiryanti Prismawiryanti Putri Hardiyanti Rahmadina, Hizra Nur Rian S Rauf Rismawaty Sikanna Ruslan Ruslan Ruslan Ruslan S. H. Sabarwati, S. H. Sabarwati, Sitti Hadijah Saiful Safari Sri Adeningsih Stevi Evalin Mandjoro Sucianti sukriadi sukriadi Susanti Susanti Syaiful Bahri SYAIFUL BAHRI Syaiful Bahri Syaiful Bahri Syamsiar, Syamsiar Syamsuddin Syamsuddin Syamsuddin THAMRIN AZIS Tri Rahayu Tiaradewi Tri Rahayu Tiaradewi, Tri Rahayu Tiaradewi Umma Fahriah Soleh Ummi Rahayu, Ummi Yuniar Yuniar