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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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Kualitas Minyak Ikan Lele Dumbo (Clarias gariepinus) Selama Penyimpanan dengan Penambahan Likopen Kasar dari Buah Tomat: Quality of Dumbo Catfish Oil (Clarias gariepinus) During Storage with The Additing of Crude Lycopene from Tomatoes Heince Andre Pua; Nurhaeni; Erwin Abdul Rahim; Prismawiryanti
KOVALEN: Jurnal Riset Kimia Vol. 7 No. 2 (2021): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2021.v7.i2.13905

Abstract

The quality of Dumbo Catfish (Clarias gariepinus) oil can be maintained during storage with the addition of crude lycopene in tomatoes as an antioxidant. The purpose of this study was to obtain the best ratio between crude lycopene in tomatoes and Dumbo catfish oil during storage. The study was conducted using a variable ratio of crude lycopene: Dumbo catfish oil with 4 treatment levels (6:40, 8:40, 10:40, and 12:40 (w/v)) and storage time variables of 1, 2, 3, and 4 weeks. Lycopene levels in Dumbo catfish oil were analyzed using a UV-Vis spectrophotometer, while the quality of Dumbo catfish oil during storage was determined through peroxide value analysis. The results showed that the best ratio of crude lycopene of tomatoes: Dumbo catfish oil was 12:40 at the third week of storage with lycopene content of 0.257 grams and the peroxide value of Dumbo catfish oil was 3.45 meq/kg or had met IFOS standards. Keywords: Crude lycopene, tomato fruit, dumbo catfish oil, peroxide value.
Retensi Antosianin dari Ekstrak Daun Bayam Merah (Alternanthera amoena Voss) pada Pengolahan Mie Basah: Retention of Anthocyanin from Red Spinach Leaves Extract (Alternanthera amoena Voss) in Processing Wet Noodles Betzy Eppang; Nurhaeni; Khairuddin; Ahmad Ridhay; Jusman
KOVALEN: Jurnal Riset Kimia Vol. 6 No. 1 (2020): Edisi April
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2020.v6.i1.14795

Abstract

Research about the retention of red spinach leaves extract (Alternanthera amoena Voss) as a natural coloring and preservative in wet noodles has been done. The study aim is to determine the anthocyanin retention of red spinach leaves extract in the processing of wet noodles and determine the organoleptic quality of wet noodles by adding pigment red spinach leaves extract. The extraction method used the maceration method by ethanol solvent. Anthocyanin levels on an extract that obtained by using a UV-Vis spectrophotometer were 33.34%. Anthocyanin retention of red spinach leaves extract on wet noodle processing at storage times of 0, 6, 12, 18, 24, 30, 36, 42, and 48 hours was 100%, 75.87%, 75.37%, 74.95%, 74.62%, 74.12%, 73.28%, 71.70%, and 70.61%. Organoleptic quality of wet noodles that was added with extract has “like” to “really like” grade with score detail of the best color of 4.37 at 18 hours storage, whereas the odor, texture, and taste for 0 hours storage have the highest score of 4.63, 4.63, and 4.57, respectively. The wet noodles with red spinach leaves extract more preferred than the noodles without extracts. Keywords: Retention, anthocyanin, Alternanthera amoena Voss., wet noodles
UJI AKTIVITAS ANTIOKSIDAN EKSRTRAK LUMUT HATI (Marchantia polymorpha) Nurhaeni Nurhaeni; Gladys; Jaya Hardi
KOVALEN: Jurnal Riset Kimia Vol. 5 No. 3 (2019): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.066 KB) | DOI: 10.22487/kovalen.2019.v5.i3.14981

Abstract

The research is about antioxidant activity of the liverworts (Marchatia polymorpha) extract based on the level of a polar solvent. This research was done by maceration of liverworts by using n-hexane, ethyl acetate and ethanol solvent. The n-hexane, ethyl acetate, and ethanol fraction were tested the antioxidant activity by using DPPH method. The result was obtained for antioxidant activity (IC50) on n-hexane extract, ethyl acetate, ethanol, and vitamin C is 1065.33 ppm, 1326.52 ppm, 1876.11 ppm, and 13.45 ppm, respectively. The liverworts extract was identified contains secondary metabolites compounds of flavonoid, tannins, polyphenol, alkaloid, and steroid. Keywords: Liverwort extract, antioxidant, IC50
Kinerja Elektroda Platina Terlapis Enzim Butirilkholinesterase-Selulosa Asetat-Glutaraldehida untuk Deteksi Diazinon: Performance of Platina Electrode Coated by Butyrylcholinesterase-Cellulose Acetate-Glutaraldehyde for Diazinon Detection Thamrin Azis; Nurhaeni; Caterina Bijang; A. Nurwahida
KOVALEN: Jurnal Riset Kimia Vol. 6 No. 2 (2020): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2020.v6.i2.15237

Abstract

Diazinon (o, o-diethyl-o [2-isopropyl-6-methyl pyrimidynyl] phosphorotioate) is one of the organophosphate group pesticides widely used to protect cabbage plants (Brassica olarecea). Pesticide residues left in plants can bind to the cholinesterase enzyme and cause system disruption nerve. Analysis of diazinon residues in cabbage plants needs to be done to determine the level of toxicity caused. The electrochemical biosensor method as an electrochemical sensor uses a working electrode of platinum wire coated with the enzyme butybholchesteresterase (BChE) and cellulose acetate (SA) membrane and glutaraldehyde (GA) can be used for the analysis of pesticide residues. The test results of the SA electrode composition of the 10% GA 20% membrane obtained Nernst factor prices 28.1 µV / decade with a measurement range of 10-9 - 10-6 M, detection limit value of 1.29 x 10-7 M response time of 30 - 300 seconds. Keywords: biosensor, butylochholesterase, membrane, electrochemistry
Limbah Sabut Kelapa Muda (Cocos nucifera L.) sebagai Sumber Pewarna Kain: Young Coconut Coir (Cocos nucifera L.) Waste as a Source of Cloth Dye Ni Ketut Sumarni; Umma Fahriah Soleh; Nurhaeni; Prismawiryanti
KOVALEN: Jurnal Riset Kimia Vol. 7 No. 3 (2021): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2021.v7.i3.15642

Abstract

Young coconut coir (Cocos nucifera Linn.) waste has the potential to be processed into a useful product, namely as a source of natural dyes, especially in cotton fabrics. Processing is carried out through a maceration process for 72 hours using 96% ethanol as solvent. The obtained extract was applied on cotton cloth with various concentrations of the extract solution, 5, 10, 15, 20, and 25%, and various soaking times of the fabric in the extract for 60, 90, 120, 150, and 180 minutes. The extract was analyzed using Uv-Vis Spekctrofotometer it showed that the ethanol extract or dye that is absorbed into the cotton fabric with various concentrations is 3.43, 4.82, 6.61, 7.79, and 9.03%, respectively. The various soaking times show that on the other hand that the extract absorbed into the fabric was successfully obtained around 7.75, 9.64, 10.81, 11.65, and 12.04%. The results show that the concentration of the extract solution and the increasing length of soaking time can increase the percentage of extract or dye absorbed in cotton fabrics
Produksi Maltodekstrin Secara Enzimatik dengan Menggunakan Berbagai Massa Pati Biji Durian (Durio zibethinus Murr.) Ayu Satmah; Nurhaeni Nurhaeni; Jaya Hardi; Indriani Indriani
Jurnal Kimia Fullerene Vol 6 No 2 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i2.261

Abstract

Durian seeds (Durio zibethinus Murr.) are one part of the durian fruit which has a high carbohydrate content so that it is a potential source of maltodextrin. The production of maltodextrin from durian seed starch has been carried out using the α-amylase enzyme. This study aims to determine the mass of durian seed starch substrate required to produce maltodextrin with the best yield and value of Dextrose Equivalent (DE). Starch with masses of 5, 10, 15, 20, and 25 grams suspended in CaCl2 was hydrolyzed with α-amylase for 90 minutes. The results showed that the best mass of durian starch was 15 grams with a maltodextrin yield of 25.842% and a DE value of 11.493. Maltodextrin from durian seed starch has the potential to be developed because it has met the requirements of DE <20.
KOMPOSISI KIMIA DAN SIFAT FUNGSIONAL PATI JAGUNG BERBAGAI VARIETAS YANG DIEKSTRAK DENGAN PELARUT NATRIUM BIKARBONAT Nur Alam Nur Alam; Nurhaeni Nurhaeni
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 2 (2008)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.84 KB)

Abstract

The  aim  of  this  experiment  was  to  analyse  chemical  composition  and  functional  properties  of  corn  starch  from various  corn  varieties  extracted  with  natrium  bicarbonat  solution.  Corn  kernels  of  N35,  Sticky  corn,  yellow  Srikandi  and yellow local varieties were processed into starch. The starch was extracted with 1% natrium bicarbonat solution (1:10 [w/v]).  Starch of commercial corn was used as a control. This experiment used Randomized Block Design with three replications. Results of this experiment indicated that the highest starch, amylose, fibre and free fatty acid contents were obtained at starch of yellow local variety; and the highest sugar, protein and lypide contents were found at yellow Srikandi variety, whilst the highest ash content was achieved at N35 variety. Starch of sticky  corn possessed the lowest amylose  content, but had the highest amylopectine content. The highest water absorbtion and solution rate were obtained at starch of yellow local variety.  Furthermore, the highest oil absorbtion rate was achieved at starch of sticky corn variety. Corn starch extracted with natrium bicarbonat solution had a lower quality compared to commercial corn starch, and therefore the corn starch recovered here apparently should not be recommended as a food source.
Aktivitas Antibakteri Ekstrak Kulit Batang Tumbuhan Johar (Senna siamea Lam) pada Berbagai Polaritas Pelarut : Antibacterial Activity of Johar (Senna siamea Lam) Stem Bark Extract on Various Solvent Polarities Djumidar; Abd. Rahman Razak; Ahmad Ridhay; Ni Ketut Sumarni; Syamsuddin; Jusman; Nurhaeni; Erwin Abdul Rahim
KOVALEN: Jurnal Riset Kimia Vol. 8 No. 2 (2022): 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.2022.v8.i2.15970

Abstract

Johar plant is a type of plant from the Fabaceae family which is widely used in traditional medicine such as malaria, itching and diabetes medicine. This study aims to determine the antibacterial activity of Johar stem bark extract with different levels of solvent polarity on the growth of Staphylococcus aureus and Escherichia coli bacteria and to determine the active compound class by TLC-Bioautography. The extraction of active compounds used a multilevel maceration method starting with n-hexane (non polar), followed by ethyl acetate (semi-polar) and ethanol (polar) solvents. Antibacterial activity testing was carried out by diffusion well method with a concentration variant of 25% and 50%. The results showed that n-hexane, ethyl acetate, and ethanol extract had antibacterial activity against the two test bacteria. Ethyl acetate and ethanol extract from Johar stem bark at a concentration of 50% were classified as very strong antibacterials with inhibition zone diameters against S. aureus, which were 22.02±0.84 mm and 20.16±0.23 mm, respectively. The results of the TLC-Bioautography test showed that the three test extracts had strong antibacterial activity against S. aureus and E. coli. In the n-hexane extract with n-hexane: ethyl acetate (9:1) eluent using Lieberman-Burchard spray reagent, it was suspected that triterpenoid compounds were present. In ethyl acetate extract with n-hexane: ethyl acetate (6:4) eluent and ethanol extract with chloroform: methanol (8:2) eluent using FeCl3 1% spray reagent, it was suspected that the tannin compound was present in both extracts.
Isolation and Characterization of Flavonoid Derivative of Ethyl Acetate Extract from Bauhinia latisiliqua Stem Bark and Its Activity as Antioxidant Sitti Hadijah Sabarwati; Indriani Indriani; Nurhaeni Nurhaeni; Ahmad Ridhay; Pasjan Satrimafitrah; Jaya Hardi; Rismawaty Sikanna
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).
Pelatihan Pembuatan Makanan Fungsional Berbasis Tepung Ampas Kelapa dan Tepung Kelor pada Ibu-Ibu PKK di Desa Binangga Kecamatan Marawola Kabupaten Sigi Sardi, Bambang; Puspitasari, Dwi Juli; Sumarni, Ni Ketut; Nurhaeni, Nurhaeni; Maulana, Asad; Amiluddin, Muh. Rafiq; Wulandari, Asri; Miswan; Saifah, Andi; Mahfud, Mahfud
Sewagati Vol 8 No 5 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i5.1939

Abstract

Keberadaan kasus stunting dan pertumbuhan ekonomi yang lambat di Desa Binangga menjadi pendorong untuk melakukan pengabdian. Metode yang digunakan dalam menangani kasus melalui pendekatan barbasis produk daerah. Makanan fungsional dari tepung ampas kelapa dan daun kelor dapat digunakan untuk menangani stunting dan menumbuhkan ekonomi masyarakat. Penanganan stunting dan pemulihan ekonomi dilakukan melalui beberapa tahapan yaitu persiapan, produksi, standarisasi, penerapan, dan evaluasi. Tahapan persiapan meliputi indentifikasi dan diskusi masalah, serta sosialisasi dan penerapan pembentukan produk diikuti 45 orang yang terdiri dari ibu-ibu PKK, kader puskesmas, orang tua yang anaknya terindikasi stunting, dan petani kelapa. Dari identifikasi dan koordinasi dengan ibu-ibu PKK diperoleh data sekitar 10 anak yang terindikasi stunting berdasarkan jenis kelamin, usia, tinggi, dan berat badan anak. Tahapan selanjutnya dilakukan produksi dan standarisasi makanan fungsional. Tahapan penerapan dan evaluasi dilakukan dengan intervensi makanan fungsional selama 2 minggu dan pengukuran tinggi dan berat badan anak setiap minggu. Diperoleh hasil telah terjadi pertambahan tinggi dan berat badan anak rata-rata masing-masing 0,71 cm dan 0,48 kg tiap minggu. Keberhasilan intervensi makanan fungsional dalam meningkatkan tinggi dan berat badan anak dapat menjadi alternatif penanganan stunting. Keberhasilan ini juga dapat menjadi motivasi buat ibu-ibu PKK untuk mengembangkan dan memasarkan berbagai produk melalui platform digital.
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