Article Per Year (5 Year)
p-Index From 2021 - 2026
2.998
P-Index
This Author published in this journals
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

Published : 69 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 69 Documents
Search

 1   2   3   4   5 
SINTESIS SURFAKTAN METIL ESTER SULFONAT (MES) DARI METIL LAURAT Nur Iman; Abdul Rahman Razak; Nurhaeni Nurhaeni
KOVALEN: Jurnal Riset Kimia Vol. 2 No. 2 (2016)
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.567 KB)

Abstract

Synthesis of surfactant methyl ester sulfonate (MES) of methyl laurate has been done. This study aims to determine the best mole ratio between the methyl esters of lauric acid with sulfonated agent NaHSO3 in sulfonated methyl laurate. Mole variation used in this study are 1:1; 1:1,2; 1:1,4 and 1;1,6 (v/w). Best value MES emulsion stability, acid value and the surface tension is 94,5 minutes,1.3 ml KOH/ g sample, 39.3 dyne/cm in 1:4 ratio produces. MES synthesis produced by sulfonate group shown in the FTIR spectra in the wave number around 1366.52 to 1015.30 cm. Keywords : Surfactant Methyl Ester Sulfonate, Methyl Laurate.
RETENSI FENOLAT BUBUR INSTAN FUNGSIONAL SELAMA PENYIMPANAN PADA SUHU RUANG Nurakhirawati Nurakhirawati; Nurhaeni Nurhaeni; Irpan Irpan
KOVALEN: Jurnal Riset Kimia Vol. 2 No. 2 (2016)
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.598 KB)

Abstract

Fenolat retention of porridge instant functional for storage at room temperature. Has been done this study aims to determine the retention of instant porridge phenolics during storage as well as to determine the shelf life of instant porridge at room temperature. Estimation of shelf life or expiration period using the model of reaction kinetics. The treatment phase of the study include purple sweet potato flour manufacture, processing, instant porridge, instant porridge and storage at room temperature. Analysis of phenolics in instant porridge be done every 7 days for 56 days using UV-Vis spectrophotometry at a wavelength of 765 nm. The data obtained is used to determine the shelf life of instant porridge. The results obtained show the retention levels of phenolics on day 0 was 100% and at day 56 was 27.911% and the expiration of a functional instant porridge is 55 daysKeywords: Phenols, functional porridge, Fenolat Retention, Shelf Life, reaction kinetics model
KAJIAN KANDUNGAN FENOLAT DAN AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL TEMPE GEMBUS DARI BERBAGAI WAKTU INKUBASI Mohammad Sidiq; Mappiratu Mappiratu; Nurhaeni Nurhaeni
KOVALEN: Jurnal Riset Kimia Vol. 2 No. 3 (2016)
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.83 KB)

Abstract

The research about study of content phenolic and antioxidant activity extract ethanol tempeh gembus of a variety of incubation has been done. This study aims to know the time of incubation and time extraction that produced levels of the total phenolic and the best antioxidant activity. Determination of total phenolic using the method of folin-ciocalteu and antioxidant activity using the method DPPH. The achievement of goals be done through the application of the treatment of the time of incubation and time extraction of level of phenolic and antioxidant activity. The influence of the time of incubation is applied five levels of 0 hours; 12 hours; 24 hours; 36 hours and 48 hours. While the influence of time extraction is 1 hours, 1.5 hours, 2 hours, 2.5 hours, and 3 hours. From the result obtained by the incubation is at the time of incubation 36 hours which resulted in levels of total phenolic of 7.75 % and the value of IC50 0f 1098.88 µg/mL. The use of time extraction is 1,5 hours that produces levels of total phenolic of 5.26 % and the value of IC50 of 1198.95 µg/mL.Keyword: tempeh gembus, total phenolic, antioxidant activity, time of incubation, time extraction
PENGGUNAAN ARANG AKTIF KULIT KACANG TANAH (Arachis hypogaea) SEBAGAI ADSORBEN DALAM PRODUKSI KAROTEN DARI FRAKSI OLEIN MINYAK SAWIT KASAR Nurhaeni Nurhaeni; Ni Ketut Sumarni; Eka Dwiyanti Tombilayuk
KOVALEN: Jurnal Riset Kimia Vol. 2 No. 3 (2016)
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.347 KB)

Abstract

Research using active charcoal leather peanut (Arachis hypogaea) as adsorbent in carotene production of crude palm oil olein fraction has conducted. This study aims to determine the ratio between active charcoal and olein that can produce the highest carotene shake time for 3 hours. Carotene analysis was conducted using UV-Vis spectrophotometry. The study design is applied is completely randomized design (CRD), with 5 variations adsorbent ratio is 1: 5; 1,5: 5; 2: 5; 2,5: 5; 3: 5 w/v and each stage is repeated twice. Results of this research showed that the ratio of peanut skin adsorbent 2: 5 w/v have the best adsorption weighing carotene obtained at 0,72 mg and percent absorption by the adsorbent reaches 97,3%.Keywords: Peanut Leather, Adsorbents, UV-Vis spectrophotometry, Carotene.
ADSORBSI ION Pb2+ MENGGUNAKAN ARANG AKTIF KULIT DURIAN DENGAN METODE KOLOM ADSORBSI Nurhaeni Nurhaeni; Musafira Musafira; Agus Rahmatullah
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 1 (2017): Edisi April
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.358 KB)

Abstract

Research has conducted using of activated charcoal from durian skin as an adsorbent of ion Pb2+ on water. This study aims to determine the effect of high adsorbent activated charcoal of durian skin and influence of adsorbent elution time. The method used in this study is SSA. The research design is applied is an RAL, with an independent variable are high adsorbent and adsorbent elution time. In this research, the variation applied adsorbent is 13.5 cm high, 18 cm, 22.5 cm, and 27 cm and variations adsorbent of the elution time are first, second, third, fourth, fifth, and sixth hour. The results showed that activated charcoal of durian’s skin 27 cm has a higher adsorption with the variation of high adsorbent with high levels of ion Pb is 80.019% and for variations in elution time adsorbent obtained the use of the first hour is more effective , Activated charcoal durian skin can be used as an adsorbent decreased levels of Pb ion in the water until the sixth hour.Keywords:  activated charcoal, adsorbent, durian skin, Pb2+.
PEMANFAATAN KULIT JAGUNG (Zea mays) UNTUK PRODUKSI GLUKOSA MENGGUNAKAN KAPANG Trichoderma sp. Saiful Safari; Syaiful Bahri; Nurhaeni Nurhaeni
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 1 (2017): Edisi April
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (671.996 KB)

Abstract

This study uses corn husk for the production of glucose by fermentation with the fungus Trichoderma sp. The aim is to determine the amount of Trichoderma sp. which is the best to produce the highest glucose with a variety of heavy fungus are 6, 9, and 12 grams in 25 grams of flour corn husk. Fermentation time variation  3, 4, and 5 weeks. Determination of the glucose level with DNS method using UV-Vis spectrophotometry. The study design using RAL factorial consisting of two factors, namely the weight of the fungus and fermentation time, each factor consists of 3 levels and is done in duplicate.The results showed that high glucose levels obtained in the addition of 12 grams of fungus and fermentation time 4 weeks with a glucose level of 21.72%.Keywords: Corn husk, Trichoderma weight, Time of fermentation, Glucose
KAJIAN PENGGUNAAN SERASAH DAUN KAKAO UNTUK SUBTITUSI SERBUK GERGAJI DAN DEDAK PADI SEBAGAI MEDIA TANAM JAMUR TIRAM PUTIH (Pleurotus ostreatus) Abd. Rahman Razak; Susanti Susanti; Nurhaeni Nurhaeni; Muh. Alwi
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 1 (2017): Edisi April
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (755.122 KB)

Abstract

Has done research on the study of the use of cocoa leaf litter for substitution sawdust and rice bran as a growing medium white oyster mushroom (Pleurotus ostreatus). This study aims to determine the ability of the cocoa leaf litter in substitute sawdust and rice bran as oyster mushroom media and to determine the nutrient value of the conversion of media into fruiting bodies of oyster mushrooms. Treatment comparison of leaf litter cocoa (SDK), sawdust (SG) and rice bran (DP) there are seven various ie first treatment / standard (SDK: 0 kg, SG: 5 kg, DP: 3 kg), second (SDK: 1 , 5 kg, SG: 5 kg, DP: 1.5 kg), third (SDK: 3 kg, SG: 5 kg, DP: 0 kg), fourth (SDK: 2.5 kg, SG: 2.5 kg DP: 3 kg), fifth (SDK: 5 kg, SG: 3 kg, DP: 0 kg), sixth (SDK: 5 kg, SG: 1.5 kg, DP: 1.5 kg), and seventh (SDK: 5 kg, SG: 0 kg, DP: 3 kg). The results showed that both treatments are best treated with a total weight of 181.122 g fruit.Keywords: cocoa leaf litter, white oyster mushroom
OPTIMASI KONDISI REAKSI UNTUK SINTESIS KARBOKSIMETIL SELULOSA (CMC) DARI BATANG JAGUNG (Zea mays L.) Nur'ain Nur'ain; Nurhaeni Nurhaeni; Ahmad Ridhay
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 2 (2017): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (776.077 KB)

Abstract

Telah dilakukan penelitian Optimasi Kondisi Reaksi untuk Sintesis Karboksimetil Selulosa (CMC) dari Batang Jagung (Zea mays L.). Penelitian ini bertujuan untuk menentukan rasio natrium monokloroasetat : selulosa dan waktu reaksi terbaik dalam sintesis karboksimetil selulosa dari batang jagung sehingga diperoleh rendemen dan derajat subsitusi tertinggi. Variasi rasio yang digunakan adalah 4:5, 5:5, 6:5, 7:5, 8:5 dan 9:5 gram sedangkan waktu reaksi yang digunakan yaitu 1, 2, 3, 4, 5, dan 6 jam. Kondisi optimum reaksi dalam sintesis karboksimetil selulosa dari batang jagung diperoleh pada penggunaan rasio 6:5 gram natrium monokloroasetat : selulosa dengan menggunakan 4 jam waktu reaksi. Karboksimetil selulosa yang dihasilkan pada penggunaan rasio terbaik memiliki rendemen sebesar 96,36% dan derajat substitusi yaitu 0,839. Sedangkan hasil karboksimetil selulosa pada waktu reaksi terbaik memiliki rendemen sebesar 91,95% dengan derajat subsitusi sebesar 0,785. Kata kunci: Batang jagung, Karboksimetil Selulosa, Derajat Substitusi
OPTIMALISASI EKSTRAKSI PEKTIN DARI KULIT BUAH SUKUN (Artocarpus altilis) Budi Hermanto Madjaga; Nurhaeni Nurhaeni; Ruslan Ruslan
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 2 (2017): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.188 KB)

Abstract

Penelitian telah dilakukan tentang optimalisasi ekstraksi pektin dari kulit buah sukun (Artocarpus altilis). Penelitian ini bertujuan untuk mengetahui konsentrasi asam sitrat, suhu dan waktu terbaik dalam menghasilkan ekstraksi pektin dengan rendemen tinggi. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri atas 3 faktor yaitu konsentrasi asam sitrat terdiri atas 5 taraf (1, 3, 5, 7, dan 9%) ; Suhu ekstraksi terdiri atas 5 taraf (60-65, 70-75, 80-85, 90-95, dan 100-105oC), dan Waktu ekstraksi terdiri atas 6 taraf (60, 90, 120, 150, 180, dan 210 menit) yang masing-masing dilakukan sebanyak 2 kali pengulangan. Hasil penelitian menunjukan konsentrasi asam sitrat terbaik diperoleh pada 7% dengan rendemen pektin 32,28%, suhu terbaik diperoleh pada 90-95oC dengan rendemen pektin 39,585%, dan waktu terbaik diperoleh pada 180 menit dengan rendemen pektin 49,075%. Hasil karakteristik terhadap pektin adalah kadar metoksil 8,091%, kadar galakturonat 89,76%, dan berat molekul 73.673,997 g/mol.Kata kunci: Ekstraksi, pektin, kulit sukun, metoksil, galakturonat.
PENGARUH PERBANDINGAN MOL ASAM STEARAT TERHADAP ETANOL DAN WAKTU REAKSI PADA SINTESIS ETIL STEARAT Ahmad Kamal; Nurhaeni Nurhaeni; Erwin Abdul Rahim
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 2 (2017): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.16 KB)

Abstract

Telah  dilakukan penelitian tentang pengaruh perbandingan mol dan waktu reaksi pada sintesis etil stearat menggunakan katalis asam sulfat pekat. Penelitian ini bertujuan untuk mendapatkan rasio mol asam stearat/etanol dan waktu reaksi esterifikasi yang menghasilkan derajat esterifikasi yang tinggi. Variabel yang diamati yaitu rasio mol asam stearat/etanol (m/v) 1:4, 1:5, 1:6, 1:7, dan 1:8. Selanjutnya variasi waktu reaksi esterifikasi yaitu 3 jam, 4 jam, 5 jam, 6 jam, dan 7 jam. Hasil penelitian menunjukkan rasio mol asam stearat/etanol terbaik yaitu 1:8 dengan derajat esterifikasi 83,08%. Sedangkan waktu reaksi esterifikasi terbaik diperoleh pada waktu 5 jam dengan derajat esterifikasi 90,8%. Kata Kunci : Asam Stearat, Etil Stearat, Derajat Esterifikasi
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