Garuda - Garba Rujukan Digital

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

Author-ID : 334674

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

Articles

3 4 5 6 7

ANALISIS KADAR SERAT DAN KADAR PROTEIN SERTA PENGARUH WAKTU SIMPAN TERHADAP SEREAL BERBASIS TEPUNG AMPAS KELAPA DAN TEPUNG TEMPE Fitrianingsih Mozin; Nurhaeni; Ahmad Ridhay
KOVALEN: Jurnal Riset Kimia Vol. 5 No. 3 (2019): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Research on dissolved protein and crude fiber flour based on coconut pulp and tempe flour has been performed. This study aims to determine the effect of shelf time on levels of dissolved protein and crude fiber flour-based cereal coconut pulp and tempeh flour. Cereals were made from coconut pulp flour and tempe flour as the main ingredients and the ratio of the ingredients was varied to 25:75; 50:50; and 75:25. The ratio of 25:75 produced the highest dissolved protein level of 3.88% and the 75:25 ratio produced the highest crude fiber of 21.96%. Keywords: Coconut pulp flour, tempe flour, dissolved protein, crude fiber

KAJIAN EKTRAKSI GELATIN DARI TULANG IKAN KATOMBO (Selar crumenopthalmus) Nurhaeni Nurhaeni; Rian S Rauf; Jaya Hardi
KOVALEN: Jurnal Riset Kimia Vol. 4 No. 2 (2018): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Penelitian ini bermaksud untuk mengetahui waktu perendaman dan rasio tulang ikan katombo dengan larutan asam sitrat 9% terhadap rendemen dan mutu gelatin tulang ikan katombo yang dihasilkan. Hasil penelitian menunjukkan waktu terbaik pada perendaman tulang ikan katombo adalah 60 jam dengan rendemen 6,442%, kadar abu 4,50%, kadar air 8,70%, viskositas 2,93 cP dan kekuatan gel 44,40 mm/kg.s. Rasio terbaik antara tulang ikan katombo terhadap larutan asam sitrat 9% adalah 1:4 (b/v) dengan rendemen 6,938%, kadar abu 3,70%, kadar air 8,70%, viskositas 2,93 cP dan kekuatan gel sebesar 44,30 mm/kg.s.Kata kunci : Gelatin, ikan katombo, ekstraksi, viskositas, kekuatan gel

RECOVERY REMAZOL YELLOW MENGGUNAKAN GEL KITOSAN TERTAUT SILANG GLUTARALDEHID Nurhaeni Nurhaeni; Desi Hardianti; Jaya Hardi; Diharnaini Diharnaini; Khairunnisa Khairunnisa
KOVALEN: Jurnal Riset Kimia Vol. 4 No. 3 (2018): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Telah dilakukan penelitian tentang recovery Remazol yellow menggunakan gel kitosan tertaut silang glutaraldehid. Tujuan penelitian ini untuk menentukan persentasi recovery Remazol yellow menggunakan kitosan tertaut silang glutaraldehid terhadap pengaruh pH, waktu kontak dan konsentrasi larutan. Penelitian ini dilakukan dengan menggunakan rancangan acak lengkap (RAL), pada variasi pH 2, 3, 4, 5 dan 6; variasi waktu kontak 6, 12, 18, 24 dan 30 jam; serta variasi konsentrasi larutan zat warna Remazol yellow 10, 15, 20, 25 dan 30 ppm, dan setiap perlakuan dilakukan sebanyak 2 kali pengulangan. Persentasi recovery terbaik diperoleh pada pH 6, waktu kontak 24 jam dan konsentrasi Remazol yellow 30 ppm dengan persentasi recovery masing-masing 77,39%, 79,68% dan 86,46%. Kata kunci : kitosan, glutaraldehid, recover, remazol yellow, tertaut silang

EKSTRAKSI DAN KARAKTERISASI PEKTIN DARI KULIT DAN DAMI BUAH CEMPEDAK (Artocarpus chempeden) Nurhaeni Nurhaeni; Nur A Atjiang; Jaya Hardi; Diharnaini Diharnaini; Khairunnisa Khairunnisa
KOVALEN: Jurnal Riset Kimia Vol. 4 No. 3 (2018): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Telah dilakukan ekstraksi dan karakterisasi pektin dari kulit dan dami buah Cempedak (Artocarpus chempedan) dengan tujuan untuk mengetahui jenis pelarut dan waktu ekstraksi terbaik yang diperlukan untuk menghasilkan rendemen pektin tertinggi. Penelitian dilakukan menggunakan rancangan acak lengkap (RAL) yang terdiri atas 2 faktor, yaitu jenis pelarut yang terdiri idar 3 taraf (asam sitrat, asam klorida, dan asam asetat) dan waktu eksraksi terdiri dari 5 taraf (30, 60, 90, 120, dan 150 menit) yang masing-masing dilakukan sebanyak dua kali pengulangan. Hasil penelitian menunjukan jenis pelarut terbaik adalah asam sitrat dengan rendemen 38,85% dan waktu terbaik diperoleh pada waktu 90 menit dengan rendemen 34,65%. Pektin yang diperoleh mengandung kadar air 5,5 %; kadar metoksil 12,4%; kadar galakturonat 71,6%; dan kadar abu 6 %.Kata Kunci : Pektin, kulit dan dami Cempedak, pelarut, waktu ekstraksi

Ekstraksi Glukomanan dari Umbi Gembili (Dioscorea esculenta L.): Extraction of Glucomannan from Gembili Bulbs (Dioscorea esculenta L.) Pratiwi Listyana Sareu; Nurhaeni; Ahmad Ridhay; Moh. Mirzan; Syamsuddin
KOVALEN: Jurnal Riset Kimia Vol. 7 No. 1 (2021): 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.2021.v7.i1.12008

Gembili bulbs (Dioscorea esculenta L.) have a fairly high carbohydrate content, so they can potentially be a new source of glucomannan compounds. This study aims to determine the yield and glucomannan characteristics of Gembili bulbs at different extraction times and temperatures. Glucomannan was obtained by extraction with water at temperatures of 45, 60, 75, 90, and 105oC for 45, 60, 75, 90, and 105 minutes, and precipitated with isopropyl alcohol. The results showed that the highest yield was obtained at the extraction time of 90 minutes and a temperature of 105oC of 53.09%. The glucomannan of Gembili bulb has a molecular weight of 1,865 x 104 g/mol with ash and water content values of 0.866% and 10.45%, respectively. The results of identification of functional groups with an FTIR spectrophotometer showed that there was a functional group stretching vibration of glucomannan compounds, including the –OH group at a wavenumber of 3431 cm-1 and -C-O-C (glycosidic bond) at a wavenumber of 1020.34 cm-1 and bending vibration of -CH functional groups on wavenumber of 850.61 cm-1.

Analisis Kadar Serat dan Protein Total Sereal Berbasis Tepung Ampas Kelapa dan Ikan Cakalang (Katsuwonus pelamis): Analysis of Fiber Content and Total Protein of Cereal Based on Coconut Pulp and Skipjack Tuna (Katsuwonus pelamis) Flour Nanda Novita; Nurhaeni; Prismawiryanti; Abd. Rahman Razak
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.i1.12788

Research on the analysis of fiber and protein on cereal based on coconut pulp and skipjack tuna (Katsuwonus pelamis) flour has been carried out. The purpose of this study was to determine the ratio of coconut pulp flour and skipjack tuna flour which produced the highest fiber content and protein content in cereal processed products and to know the preference level of panelists for cereal processed products. The ratio of coconut pulp and skipjack tuna flour used in this study, namely 25:75, 50:50, 75:25 (w/w), and without the addition of coconut pulp flour and skipjack tuna flour. The results showed that cereal with the highest fiber content was obtained at a ratio of 75:25 i.e. 10.52% and the lowest fiber content was obtained at the cereal without the addition of coconut pulp flour and skipjack tuna flour i.e. 1.19%, whereas the highest protein content of cereal was obtained at a ratio of 25:75 i.e. 26.02% and the lowest protein content was obtained at the cereal without the addition of coconut pulp flour and skipjack tuna flour i.e. 9.17%. The highest preference level (5.57) of the panelists for the cereal flour of coconut pulp and skipjack tuna flour is the 75:25 ratio. Keywords: Skipjack tuna flour, coconut pulp flour, cereal, fiber, protein

STABILITAS EKSTRAK WARNA BUNGA ASOKA (Ixora javanica) BERDASARKAN VARIASI pH SELAMA MASA PENYIMPANAN ellditna jenianti; Nurhaeni; Pasjan Satrimafitrah; Dwi Juli Pusptasari
KOVALEN: Jurnal Riset Kimia Vol. 5 No. 2 (2019): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Research on the potential of Ashoka (Ixora javanica) flower as a natural food and beverage coloring agent in terms of pH stability during the storage period. This study aims to determine the stability of Asoka flower extract on the effect of pH during the storage period. The time used was 10 days and the variation of pH of 2,3,4,5 and 6, respectively. The results show that Asoka flower extract was stable at pH 2 after a 10-day storage period with degradation presentation of 36.21%, while Ashoka flower extract dyes were unstable at pH 6 after a 10-day storage period with degradation percentage is 78.02%. This proves that the different acidic atmosphere influences the stability of Ashoka flower extract. Keywords : Dyes, stability of Ashoka flowers, degradation

BIOSORBEN KITOSAN CANGKANG KEONG SAWAH TERHADAP PENYERAPAN ZAT WARNA METHYLENE BLUE iget rais; Nurhaeni; Ruslan; Dwi Juli Pusptasari
KOVALEN: Jurnal Riset Kimia Vol. 5 No. 2 (2019): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Biosorbent studies on methylene blue absorption using chitosan from rice conch shell have been carried out. This research was carried out with variations in contact time of 1, 2, 3, 4, 5, and 6 hours with the aim to determine the contact time required to adsorb Methylene Blue dyes by chitosan from rice conch shell with the highest adsorption capacity. The results showed that the contact time required to adsorb Methylene Blue dye by a chitosan from rice conch shell was 6 hours with the highest adsorption capacity of 85.05%. Keywords: Chitosan, adsorption, Methylene Blue

Perubahan Bilangan Peroksida pada Blending VCO-Ekstrak Likopen Buah Tomat Berdasarkan Perbandingan Rasio dan Lama Penyimpanan: Peroxide Value Changes on Blending of VCO and Extract of Tomato Lycopene Based on Ratio Comparison and Storage Time Muqasyifah; Nurhaeni; Syamsuddin; Khairuddin
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.i2.13132

Utilizing of lycopene extract in VCO has serve as antioxidant agent that protected VCO from oxidation process during storage. Belnding of VCO and tomato lycopene extract has been done that purpose to determine changes in peroxide number in the mixture of VCO-lycopene extract tomatoes based on comparison of ratios and length of storage. Peroxide contents from the mixture of tomato extract with VCO were determined using a spectrophotometric method at a wavelength of 500 nm. The results showed that the best results were obtained at a ratio of 40: 3 (v/w) with peroxide numbers 0.08 meq O2/ kg, 1.38 meq O2/ kg, 1.84 meq O2/ kg, 3.21 meq O2/ kg, 3.46 meq O2/ kg and 3.83 meq O2/ kg respectively. Peroxide numbers increased with increasing storage time, the highest increase occurred at week 3 at a ratio of 40: 1 (v/w) which was equal to 9.62 meq O2/ kg. The addition of lycopene was better at reducing the VCO oxidation process than without the addition of lycopene. Keywords: peroxide value, VCO, lycopene, duration of storage, ratio comparison

Aktivitas Antioksidan Akar Bawang Merah Lokal Palu (Allium cepa Var Aggergatum L.) dengan Berbagai Kepolaran Pelarut: Antioxidant Activity of Local Shallot Roots (Allium cepa Var Aggregatum L.) in Palu City with Various Solvent Nur Faidah; Nurhaeni; Ahmad Ridhay; Jusman; Abd. Rahman Razak; Syaiful Bahri
KOVALEN: Jurnal Riset Kimia Vol. 6 No. 3 (2020): 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.2020.v6.i3.13662

Research on the antioxidant activity of the local onion roots of Palu (Allium cepa Var Aggregatum L.) with various polarity solvents has been carried out. This study aims to determine the potential of Palu local shallot root extract as an antioxidant and determine the IC50 value of the Palu local shallot root antioxidant activity. The method applied in this research is maceration using n-hexane, ethyl acetate, and ethanol. The extracts from each solvent were tested for their antioxidant activity by the DPPH method. The results of the study showed that the IC50 value in n-hexane extract, ethyl acetate extract, and ethanol extract were 579.98 ppm, 518.28 ppm 315.83 ppm and as a comparison used ascorbic acid obtained IC50 of 53.69 ppm. Based on the results obtained, the best antioxidant activity is in polar solvents (ethanol extract) compared to other solvents. Keywords: Antioxidants, roots, Palu local shallots, Allium cepa Var Aggregatum L.

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

Title

Found 69 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 69 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 69 Documents
Search