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All Journal International Journal of Public Health Science (IJPHS) HAYATI Journal of Biosciences Jurnal Teknologi Dan Industri Pangan Jurnal Pengolahan Hasil Perikanan Indonesia JOURNAL OF COASTAL DEVELOPMENT Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Kesehatan Lingkungan indonesia Agrointek Indonesian Journal of Educational Review (IJER) Cannarium (Jurnal Ilmu-ilmu Pertanian) Jurnal Riset Industri agriTECH Jurnal Pendidikan Biologi Indonesia Jurnal Industri Hasil Perkebunan Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Environment and Sustainability Indonesian Journal of Chemistry Indonesian Journal of Agricultural Research Jurnal Teknologi & Industri Hasil Pertanian Food Science and Technology Journal (Foodscitech) Jambura FIsh Processing Journal Journal of Tropical AgriFood Jurnal Teknologi Hasil Pertanian Jurnal Mutu Pangan : Indonesian Journal of Food Quality Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Jurnal Riset Teknologi Industri Food ScienTech Journal Journal Of World Science Jurnal Natural Teknologi dan Industri Pertanian Indonesia Jurnal Pertanian Khairun (JPK) Penelitian Gizi dan Makanan (The Journal of Nutrition and Food Research) ABDIKU : Jurnal Pengabdian Masyarakat Universitas Mulawarman

Krishna Purnawan Candra

Departement Of Agricultural Poduct Technology, Faculty Of Agriculture, Mulawarman University And Doctoral Study Program Of Environmental Science, Postgraduate Program, Mulawarman University, Jl. Sambaliung, Kampus Gunung Kelua, Samarinda 75119

Author-ID : 2883309

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Profil Organoleptik Dan Kandungan Gizi Naget Ikan Gabus Yang Difortifikasi Kecambah Kacang Hijau Yuliani Yuliani; Muhammad Fahri; Marwati Marwati; Krishna Purnawan Candra
Jambura Fish Processing Journal Vol 3, No 2 (2021): VOLUME 3 NOMOR 2, JULY 2021
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jfpj.v3i2.11051

Tujuan penelitian ini adalah untuk menganalisis profil organoleptik, kandungan gizi, dan total kalori Naget Ikan Gabus (NIG) dengan fortifikasi Kecambah Kacang Hijau (KKH). Penelitian ini merupakan penelitian faktor tunggal dalam rancangan acak lengkap, dengan enam perlakuan dan setiap perlakuan diulang sebanyak 3 kali. KKH yang ditambahkan adalah 0, 5, 10, 15, 20, dan 25% dari jumlah daging ikan gabus. Data kandungan gizi dan total kalori dianalisis menggunakan Analysis of Variance dilanjutkan dengan uji beda nyata terkecil pada taraf α 5%, sedangkan data organoleptik dianalisis secara deskriptif berdasarkan frekuensi terbanyak (modus). Hasil penelitian menunjukkan bahwa fortifikasi KKH sampai dengan 25% memberikan pengaruh nyata terhadap karakteristik organoleptik dan gizi NIG (p0,05). NIG dengan penambahan KKH sampai dengan 10% mendapat respons disukai untuk atribut aroma, rasa, dan tekstur, sedangkan warna disukai hingga penambahan kecambah kacang hijau sebanyak 25%. NIG yang dihasilkan berwarna kuning keemasan hingga kuning kecokelatan. Semakin tinggi penambahan konsentrasi KKH menyebabkan respons sensoris mutu hedonik untuk aroma dan rasa ikan gabus menurun, sebaliknya respons sensoris mutu hedonik untuk aroma dan rasa KKH menjadi meningkat. Semakin besar penambahan KKH juga meningkatkan kelembutan tekstur NIG, serta meningkatkan kadar Abu; Air, Lemak; dan Protein, tetapi menurunkan kadar Karbohidrat dan total kalori NIG.

Optimization Method for Bioethanol Production from Giant Cassava (Manihot esculenta var. Gajah) Originated from East Kalimantan Krishna Purnawan Candra; Kasma Kasma; Ismail Ismail; Marwati Marwati; Wiwit Murdianto; Yuliani Yuliani
Indonesian Journal of Chemistry Vol 19, No 1 (2019)
Publisher : Universitas Gadjah Mada

Here is the first report of bioethanol production from giant cassava, a variety of cassava originated from East Kalimantan. Hydrolysis on freshly grated cassava with two different acids was studied separately. The experiment was conducted as a single factor experiment in Completely Randomized Design (CRD) with five treatments (0.0–1.0 M of acid solution), each replicated three times. Reducing sugars, unhydrolyzed substance (fibers), and hydrolysate clarity was determined. The experiment was continued by studying fermentation condition using factorial experiment (2 x 4) in CRD. The first factor was starter concentration (Saccharomyces cerevisiae, 5 and 10%) and the second factor was fermentation time (2–11 days). Biomass and alcohol content in fermentate were determined. The data were analyzed by ANOVA, excluding alcohol content that analyzed by the non-parametric statistic. Optimization using regression analysis showed that hydrolysis by HCl was more effective than H2SO4. Hydrolysis solution of 0.58 M HCl gave an optimum reducing sugar in hydrolysate (5.6%), which equivalent to a yield of 28.18%. Starter concentration affected significantly on biomass and alcohol content (p < 0.001) of fermentate, while fermentation time affected significantly only on alcohol content (p < 0.001). Optimum condition of cassava hydrolysate fermentation (100 mL) was using 5% yeast for 8 days, which gave a yield of 14.17% bioethanol.

Rendemen dan kualitas minyak nilam (Pogostemon cablin Benth.) dari Kalimantan Timur serta analisis tekno-ekonominya Nur Amaliah; Krishna Purnawan Candra; Viky Bayu Parytha; Arif Kurniawan; Tazri Amrullah; Bernatal Saragih; Hudaida Syahrumsyah; Yuliani Yuliani
AGROINTEK Vol 16, No 2 (2022)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v16i2.12421

This study aimed to determine the patchouli oil (PO) business in the province of East Kalimantan based on data on the yield and quality of PO produced from several PO production centers in East Kalimantan. Bangun Rejo Village in Kutai Kartanegara Regency, Sepaku I Village and Argo Mulyo Village in Penajam Paser Utara Regency were selected as samples in this study. PO extraction from plant samples from each village was carried out using a laboratory-scale wet distillation method (3 kg leaves, branches) per batch. Each batch was carried out with six replications using different samples. The sample of PO produced by farmers was used as a control. The results showed that the yield of PO from the three villages reached 1.25-1.76%, while the quality of the oil showed an acid number of 2.407-4.747%, ester number 11.843-16.768%, PO content 33.670-43.693%, iron content 1.096-8.538 mg/kg, density 0.614-0.822 g/cm3, refractive index 1.509 nD20 and light-yellow to yellow. PO produced by farmers has an acid number of 6.311-11.920%, ester number 16.269-19.822%, ethanol solubility 1:5-1:9, patchouli alcohol content 31.96-40.89%, iron content 0.460-1.105 mg/kg, density 0.946-1,509 g/cm3, refractive index 1.508-1.510 nD20 and yellow to dark yellow in colour. Techno-economic analysis (using laboratory-scale extraction yield data) shows that PO refining business in the two villages is feasible to be carried out with B/C values of 3.62 and 6.37 for Sepaku I Village and Bangun Rejo Village. Still, it is not feasible for Argo Mulyo (B/C value of 0.842)

Fermentasi Terinduksi Acetobacter aceti dan Saccharomyces cerevisiae untuk Industri Kakao di Kalimantan Timur Anton Rahmadi; Yeni Yunus; Maria Ulfah; Krishna Purnawan Candra; Sony Suwasono
Jurnal Riset Teknologi Industri Vol.15 No.2 Desember 2021
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26578/jrti.v15i2.6997

Penelitian ini bertujuan untuk melakukan observasi fermentasi kakao di skala petani menggunakan inokulan S. cerevisiae (Sc), A. aceti (Aa), dan kombinasi keduanya yang dilihat dari pengamatan harian angka lempeng total (ALT), populasi total bakteri asam laktat (BAL), populasi total kapang-khamir (Total Yeast-Mold, TYM), pH, total asam, aktivitas antioksidan dan spektrum FTIR. Pengamatan harian dilakukan selama empat hari periode fermentasi. Pengukuran FTIR dilakukan pada hari pertama dan hari terakhir fermentasi. Aktivitas antioksidan berdasarkan reduksi DPPH diukur setelah proses fermentasi berakhir. Penelitian ini dilakukan selama delapan bulan dengan dua kali pengulangan. Hasil menunjukkan idak terdapat perbedaan signifikan terhadap total bakteri, total BAL, dan total Kapang-Khamir selama hari pengamatan fermentasi. Total asam hasil akhir fermentasi tidak kurang dari 0,08±0,01% dengan pH biji kakao berkisar pada 4,31 hingga 5,92. Aktivitas antioksidan hasil fermentasi kakao yang cukup baik diperoleh dengan inokulan kombinasi S. cerevisiae (1% v/b) dan A. aceti (1% v/b). Berdasarkan observasi spektrum FTIR pada zona identifikasi, penggunaan kombinasi inokulan menunjukkan hasil yang konsisten mendekati kualitas kakao komersial. Penggunaan gabungan inokulan Sc dan Aa direkomendasikan untuk digunakan dalam upaya meningkatkan kualitas fermentasi kakao oleh petani skala kecil.

Isolasi Bakteri Penghasil Lipase dengan Kemampuan Esterase untuk Produksi Metil Ester Arba Susanty; Fitriani Fitriani; Krishna Purnawan Candra
Jurnal Riset Teknologi Industri Vol 7 No 14 Desember 2013
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Lipase (triasilglieserol hidrolase, EC 3.1.1.3) is an enzyme that can hydrolyze mono-and di and tri acylglycerols (TAG) into free fatty acids, glycerol. Lipase has esterase activity that can form between free fatty acid esters with alcohols. Microorganisms that produced lipase spread from molds, yeasts, and bacteria. Four isolates of bacterial lipolytic ( SG_T , SG_Z , DS_T , and DS_Z ) that has the ability esterase for fatty acids from olive oil and methanol have been isolated from typical Indonesian food containing high oil (fried cassava , dodol salak). Media isolation which used are tributyrin agar –tributyrin and tributyrin - olive oil. Fried cassava isolates have a tendency to live in an acidic pH environment , while isolates dodol salak (fruit snake) has a tendency to live at alkaline pH . All isolates showed that the optimum production of lipase (from 0.45 to 0.73 U m ) was achieved in the range of 32 -hour incubation time (room temperature ) . Fried cassava isolates showed the highest esterase activity, which produce the largest methyl ester is 15.303%. This isolates is a potential lipolytic bacterial as a lipase producer for production of fatty acid methyl ester ( FAME ) / enzymatic biodiesel

THE TEACHER PROBLEMS ANALYSIS OF CRITICAL THINKING SKILLS, LEARNING MOTIVATION AND STUDENT LEARNING OUTCOMES Ria Oktaviani; Elsje Theodora Maasawet; Krishna Purnawan Candra
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 8 No 2 (2021): Indonesian Journal of Educational Review
Publisher : Program Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

The low critical thinking skills, learning motivation and student learning outcomes are the background of this observation. Observations were made on biology teachers and class XI students at SMA Negeri 17 Samarinda, SMA Negeri 5 Samarinda, and SMA Negeri 1 Long Ikis. Based on the results of the teacher and student response questionnaires, several problems were obtained in classroom learning, including the lack of student motivation, due to conventional learning (lecture methods and less variety), the lack of opportunities for students to express ideas, and the lack of learning resources. The purpose of this study was to examine problems related to the level of critical thinking skills, learning motivation, and student learning outcomes. The research subjects were biology teachers and class XI students at SMA Negeri 17 Samarinda, SMA Negeri 5 Samarinda, and SMA Negeri 1 Long Ikis. The results showed that the critical thinking skills of SMA Negeri 17 Samarinda students were 70.68% (medium predicate), SMA Negeri 5 Samarinda was 71.49% (medium predicate) and SMA Negeri 1 Long Ikis was 71.09% (medium predicate). Furthermore, the data analysis of students' learning motivation of SMA Negeri 17 Samarinda, SMA Negeri 5 Samarinda, and SMA Negeri 1 Long Ikis respectively were as follows 78.64%, 79.92%, and 78.05% with the same predicate, namely good. Then the student learning outcomes showed SMA Negeri 17 Samarinda was 77.73% (enough predicate), SMA Negeri 5 Samarinda was 78.27% (enough predicate) and SMA Negeri 1 Long Ikis was 78.35% (enough predicate). students at SMA Negeri 17 Samarinda, SMA Negeri 5 Samarinda, and SMA Negeri 1 Long Ikis it can be concluded that the results of critical thinking skills, learning motivation, and student learning outcomes without using learning media have a major influence on the learning process.

Pengaruh formula tepung terigu dan tepung pisang talas (Musa paradisiaca var. sapientum L.) terhadap karakteristik sensoris dan kimia crackers Sulistyo Prabowo; Krishna Purnawan Candra; Andi Syaiful Amin
Journal of Tropical AgriFood Volume 4, Nomor 1, Tahun 2022
Publisher : Jurusan Teknologi Hasil Pertanian Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35941/jtaf.4.1.2022.6837.60-66

Produk crackers telah dikembangkan tidak hanya sebagai camilan, tetapi juga sebagai produk pangan olahan melalui penambahan bahan lain dari berbagai jenis tepung untuk memperbaiki karakteristik fisika-kimia dan sensorisnya. Penelitian ini dilakukan untuk mengetahui pengaruh formula komposit tepung terigu (TT) dan tepung pisang talas (TP) terhadap sifat sensoris (hedonik dan mutu hedonik) dan sifat kimia (kadar air, kadar abu, kadar protein, kadar lemak dan kadar karbohidrat) crackers. Penelitian ini menggunakan rancangan acak lengkap dengan lima perlakuan, yaitu 100% TT, 25% TP, 50% TP, 75% TP, dan 100% TP. Data dianalisis dengan sidik ragam dilanjutkan dengan Uji Beda Nyata Jujur. Hasil penelitian ini menunjukkan bahwa formula tepung komposit berpengaruh nyata (p<0,05) terhadap karakteristik hedonik dan mutu hedonik, serta karakteristik kimia (kadar air, lemak, abu, protein, dan kadar karbohidrat) crackers yang dihasilkan. Crackers dengan formula 25% TP mendapatkan respons sensoris hedonik keseluruhan yang berbeda tidak nyata dengan crackres dari 100% TT, yaitu suka (skor 6 dari 1-7 untuk sangat tidak suka – sangat suka) dengan karakteristik hedonik mempunyai skor 5 (agak suka) untuk warna, dan skor 6 untuk aroa, rasa, dan tekstur. Respons mutu hedoniknya adalah berwarna kuning cerah kecokelatan, agak beraroma pisang, asin dan berasa pisang, dan bertekstur renyah. Karakterisitk kimia dari crackers tersebut adalah mempunyai kadar air 4,52%, kadar protein 9,07%, kadar lemak 12,75%, kadar karbohidrat 71,11%, dan kadar abu 2,55%.

Study of white frangipani flower and bitter grape stem ethanol extract combination on antibacterial and antioxidant activities KRISHNA PURNAWAN CANDRA; WIJAYANTI KUSUMA WARDHANI; ANTON RAHMADI; MIFTAKHUR ROHMAH; YULIANI YULIANI
Jurnal Natural Volume 20 Number 3, October 2020
Publisher : Universitas Syiah Kuala

Frangipani flower (Plumeria acuminata) and bitter grape (Tinospora crispa L. Miers) stem extract alone shows antimicrobial and antioxidant activities. However, there is a limited report about the actions from the combination of both extracts. Combinations of ethanol extract of white frangipani flower (EFF) and ethanol extract of the bitter grape stem (EBS), each of 0, 1, 2, and 3% were tested for inhibition against Staphylococcus aureus growth and DPPH (1,1-diphenyl,2-picrylhydrazyl) free radicals. A yield of 3.17 and 2.62 g of EFF and EBS, respectively, were resulted from 100 g of dried powdered of the white frangipani flower and bitter grape stem using 200 mL of absolute ethanol. The antimicrobial test was assayed using a 10% stock solution of extract diluted in water. The combination of EFF and EBS showed a synergistic effect on antimicrobial activity, but it proved an antagonistic effect on antioxidant activity. The combination of EFF 3% and EBS 3% showed the highest inhibition index on the S. aureus growth , i.e. 2.02±0.06, which is higher than the inhibition index of Amoxycillin 2%, i.e. 1.85±0.09. The highest antioxidant activity showed by 1% EFF alone (57.5 ± 0.60%), while the lowest was from the combination of EFF 1% and EBS 3% (23.4±0.30%).

Colorimeter design for dry food-products inspection using TCS3200 sensor and Arduino Mega-2560 Sulistyo Prabowo; Chandra Kadwa Utama Sutrisno; Krishna Purnawan Candra; Anton Rahmadi; Yuliani Yuliani
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 6, No 2 (2023)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2023.006.02.4

This report describes the successful construction of a Colorimeter CK20.1 prototype using a TCS3200 sensor based on the Arduino Mega-2560 microcontroller for solid foodstuffs inspection. The sample color exposed is presented in RGB form. In this experiment, a commercial colorimeter (ColorFlex EZ Spectrophotometer, with the output, is in L*a*b* form) was applied as a validator of the prototype quality performance on color reading for green beans, wheat flour, palm sugar, ground coffee, and cocoa powder. Data were analyzed for mean comparison using t-test or Mann-Whitney for normally or not normally distributed data, respectively. Before data analysis, the RGB data provided by the prototype was transformed to L*a*b* by the template available from colormine.org and vice versa for the data provided by the ColorFlex EZ. The results showed that color component measurement data from the Colorimeter CK20.1 prototype and the Color FlexEZ were significantly different (p<0.05) for all the foodstuffs observed; however, the color produced by each color component is likely very similar visually. Further development of the CK2.1 prototype is being done to provide a cheap and practical color detector.

OPTIMASI RENDEMEN PADA EKSTRAKSI MINYAK KELAPA (Cocos nucifera L.) DENGAN METODE WET RENDERING Krishna Purnawan Candra; Bhibies Arghita Nindyana
Cannarium Vol 21, No 2 (2023)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/cannarium.v21i2.6919

Optimasi rendemen minyak kelapa telah dilakukan pada ekstraksi dengan metode wet rendering. Interaksi dua faktor dalam ekstraksi santan dipelajari menggunakan 250-750 mL air dengan suhu 28-65oC. Percobaan dilakukan menggunakan Response Surface Methodology (RSM) dengan Central Composite Design. Hasil penelitian menunjukkan bahwa suhu air berpengaruh tidak nyata (p0,05) terhadap rendemen minyak, tetapi jumlah air dan interaksinya keduanya berpengaruh nyata (p0,05). Rendemen tertinggi 14,48% diperoleh pada ekstraksi menggunakan kombinasi jumlah dan suhu air sebesar 750 mL dan 28oC. Model persamaan yang cocok adalah 2FI, yaitu Rendemen (%) = 10,66 + 0,2338 A + 2,72 B – 2,10 AB (A = suhu air, oC; B = jumlah air, mL).

Co-Authors Abdul Hakim Agus Setiawan Ainudin Ainudin Alberth Parlindungan Alfisyahrani Aloysius Hardoko Andi Syaiful Amin Anis Sofianur Anton Rahmadi Anton Rahmadi Apriadi, Rimbawan Arba Susanty Arboby Gunawan Ariana Ariana Arif Kurniawan Asih Ika Suryandari Aswita Emmawati Bernatal Saragih Bernatal Saragih Bernatal Saragih Bhibies Arghita Nindyana Chandra Kadwa Utama Sutrisno Daniel Tarigan David Patra Didimus Tanah Boleng Elisa Maulidya Putri Elsje Theodora Maasawet Emmawati, Aswita Erna Handai Yani Esti Handayani Hardi Fitriani . Fitriani Fitriani Hadi Suprapto Hamka Haris Retno Susmiyati Hendra Saputra Hendri Wardana Herliani Hosana, Onedha Hudaida Syahrumsyah Hudaida Syahrumsyah Irma Febriandini Ismail Ismail Iwan Muhamad Ramdan Jayanti, Marni Kasma Kasma Kusdiyanto, Hery Lambang Subagiyo LESTARI, GISTI MALINDA Lisnawati Lisnawati Makrina Tindangen Mandalia, Resi Maria Ulfah Marwati Marwati Masitah Masitah - MASRUHIM, MUHAMMAD AMIR Massawet, Elsje Theodore Maulida Rachmawati Miftakhur Rohmah, Miftakhur Muhammad Arifin Muhammad Fahri Muhammad Sultan Neni Suswatini Nindyana, Bhibies Arghita Nooryani Nooryani Nur Amaliah Nurul Hidayati Nurul Puspita Palupi Onedha Hosana PETER ROGGENTIN Prabowo, Sulistyo Prabowo, Sulistyo Purwanto, Herry Ratna Setia Ningsih Rezeki, Kartika Sri Ria Oktaviani Rinten Anjang Sari Rita Diana ROLAND SCHAUER Sari, Eirine Yemeima Sarinah . Sarwono . Solly Aryza Sukartiningsih Sukmiyati Agustin Susanty, Arba Suwasono, Sony Taufan Purwokusumaning Daru, Taufan Purwokusumaning Tazri Amrullah Tholhah Tholhah Vandalita Rambitan Viky Bayu Parytha WIJAYANTI KUSUMA WARDHANI Wiwit Murdianto Yani, Erna Handai Yeni Yunus Yudha Agus Prayitno Yuliani Yuliani Yuliani, Yuliani Yuliarta, Sri Roma Yusak Hudiyono, Yusak

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