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All Journal PROSIDING SEMINAR KIMIA REPOSITORY KIMIA Jurnal Kimia Mulawarman ANNALES BOGORIENSES JURNAL ATOMIK Jurnal Riset Teknologi Industri Jurnal Riset Kefarmasian Indonesia Annales Bogorienses
Rudi Kartika, Rudi
Jurusan Kimia Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health

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PENGARUH PENAMBAHAN CaCO3 DAN WAKTU PENYIMPANAN TERHADAP KADAR VITAMIN C PADA PROSES PENGHAMBATAN PEMATANGAN BUAH TOMAT (Lycopersicum esculentum Mill) Rudi Kartika
JURNAL KIMIA MULAWARMAN Vol 8 No 1 (2010)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The aim of this research is to know the influence of CaCO3 addition and storage duration to vitamine C concentrate in ripe obstruction process of tomato (Lycopersicum esculentum Mill). Calcium carbonate(CaCO3) which is added 0; 0.2; 0.4; 0.6 and 0.8 percent of weight and storage duration were 0; 2; 4; 6; 8; 10 and 12 days. Vitamine C was determined by using iodometric titration method. The data obtained were then analized by ANOVA test and LSD test. The result showed that CaCO3 addition could influence vitamine C concentrate in ripe obstruction process of tomato (Lycopersicum esculentum Mill) on standard 5% and 1% with  Ftest > Ftabel (5% and 1%) or F(7.6667) > F(2.50 and 3.60) and storage duration could influence vitamine C concentrate in ripe obstruction process of tomato (Lycopersicum esculentum Mill) on standard 5% and 1% with Ftest > Ftabel (5% and 1%) or F(1204.2222) > F(2.32 and 3.07). Based on the result LSD test on significant standard 5% (0.0143) and 1% (0.0190), optimum vitamine C concentrate were 0.8589 mg/10 g on 0.2% of calcium carbonate (CaCO3) addition and 10 days of storage duration.Keywords : ANOVA, CaCO3, LSD, tomato, vitamine C, storage duration
AKTIVITAS AMILASE, PROTEASE dan LIPASE DARI MADU LEBAH Trigona sp, Apis mellifera dan Apis dorsata Hendric Surya Putra; Winni Astuti; Rudi Kartika
JURNAL KIMIA MULAWARMAN Vol 16 No 1 (2018)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v16i1.433

Abstract

Activities of amylase, protease and lipase from honey Trigona sp, Apis mellifera and Apis dorsata, determination protein concentration and the activity protease done with Bradford method, the determination of the glucose standard and activity amylase done with 3,5-dinitro salicylic acid (DNS) method and activity lipase done with acid-base titration with coconut oil substrate. The honey from Trigona sp has value of the activity amylase and lipase respectively by 0,0136 U / mg and 0,359 U/mg, whereas honey Apis mellifera has activity of protease, amylase and lipase of each 1,22 x 10-6 U/mg; 0,944 U/mg and 0,304 U/mg and then honey Apis dorsata has amylase and lipase activity of each of 0,0645 U/mg and 0,287 U/mg.
AKTIVITAS ANTIHIPERGLIKEMIK DARI EKSTRAK ETANOL DAN n-HEKSANA DAUN KEMBANG BULAN [Tithonia diversifolia A.Gray] PADA TIKUS PUTIH JANTAN Ary Rizki Darmawi; Chairul Saleh; Rudi Kartika
JURNAL KIMIA MULAWARMAN Vol 12 No 2 (2015)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Phytochemical test and antihyperglicemic activity from ethanol extract dan n-hexane extract from kembang bulan (Tithonia diversifolia A.Gray) leaf has been carried out. Based on the test result of phytochemistry of secondary metabolites compounds from kembang bulan (Tithonia diversifolia A.Gray) leaf showed that ethanol extract fraction containing flavonoid, fenolik, alkaloid and saponin. Whereas at n-hexane extract fraction containing alkaloid, saponin and steroid. Antihyperglicemic activity test using the method of glucose tolerance where a white male rats got induced by sucrose. Measurement of blood sugar levels using glucometer and glucose test strip. From this test shows that the most active fractions to reduce blood sugar levels was ethanol extract with a dose of 77 mg/kg BB with percentage of blood sugar levels reduction in the amount of 54.15 % it was close with reduction percentage from acarbose as positive control in the amount of 55.57 %.
Korelasi Kadar Total Logam Pb Terhadap Kadar Protein Pada Udang Putih (Penaeus marguiensis) Yang Diambil Dipesisir Pulau Bunyu Kalimantan Utara Rudi Kartika
JURNAL KIMIA MULAWARMAN Vol 14 No 2 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Research on "Correlation levels of Pb to the total protein content in the white shrimp (Penaeus merguiensis) taken around the coast of North Borneo Bunyu Island". This study aims to determine the total concentration of Pb and protein levels in white shrimp by size and sampling different regions. then the total levels of Pb and protein correlated with Least Square method. Analysis of Pb total metal content by using AAS (Atomic Absorption Spectrophotometer) and analysis of protein content using the Kjeldahl method. In this study, the levels of Pb total in area 1 with an average of 0,738 mg/L, the levels of Pb total in area 2 with an average of 0.926 mg/L, the levels of Pb total area 3 with an average of 0,841 mg/L. The protein content of white shrimp in area 1 with an average of 27,8644%, protein content in area 2 gained an average of 29,0333% and 3 area gained an average protein content of 27,8635%. Correlation levels of Pb total the protein content of the white shrimp (Penaeus merguiensis) r = 0.877
PEMBUATAN BIOETANOL MELALUI FERMENTASI NIRA TEBU (Saccharum officinarum) MENGGUNAKAN Saccharomyces cerevisiae DENGAN PENAMBAHAN VITAMIN B KOMPLEKS SEBAGAI NUTRISI FERMENTASI Wahyu Budi Utama; Rudi Kartika; Erwin -
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Bioethanol is alternative energy produced from the fermentation of carbohydrates like sugar cane juice. The fermentation process is influenced by several factors like nutrition of fermentation. This research to determine the addition weigh (g) of vitamin B complex gr and time of fermentation as theoptimumconditions of fermentaced toproduceethanol with high concentrations. Sugar cane juice as raw material fermented using Saccharomyces cereviceaea with variation additional of vitamin B complex are 0%; 0.1%; 0.2%; and 0.3% (w/v) sugar cane juice fermented during time of fermentation with the variation are 6 day, 7 day and 8 day. Purification of bioethanol by process of distillation.Alcohol content analysis using gas chromatography. The results showed optimumconditions of fermentaced are addition of Vitamin B complex is 0.1% (w/v) and time of fermentation is 7 days to produced ethanol 30.177%.
Isolasi dan Identifikasi Senyawa Kimia dari Ekstrak n-heksan Batang Benalu Tanaman Jeruk (Dendrophtoe pentandra (L.) Miq.) rizky maulida amalia hanif; Rudi Kartika; Partomuan Simanjuntak
JURNAL KIMIA MULAWARMAN Vol 14 No 1 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Telah dilakukan penelitian isolasi dan identifikasi senyawa kimia dari ekstrak n-heksan batang benalu tanaman jeruk (Dendrophtoe pentandra (L.) Miq.). Penelitian ini dilakukan dengan metode maserasi dengan pelarut n-heksan, etil asetat, etanol dan air, uji fitokimia, uji mortalitas larva udang dengan metode BSLT (Brine Shrimp Lethality Test) serta isolasi dengan kromatografi kolom dan identifikasi dengan menggunakan spektrofotometer Fourier Transform Infra Red (FT-IR) dan Kromatografi Gas – Spektrometri Massa (KG-SM). Dari hasil uji mortalitas larva udang didapatkan bahwa ekstrak n-heksan adalah ekstrak yang paling aktif kemudian dilanjutkan pada proses isolasi dan diperoleh isolat n-heksan 3.2 yang memiliki nilai toksisitas (LC50) sebesar 92,197 ppm. Berdasarkan hasil analisis dengan spektrofotometer FT-IR dan KG-SM senyawa kimia yang diduga terdapat dalam ekstrak n-heksan batang benalu tanaman jeruk (Dendrophtoe pentandra (L.) Miq.) adalah senyawa Stigmasterol.
PEMBUATAN ETANOL DARI BIJI CEMPEDAK (Artocarpus champeden sp.) DENGAN HIDROLISIS MENGGUNAKAN ENZIM ALFA AMILASE DAN GLUKOLASE FERMENTASI Saccharomyces cerevisiae Wahyu Teguh Santoso; Alimuddin -; Rudi Kartika
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Telah dilakukan penelitian yang bertujuan untuk mengetahui potensi dari biji cempedak (Artocarpus champedan sp.) sebagai bahan baku pembuatan etanol, sekaligus mengetahui apakah variasi penambahan nutrisi ammonium sulfat dan lamanya waktu fermentasi dapat meningkatkan konsentrasi etanol yang dihasilakan. Proses hidrolisis pati dilakukan secara enzimatis melalui tahap liquifikasi dan sakarifikasi dengan menggunakan enzim alfa-amilase dan glukolase yang akan mengkonversi pati menjadi glukosa. Hasil hidrolisis ditambahkan amonium sulfat sebagai sumber nutrisi dengan variasi 0,1 %, 0,3 % dan 0,5 % (b/v) kemudian difermentasi dengan variasi waktu 4, 5 dan 6 hari. Konsentrasi etanol tertinggi berada pada penambahan nutrisi amonium sulfat 0,3 % (b/v) dengan waktu fermentasi 6 hari sebesar 8,233 %.
PEMBUATAN BIOETANOL DARI BIJI JEWAWUT (Setaria italica) DENGAN PROSES HIDROLISIS ENZIMATIS DAN FERMENTASI OLEH Saccharomyces cerevisiae I Wayan Arief Pradana Putra; Rudi Kartika; Aman S. Panggabean
JURNAL KIMIA MULAWARMAN Vol 14 No 2 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Bioethanol production as a biofuels successor fossil fuels from jewawut seed (Setaria italica) through enzymatic hydrolysis process and fermentation use Saccharomyces cerevisiae has been carried out. This research aimed to determine levels of bioethanol production by various concentration of nutrients added and variation time of fermentation. Hydrolysis process by enzymatic through a liquefaction phase with -amylase and saccharification phase with gluco-amylase. Fermentation process by Spirulina sp. as a sources of nutrients. The result of hydrolysis was fermented by Spirulina sp. added with various at 0,5%; 1,05 and 1,5% (w/v), and then with variation time of fermentation at 5, 7 and 9 days. The highest concentration of bioethanol obtained are in addition of Spirulina sp. at 1,0% (w/v) for 7 days. The result of concentration obtained from density method was 88% and from gas chromatography method was 93,096%.
PENGARUH VARIASI WAKTU FERMENTASI TERHADAP KADAR LAKTOSA, LEMAK, pH DAN KEASAMAN PADA SUSU SAPI YANG DIFERMENTASI MENJADI YOGURT Yeni Agustina; Rudi Kartika; Aman S Panggabean
JURNAL KIMIA MULAWARMAN Vol 12 No 2 (2015)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Yogurt is a fermentation milk product with bacteria Streptococcus thermophillus and Lactobacillus bulgariccus which has been commonly used in the process of making yogurt. The purpose of this study was to determine the effect of fermentation on the levels of lactose, fat, pH, acidity in yogurt. Determination of lactose in volumetric according Gohr, fat content carried by the Gerber method, using a pH meter pH and acidity values using titration.Keywords : lactose, fat, pH, acidity, fermentation, yogurt.
Pengaruh Pemberian Ekstrak Etanol Daun Kecapi (Sandoricum koetjape (Burm.f.) Merr.) Terhadap Penurunan Kadar Kolesterol Total pada Mencit Jantan (Mus musculus) Rudi Kartika
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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The research about utilization of ethanol extract form leafkecapi (Sandoricum koetjape (Burm.f.)Merr.)has been done, it proved could decrease  total cholesterol levels in male mice (Mus musculus). In this research sample macerated with ethanol 96% and then concentrated by rotary evaporator, and gained 15.6% of yield. Based on the results of phytochemical test, secondary metabolites compound that contained in bark kecapi are alkaloid, flavonoid, triterpenoid, steroid, phenolic and saponin. On antihiperkolesterolemia activity test by using male mice, there are several treatments that negative control (-), positive control (+) and three treatment with different doses i.e. a low doses (9.5 mg/kg BB), middle doses (19 mg/kg BB) and high doses (38 mg/kg BB). The parameter measured was blood serum of male mice by using a Cholesterol Test Strips. From this test it showed that the effectiveness of decreased total cholesterol level doses of 19 mg/kg BB showed total cholesterol level under 100 mg/dL. Keywords:      Leaf kecapi (Sandoricum koetjape (Burm.f.) Merr.), Phytochemicals test, Total cholesterol levels, Cholesterol test strips.
Co-Authors Abimanyu, Priem Reyhan Adha, Laila Sufina Aditya, Roy Admaja, Junior Try Adnyana, Ketut Cahyadi Ahmad Suryadi, Ahmad Alimuddin - Alimuddin - Aman S Panggabean Aman S Panggabean, Aman S Aman S. Panggabean Aman Sentosa Panggabean Andi Kurniawan Annuary Laksono Arifwan - Ary Rizki Darmawi Ary Rizki Darmawi, Ary Rizki Aswad, Muhammad Raihan Aswat, Muhammad Raihan Aswat, Raihan Azka, Andi Aulia Urrahman Bayu Iskandar Bohari Yusuf Bohari Yusuf Bonifasius, Bonifasius Bustanussalam Bustanussalam Bustanussalam Bustanussalam, Bustanussalam Chairul Saleh Chairul Saleh Corebima, Damianus Develistur Delina Khairunnisa Dilo Jhosea Luciano Eduardo Dimas P, Riansyah Djihan Ryn Pratiwi, Djihan Ryn Dwi Lestari Dwi Susanto Edi Novian Jaya Edman Tandirerung Eka Damayanti Setyningrum Eka Setia Rini Eka Siswanto Syamsul Eno Julia Shafarini Erwin - Erwin Erwin Eva Marliana, Eva Fahmi, Miraz’hul Fahmi, Miraz’ul Farida Farida Fathur Rahman Fathur Rahman fatur Rahman, fatur Fauzi Rachman Fauzi Rachman Firmansyah - Fitriana, Mila Gelung, Antonius Hamsiana - Hendra Priatna Hendric Surya Putra I Wayan Arief Pradana Putra Iskandar, Bayu Jaya, Edi Novian Jofri, Dirga Hosea Seventeen Jofri, Dirga Hosea Seventin Julianto, Faisal Reja Kalmud Nia Tekha Laksono, Annuary Lila Karina Nuryanti Lilik Sulastri Lumban Gaol Veronica Destiana Mahrus, Muhammad Haissul Maria Amelia Kristianingrum Marliani, Nelly Marlina, Eva Mila Fitriana Mira Wahyuni Mira Wahyuni, Mira Miraz’hul Fahmi Muhammad Adhitya Rizkirullah Muhammad Haissul Mahrus Muhammad Harry Rahmadan Muhammad Raihan Aswat Muhammad Sigit Ariski Nasution, Safridah Hannum Noor Hindryawati Noor Hindryawati, Noor Nur Asmawati Nur, Istianti Irfa'a Octavianus, Riyan Octavianus, Riyan Partomouan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Prastiwi, Mela Pratama, Riansyah Dimas Rahmat Gunawan Rahmat Gunawan Rahmat Gunawan Rezky Estrada Ricard, Romoldus Jonius Rico Ramadhan, Rico Rida Awliyani Ripaldy Apriansya Riyan Octavianus Rizkirullah, M. Adhitya Rizkirullah, Muhammad Adhitya Rizkirullah, Muhammad Aditya Rizkullah, Muhammad Adhitya rizky maulida amalia hanif Ruga, Ritbey Rutdianti Rutdianti Rutdianti, Rutdianti Sahriani, Andi Saibun Sitorus Sanian, Sanian Sari Setianingsih Setianingsih, Sari Setyningrum, Eka Damayanti Shafarini, Eno Julia Shaparuddin Nur Arifullah Simanjuntak, Partomuan Solman, Solman Suaibatul Aslamiah Subur P Pasaribu Sudrajat Sudrajat Sukanadi, I Putu Sukma Wiratama Sulistiani, Oktaviana Dewi Sulistiyawati, Rizki Ramadhani Syelvia Lousiana Kalauw Syelvia Lousiana Ningsih Kalauw Tandirerung, Edman Tanjung, Faisal Trisnawati, Eka Elly Ulfa, Yulyanti Sartika Utami, Nanda Putri Wahyu Budi Utama Wahyu Budi Utama Wahyu Teguh Santoso Wahyu Teguh Santoso Wajdie, Farid Winni Astuti Winni Astuti, Winni Wulan Verani Yeni Agustina Yeni Agustina, Yeni Yerwanto Ilang Yerwanto Ilang, Yerwanto