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NOOR HUBDRYAWATI
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Jurnal Kimia Mulawarman
Published by Universitas Mulawarman
ISSN : 16935616     EISSN : 24769258     DOI : DOI: https://doi.org/10.30872/jkm
Core Subject : Science,
Chemistry
Journal of Kimia Mulawarman is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of chemistry, including educational chemistry and applied chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 11 Documents
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Search results for , issue "Vol 13 No 2 (2016)" : 11 Documents clear
AKTIVITAS ANTIOKSIDAN SENYAWA FLAVONOID DARI Macaranga pearsonii Merr. Eva Marliana; Tjitjik Srie Tjahjandarie; Mulyadi Tanjung
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Tiga senyawa flavanon , 4’-O-metil-8-isoprenileriodiktiol (1), 4’-O-metil-8-isoprenilnaringenin (2) and Lonkokarpol A (3) , telah diisolasi dari ekstrak metanol daun Macaranga pearsonii Merr. Elusidasi struktur senyawa berdasarkan data spektroskopi UV, 1D and 2D NMR, and HREISMS. Senyawa 1 – 3 ditentukan aktivitas antioksidannya terhadap peredaman radikal bebas 2,2-diphenyl-1-picrylhydrazyl (DPPH), dengan nilai IC50 adalah 536,89 μM, 1226,11 μM dan 426,43 μM.
Sintesis Sabun Lunak Yang Mengandung Polihidroksi Dari Minyak Biji Kakao (Theobroma cacao,L) Chairul Saleh; Daniel Tarigan; Rabiatul Adhawiyah Al-Idrus
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The research about synthesis of Soft Soap Containing polyhydroxy from Cocoa seed Oil, beginning with the manufacture of the polyhydroxy compound wherein the polyhydroxy compound is obtained through a process of epoxidation and hydroxylation by reacting oils cocoa beans with peroxide acetic acids (peroxy acetate was obtained from the reaction of glacial acetic acid with hydrogen peroxide) with an acid catalyst sulfate followed by oxirane ring opening process (hydrolysis) at a temperature of 40-45 oC for 2 hours, the results obtained with the reaction yield of 60 %. In the form of a mixture of soft soap is obtained by saponification of compounds polyhydroxy with Potassium Hydroxide at a temperature 70-75 oC for 1 hour with a yield of 86,45 %. Polyhydroxy compound and soap from the cocoa bean oil was analyzed by FT-IR spectrophotometer. Respectively iodine from the cocoa bean oil 102,93mg I / gram of oil and polyhydroxy compound is 20,21 mg I / gram of oil. HLB of soap Software of oil and polyhydroxy cocoa beans from the cocoa bean oil is determined by titration method and obtained HLB of soft soap from the cocoa bean oil was 8.74 while the polyhydroxy from cacao seed oil is 10,94.
BIOAKTIVITAS DAN KANDUNGAN GENUS Callicarpa 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

allicarpa L is one genus of the family Lamiaceae. Callicarpa consisting of approximately 150 species such as shrubs and trees. Various species of Callicarpa is widely used in traditional medicine and it was potentially as antinociceptive, antioxidant, antimicrobial and thrombolytic drugs. Based on various reports results of previous studies have found various types of secondary metabolites from plants Callicarpa such as terpenoids, steroids and flavonoids. Some of these compounds can be developed as an anti A. aegypti mosquito, Anopheles stephensi, and natural pesticides.
Kajian Adsorpsi Krom Dalam Limbah Cair Penyamakan Kulit Hesty Eka Mayasari; Muhammad Sholeh
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Chromium in tannery wastewater is still a problem for the industry. Treatment of tannery wastewater using conventional way is not enough. Alternative wastewater treatment such as adsorption methods is needed. This review summarizes and discusses the state of the art of research on adsorbents in addition to commercial activated carbon for tannery wastewater treatment.
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%.
PENINGKATAN KEPOLARAN ASAM LINOLEAT DALAM BENTUK AMIDA MENJADI N-etanol-9,10,12,13,15,16 HEKSAHIDROKSI OLEIL-AMIDA Daniel Tarigan
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Asam linolenat dari minyak nabati diesterifikasi dengan metanol menggunakan katalis asam dan dilanjutkan dengan amidasi dengan etanolamina menghasilkan alkanolamida selanjutnya dilakukan epoksidasi dengan tert-butyl hidroperoksida dan bantuan katalis peroksigenase dipanaskan pada suhu 40oC selama ± 12 jam sambil dialirkan gas Nitrogen UHP 99% untuk menghasilkan senyawa epoksi alkanolamida oktadekanoat campuran yang selanjutnya dihidrolisis dengan HCl 0,1 N untuk menghasilkan senyawa poliol alkanolamida heksahidroksi oktadekanoat. Uji HLB dari surfaktan alkanolamida heksahidroksi oktadekanoat (N-etanol-9,10,12,13,15,16 heksahidroksi oleil amida) sebesar 14,13 Oleh karena itu senyawa poliol ini dapat digunakan sebagai pengemulsi sistem o/w. Seluruh hasil reaksi dikonfirmasikan secara analisis spektroskopi FT-IR, 1H-NMR, GC-MS dan analisis KLT sesuai dengan keperluan.
KARAKTERISASI DAN SKRINING FITOKIMIA DAUN KEREHAU (Callicarpa longifolia Lamk.) Supomo -; Risa Supriningrum; Risaldi Junaid
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Plants kerehau empirically used to treat swelling, abdominal pain and diarrhea. Kerehau leaf research data related to quality botanicals have not done, this causes the botanicals and extracts do not have a standard. The purpose of this study to determine the chemical characterization and the compound leaf extract botanicals and kerehau. The research object leaves kerehau obtained from the village of Muara District Muara Aloh Muntai, made crude drug samples are extracted using maceration method by ethanol 70%. Then examined the macroscopic, microscopic, these characterizations include: water assay, assay of soluble extract in water, soluble extract assay of ethanol, the determination of ash content and assay of acid insoluble ash is then performed phytochemical screening. Data were analyzed using descriptivemethods. The characterization results simplicia, macroscopic kerehau has green leaves, pointed leaf tip, leaf base tapering, serrated leaf edge, the shape of elongated leaves, a single leaf, leaf arrangement pinnate, pinnate leaves arrangement of bones, flesh soft thin leaves, leaf length 10,5- 14 cm and 4-6 cm wide leaves. Microscopic hair bulbs discovered fragment identifier cover, file vessels, glands hair, and stomata calcium oxalate crystal anisositik. The water content of 9.6%, water soluble extract content of 17.7% ethanol soluble extract content of 11.3%, ash content of 6%, acid insoluble ash content of 1%. The characterization results extract ethanol, 15% water content, water soluble extract content of 40.4% ethanol soluble extract content of 39.9%, ash content of 3.5%, acid insoluble ash content of 0.3%. While the results of the identification of classes of chemical compounds, known kerehau leaf contains flavonoids, tannins, saponins and terpenoids.
PEMANFAATAN LIMBAH TONGKOL JAGUNG (Zea mays L.) SEBAGAI ARANG AKTIF DALAM MENURUNKAN KADAR AMONIA, NITRIT DAN NITRAT PADA LIMBAH CAIR INDUSTRI TAHU MENGGUNAKAN TEKNIK CELUP Azwar Amin; Saibun Sitorus; Bohari Yusuf
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

A research about utilization of waste corncob (Zea may L.) as active charcoal in reduction ammonia, nitrite and nitrate levels on industrial tofu liquid waste using dye technique have been researched. The purpose of this research to know reduction levels of industrial tofu liquid waste from some parameter is ammonia, nitrite and nitrate by using 2 variations is contact time and pH tofu liquid waste. The percentage yield of research to show of reduction ammonia, nitrite and nitrate levels at the optimum contact time 10 minute and the optimum pH 6 that is 51,29%, 31,93% and 58,71%. And then analyzed of data by using ANOVA test to know Fcount influence of the contact time of active charcoal to reduction ammonia, nitrite and nitrate levels on industrial tofu liquid waste that is 2,4891 less than Ftable 3,00. It is stated that is no significant effet on the reduction ammonia, nitrite and nitrate levels of industrial tofu liquid waste by using variation contact time active charcoal. While Fcount influence of optimum pH industrial tofu liquid waste to reduction ammonia, nitrite and nitrate levels on industrial tofu liquid waste that is 5,7168 more than Ftable 2,07. It is stated that is a significant effet on the reduction ammonia, nitrite and nitrate levels of industrial tofu liquid waste by using variation optimum pH industrial tofu liquid waste.
ANALISIS RESIDU KLORPIRIFOS DALAM SAYUR-SAYURAN DENGAN TEKNIK HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) Aman Sentosa Panggabean
JURNAL KIMIA MULAWARMAN Vol 13 No 2 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The research about analysis of chlorpyrifos residue in vegetables by using High Performance Liquid Chromatography (HPLC) technique has been done. To obtain the optimal measurement results, the measurement performed several important parameters in the chromatographic system was composition of mobile phase, volume injection sample, flow rate and pH eluent. Optimum measurement conditions obtained was mobile phase composition (water : methanol) with 70 : 30, volume injection sample are 5 mL, flow rate are 0.5mL/menit and pH eluent are 7. The analytical performance that obtained is good showed with the reproducibility value as percentage coefficient variance (% CV) was 0.0664%, limit of detection (LOD) was 0.44 ppm, with a recovery percentage of > 95%. The results obtained showed the HPLC technique can be used for the routine analysis in the determination of chlorpyrifos for the vegetable samples.
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 %.

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