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Jurnal Kimia (Journal of Chemistry)

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Published by Universitas Udayana

ISSN : 19079850 EISSN : 25992740 DOI : 10.24843/JCHEM

Core Subject : Science,

Chemistry

Jurnal Kimia (Journal of Chemistry) publishes papers on all aspects of fundamental and applied chemistry. The journal is naturally broad in scope, welcomes submissions from across a range of disciplines, and reports both theoretical and experimental studies.

Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)

Articles 518 Documents

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FLAVONOLS FROM THE LEAVES Lygodium microphyllum (Lygodiaceae) Hadi Kuncoro; Kindi Farabi; Euis Julaeha; Laode Rijai; Yoshihito Shiono; Unang Supratman
Jurnal Kimia (Journal of Chemistry) Vol. 11. No. 1 Januari 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Flavonol compounds, quercetin (1) and quercetin-3-O-?-D-glucopyranoside (2) have been isolated from the ethyl acetate extract of Lygodium microphyllum leaves. The chemical structures of flavonol compounds were identified based on spectroscopic data and by comparison of spectral data obtained previously. The discovery of flavonol compounds in Lygodium microphyllum was shown in this study for the first time.

SPESIASI DAN BIOAVAILABILITAS LOGAM BERAT Cu DAN Zn DALAM TANAH PERTANIAN ORGANIK DAN ANORGANIK N. W. B. S. Devi; I M. Siaka; K. G. D. Putra
Jurnal Kimia (Journal of Chemistry) Vol.13 No.2 Juli 2019
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Agriculture in Indonesia generaly applies agrochemical to improve the quality and quantity of the products, but the impact is, both lands and their products could be contaminated by pollutans especially heavy metals. This study aimed to determine the total metals, speciation, and bioavailability of Cu and Zn in organic and inorganic agricultural soils in Blahbatuh District, Gianyar Regency. The sequential extraction method was performed to release the bonds of heavy metals in each soil component and the determination of the metal concentration was carried out using AAS. The total metals of Cu and Zn in both organic and inorganic soils indicated that both type of soils were still classified as uncontaminated soils because the metal contents were below the maximum limit allowed. The total contents of Cu and Zn in the organic soil were of 45.3922 mg/kg and 47.7645 mg/kg, respectively, while Cu and Zn in the inorganic soil were 48.9121 mg/kg ??and 49.9474 mg/kg, respectively. Fractination in the organic and inorganic soil EFLE (easly, freely,leachable, and exchangeable), reducible, oxidisable, dan resistant including F4> F3> F2> F1 for Cu and F4> F3> F1> F2 for Zn. The bioavailability of Cu and Zn in the organic soils were 10.52-23.79% and 3.79-7.21% bioavailable, 10.03-25.50% and 14.99-32.68% potentially bioavailable, 38.64-63.19% and 41.20- 60.28% non bioavailable, while in the inorganic soil and were 18.31-32.63% and 4.54-7.85% bioavailable, 9.86-13.85% and 15.26-32.55% potentially bioavailable, and 40.20-59.14% and 42.84-58.26% non bioavailable. Consuquenthy, both types of the agricultural soils would be safe for planting various types of rice. Keywords: bioavailability, Cu and Zn, speciation, agricultural soil

EFEKTIVITAS SISTEM PENGOLAHAN INSTALASI PENGOLAHAN AIR LIMBAH SUWUNG DENPASAR TERHADAP KADAR BOD, COD, DAN AMONIA Wahyu Dwijani Sulihingtyas; I W. Budiarsa Suyasa; Ni M. Indra Wahyuni
Jurnal Kimia (Journal of Chemistry) Vol. 4, No. 2 Juli 2010
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (100.163 KB)

The effectivity of waste water treatment systems in Suwung Waste Water Treatmant Installation Denpasar,was investigated, by analyzing its effluent Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD)and ammonia contents. The aims of the research are to determine the effectivity of each stage of waste watertreatment and the optimum detention time of waste water in aerated lagoon and sedimentation pond, in order toreduce the BOD, COD and ammonia concentration.The results showed that the effectivity of treatment systems of waste water in Suwung Denpasar was low.The percentages of the reduction of BOD5, COD and ammonia in content stage I were 14.29, 15.66, and 33.74%respectively. More over, the reduction percentages in stage II were 20.83, 14.43, and 17.39% respectively. On theother hand, the reduction percentages from the initial to final stages were 32.14% for BOD5, 27.83% for COD and45.26% for ammonia. The optimum detention time of waste water in aerated lagoon and sedimentation pond forreducing parameters was 5 day and 40 hour respectivel

STUDI INTERAKSI ION LOGAM Mn2+ DENGAN SELULOSA DARI SERBUK KAYU Risfidian Mohadi; Adi Saputra; Nurlisa Hidayati; Aldes Lesbani
Jurnal Kimia (Journal of Chemistry) Vol. 8, No. 1 Januari 2014
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Separation of cellulose from sawdust using methanol and hydrocloric acid in various acid concentrations has been carried out. Cellulose from sawdust was characterized using FT-IR Spectroscopy and XRD difractometer. The cellulose was used as adsorbent for Mn2+ and Co2+ metal ions in aqueous medium. Adsorptions process was studied through variation of time interaction, concentration and separation desorption. FT-IR Spectrum shows that cellulose with 5% acid concentration has similarity with FT-IR cellulose standard. The XRD difractometer pattern of cellulose shows that cellulose has amorf structure. The adsorption rate constant of Mn2+ on cellulose from sawdust shows adsorption rate constant in cellulose is higher than in sawdust. Adsorption energy of Mn2+ metal ion in cellulose from sawdust was about 26.21 kJ/mol. The adsorption capacity of Mn2+ in cellulose is higher than in sawdust. The desorption of Mn2+ metal ion using H2O, Na-EDTA, Amonium acetic, and HCl shows that the adsorption mechanism of Mn2+ on cellulose and sawdust is dominated by chemical interaction.

UJI PENDAHULUAN NILAI KELEMBABAN KULIT MANUSIA PADA PEMAKAIAN SEDIAAN MASKER GEL PEEL OFF KULIT BUAH MANGGIS K. Widnyani Astuti; N. P. A. D. Wijayanti; A. A. D. Lestari; I G. A. P. Y. Artha; I A. G. Pradnyani; I G. A. D. Ratnayanti
Jurnal Kimia (Journal of Chemistry) Vol. 12 No.1 Januari 2018
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Kulit yang mengalami penuaan dini menyebabkan nilai kelembaban kulit menjadi berkurang sehingga kulit menjadi kering. Berkurangnya nilai kelembaban kulit dapat diatasi dengan memberikan perawatan terhadap kulit. Perawatan dapat dilakukan dengan sediaan topikal yang mengandung antioksidan salah satunya yaitu masker gel peel off ekstrak kulit buah manggis (Garcinia mangostana L.). Penelitian pendahuluan ini bertujuan untuk melihat nilai kelembaban kulit manusia pada pemakaian masker gel peel off ekstrak kulit buah manggis. Pengujian dilakukan dengan menggunakan 5 subjek uji masing masing dioleskan plasebo pada tangan kanan dan dioleskan masker gel peel off ekstrak kulit manggis pada tangan kiri selama 14 hari. Metode perlakuan subjek uji dilakukan secara randomized, double blind, plasebo control group design. Data yang diperoleh diuji normalitas dan homogenitasnya. Data nilai kelembaban terhadap nilai sebelum dan sesudah penelitian dibandingkan dengan uji T Berpasangan. Hasil penelitian menunjukkan bahwa pada kelompok kontrol dan perlakuan menghasilkan nilai p<0,05 yang bermakna yang menunjukkan bahwa terdapat perbedaan yang bermakna sebelum dan sesudah dioleskan basis masker maupun masker yang mengandung kulit manggis. Kedua kelompok menunjukkan adanya perubahan, namun rentang peningkatan pada kelompok perlakuan lebih besar dibandingkan dengan kelompok kontrol. Dengan demikian, diketahui masker gel peel off Garcinia mangostana L. mampu meningkatkan nilai kelembaban kulit manusia lebih besar dibandingkan kelompok kontrol.

AMPLIFIKASI FRAGMEN 0,4 KB DAERAH D-LOOP DNA MITOKONDRIA LIMA INDIVIDU SUKU BALI TANPA HUBUNGAN KEKERABATAN DENGAN METODE POLYMERASE CHAIN REACTION (PCR) K. Ratnayani; Sagun Chandra Yowani; Liangky Syane S
Jurnal Kimia (Journal of Chemistry) Vol. 3, No. 1 Januari 2009
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.225 KB)

The human mitochondrial DNA (mtDNA) has higher polimorfism level than nucleous genom, and it ismaternally transmitted. D-Loop is a non-sense region in human mtDNA that has the highest polimorfism. Generally,the aim of this research is to find out the variation in D-Loop region of mtDNA in some Balinese without familycorrelation. For that reason, this research was brought out to determine the sequences of nucleotide of D-Loop regionin five normal Balinese from different families without correlation. The specific aim of this research is to amplify the0,4 kb fragment of mtDNA D-Loop region in five Balinese above, using the PCR methode. In conducting the PCR,the temperature of annealing of primer and the weight of template of mtDNA were optimized. Several phases thathave been conducted : 1). Lisis of the cavum oris epithelium; 2). Quantation of DNA; 3). Reaction PCR; 4). Result ofPCR detection with agarosa gel electroforesisThe result of this research is the amplification of 0,4 kb fragment of D-Loop region in mtDNA by PCR.This research also found the optimum temperature annealing, which was 55 0C, and the optimum weight of templateof DNA which was ± 0,688 ?g.

SKRINING ANTIKANKER MELALUI PENDEKATAN UJI TOKSISITAS TERHADAP LARVA UDANG (Artemia salina Leach) SERTA IDENTIFIKASI GOLONGAN SENYAWA AKTIF PADA BUAH PLUM (Prunus domestica L.) Ni Made Susita Pratiwi; I Made Dira Swantara; Ni Luh Rustini
Jurnal Kimia (Journal of Chemistry) Vol. 9, no. 1 Januari 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Isolation and identification of toxic compounds from ethanol extract of Prunus domestica L. have been conducted. Extraction of 1000 gr of plum fruit produced 128,75 g concentrated ethanol extract. The results of toxitcity tests of the extract using Artemia salina L. larvae showed the LC50 value of 100 ppm. Partition of ethanol extract yielded chloroform (10,52 g), n-hexane (26,58 g), and water (52,57 g) extracts. The toxicity test showed the chloroform extract to be the most toxic with LC50 of 31,97 ppm. Chloroform extract was separated by column chromatography using silica gel as stationary phase and chloroform : ethanol : water (5:4:1) as mobile phase giving three fractions. The toxicity test showed that fraction II was the most toxic with LC50 of 364,74 ppm. The phytochemical test result showed that fraction II (the active isolate) belonged to terpene groups. Analysis using UV-Vis spectrophotometer showed three peaks at 241, 409, and 668 nm, showing the possibility of the presence of funtional groups of C-H aliphatic, C-O alkoholic and C=O, respectively

KADAR TOTAL SENYAWA FENOLAT PADA MADU RANDU DAN MADU KELENGKENG SERTA UJI AKTIVITAS ANTIRADIKAL BEBAS DENGAN METODE DPPH (Difenilpikril Hidrazil) Ketut Ratnayani; A. A. I. A Mayun Laksmiwati; Ni P. Indah Septian P.
Jurnal Kimia (Journal of Chemistry) Vol. 6, No. 2 Juli 2012
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.645 KB)

Honey contains a variety of compounds which function as antioxidants one of which is a phenolic compound. Monoflora honey used in this study were randu and kelengkeng honey from certain brand distributed on the market. Qualitative test with 5% FeCl3 result showed that both types of honey contain phenolic compounds. The total phenolic compounds was determined by spectrophotometry using the Folin-Ciocalteu method and gallic acid as standards, while the free radical activity was tested using the method of DPPH (Difenilpikril hidrazil). The result of research showed that the total content of phenolic compound in randu was 1375,89 ± 134,10 mg GAE/kg, while kelengkeng honey was 1136,49 ± 39,62 mg GAE/kg. The % reduction of free radical in randu honey at the 5th minute was 62,55 ± 4,4407 % and at the 60th minute was 95,39 ± 8,5507 %. The % reduction of free radical for kelengkeng honey at the 5th minute was 44,12 ± 1,3433 %, 60th minute was 62,00 ± 0,8612 %, and for the standard of gallic acid the % reduction of free radical at the 5th minute was 41,03% and the 60th minute was 92,00%. Therefore, there was a linear correlation between the total phenolic compound of randu honey and kelengkeng honey with % reduction of its free radical.

EFEK PENAMBAHAN ANTIOKSIDAN EKSTRAK METANOL KULIT BUAH MANGGIS (Garcinia mangostana L.) TERHADAP PERUBAHAN KADAR FFA, BILANGAN ASAM, DAN BILANGAN PEROKSIDA BIODIESEL Ni Made Suaniti; Manuntun - Manurung; Ni Made Meryana Utari
Jurnal Kimia (Journal of Chemistry) Vol. 11. No. 1 Januari 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Biodiesel merupakan salah satu bahan bakar alternatif yang beredar di pasaran. Agar stabil lebih lama maka kedalamnya ditambahkan antioksidan. Penambahan ekstrak metanol kulit buah (EMKB) manggis (Garcinia mangostana L.) sebagai antioksidan alami, diharapkan menjadi suatu pilihan. Penelitian ini bertujuan untuk mengetahui perubahan %FFA, BA, BP dari biodiesel akibat penambahan ekstrak metanol kulit buah manggis ke dalam biodiesel. Untuk maksud tersebut, biodiesel ditambahkan ekstrak metanol kulit buah manggis dengan variasi konsentrasi sebesar 0,01; 0,02; dan 0,03% b/v masing-masing sebagai A1; A2; dan A3. Biodiesel tersebut diuji nilai kadar FFA, bilangan asam, dan bilangan peroksida setiap minggu selama 6 minggu. Dari berbagai konsentrasi tersebut, biodiesel A1 merupakan konsentrasi terbaik dalam menghambat reaksi oksidasi biodiesel, dengan nilai kadar FFA, bilangan asam, dan bilangan peroksida paling rendah berturut-turut sebesar (0,24±0)%; (0,5252±0) mg KOH/g; dan (34,7511±0) meq peroksida/1000 g. Nilai bilangan asam tersebut telah sesuai dengan SNI 7182:2012.

POTENSI EKSTRAK DAUN CENDANA (Santalum album L.) SEBAGAI SENYAWA PENGHAMBAT JAMUR Candida albicans K. Swandiyasa; N. M. Puspawati; I. A. R. A. Asih
Jurnal Kimia (Journal of Chemistry) Vol.13 No.2 Juli 2019
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Diseases caused by C. albicans (C. albicans) such as mouth, skin and nail diseases are still commonly found in Indonesia. This study aimed to examine antifungal activity of n-hexane, chloroform, and n-butanol extracts of Santalum album (S.album) leaves in inhibiting the growth of C. albicans and to determine the minimum inhibitory concentration of the most active extract as well as to identify their active compounds. Antifungal activity testing was carried out using disc diffusion method and identification of active compound was performed using LC-MS /MS. Extraction of 1 kg sandalwood leaf powder with methanol yielded 86.80 gram of crude methanol extract. Partiiton 40 gram of the crude methanol extract with n-hexane, chloroform, and n-buthanol gave 12.60, 6.20 and 1.20 g of extracts respectively. The antifungal activity test results revealed that n-hexane extract was the most active in inhibiting the growth of C.albicans with inhibitory diameter of 13 mm as compared to chloroform 9 mm and n-buthanol 8 mm. The active n-hexane extract which is active as an antifungal is then made various variations to obtain a minimum inhibitory. The n-hexane extract, at concentrations of 95, 90 and 85% inhibited the growth of C.albican with inhibitory diameter of 12.04, 15.8, and 13 mm respectively. While at the concentarion of 80 % showed minimum inhibitory diameter of 9.32 mm. Based on analysis mass spectra of two peaks of LC-MS / MS chromatogram with MassLynx V4.1 programe and Chemspider web database suggested the presence of benzofurazan and picolylamine compounds which may contribute to the antifungal activityof n-hexane extract of S.album. Keywords: Sandalwood (Santalum album L.), antifungal, C. albicans, n-Hexane, LC-MS/MS

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Ni Putu Diantariani

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Program Studi Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Udayana Kampus Bukit Jimbaran, Jimbaran, Bali, Indonesia

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Home Page

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Contact Name Ni Putu Diantariani

Contact Email jurnalkimia@unud.ac.id

Phone +628123640424

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Editorial Address Program Studi Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Udayana Kampus Bukit Jimbaran, Jimbaran, Bali, Indonesia

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Contact Name
Ni Putu Diantariani

Contact Email
jurnalkimia@unud.ac.id

Phone
+628123640424

Journal Mail Official
jurnalkimia@unud.ac.id

Editorial Address
Program Studi Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Udayana Kampus Bukit Jimbaran, Jimbaran, Bali, Indonesia

Location
Kota denpasar,

Bali

INDONESIA