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Made Gautama Jayadiningrat
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appliedchemistryresearch@gmail.com
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+6287762961886
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appliedchemistryresearch@gmail.com
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Jl. Udayana Kampus Tengah Singaraja, Bali, Indonesia 81116
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Kota denpasar,
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INDONESIA
INTERNATIONAL JOURNAL OF APPLIED CHEMISTRY RESEARCH
Published by Universitas Pendidikan Ganesha
ISSN : -     EISSN : 25493671     DOI : http://dx.doi.org/10.23887/ijacr.v1i1
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
International Journal of Applied Chemistry Research is a peer-reviewed, Open Access journal that publishes original research articles related to all aspects of applied chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 60 Documents
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Efek Fotodegradasi terhadap Chromophoric Dissolved Organic Matter (CDOM) dan Nutrien pada Air Danau I Gusti Ngurah Agung Suryaputra
International Journal of Applied Chemistry Research Vol. 3 No. 2 (2021)
Publisher : Universitas Pendidikan Ganesha

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Abstract

This study's objective was to determine the effect of photodegradation on CDOM and nutrients in Lake Beratan, specifically in a tourism-dominated area. Subjects in this study are the water of Lake Beratan, while the object of this study is the absorbance CDOM, nutrient concentration, DO, pH, and temperature. We measured absorbance and nutrient concentrations using a Shimadzu UV-1800 UV-Vis Spectrophotometer. The spectral slope (S) and E2:E3 ratio were calculated from its absorbance. The result shows the possibility of misinterpretation due to the use of S or E2:E3 alone to express photodegradation. Either one demonstrates that photodegradation seems to decompose CDOM less than biodegradation. However, if we notice its absorbance value, it is clear that the opposite phenomenon, which is reasonable, takes place. We, therefore, conclude that CDOM photodegradation cannot be concluded from S and E2:E3 alone, but its absorbance is also necessary to lead to the right interpretation. Besides CDOM absorbance, photodegradation also affects nutrients in the water. Photodegradation decomposes organic materials into inorganics, whereas organic nitrogen is turned into ammonia and is then oxidised into nitrite and nitrate via nitrification. Overall, photodegradation decreases the concentration of nutrients dissolved in water.
Identifikasi Kandungan Metampiron dalam Obat Tradisional Sediaan Jamu Pegal Linu di Wilayah Kecamatan Buleleng, Kabupaten Buleleng I Made Wisnu Brama Wardana
International Journal of Applied Chemistry Research Vol. 3 No. 2 (2021)
Publisher : Universitas Pendidikan Ganesha

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Abstract

This research is a descriptive study that aims to determine the presence of methampyrone in traditional herbal medicine for stiff rheumatic preparations in the Buleleng District, Buleleng Regency. The subject of this study was herbal medicine in solid dosage form in powder form, which was suspected to contain methampyrone, and the object of this study was methampyrone, which was suspected to be present in the herbal medicine. The identification of methampyrone was carried out by the method of changing color and the presence of sulfur dioxide gas. The results showed that out of ten samples of aching rheumatic herbal medicine, one sample was positive for methampyrone, as evidenced by a change in color and the presence of sulfur dioxide gas in the herbal sample.
Analisis Kadar Eritrosit dan Hematokrit (HCT) pada Ibu Hamil untuk Membantu Diagnosis Anemia Ni Luh Putu Yeyen Septiani
International Journal of Applied Chemistry Research Vol. 3 No. 2 (2021)
Publisher : Universitas Pendidikan Ganesha

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Abstract

This research is classified as descriptive research and aims to: (1) determine the levels of erythrocytes and hematocrit in pregnant women; and (2) determine the percentage of pregnant women who experience anemia from April 1 to May 31, 2008. The subjects of this study were the blood of pregnant women who checked themselves at the General Hospital Board (BRSU) Tabanan from April 1 to May 31, 2008. While the object of this study was the levels of erythrocytes and hematocrit in the blood of the pregnant women, Erythrocyte and hematocrit levels were determined using the hematology analyzer method. The results of this study indicated that (1) the levels of erythrocytes and hematocrit of pregnant women ranged from 2.0 to 4.56 million/L and 18 to 41.3%, and (2) the percentage who experienced anemia was 43.33%.
Uji Mikrobiologi Air Perpipaan di Dusun Mundukkunci Desa Tegallinggah Yuliasni Mardiyati
International Journal of Applied Chemistry Research Vol. 3 No. 2 (2021)
Publisher : Universitas Pendidikan Ganesha

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Abstract

This research is a descriptive study that aims to (1) determine the presence or absence of total coliform bacteria and fecal coliform in piped water in Dusun Mundukkunci, Tegallinggah Village, and (2) determine the quality of the piped water in terms of MPN values for total coliform and fecal coliform. The subject of this research is piped water in Dusun Mundukkunci, Tegallinggah Village, Sukasada District, and Buleleng Regency. The objective is to determine the microbiological quality of the piped water in terms of the total coliform MPN and fecal coliform values. The determination of the sample is done by random sampling an area based on consideration of the distance of the spring from the distribution channel in people's homes. The presence of total coliform bacteria and fecal coliform in piped water samples was tested using the double tube method. The results showed that (1) the piped water in Dusun Mundukkunci, Tegallinggah Village, contains total coliform bacteria and fecal coliform, and (2) the microbiological quality of the piped water is suitable for use as a source of clean water, but it is not suitable for direct drinking water because of its The MPN for springs and storage tanks exceeds the standards set by the government. In its utilization, the water needs to be treated first, for example by adding a disinfectant to the holding tank or by boiling it to kill the bacteria in the water.
Identifikasi Kandungan Fenfluramin Hidroklorida dalam Obat Tradisional Jamu Pelangsing Sediaan Padat Bentuk Serbuk yang Beredar di Wilayah Kota Singaraja Putu Dewi Wirayani Giri
International Journal of Applied Chemistry Research Vol. 3 No. 2 (2021)
Publisher : Universitas Pendidikan Ganesha

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Abstract

Currently, many herbs contain medicinal chemicals (BKO). For slimming herbs, the indications included reducing hunger, and they were suspected of containing BKO in the form of fenfluramin hydrochloride. Fenfluramine hydrochloride has indications as an anorexia or anti-obesity drug. This drug works by suppressing or inhibiting the stimuli sent by certain receptors in the stomach and intestines to the satiety center in the brain. This research is a descriptive study that aims to determine the presence of fenfluramin hydrochloride in traditional medicine for slimming herbal medicine in solid powder form circulating in Singaraja City. The subject of this research was slimming herbal medicine in solid dosage form or powder form suspected of containing fenfluramine hydrochloride circulating in the Singaraja City area. The object of this research is to determine the content of fenfluramin hydrochloride, which is suspected to be present in the herbal slimming solid dosage form of the powder. The identification of fenfluramine hydrochloride was carried out by the Thin Layer Chromatography (TLC) method. The results showed that there were two samples of herbal medicine containing fenfluramin hydrochloride among five samples of herbal slimming solid preparations in powder form circulating in the Singaraja area.
Fotodegradasi dan Biodegradasi Chromophoric Dissolved Organic Matter (CDOM) di Pantai Lovina I Gusti Ngurah Agung Suryaputra
International Journal of Applied Chemistry Research Vol. 4 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

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Abstract

This study aimed at determining the effect of photodegradation on CDOM and nutrient alteration on Lovina Beach, especially in a tourism-dominated area. The subject of this study was seawater collected from Lovina Beach and filtered using GF/F 0.7 m with the help of a vacuum pump. The objects of this study were CDOM absorbance and nutrient concentration. Filtered seawater was placed into two containers: one was under sunlight for photodegradation, and the other was kept away from light for biodegradation. A water sample was collected every 2 hours for a total of 12 hours from both containers. Absorbance and nutrient concentration were measured using a UV-1800 Shimadzu UV-Vis Spectrophotometer. The absorbance spectral slope (S) and E2:E3 ratio were calculated from the absorbance. The result shows the possibility of misinterpretation due to the use of S or E2:E3 alone to express photodegradation. Either one demonstrates that photodegradation seems to decompose CDOM less than biodegradation. However, if we notice its absorbance value, it is clear that the opposite phenomenon, which is reasonable, takes place. We, therefore, conclude that CDOM photodegradation cannot be concluded from S and E2:E3 alone, but its absorbance is also necessary to lead to the right interpretation. Beside CDOM absorbance, photodegradation also affects nutrients in the water. Photodegradation decomposes organic materials into inorganics, whereas organic nitrogen is turned into ammonia and is then oxidized into nitrite and nitrate via nitrification. Overall, photodegradation decreases the concentration of nutrients dissolved in water.
Analisis Kadar Nitrit Pada Sosis Sapi Made Sri Wardani
International Journal of Applied Chemistry Research Vol. 4 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

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Abstract

Penelitian ini dilaksanakan dengan tujuan untuk menentukan kadar nitrit pada sosis sapi yang diambil dari daerah Denpasar Selatan oleh Bagian Pemeriksaan dan penyelidikan (Pemdik) Balai Besar Pengawas Obat dan Makanan (BBPOM) Denpasar. Penelitian ini dilaksanakan pada tanggal 17 April 2008. Subjek dari penelitian ini adalah sosis sapi dan objek penelitian ini adalah kadar nitrit pada sosis sapi yang diukur dengan instrumen Spektrofotometer UV-Vis pada panjang gelombang 526 nm. Hasil penelitian ini menunjukkan, bahwa kadar nitrit pada tiga sampel sosis sapi yang diuji adalah 9,8129 ppm; 8,3554 ppm; dan 5,3797 ppm. Berdasarkan Permenkes No.722/MENKES/Per/IX/1988, jumlah tersebut masih berada dalam batas toleransi. Batas maksimum penggunaan nitrit yang diperbolehkan dalam Permenkes untuk produk pangan daging olahan adalah 125 ppm.
Identifikasi Kandungan Fenilbutason dalam Obat Tradisional Sediaan Jamu Pegal Linu di Wilayah Kota Singaraja I Kadek Aditya Gunawan
International Journal of Applied Chemistry Research Vol. 4 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

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Abstract

Penelitian ini merupakan penelitian deskriptif yang bertujuan mengetahui keberadaan fenilbutason dalam obat tradisional jamu sediaan pegal linu di wilayah Kota Singaraja. Subjek penelitian ini adalah jamu pegal linu yang diduga mengandung fenilbutason dan objek penelitian ini adalah fenilbutason yang diduga terdapat dalam jamu tersebut. Identifikasi fenilbutason dilakukan dengan metode visual dengan ditandai dengan adanya perubahan warna, dan metode gravimetri yang ditandai dengan adanya endapan. Hasil penelitian menunjukkan bahwa dari sepuluh sampel jamu pegal linu, satu sampel positif mengandung fenilbutason yang dibuktikan dengan adanya perubahan warna dan adanya endapan pada sampel jamu tersebut.
Korelasi antara Kadar HbA1c dengan Kadar Glukosa Darah pada Serum Darah Pasien Penderita Diabetes Mellitus Ni Made Dewi Septendiasih
International Journal of Applied Chemistry Research Vol. 4 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

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Abstract

Penelitian ini adalah penelitian deskriptif yang bertujuan untuk (1) mengetahui bagaimana korelasi antara kadar HbA1c dengan kadar glukosa darah penderita diabetes mellitus, (2) mengetahui persentase pasien penderita diabetes mellitus yang sudah memeriksakan HbA1c di Rumah Sakit Sanglah Denpasar. Subjek penelitian ini adalah serum darah pasien penderita diabetes mellitus di Laboratorium Patologi Klinik Rumah Sakit Sanglah Denpasar, sedangkan objek penelitian ini adalah (1) kadar HbA1c dan kadar glukosa darah puasa penderita diabetes mellitus, (2) pasien penderita diabetes mellitus yang sudah memeriksakan HbA1c di Laboratorium Patologi Klinik Rumah Sakit Sanglah Denpasar. Penelitian dilakukan di Laboratorium Patologi Klinik Rumah Sakit Sanglah Denpasar, yang dilaksanakan dari tanggal 1 April sampai 31 Mei 2009. Kadar HbA1c dan kadar glukosa darah ditentukan dengan alat Cobas Integra 400 Plus. Data yang diperoleh dianalisis dengan analisis korelasi Product Moment dan analisis deskriptif. Hasil penelitian menunjukkan bahwa (1) terdapat korelasi rendah antara kadar HbA1c dengan kadar glukosa darah pada penderita diabetes dengan nilai koefisien korelasi (r) sebesar 0,3 dan (2) persentase pasien penderita diabetes mellitus yang memeriksakan kadar HbA1c-nya di Rumah Sakit Sanglah Denpasar dari 1 April sampai 31 Mei 2009 adalah 100 %.
Analisis Kadar Vitamin C yang Disimpan dalam Botol dengan Warna Berbeda Made Kusmawati
International Journal of Applied Chemistry Research Vol. 4 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

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Abstract

Penelitian ini tergolong penelitian eksperimen yang bertujuan untuk (1) mengetahui pengaruh warna botol penyimpanan terhadap kadar vitamin C,(2) mengetahui warna botol yang paling baik mempertahankan kadar vitamin C. Subjek penelitian ini adalah larutan vitamin C yang disimpan dengan warna botol berbeda dan objek penelitian ini adalah kadar vitamin C yang disimpan dengan warna botol berbeda. Jumlah sampel yang digunakan dalam penelitian ini adalah 9 buah dan volume larutan vitamin C untuk masing- masing sampel adalah 25 mL. Tiga buah sampel masing-masing disimpan dalam botol bening, hijau tua dan cokelat tua. Kesembilan buah sampel disimpan pada suhu kamar dan diletakkan pada tempat yang sama selama tujuh hari. Kadar vitamin C ditentukan dengan metode Jacobs. Hasil penelitian menunjukkan warna botol penyimpan larutan vitamin C memberikan pengaruh yang berbeda secara signifikan terhadap kadar vitamin C. Dalam hal ini, botol cokelat tua mempertahankan persentase kadar vitamin C tertinggi dibandingkan dengan botol hijau tua dan botol bening.

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