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INDONESIA
Indonesian Journal of Chemistry and Environment
Published by Universitas Negeri Yogyakarta
ISSN : -     EISSN : 25993186     DOI : 10.21831
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Materials Science & Nanotechnology
Articles are welcome that deal with theoretical analysis, meta-anaysis reviews, and result of research or empirical studies from all aspect of Chemistry and Environment. Reports on new methodologies and comprehensive assessments of existing ones, as well as applications to new types of problems are especially welcome. Experimental papers are expected to be brought into relation with theory, and theoretical papers should be connected to present or future experiments. Manuscripts that apply routine use or minor extensions or modifications of established and/or published experimental and theoretical methodologies are appropriate if they report novel results for an important problem of high interest and/or if they provide significant new insights.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 73 Documents
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Synthesis of Vanillyl Acetate Through Fischer Esterification of Acetic Acid and Vanillyl Alcohol Product of Vanillyl Reduction Chintya Ayu Triwijayanti; Cornelia Budimarwanti
Indonesian Journal of Chemistry and Environment Vol 5, No 2 (2022): DECEMBER 2022
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v5i2.54577

Abstract

The aims of this research are (1) synthesis of vanillyl alcohol compounds using sodium borohydride (NaBH4) and synthesis of vanillyl acetate compounds through Fischer esterification reaction between acetic acid and vanillyl alcohol from reduced product of vanillin, (2) characterization of vanillyl alcohol compounds and vanillyl acetate compounds using Thin Layer Chromatography (TLC), Fourier transform Infrared (FTIR) and Gas Chromatography Mass Spectroscopy (GS-MS). Vanillyl alcohol was obtained by reducing the aldehyde group of vanillin using sodium borohydride (NaBH4). Through the Fischer esterification reaction between the reduced compound of vanillin and acetic acid using H2SO4 as a catalyst, vanillyl acetate was characterized using TLC, FTIR, and GC-MS. The identification results using TLC showed the appearance of the functional group OH alcohol and CO alcohol in the area of 3442.22 cm-1 and 1153.99 cm-1 on the IR spectrum of vanillyl alcohol. Identification using GC-MS stated that vanillyl alcohol has a purity of 91.13% of 154 m/z value in the yield of 59.74%. The results of the esterification reaction form the brown solids with a yield of 63.98%. Meanwhile, the characterization results using TLC showed that the synthesis of vanillyl acetate has been formed by the appearance of the functional group C=O ester at a wave number of 1738.59 cm-1 and CO ester at 1274,2 cm-1 on the IR spectrum of vanillyl acetate.
The Effectiveness of Active Carbon Adsorbent of Cassava Peel (Manihot Esculenta Cranzts) in Reduce Level of Chromium Metal in Tannery Liquid Waste Susila Kristianingrum; S. Sulistyani; Annida Rifka Larastuti
Indonesian Journal of Chemistry and Environment Vol 5, No 2 (2022): DECEMBER 2022
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v5i2.18813

Abstract

This study aims to determine the characteristics, the effect of mass variation, the percentage of adsorption effectiveness of cassava peel activated carbon activated with 0.5 M HCl and activated with 0.5 M H2SO4 on the adsorption of Cr metal in leather tanning wastewater and its morphology. The subject of this research is the adsorbent of cassava peel before it is asctivated, activated by chloric acid 0,5 M, and activated by sulfuric acid 0,5 M. meanwhile the object of this research is the effectiviness of cassava peel adsorbeny in reduscing chromium metal content in tannery liquid waste. Cassava pell was carbonized at 500 oC for 1 hour. The cassava peel carbon was characterized according to SNI 06-3730-1995. The adsorption process is performed by batch method. Analysis was performed by Atomic Adsorption Spectrophotometer, PSA, and SEM-EDX. The result of the characterization of cassava peel carbon showed that the moisture content, ash content, adsorption capacity of I2 met SNI, meanwhile the carbon contenr and volatile matter conten did not met SNI. The adsorption efficiency of kromium metal is 95.97% for carbon before activated, 95.33% for carbon activated by chloroc acid, and 96.65% for carbon activated by sulfuric acid. The result of PSA size of cassava peel adsorbent before activated by chloric acid and sulfuric acid were 34.484 µm, 42.504 µm, and 37.059 µm respectively. Cassave peel adsorbent has a Langmuir adsorption type. The SEM-EDX result showed that the adsorbent from cassava peel had a dissimiliar pore shape
The Formulation and Evaluation of Anti-Aging Tamarind Leaf (Tamarindus Indica L.) Extract Cream Arini Miftaqul Jannah; Nurfina Aznam
Indonesian Journal of Chemistry and Environment Vol 5, No 2 (2022): DECEMBER 2022
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v5i2.58395

Abstract

This study aims to formulate and evaluate the anti-aging tamarind leaf (Tamarindus Indica L.) extract cream due to the increasing demand for the anti-aging product day by day. In this study, tamarind leaf extract was tested to find out its phytochemicals, antioxidant activity using a 1,1-diphenyl-2-picrylhydrazyl method, and anti-aging activity using a UV spectrophotometer. Anti-aging cream was formulated based on the antioxidant and anti-aging potential of tamarind leaf extract and its evaluation. The cream was formulated with tamarind leaf extract, carboxymethylcellulose, and base cream with different emulsion types (water in oil and oil in water). This study revealed that tamarind leaf extract contains alkaloid, flavonoid, saponin, phenol, and tannin. Tamarind leaf extract also has an antioxidant and an anti-aging activity. The cream evaluation showed that cream with extract concentration at 80 ppm emulsion types W/O and O/W placed in outdoor and indoors were to be stable during 4 weeks of stability studies. The creams still have antioxidant activity, do not experience a significant change in their physical appearance at organoleptic test, homogeny, pH range at 4.5-8, spreadability range at 5-7 cm in weight 0-50 gram, and are not separated during centrifugation test.
Treatment of Industrial Wastewater and Household Waste Using Electrocoagulation Method with Aluminum Electrode S. Suyanta; S. Sunarto; Susila Kristianingrum; Regina Tutik Padmaningrum; Derifasay Salsabilla; K. Karlinda
Indonesian Journal of Chemistry and Environment Vol 5, No 2 (2022): DECEMBER 2022
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v5i2.58394

Abstract

The treatment of industrial wastewater and household waste using the electrocoagulation method with aluminum electrodes aims to determine the optimal time and voltage to reduce iron content, manganese content, and TDS from industrial wastewater and household waste. The method used in this study was the electrocoagulation method with aluminum electrodes. The object of this research was the reduction of iron content, manganese content and TDS of industrial wastewater and household waste. The optimization test of electric voltage and electrocoagulation time was carried out at variations of electric voltage of 5, 10, and 15 volts and time variations of 1, 3, 6, 9, and 12 hours. Then the samples were analyzed using Atomic Absorption Spectroscopy (AAS), pH meter and TDS meter. The results showed that the optimal time and voltage to reduce iron content, manganese content, and TDS of industrial wastewater and household waste was 12 hours and 15 volts. After the electrocoagulation process, the iron content was reduced by 95.37%, the manganese content was reduced by 100%, the TDS value was reduced by 43.66%, and the pH value increased by 26.73%.
THE EFFECT OF CONCENTRATION AND TYPE OF SOAKING MEDIA (WATER, ALCOHOL, SALT, AND VINEGAR) ON DECREASING OXALATE LEVELS (WASHBILITY) IN PORANG Adhi Setyawan; Bambang Sugiarto; Octavia Nurmalitasari; Endang Sulistyowati
Indonesian Journal of Chemistry and Environment Vol 5, No 2 (2022): DECEMBER 2022
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v5i2.53239

Abstract

Porang tubers ( Amorphophallus oncophyllus ) contain very high rates of glucomannan and have many benefits in various fields of health, pharmaceutical, industrial, and food fields. Besides having great benefits, porang tubers contain calcium oxalate which causes itching if consumed directly, irritation and kidney stones. The purpose of this study was to make porang tubers free from oxalate content by using various concentrations and types of immersion media on porang. The types of immersion media are water, salt, alcohol, and vinegar. Oxalate rates were analyzed by permanganometric titration method. The results of the diced porang immersion in this study showed that water with a temperature of 70°C with an immersion time of 120 minutes, salt solution at a concentration of 14% with an immersion time of 90 minutes, alcohol with a concentration of 40% with a soaking time of 30 minutes, and vinegar with a concentration of 30% with an immersion time of 150 minutes is the optimal result. While the porang immersion with long slices obtained optimal results in water with a temperature of 50°C with an immersion time of 150 minutes, salt solution at a concentration of 14% with an immersion time of 150 minutes, alcohol with a concentration of 60% with an immersion time of 150 minutes, and vinegar acid with a concentration of 20% with an immersion time of 150 minutes. In the optimal results of the dice, the oxalate content in water immersion decreased by 2.4 %, salt solution decreased by 68.4%, alcohol decreased by 24.6%, and vinegar decreased by 11.8%. In the optimal results of the spring roll filling, the oxalate content in water immersion decreased by 2.4 %, salt solution decreased by 7.3%, alcohol decreased by 19.7%, and vinegar decreased by 11.8%.
Study on Content of Nitrogen, Phosphorus, and Potassium from Mixed Waste of Empty Fruit Bunch of Oil Palm and Banana Stem as Organic Fertilizer for Tomato Plants Akram La Kilo; Sarmini A Iladat; Hendri Iyabu
Indonesian Journal of Chemistry and Environment Vol 6, No 1 (2023): JUNE 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i1.61232

Abstract

The purpose of this research was to study the levels of nitrogen, phosphorus, and potassium (NPK) contained in organic fertilizer made from a mixture of empty fruit bunch waste from oil palm and banana stems, as well as to determine the effects on the growth and development of tomato plants when applying the organic fertilizer made from the aforementioned mixture. The research involved analyzing the total nitrogen content using the Kjeldahl method, phosphorus (P) using UV-VIS, and potassium (K) using AAS, as well as conducting tomato planting experiments using a growing medium consisting of compost made from the mixture of empty fruit bunch waste from oil palm and banana stems. Based on the research results, it was found that the NPK content of the soil and compost mixture of empty fruit bunch waste from oil palm and banana stems met the SNI 19-7030-2004 standard for nitrogen (N) and phosphorus (P). The growth and development of tomato plants without using the organic fertilizer mixture from the mixture of empty fruit bunch waste from oil palm and banana stems underwent some changes, but the changes occurred at a slower pace compared to using the organic fertilizer mixture from the aforementioned mixture.
Determination of Selenium, Lead, and Zinc Levels in Well Water Using the AAS Method Khoirul Ngibad
Indonesian Journal of Chemistry and Environment Vol 6, No 1 (2023): JUNE 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i1.59206

Abstract

Metal selenium (Se) has long been identified as a toxic element. In addition, the presence of lead metal (Pb) in waters is harmful both directly to the life of organisms and its effects indirectly on human health. Further, Zn metal can cause system dysfunction resulting in decreased growth and reproduction. This study aims to analyze Se, Pb, and Zan on well water around the Taman District, Sidoarjo Regency. The method used in this study is the AAS method at 196 nm for measuring Se levels, 283.3 nm for measuring Pb levels, and 213.9 nm for measuring Zn levels. 0.013; and 0.002mg/L (well water A) and 0.002; 0.013; and 0.002 mg/L (well water B). The Se, Pb, and Zn levels still meet the quality standards (maximum content) of chemical parameters.
Molecular Docking and Dynamics Simulation for Searching Anti-Cancer Compounds of Piperlongumine Derivatives that Have Potential as an Inhibitor Against MAO-B (Monoamine Oxidase B) Suwardi Suwardi; Agus Salim; Raden Rara Fadhila Kirana Nugrahani; Yolanda Amalia
Indonesian Journal of Chemistry and Environment Vol 6, No 1 (2023): JUNE 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i1.61429

Abstract

The docking of the piperlongumine molecule and its derivatives has been carried out to find molecules that have the potential as anti-cancer. A total of 18 ligands were docked to the 2v5z protein using the autodock4 and autodock vina programs. The binding energies of piperlongumine and piperlongumine derivatives [R1 = CH3 and R2 = H] were -8.6 kcal/mol and -9.3 kcal/mol, respectively. Based on molecular dynamics simulations, the hydrogen bond interaction fraction was dominated by GLN 206 residue in both the SAG (88%)  and piperlongumine derivatives ((R1=CH3, R2 = H)(93%) ligand, for this reason, this piperlongumine derivative molecule is predicted to have potential as MAO B inhibitor.
Synthesis of Film Cellulose-Glycerol-Cloves Oil as Chili Packaging Endang Widjajanti Laksono; Putri Nur Halimah
Indonesian Journal of Chemistry and Environment Vol 6, No 1 (2023): JUNE 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i1.61502

Abstract

The aim of this research is to know the utilization of cellulose film with the addition of glycerol and clove oil in various variations as the best chilli packer based on mechanical properties, surface photo, water resistance test, and its effectiveness to extend the life of chilli. The production of cellulose film as packaging in this research is done by using coating method. In the coating method, variations of glycerol and clove oil were added in the ratio of (3: 1), (5: 1), (7: 1), (10: 1), and (15: 1) (v / v). The synthesized cellulose film will be characterized by functional group analysis using FTIR-ATR, mechanical test using Tensile strength, surface photo using optical microscope, cellulose film resistance test to water, and effectiveness test as chili packaging. FS Gli: Ck (3: 1) is a cellulose film with variations in the addition of glycerol and the best clove oil which has a tensile strength of 12.193 MPa, elongation of 9.761%, the most homogeneous surface photo, the greatest water resistance value 42,87, and effectiveness best cellulose film as a chilli packer.
Analysis of Copper and Lead in Nata de Coco Annida Fadlila Hanan; Jahra Najdah Alfiah; Safira Rizqi Annisa; Hindun Hindun
Indonesian Journal of Chemistry and Environment Vol 6, No 1 (2023): JUNE 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i1.62814

Abstract

The content of heavy metals in nata de coco has become a polemic in Indonesia due to the use of fertilizers such as urea, NPK, and ZA as a source of nitrogen and it is feared that it will leave residues in nata de coco products. The purpose of this study was to analyze the levels of heavy metals Cu and Pb in branded and bulk nata de coco. Samples were analyzed using AAS. The results of the analysis showed that the Cu content in branded and bulk nata de coco was the same, which is 0.00096 mg/g. The Pb content in branded nata de coco was not detected, but in bulk nata de coco it was found to be 0.0409 mg/g. Pb content far exceeds the threshold of SNI 01-4317-1996.

Page 5 of 8 | Total Record : 73

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