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Muhammad Fathurrahman
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Helium: Journal of Science and Applied Chemistry
Published by Universitas Pakuan
ISSN : 27761711     EISSN : 27764508     DOI : http://dx.doi.org/10.33751/helium.v2i1.5407
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
Welcome to Helium: Journal of Science and Applied Chemistry. Helium: Journal of Science and Applied Chemistry is a journal that publishes scientific papers in the field of chemistry. This Journal, run by Chemistry Study Program, Universitas Pakuan, Bogor. The Journal provides opportunities for scholars to submit papers in chemistry, and also management policies related to all aspects of chemistry and its sub-disciplines. The manuscript will not only be concerned with physical, organic, inorganic, analytical, and biochemistry but also in general science, and its applications are welcome, and fields that will be published online. The internet connection will add to the richness of information and scientific knowledge derived mainly from research. This journal is published two times a year, well documented in the form of books, which include a variety of chemistry papers by writers of various backgrounds. In addition, we also have partners from local editors who graduated as professor from some universities who will review each article before publication. Each article or paper published in this Journal will definitely be useful to all visitors and readers. Articles submitted to this journal will be reviewed by reviewers before publication by blind review.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 52 Documents
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Comparison of Analysis Results pf pH, TSS, COD and Ammonia in Industry Wastewater with Sparing and SNI Methods Dessy Nur Indryastuti; Ani Iryani; Muhammad Fathurrahman
Helium: Journal of Science and Applied Chemistry Vol 2, No 2 (2022): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v2i2.6342

Abstract

Sparing is a development of sensor technology to monitoring wastewater quality continuously and online, so it can be done in real time. Wastewater quality monitoring carried out in the laboratory using the SNI method still has several drawbacks, including large analysis costs, long analysis time and the use of chemicals that are not environmentally friendly. This study aims to determine the differences in the results of the analysis of the Sparing method with SNI on the parameters of pH, TSS, COD, and ammonia in the EWTP wastewater of PT "X" using statistical processing through the F-test and T-test. The research stages include sampling, sample storage and analysis in the laboratory. Based on the results of the study, it can be concluded that the differences in the method of Sparing analysis and SNI are not significantly different to the pH parameters in the measurement range 6.77 - 6.88; TSS in the measurement range 9.486 - 12.343 mg/L; COD in the measurement range of 55.402 - 59.274 mg/L and ammonia in the measurement range of 0.368 - 0.405 mg/L. This proves that the Sparing method can replace the SNI method for routinely monitoring the quality of EWTP wastewater of PT "X".
The Effect of Fortification of Brands and Chitosan on Tempeh on Fiber Levels and Probiotic Bacteria Growth Nunung Kurniasih; Farah Dinna; Vina Amalia; Diana Widiastuti
Helium: Journal of Science and Applied Chemistry Vol 1, No 2 (2021): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v1i2.4511

Abstract

Tempeh is a food made from soybean seeds processed through fermentation using Rhizopus sp. This processed food in the form of tempeh contains various nutrients that the body needs such as protein, fat, carbohydrates, and minerals but does not contain enough fiber. Therefore, fortification of rice bran and chitosan was carried out on tempeh. Rice bran is a by-product of rice milling which has a high fiber content. While chitosan is chitin that has removed the acetyl group. Chito-oligosaccharides (COS) contained in chitosan can act as natural prebiotics, preservatives, antimicrobials, lower cholesterol levels and are immunostimulants. The purpose of this study was to determine the fiber content and growth of the probiotic bacteria Lactobacillus acidophilus in soybean tempeh (A), rice bran (B), chitosan (C), the ratio of soybean tempeh: rice bran (6: 3) + 2% chitosan (D) and the ratio of soybean tempeh: bran (6: 2) + 2% chitosan (E). The method used for the analysis of fiber content was gravimetric, while the growth of probiotic bacteria Lactobacillus acidophilus was used to determine the potential of prebiotics contained in samples A, B, C, D, and E. The results obtained in this study were fortification of rice bran and chitosan in tempeh had high levels of fiber and the number of probiotic bacteria cells was higher than soybean tempeh. The higher the bran added, the higher the fiber content and the number of probiotic bacterial cells. while the growth of probiotic bacteria Lactobacillus acidophilus was used to determine the potential of prebiotics contained in samples A, B, C, D, and E. The results obtained in this study were bran and chitosan fortifications in tempeh had higher fiber content and cell counts of probiotic bacteria than soybean tempeh. The higher the bran added, the higher the fiber content and the number of probiotic bacterial cells. while the growth of probiotic bacteria Lactobacillus acidophilus was used to determine the potential of prebiotics contained in samples A, B, C, D, and E. The results obtained in this study were bran and chitosan fortifications in tempeh had higher fiber content and cell counts of probiotic bacteria than soybean tempeh. The higher the bran added, the higher the fiber content and the number of probiotic bacterial cells.
Determination of Anti-Browning Agents in The Manufacture of Flour from Kepok Banana Skin Waste Nuraeni, Farida; Widiastuti, Diana; Herlina, Eka; Benedicta, Glisten Madeleine
Helium: Journal of Science and Applied Chemistry Vol 4, No 1 (2024): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v4i1.10350

Abstract

Kepok banana is one of the bananas which is a horticultural commodity, easy to cultivate and has high production value in Indonesia. The high production of bananas cannot be separated from the banana peel waste produced. The effort made is to process Kepok banana peels into flour. One of the problems that occurs is that bananas experience a browning reaction. This research aims to reduce the effects of browning reactions by determining anti-browning substances and optimum concentrations in the process of making kepok banana peel flour, so that it can be used as a food ingredient. Making kepok banana peel flour begins with preparing a sample of kepok banana peel and an anti-browning solution. The samples were immersed in each solution, namely Na2S2O5, C₆H₈O₆, and C₆H₈O₇ with a concentration of 0.1 – 0.2%. Control samples were prepared without soaking. Then it is dried, mashed and sifted until it becomes flour. Organoleptic tests and white degree tests were carried out on 6 samples and 1 control. Selected samples are then subjected to chemical tests in the form of proximate and minerals. The results of the organoleptic test and white degree test showed that sample T4, namely soaking using 0.2% Ascorbic Acid anti-browning solution, was the sample selected by the panelists and had the highest white degree, namely 53,26. The results of the proximate and mineral tests for T4 flour samples compared to T1 flour (control) showed that the T4 flour samples had proximate and mineral content values that largely met the standards for wheat flour according to SNI 3751:2009. Only the ash content exceeds the SNI standard, this can be caused by the high iron mineral content.
Literature Study of Tempe Bioactive Compounds as Functional Foods in Indonesia Sinaga, Siska Elisahbet; Tumewu, Zefanya
Helium: Journal of Science and Applied Chemistry Vol 3, No 2 (2023): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v3i2.8628

Abstract

Tempe is a locally originated food from Indonesia, enriched with numerous bioactive compounds that confer significant health benefits. This review article aims to comprehensively describe the various types of bioactive compounds present in Tempe, elaborate on their functional food roles, and elucidate the ways these compounds contribute to improved health. The methodology employed for this study involved a thorough literature review spanning the years 2013 to 2023. The findings revealed that Tempe contains essential bioactive compounds such as isoflavones, saponins, and amino acids, all of which exhibit potent antioxidant, antihypertensive, and antidiabetic properties. Regular consumption of Tempe can play a crucial role in enhancing overall health and preventing various diseases. In conclusion, Tempe serves as an exemplary functional food option, offering immense health advantages to the Indonesian population. Its rich composition of bioactive compounds makes it a beneficial addition to the diet, promoting well-being and healthy living.
Photodegradation Of Methyl Orange (MO) Using TiO2/Zeolite From Coal Fly Ash Waste Under Acidic Conditions and H2O2 Addition Prakoso, Muhamad Iqbal; Maharani, Khairy Yunda; Ariq, Muhammad Rizki; Indah, Amalia Nurul; Apriansyah, Apriansyah; Iryani, Ani; Kusumawardani, Linda Jati; Syahputri, Yulian
Helium: Journal of Science and Applied Chemistry Vol 4, No 1 (2024): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v4i1.9503

Abstract

This study aims to degrade methyl orange dye by a photocatalytic method using TiO2/zeolite nanocomposite. The zeolite used is sourced from coal waste fly ash. While the TiO2/Zeolite nanocomposites were synthesized by the sol-gel method and analyzed using UV-Vis DRS to determine the band gap energy. The band gap energy obtained from calculation results of the Kubelka-Munk formula shows a value of 2.0 eV. This indicates that the working area of methyl orange photodegradation using TiO2/zeolite is in visible light. Optimization of the methyl orange photodegradation process in this study will be carried out in an acidic environment by varying the nanocomposite dose (0.05; 0.1; 0.2; 0.3; and 0.4 g) and the length of time of irradiation (15; 30; 45; 60; and 75 minutes). This study also conducted a study on the effect of adding H2O2. The optimum yield of percent degradation (%D) of methyl orange (MO) obtained was 98.37% from initial concentration 10 mg/L to 0,16 mg/L with varying doses of TiO2/zeolite 0.1 g and 30 minutes in an acidic environment and the addition of H2O2.
Application of Electrocoagulation in Soy Milk Wastewater Treatment Process with Variation of Time and Voltage Apriyanti, Mahyuni; Sutanto, Sutanto; Kusumawardani, Linda Jati
Helium: Journal of Science and Applied Chemistry Vol 3, No 2 (2023): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v3i2.8923

Abstract

Processing of soymilk liquid waste is carried out using the batch system electrocoagulation method. Variations in processing time are 20, 40, 60, 80, 100, and 120 minutes. The plate used is an aluminum plate measuring 10×5 cm. The electrode distance was 2 cm with an electrical voltage of 10 and 30 volts. The results of this research show that the best electrocoagulation process can reduce COD levels by 64.70%, TSS by 72.90% and increase the pH value to 5.17, however COD, TSS and pH levels are still above standard quality. Initial analysis results of soymilk wastewater with pH 4.06, COD 34408 mg/L, TSS 1550 mg/L, DO 0.30 mg/L, DHL 1090 μS/cm and Al 54.95 mg/L. After carrying out the electrocoagulation process, the pH value was 5.17, COD 12144 mg/L, TSS 420 mg/L, DO 0.37 mg/L, DHL 648 μS/cm and Al 231.33 mg/L at a voltage of 30 V with time. electrocoagulation 120 minutes.
The Effect of Distillation on Ethanol Content in Sageru and Sopi Samples from Enau Trees (Arenga Pinnata) Using UV-Vis Spectrophotometer Tabalessy, Oliviane Katherina; Santi, Santi
Helium: Journal of Science and Applied Chemistry Vol 4, No 1 (2024): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v4i1.9961

Abstract

Sopi is a traditional Maluku alcoholic drink produced from the fermentation of sageru from tapping palm trees (Arenga pinnata), one of the ingredients of which is ethanol. The research aimed to determine the ethanol content of sageru and beef samples from traditional and steam distillation. This experimental research method uses the UV-Vis spectrophotometer method to determine the effect of distillation on ethanol levels in sageru and sopi samples from Enau trees (Arengan pinnata). Based on the results of the quantitative analysis carried out using the UV-Vis spectrophotometry method, it was found that the alcohol content in traditional drinks (sageru and sopi) from palm plants (Arenga pinnata) was (13%-29%), which falls within the provisions of BPOM RI No. 6 of 2018 states that drinks that have ethyl alcohol or ethanol levels of more than 20% to 50% are included in group C. So, it can be concluded that the ethanol content was obtained in the sageru sample resulting from distillation at a temperature of 50 ºC to 78 ºC (13% - 27%). Ethanol levels were found in samples of traditional distilled beef (24% - 29%).
Processing of Liquid Confectionery Wastewater Using Combination of Electrocoagulation With UV Lights Method Pradina, Sisca Chandra; Sutanto, Sutanto; Nuraeni, Farida
Helium: Journal of Science and Applied Chemistry Vol 3, No 2 (2023): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v3i2.9291

Abstract

Liquid confectionery waste water treatment is carried out using a combination of batch system electrocoagulation methods and irradiation by UV light. The variations of contat time applied were 30, 45, 60, and 75 minutes, the electrode distance was 2 cm and voltage variation was 20 and 30 volts. In addition to reducing pollutant levels, UV lamps are also used to remove odors. The result showed that the electrocoagulation process and UV irradiation could reduce pollutant levels maximally at 30 volts 73 minutes. COD level decreased to 1646,40 mg/L (efficiency 76,34%) and TSS to 50 mg/L (efficiency 88,68%). UV irradiation is also effective in removing the odor of soft confectionery wastewater. This result meets the wastewater quality stabdard according to PerMenLH No. 5 of 2015 Appendix XXVI, it’s just that COD does not meet the quality standards, therefore further research is needed.
Antibacterial Potency of Bioactive Compounds from Areca catechu Nuts: A Molecular Docking Study Targeting 8H1B Mariska, Soraya; Rahmadi, Muhammad Zaki Ammar; Hanifa, Milla; Hasna, Naurah Rosyidah; Irawan, Siti Azara Nayla; Putri, Refsya Azanti; Saputra, Muhammad Yogi
Helium: Journal of Science and Applied Chemistry Vol 4, No 1 (2024): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v4i1.10284

Abstract

Areca catechu, a plant in the Arecaceae family, is rich in bioactive secondary metabolite compounds. Areca catechu has many benefits and potentials, including its antibacterial properties. This study aims to describe the potential of secondary metabolite compounds as antibacterials targeted at 8H1B and their toxicity profile through in silico analysis. The ligands used in this study were catechin, acatechu B, jacareubin, clindamycin as a comparison compound, and S-adenosylmethionine as a native ligand. The results showed that acatechu B had the lowest binding energy (-12.66 kcal/mol) compared to catechin (-9.44 kcal/mol), jacareubin (-8.99 kcal/mol), clindamycin (-10.93 kcal/mol), and S-adenosylmethionine (-11.76 kcal/mol). According to Biovia Discovery simulations, the Areca catechu bioactive compound interacts with 8H1B through van der Waals, conventional hydrogen bonds, and different variants of pi interaction. The toxicity profiles of the Areca catechu bioactive compound showed that they were not hepatotoxic, not mutagenic, not carcinogenic, and had safe LD50 values. These results suggest that the Areca catechu bioactive compound possesses antibacterial potential by targeting 8H1B.
Air Quality Analysis of Nitrogen Dioxide and Ozone (NO2 and O3) In The Chemistry Laboratory of Universitas Pakuan Bogor Pekerti, Unggul Tri; Widyatama, Awang; Imawati, Naufa Dea; Syahputri, Yulian
Helium: Journal of Science and Applied Chemistry Vol 3, No 2 (2023): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v3i2.9470

Abstract

Universitas Pakuan is one of the universities in Bogor which has a chemistry education laboratory for practical purposes. In this study, the room tested is the instrument room and preparation room. Air testing of this work environment refers to the Minister of Manpower Regulation No. 05 of  2018. The test results for the instrument room and preparation room found that the levels of nitrogen dioxide (NO2) and ozone (O3) in the two rooms do not show any indication of  NO2 and O3 pollution with result values below the detection limit testing (0.0066 ppm and 0.0491 ppm).

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