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Jambi
INDONESIA
CHEMPUBLISH JOURNAL
Published by Universitas Jambi
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Arjuna Subject : -
Articles 126 Documents
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Claisen Rearrangement Toward Cyclic Compound on Different Organic Synthesis Methods: Short Review Saputra, Rizki Rachmad; Rosalina, Reny; Pramudita, Dimas; Wulandari, Oktavia Rahmi; Yuneta, Yuneta; Gracia, Amanda Natania; Sugiyani, Tina; Imelya, Marsya
Chempublish Journal Vol. 7 No. 2 (2023): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v7i2.26053

Abstract

The synthesis of functional and complex organic compounds is majorly performed by the Claisen rearrangement method. Claisen rearrangement is one of [3,3] sigmatropic rearrangements, a complex method in the synthesis of organic compounds, where it is mostly used to construct stereoselective compounds. It can be combined with other synthesis methods to synthesize organic compounds giving satisfactory results based on the method used, temperature, time, and yield produced. This review aimed to summarize several recent advances in synthesizing organic compounds through Claisen rearrangement reactions. An understanding of the mechanism and applications of this reaction might improve the ability to synthesize innovative and useful organic compounds in various fields of life sciences.
Exploring the Viability of Waste Durian (Durio zibethinus) Seeds and Cempedak (Artocarpus integer) Seeds as Nutritive Resources: An Analytical Study of Their Suitability via Alcohol and Glucose Assays Syarpin, Syarpin; Saputra, Rizki Rachmad; Haliza , Nur; Anista, Anista; Yanti, Helda; Sisilya, Tahsya Amanda; Fahmi, Rifaldi Lutfi
Chempublish Journal Vol. 7 No. 2 (2023): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v7i2.27983

Abstract

Durian (Durio zibethinus) and Cempedak (Artocarpus integer), prominent staples in Indonesia, harbor seeds that can be harnessed for the production of 'Tapai', a traditional fermented product. This fermentation process within cempedak and durian seeds manifests in the generation of alcohol and glucose at discernible thresholds. Motivated by the prevalent underutilization of durian and cempedak seeds leading to wastage, this study aims to assess the viabilities of Tapai derived from these seeds by scrutinizing their alcohol and glucose profiles. Employing a quantitative descriptive approach, the research centers on cempedak and durian seed Tapais as the primary samples. Focusing on variables like alcohol and glucose content, the investigative technique incorporates distillation and titration using the Luff Schoorl method. Results are subsequently organized in frequency distribution tables following coding and tabulation. Observations reveal that alcohol and glucose levels in cempedak seed Tapai on the 10th day stand at 0.00% and 30.05%, respectively, while on the 15th day, they escalate to 4.88% and 41.92%. In the case of durian seed Tapai, levels on the 10th day are recorded at 4.88% for alcohol and 36.90% for glucose. On the 15th day, these figures rise to 16.57% for alcohol and 46.53% for glucose. Ultimately, this study underscores that the alcohol and glucose concentrations in cempedak and durian seed Tapais experience progressive augmentation over a 5-day period, rendering them safely consumable in moderate quantities.
Analysis Of Calcium Levels in Wet and Dried Anchovies at Traditional Markets in Bekasi City Safitri, Fadliyah Rani; Sari, Elfira Maya; Nurfajriah, Siti
Chempublish Journal Vol. 7 No. 2 (2023): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v7i2.28526

Abstract

Anchovy is a food that is widely consumed by the people of Indonesia because it has high quality and affordable prices for the middle and lower economic class. Anchovy as a source of calcium is very good for preventing osteoporosis, the formation and maintenance of bones and teeth, smooth muscle function, and the nervous system. The purpose of this study was to determine the calcium levels of wet anchovies and dried anchovies sold in traditional markets in the city of Bekasi. Determination of calcium content of wet anchovies and dried anchovies can be determined using atomic absorption spectrophotometry (AAS). Data were analyzed using descriptive analysis. The results of the analysis of the highest calcium levels in wet anchovies were 653.05 mg/100g and the lowest was 517.56 mg/100g. The highest calcium level in dried anchovies is 611.02 mg/100g and the lowest is 148.33 mg/100g. These results indicate that there are differences in calcium levels in wet anchovies and dried anchovies. This occurs due to the presence of water content and salt content in anchovy which affects the high and low calcium  results in the analysis.
Inhibitor Korosi dari Ekstrak Daun Sambang Darah (Excoecaria cochinchinensis L.) pada Baja Lunak Dalam HCl: indonesia Gusniardi, Vira Anggita; Putri, Sanaq Elfira; Suryati, Suryati; Emriadi, Emriadi
Chempublish Journal Vol. 7 No. 2 (2023): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v7i2.29254

Abstract

Corrosion inhibition studies in mild steels in HCl medium by extracts of sambang darah leaves (Excoecaria cochinensis L.) (EDSD) have been conducted using weight loss methods, Fourier-Transform Infrared Spectroscopy (FTIR), contact angle and Scanning Electron Microscopy (SEM). The study is aimed at determining the effectiveness of EDSD inhibition as a corrosion inhibitor in HCl medium. The inhibition efficiency was found to increase with increasing concentration of EDSD and decrease with increasing temperature. The results showed that EDSD was capable of inhibiting mild steel corrosion with an inhibitory efficiency of 87.972% at EDSD 6 g/L in 1 M HCl solution. EDSD adsorption on mild steel surfaces follows Langmuir's isoterm adsorption. The FTIR analysis showed interaction between the EDSD and the surface of the mild steel. The contact angle analysis indicated that the mild steel surface is hydrophobic with the presence of the EDSD. SEM analysis shows a change in the surface of mild steel immersed in a 1 M HCl medium without and with the addition of EDSD.
Study on The Ability of H2O2 and The Effective Concentration of CuSO4 in Degrading Cyanide Niati, Sri Murda; Lukman, Lukman; Supraptiah, Endang; Cahya, Gemala
Chempublish Journal Vol. 7 No. 2 (2023): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v7i2.30438

Abstract

PT. Aneka Tambang conducts gold processing using NaCN reagents, then from the gold processing process produces waste containing cyanide which can cause damage to the environment. One method used to reduce cyanide concentrations is the Degussa method. The Degussa method is a method to degrade free cyanide in waste by using H2O2 and Cu2+ ions as a catalyst source so that it becomes a harmless cyanide compound (cyanate ion). The purpose of the study was to determine the ability of hydrogen peroxide and determine the effective concentration of copper sulfate in degrading cyanide in the Degussa process and determine the level of stability of hydrogen peroxide oxidizers in the open air. Sample testing was carried out by varying the H2O2 retrieval time, variations in H2O2 dilution factor and copper sulfate concentration variations, then the sample was stirred with a jartes stirrer for 15 minutes. Cyanide is determined by spectrophotometer, the absorbance obtained is fed into the linear regression equation so that the final free cyanide concentration is obtained. From the experiment, it can be concluded that the concentration of cyanide degradation is effectively obtained when hydrogen peroxide and copper sulfate that have been mixed in the mixing tank are right out of use.
Potential of Organometallic Complex Compounds as Anticancer Drugs: A Review Ardhani, Zaliari Nafisa; Pasaribu, Marvin Horale; Prisnanda, Risky; Anggraeni, Maya Erliza; Iqbal, Rendy Muhamad
Chempublish Journal Vol. 8 No. 1 (2024): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v8i1.31409

Abstract

Cancer is one of the deadliest diseases in the world. Currently, there are various types of anticancer drugs that are used to treat cancer, but they still have various side effects that can interfere with the quality of life of patients. Organometallic complexes (OCOs) are chemical compounds consisting of metal atoms bonded to carbon atoms. OCOs have various potential to be used as anticancer drugs, including their ability to specifically target cancer cells, inhibit cancer cell growth, and reduce the side effects of other anticancer drugs. The mechanism of action of OCOs involves interactions with nucleophilic molecules within the cell, including DNA, RNA, and proteins, as well as the formation of additional platinum products. In this review, we will discuss organometallic compounds that can function as anticancer drugs, such as platinum, ruthenium, iron, carboplatin, and oxaliplatin, which have been shown to be effective in fighting cancer. We will also discuss the mechanism of action of these compounds in cancer cells and the types of cancer cells that can be treated with organometallic compounds.
Synthesis of Carboxymethyl Cellulose from Mangrove Nipah (Nypa fruticans) as Vitamin C Coating for Drug Delivery System Delviani, Delviani; Maharani, Vioala Giary Rizkillah; Shadrina, Putri Nur; Ali, Noha; Tarigan, Indra Lasmana
Chempublish Journal Vol. 8 No. 1 (2024): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v8i1.31722

Abstract

Vitamin C is one of the substances needed by the human body which acts as an antioxidant that effectively overcomes the effects of free radicals that damage cells in the body, but vitamin C has properties that are easily oxidized so that innovation is needed to coat (encapsulate) vitamin C in the form of capsules as a drug delivery system. One polymer that can be used for vitamin C encapsulation is cellulose. The cellulose content can be found in the skin and nipah fruit and then synthesized into carboxymethyl cellulose as a vitamin C coating. The microencapsulation method was carried out by mixing 3 g of carrageenan-CMC mixture with variations in the ratio of 1:0; 1:0.5 and 1:1 (%b/b). The encapsulated small beads were made in 200 mL of 2M KCl-CaCl solution by extrusion technique. The microencapsulant was then drained and continued with the crosslinking stage using Glutaraldehyde (GA) 1%. In this in vitro oral simulation study, the encapsulation ratio that produced the best treatment with the highest percentage of drug solubility in the intestine was the ratio (1:0.5), followed by (1:1) and the smallest (1:0) with percentage values of 15.42; 14.06; and 1.67 percent, respectively.
pengaruh efikasi diri dan kemandirian belajar peserta didik terhadap prestasi belajar kimia kelas X SMA Negeri 15 Pekanbaru Rahmawati, Ayu; Anwar, Lenny; Rasmiwetti, Rasmiwetti; Nursofia, Yesi
Chempublish Journal Vol. 8 No. 1 (2024): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v8i1.32867

Abstract

Self-efficacy and learning independence are important factors in improving chemistry learning achievement and these factors must be mastered by students. This study aims to determine the effect of self-efficacy and learning independence on chemistry learning achievement partially or simultaneously. This type of research is a survey-research with a quantitative approach. The data collection methods for this study are questionnaires and documentation. The self-efficacy and learning independence questionnaires used were 21 questions after being validated. The questionnaires were distributed to all samples of 119 students taken using the simple random sampling technique. Documentation was used to collect data on chemistry learning achievement scores. Data analysis used in this study was multiple linear regression analysis. The results of the study showed (1) There is a positive and significant effect of self-efficacy partially on chemistry learning achievement, (2) there is a positive and significant effect of learning independence on learning achievement, (3) There is a positive and significant effect between self-efficacy and learning independence simultaneously on chemistry learning achievement.
Optimization of Liquid Fructose Sugar Production from Cassava Peel Waste using the Isomerization Process Debora, Ratu Mayoreta; Hermawan, Dicky Candra; Utami, Isni; Nurcholis, Fahcrul
Chempublish Journal Vol. 8 No. 1 (2024): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v8i1.33117

Abstract

Uji Efektivitas Antioksidan Moisturizer Ekstrak Daun Randu (Ceiba Pentandra (L.) Gaertn.) dengan Metode DPPH Muadifah, Afidatul; Tilarso, Dara Pranidya; Putri, Amalia Eka; Sowe, Momodou Salieu
Chempublish Journal Vol. 8 No. 1 (2024): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v8i1.33234

Abstract

Dry skin can often cause psychological discomfort. Moisturizer is a preparation that is used to improve dry skin. Kapok plant (Ceiba pentandra L. Gaertn) can be used as an active ingredient of moisturizer and can be used as a treatment, where the chemical content in kapok leaves are flavonoids, saponins, alkaloids, phenolic compounds, tannins and terpenoids as antioxidants. This study aims to determine the antioxidant activity of kapok leaf extract and moisturizer preparations with DPPH method using UV-Vis spectrophotometer, physical quality of preparations and antioxidant activity of moisturizer preparations using DPPH method. Kapok leaf extract was made in various concentrations, namely 20 ppm, 40 ppm and 60 ppm. The IC50 value of kapok leaf extract is 67.4007 ppm which has strong antioxidant activity. Then variations in the concentration of kapok leaf extract were put into the formulation of moisturizer preparations, the results of moisturizer preparations of kapok leaf extract and vitamin C met the requirements of the physical quality test. The moisturizer preparation was continued and tested for antioxidant activity using the DPPH method with ascorbic acid as a comparison. The results of the IC50 value on the kapuk leaf extract moisturizer preparation are 110.065 ppm which is classified as having moderate antioxidant activity and while the vitamin C moisturizer preparation is 9.8417 ppm which is classified as having very strong antioxidant activity.

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