Indonesian Journal of Chemical Science最新文献

Characterization and Kinetic Study of Methylene Blue Photocatalytic on ZnO/ZSM-5 亚甲基蓝光催化ZnO/ZSM-5的表征及动力学研究

Indonesian Journal of Chemical Science Pub Date : 2023-09-23 DOI: 10.30598//ijcr.2023.11-hln

Hellna Tehubijuluw, Fensia Analda Souhoka, Yuly Kusumawati, Didik Prasetyoko, Riki Subagyo, Reva Edra Nugraha, Aishah Abdul Jalil

{"title":"Characterization and Kinetic Study of Methylene Blue Photocatalytic on ZnO/ZSM-5","authors":"Hellna Tehubijuluw, Fensia Analda Souhoka, Yuly Kusumawati, Didik Prasetyoko, Riki Subagyo, Reva Edra Nugraha, Aishah Abdul Jalil","doi":"10.30598//ijcr.2023.11-hln","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-hln","url":null,"abstract":"Photodegradation of organic pollutants depends significantly on the structure of metal oxide-based semiconductor photocatalysts. ZnO/ZSM-5 has shown the potential to significantly improve its photocatalytic efficiency for removing waterborne pollutants. ZnO/ZSM-5 has been reported to be an active catalyst for degrading methylene blue. These methods commonly involve various catalytic reactions, with the Langmuir-Hinshelwood process being used to describe the reaction kinetics. A kinetic study on the photocatalytic degradation of methylene blue using ZnO/ZSM-5 was conducted under UV-LED lamp irradiation. ZnO/ZSM-5 was characterized using XRD, SEM, and N2 adsorption-desorption, and it was prepared via the impregnation method. The interaction between ZnO/ZSM-5 and methylene blue solutions over a period of 30 to 180 minutes was monitored using a UV-Vis spectrophotometer. The photocatalytic degradation of methylene blue followed first-order rate kinetics. The Langmuir-Hinshelwood (L-H) kinetic analysis revealed that the photocatalytic reaction constant (kc) was 4.207 L.mg-1. menit-1, and the Langmuir-Hinshelwood constant (K) was 261.509 L.mg-1.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135966930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antioxidant Activity, Cytotoxicity, and Identification of Secondary Metabolites of Kigelia africana from Waterpark Platinum Riau 水公园白金廖内河非洲基利亚的抗氧化活性、细胞毒性和次生代谢产物鉴定

Indonesian Journal of Chemical Science Pub Date : 2023-09-23 DOI: 10.30598//ijcr.2023.11-iis

Iis Yusma Fitri, Kurniawanti Kurniawanti, Gustini Syahbirin, Purwantiningsih Sugita

{"title":"Antioxidant Activity, Cytotoxicity, and Identification of Secondary Metabolites of Kigelia africana from Waterpark Platinum Riau","authors":"Iis Yusma Fitri, Kurniawanti Kurniawanti, Gustini Syahbirin, Purwantiningsih Sugita","doi":"10.30598//ijcr.2023.11-iis","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-iis","url":null,"abstract":"Antioxidants can prevent reactive oxygen-associated diseases, which trigger carcinogenesis, cardiovascular disease, and premature aging. India and Africa have mostly practiced sausage trees (Kigelia africana) as traditional medicine, whereas Indonesia is still limited. The research aims to determine the phytochemistry and bioactivity of the n-hexane fractions from crude methanol extract of the leaves and bark of the sausage tree as antioxidants and their toxicity. The sausage tree is derived from Waterpark Platinum Riau. The sausage trees were macerated with methanol and fractionated by n-hexane and ethyl acetate. All samples were tested for their antioxidant to 1,1-diphenyl-2-picrylhydrazyl (DPPH) and cytotoxicity to Artemia salina Leach larvae. Phytochemical results of methanol crude extract, n-hexane, and ethyl acetate fractions of leaves and sausage bark showed the presence of all secondary metabolites except alkaloids in the n-hexane fraction. Antioxidant and cytotoxic activity of stem and leaf bark ethyl acetate fraction was stronger than crude methanol extract and n-hexane fraction. Based on LC-MS/MS data, the secondary metabolite components that have contributed strongly antioxidant activity of this study are flavonoid compounds such as kaempferol and the derivatives, lignans (cubebin), and steroids (pregnant).","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135966931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, Evaluation, and Molecular Docking Study of 4-Monoacyl Resorcinol Against Tyrosinase Enzyme 抗酪氨酸酶4-单酰基间苯二酚的合成、评价及分子对接研究

Indonesian Journal of Chemical Science Pub Date : 2023-09-22 DOI: 10.30598//ijcr.2023.11-nov

Ade Danova, Yusuf Eka Maulana, Elvira Hermawati, Warinthorn Chavasiri

引用次数: 0

Phytochemical Tests and Antioxidant Activities of the Rhips Ginger (Zingiber Officinale Var Amarum.) 姜(Zingiber Officinale Var Amarum.)植物化学试验及抗氧化活性

Indonesian Journal of Chemical Science Pub Date : 2023-09-22 DOI: 10.30598//ijcr.2023.11-nur

Nurani Hasanela, Adriani Bandjar, Virenze K. Yanyaan, Hendro Hitijahubessy

{"title":"Phytochemical Tests and Antioxidant Activities of the Rhips Ginger (Zingiber Officinale Var Amarum.)","authors":"Nurani Hasanela, Adriani Bandjar, Virenze K. Yanyaan, Hendro Hitijahubessy","doi":"10.30598//ijcr.2023.11-nur","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-nur","url":null,"abstract":"Ginger is a traditional plant that thrives and has essential functions, including an antioxidant. This study aimed to determine the phytochemical content and test the antioxidant activity of fresh white ginger and powdered ginger (Zingiber officinale var. Amarum.). Two methods are used in this research: the phytochemical test and the antioxidant activity test using DPPH. Phytochemical tests, such as flavonoid, phenolic, steroid, and saponin, were conducted qualitatively. The antioxidant activity test was carried out using a UV-Vis spectrophotometer. Fresh white ginger and powdered ginger were extracted using the maceration method with water solvent. The study results showed that the effects of fresh white ginger extract obtained a yield of 64.08%. Meanwhile, powdered ginger extract was 58.68%. Phytochemical test results of fresh white ginger extract and powdered ginger (commercial) showed positive results for flavonoid, phenolic, and saponin compounds while adverse effects for steroids. Antioxidant activity test on fresh white ginger extract with water solvent showed an IC50 value of 25.41 ppm. The powdered ginger extract (commercial) has an IC50 value of 36.70 ppm. The results showed fresh white ginger and powdered ginger had relatively high antioxidant activity.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136098723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Rice Field Snails (Pila ampullacea) Extract as an Alternative Substitute for Protein Sources in Export-Quality Catfish Feed (Clarias sp.) 稻田螺(Pila ampullacea)提取物在出口优质鲶鱼饲料中替代蛋白质来源的应用

Indonesian Journal of Chemical Science Pub Date : 2023-09-04 DOI: 10.30598//ijcr.2023.11-sya

Syahruddin Kasim, Yusafir Hala, Lulu Sri Rahayu

{"title":"Application of Rice Field Snails (Pila ampullacea) Extract as an Alternative Substitute for Protein Sources in Export-Quality Catfish Feed (Clarias sp.)","authors":"Syahruddin Kasim, Yusafir Hala, Lulu Sri Rahayu","doi":"10.30598//ijcr.2023.11-sya","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-sya","url":null,"abstract":"The freshwater fishery commodity that ranks at the top in total production in Indonesia, and its high domestic consumption, is catfish (Clarias sp.). One of the efforts to provide alternative feeds is by using rice field snails (Pila ampullacea) due to their high protein content. This study aims to determine the content of P. ampullacea feed and its application as an alternative protein source in export-quality Clarias sp. The feed was prepared by combining P.ampullacea flour, rice bran, and corn flour in a ratio of 3:1:1. Analysis of water content was conducted using the weight reduction method, ash content using the ashing method, protein content using the Kjeldahl method, and fat content using the soxhletation method. The analysis results showed that P. ampullacea had water content of 7.97%, ash content of 10.36%, protein content of 50.17%, and fat content of 4.16%. Meanwhile, the P.ampullacea feed had water content of 10.49%, ash content of 8.26%, protein content of 48.74%, and fat content of 3.6%. The results indicated that the application of P.ampullacea to Clarias sp. led to an increase in protein and fat content every week, the levels found in the commercial feed used.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135453400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioelectrochemical Systems (BESs) Technology for The Production of Electrical Energy from Kepok Banana Stem 生物电化学系统(BESs)技术在香蕉茎生产电能中的应用

Indonesian Journal of Chemical Science Pub Date : 2023-09-02 DOI: 10.30598//ijcr.2023.11-sit

Sitti Chadijah, Firnanelty Firnanelty, Maswati Baharuddin Baharuddin, Sappewali Sappewali

{"title":"Bioelectrochemical Systems (BESs) Technology for The Production of Electrical Energy from Kepok Banana Stem","authors":"Sitti Chadijah, Firnanelty Firnanelty, Maswati Baharuddin Baharuddin, Sappewali Sappewali","doi":"10.30598//ijcr.2023.11-sit","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-sit","url":null,"abstract":"Bioelectrochemical Systems (BES) technology is a method for generating electric energy using bacteria as catalysts. The electricity is produced by Microbial Fuel Cells (MFCs), which represent the latest development in biological energy research. This study utilized substrates from banana stems and the bacterium Pseudomonas sp. The research aims to assess the potential of banana stems as a substrate in the MFC system and to determine the effects of adding a combination of an electrolyte solution and an appropriate buffering material to achieve maximum current, potential difference, and power density values. The results showed that the maximum current and potential difference achieved were 1.05 mA and 0.62 V, respectively, with a power density value of 446 mW/m². When combining the KMnO4 electrolyte solution with sodium phosphate buffer, a potential difference of 0.76 V and a current of 1.75 mA were obtained, resulting in a power density value of 911 mW/m². By using the K3[Fe(CN)6] electrolyte solution buffer with potassium phosphate buffer, a current of 1.14 mA was produced, and the power density value reached 406 mW/m².","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134969617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioprospective screening and characterization of isolates from Pterocarpus osun leaf and stem bark extracts 龙柏叶和茎皮提取物分离物的生物前瞻性筛选与特性研究

Indonesian Journal of Chemical Science Pub Date : 2023-09-01 DOI: 10.30598//ijcr.2023.11-ade

Adewale Elijah Fadeyi, Michael Olalekan Afolayan, Oluremi Isola Adeniran

{"title":"Bioprospective screening and characterization of isolates from Pterocarpus osun leaf and stem bark extracts","authors":"Adewale Elijah Fadeyi, Michael Olalekan Afolayan, Oluremi Isola Adeniran","doi":"10.30598//ijcr.2023.11-ade","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-ade","url":null,"abstract":"Antimicrobial resistance (AMR) ranks among the top 10 world health challenges of the 21st century, predicted that it will cause approximately 10 million deaths in 2050. Therefore, more investigation into identifying new antibiotics from natural sources is inevitable. Compounds from the leaf and stem bark of Pterocarpus osun were isolated using column chromatography, screened for their bioactivities, and characterized using the FTIR spectroscopy method in the ongoing search for novel antimicrobial therapies. The isolates were tested for antibacterial and antifungal activities against eleven pathogenic organisms. The zones of inhibition ranged in diameter from 22 to 30 mm. The minimum inhibitory concentrations were determined. Thin-layer chromatography was used to determine the purity of the compounds, and their retention factor was calculated. This ranged between 0.2424 and 0.8151. The melting points of the compounds were also recorded, as are FTIR spectra ranging from 4000 to 400 cm-1. Some of the peaks recorded are typical of single bond (4000-25000 cm-1), double bond (2000-1500 cm-1) with confirmation in the fingerprint (1500-400 cm-1) region but none in the triple bond (2500-2000 cm-1) region of the spectra. The antimicrobial screening results show that the identified compounds can potentially lead to the discovery of novel antibiotic medications.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave Assisted Hydrodistillation Essential Oil from Lime Peel Waste as Aromatherapy Candles 微波辅助蒸馏法提取青柠皮废精油作香薰蜡烛

Indonesian Journal of Chemical Science Pub Date : 2023-09-01 DOI: 10.30598//ijcr.2023.11-aul

Mariaulfa Mustam, Hijrah Amaliah Azis, Nurfika Ramdani, Nurafdaliana Zalzabila

{"title":"Microwave Assisted Hydrodistillation Essential Oil from Lime Peel Waste as Aromatherapy Candles","authors":"Mariaulfa Mustam, Hijrah Amaliah Azis, Nurfika Ramdani, Nurafdaliana Zalzabila","doi":"10.30598//ijcr.2023.11-aul","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-aul","url":null,"abstract":"Flavonoids belong to the extensive group of polyphenol compounds. They can function as antioxidants and antibacterials by denaturing bacterial cell proteins and damaging bacterial cells. One source of essential oils is lime peel, which is often discarded and goes unused. The distillation method utilizes microwaves, offering an alternative to conventional distillation techniques and resulting in enhanced effectiveness and efficiency. The Microwave Assisted Hydrodistillation (MAHD) method proves to be more energy-efficient, environmentally friendly, rapid, safe, and cost-effective. This study aims to assess the impact of the MAHD method on the quantity and quality of essential oils extracted from lime peels. Laboratory tests are conducted in accordance with Indonesian national standards. The overarching objective is to establish a process that transforms discarded lime peels into aromatherapy candles, contributing to respiratory health. The MAHD method is employed with a sample mass to distilled water solvent ratio of 1:1. The resulting essential oil undergoes analysis using the GC-MS method. According to the GC-MS test results, the compound with the highest percentage area is limonene at 98%. This is followed by trans-caryophyllene at 99% with a retention time of 12.422, and beta-selinene at 99% with a retention time of 13.191.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioactive Compounds and Microbacteria of Peel-Off Gel Mask Caulerpa racemosa 剥脱凝胶膜总状茎叶的生物活性成分及微生物

Indonesian Journal of Chemical Science Pub Date : 2023-08-28 DOI: 10.30598//ijcr.2023.11-tri

Tri Widayati Putri, Mutemainna Karim, Zul Khairiyah, Andi Fitri Ramadhani

{"title":"Bioactive Compounds and Microbacteria of Peel-Off Gel Mask Caulerpa racemosa","authors":"Tri Widayati Putri, Mutemainna Karim, Zul Khairiyah, Andi Fitri Ramadhani","doi":"10.30598//ijcr.2023.11-tri","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-tri","url":null,"abstract":"Caulerpa racemosa is a type of seaweed that has the potential to be cultivated because it is known and favored by the public.Caulerpa racemosa is used not only for consumption as food but also for beauty cosmetics because of its ingredients. This study aims to determine the Bioactive content and total plate count (TPC) of the Caulerpa racemosa peel-off gel mask. The pour plate method was used to determine the total plate number of mycobacteria and phytochemical testing in the form of tests for flavonoid, alkaloid, phenolic, tannin, triterpenoids, and saponin. The results showed that the total colony total plate count until the 3rd repetition had an average of 31 col/g. The results of the phytochemical test of the Caulerpa racemosa peel-off gel mask contained bioactive compounds: flavonoid, alkaloid, phenolic, tannins, triterpenoid, and saponin. Conclusion: The Total plate count of Caulerpa racemosa peel off the gel mask complies with Indonesian National standards (INS) with the content of bioactive compounds, namely tannins dan saponins. Caulerpa racemose was used for a pell-off gel mask for the first time.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135133809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and Characterization of Carboxymethyl Cellulose Production from Oil Palm Male Inflorescence as Food Stabilizer 油棕雄花羧甲基纤维素食品稳定剂的制备及性能研究

Indonesian Journal of Chemical Science Pub Date : 2023-08-15 DOI: 10.30598//ijcr.2023.11-mat

Rahmat Jainal, Sylvia Madusari, Vira Irma Sari, Halida Adistya Putri, Dela Febriana

{"title":"Preparation and Characterization of Carboxymethyl Cellulose Production from Oil Palm Male Inflorescence as Food Stabilizer","authors":"Rahmat Jainal, Sylvia Madusari, Vira Irma Sari, Halida Adistya Putri, Dela Febriana","doi":"10.30598//ijcr.2023.11-mat","DOIUrl":"https://doi.org/10.30598//ijcr.2023.11-mat","url":null,"abstract":"Male inflorescence residue of the oil palm rich in fibre and contains cellulose content and has the potential to synthesize Carboxymethyl Cellulose (CMC). Male inflorescence is considered necessary removed in the early stages of the oil palm cultivation process to develop stem size, string and robust root systems. This activity generates plentiful of oil palm male inflorescence residues in the plantation. The aim of this research is to synthesis and characterize CMC fabricated from oil palm male inflorescence (OPMI-CMC) waste for use as an ice cream stabilizer, using a variety of treatments, which are commercial CMC 0.2%, OPMI-CMC 0.1%, 0.2%, and 0.3%. The results showed that CMC can be produced from organic waste of male flowers of oil palm plants. The water content, pH, purity, and degree of substitution meet the standard. The optimal concentration of OPMI-CMC for ice cream stabilizer is 0.3% based on melting time and overrun value. The FTIR analysis shows that the main functional group of the OPMI-CMC is highly comparable. Therefore, to possibly be employed as an alternative to organic CMC for food stabilizers, other standards must be fulfilled, and further research is required.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135165651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0