Indonesian Journal of Chemical Science and Technology (IJCST)最新文献_第2页

Exploration of Lipid Content in Sargassum binderi Algae from the North Coast of Manokwari West Papua 探索西巴布亚马诺夸里北海岸马尾藻中的脂质含量

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2024-03-01 DOI: 10.24114/ijcst.v7i1.56442

Jamius Bin Stepanus, D. Kolibongso

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Type Design of Continuous Stirred Tank Reactors (CSTRs) for Bath Bomb Lavender Production 用于生产浴缸薰衣草的连续搅拌罐反应器（CSTR）的类型设计

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2024-03-01 DOI: 10.24114/ijcst.v7i1.56441

R. Namira, Atha Nissa

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Formulation dan Phyical Stability Test Of Turi Leaf Extract (Sesbania grandiflora L.) Silver Nanoparticle Soap 都里叶（Sesbania grandiflora L.）提取物银纳米粒子皂的配制和植物稳定性测试

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2024-03-01 DOI: 10.24114/ijcst.v7i1.56444

Astri Aulia Savitri, Wilda Amananti, Joko Santoso

{"title":"Formulation dan Phyical Stability Test Of Turi Leaf Extract (Sesbania grandiflora L.) Silver Nanoparticle Soap","authors":"Astri Aulia Savitri, Wilda Amananti, Joko Santoso","doi":"10.24114/ijcst.v7i1.56444","DOIUrl":"https://doi.org/10.24114/ijcst.v7i1.56444","url":null,"abstract":"One metal that is widely researched is silver (Ag) which can be used as an antibacterial and antifungal. The method that is widely developed is the biological method, also called biosynthesis. Biosynthesis is a synthesis method using media from plant extracts. This research was conducted to determine the best formulation of Ag nanoparticle soap from turi (sesbania grandiflora) leaf extract based on its stability test. To obtain turi leaf extraction using the infusion method, a flavonoid compound test was carried out to determine the flavonoid compound content. After knowing the existence of flavonoid compounds, the wavelength was determined using UV-Vis Spectrophotometry. In the nanoparticle soap formula, a nanoparticle soap preparation was made which was then tested for the physical quality of Ag nanoparticle soap from turi leaf extract (Sesbania Grandiflora L). The gel-shaped preparation has a characteristic oleum rosae odor and a yellow to blackish soap color. Test the homogeneity to see if there are coarse grains on the surface of the soap. The specific gravity test results of all soap formulations meet the criteria for good soap. The high foam value in soap preparations is between 6.1 – 12.5 mM. The results of measuring the absorption values for concentrations of 1 mM, 2 mM, and 3 mM show that the optimum absorption results in liquid soap preparations are a concentration of 3 mM with a wavelength of 300 nm with an absorbance value of 1.105. The research results showed that turi leaf extract (sesbania grandiflora L) had an effect on the physical stability of Ag nanoparticle soap and met the standards set by SNI. Among formulation 1 with a concentration of 0.03, formulation II with a concentration of 0.06 and formulation III with a concentration of 0.09, the turi leaf extract soap preparation showed the best physical properties in formulation 1 with a concentration of 0.03 in the pH stability test.","PeriodicalId":13519,"journal":{"name":"Indonesian Journal of Chemical Science and Technology (IJCST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140085197","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 Test of Barangan Banana Peel (Musa Acuminata Linn) Etanol Extract With DPPH Method DPPH法测定巴兰干香蕉皮乙醇提取物抗氧化活性

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49373

Nurul Arista, R. Siregar

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Characterization of Silica Nanoparticles from Pumice as an Aerogel Adsorbent 浮石二氧化硅纳米颗粒作为气凝胶吸附剂的表征

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49368

Rahma Hidayah, D. Kurniawati, Alizar Alizar

引用次数: 0

Adsorption Of Soluble Ammoniac Using A Porous Polymer Composite Cu-(TAC) And Activated Carbon Empty Fruit Palm Oil 多孔聚合物复合Cu-(TAC)与活性炭空果棕榈油吸附可溶性氨

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49375

Rissah Maulina, R. Selly, H. Nasution, Jasmidi Jasmidi, M. Zubir, Siti Rahmah, P. Faradilla

{"title":"Adsorption Of Soluble Ammoniac Using A Porous Polymer Composite Cu-(TAC) And Activated Carbon Empty Fruit Palm Oil","authors":"Rissah Maulina, R. Selly, H. Nasution, Jasmidi Jasmidi, M. Zubir, Siti Rahmah, P. Faradilla","doi":"10.24114/ijcst.v6i2.49375","DOIUrl":"https://doi.org/10.24114/ijcst.v6i2.49375","url":null,"abstract":"This study aims to determine the stages in the process of making activated carbon, synthesis of porous polymer composites Cu(TAC) and activated carbon composites (KA-Cu(TAC) for adsorption of dissolved ammonia (NH4OH). To know the characterization results of activated carbon and KA- Cu(TAC), as well as knowing the optimum mass, concentration, and contact time of activated carbon KA-Cu(TAC) for the adsorption of dissolved ammonia. The research stages started from Empty Oil Palm Bunches (EFB) used as biosorbents for carbon production at 500oC. The resulting product was activated with H3PO4, then modified with porous polymer Cu(TAC) to make a composite. The KA-Cu(TAC) composite was synthesized by reflux method. Then MOFs, activated carbon and KACu(TAC) composite were characterized by BET. The BET characterization results showed that the successfully synthesized KA-Cu(TAC) composite experienced an increase in surface area.In the NH4OH adsorption process the optimum mass efficiency on activated carbon still increased at 8 grams while the KA-Cu(TAC) composite obtained an efficiency of 36, 6% and optimally at a mass of 4 g. At variations in concentration, the efficiency of the two samples still decreased. And the optimum time efficiency obtained in the NH4OH adsorption process with activated carbon was 70% and the KA-Cu(TAC) composite was 86.6%, both samples were equally optimal at 75 minutes.","PeriodicalId":13519,"journal":{"name":"Indonesian Journal of Chemical Science and Technology (IJCST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91430443","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 of Cu-(TAC) Composite with Oil Palm Empty Fruit Bunch Waste Activated Carbon Through the Adsorption Mechanism of βCarotene 油棕空果串废活性炭吸附β -胡萝卜素合成Cu- TAC复合材料

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49371

Lidia Mutia Sari, Jasmidi Jasmidi, H. Nasution, M. Zubir, Siti Rahmah, R. Selly, P. Faradilla

{"title":"Synthesis of Cu-(TAC) Composite with Oil Palm Empty Fruit Bunch Waste Activated Carbon Through the Adsorption Mechanism of βCarotene","authors":"Lidia Mutia Sari, Jasmidi Jasmidi, H. Nasution, M. Zubir, Siti Rahmah, R. Selly, P. Faradilla","doi":"10.24114/ijcst.v6i2.49371","DOIUrl":"https://doi.org/10.24114/ijcst.v6i2.49371","url":null,"abstract":"This study aims to determine the adsorption and desorption abilities of activated carbon and Cu-(TAC) composites in the β-carotene adsorption process on Crude Palm Oil (CPO). Oil Palm Empty Fruit Bunches (EFB) are used as activated carbon and modified with MOFs Cu-(TAC). Activated carbon and Cu-(TAC) composites were characterized by XRD, SEM-EDX, and BET. The concentration of β-carotene absorbed during the adsorption process was analyzed using a UV-Vis spectrophotometer. The variations used to determine the optimum conditions for absorption of β-carotene were the mass variation of the adsorbent and the variation in the contact time between the adsorbent and adsorbate. The results of the characterization of activated carbon showed a sharp absorption in the presence of O-H, C-H and C-O groups indicating the presence of cellulose. Activated carbon is amorphous and the Cu-(TAC) composite has a crystal structure and its pore size is mesoporous. The optimum conditions for the use of activated carbon for β-carotene adsorption were the mass variation of 8 grams with 0.495 ppm of β-carotene and contact time at 120 minutes with 2.605 ppm of β-carotene. The optimum condition of the Cu-(TAC) composite in the β-carotene adsorption process was at 4 gram mass variation with 1.026 ppm β-carotene content and optimum contact time at 60 minutes with 6.384 ppm β-carotene content. The ability of desorption can be seen from the percentage of desorption showing activated carbon in the 150th minute with 96.252% while in the Cu-(TAC) composite in the 30th minute with 88.188%.","PeriodicalId":13519,"journal":{"name":"Indonesian Journal of Chemical Science and Technology (IJCST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78571775","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

The Jasmine Plant Growth Effect Supplemented with Liquid Organic Fertilizer from Banana Peels 添加香蕉皮液态有机肥对茉莉植株生长的影响

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49362

R. Selly, Angel Shylvia Panjaitan, Dinda Natalisa Br. Gurusinga,, Dira Khairunissa, Santa Maria Manalu, Siti Rahmah

{"title":"The Jasmine Plant Growth Effect Supplemented with Liquid Organic Fertilizer from Banana Peels","authors":"R. Selly, Angel Shylvia Panjaitan, Dinda Natalisa Br. Gurusinga,, Dira Khairunissa, Santa Maria Manalu, Siti Rahmah","doi":"10.24114/ijcst.v6i2.49362","DOIUrl":"https://doi.org/10.24114/ijcst.v6i2.49362","url":null,"abstract":"Liquid organic fertilizer (LOF) is a solution resulting from the decomposition of organic matter originating from plant residues, agro-industrial waste, animal waste, and human waste containing more than one nutrient. LOF can be made from liquid organic matter (liquid organic waste), by composting and providing composting activators so that a LOF that is stable and contains complete nutrients can be produced. The use of LOF has the advantage that although it is often used it does not damage the soil and plants, the use of organic waste as fertilizer can help improve soil structure and quality, because it contains nutrients and other organic matter. The process of adding different fertilizers to the plants for 10 days showed that there were different height changes for each plant. With only water, the plants only reach 0.1 cm difference in 7 days. The plants that were given LOF and NPK (Chemical Fertilizer) gained height in only 4 days with heights 15.6 cm and 16 cm respectively. The growth percentage between LOF and NPK showed a significant difference in 4 days with 0.6% and 3.2 % respectively.","PeriodicalId":13519,"journal":{"name":"Indonesian Journal of Chemical Science and Technology (IJCST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87976818","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

Comparison between Transesterification Reaction with Microwave Heating and Conventional Heating for Biodiesel Production from Coconut Oil with Alkaline Catalyst 微波加热与常规加热反应制备椰子油碱性生物柴油的比较

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49364

Srunika Boangmanalu, E. Ginting

引用次数: 0

Synthesis and Characterization of Activated Carbon/Alginate/Nanocellulose-Cu Composites 活性炭/海藻酸盐/纳米纤维素- cu复合材料的合成与表征

Indonesian Journal of Chemical Science and Technology (IJCST) Pub Date : 2023-07-31 DOI: 10.24114/ijcst.v6i2.49369

Atikah Nur Syahirah, Jasmidi Jasmidi, Z. Muchtar, Siti Rahmah, A. Pulungan, M. Zubir, R. Selly, P. Faradilla

{"title":"Synthesis and Characterization of Activated Carbon/Alginate/Nanocellulose-Cu Composites","authors":"Atikah Nur Syahirah, Jasmidi Jasmidi, Z. Muchtar, Siti Rahmah, A. Pulungan, M. Zubir, R. Selly, P. Faradilla","doi":"10.24114/ijcst.v6i2.49369","DOIUrl":"https://doi.org/10.24114/ijcst.v6i2.49369","url":null,"abstract":"OPEFB is one source of natural fiber-based composites which have the potential to become activated carbon and nanocellulose. This study aims to synthesize and characterize the activated carbon/alginate/nanocellulose-Cu composite. The characterization used in this study is FTIR and PSA. The synthesis of activated carbon/alginate/nanocellulose-Cu composites began with a process of carbonization and activation with H3PO4 to produce Activated Carbon. Followed by a bleaching process with NaClO2 and a delignification process with Na2SO3 and NaOH to produce Nanocellulose. Alginate using commercial alginate. Furthermore, the three ingredients were mixed until homogeneous and put into a 0.1M CuSO4 solution to produce beads. The results of the characterization of characterization of PSA Nanocellulose obtained a particle size of 41.05 nm and the result of FTIR characterization on the activated carbon/alginate/nanocellulose-Cu composite contained the functional group OH group, triple C bond from stretching alkyne, C=C aromatic group, C-H alkane group, C-O group, the P=O stretching vibration of the P-O-C group and the alcohol OH group expressing the active carbon; there are functional groups of hydroxyl (OH), carboxyl, carbonyl, and C-O-C and –COOH bonds which represent alginate and there are OH functional groups, stretching C-H bonds, C-O stretching, stretching C-C, and β- glucosidic bonds between glucose units which indicate nanocellulose.","PeriodicalId":13519,"journal":{"name":"Indonesian Journal of Chemical Science and Technology (IJCST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73371744","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