Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.6285
Arroh matus Syafaqoh, Li’aini, Putu Agus, H. Wibawa, A. Rahayu
Meliaceae are popularly used to produce terpenoid and limonoid compounds. These compounds have the potential as antioxidants, antimicrobials, insecticides, antipyretics, and anthelmintics. This research aims to determine the antioxidant and antimicrobial activity of Meliaceae leaves extract of Eka Karya Bali Botanic Garden plants collection. The dried leaves of 15 species of Meliaceae were extracted by methanol. In vitro antimicrobial tests were carried out on agar media inoculated by selected microbe. On the other hand, the antioxidant activity was assayed by 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging. As a result, Aphanamixis polystachya against Aspergillus niger (35.21 mm) and Cladosporium sp. (46.21), Toona hexandra against Fusarium solani (37.31 mm), Dysoxylum cauliflorum against Candida albicans (38.19 mm), Chisocheton pentandrus against Salmonella typhimurium (39.53 mm), Sandoricum koetjape against Staphylococcus aureus (50.07 mm), and Toona hexandra against Streptococcus nutans (42.25 mm) exhibited the strongest inhibitory effect. Furthermore, the antioxidant screening showed that Cipadessa baccifera, C. pentandrus, and Sandoricum koetjape exhibited strong antioxidant activity, while T. ciliata showed a very strong antioxidant activity with IC50 33.64 μg/mL. This study reveals an initial screening of the potential of various types of Meliaceae as a source of antioxidants and antibacterials. Furthermore, this information can be used as a new alternative for pharmaceutical companies and the industrial sector in the development of new products.
Meliaceae通常用于生产萜类和褐铁矿类化合物。这些化合物具有作为抗氧化剂、抗菌剂、杀虫剂、退烧药和驱虫剂的潜力。本研究旨在测定Eka Karya Bali植物园植物收藏的木犀科叶提取物的抗氧化和抗菌活性。用甲醇提取了15种木犀科植物的干叶。在所选微生物接种的琼脂培养基上进行了体外抗菌试验。另一方面，通过1，1-二苯基-2-苦基肼（DPPH）自由基清除来测定其抗氧化活性。结果，抗黑曲霉（35.21mm）和Cladosporium sp.（46.21）的Aphanamixis polystachia，抗茄镰孢（37.31mm）的Toona hexandra，抗白色念珠菌（38.19mm）的花椰菜脱氧菌，抗鼠伤寒沙门氏菌的Chishocheton penandrus（39.53mm），抗金黄色葡萄球菌的Sandoricum koetjape（50.07mm），香椿对坚果链球菌（42.25mm）的抑制作用最强。此外，抗氧化物筛选表明，Cipadessa baccifera、C.penandrus和Sandoricum koetjape表现出较强的抗氧化活性，而T.cilia表现出非常强的抗氧化活性（IC50为33.64μg/mL）。这项研究揭示了对各种类型的Meliaceae作为抗氧化剂和抗菌药物来源的潜力的初步筛选。此外，这些信息可以作为制药公司和工业部门开发新产品的新选择。
{"title":"In vitro Antimicrobial and Antioxidant Activity of Meliaceae Plants Collection of Eka Karya Bali Botanic Garden","authors":"Arroh matus Syafaqoh, Li’aini, Putu Agus, H. Wibawa, A. Rahayu","doi":"10.20884/1.jm.2022.17.3.6285","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.6285","url":null,"abstract":"\u0000 \u0000 \u0000Meliaceae are popularly used to produce terpenoid and limonoid compounds. These compounds have the potential as antioxidants, antimicrobials, insecticides, antipyretics, and anthelmintics. This research aims to determine the antioxidant and antimicrobial activity of Meliaceae leaves extract of Eka Karya Bali Botanic Garden plants collection. The dried leaves of 15 species of Meliaceae were extracted by methanol. In vitro antimicrobial tests were carried out on agar media inoculated by selected microbe. On the other hand, the antioxidant activity was assayed by 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging. As a result, Aphanamixis polystachya against Aspergillus niger (35.21 mm) and Cladosporium sp. (46.21), Toona hexandra against Fusarium solani (37.31 mm), Dysoxylum cauliflorum against Candida albicans (38.19 mm), Chisocheton pentandrus against Salmonella typhimurium (39.53 mm), Sandoricum koetjape against Staphylococcus aureus (50.07 mm), and Toona hexandra against Streptococcus nutans (42.25 mm) exhibited the strongest inhibitory effect. Furthermore, the antioxidant screening showed that Cipadessa baccifera, C. pentandrus, and Sandoricum koetjape exhibited strong antioxidant activity, while T. ciliata showed a very strong antioxidant activity with IC50 33.64 μg/mL. This study reveals an initial screening of the potential of various types of Meliaceae as a source of antioxidants and antibacterials. Furthermore, this information can be used as a new alternative for pharmaceutical companies and the industrial sector in the development of new products. \u0000 \u0000 \u0000","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45911120","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.6425
U. Supratman, Samuel San Parulian, N. Nurlelasari, Al Arofatus Naini, T. Mayanti, Erina Hilmayanti, D. Harneti, Darwati Darwati, R. Maharani, K. Farabi, R. Anwar, S. Fajriah, Muhamad Nurul Azmi, Y. Shiono
Sesquiterpenoids are derivatives of terpenoid compound that have a diverse skeleton and broad spectrum of biological activities, particularly anticancer activity. This research reported the isolation and elucidation structure of sesquiterpenoid from Chisocheton lasiocarpus stem bark, as well as their cytotoxic activity. Four sesquiterpenoid compounds, namely eudesm-4(15)-ene-1β,6β-diol (1), allo-aromadendrane-10α,14-diol (2), allo-aromadendrane-10β,14-diol (3) and guaianediol (4), were isolated for the first time from Chisocheton lasiocarpus stem bark. The chemical structure of all compounds was identified by spectroscopic analysis, including IR, MS, 1H-NMR, 13C-NMR and DEPT, and compared with previous reported spectral data. The cytotoxic activity of the isolated compounds against MCF-7 breast cancer line were examined by using the resazurin method. The results showed compound 1 shown the highest cytotoxic activity with IC50 108.08 ± 0.58 µM.
{"title":"Sesquiterpenoids from Stem Bark of Chisocheton lasiocarpus and Their Cytotoxic Activity against MCF-7 Breast Cancer Cell","authors":"U. Supratman, Samuel San Parulian, N. Nurlelasari, Al Arofatus Naini, T. Mayanti, Erina Hilmayanti, D. Harneti, Darwati Darwati, R. Maharani, K. Farabi, R. Anwar, S. Fajriah, Muhamad Nurul Azmi, Y. Shiono","doi":"10.20884/1.jm.2022.17.3.6425","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.6425","url":null,"abstract":"Sesquiterpenoids are derivatives of terpenoid compound that have a diverse skeleton and broad spectrum of biological activities, particularly anticancer activity. This research reported the isolation and elucidation structure of sesquiterpenoid from Chisocheton lasiocarpus stem bark, as well as their cytotoxic activity. Four sesquiterpenoid compounds, namely eudesm-4(15)-ene-1β,6β-diol (1), allo-aromadendrane-10α,14-diol (2), allo-aromadendrane-10β,14-diol (3) and guaianediol (4), were isolated for the first time from Chisocheton lasiocarpus stem bark. The chemical structure of all compounds was identified by spectroscopic analysis, including IR, MS, 1H-NMR, 13C-NMR and DEPT, and compared with previous reported spectral data. The cytotoxic activity of the isolated compounds against MCF-7 breast cancer line were examined by using the resazurin method. The results showed compound 1 shown the highest cytotoxic activity with IC50 108.08 ± 0.58 µM.","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42287039","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.5815
N. Ratnaningtyas, Fajar Husen, S.Si., M.Si., Hernayanti Hernayanti, N. Ekowati, B. H. Budianto
oprinus comatus (O.F. Mull.) is an edible mushroom that is used as an anti-inflammatory agent. Therefore, this study aims to determine the effect of inflammation treatment on symptoms alleviating, function maintenance, and inhibiting the process of tissue damage due to an increase in free radicals using drug formulations with high antioxidant compounds. This is a true experiment conducted using a Completely Randomized Design (CRD) with a post-test and a control group. The rats were divided into 6 categories, which include 1 healthy and 5 groups induced with 1% carrageenan. Out of the treatment groups, 3 were treated with ethanol extract of C. comatus fruiting body at doses of 250 (T1), 500 (T2), and 750 mg/kg BW (T3), 1 received diclofenac sodium (PC) and the other as a negative control (NC), were given extract for 14 days and induced with 0.5 mL carrageenan in paw of rats at day 15. The qualitative identification showed the extracts contains flavonoid, polyphenol, alkaloid, triterpenoid, steroids and saponins, and GC-MS analysis showed 10 putative metabolites compound. T2 group significantly decreased the levels of IL-1β (70.63%), IgE (59.04%), total leukocyte count (31.24%), plantar thickness (12.5%), edema volume (33.3%), and increased endothelial NO levels (48.2%).
{"title":"Anti-inflammatory and immunosuppressant activity of Coprinus comatus ethanol extract in carrageenan-induced rats (Rattus norvegicus)","authors":"N. Ratnaningtyas, Fajar Husen, S.Si., M.Si., Hernayanti Hernayanti, N. Ekowati, B. H. Budianto","doi":"10.20884/1.jm.2022.17.3.5815","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.5815","url":null,"abstract":"\u0000 \u0000 \u0000oprinus comatus (O.F. Mull.) is an edible mushroom that is used as an anti-inflammatory agent. Therefore, this study aims to determine the effect of inflammation treatment on symptoms alleviating, function maintenance, and inhibiting the process of tissue damage due to an increase in free radicals using drug formulations with high antioxidant compounds. This is a true experiment conducted using a Completely Randomized Design (CRD) with a post-test and a control group. The rats were divided into 6 categories, which include 1 healthy and 5 groups induced with 1% carrageenan. Out of the treatment groups, 3 were treated with ethanol extract of C. comatus fruiting body at doses of 250 (T1), 500 (T2), and 750 mg/kg BW (T3), 1 received diclofenac sodium (PC) and the other as a negative control (NC), were given extract for 14 days and induced with 0.5 mL carrageenan in paw of rats at day 15. The qualitative identification showed the extracts contains flavonoid, polyphenol, alkaloid, triterpenoid, steroids and saponins, and GC-MS analysis showed 10 putative metabolites compound. T2 group significantly decreased the levels of IL-1β (70.63%), IgE (59.04%), total leukocyte count (31.24%), plantar thickness (12.5%), edema volume (33.3%), and increased endothelial NO levels (48.2%). \u0000 \u0000 \u0000","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47512597","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.6126
A. Adawiah, Risma Nur Fitria, N. Saridewi, Farhan Maulana Azhar, Muhammad Shofyan Gunawan, Sri Komala
The glycine-modulated metal-organic framework (MOF) Cr-PTC-Gly was successfully synthesized for methylene blue elimination application. The Fourier Transform Infra-Red (FTIR) characterization showed the stretching vibration N-H at 2034 cm-1. The bands at 1506 and 1406 cm-1 are asymmetric and symmetric stretching vibrations (-COO) bound to Cr3+ ions and 3118 cm-1 of the hydroxyl (OH) functional group of H2O bound to the Cr3+ ion. The band gap energy of MOF Cr- PTC-Gly is 1.9 eV. The XRD analysis showed that MOF Cr-PTC-Gly has good crystallinity with a crystal size of 17.79 nm. MOF Cr-PTC-Gly with 50% glycine gave the most optimum elimination activity with an elimination capacity of 87.95 mg/gram via adsorption and photocatalytic degradation. The adsorption mechanisms were carried out via electrostatic interaction, hydrogen bonding, and π-π interaction. In contrast, photocatalytic degradation was carried out by forming free radical species with hydroxyl radicals (•OH) as a dominant species that contributed to the methylene blue degradation.
{"title":"Synthesis Glycine-Modulated Metal Organic Framework Cr-PTC-Gly for Synergetic Methylene Blue Adsorption and Photodegradation under Visible Light Irradiation","authors":"A. Adawiah, Risma Nur Fitria, N. Saridewi, Farhan Maulana Azhar, Muhammad Shofyan Gunawan, Sri Komala","doi":"10.20884/1.jm.2022.17.3.6126","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.6126","url":null,"abstract":"\u0000 \u0000 \u0000The glycine-modulated metal-organic framework (MOF) Cr-PTC-Gly was successfully synthesized for methylene blue elimination application. The Fourier Transform Infra-Red (FTIR) characterization showed the stretching vibration N-H at 2034 cm-1. The bands at 1506 and 1406 cm-1 are asymmetric and symmetric stretching vibrations (-COO) bound to Cr3+ ions and 3118 cm-1 of the hydroxyl (OH) functional group of H2O bound to the Cr3+ ion. The band gap energy of MOF Cr- PTC-Gly is 1.9 eV. The XRD analysis showed that MOF Cr-PTC-Gly has good crystallinity with a crystal size of 17.79 nm. MOF Cr-PTC-Gly with 50% glycine gave the most optimum elimination activity with an elimination capacity of 87.95 mg/gram via adsorption and photocatalytic degradation. The adsorption mechanisms were carried out via electrostatic interaction, hydrogen bonding, and π-π interaction. In contrast, photocatalytic degradation was carried out by forming free radical species with hydroxyl radicals (•OH) as a dominant species that contributed to the methylene blue degradation. \u0000 \u0000 \u0000","PeriodicalId":18773,"journal":{"name":"Molekul","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41531442","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.5946
Yudi Wicaksono, Shafira Faradiba Tsaniyah, Budipratiwi Wisudyaningsih, Kuni Zu’aimah Barikah, Lusia Oktora Ruma Kumala Sari
Atorvastatin calcium is a cholesterol-lowering drug that is very potent but difficult to dissolve in water, so its bioavailability is low. In this study, atorvastatin calcium-dipicolinic acid multicomponent solids were prepared using the liquid-assisted grinding method to improve atorvastatin calcium's solubility. Characterization of multicomponent solids was carried out using powder x-ray diffraction (PXRD), differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Solubility test was carried out by shaking method using distilled water media. The results showed that the particles of atorvastatin calcium - dipicolinic acid multicomponent solids had an irregular shape with rough and porous surface topography. The multicomponent solids have a diffractogram with specific peaks of 2θ at 8.8, 9.9, 11.5, 16.7, 19.1, 21.2, 22.4, 23.4, and 27.7°. The DSC thermogram of multicomponent solids showed a sharp endothermic peak at 181.9 °C (∆H=17.69 J/g), indicating its melting point. The FTIR spectra of atorvastatin calcium-dipicolinic acid multicomponent solids indicated an intermolecular interaction that was thought to be a hydrogen bond between the molecules of atorvastatin calcium and dipicolinic acid. The results of the solubility test showed that the atorvastatin calcium-dipicolinic acid multicomponent solids had a significantly increased solubility (p<0.05) compared to the solubility of pure atorvastatin calcium.
{"title":"Preparation of Atorvastatin Calcium-Dipicolinic Acid Multicomponent Solids by Liquid-Assisted Grinding Method to Increase Solubility","authors":"Yudi Wicaksono, Shafira Faradiba Tsaniyah, Budipratiwi Wisudyaningsih, Kuni Zu’aimah Barikah, Lusia Oktora Ruma Kumala Sari","doi":"10.20884/1.jm.2022.17.3.5946","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.5946","url":null,"abstract":"Atorvastatin calcium is a cholesterol-lowering drug that is very potent but difficult to dissolve in water, so its bioavailability is low. In this study, atorvastatin calcium-dipicolinic acid multicomponent solids were prepared using the liquid-assisted grinding method to improve atorvastatin calcium's solubility. Characterization of multicomponent solids was carried out using powder x-ray diffraction (PXRD), differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Solubility test was carried out by shaking method using distilled water media. The results showed that the particles of atorvastatin calcium - dipicolinic acid multicomponent solids had an irregular shape with rough and porous surface topography. The multicomponent solids have a diffractogram with specific peaks of 2θ at 8.8, 9.9, 11.5, 16.7, 19.1, 21.2, 22.4, 23.4, and 27.7°. The DSC thermogram of multicomponent solids showed a sharp endothermic peak at 181.9 °C (∆H=17.69 J/g), indicating its melting point. The FTIR spectra of atorvastatin calcium-dipicolinic acid multicomponent solids indicated an intermolecular interaction that was thought to be a hydrogen bond between the molecules of atorvastatin calcium and dipicolinic acid. The results of the solubility test showed that the atorvastatin calcium-dipicolinic acid multicomponent solids had a significantly increased solubility (p<0.05) compared to the solubility of pure atorvastatin calcium.","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43568067","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.5925
H. Hasanudin, W. R. Asri, W. Purwaningrum, F. Riyanti, N. Novia, R. Maryana, M. A. Muttaqii
Coconut oil mill waste (CMW) contained high free fatty acid (FFA) content which potentially could be converted into a value-added product such as fatty acid methyl ester (FAME). In this study, a montmorillonite-sulfonated carbon catalyst was used to evaluate the kinetic parameter of FFA conversion from CMW into FAME. The characterization of FTIR and SEM-EDX confirmed that the -SO3H groups were successfully incorporated into montmorillonite- carbon catalyst. The highest catalyst acidity (9.4 mmol/g) was achieved by a ratio of montmorillonite to sulfonated carbon of 1:3 % w/w. The kinetic study using montmorillonite-sulfonated carbon 1:3 % w/w showed that the reaction temperature and molar ratio of methanol to FFA (% v/v) were positively correlated to the reaction rate. The highest rate constant of esterification towards the product (k1), reactant (k2), and equilibrium were 0.1187, 0.0595, and 1.995, achieved by a temperature of 80 ˚C, respectively. The Arrhenius constant and activation energy towards the product were 3.3085×106 and 50.3 J/mole, respectively. The reaction temperature was positively correlated to the equilibrium constant, which indicated that the reaction was endothermic. The kinetic model validation revealed that the predicted value from the model was adequately in accordance with the experimental value, as indicated by a high coefficient of determination.
{"title":"Kinetic Parameters Investigation for The Esterification of Free Fatty Acid from Coconut Oil Mill Waste using Montmorillonite-Sulfonated Carbon from Glucose Composite Catalyst","authors":"H. Hasanudin, W. R. Asri, W. Purwaningrum, F. Riyanti, N. Novia, R. Maryana, M. A. Muttaqii","doi":"10.20884/1.jm.2022.17.3.5925","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.5925","url":null,"abstract":"Coconut oil mill waste (CMW) contained high free fatty acid (FFA) content which potentially could be converted into a value-added product such as fatty acid methyl ester (FAME). In this study, a montmorillonite-sulfonated carbon catalyst was used to evaluate the kinetic parameter of FFA conversion from CMW into FAME. The characterization of FTIR and SEM-EDX confirmed that the -SO3H groups were successfully incorporated into montmorillonite- carbon catalyst. The highest catalyst acidity (9.4 mmol/g) was achieved by a ratio of montmorillonite to sulfonated carbon of 1:3 % w/w. The kinetic study using montmorillonite-sulfonated carbon 1:3 % w/w showed that the reaction temperature and molar ratio of methanol to FFA (% v/v) were positively correlated to the reaction rate. The highest rate constant of esterification towards the product (k1), reactant (k2), and equilibrium were 0.1187, 0.0595, and 1.995, achieved by a temperature of 80 ˚C, respectively. The Arrhenius constant and activation energy towards the product were 3.3085×106 and 50.3 J/mole, respectively. The reaction temperature was positively correlated to the equilibrium constant, which indicated that the reaction was endothermic. The kinetic model validation revealed that the predicted value from the model was adequately in accordance with the experimental value, as indicated by a high coefficient of determination.","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48361870","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.5474
E. Enjarlis, M. Christwardana, S. Handayani, S. Fajriah, S. Bismo, Jehuda Reinhard Rahmani, Muhammad Tama Hazadin
The influence of pH and ozone dose, as well as ascorbic acid addition during the ozonation process, on the properties of Rice Bran Oil (RBO), was examined. The spectroscopic characteristic of RBO before and after ozonation was analysis directly, while the physicochemical property was assessed by density, viscosity, pH, iodine number, peroxide number, and acid number. With an increase in ozone dose, the carbon double bond in the RBO reduced. The primary product of the ozonation process is ozonide, and one of its by-products is 1,2,4-trioxolane, which contains a carbon single bond as a result of the ozonation reaction. According to this study, the pH 4 and ozone dose of 440 mg O3/L are the optimum parameters utilized in the RBO ozonation process. RBO's density and viscosity were 0.918 g/mL and 0.042 cP, respectively, at these conditions. Its iodine number, acid number, and peroxide number were also 3.173 g/g RBO, 2.3 mg NaOH/g RBO, and 55 mgeq/kg, respectively. Analyses of gas chromatography and nuclear magnetic resonance spectroscopy revealed the presence of 1,2,4-trioxolane. Ozone dosage is critical because greater ozone concentrations place RBO in a saturated state, making the 1,2,4-trioxolane unstable and readily destroyed, whereas lower temperatures can avoid this.
{"title":"Effect of pH and Ozone Dosage on Characteristic of Ozonated Rice Bran Oil","authors":"E. Enjarlis, M. Christwardana, S. Handayani, S. Fajriah, S. Bismo, Jehuda Reinhard Rahmani, Muhammad Tama Hazadin","doi":"10.20884/1.jm.2022.17.3.5474","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.5474","url":null,"abstract":"\u0000 \u0000 \u0000The influence of pH and ozone dose, as well as ascorbic acid addition during the ozonation process, on the properties of Rice Bran Oil (RBO), was examined. The spectroscopic characteristic of RBO before and after ozonation was analysis directly, while the physicochemical property was assessed by density, viscosity, pH, iodine number, peroxide number, and acid number. With an increase in ozone dose, the carbon double bond in the RBO reduced. The primary product of the ozonation process is ozonide, and one of its by-products is 1,2,4-trioxolane, which contains a carbon single bond as a result of the ozonation reaction. According to this study, the pH 4 and ozone dose of 440 mg O3/L are the optimum parameters utilized in the RBO ozonation process. RBO's density and viscosity were 0.918 g/mL and 0.042 cP, respectively, at these conditions. Its iodine number, acid number, and peroxide number were also 3.173 g/g RBO, 2.3 mg NaOH/g RBO, and 55 mgeq/kg, respectively. Analyses of gas chromatography and nuclear magnetic resonance spectroscopy revealed the presence of 1,2,4-trioxolane. Ozone dosage is critical because greater ozone concentrations place RBO in a saturated state, making the 1,2,4-trioxolane unstable and readily destroyed, whereas lower temperatures can avoid this. \u0000 \u0000 \u0000","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45978276","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}
Pub Date : 2022-11-19DOI: 10.20884/1.jm.2022.17.3.6279
Thinikan Thongkam, K. Hemavibool
This study presents a simple method for determination of potassium in microliter scale using a paper device together with a smartphone. The method begins with the ion-pair extraction of dibenzo-18-crown-6-K+ complex into dichloromethane with an excess amount of calmagite. The aqueous phase containing the remaining calmagite is transferred to the paper device, where a smartphone is used to capture the color and convert to RGB value. The linear detection range was found to cover potassium concentrations from 20 mg L-1 to 120 mg L-1. The detection and quantification are 5.41 mg L-1 and 18.03 mg L-1, respectively. Potassium detection was carried out in a variety of actual soil samples, and the results were validated against spectrophotometric results using a paired t-test, which indicated high accuracy. The proposed method is simple, fast, and inexpensive, and it requires no complicated equipment, making it ideally suited for detection of potassium in soil.
{"title":"An Indirect Colorimetric Method for Potassium Determination in Soil Using a Paper Device and Smartphone","authors":"Thinikan Thongkam, K. Hemavibool","doi":"10.20884/1.jm.2022.17.3.6279","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.6279","url":null,"abstract":"This study presents a simple method for determination of potassium in microliter scale using a paper device together with a smartphone. The method begins with the ion-pair extraction of dibenzo-18-crown-6-K+ complex into dichloromethane with an excess amount of calmagite. The aqueous phase containing the remaining calmagite is transferred to the paper device, where a smartphone is used to capture the color and convert to RGB value. The linear detection range was found to cover potassium concentrations from 20 mg L-1 to 120 mg L-1. The detection and quantification are 5.41 mg L-1 and 18.03 mg L-1, respectively. Potassium detection was carried out in a variety of actual soil samples, and the results were validated against spectrophotometric results using a paired t-test, which indicated high accuracy. The proposed method is simple, fast, and inexpensive, and it requires no complicated equipment, making it ideally suited for detection of potassium in soil.","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44734809","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}
Pub Date : 2022-11-18DOI: 10.20884/1.jm.2022.17.3.5039
S. Sujito, S. P. Pasaribu, T. Wirawan, A. S. Panggabean
The research about the utilization of modified gas-liquid separators in the determination of Hg ions by using the Cold Vapor Atomic Absorption Spectrophotometer (CV-AAS) method has been done. To optimize the measurement results, several parameters that affect the hydride generator have been studied. Some specified essential parameters are the type and concentration of acid, the level of SnCl2 as a reducing agent, sample volume and the analytical performance such as linearity (r), detection limit (LOD) and quantitation limit (LOQ), repeatability (% RSD), and accuracy have been studied. The results of the research showed the gas-liquid separator modified can be used instead of commercial gas- liquid separators. It was showed by the repeatability value as % RSD < 2/3 CV Horwitz values, the LOD was 0.2530 μg/mL, and the LOQ was 0.8432 μg/mL. The accuracy of this method was good shown by a recovery percentage of 101.6%. Based on the result of this research, the modified of gas-liquid separator can be used for the determination of Hg ions by using the CV-AAS method with valid results
{"title":"Gas-Liquid Separator Modified on CV-AAS System for Determination of Total Hg in the Industrial Wastewater Samples","authors":"S. Sujito, S. P. Pasaribu, T. Wirawan, A. S. Panggabean","doi":"10.20884/1.jm.2022.17.3.5039","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.3.5039","url":null,"abstract":"\u0000 \u0000 \u0000The research about the utilization of modified gas-liquid separators in the determination of Hg ions by using the Cold Vapor Atomic Absorption Spectrophotometer (CV-AAS) method has been done. To optimize the measurement results, several parameters that affect the hydride generator have been studied. Some specified essential parameters are the type and concentration of acid, the level of SnCl2 as a reducing agent, sample volume and the analytical performance such as linearity (r), detection limit (LOD) and quantitation limit (LOQ), repeatability (% RSD), and accuracy have been studied. The results of the research showed the gas-liquid separator modified can be used instead of commercial gas- liquid separators. It was showed by the repeatability value as % RSD < 2/3 CV Horwitz values, the LOD was 0.2530 μg/mL, and the LOQ was 0.8432 μg/mL. The accuracy of this method was good shown by a recovery percentage of 101.6%. Based on the result of this research, the modified of gas-liquid separator can be used for the determination of Hg ions by using the CV-AAS method with valid results \u0000 \u0000 \u0000","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46702590","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}
Pub Date : 2022-07-21DOI: 10.20884/1.jm.2022.17.2.5425
D. Basir, M. Miksusanti, S. Susilawati
Inseparable Ursolic acid and its isomeric oleanolic acid are the major compounds in Fagraea fragrans fruits. The white solid crystals , 3.1 % of these triterpenic acids are easyly isolated from alcoholic extracts of these dried fruits. They are well known in both cosmeticeutical and medicinal industries. Therefore the objective of this work is to derivative those to be the inseparable ethyl ursolate 3-ethyl ether [its isomeric ethyl oleanolate 3-ethyl ether], and to evaluate their anticancer activity against P-388 murine leukemia cells. The results are 71% of the derivatives have been successfully made from the inseparable ursolic [its isomeric oleanolic] acids by in situ reaction between those triterpenic acids with thionyl chloride and ethanol in benzene. The anticancer activity of ethyl ursolate 3-ethyl ether [its isomeric ethyl oleanolate 3-ethyl ether] against P-388 murine leukemia cells with IC50 value of 31.36 µg/mL is twofold (1.7) more potent then their mother compounds, the inseparable ursolic [its isomeric oleanolic] acids with IC50 value of 53.5 µg/mL.
{"title":"Derivatization of Inseparable Ursolic and Oleanolic Acids of Fagraea fragrans Fruits to Enhance Their Anticancer Activity","authors":"D. Basir, M. Miksusanti, S. Susilawati","doi":"10.20884/1.jm.2022.17.2.5425","DOIUrl":"https://doi.org/10.20884/1.jm.2022.17.2.5425","url":null,"abstract":"Inseparable Ursolic acid and its isomeric oleanolic acid are the major compounds in Fagraea fragrans fruits. The white solid crystals , 3.1 % of these triterpenic acids are easyly isolated from alcoholic extracts of these dried fruits. They are well known in both cosmeticeutical and medicinal industries. Therefore the objective of this work is to derivative those to be the inseparable ethyl ursolate 3-ethyl ether [its isomeric ethyl oleanolate 3-ethyl ether], and to evaluate their anticancer activity against P-388 murine leukemia cells. The results are 71% of the derivatives have been successfully made from the inseparable ursolic [its isomeric oleanolic] acids by in situ reaction between those triterpenic acids with thionyl chloride and ethanol in benzene. The anticancer activity of ethyl ursolate 3-ethyl ether [its isomeric ethyl oleanolate 3-ethyl ether] against P-388 murine leukemia cells with IC50 value of 31.36 µg/mL is twofold (1.7) more potent then their mother compounds, the inseparable ursolic [its isomeric oleanolic] acids with IC50 value of 53.5 µg/mL.","PeriodicalId":18773,"journal":{"name":"Molekul","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46783110","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：