Pub Date : 2019-01-01DOI: 10.5220/0008858101410144
T. M. Thant, N. Aminah, A. Kristanti, R. Ramadhan, H. Aung, Y. Takaya
In a search for bioactive constituents from Myanmar medicinal plants, a carbazole alkaloid, named 7hydroxy heptaphylline (1) was isolated from the root of Clausena excavata. The structure of isolated compound was elucidated based on spectrophotometric data such as UV-vis, FT-IR, NMR and HRMS data. The cytotoxicity of the isolated compound (1) was evaluated by MTT assay against on HeLa cancer cells. The compound (1) exhibited moderate inhibition activity with IC50 41.4 μg/ml.
{"title":"Cytotoxic Carbazole Alkaloid from the Root of Clausena cxcavata on Hela Cell Line","authors":"T. M. Thant, N. Aminah, A. Kristanti, R. Ramadhan, H. Aung, Y. Takaya","doi":"10.5220/0008858101410144","DOIUrl":"https://doi.org/10.5220/0008858101410144","url":null,"abstract":"In a search for bioactive constituents from Myanmar medicinal plants, a carbazole alkaloid, named 7hydroxy heptaphylline (1) was isolated from the root of Clausena excavata. The structure of isolated compound was elucidated based on spectrophotometric data such as UV-vis, FT-IR, NMR and HRMS data. The cytotoxicity of the isolated compound (1) was evaluated by MTT assay against on HeLa cancer cells. The compound (1) exhibited moderate inhibition activity with IC50 41.4 μg/ml.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72743496","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 : 2019-01-01DOI: 10.5220/0008855200960099
Rizki Damayanti, Tamrin, Eddyanto, Z. Alfian
This aim of this research was to determine the main compounds, physico-chemical properties and the potential of Illcium verum essential oils as antibacterial agent. Essential oil was obtained by steam distillation of dried sample method. The yield of distillation of 500 grams of Illcium verum dry sample was 1.8% with physico-chemical properties of specific gravity 0.978 gr / mL and index of refraction 1.3284. The results of volatile oil characterization using GC-MS showed that the main compounds contained were anetols (97.03%). The anti-bacterial test results for gram-positive Staphylococcus aureus (S.aureus) and negative Escherichia coli (E.coli) bacteria indicate that Illcium verum essential oil has the potential as an
本研究的目的是确定莪术精油的主要成分、理化性质及其作为抗菌药物的潜力。采用干样蒸馏法得到精油。500 g茴香干品的蒸馏得率为1.8%，理化性质为比重0.978 gr / mL，折射率1.3284。GC-MS表征结果表明，其挥发油成分主要为挥发油类化合物(97.03%)。对革兰氏阳性金黄色葡萄球菌(S.aureus)和阴性大肠杆菌(E.coli)的抑菌试验结果表明，莪术精油具有潜在的抗氧化活性
{"title":"Illicium verum Essential Oil as Antibacterial Agent","authors":"Rizki Damayanti, Tamrin, Eddyanto, Z. Alfian","doi":"10.5220/0008855200960099","DOIUrl":"https://doi.org/10.5220/0008855200960099","url":null,"abstract":"This aim of this research was to determine the main compounds, physico-chemical properties and the potential of Illcium verum essential oils as antibacterial agent. Essential oil was obtained by steam distillation of dried sample method. The yield of distillation of 500 grams of Illcium verum dry sample was 1.8% with physico-chemical properties of specific gravity 0.978 gr / mL and index of refraction 1.3284. The results of volatile oil characterization using GC-MS showed that the main compounds contained were anetols (97.03%). The anti-bacterial test results for gram-positive Staphylococcus aureus (S.aureus) and negative Escherichia coli (E.coli) bacteria indicate that Illcium verum essential oil has the potential as an","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82880452","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 : 2019-01-01DOI: 10.5220/0008875902110214
Lisnawaty Simatupang, M. Situmorang, R. Siburian, B. Wirjosentono
: This research was carried out to determine the effect of glutaraldehyd croslinking on the synthesis of silica chitosan composites from the Na 2 SiO 3 precursor of volcanic ash of Sinabung and chitosan from shrimp husk by sol gel method. The synthesis of the silica-chitosan composite by mixing the 20 mL Na 2 SiO 3 precursors with (2% : 3%) (w/v) chitosan in the aid of glutaraldehyde as crosslinking agent and without glutaraldehyde. Modifications with sol gel is done because it is more simple and rapid progress as well as the binding reaction of the ligands mobilized. Prepared Silica Chitosan Composit using glutaraldehyd labeled (Si-g-ChC) and Silica Chitosan Composit without glutaraldehyd labeled (SiChC) . The characteristic of the composit material (Si-g-ChC) and (SiChC) used by FTIR and XRD.
{"title":"Effect Croslinking on Characteristics of Silica Chitosan Composite from Vulcanic Ash of Sinabung Mount and Shrimp Husk by Sol Gel Method","authors":"Lisnawaty Simatupang, M. Situmorang, R. Siburian, B. Wirjosentono","doi":"10.5220/0008875902110214","DOIUrl":"https://doi.org/10.5220/0008875902110214","url":null,"abstract":": This research was carried out to determine the effect of glutaraldehyd croslinking on the synthesis of silica chitosan composites from the Na 2 SiO 3 precursor of volcanic ash of Sinabung and chitosan from shrimp husk by sol gel method. The synthesis of the silica-chitosan composite by mixing the 20 mL Na 2 SiO 3 precursors with (2% : 3%) (w/v) chitosan in the aid of glutaraldehyde as crosslinking agent and without glutaraldehyde. Modifications with sol gel is done because it is more simple and rapid progress as well as the binding reaction of the ligands mobilized. Prepared Silica Chitosan Composit using glutaraldehyd labeled (Si-g-ChC) and Silica Chitosan Composit without glutaraldehyd labeled (SiChC) . The characteristic of the composit material (Si-g-ChC) and (SiChC) used by FTIR and XRD.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83906410","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 : 2019-01-01DOI: 10.5220/0008852800520056
S. Salim, T. Rihayat, S. Riskina, Nurhanifa Aidy, M. Razali, Ana Siti Nurmasyitah, Murni, Fitria, Y. Yunus
The Bio board is considered superior to fossil fuel plastic derived from conventional plastics in terms of energy efficiency, petroleum consumption and carbon emissions, but is inferior in its application. Any breakthrough in improving bio board manufacturing capabilities can help reduce dependence on petroleumbased polymers, plastic waste accumulation and better control of CO2 emissions in the environment. Therefore, this research investigates bio fiber based natural fiber materials to achieve non-volatile, antimicrobial, biodegradability and good mechanical strength such as hardness and impact strength. In this case, bio board characterization is also carried out through techniques such as Thermo Gravimetry Analysis and Spectrofotometry Infrared Transformation Fourier and structure morphology through Scanning Electron
{"title":"A Tensile Test of Bio-Board Made from Bamboo - Pineapple Fiber - Coconut Fiber as Nonvolatile Material","authors":"S. Salim, T. Rihayat, S. Riskina, Nurhanifa Aidy, M. Razali, Ana Siti Nurmasyitah, Murni, Fitria, Y. Yunus","doi":"10.5220/0008852800520056","DOIUrl":"https://doi.org/10.5220/0008852800520056","url":null,"abstract":"The Bio board is considered superior to fossil fuel plastic derived from conventional plastics in terms of energy efficiency, petroleum consumption and carbon emissions, but is inferior in its application. Any breakthrough in improving bio board manufacturing capabilities can help reduce dependence on petroleumbased polymers, plastic waste accumulation and better control of CO2 emissions in the environment. Therefore, this research investigates bio fiber based natural fiber materials to achieve non-volatile, antimicrobial, biodegradability and good mechanical strength such as hardness and impact strength. In this case, bio board characterization is also carried out through techniques such as Thermo Gravimetry Analysis and Spectrofotometry Infrared Transformation Fourier and structure morphology through Scanning Electron","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87299955","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 : 2019-01-01DOI: 10.5220/0008859701450151
Barita Aritonang, Tamrin, B. Wirjosentono, Eddiyanto
Modification of cyclic natural rubber with oleic acid using initiator diumil peroxide and divinilbenzene as a compositer through the melting phase in the internal mixer using the copolymer grafting method at 160 oC for 8 minutes at 80 rpm was carried out with the aim of increasing its compatibility as a paint binder. Variations in the concentration of oleic acid were used 3, 6 and 9 phr while the initiator concentrations of dicumil peroxide 0.5 phr and divinilbenzena 1.0 phr. Determination of the degree of grafting was carried out by titration method and FT-IR spectra analysis to determine the presence of oleic acid grafting in the cyclic natural rubber chain. The results showed that the process of transplanting oleic acid into the chain of cyclic natural rubber molecules with the presence of initiators dicumyl peroxide and divinylbenzene was successfully carried out marked the emergence of new absorption peaks at wave number 1705.07 cm-1 which is a typical uptake of oleic acid indicating the presence of bond vibrations C=O carbonyl group asymmetry derived from oleic acid. The maximum percentage grafting degree is 0.2630% at 9 phr oleic acid monomer concentration. The degree of grafting increases with increasing concentration of oleic acid.The transition temperature of cyclic natural rubber glass before being grafted with oleic acid is 102.86 0C but after the transplanting process using the initiator diumil peroxide and divinylbenzene the glass transition temperature (Tg) decreases to 83.98 0C this proves that the process of transplanting oleic acid into the cyclic natural rubber molecule chain has been successfully carried out with the formation of the new CNR-g-AO product.
{"title":"Modification and Characterization Natural Cycle Rubber (Resipren-35) with Oleat Acid using Dicumyl Peroxide and Divinilbenzena as Compatibility","authors":"Barita Aritonang, Tamrin, B. Wirjosentono, Eddiyanto","doi":"10.5220/0008859701450151","DOIUrl":"https://doi.org/10.5220/0008859701450151","url":null,"abstract":"Modification of cyclic natural rubber with oleic acid using initiator diumil peroxide and divinilbenzene as a compositer through the melting phase in the internal mixer using the copolymer grafting method at 160 oC for 8 minutes at 80 rpm was carried out with the aim of increasing its compatibility as a paint binder. Variations in the concentration of oleic acid were used 3, 6 and 9 phr while the initiator concentrations of dicumil peroxide 0.5 phr and divinilbenzena 1.0 phr. Determination of the degree of grafting was carried out by titration method and FT-IR spectra analysis to determine the presence of oleic acid grafting in the cyclic natural rubber chain. The results showed that the process of transplanting oleic acid into the chain of cyclic natural rubber molecules with the presence of initiators dicumyl peroxide and divinylbenzene was successfully carried out marked the emergence of new absorption peaks at wave number 1705.07 cm-1 which is a typical uptake of oleic acid indicating the presence of bond vibrations C=O carbonyl group asymmetry derived from oleic acid. The maximum percentage grafting degree is 0.2630% at 9 phr oleic acid monomer concentration. The degree of grafting increases with increasing concentration of oleic acid.The transition temperature of cyclic natural rubber glass before being grafted with oleic acid is 102.86 0C but after the transplanting process using the initiator diumil peroxide and divinylbenzene the glass transition temperature (Tg) decreases to 83.98 0C this proves that the process of transplanting oleic acid into the cyclic natural rubber molecule chain has been successfully carried out with the formation of the new CNR-g-AO product.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"140 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77720135","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 : 2019-01-01DOI: 10.5220/0008879202230228
Sabarmin Perangin-angin, Sri Wahyuni Barus
6-[(N-iodo-N-methyl-N-methyl-N-methylamino)methyl]-4-alyl-2-methoxyphenol was synthesized through Mannich and methylation reaction. Mannich reaction was carried out by reacting eugenol, formaldehyde 37%, and dimethylamine 40% with ethanol at temperature of 78°C for 90 minutes and 4-allyl-6(dimethylamino)methyl-2-methoxyphenol was obtained with yield of 83,03%. Quartenary ammonium salt, 6-[(N-iodo-N-methyl-N-methyl-N-methylamino)methyl]-4-allyl-2-methoxyphenol, was obtained through methylation reaction of 4-allyl-6-(dimethylamino)methyl-2-methoxyphenol with methyl iodide in ethanol. In the FTIR spectrum, the specific peak of ammonium salt was exhibited at 948.98 and 455.20 cm-1. The antibacterial activity of 6-[(N-iodo-N-metil-N-methyl-N-methylamino)methyl]-4-allyl-2-methoxyphenol was performed against E. coli and S. aureus, this quaternary ammonium salt exhibited a strong activity.
通过曼尼希和甲基化反应合成了6-[(n -碘- n -甲基- n -甲基- n -甲氨基)甲基]-4-烯丙基-2-甲氧基苯酚。以丁香酚、甲醛37%、二甲胺40%与乙醇在78℃下反应90 min，得到4-烯丙基-6(二甲胺)甲基-2-甲氧基苯酚，产率为83,03%。以4-烯丙基-6-(二甲氨基)甲基-2-甲氧基苯酚为原料，与碘化甲酯在乙醇中甲基化，制得6-[(n -碘- n -甲基- n -甲基- n -甲氨基)甲基]-4-烯丙基-2-甲氧基苯酚季铵盐。在FTIR光谱中，铵盐的比峰出现在948.98和455.20 cm-1处。研究了6-[(n -碘- n -甲二醇- n -甲基- n -甲氨基)甲基]-4-烯丙基-2-甲氧基苯酚对大肠杆菌和金黄色葡萄球菌的抑菌活性，表明该季铵盐具有较强的抑菌活性。
{"title":"Synthesis of Quatenary Ammonium Compounds from Eugenol through Mannich and Methylation Reactions and Its Antibacterial Activity","authors":"Sabarmin Perangin-angin, Sri Wahyuni Barus","doi":"10.5220/0008879202230228","DOIUrl":"https://doi.org/10.5220/0008879202230228","url":null,"abstract":"6-[(N-iodo-N-methyl-N-methyl-N-methylamino)methyl]-4-alyl-2-methoxyphenol was synthesized through Mannich and methylation reaction. Mannich reaction was carried out by reacting eugenol, formaldehyde 37%, and dimethylamine 40% with ethanol at temperature of 78°C for 90 minutes and 4-allyl-6(dimethylamino)methyl-2-methoxyphenol was obtained with yield of 83,03%. Quartenary ammonium salt, 6-[(N-iodo-N-methyl-N-methyl-N-methylamino)methyl]-4-allyl-2-methoxyphenol, was obtained through methylation reaction of 4-allyl-6-(dimethylamino)methyl-2-methoxyphenol with methyl iodide in ethanol. In the FTIR spectrum, the specific peak of ammonium salt was exhibited at 948.98 and 455.20 cm-1. The antibacterial activity of 6-[(N-iodo-N-metil-N-methyl-N-methylamino)methyl]-4-allyl-2-methoxyphenol was performed against E. coli and S. aureus, this quaternary ammonium salt exhibited a strong activity.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73163899","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 : 2019-01-01DOI: 10.5220/0008864601740177
T. R. Hidayani, B. Wirjosentono, D. Nasution, Tamrin
: A study concerning the separation of α - cellulose from bagasse were conducted using Okhamafe. The first stage is the preparation of bagasse powder type Bz 132. Stage second is the separation of α - cellulose from bagasse is done with the method Okhamafe done by immersion in 3.5 % HNO acid, bleaching with Sodium Hypochlorite 1.75 % and purification with 17.5 % NaOH. The third stage is the characterization of α cellulose from bagasse types Bz 132 showed visible surface with large round -shaped grains are almost the same size (uniform). This may indicate that the resulting α - cellulose has a form of homogeneous size (as large). From the analysis of functional groups with the free OH groups visible wave number 4001.50 cm-1 which shows a typical chain of cellulose CH2OH and OH hydrogen bonds with wave number 3437.30 cm-1 as supporting data. Of the thermal test with test results obtained DTA melting point at a temperature of 60oC and 320oC decomposition point.
{"title":"Characterization of α-Cellulose from Bagasse Cane Bz 132 (Saccharum officinarum)","authors":"T. R. Hidayani, B. Wirjosentono, D. Nasution, Tamrin","doi":"10.5220/0008864601740177","DOIUrl":"https://doi.org/10.5220/0008864601740177","url":null,"abstract":": A study concerning the separation of α - cellulose from bagasse were conducted using Okhamafe. The first stage is the preparation of bagasse powder type Bz 132. Stage second is the separation of α - cellulose from bagasse is done with the method Okhamafe done by immersion in 3.5 % HNO acid, bleaching with Sodium Hypochlorite 1.75 % and purification with 17.5 % NaOH. The third stage is the characterization of α cellulose from bagasse types Bz 132 showed visible surface with large round -shaped grains are almost the same size (uniform). This may indicate that the resulting α - cellulose has a form of homogeneous size (as large). From the analysis of functional groups with the free OH groups visible wave number 4001.50 cm-1 which shows a typical chain of cellulose CH2OH and OH hydrogen bonds with wave number 3437.30 cm-1 as supporting data. Of the thermal test with test results obtained DTA melting point at a temperature of 60oC and 320oC decomposition point.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"85 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76195907","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 : 2019-01-01DOI: 10.5220/0008857801300132
Dyna Grace Romatua Aruan, T. Barus, G. Haro, P. Simanjuntak
The aim of this study was to isolate and identify secondary metabolite in ethyl acetate extract of durian leaves (Durio zibethinus L.). Isolation and purification is carried out by maceration, partitioning (ethyl acetate and water), fractionation (column chromatography) and preparative Thin Latyer Chromatography (TLC). Interpretation of infrared (IR) spectra and phytochemical screening showed that the secondary metabolite is a steroid compound.
{"title":"Isolation and Identification of Secondary Metabolite Compound Extract Etil Acetate from the Leaves of Durian Durio zibethinus L.","authors":"Dyna Grace Romatua Aruan, T. Barus, G. Haro, P. Simanjuntak","doi":"10.5220/0008857801300132","DOIUrl":"https://doi.org/10.5220/0008857801300132","url":null,"abstract":"The aim of this study was to isolate and identify secondary metabolite in ethyl acetate extract of durian leaves (Durio zibethinus L.). Isolation and purification is carried out by maceration, partitioning (ethyl acetate and water), fractionation (column chromatography) and preparative Thin Latyer Chromatography (TLC). Interpretation of infrared (IR) spectra and phytochemical screening showed that the secondary metabolite is a steroid compound.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81237150","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 : 2019-01-01DOI: 10.5220/0008854200690073
J. Tarigan, M. H. Siregar
: The synthesis succinic galactomannan has been conducted through esterification reaction of galactomannan Arenga pinnata and succinic anhydride using sodium bicarbonate as catalyst under the radiation of microwave. The experiment divided by two steps which first step was the extraction of galactomannan from Arenga pinnata rendering yield of 4.20% and have confirmed by spectroscopy Fourier Transform Infrared (FT-IR). The second step was esterification with succinic anhydride using NaHCO3 as catalyst under the radiation of microwave for 3, 5, 7, 9 and 11 min. Spectroscopy FT-IR showed the stretching vibration of the carbonyl group (C=O) of the ester at a wavelength of 1735 cm-1 which established the formation of succinic galactomannan. The substitution degree of succinic galactomannan determined by titration method obtained the maximum value at 1.527 for 9 min radiation time. The scanning electron microscopy (SEM) images showed that succinic galactomannan has rough surface morphology than galactomannan Arenga pinnata .
{"title":"Synthesis Succinic Galactomannan from Galactomannan Arenga pinnata Merr. and Succinic Anhydride using Microwave Method","authors":"J. Tarigan, M. H. Siregar","doi":"10.5220/0008854200690073","DOIUrl":"https://doi.org/10.5220/0008854200690073","url":null,"abstract":": The synthesis succinic galactomannan has been conducted through esterification reaction of galactomannan Arenga pinnata and succinic anhydride using sodium bicarbonate as catalyst under the radiation of microwave. The experiment divided by two steps which first step was the extraction of galactomannan from Arenga pinnata rendering yield of 4.20% and have confirmed by spectroscopy Fourier Transform Infrared (FT-IR). The second step was esterification with succinic anhydride using NaHCO3 as catalyst under the radiation of microwave for 3, 5, 7, 9 and 11 min. Spectroscopy FT-IR showed the stretching vibration of the carbonyl group (C=O) of the ester at a wavelength of 1735 cm-1 which established the formation of succinic galactomannan. The substitution degree of succinic galactomannan determined by titration method obtained the maximum value at 1.527 for 9 min radiation time. The scanning electron microscopy (SEM) images showed that succinic galactomannan has rough surface morphology than galactomannan Arenga pinnata .","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"21 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77368471","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 : 2019-01-01DOI: 10.5220/0008857501240129
Wilza Fithri Az-zahra, N. Harahap, S. Putra, M. Z. E. Sinaga
Bioethanol gel is an alternative fuel innovation with gel form, that ease packaging and distributing process. Bioethanol gel is modified bioethanol with carbopol as the thickening agent. Based on the result of the study, bioethanol gel as alternative fuel can be produced by hydrolyzing sugar cane waste and fermented with Saccharomyces cerevisiae for 4 days, producing bioethanol gel with 95% grade. Carbopol as thickening agent was added to bioethanol from sugar cane waste, producing bioethanol gel. Best result obtained with the variation of carbopol 1,8 g and NaOH 1 mL resulted to flowing gel. Characteristics of bioethanol gel are: flare time 237 seconds, residue 0,03 g, calorific value 33.064,25 kJ/kg, and 5 g of bioethanol.
{"title":"Production of Bioethanol Gel from Sugar Cane Waste with Carbopol as Alternative Fuel","authors":"Wilza Fithri Az-zahra, N. Harahap, S. Putra, M. Z. E. Sinaga","doi":"10.5220/0008857501240129","DOIUrl":"https://doi.org/10.5220/0008857501240129","url":null,"abstract":"Bioethanol gel is an alternative fuel innovation with gel form, that ease packaging and distributing process. Bioethanol gel is modified bioethanol with carbopol as the thickening agent. Based on the result of the study, bioethanol gel as alternative fuel can be produced by hydrolyzing sugar cane waste and fermented with Saccharomyces cerevisiae for 4 days, producing bioethanol gel with 95% grade. Carbopol as thickening agent was added to bioethanol from sugar cane waste, producing bioethanol gel. Best result obtained with the variation of carbopol 1,8 g and NaOH 1 mL resulted to flowing gel. Characteristics of bioethanol gel are: flare time 237 seconds, residue 0,03 g, calorific value 33.064,25 kJ/kg, and 5 g of bioethanol.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85708631","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}
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