Pub Date : 2020-02-06DOI: 10.31258/jbchees.1.2.1-16
Idral Amri, Adrianto Ahmad, Rahmah Nabilah
Indonesia merupakan negara produsen dan eksportir kelapa sawit terbesar di dunia. Seiring semakin luasnya lahan perkebunan sawit, maka semakin banyak industri pengolahan sawit yang mengakibatkan jumlah limbah yang dihasilkan juga besar. Indonesia menghasilkan limbah kelapa sawit sebesar 66.750 juta pelepah atau sekitar 300 juta ton/tahun. Dengan melimpahnya pelepah kelapa sawit dapat dimanfaatkan sebagai sumber energi alternatif terbaru yaitu bioetanol. Tujuan penelitian ini yaitu mensintesis bioetanol dari pelepah sawit, menentukan pengaruh konsentrasi H2SO4 pada proses hidrolisis dan menentukan waktu optimum produksi bioetanol dari bahan baku pelepah kelapa dengan metode separate hydrolysis and fermentation (SHF). Tahapan penelitian ini yaitu pretreatment basa menggunakan larutan KOH yang diperoleh dari ekstrak abu Tandan Kosong Sawit, selanjutnya proses pretreatment oksidatif menggunakan larutan H2O2 3%. Kemudian proses hidrolisis dengan variasi H2SO4 yaitu 1,5 M, 2 M, dan 2,5 M selama 3 jam pada suhu 100oC dan dilanjutkan dengan proses fermentasi untuk menghasilkan bioetanol dengan waktu fermentasi yaitu 24 jam, 48 jam, 72 jam, 96 jam, dan 120 jam . Hasil penelitian menunjukkan bahwa pada proses hidrolisis dihasilkan konsentrasi gula maksimum sebesar 161,98 gr/L. Konsentrasi terbaik H2SO4 pada penelitan ini yaitu 2 M dan waktu fermentasi terbaik 96 jam dengan kadar bioetanol yang diperoleh sebesar 7% atau 55,25 g/L. Kata kunci : bioetanol, fermentasi, hidrolisis, pelepah kelapa sawit, saccharomyces cerevisiae
{"title":"Produksi Bioetanol Generasi Kedua dari Pelepah Kelapa Sawit dengan Variasi Pretreatment H2SO4 dan Waktu Fermentasi","authors":"Idral Amri, Adrianto Ahmad, Rahmah Nabilah","doi":"10.31258/jbchees.1.2.1-16","DOIUrl":"https://doi.org/10.31258/jbchees.1.2.1-16","url":null,"abstract":"Indonesia merupakan negara produsen dan eksportir kelapa sawit terbesar di dunia. Seiring semakin luasnya lahan perkebunan sawit, maka semakin banyak industri pengolahan sawit yang mengakibatkan jumlah limbah yang dihasilkan juga besar. Indonesia menghasilkan limbah kelapa sawit sebesar 66.750 juta pelepah atau sekitar 300 juta ton/tahun. Dengan melimpahnya pelepah kelapa sawit dapat dimanfaatkan sebagai sumber energi alternatif terbaru yaitu bioetanol. Tujuan penelitian ini yaitu mensintesis bioetanol dari pelepah sawit, menentukan pengaruh konsentrasi H2SO4 pada proses hidrolisis dan menentukan waktu optimum produksi bioetanol dari bahan baku pelepah kelapa dengan metode separate hydrolysis and fermentation (SHF). Tahapan penelitian ini yaitu pretreatment basa menggunakan larutan KOH yang diperoleh dari ekstrak abu Tandan Kosong Sawit, selanjutnya proses pretreatment oksidatif menggunakan larutan H2O2 3%. Kemudian proses hidrolisis dengan variasi H2SO4 yaitu 1,5 M, 2 M, dan 2,5 M selama 3 jam pada suhu 100oC dan dilanjutkan dengan proses fermentasi untuk menghasilkan bioetanol dengan waktu fermentasi yaitu 24 jam, 48 jam, 72 jam, 96 jam, dan 120 jam . Hasil penelitian menunjukkan bahwa pada proses hidrolisis dihasilkan konsentrasi gula maksimum sebesar 161,98 gr/L. Konsentrasi terbaik H2SO4 pada penelitan ini yaitu 2 M dan waktu fermentasi terbaik 96 jam dengan kadar bioetanol yang diperoleh sebesar 7% atau 55,25 g/L. \u0000Kata kunci : bioetanol, fermentasi, hidrolisis, pelepah kelapa sawit, saccharomyces cerevisiae","PeriodicalId":104683,"journal":{"name":"Journal of Bioprocess, Chemical and Environmental Engineering Science","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132217613","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}
Bioplastic or biodegradable plastic is one of alternative replacement to conventional plastic that has the potential to harmful to the environment. One of the raw material that has the potential to be made into bioplastic is sago starch because it has ability to degraded. The general purpose of this research is to determine the characteristics of sago-based bioplastic by modified the citric acid, microcrystalline cellulose filler, plasticizer sorbitol and glycerol. The synthesis method is casting of starch, water, filler Micro Cristalline Cellulose (MCC) with varying plasticizer sorbitol and glycerol with composition of filler is (15-25 % w/w), composition of plasticizer (25– 35 % w/w), and composition citric acid (3-9 % w/w). The results showed that the treatment with the addition of MCC fillers, plasticizers, and citric acid are contributed to the mechanical properties produced. In the best process conditions (20% w/w MCC filler, plasticizer sorbitol 30% w/w with citric acid 0.95% w/w) give result Tensile strength 15.84 MPa, Elongation 9.32%, Young's Modulus 171.2 MPa, Biodegradation 51.65%, and wavelength absorption 1722.51 cm-1
{"title":"Modification of Sago Starch-Based Bioplastic Using Citric Acid with Variation Plasticizers Glycerol and Sorbitol: Properties and Biodegradability Studies","authors":"Ojsadmin, Trisuciati Syahwardini, Cindy Oktaviani, Vivi Novriyani, Said Zul Amraini, Bahruddin","doi":"10.31258/jbchees.1.1.39-46","DOIUrl":"https://doi.org/10.31258/jbchees.1.1.39-46","url":null,"abstract":"Bioplastic or biodegradable plastic is one of alternative replacement to conventional plastic that has the potential to harmful to the environment. One of the raw material that has the potential to be made into bioplastic is sago starch because it has ability to degraded. The general purpose of this research is to determine the characteristics of sago-based bioplastic by modified the citric acid, microcrystalline cellulose filler, plasticizer sorbitol and glycerol. The synthesis method is casting of starch, water, filler Micro Cristalline Cellulose (MCC) with varying plasticizer sorbitol and glycerol with composition of filler is (15-25 % w/w), composition of plasticizer (25– \u000035 % w/w), and composition citric acid (3-9 % w/w). The results showed that the treatment with the addition of \u0000MCC fillers, plasticizers, and citric acid are contributed to the mechanical properties produced. In the best process conditions (20% w/w MCC filler, plasticizer sorbitol 30% w/w with citric acid 0.95% w/w) give result Tensile strength 15.84 MPa, Elongation 9.32%, Young's Modulus 171.2 MPa, Biodegradation 51.65%, and wavelength absorption 1722.51 cm-1","PeriodicalId":104683,"journal":{"name":"Journal of Bioprocess, Chemical and Environmental Engineering Science","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131419239","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 : 2020-02-06DOI: 10.31258/jbchees.1.1.28-38
Ojsadmin, Adrianto Ahmad, Idral Amri, Wida Sri Wani
Indonesia is a country with a growing human population, causing the need of energy also increases. Bioethanol has been widely used in transportation as a fuel that is increasingly reduced. Palm fruit fiber has a high enough potential to be developed into an alternative energy source, namely bioethanol because of its high lignocellulosic content. The purpose of this study was to determine the composition of sulfuric acid in the hydrolysis process, determine the initial sugar composition of the bioethanol produced, and determine the optimal processing time for the formation of bioethanol in the Hydrolysis and Separate Fermentation (SHF) method. The stages in this study were the hydrolysis of palm fruit fiber using H2SO4 with variations of 1M, 2M, and 3M for 3 hours at 100 oC. The fermentation process is carried out with variations in time for 24 hours, 48 hours, 72 hours, 96 hours and 120 hours. The results showed that in the hydrolysis process the optimum H2SO4 concentration of 3M produced a sugar concentration of 87.83 gr/L. The fermentation process obtained an optimal fermentation time of 96 hours with a bioethanol concentration of 31.57 g / L. The greater the initial concentration and the longer time fermentation, the more bioethanol is obtained at optimal times.
印度尼西亚是一个人口不断增长的国家，导致对能源的需求也在增加。生物乙醇作为一种日益减少的燃料被广泛应用于交通运输。棕榈果纤维由于其高的木质纤维素含量，有足够的潜力发展成为一种替代能源，即生物乙醇。本研究的目的是确定水解过程中硫酸的组成，确定所产生的生物乙醇的初始糖组成，并确定水解和分离发酵(SHF)法形成生物乙醇的最佳加工时间。本研究的阶段是在100℃下，用1M、2M和3M的H2SO4水解棕榈果纤维3小时。发酵过程按时间进行，分别为24小时、48小时、72小时、96小时和120小时。结果表明，在3M水解过程中，H2SO4的最佳浓度为87.83 gr/L。发酵过程中获得的最佳发酵时间为96 h，生物乙醇浓度为31.57 g / l，初始浓度越大，发酵时间越长，最佳发酵时间下获得的生物乙醇越多。
{"title":"Pengaruh Pretreatment pada Fermentasi Bioetanol Generasi Kedua dari Serat Buah Kelapa Sawit","authors":"Ojsadmin, Adrianto Ahmad, Idral Amri, Wida Sri Wani","doi":"10.31258/jbchees.1.1.28-38","DOIUrl":"https://doi.org/10.31258/jbchees.1.1.28-38","url":null,"abstract":"Indonesia is a country with a growing human population, causing the need of energy also increases. Bioethanol has been widely used in transportation as a fuel that is increasingly reduced. Palm fruit fiber has a high enough potential to be developed into an alternative energy source, namely bioethanol because of its high lignocellulosic content. The purpose of this study was to determine the composition of sulfuric acid in the hydrolysis process, determine the initial sugar composition of the bioethanol produced, and determine the optimal processing time for the formation of bioethanol in the Hydrolysis and Separate Fermentation (SHF) method. The stages in this study were the hydrolysis of palm fruit fiber using H2SO4 with variations of 1M, 2M, and 3M for 3 hours at 100 oC. The fermentation process is carried out with variations in time for 24 hours, 48 hours, 72 hours, 96 hours and 120 hours. The results showed that in the hydrolysis process the optimum H2SO4 concentration of 3M produced a sugar concentration of 87.83 gr/L. The fermentation process obtained an optimal fermentation time of 96 hours with a bioethanol concentration of 31.57 g / L. The greater the initial concentration and the longer time fermentation, the more bioethanol is obtained at optimal times.","PeriodicalId":104683,"journal":{"name":"Journal of Bioprocess, Chemical and Environmental Engineering Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124908657","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 : 2020-02-06DOI: 10.31258/jbchees.1.1.6-11
Idral Amri, Ihda Nurjanah, Irdoni
The tofu factory located in Pangkalan Kerinci, Pelalawan District, produces 1 m3 of liquid waste every day and are immediately disposed of without going throught the processing before release to environment. The analysis shows that the liquid waste is not in accordance with Permen LH No. 5 2014. This will deerease the oxygen level in the water. The purpose of this study was to determine reduce levels of TSS, BOD and pH with plate thicknes and prosesing time. Neutralization of liquid waste of tofu industry. The electrocoagulation method was used to reduce BOD, TSS and neutralize pH by varying the time, plate thickness. The conclusions obtained are: (1) Time variation (20, 40 and 60 minutes), and effective time is 60 minutes, current strength of 0.6 A decreases 72% BOD concentration, TSS 69.9% and pH becomes 6.01. (2) Variation in plate thickness (0.5; 1.0 and 1.5 mm), and effective plate thickness of 1 mm at 60 minutes can reduce BOD concentration 73.14%, TSS 68.78%, pH becomes 6.83. The results of the research obtained are in accordance with Permen LH No.5 of 2014.
{"title":"Netralisasi Limbah Cair Industri Tahu Menggunakan Metoda Elektrokoagulasi dengan Elektroda Al-Al dengan Variabel Waktu Proses dan Ketebalan Plat","authors":"Idral Amri, Ihda Nurjanah, Irdoni","doi":"10.31258/jbchees.1.1.6-11","DOIUrl":"https://doi.org/10.31258/jbchees.1.1.6-11","url":null,"abstract":"The tofu factory located in Pangkalan Kerinci, Pelalawan District, produces 1 m3 of liquid waste every day and are immediately disposed of without going throught the processing before release to environment. The analysis shows that the liquid waste is not in accordance with Permen LH No. 5 2014. This will deerease the oxygen level in the water. The purpose of this study was to determine reduce levels of TSS, BOD and pH with plate thicknes and prosesing time. Neutralization of liquid waste of tofu industry. The electrocoagulation method was used to reduce BOD, TSS and neutralize pH by varying the time, plate thickness. The conclusions obtained are: (1) Time variation (20, 40 and 60 minutes), and effective time is 60 minutes, current strength of 0.6 A decreases 72% BOD concentration, TSS 69.9% and pH becomes 6.01. (2) Variation in plate thickness (0.5; 1.0 and 1.5 mm), and effective plate thickness of 1 mm at 60 minutes can reduce BOD concentration 73.14%, TSS 68.78%, pH becomes 6.83. The results of the research obtained are in accordance with Permen LH No.5 of 2014.","PeriodicalId":104683,"journal":{"name":"Journal of Bioprocess, Chemical and Environmental Engineering Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134442579","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：