Journal of Bioprocess, Chemical and Environmental Engineering Science最新文献_第2页

Produksi Bioetanol Generasi Kedua dari Pelepah Kelapa Sawit dengan Variasi Pretreatment H2SO4 dan Waktu Fermentasi 从油棕中提取的第二代生物乙醇，其成分有H2SO4和发酵时间的变化

Journal of Bioprocess, Chemical and Environmental Engineering Science Pub Date : 2020-02-06 DOI: 10.31258/jbchees.1.2.1-16

Idral Amri, Adrianto Ahmad, Rahmah Nabilah

{"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}

引用次数: 0

Modification of Sago Starch-Based Bioplastic Using Citric Acid with Variation Plasticizers Glycerol and Sorbitol: Properties and Biodegradability Studies 柠檬酸与变型增塑剂甘油和山梨醇改性西米淀粉基生物塑料:性能和生物降解性研究

Journal of Bioprocess, Chemical and Environmental Engineering Science Pub Date : 2020-02-06 DOI: 10.31258/jbchees.1.1.39-46

Ojsadmin, Trisuciati Syahwardini, Cindy Oktaviani, Vivi Novriyani, Said Zul Amraini, Bahruddin

{"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}

引用次数: 1

Pengaruh Pretreatment pada Fermentasi Bioetanol Generasi Kedua dari Serat Buah Kelapa Sawit 制毒对第二代棕榈油纤维生物乙醇发酵的影响

Journal of Bioprocess, Chemical and Environmental Engineering Science Pub Date : 2020-02-06 DOI: 10.31258/jbchees.1.1.28-38

Ojsadmin, Adrianto Ahmad, Idral Amri, Wida Sri Wani

{"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}

引用次数: 0

Netralisasi Limbah Cair Industri Tahu Menggunakan Metoda Elektrokoagulasi dengan Elektroda Al-Al dengan Variabel Waktu Proses dan Ketebalan Plat 中和废水工业知道使用电凝方法与电极电凝与处理时间变量和厚度

Journal of Bioprocess, Chemical and Environmental Engineering Science Pub Date : 2020-02-06 DOI: 10.31258/jbchees.1.1.6-11

Idral Amri, Ihda Nurjanah, Irdoni

{"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}

引用次数: 0