Penggunaan katalis homogen dan heterogen pada proses hidrolisis pati umbi singkong karet menjadi glukosa

Praputri, Erti; Sundari, Elmi; Firdaus, Feris; Sofyan, Sofyan

doi:10.24960/jli.v8i2.4189.105-110

Cited by 5 publications

(8 citation statements)

References 3 publications

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“…Residu halus hasil proses perlakuan awal dimasukkan ke dalam botol schoot dan ditambahkan larutan asam sulfat (H2SO4) 1:50 (b/v) dengan variasi konsentrasi 0,15 N; 0,30 N; dan 0,45 N. Selanjutnya, larutan dipanaskan pada temperatur 120 o C selama 60 menit menggunakan oven. Filtrat yang terbentuk disaring dengan kertas saring dan dilakukan pengujian kadar glukosa menggunakan metode Luff-Schoorl [11].…”

Section: Proses Hidrolisisunclassified

“…Campuran didinginkan dengan air mengalir dan ditambahkan 25 mL asam sulfat (H2SO4) 25% dan 15 mL larutan kalium iodida (KI) 20% secara perlahan. Larutan dititrasi dengan natrium tiosulfat (Na2S2O3) 0,1 N hingga berwarna kuning muda, lalu larutan tersebut ditambahkan indikator amilum 1%, sehingga larutan berwarna biru tua dan proses titrasi dilanjutkan hingga warna biru tua hilang [11]. Kadar glukosa dapat dihitung menggunakan Persamaan (1) dan Persamaan (2).…”

Section: Pengukuran Kadar Glukosaunclassified

“…Pada proses hidrolisis, residu pati hasil proses perlakuan awal ditambahkan dengan larutan asam pada temperatur 120 o C agar proses hidrolisis dapat terjadi [11]. Filtrat yang dihasilkan pada proses hidrolisis kemudian diukur kadar glukosanya.…”

Section: Pengaruh Konsentrasi Asam Sulfat (H2so4) Pada Proses Hidroli...unclassified

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Pengaruh Perlakuan Awal terhadap Karakteristik Bioetanol dari Limbah Kulit Singkong Karet (Manihot glaziovii)

Yuniarti,

Satria,

Wiandini

et al. 2024

J. Teknik Kimia

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Rubber cassava peel waste (Manihot glaziovii) has a high carbohydrate content, so it is feasible to convert it into bioethanol. In general, bioethanol production consists of four steps, pretreatment, hydrolysis, fermentation, and purification. The purpose of this study was to determine the suitable treatment for obtaining bioethanol with the finest characteristics from rubber cassava peel using three treatment variations, the pretreatment process with variations in the dissolving ratio of sodium hydroxide (NaOH) 0.5 M of 1:10; 1:12.5; and 1:15 (w/v), the hydrolysis process with various concentrations of sulfuric acid (H2SO4) of 0.15 N; 0.30 N; and 0.45 N, and the fermentation process with variations in the fermentation time for 3 days, 7 days, and 9 days. Based on the research results, the highest glucose content was 0.91%, with variations in dissolving NaOH 0.5 M 1:15 (w/v) in the pretreatment process and variations in the concentration of 0.30 N H2SO4 in the hydrolysis process, while the highest ethanol content was 68.05% at a fermentation time of 7 days.

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Section: Proses Hidrolisisunclassified

Section: Pengukuran Kadar Glukosaunclassified

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Pengaruh Perlakuan Awal terhadap Karakteristik Bioetanol dari Limbah Kulit Singkong Karet (Manihot glaziovii)

Yuniarti,

Satria,

Wiandini

et al. 2024

J. Teknik Kimia

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“…Menurut (Praputri, E., & Sundari, 2019) konsentrasi katalis merupakan variabel yang berpengaruh dalam peningkatan kadar glukosa. Konsentrasi Asam HClO 4 dengan konsentrasi 0,20 N menghasilkan kadar glukosa paling tinggi dengan nilai 47% pada proses hidrolisis dengan temperatur 120ºC selama 45 menit.…”

Section: Pendahuluanunclassified

Hidrolisis Pati Kacang Kedelai (Glycine max (L.) Merril) dengan Pengaruh Jenis Katalis Asam

Nasution,

Lubis,

Harahap

et al. 2023

jharma

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Soybean (Glycine max (L.) Merril) is beneficial for lowering blood sugar, relieving menopausal symptoms and preventing dementia. This study aims to determine the effect of the acid catalyst used on the hydrolysis process of soybean starch (Glycine max (L.) Merril) and to determine the effect of time on the process of hydrolysis process of soybean starch (Glycine max (L.) Merril). There are 3 types of acid catalysts used, namely 0.1 N HCl; H2SO4 0.1N; HNO3 0.1 N. Types of qualitative and quantitative research conducted in the pharmaceutical laboratory of the Institut Teknologi dan Kesehatan Sumatera Utara. The results obtained in this study with 0.1 N HCl acid catalyst type for 4 minutes, 5 minutes, 6 minutes, and 7 minutes obtained successive volumes of 15 mL, 21 mL, 18 mL, and 9 mL. 0.1 N H2SO4 catalyst for 4 minutes, 5 minutes, 6 minutes, and 7 minutes, the volumes obtained were 22 mL, 20 mL, 17 mL, and 14 mL, respectively. 0.1 N HNO3 catalyst for 4 minutes, 5 minutes, 6 minutes, and 7 minutes, the volumes obtained were 24 mL, 20 mL, 17 mL, and 13 mL, respectively. From the research results, we can find out the optimal volume produced in 7 minutes with 0.1 N HCl acid catalyst. The longer the time used for hydrolysis process in soybean starch (Glycine max (L.) Merril), the smaller the average volume produced.

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“…The development of marine resources owned by Indonesia has great and promising potential. The development of Indonesia's marine cultivation land is 80,929 ha with a beach area of 46,734,300 tons/year [8]. However, only about a quarter of seaweed cultivation can be used as industrial raw materials and processed products.…”

Section: Introductionmentioning

confidence: 99%

Microwave Assisted Hydrolysis Ulva sp. Using HCl for the Production of Bioethanol Raw Materials

et al. 2022

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The challenges faced by the Indonesian state are increasing greenhouse gases, climate change, and depleting fossil fuel reserves. This requires the exploration of alternative energy that is environmentally friendly and sustainable. Algae biomass, especially Ulva sp. is one of the resources that have the potential for bioethanol production as an alternative energy producer. The purpose of this study is to determine the potential of Ulva sp. as raw material for bioethanol and to determine the effect of particle size, solvent concentration, and power on the hydrolysis process. This study used Ulva sp. as raw material. hydrolyzed with HCl solvent using the microwave assisted hydrolysis method. Hydrolysis with HCl concentrations of 0.1 N, 1 N, 2 N, variations of microwave power 150 watts, 300 watts, 450 watts, and particle sizes of 60 mesh, 80 mesh, and 100 mesh. Measurement of reducing sugar levels was carried out using the dinitro salicylic acid (DNS) method. The results showed that the best conditions for hydrolysis were when the HCl concentration was 0.1 N, the microwave power was 450 watts, and the particle size was 80 mesh which resulted in a reducing sugar content of 20.751 mg/mL.

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Penggunaan katalis homogen dan heterogen pada proses hidrolisis pati umbi singkong karet menjadi glukosa

Abstract: Penggunaan katalis homogen dan heterogen pada proses hidrolisis pati umbi singkong karet menjadi glukosa The use of homogeneous and heterogeneous catalysts in hydrolysis process of rubber cassava starch into glucose

Cited by 5 publications

References 3 publications

Pengaruh Perlakuan Awal terhadap Karakteristik Bioetanol dari Limbah Kulit Singkong Karet (Manihot glaziovii)

Pengaruh Perlakuan Awal terhadap Karakteristik Bioetanol dari Limbah Kulit Singkong Karet (Manihot glaziovii)

Hidrolisis Pati Kacang Kedelai (Glycine max (L.) Merril) dengan Pengaruh Jenis Katalis Asam

Microwave Assisted Hydrolysis Ulva sp. Using HCl for the Production of Bioethanol Raw Materials

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