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Marniza Marniza

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Author-ID : 3541180

Agriculture, Biological Sciences & Forestry Computer Science & IT Industrial & Manufacturing Engineering

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PENGARUH PERLAKUAN AWAL BASA DAN HIDROLISIS ASAM TERHADAP KADAR GULA REDUKSI AMPAS TEBU [The effect of alkali pretreatment and acid hydrolysis on bagasse-reduced sugar]. Sutikno Sutikno; Marniza Marniza; Novita Sari
Jurnal Teknologi & Industri Hasil Pertanian Vol 20, No 2 (2015): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

ABSTRACTBagasse, solid waste by product of sugar cane industries, contains high lignocellulose consisting of 46.3% cellulose, 23.0% hemicellulose and 19.7% lignin. The bagasse can be converted into bioethanol after pretreating with base and acid and then fermenting with microbes. The objective of this study was to find out the effects of sodium hydroxide pretreatment and sulfuric acid hydrolysis on bagasse reduced sugar content. In this study, there were 2 treatments with 3 replications. The first treatment was submerssion bagasse into 1.0 NaOH solutions at a temperature of 121oC for 15 minutes. The second treatment was concentrations of sulphuric acid (H2SO4) that consisted of 5 levels, i.e. 0 M, 0.05 M, 0.10 M, 0.20 M, and 0.30 M. One and an half grams of dried and ground bagasse was put into 100 mL Erlenmeyer flash and then added with 30 mL 1.0 M NaOH solution. The flash was heated at a temperature of 121oC for 15 minutes. After filtering, the residue was hydrolyzed with H2SO4 solution. The residue as well as 1.5 g dried and ground bagasse without pretreating with NaOH was hydrolyzed with 15 mL H2SO4 at concentrations of 0, 0.05, 0.10, 0.20, and 0.30 M at a temperature of 121oC for 15 minutes. Filtrates of the solutions were taken to analyze their reduced sugar content. Reduced sugar content of the bagasse samples ranged from 0.05 to 4.20 mg/100 mL. The highest reduced sugar content (4.20 ml/mL) was yielded when bagasse was directly, hydrolyzed with 0.05 M H2SO4 at a temperature of 121oC for 15 minutes.Keywords : Bagasse, bioethanol, lignocellulose, sulphuric acid, reducing sugar

PENGARUH PERLAKUAN AWAL BASA DAN ASAM TERHADAP KADAR GULA REDUKSI TANDAN KOSONGKELAPA SAWIT [The effect of alkali and acid pretreatment on reduced sugar of empty palm fruit bunches] Sutikno Sutikno; Marniza Marniza; Meri Fitri Yanti
Jurnal Teknologi & Industri Hasil Pertanian Vol 20, No 1 (2015): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

The objective of this research was to obtain the best treatment on empty palm fruit bunch (EPFB) to produce reduced sugar. Two treatments were applied on the EPFB. The first treatment was EPFB submersion into 0 M and 0.50 M NaOH solution at a temperature of121oC for 15minutes and the second treatment was sulfuricacid concentration. After drying and grinding, 1.5 g EPFB was put into 100 mL Erlemeyer flash, added with 30 mL 1.0 M NaOH solution, and then heated at a temperature of 121oC for 15 minutes. The solution was filtered and the residue was hydrolyzed with H2SO4 solution. The residue as well as 1.5 g EPFB without treating with NaOH was hydrolyzed with 15 mL H2SO4 at concentrations of 0, 0.05, 0.10, 0.20, and 0.30 M at a temperature of 121oC for 15 minutes. After filtering the solution, the EPFB were analyzed to determine their reduced sugar contents. Reduced sugar contents of the EPFB ranged from 0.07 to 8.36 mg/100 mL. The best treatment in this research was submersion EPFB samples in 1.0 M NaOH solution and then hydrolysis with 0.05 M H2SO4 at a temperature of 121oC for 15 minutes. The treatment resulted in 8.36 mg reduced sugar /100mL. Keywords: Empty Palm Fruit Bunches, reduced sugar, lignocelluloses, sulfuric acid, NaOH

PENGARUH KONSENTRASI ENZIM SELULASE, α–AMILASE DAN GLUKOAMILASE TERHADAP KADAR GULA REDUKSI DARI ONGGOK (Effects Of Cellulase, α–Amylase, and Glucoamylase Enzyme Concentrations On Reduced Sugar From Solid Cassava Waste) Sutikno Sutikno; Marniza Marniza; Nanti Musita
Jurnal Teknologi & Industri Hasil Pertanian Vol 21, No 1 (2016): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Solid cassava waste, by product of tapioca industries, contains fiber and starch which can be used as raw materials of bioethanol production. Both fiber and starch of the cassava solid waste are able to be enzymatically hydrolyzed into reduced sugar. The fiber is hydrolyzed with cellulase and the starch is hydrolyzed with α–amylase and glucoamylase. Objectives of this research were to find out cellulase, α–amylase, and glucoamylase concentrations yielding the highest concentration of reduced sugar. To achieve the objectives, the fiber of the cassava solid waste was hydrolyzed with 5, 10, 15, 20, and 25 FPU cellulase enzyme at 40oC, pH 4,8, and 200 rpm for 20 minutes. The cassava solid waste, which has been hydrolyzed with the best concentration of cellulase enzyme, was then hydrolyzed with 0,58; 1,15; and 1,37 µl α-amylase and 1,1 µl enzyme glucoamylase/g the cassava waste dry weight. The result showed that the best cellulase concentration was 25 FPU and yileded 32,19 mg reduced sugar / 100 mL. A combination of 1,15 µL α-amylase dan 1,10 µL glucoamylase/g the cassava waste dry weight was the best concentration of the enzymes and yielded 62,21 mg reduced sugar/100mL. Key words : cellulase, α-amylase, glucoamylase, cassava solid waste.

PENGARUH KONSENTRASI GLISEROL DAN TAPIOKA TERHADAP KARAKTERISTIK BIODEGRADABLE FILM BERBASIS AMPAS RUMPUT LAUT Eucheuma cottonii [The effects of glycerol and tapioca concentration on the characteristics of Eucheuma cottonii seaweed dreg-based biodegradabl Zulferiyenni Zulferiyenni; Marniza Marniza; Erli Novida Sari
Jurnal Teknologi & Industri Hasil Pertanian Vol 19, No 3 (2014): Jurnal Teknologi Industri & Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

This research was aimed to find the appropriate combination of glycerol and tapioca concentration in the production of Eucheuma cottonii seaweed dreg-based biodegradable films. A two factors experiment was arranged in a Complete Randomized Design with three replications. The first factor was three levels of glycerol concentration : 0.25%; 0.5% and 0.75%. The second factor was three levels of tapioca concentration: 5%; 6% and 7%. The data of visual observation, Fourier transform infra red analysis, biodegradability and water vapor permeability were analyzed descriptively. The tensile strength, elongation and solubility of biodegradable films were analyzed using by ANOVA. The homogenity was use barlett test and the aditivity was use Tukey test. The data were continue by HSD test at 5% level of significant. The concentration of glycerol and tapioca significant effects on tensile strength and percent elongation, but not on solubility. The best characteristics of the Eucheuma cottonii seaweed dreg-based biodegradable film was produced from a combination of 0.25% of glycerol and 7% of tapioca concentration. The best biodegradabe film had characteristic of an f 53.92 MPa tensile strength, an 3.647 % elongation, 86.17% solubility, 14 day biodegradability, 6.13 g/(m2/day) water vapor permeability . The addition of glycerol and tapioca concentration in producting of Eucheuma cottonii seaweed dreg-based biodegradable film has caused the film characteristics more plastic and homogeneous. Keywords: Biodegradable film, Fourier transform infra red, percent elongation, seaweed dreg, tensile strength, water vapor permeability

Co-Authors Erli Novida Sari Meri Fitri Yanti Nanti Musita Novita Sari Sutikno Sutikno Zulferiyenni, Zulferiyenni

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