Vintreswari, Cornelia Nandya (2020) Pengaruh Konsentrasi NaOH Dan Waktu Pretreatment Menggunakan Microwave Terhadap Kandungan Lignin, Selulosa Dan Hemiselulosa pada Sabut Kelapa (Cocos nucifera). Sarjana thesis, Universitas Brawijaya.
Abstract
Bahan baku yang digunakan pada penelitian ini yaitu sabut kelapa. Proses awal penelitian ini dilakukan pretreatment fisik pada bahan dengan cara memanaskan sabut kelapa hingga kering menggunakan try dryer suhu 70oC, kemudian dilakukan penggilingan pada bahan hingga halus dan diayakan menggunakan ayakan sebesar 100 mesh. Bubuk sabut kelapa hasil ayakan ditambahkan NaOH dengan variasi konsentrasi sebesar 1 M, 2 M dan 3 M. Penambahan bahan dengan NaOH dihomogenkan serta dipanaskan menggunakan microwave dengan daya sebesar 600 watt selama 10 menit, 15 menit dan 20 menit. Langkah selanjutnya dilakukan bleaching dengan H2O2 sebesar 3 M lalu dimasukkan ke dalam waterbath suhu 85°C. Variasi NaOH dan waktu pemanasan dilakukan pengulangan sebanyak tiga kali, sehingga metode yang digunakan dalam penelitian ini adalah Rancang Acak Lengkap (RAL). Hemiselulosa pada sabut kelapa dapat dikonversi menjadi gula alkohol. Gula alkohol yang dimanfaatkan ini biasanya dalam bentuk sorbitol, manitol dan xilitol dengan bantuan katalis. Tujuan penelitian ini untuk mengetahui pengaruh variasi konsentrasi NaOH dan variasi lama waktu pemanasan terhadap degradasi kandungan lignoselulosa pada proses pretreatment sabut kelapa dan untuk mengetahui hasil rendemen lignoselulosa pada proses pretreatment sabut kelapa menggunakan microwave. Hipotesis awal dari penelitian ini yaitu diduga penambahan bahan dengan konsentrasi NaOH dan lama pemanasan menggunakan microwave berpengaruh terhadap degradasi kandungan lignin serta meningkatkan kandungan hemiselulosa dan selulosa pada sabut kelapa (Cocos nucifera). Selain itu proses bleaching dengan penambahan H2O2 dengan konsentrasi 3 M diduga dapat meningkatkan hasil hemiselulosa pada sabut kelapa yang sudah dilakukan proses pretreatment.
English Abstract
The raw material used in this research is coconut fiber. The initial process of this research carried out a physical pretreatment on the material by heating the coconut husk to dry using a try dryer at 70oC, then milling the material until smooth and celebrated using a sieve of 100 mesh. Coconut coir sieve powder added NaOH with a concentration variation of 1 M, 2 M and 3 M. The addition of ingredients with NaOH is homogenized and heated using a microwave with a power of 600 watts for 10 minutes, 15 minutes and 20 minutes. The next step was bleaching with H2O2 of 3 M and then put into a water temperature 85°C. NaOH variation and heating time were repeated three times, so the method used in this study was a Completely Randomized Design (CRD). Hemicellulose in coconut fiber can be converted to alcohol sugar. The used alcohol sugar is usually in the form of sorbitol, mannitol and xylitol with the help of a catalyst. The purpose of this study was to determine the effect of variations in NaOH concentration and variations in the length of heating time on the degradation of lignocellulose content in the pretreatment process of coconut coir and to determine the yield of lignocellulose yield in the coco fiber pretreatment process using microwave. The initial hypothesis of this research is that it is suspected that the addition of material with NaOH concentration and the duration of microwave heating influence the degradation of lignin content and increase the content of hemicellulose and cellulose in coconut coir (Cocos nucifera). In addition, the bleaching process with the addition of H2O2 with a concentration of 3 M is thought to increase the results of hemicellulose on coconut coir which has been carried out pretreatment. In the coconut husk pretreatment process the temperature is 70oC dried and ground to 100 mesh size then added NaOH solvent with variations of 1 M, 2 M and 3 M. The instrument used to heat the pretreatment process is a microwave using a power of 600 watts with a variation of time during 10 minutes; 15 minutes and 20 minutes. The next step was bleaching with H2O2 of 3 M and entered in a 85°C water temperature variation of NaOH and the heating time was repeated three times, so the method used in this study was a Completely Randomized Design (CRD). Hemicellulose in coconut fiber can be converted to alcohol sugar. The used alcohol sugar is usually in the form of sorbitol, mannitol and xylitol with the help of a catalyst. The purpose of this study was to determine the effect of variations in NaOH concentration and variations in the length of heating time on the degradation of lignocellulose content in the pretreatment process of coconut coir and to determine the yield of lignocellulose yield in the coco fiber pretreatment process using microwave. The initial hypothesis of this research is that it is suspected that the addition of material with NaOH concentration and the duration of microwave heating influence the degradation of lignin content and increase the content of hemicellulose and cellulose in coconut coir (Cocos nucifera). In addition, the bleaching process with the addition of H2O2 with a concentration of 3 M is thought to be able to increase the results of hemicellulose on coconut coir which has been carried out pretreatment process.
Other obstract
-
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FTP/2020/51/052003596 |
| Uncontrolled Keywords: | Hidrogen Peroksida, Natrium Hidroksida, Pretreatment, Sabut Kelapa, Coconut Fiber, Hydrogen Peroxide, Pretreatment, Sodium Hydroxide |
| Subjects: | 600 Technology (Applied sciences) > 664 Food technology > 664.07 Tests, analyses, quality controls |
| Divisions: | Fakultas Teknologi Pertanian > Keteknikan Pertanian |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 10 Aug 2020 06:37 |
| Last Modified: | 11 Oct 2024 03:02 |
| URI: | http://repository.ub.ac.id/id/eprint/181282 |
![[thumbnail of Cornelia Nandya Vintreswari (2).pdf]](http://repository.ub.ac.id/style/images/fileicons/text.png) |
Text
Cornelia Nandya Vintreswari (2).pdf Download (3MB) |
Actions (login required)
 |
View Item |