DEWI MULYANI, 123020331 and Hervelly, DS and Yusep Ikrawan, DS (2016) KAJIAN SUHU KRISTALISASI DAN KONSENTRASI ETANOL PADA KRISTALISASI MOLASE YANG DIJERNIHKAN. Skripsi(S1) thesis, Fakultas Teknik Unpas.
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Abstract
Sugar cane as raw material for sugar industry is one of plantation commodities that have a strategic role in Indonesian economy. Production sugar from sugar cane produces a byproduct in the form of molasses. Molasses still contains monosaccharides such as glucose and fructose. However, it is unfortunate because sugar contain in molasses make sugar production in Indonesia relatively low. One of benefits to be derived from molasses is to re-produce crystalline sugar from molasses to minimize production cost of crystalline monosaccharides. Crystal produced through anti-solvent crystallization technology. Data analysis conducted by linear regression, while the factor used is variation of ethanol concentration, that are 75%, 85%, and 95% and crystallization temperature are 10oC, 15oC and 20oC. Response in this study are crystal mass produced, melting point, water content, fructose content, glucose content and sucrose content. The results showed that molasses 10% (b/v) as raw materials has total dissolved solids 11.9oBrix, 10.43% monosaccharide, 23.3% disaccharide and lightness value from colorimetric L* 24,47. Ethanol concentration correlated with crystals mass, melting point and water content. The higher ethanol concentration produced more crystals mass, while the melting and crystallization water content decrease. Crytallization temperature correlated with crystal mass and crystal melting point. The lower temperature the more crystals mass produced and decreases melting point. Crystals produced from antisolven crystallization at 10°C using 75% ethanol contains 27.29% glucose and 79.80% sucrose, using 95% ethanol contains 7.79% fructose, 44.40% glucose and 45.00% sucrose and using 85% ethanol contain 21.72% fructose, 2.30% glucose and 79.89% sucrose. Keywords:molasse, fructose, antisolvent, crystallization
| Item Type: | Thesis (Skripsi(S1)) |
|---|---|
| Subjects: | S1-Skripsi |
| Divisions: | Fakultas Teknik > Teknik Pangan 2016 |
| Depositing User: | Irwan Kustiawan |
| Date Deposited: | 08 Sep 2016 20:15 |
| Last Modified: | 08 Sep 2016 22:16 |
| URI: | http://repository.unpas.ac.id/id/eprint/11826 |
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