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All Journal Research Report - Engineering Science Seminar Nasional Teknik Kimia Kejuangan Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Muara Ilmu Ekonomi dan Bisnis JURNAL PSYCHOMUTIARA
Andy Chandra
Jurusan Teknik Kimia, Fakultas Teknologi Industri Universitas Katolik Parahyangan
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Environmental Science Social Sciences

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Journal : Seminar Nasional Teknik Kimia Kejuangan

 1 
Pengaruh Variasi Ukuran Daun Stevia dan Perbandingan Umpan pada Karakterisasi Produk Gula Cair Stevia Jessica Jessica; Andy Chandra; Ign. Suharto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Sweetener is one of the food ingredients that consumed the most by humans. Sweeteners are classified into artificial and natural sweeteners. The excessive consumption of artificial sweeteners could lead into many diseases, such as obesity, cancer, etc. Moreover, the consumption of sweeteners increases significantly, but the sweeteners production in Indonesia still couldn’t balance the populations’ demand. Stevia contains glycosides which are up to 450 times sweeter than sucrose, but with low calories. The purpose of this research is to determine the effect of feed to solvent ratio (F:S) and Stevia leaves’ size variation to the extract’s concentration. This research was carried out using solid extraction method with an agitated tank. Stevia leaves were extracted with aquadest as the solvent at 60°C for 2 hours with feed to solvent ratio variations (1:100, 1:150, and 1:200) and leaves’ sizes variations (without mesh, -20+30 mesh, -40+60 mesh). The extracts then were analyzed using colorimeter and turbidimeter to determine the extracts’ concentrations, and also organoleptic testing. The results showed a tendency. From F:S=1:100, 1:150, and 1:200, the higher F:S, the lower the extract’s concentration obtained. On the other hand, the smaller the Stevia leaves, then the higher the extract’s concentration obtained.
Separasi Steviosida dan Rebaudiosida A dari Crude Glikosida Daun SteviaRebaudiana Bertoni Menggunakan Resin Makropori Eko Indra Permana; Judy Retti Witono; Andy Chandra
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Sugar consumption in Indonesia always increase every year. The increase of sugar demand cannot be fulfilled by the increase of sugar production. Low calories and low prices make food industry attracted to artificial sweeteners. The consumption of artificial sweeteners in excessive amount can lead to health problem. Stevia sweeteners can be used as the solution. The content of stevioside and rebaudioside A in stevia leaf make stevia sweeteners have a sweet taste, low calories and classified as safe. The purpose of this research is to determine the effect of stevia leaves type, separation method using resin, and dilution of stevia extract to separation rate (in %) of stevioside and rebaudioside A. Leaves types used in this research are stevia leaf cultivated in Unpar (leaf A) which is dried with microwave and leaf cultivated in Central Java (leaf B) which is dried with sunlight. Mass of Stevia leaves used is 10 grams. Separation methods that used are batch and continuous. Dilution of stevia’s extract used are 0, 5, 10, 25, and 50 times. Analysis performed in this research are total sugar analysis using anthrone method, analysis of stevioside and rebaudioside A content using HPLC, turbidity analysis using turbiditimeter, color analysis using colorimeter, and gravimetry analysis. The results showed that leaf A with batch method and 50 times dilution give the highest separation rate.
Co-Authors Anastasia Prima K Andika Pramudita Eko Indra Permana Hie Maria Inggrid Ign Suharto Ign. Suharto Jessica Jessica Judy Retti B Witono Judy Retti Witono Livia Budyanto Widjaja Novalia Novalia Rizal, Reyhan Achmad Susanto, Mario Verawati Verawati Y.I.P. Arry Miryanti