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All Journal Jurnal Bahan Alam Terbarukan Jurnal technoscientia Jurnal Teknologi Dharma Bakti JURNAL TEKNOLOGI TECHNOSCIENTIA Inovasi Jurnal Pengabdian Masyarakat (IJPM)
Murni Yuniwati, Murni
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Journal : JURNAL TEKNOLOGI TECHNOSCIENTIA

 1 
OPTIMASI KONDISI PROSES EKSTRAKSI MINYAK BIJI PEPAYA Yuniwati, Murni; Purwanti, Ani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscentia Vol 1 No 1 Agustus 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v1i1.382

Abstract

The papaya (Carica papaya L.) is a member of the small class dycotyledoneae, family caricaceae, and genus cariaca. This plant is native to the Central America and West Indies. It grows well at the tropical region with elevation 600-700 m above the sea level. Today papaya seed is only throwed away as a waste product, whereas in fact the papaya seed contains fatty acids with higher economic value which is called papaya oil. Oil of papaya seed can be obtained from solid - liquid extraction method. In this investiga-tion, the extraction of papaya seed was carried out in the stirred reactor with ethanol as a solvent. Solvent-extracted oil was distilled to separate papaya seed oil from solvent. The variables of investigation were extraction temperature, stirring speed, ratio between sol-vent volume and mass of papaya seed, and size of papaya seed. The extracted oil was a-nalyzed by using gas chromatography to determine the fatty acid composition. The opti-mum condition of papaya seed extraction were obtained at extraction temperature 300C, stirring speed 397 rpm, ratio between solvent volume and mass of papaya seed at 25 : 1, and size of papaya seed (-14/+20) mesh or average diameter 0.08 cm. The correlation between mass transfer coefficient and these variables is shown in the dimensionless e-quation below : Sh = 8,89 (10)5 Re(0,7785). Sc 0,9411.With the average error is 0.9706%.
PRODUKSI MINYAK BIJI KAPUK DALAM USAHA PEMAN FAATAN BIJI KAPUK SEBAGAI SUMBER MINYAK NABATI Yuniwati, Murni
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 4 No 2 Februari 2012
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v4i2.516

Abstract

Kapok tree (Ceiba pentandra) is a member of small class Malvales, family Malvaceae. The plant is native to the shout America, Central of America and Caribia. It grow well at the tropical region. In fact the kapok seed contains fatty acid with higher economic value which is called kapok oil. Oil of kapok seed can be obtained from solid-liquid extraction methode. In this investigation, the extraction of kapok seed was carried out in the stirred tank with ethanol as a solvent. Extract was distilled to separate kapok seed oil from solvent. The variable of investigation were extraction temperature , stirring speed, ratio between solvent volume and mass of kapok seed , and size of kapok seed. Tthe extracted oil was analyzed by using gas chromatography to determine the fatty acid composition. The optimum condition of kapok seed extraction were obtained at boiling point of ethanol ± 78 oC, stirring speed 400 rpm, ratio between solvent volum and mass of kapok seed is 16mL: 1gr, and size of kapok seed (-30 / 40 ) mesh or average diameter 0,065 cm. The corelation between mass transfer coefficient and these variables is shown in the dimensionless equation below : Sh = 0,132 Re(0,5004). Sc 0,651. with the average error 0,95 %
PEMBUATAN SERBUK PEWARNA ALAMI TEKSTIL DARI EKSTRAK DAUN JATI (TECTONA GRANDIS LINN. F.) Yuniwati, Murni; Andaka, Ganjar; Dofianti, Hanyfa; Prawitasari, Harnanda
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 1 Agustus 2019
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v12i1.1810

Abstract

Anthocyanin is a dye that plays a role in providing a brownish red color that has the potential to become a natural dye for food and can be used as an alternative substitute for coloring dyes that are safer for health. Textile dyes are divided into two, namely natural dyes and synthesis dyes. Natural dyes come from animals and plants while synthetic dyes can be produced from chemicals Anthocyanins are widely found in plants with striking colors, one of which is teak leaves. Teak leaves are one part of the teak tree which can be used as a source of natural dyes for textiles by extracting the leaves. This research was conducted to obtain color powder from extracts of dyes from fresh teak leaves using the foam-mat drying method. This study was prepared to study the effect of citric acid addition on color intensity and the addition of chicken egg white to moisture content and solubility of color powder of teak leaf extract. To achieve this goal, in this study used fresh teak leaves with 95% ethanol solvent mass. At the beginning of the process, 25 grams of teak leaves are mashed first, then put into a beaker glass and macerated using a 95% ethanol mass of 250 ml and added 10 ml of citric acid from the amount of solvent with a concentration varied for 24 hours. After that filtered, the filter was taken. Powder making was carried out by foam-mat drying method using chicken egg white as foaming and maltodextrin as filler. The filtrate was added with 8% b/v maltodextrin and chicken egg white with the concentration varied stirred in the mixer until homogeneous. Then the oven is dried at a temperature of 60oC until a constant weight is reached. Using 25 grams of fresh teak leaves, 95% ethanol solvent as much as 250 ml, and 8% b/v maltodextrin obtained optimal conditions at 5% b/v egg white concentration and 30% b/v citric acid concentration, with these conditions obtained the powder results with a moisture content of 8% mass, solubility of 99.22% b/v with a reddish level of 16,625, a brightness level of 43,495, and a yellowish level of 5,925. It is hoped that this research can be used as a reference for the development of further research on anthocyanin dye powder which will then be developed as a raw material for dyes for the chemical industry, and textile industry.
Co-Authors Ani Purwanti Bintang, Friska Bintang, Friska Dedu, Maria Oktafiana Dhamayanti, Katherina Irene Dofianti, Hanyfa Emy Setyaningsih Ganjar Andaka Hary Wibowo, Hary Jihanto, M. Vinda Nur Kusmartono, Bambang Kusmartono, Bambang Listiyanto, Ziko Niko Halpito, Fauzi Wahyu Prawitasari, Harnanda Purnomo, Sekar Chairunnisa Seran, Vianney Laura Tanadi, Kelvin Taufiq Taufiq Toto Rusianto wahyu Sheilma