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Supraptiah, Endang
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Journal : kinetika

 1 
MAKING TEXTILE DYES FROM EXTRACT WATER PLANTS (Impatiens Balsamina L) WITH ADDITION GAMBIR AS STABILIZER Supraptiah, Endang
KINETIKA Vol. 8 No. 3 (2017): KINETIKA 01112017
Publisher : Politeknik Negeri Sriwijaya

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Abstract

The use of dyes from natural materials have long been used, but with the discovery of synthetic dyes are relatively easily produced and have better stability, natural dyes began to be abandoned. But it turns out the use of synthetic dyes have a negative impact on the environment and human health. One of the natural resources that have the potential for henna plant dye is water. Henna plant parts water can be used as natural dyes are the leaves that allegedly contain anthocyanins. To concentrate the dye obtained use of additives of gambier. This study aimed to study the effect of the solvent, the stability of the natural dyes to the effects of environmental conditions, and absorption of natural dyes produced in the coloring of textile materials. The solvents used are ethanol + water, ethanol and acetone. The results showed that the natural dye textiles manufacture of henna leaves water (Impatiens balsamina Linn) at the highest dye produced by ethanol. Value% yield produced by ethanol is 37.3788%.
PENGARUH RASIO CAIRAN PEMASAK (AA CHARGE) PADA PROSES PEMBUATAN PULP DARI KAYU SENGON (ALBIZIA FALCATARIA) TERHADAP KUALITAS PULP Supraptiah, Endang; Ningsih, Aisyah Suci; ., Sofiah
KINETIKA Vol. 5 No. 2 (2014): KINETIKA 01112014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Sengon wood (Albizia falcataria) is chosen as an alternative raw material for the manufacture of pulp has physical and chemical characteristic that meet the standards of raw material for pulp. The most important factors that influence the process of the kraft pulping is the ratio of the cooking liquid (AA charge) which serves to degrade and dissolve so easy to separate lignin from cellulose, while still protecting carbohydrates from degradation so that the resulting yield and good physical strengt. The study began with the preparation of raw materials, cooking by using a variable charge AA 14%, 16%, 18%, 20% and 22%, pulp washing and sheet formation, as well as the analysis of the quality of the pulp. Cooking liquid ratio will affect the yield and quality of pulp, including kappa number, viscosity and brightness. The low use of cooking liquid causes the higher lignin content in pulp and produce wood that is not mature, so the higher the yield, kappa number and viscosity, but lower brightness. While conversely, the higher the cooking liquid use causes more fiber degraded.
PENYERAPAN LOGAM Pb DENGAN MENGGUNAKAN KARBON AKTIF DARI CANGKANG KEMIRI SEBAGAI ADSORBEN Supraptiah, Endang; Ningsih, Aisyah Suci; ., Fatria
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Candlenut shell is a waste which usually burned, stacked or discarded,which are unfavorable to environment. This is condition be motivated to produced commercial product from this candlenut shells waste as activated carbon and aswell as solving as environment problems.This study aimed is to obtain the optimum conditions of hydrochloric acid activator to quality activated carbon and Pb metal adsorption capacity. This activated carbon has two variation process there are carbonization process used temperature 500oC for 1 hour and the activation process with variation concentration of hydrochloric acid there are 0,2M, 0,4M, 0,6M, 0,8M and 1M for 24 hours. The product of this research isshowing the best quality activated carbon from candlenut shells which has best characteristic or fit to SNI 06-3730-95 such as to Inherent Moisture rate 8,54-10,56%, ash content 1,10-2,48%, volatile matter 17,57-20,63% and fixed carbon 67,81-71,42%. The application of activated carbon from candlenut shell can reduce the Pb metal concentration from 3 ppm to 0 ppm with activator concentration 0,4M for contact time of 1 hour with adsorption content is 100% and adsorption capacity of activated carbon from candlenut shell using hydrochloric acid as adsorbent Pb metal is 0,15 mg/g.
OPTIMASI TEMPERATUR DAN WAKTU PENGERINGAN MI KERING YANG BERBAHAN BAKU TEPUNG JAGUNG DAN TEPUNG TERIGU Supraptiah, Endang
KINETIKA Vol. 10 No. 2 (2019): KINETIKA 01072019
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Dried noodles is one of favorite food in Indonesia because it’s simple and easy to cook. The use of corn flour as substitute for making noodles is an effort to diversify food in reducing the import of wheat flour. The objective of this study was to determine the optimum drying conditions to obtain the best quallity of dried noodles, with ratio composition of corn flour and wheat flour 2:3. This study used completely randomized design with temperature and time drying. Drying was conducted using a tray dryer at various temperature (60, 70, and 80oC) and various time drying (60, 70, 80 and 90 minutes). The observed quality parameters were water content, ash content and protein content. The result showed that the optimum drying condition is 80oC and 90 minutes long with water content 6,87%, ash content 1,78%, and protein content 19,39% and the result of the coefisient of drying rate (k) is 0,1218
Co-Authors ., Fatria ., Sofiah Amalda, Feby Nia Daniar, Rima Gemala Cahya Ibnu Hajar Ibnu Hajar Idha Silviyati LUKMAN, LUKMAN Niati, Sri Murda Ningsih, Aisyah Suci Purnama Sari, Keti Sri Murda Niati Syakdani, Adi Zurohaina, Zurohaina