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All Journal Jurnal Ilmu Pertanian Indonesia EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Charity : Jurnal Pengabdian Masyarakat
Ade Heri Mulyati
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Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Electrical & Electronics Engineering Environmental Science Mathematics Social Sciences

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EVALUASI KINERJA METHYL DIETHANOL AMINE (MDEA) DALAM PENYERAPAN KANDUNGAN H2S PADA PROSES PENGOLAHAN GAS ALAM . Sutanto; Ade Heri Mulyati; . Hermanto
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 20, No 1 (2020): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v20i1.1986

Abstract

Drilling natural gas contains water vapor (H2O) and contaminant gases such as CO2 and H2S which must be removed because it reduced the calorie value of the product. H2S gas is also corrosive, easily damaging equipment so that it increased maintenance costs. The process of removing CO2 and H2S gas uses MDEA (methyl diethanolamine). This study aims to determine the optimal concentration and flow rate of absorbent methyl diethanolamine (MDEA) to absorb H2S in the plant I gas flow in Energy Equity Epic (Sengkang) Pty.Ltd. The study was carried out with a steady MDEA mix absorbent flow rate (50% pure amine and 50% demineralization water) fixed at 13 US Gallons per minute flowing continuously at the upper absorber inlet, sour gas flow rate, at the bottom of the absorber inlet with variations in the flow gas namely 7,9,11,13,15,17 MMSCFD and is contacted with amine solution counter-current. Purified natural gas (sweet gas) produced from the top absorber column outlet with an H2S content below 10 ppm. The results showed that the greater the flow rate of gas inlet, the greater the acid gas absorbed. The  amount  of gas  entering and  exiting gas follows the  equation        y = 0.003 x - 2.2537. The ability of the amine solution to absorb H2S follows the logarithmic equation y = 0.167 ln (x) + 101.02 with a value of R = 0.9857, y is H2S absorbed by the amine solution and x is the H2S rate.
SUBSTITUSI TEPUNG TERIGU DENGAN TEPUNG AMPAS KEDELAI PADA PRODUK COOKIES YANG KAYA AKAN SERAT PANGAN DAN PROTEIN Novy Nur Adhimah; Ade Heri Mulyati; Diana Widiastuti
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 17, No 1 (2017): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v17i1.811

Abstract

Soybean waste is one of the alternative sources of fiber which is a by-product in the manufacture of tofu and contains high crude protein. Fiber and protein are given in the form of soybean pulp with variation of 0-40%. This study aims to determine the addition of maximal soybean pulp that provides the properties of cookies that can be accepted by the public and to know the physical properties, microbiology, chemistry including food fiber. The best soybean dregs flour is without washing, steaming. Soybean flour without washing, steaming has 11.65% water content, 3.15% ash, 18.37% protein, 1.25% total food fiber, 0.94% insoluble food fiber, 0 soluble food fiber, 31%, lead 0.04 ppm, cadmium 0.005 ppm, and zinc 20.80ppm, total plate counts (ALT) of 2 x 102 kol / gram, E.coli 3 AMP / gram, / gram. Cookies C5 with the ratio of soybean flour and wheat flour (40%: 60%) are selected products, physical characteristics of soybean cookies include color parameters, aroma, crispness and flavor. The result of analysis of nutrient content of cookies obtained by water content 2,22%, ash 2.20%, protein 7.2%, total food fiber (TDF) 0.85%, insoluble food fiber (IDF) 0,51, soluble (SDF) 0.33%, zinc 25.60 ppm, lead 0.04 ppm, cadmium 0.005 ppm Total total plate count (ALT) of 25 x 10-1 cab / gram, E.coli 3 AMP / gram, mold 10 kol / gram. Key words : Food Disversivication, Soybeans, Cookies, Proteins, Food Fiber
KUALITAS MINYAK GORENG CURAH YANG BERADA DI PASAR TRADISIONAL DI DAERAH JABOTABEK PADA BERBAGAI PENYIMPANAN Eva Yulia; ade Heri Mulyati; Farida Nuraeni
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 17, No 2 (2017): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v17i2.765

Abstract

Handling of bulk cooking oil is not good, cause a decrease in the quality of cooking oil when in storage in the selling process. Wrapping packaging of bulk cooking oil that is not appropriate and direct interaction with the sun and microbes can change the quality of cooking oil. Besides the fabrication of bulk cooking oil, to make people uneasy. For it is necessary for the analysis of bulk cooking oil quality on a variety of storage (closed and open) in the traditional markets in in Jabotabek Area through the physical trials and chemical tests. Analysis physics for odor and color is done organoleptic. Chemical analysis of water content using gravimetric method. Determined acid number by titration of alkalimetri with NaOH. Peroxide number determined with Tio 0.02 N. For example pelicans oil test alcohol 5N KOH.Based on this research, to test the physics of odor obtained normal results for sealed storage and smelling a bit stale at week 4 and to 5 in the open storage, while the average for the color of pale yellow oil, yellow, until golden brown. To test the chemical in terms of water content and acid number in the average closed storage meets the requirements of ISO - 3741 - 2002, while the open storage of the average moisture content does not meet the requirements for the number of acid still meet the quality standards II. The results of the analysis of peroxide numbers in a closed storage on average to meet the requirements of ISO - 3741 - 1995, while the open storage do not meet the standards. To test the oil did not reveal any falsification pelicans. Keywords : analysis, cooking oil, gravimetry, alkalimetry titration
VALIDASI METODE ANALISIS KADAR AMBROKSOL HIDROKLORIDA DALAM SEDIAAN TABLET CYSTELIS® SECARA KROMATOGRAFI CAIR KINERJA TINGGI Ade Heri Mulyati; - Sutanto; Dewi Apriyani
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 11, No 2 (2011): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v11i2.259

Abstract

Cystelis® tablet is an expectorant medicine which contain 30 mg/tablet of Ambroxol Hydrochloride. To ensure the safety and effectiveness of the medicine must be well controlled especially the analytical methode which used to determined the actived ingredient in the medicine. This analytical methode must resulting the amount of Ambroxol Hydrochloride which can be trusted. The purpose of this research are to test and proof the result of determination Ambroxol Hydrochloride in Cystelis® tablet could be trusted in daily test in laboratorium. Analytical methode  validation is a effort to get and documented proof that the result of test methode can be trusted with some specification. The Parameters of analytical methode validation are precision,  linearity, accuracy, range, selectivity, and stability test (robustness). Analytical methode that used in pharmacy specially High Performance Liquid Chromatography (HPLC), using mobile phase metanol : buffer potassium dyhidrogen phosphate 0,01 M (70:30) pH 6,0 and stationary phase C18 Symmetry (150 mm x 4,6 mm) with particle size 5mm, flow rate 1,0 mL/minute, injection volume 10,0 mL and measured at wavelength 247 nm. Analytical results showed that the placebo did not gived any analytical respons in selectivity test. Accuracy which know as  % recovery showed the average of % recovery 99,31% (98,70 – 100,44%), range between 80%-120%. Linearity at consentration range 70% - 130% with coefficient correlacy (r)  0,99924. The result of precision which is repeatability with average of % RSD 0,25%.  Based on t value and F value on intermediate precision showed that there is no differently result gived by the analytical methode with different analyst and time. Stability test solution and mobile phase composition with % bias £ ± 2% and %RSD £ 2%. Based on the analytical methode validation result the determination of Ambroxol Hydrochloride in Cystelis® tablet with high performace liquid chromatography we can conclude that this analytical methode is valid to implemented in daily inspection at Quality Control laboratory PT. Armoxindo Farma Kata kunci : Validation, Analytical methode, Ambroxol Hydrochloride, HPLC
PEMANFAATAN LIMBAH BUNGA JANTAN KLUWIH SEBAGAI LARVASIDA NYAMUK Aedes Aegypti Ade Heri Mulyati; Diana Widiastuti; Putry Sri Ratih
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 14, No 2 (2014): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v14i2.213

Abstract

The breadfruit tree Artocarpus altilis species is a species that is often used fruit as a food source , while the stems and roots of this plant can be used as a medicinal plant. Around the area of Sukabumi, west Java people use the bread fruit tree flowers as a insect repellent. The purpose of this study is to determine the potential of breadfruit tree stamens extracts as larvicides against Aedes aegypti mosquito larvae and determine the optimum concentration of extract of stamens breadfruit tree which can be used effectively as Aedes aegypti mosquito larvicides. Determine larvicidal activity of stamens breadfruit tree (Artocarpus altilis) includes : sample preparation and phytochemical test , sextraction , larvicidal test , toxicity testing and data processing . Comparison test was done to compared the activity of the male flower extracts as larvicides with breadfruit tree abate powder against mosquito larvae , as well as the toxicity of the statistical test using the LC50.Phytochemical test results positive breadfruit tree botanicals stamens contain tannins , saponins , and triterpenoids . Water content in the crude drug obtained 12.04 % . Breadfruit tree extract of stamens is not harmful to humans . This study getting the LC50 of 0.25 % at phase n - butanol extract , and 1 % in the water phase extract. Key words : Waste, Breadfruit,  Aedes aegypti, Artocarpus altilis
PERBANDINGAN KONSENTRASI HIDROKOLOID DAN KONSENTRASI ASAM SITRAT DALAM MINUMAN JELI SUSU SESUAI MUTU DAN KUALITAS Ade Heri Mulyati; Farida Nuraeni; Dini Restu Dwiyana
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 12, No 2 (2012): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v12i2.243

Abstract

In the manufacture of jelly milk drinks are necessary also other additional ingredients such as sugar is used as a sweetener in the manufacture of jelly while working to ease hydrocolloid dispersion. Potassium citrate is used for auxiliary materials, especially the formation of gel texture carrageenan, citric acid is used as a substance other than flavor in soft drinks, used also as an inhibitor of microbial growth in milk jelly drinks.An analysis of milk jelly beverage products, including the organoleptic analysis of where the testing is done against the panelists to determine the level of liking for the product. Viscosity to determine the viscosity of the product before the final product, the analysis is conducted to determine the strength of the gel on which the final product gel strength will be measured by looking at the gel fracture when pressed with a certain weight. PH measurement is necessary to know the level of acidity flavor obtained from addition of citric acid and then measuring ° brix to see the level of sweetness of the product because of sweetener used is pure sugar. In this study the analysis of protein levels because the products contain milk which is produced by converting nitrogen compounds into ammonium sulfate and then elaborated by NaOH, whereas the liberated ammonia was tied with H3BO4 and then titrated with HCl Key words: Gels, hydrocolloid, sugar, potassium citrate, citric acid, organoleptic,  viscosity, gel strength, pH, ° brix, protein levels
Co-Authors - Sutanto . Hermanto . Sutanto Dewi Apriyani Diana Widiastuti Dini Restu Dwiyana Dwi Febriantini Eka Herlina Eva Yulia Farida Nuraeni Muthia Septiani Novy Nur Adhimah Putry Sri Ratih Siti Warmasih Sutanto _