Produksi Tablet Kosmetika Herbal Buah Tembesu Untuk Perawatan Kulit dan Wajah

Buah Tembesu (Fragraea fragrans) memiliki metabolit sekunder asam ursolat, asam oleanolat, dan alkaloid gentianin. Senyawa metabolit sekunder ini telah diteliti dan dapat dimanfaatkan sebagai antiinflamasi, antikanker, antibakterial, antiaging, antifungal, antiviral, antialergik. Senyawa flavonoid juga teridentifikasi pada buah ini yang dapat digunakan sebagai antioksidan dan peredam radikal bebas penahan ageing; dan tanin trimer sebagai antikerut (antiwrinkle). Produk kosmetika herbal dari buah Tembesu telah diuji dan memberikan manfaat bagi peningkatan kesehatan kulit dan wajah. Warga di Desa Limbang Jaya II memiliki pemukiman yang kaya akan pohon Tembesu. Kegiatan pengabdian berupa penyuluhan dan pelatihan pembuatan kosmetika alam akan memberikan nilai lebih bagi hasil alam di desa tersebut. Produk kosmetika ini lebih disukai oleh remaja milenial saat ini karena tidak saja halal tetapi juga berkhasiat untuk perawatan tanpa ada efek samping karena hanya mengandung bahan alami

Kinetika Reaksi Oksidasi Asam Miristat, Stearat, dan Oleat dalam Medium Minyak Kelapa, Minyak Kelapa Sawit, Serta tanpa Medium

Kinetika reaksi oksidasi asam miristat, asam oleat dan asam stearat dalam medium minyak kelapa dan kelapa sawit telah dipelajari dengan mengukur pengurangan luas kromatogram asam lemak dengan kromatografi gas. Hasil penelitian menunjukan bahwa reaksi oksidasi asam miristat, asam oleat dan asam stearat mengikuti reaksi orde-1. Hasil penentuan energi aktivasi menunjukkan bahwa energi aktivasi asam oleat lebih kecil dibanding asam miristat dan asam stearat dalam minyak kelapa , minyak kelapa sawit maupun tanpa medium. Dari hasil tersebut menunjukkan bahwa asam oleat lebih cepat teroksidasi dibanding asam stearat dan asam miristat

Studi Biodegradasi Blend PVC-Minyak Nabati Epoksi sebagai Salah Satu Upaya Mengurangi Pencemaran Lingkungan oleh Limbah Plastik

Polivinil klorida(PVC) merupakan salah satu bahan plastic yang yang banyak digunakan sebagai pengemas makanan, tetapi sulit terdegradasi. Pada penelitian ini dilakukan pencampuran polivinil klorida dengan minyak biji karet epoksi untuk mendapatkan plastic yang dapat terbiodegradasi. Komposisi poliblend yang dibuat adalah 35% berat minyak biji karet epoksi.Proses biodegradasi dilakukan dengan menggunakan bakteri Staphylococus aureus selama 30 hari. Pengamatan terhadap poliblend setelah proses biodegradasi yaitu terlihat adanya bintik-bintik coklat. Hasil analisa dengan SEM menunjukkan adanya kerusakan pada permukaan poliblend setelah proses biodegradasi. Hasil penentuan temperature leleh dan berat molekul rerata viskosistas polivinil klorida menurun setelah biodegradasi

BIODEGRADATION OF POLYBLEND POLYPROPILENE- PALM OIL-AMYLUM BY <i>Bacillus subtilus</i> AND <i>Clostridium botulinum</i>

It had been done a biodegradation polyblend from blending polypropilene-palm oil-amylum with three composition of polyblend i.e polyblend A 80% polypropilene- 19.5% palm oil- 0.5% amylum, poliblend B 80% polypropilene- 19% palm oil- 1% amylum and polyblend C 80% polypropilene-18% palm oil- 2% amylum by B. subtilus and C. botulinum, time incubation was twenty five days. The characterization of polyblend before and after biodegradation has done with FTIR, DTA, Viscometre and tensile strength of polyblend. The result showed that Bacillus subtilus and Clostridium botulinum can biodegradate polyblend and make holes as well as chink on polyblend especially polyblend C, because it has more carbohidrat than polyblend A and B. Analysis from FTIR showed compatible of poliblend because it did not have a new function group and did not change of wavelength. Data of tensile strength showed lower value after biodegradation at polyblend C and from DTA and Viscometre showed lower melting point and lower average molecule weight, respectively.   Keywords: Biodegradation, Polyblend, Bacillus, Clostridiu

Pyrolysis of Puspa Wood Sawdust and Sugarcane Bagasse into Biochar

Puspa wood sawdust and sugarcane bagasse are abundantly available but have low carbon content and nutrients. The carbon content and nutrients could be increased by converting biomass into biochar through pyrolysis. The independent variables of pyrolysis were essential to investigate because those inherently influence biochar quality. In this study, the effect of pyrolysis temperature (300, 350, 400, 450, and 500 ˚C) and time (30, 60, 90 mins) on the biochar characteristic such as pH, yield, and proximate compositions were determined. The total nitrogen, P2O5, and K2O content at optimum condition biochar were also investigated. The data analysis showed that the pyrolysis temperature and time increment positively correlated to the pH, ash content, and carbon content. At the same time, the yield and volatile matter were vice versa. Both biochar's optimum pyrolysis temperature and time were achieved at 500 and 90 minutes. The carbon content and nutrient of biochar were also increased compared to the biomass. The pyrolysis method has enhanced biomass quality, and the biochar may be used as a growing media and soil amendment. It can be concluded that the sugarcane bagasse biochar was more likely favorable than puspa wood sawdust biochar due to its higher fixed carbon and nutrient conten

Biodegradation Of Polyblend Polypropilene- Palm Oil-Amylum By Bacillus subtilus And Clostridium botulinum = Biodegradasi Poliblend Polipropilen- Minyak sawit-Pati dengan Bakteri Bacillus Subtilus dan Clostridium...

ABSTRACT It had been done a biodegradation polyblend from blending polypropilene-palm oil-amylum with three composition of polyblend i.e polyblend A 80% polypropilene- 19.5% palm oil- 0.5% amylum, poliblend B 80% polypropilene- 19% palm oil- 1% amylum and polyblend C 80% polypropilene-18% palm oil- 2% amylum by B. subtilus and C. botulinum, time incubation was twenty five days. The characterization of polyblend before and after biodegradation has done with FTIR, DTA, Viscometre and tensile strength of polyblend. The result showed that Bacillus subtilus and Clostridium botulinum can biodegradate polyblend and make holes as well as chink on polyblend especially polyblend C, because it has more carbohidrat than polyblend A and B. Analysis from FTIR showed compatible of poliblend because it did not have a new function group and did not change of wavelength. Data of tensile strength showed lower value after biodegradation at polyblend C and from DTA and Viscometre showed lower melting point and lower average molecule weight, respectively. Keywords: Biodegradation, Polyblend, Bacillus, Clostridiu

The Olefin Reaction between Crude Palm Oil Fatty Acid Methyl Ester (CPO FAME) and Ethylene Using Grubbs II Catalyst

AbstractRenewable materials derived from vegetable oils are now widely developed for obtaining green polymers. One of the applications of those polymers is in the field of Enhanced Oil Recovery (EOR) where the polymers are put in the injection wells to increase water viscosity resulting in higher efficiency of oil production. Indonesia is very rich in crude palm oil and therefore, it was chosen as the starting material for polymer synthesis. The objective of this work is to prepare the monomer first, by doing the olefin metathesis reaction between crude palm oil FAME (fatty acid methyl ester) and ethylene. The reaction was carried out using a Grubbs II catalyst in order to obtain methyl 9-decenoate which is used later as the monomer for EOR application. The resulting product was characterized using Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FTIR) spectroscopy as well as Gas Chromatography Mass Spectrometry (GC-MS). Based on the functional group analysis, it was found that methyl 9-decenoate has successfully been synthesized

Effect of Silica Addition on Mechanical Properties of Eggshell-Derived Hydroxyapatite

Eggshell is a solid waste that is available in abundance but is being left unused. Eggshell containing calcium in a high amount. Calcium can be used as a precursor for hydroxyapatite (HAp). Modification of HAp with SiO2 is expected to improve its low mechanical properties for biomedical applications. In this study, HAp is synthesized from the eggshell. Then, it was modified by adding SiO2 utilizing the coprecipitation method with concentrations of 10%, 20%, 30%, and 40%, respectively. The HAp and HAp/SiO2 were characterized using; X-ray diffraction and Fourier transform infrared spectroscopy. The analysis HAp and HAp/SiO2 were density, compressive strength, and hardness. The best mechanical properties of HAp/SiO2 were characterized using SEM-EDS. The HAp were prepared successfully with a ratio of Ca/P was 1.673, close to the theoretical 1.67. The addition of SiO2 caused a decrease in crystallite size and density but increased compressive strength and hardness. The best mechanical properties of HAp/SiO2 were obtained with SiO2 of 30% and 40% with similar values

Pengaruh Lumpur Bekas Pemboran Sumur Minyak terhadap Pencemaran Lingkungan

Lumpur bor yang dipakai dalam pemboran sumur minyak dan gas bumi berfungsi mengangkat lapisan di bawah tanah (cutting). Adanya kandungan logam berat dalam lumpur bor dapat berbahaya terhadap lingkungan. Pada penelitian ini dicoba untuk mengetahui sejauh mana kadar logam berat yang terdapat dalam lumpur baru maupun lumpur bekas menunjukkan adanya kandungan logam berat. Sedangkan terhadap lumpur bekas yang diperlakukan dengan air pada kondisi pH 4,6,7 dan 8 memperlihatkan adanya logam berat yang larut (leachate), dimana konsentrasi logam yang larut meningkat dengan menurunkan pH dari air leaching. Konsentrasi logam berat dalam lumpur bekas pada kondisi pH tersebut melebihi batas maksimum standar mutu air buangan

Adsorpsi Zat Warna Auramine dalam Limbah Pencelupan Jumputan dengan Batang Pisang Gedah

Telah dilakukan penelitian menggunakan serbuk pelepah batang pisang sebagai penyerap zat warna auramine. Pada penelitian ini dilakukan variasi waktu kontak, berat serbuk batang pisang, konsentrasi dan pH larutan auramine, serta kondisi optimum yang diperoleh akan diaplikasikan dalam menyerap zat warna auramine dalam limbah pencelupan kain tenun. Pengukuran konsentrasi auramine pada semua perlakuan ditentukan dengan spektronik 20 D. Hasil penelitian menunjukkan kondisi optimum penyerapan auramine oleh serbuk batang pisang yang diberi penambahan NaOH terjadi pada waktu kontak 60 menit, berat serbuk 0,05 gram, konsentrasi 25 ppm dan pH 7 dengan efisiensi penyerapan maksimum 89,6969% sedangkan untuk serbuk batang pisang yang tidak diberi perlakuan waktu kontak 80 menit, berat serbuk 0,05 gram, konsentrasi 25 ppm dan pH 7 dengan efisiensi penyerapan sebesar 94,2423%. Kondisi penyerapan auramine dalam limbah pencelupan kain oleh serbuk pelepah batang pisang tanpa perlakuan besarnya 51,7271% dan untuk serbuk batang pisang dengan perlakuan sebesar 41,8415%