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All Journal Jurnal Rekayasa Proses JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Jurnal Bahan Alam Terbarukan Jurnal Teknologi Konversi JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Prosiding Semnastek Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) JURNAL KONVERSI Chimica et Natura Acta Jurnal Rekayasa Proses Jurnal Pengabdian Masyarakat Teknik Journal of Applied Sciences and Advanced Technology BASKARA: Journal of Business and Entrepreneurship Jurnal Natural Aceh International Journal of Science and Technology
Ratri Ariatmi Nugrahani
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Muhammadiyah Jakarta, Jl. Cempaka Putih Tengah 27, Jakarta Pusat 10510
Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Neuroscience Physics Social Sciences Other

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Coal Fly Ash as Adsorbent in Removing Organic Compounds (COD) From Tanah Tinggi Wastewater Treatment Installation in Tangerang City Muhammad Djarkasih; Ratri Ariatmi Nugrahani; Nurul Hidayati Fithriyah
Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.5.2.59-66

Abstract

Coal is a combustible organic mineral; the ash produced from burning coal is fly ash and bottom ash. This study aims to determine the process of treating fly ash waste from coal combustion by activating and characterizing it as an adsorbent and to obtain the best type of adsorbent with a concentration of coal fly ash as an adsorbent in removing organic compounds COD so that it meets the standards. Quality by accordance with the Regulation of the Minister of Environment and Forestry Number 68 of 2016 concerning Domestic Wastewater Quality Standards. The research will be carried out with 2 (two) processes, namely the process of making adsorbents and testing the application of fly ash adsorbents with variations in the concentration of sulfuric acid (H2SO4) 2.5%, 5%, and 10% and variations in stirring time of 60, 90, 120 and 150 minutes, then analyzed the COD (Chemical Oxygen Demand) content so that it meets the quality standards that have been set. The results showed that the fly ash content of coal has the potential to be used as an adsorbent because of the high SiO2 content of 35.8% and the Al2O3 content of 17.0%. Results The initial concentration of COD was 404 mg/l. The final concentration of COD for various stirring times with various H2SO4 activation was 11 mg/l with a stirring time of 150 minutes. Optimum conditions of removal efficiency (%) COD for variation of stirring time with various H2SO4 activation obtained 35.73%, R2 value = 0.9891, and the linear regression equation is y = 0.206x - 4.864 with the value of y is COD efficiency removal (%) and x is stirring time (minutes).
Effects of Drying Time on Yield and Moisture Content of “Sumahe” Powdered Drink Using Spray Dryer Ismiyati Ismiyati; Fatma Sari; Ratri Ariatmi Nugrahani; Anwar Ilmar Ramadhan
Aceh International Journal of Science and Technology Vol 7, No 3 (2018): December 2018
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.28 KB) | DOI: 10.13170/aijst.7.3.9620

Abstract

As people today are becoming more health-conscious, various efforts have been made to keep up one’s health, such as by consuming highly nutritious food and drinks. One of the nutritious food sources produced from bees is honey, bioactive compounds of polyphenols, glyoxal and methylglioxal. Honey could be used as a health drink by mixing with ginger. This health drink is also produced as powdered drink to simplify storing, reduce the use of plastic packaging, and to add product value to increase market share. The aim of this research was to analyze the effects of drying time for 5, 15, and 25 minutes with an addition of maltodextrin on the yield, density, and moisture content of “Sumahe” instant powdered drink, made from cow’s milk, honey, and ginger. The results showed that the longer the drying time, the lower the moisture content of the drink. Meanwhile, the longer the drying time, the higher the yield became. A taste test of “Sumahe” also indicated that from 25 minutes of drying time, most of the panelists rated the drink as tasteful and delicious.
ANALISIS CEMARAN MIKROBA DALAM SEDIAAN OBAT BENTUK LARUTAN ORAL Ananda Kinanty; Priyanto Dwi Nugroho; Ratri Ariatmi Nugrahani
Jurnal Konversi Vol 11, No 2 (2022)
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/konversi.11.2.14

Abstract

Obat sediaan larutan adalah sediaan cair yang mengandung satu atau lebih zat kimia yang terlarut. Kontaminasi bakteri pada obat dapat terjadi pada prosespengolahan bahan awal, produksi dan penyimpanan. Pengujian secara mikrobiologi perlu sekali dilakukan untuk menjamin obat bebas dari cemaran mikroba. Analisis cemaran mikroba kali ini mengunakan 3 parameter. Parameter pertama yaitu uji Total Aerobic Microbial Count (TAMC) dengan metode pour plate menggunakan media TSA (Trypticase Soy Agar) , parameter kedua yaitu Total Yeasts and Molds Count (TYMC) dengan metode poure plate menggunakanmedia SDA(Sabouraud Dextrose Agar) dan parameter ketiga yaitu identifikasi Escherichia coli dimana kontrol positif akan dilanjutkan pengujian dengan metode vitek setelah dilakukan proses pewarnaan Gram. Pengujian ini dilakukan di Laboratorium Quality Control bagian Mikrobiologi QC PT. Kalbe Farma, Tbk. dari tanggal 3 Maret-12 Maret 2020. Berdasarkan hasil pengujian, dapat disimpulkan bahwa sampel tidak mengandung mikroba, kapang, dan khamir serta negatif Escherichia coli sesuai dengan persyaratan metode analisa PT. Kalbe Farma, Tbk
Pengabdian Masyarakat Pelatihan Pembuatan Produk Minuman Sehat dan Masker Aloe vera di Komunitas Pengajian Nusa loka Serpong Kota Tangerang Selatan Tri Yuni Hendrawati; Helfi Gustia; Ratri ariatmi Nugrahani; Ummul Habibah Hasyim; Ismiyati Ismiyati; muhammad kadarisman; untung hidayat; ciska nabilah wusono; Alivia Fernanda Agdila
Jurnal Pengabdian Masyarakat Teknik Vol 5, No 2 (2023): Vol 5, No 2 (2023): Jurnal Pengabdian Masyarakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.5.2.65-70

Abstract

Permasalahan dari gaya hidup masyarakat saat ini yang lebih senang dengan minuman instan dan kosmetik yang bukan dari bahan alam mendorong untuk dapat menyebarkan pengetahuan dan mengadakan pelatihan untuk pembuatan produk minuman sehat dan masker Aloe vera di kompleks Nusa loka Serpong Kota Tangerang Selatan bagi paguyuban ibu-ibu Nusaloka. Kegiatan ini meliputi pelatihan selama satu hari dan persiapannya. Dalam pelaksanaan dilakukan pretest dan post test terhadap pemahaman materi. Kegiatan ini melibatkan dosen anggota dan mahasiswa dalam rangka pelaksanaan Mereka Belajar Kampus Merdeka (MKBKM). Kegiatan ini dilakukan sebagai upaya meningkatkan pemahaman serta keterampilan peserta dengan harapan dapat mengandalkan kemampuan serta keterampilannya sendiri. Diharapkan dari peserta termotivasi untuk memanfaatkan waktu luang dalam memenuhi kebutuhan dan penghasilan tambahan. Kegiatan pengabdian ini merupakan hilirisasi kegiatan penelitian Aloe vera yaitu pembuatan minuman sehat dan masker alami Aloe vera. Kesimpulan dari kegiatan pengabdian masyarakat berjalan dengan baik dan pada masukan peserta diinginkan pelatihan selanjutnya yaitu tentang gizi dan produk kosmetik halal, Pembuatan pupuk organik dan Pelatihan Hidroponik
The performance of beeswax coating containing vegetable oil-based lecithin as an emulsifier on weight loss and shelf life estimation of mango NURUL HIDAYATI FITHRIYAH; RATRI ARIATMI NUGRAHANI; RUSNIA JUNITA HAKIM
Jurnal Natural Volume 20 Number 2, June 2020
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v20i2.16758

Abstract

Fruits are one of the agricultural commodities grown in Indonesia and mango constitutes the third largest. One of the disadvantages in transporting mangoes to long distant markets is the short shelf life when fruits are stored at the room temperature. Some efforts to maintain quality and freshness have been coating the fruits with natural wax/beeswax. This study aimed to determine the effects of beeswax coating containing vegetable oil-based lecithin on physical and weight loss in mango, as well as estimate the shelf life using the Accelerated Shelf-Life Testing (ASLT) method. The coating formulation consisted of beeswax, triethanolamine, stearic acid, vegetable lecithin (soybean: rice bran), and water. Mango coated with beeswax coating with a concentration of vegetable lecithin emulsifier were varied at 0.25, 0.5, 0.75, 1%, and control (without beeswax coating) stored at room temperature 301oK and cooler temperature 286oK. Samples were monitored for five weeks and evaluated periodically for physical change and weight loss. Beeswax coated mango exhibited slower rate of ripening than the control stored in both room and cooler temperatures. The lowest total weight loss of mangoes at both temperatures for 5 weeks with beeswax coating at 0.25% vegetable lecithin emulsifier was 7.25%. The estimation of shelf life using ASLT method and Arrheinus model to mango fruit coated with beeswax coating at 0.25% vegetable lecithin concentration as emulsifier was 36.91 days.
Co-Authors 'Aini Rahmadhaniar Ahmad Muhammad Rizki Triaji Alivia Fernanda Agdila Ananda Kinanty Andyco Amihardy Anisa Kemala Dewi Anisa Kemala Dewi, Anisa Kemala Anisa Nurtri Lestari Anwar Ilmar Ramadhan Azrul Syamsu Budiyanto Budiyanto ciska nabilah wusono Dedek Rahayu Desy Hijriyah Dimah Noviyanti Fatma Sari Fitri Nuryani Gati Ningsih, Gati Hana Ambarwati Helfi Gustia Helmi Rizki Hayati Helmi Rizki Hayati, Helmi Rizki Ika Nirmalasari Ismiyati Ismiyati Ismiyati Ismiyati Ismiyati Ismiyati Loekman Satibi Loekman Satibi, Loekman Muh. Kadarisman Muhammad Djarkasih Muhammad Ilham Setyoaji Muhammad Kadarisman Muhammad Subehi Nelfiyanti Nelfiyanti Nelfiyanti Nelfiyanti Nelfiyanti Nelfiyanti Nurul Fithriyah Nurul Hidayati Nurul Hidayati Fithriyah Nurul Hidayati Fithriyah NURUL HIDAYATI FITHRIYAH Nurul Hidayati Fitriyah Priyanto Dwi Nugroho Retno Farida Rini Siskayanti Rusnia Junita Hakim RUSNIA JUNITA HAKIM Shafira Hafizhah Putri Suharno Shela Ratri Utami, Shela Ratri Susanty Susanty Susanty Susanty, Susanty Tiara Armelia Ismoyo Tita Diana Ningsih Titik Lestariningsih Tri Wahyuni Wasyilah Tri Yuni Hendrawati Tri Yuni Hendrawati Tri Yuni Hendrawati Tri Yuni Hendrawati Tri Yuni Hendrawati Ummul Habibah Hasyim untung hidayat Yukarie Ayu Wulandari Yunita Teresa Yustinah Yustinah Zahra Hanifah