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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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Journal : Jurnal Rekayasa Proses

 1 
The Effects of Aloe Vera Gel Addition on the Effectiveness of Sunscreen Lotion Tri Yuni Hendrawati; Hana Ambarwati; Ratri Ariatmi Nugrahani; Susanty Susanty; Ummul Habibah Hasyim
Jurnal Rekayasa Proses Vol 14, No 1 (2020)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.426 KB) | DOI: 10.22146/jrekpros.45247

Abstract

especially in cosmetics. The aloe plant that is cultivated in Indonesia to supply this industry is Aloe chinensis Baker. This research is to determine the effects of Aloe vera gel extract on the effectiveness of sunscreen lotion. The steps taken included Aloe vera gel extraction, flavonoid absorption test, sun protection factor (SPF) value measurement, pH test, viscosity test, homogeneity test, and organoleptic evaluation. The extract was added to the base sunscreen formulation at five different concentrations. UV-Vis spectrophotometry at 290 – 320 nm was performed on the preparations to determine their SPF values. The highest SPF value of 10.21 was found in the preparation containing 20% Aloe vera gel extract. This value falls within the national industrial standard for sunscreen SPF value range of 2 – 60. The research showed that a higher concentration of Aloe vera gel extract increased the pH, with the most elevated pH at 7.0 for the preparation containing 20% Aloe gel vera extract. This value also falls within the national pH standard for sunscreen of 4.5 – 8.0. The higher concentration of Aloe vera gel extract also increased the dispersive amount of the sunscreen preparation, with the highest value of 5 cm resulting from 20% Aloe vera gel extract addition. This research showed that the increased addition of Aloe vera gel extract resulted in higher SPF value. A B S T R A KLidah buaya adalah salah satu tanaman obat yang banyak digunakan dalam industri farmasi, terutama di bidang kosmetik. Tanaman lidah buaya yang dibudidayakan di Indonesia untuk memasok kebutuhan  industri adalah Aloe jenis Chinensis Baker. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak gel lidah buaya terhadap efektivitas lotion tabir surya. Langkah-langkah yang diambil adalah ekstraksi gel lidah buaya, uji serapan flavonoid, pengukuran nilai sun protection factor (SPF), uji pH, uji viskositas, uji homogenitas, dan evaluasi organoleptik. Ekstrak ditambahkan ke formulasi tabir surya dasar pada lima konsentrasi yang berbeda. Spektrofotometri UV-Vis pada panjang gelombang 290-320 nm dilakukan pada persiapan untuk menentukan nilai SPF tabir surya aloe vera. Nilai SPF tertinggi sebesar 10,21 ditemukan dalam sediaan yang mengandung 20% ekstrak gel lidah buaya. Nilai ini termasuk dalam Standar Industri Nasional (SNI) untuk kisaran nilai SPF tabir surya 2-60. Penelitian menunjukkan bahwa konsentrasi yang lebih tinggi dari ekstrak gel lidah buaya meningkatkan pH, dengan pH tertinggi pada 7,0 untuk preparasi yang mengandung 20% ekstrak lidah buaya. Nilai ini juga berada  kisaran standar pH nasional untuk tabir surya 4,5-8,0. Semakin tinggi konsentrasi ekstrak gel Aloe vera juga meningkatkan nilai dispersif sediaan tabir surya, dengan nilai tertinggi 5 cm yang dihasilkan dari penambahan 20% ekstrak lidah buaya. Penelitian ini menunjukkan bahwa penambahan ekstrak gel lidah buaya menghasilkan nilai SPF yang lebih tinggi.
Lead Adsorption in Lubricant Waste using Zeolite 'Aini Rahmadhaniar; Ratri Ariatmi Nugrahani; Nurul Fithriyah; Titik Lestariningsih
Jurnal Rekayasa Proses Vol 14, No 1 (2020)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.792 KB) | DOI: 10.22146/jrekpros.49489

Abstract

Lubricant waste is one of the hazardous refuses which are regulated on the limit of lead content according to Government Regulations (Kep-51/MenLH/10/1995). Therefore, it is necessary to research for reducing the lead content. The purpose of this study is to understand the effect of adding adsorbents to decrease lead content in waste of lubricants taken from ships. The waste lubricant was recycled by adsorption using zeolite. Lubricant waste samples of 200 mL each were physically and chemically identified subjected to adsorption process using zeolite adsorbent whose concentrations (%w/w) were varied as follows: 7.5%, 13.25%, 14.25%, 15.75% and 17.5% with stirring speed of 150 rpm and contact time for 60 minutes. The best results were obtained at the adsorbent amount of 26.5 grams (concentration of 13.25%), for which lead content reduction reached 83%. The ANOVA F was obtained to be 13.42, and hence the study concluded that the amount of the adsorbent was related to the decrease in lead content.A B S T R A KPelumas bekas adalah salah satu limbah berbahaya yang dibatasi kadar timbalnya dalam Peraturan Pemerintah, sehingga perlu penelitian untuk menurunkan kadar timbal. Tujuan penelitian ini adalah untuk memahami pengaruh penambahan adsorben untuk menurunkan kadar timbal dalam pelumas bekas yang berasal dari mesin kapal. Pelumas bekas didaur ulang dengan adsorpsi menggunakan zeolit. Setiap sampel berisi 200 mL pelumas bekas yang telah diidentifikasi sifat fisika dan kimia-nya diadsorpsi menggunakan adsorben zeolit. Variasi konsentrasi zeolit (%w/w) yang digunakan yaitu: 7,5%; 13,25%; 14,25%; 15,75% dan 17,5% dengan kecepatan pengadukan 150 rpm dan waktu kontak 60 menit. Hasil terbaik diperoleh pada jumlah adsorben 26,5 g (konsentrasi 13,25%) dengan penurunan kadar timbal mencapai 83%. Faktor F pada hasil ANOVA adalah 13,42. Dengan demikian dapat disimpulkan bahwa terdapat korelasi antara konsentrasi adsorben dan penurunan kadar timbal.
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