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All Journal Jurnal Litbang Industri Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Journal of Applied Technology
Cut Meurah Rosnelly
Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Engineering Industrial & Manufacturing Engineering

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Antioxidant Activity of Aceh Curry Leaves (Murraya Koenigii) Extracted Using Various Solvents Desy Anggriani; Lisa Azila; Cut Meurah Rosnelly; Hisbullah Hisbullah; Syaubari Syaubari; Teuku Mukhriza
Journal of Applied Technology Vol 10, No 1 (2023)
Publisher : Journal of Applied Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.098 KB)

Abstract

Free radicals are molecules that are highly reactive and contain unpaired electrons. These molecules are harmful to healthy cells. Antioxidants have the ability to neutralise free radicals by donating one of their electrons to the molecules that make up free radicals. This prevents free radicals from wreaking havoc on healthy cells. Curry leaf, also known as Murraya Koenigii, is a member of the Rutaceae family and is a spice that is commonly used. By gauging the degree to which various solvents and ratios are able to extract antioxidants from curry leaves, the objective of this study is to find the optimal solvent and combination for doing so. A Soxhlet and a solvent mixture consisting of hexane, chloroform, and ethanol in a ratio of 1:10 were used to extract the anti-oxidant components of curry leaves. With a yield percentage of 30.53 percent, the ethanol solvent proved to be the most efficient of the three in terms of extracting antioxidants from the sample. Not only did extracts of curry leaves obtained from the ethanol solvent have the best yield (when compared to extracts derived from other solvents), but they also have the highest levels of inhibition (54.42%) and antioxidant activity (40.667 ppm) when it comes to catching free radicals.
Antioxidant Activity of Aceh Curry Leaves (Murraya Koenigii) Extracted Using Various Solvents Desy Anggriani; Lisa Azila; Cut Meurah Rosnelly; Hisbullah Hisbullah; Syaubari Syaubari; Teuku Mukhriza
Journal of Applied Technology Vol 10, No 1 (2023)
Publisher : Journal of Applied Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Free radicals are molecules that are highly reactive and contain unpaired electrons. These molecules are harmful to healthy cells. Antioxidants have the ability to neutralise free radicals by donating one of their electrons to the molecules that make up free radicals. This prevents free radicals from wreaking havoc on healthy cells. Curry leaf, also known as Murraya Koenigii, is a member of the Rutaceae family and is a spice that is commonly used. By gauging the degree to which various solvents and ratios are able to extract antioxidants from curry leaves, the objective of this study is to find the optimal solvent and combination for doing so. A Soxhlet and a solvent mixture consisting of hexane, chloroform, and ethanol in a ratio of 1:10 were used to extract the anti-oxidant components of curry leaves. With a yield percentage of 30.53 percent, the ethanol solvent proved to be the most efficient of the three in terms of extracting antioxidants from the sample. Not only did extracts of curry leaves obtained from the ethanol solvent have the best yield (when compared to extracts derived from other solvents), but they also have the highest levels of inhibition (54.42%) and antioxidant activity (40.667 ppm) when it comes to catching free radicals.
Peningkatan kinerja membran hidrofobik polyethersulfone (PES) menggunakan silika berbasis sekam padi sebagai aditif Umi Fathanah; Mirna Rahmah Lubis; Cut Meurah Rosnelly; Syawaliah Muchtar; Mukramah Yusuf
Jurnal Litbang Industri Vol 14, No 1 (2024)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v14i1.8299.85-92

Abstract

Penelitian ini menyelidiki pengaruh penambahan aditif silika dari seka padi untuk meningkatkan kinerja dan kketahanan terhadap fouling. Pembuatan membran dilakukan dengan metode non solvent induced phase separation (NIPS) secara blending polimer. Membran yang dihasilkan dikarakterisasi dengan mengevaluasi gugus fungsi mengunakan FTIR, struktur morfologi menggunakan SEM, sudut kontak air menggunakan WCA meter serta uji porositas membran dengan metode gravimetri. Temuan penelitian menunjukkan bahwa aditif silika memiliki pengaruh positif dalam membran PES yang telah disiapkan. Terjadinya perubahan struktur morfologi membran yang dibuktikan dari hasil SEM pada penampang melintang membran. Peningkatan konsentrasi silika yang ditambahkan, mengakibatkan peningkatan  porositas serta sifat hidrofilisitas membran modifikasi. Hasil penelitian menunjukkan fluks air optimum diperoleh pada penambahan 3% silika yaitu sebesar 62,3 L/m2.jam dengan rejeksi asam humus sebesar 64,4% dengan sifat anti fouling membran meningkat sebesar 2,7 kali   dibandingkan dengan membrane PES tanpa modifikasi.
Wastewater Processing of Chicken Slaughterhouses Using Combination of Trickling Filter and Rotating Biological Contactor Handriani Handriani; Muhammad Faisal; Cut Meurah Rosnelly
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.249-261

Abstract

This research was conducted to explore the effectiveness of combined Trickling Filter (TF) and Rotating Biological Contactor (RBC) method in processing liquid waste from chicken slaughterhouses through local and economical media. Microorganisms were grown by inserting liquid waste into a TF tank containing gravel, used ceramics, coconut shells, and pumice. Subsequently, liquid waste flowed into a rotating biological contactor added with local microorganisms from stale rice and fermented banana stems. Waste treatment was carried out with variations in retention time of 1, 3, and 6 h. The results showed that at 6 h, the organic compound decreased significantly. The removal efficiency obtained was 87.05%, 82.11%, 90.51%, 22.57%, 79.36%, and 88.66% for Biological Oxygen Demand, Chemical Oxygen Demand, Total Suspended Solids, Total Dissolved Solids, Turbidity, and Ammonia, respectively. This high efficiency was supported by the collaboration between the activity of microorganisms attached to the TF biofilm and the use of local microorganisms in decomposing organic compounds in the rotating biological contactor. The combination of the two methods has been proven to help waste treatment process from chicken slaughterhouses in an environmentally friendly and efficient manner. Keywords: Biofilm, Chicken slaughterhouse waste, Local microorganisms, Rotating biological contactor, Trickling filter.
Co-Authors Desy Anggriani Handriani Handriani Hisbullah Hisbullah Lisa Azila Mirna Rahmah Lubis Muhammad Faisal Mukramah Yusuf Nurul Aflah Syaubari Syaubari Syawaliah Muchtar Teuku Mukhriza Umi Fathanah