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All Journal Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Prima Medika Sains REACTOR : Journal of Research On Chemistry And Engineering SAINTI: Majalah Ilmiah Teknologi Industri
Tengku Rachmi Hidayani, Tengku Rachmi
Politeknik ATI Padang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology Nursing Public Health

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Aktivitas antibakteri bakteri endofit daun kelapa sawit (Elaeis guineensis) terhadap Escherichia coli dan Staphylococcus aureus Harmileni, Harmileni; Saragih, Gimelliya; Hidayani, Tengku Rachmi; Mirnandaulia, Meutia
Jurnal Prima Medika Sains Vol. 5 No. 1 (2023): Juni
Publisher : Program Studi Magister Kesehatan Masyarakat Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/jpms.v5i1.3755

Abstract

Mikroorganisme endofit adalah mikroorganisme yang terdapat dalam jaringan tanaman dan memiliki kemiripan sifat senyawa bioaktif dengan tanaman inangnya. Daun kelapa sawit diketahui memiliki aktivitas antibakteri, tetapi penelitian mengenai aktivitas antibakteri bakteri endofitnya belum pernah dilaporkan. Tujuan penelitian ini adalah mengisolasi bakteri endofit dari daun kelapa sawit serta menentukan aktivitas antibakteri terhadap Escherichia coli dan Staphylococcus aureus. Delapan isolat bakteri endofit berhasil diisolasi dari daun kelapa sawit. Satu isolat termasuk bakteri Gram negatif dan tujuh isolat adalah bakteri Gram positif. Analisa morfologi menunjukkan satu isolat berbentuk basil dan yang lain berbentuk kokus. Uji antibakteri menunjukkan satu isolat (IDS18) menunjukkan aktivitas antibakteri yang kuat terhadap S.aureus dengan zona hambat 13 mm, tetapi tidak menunjukkan aktivitas antibakteri terhadap E. coli. Sementara lima isolat yaitu IDS1, IDS10, IDS11, IDS14 dan IDS16 menunjukkan aktivitas yang lemah terhadap E.coli, tetapi tidak memiliki aktivitas terhadap S.aureus. Hasil penelitian menunjukkan bahwa bakteri endofit daun kelapa sawit berpotensi sebagai penghasil senyawa antibakteri. Diperlukan penelitian lebih lanjut mengenai optimasi produksi senyawa bioaktif antibakteri serta karakterisasinya.
Antibacterial activity of palm leaf extract against Propionibacterium acnes and Staphylococcus aureus Harmileni, Harmileni; Hidayani, Tengku Rachmi; Chiuman, Linda; Marfitania, Taranipa
Jurnal Prima Medika Sains Vol. 6 No. 1 (2024): June
Publisher : Program Studi Magister Kesehatan Masyarakat Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/jpms.v6i1.5258

Abstract

Acne vulgaris is the most common skin disorder in adults and young adults. The growth of acne is caused by many factors, including excess sebum secretion and changes in microbial flora, mainly the colonization of Propionibacterium acnes and Staphylococcus aureus. This study aimed to determine the anti-bacterial activity of palm leaf extract against Propionibacterium acnes and Staphylococcus aureus. The research procedure includes palm leaf extraction and anti-bacterial tests. Palm leaf extraction was carried out using ultrasonication, while the anti-bacterial test was carried out using disc diffusion. The palm leaf extract obtained was diluted to 10, 20, 30, 50, and 50%, and each variation of this concentration was tested for anti-bacterial activity. The results of the anti-bacterial test showed that all palm leaf extract samples from 10% to 50% concentration could inhibit the growth of P. acnes and S. aureus bacteria. The 50% extract of ultrasonicated palm leaves had the largest inhibition zone diameter of 13.8 mm for P. acnes bacteria and 10.1 for S. aureus bacteria. From the results of this study, palm leaf extract has the potential to be used as a product for the prevention or treatment of acne vulgaris.
UJI BIODEGRADASI PLASTIK BIODEGRADABEL DARI LIMBAH POLIPROPILENA DAN PATI BIJI DURIAN SEBAGAI BAHAN PENGISI Pelita, Elda; Hidayani, Tengku Rachmi; Nirmala, Dyah
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 14, No 2 (2017): VOL 14 NO 2 DESEMBER 2017
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v14i2.264

Abstract

This research was conducted with the aim to produce a biodegradable plastic from waste plastic polypropylene mixing with the starch of durian seeds by adding maleic anhydride as a crosslinking agent, and benzoyl peroxide as initiator. In this study, carried out with a variety of ingredients are added with a certain ratio that is successively waste Polypropylene, starch from durian seeds, maleic anhydride and benzoyl peroxide are (94:6:1), (94:6:1:1), (94:6:2:1), (94:6:3:1). Biodegradable plastic in the characterization of the analysis with the ability to decompose in nature biodegradable test, with embedding samples of biodegradable plastic produced into three types of soil, namely normal soil, ground litter and sand for 1 month. Each sample was observed a decrease in mass every 10 days. From Biodegradabel in nature results obtained mass loss that has been grown for 1 month is on the ground litter by 9.08% in the sample by varying the composition (94:6:1:1).
KARAKTERISASI PATI DARI BATANG KELAPA SAWIT YANG TELAH TIDAK PRODUKTIF Hidayani, Tengku Rachmi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 14, No 2 (2017): VOL 14 NO 2 DESEMBER 2017
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v14i2.269

Abstract

Research on the extraction of starch from unproductive palm oil rods to utilize unproductive palm oil waste into useful materials. This study consists of three stages. The first stage is making sample preparation. The second stage is the process of starch extraction. The last stage is the characterization of starch from the oil palm rod obtained. The characterization of starch yield obtained was analyzed by functional group with FTIR test and thermal characteristic analysis by DTA test. The results showed that the starch of the palm oil rods produced has a good character where the FTIR results show the specific groups for starch and DTA results according to the decomposition point of starch that is at the temperature of 408oC.
Karakterisasi Komposit Polimer dengan Matriks Polistirena dan Bahan Pengisi dari Berbagai Limbah Pabrik Kelapa Sawit Hidayani, Tengku Rachmi; Hutajulu, Poltak Evencus; Marbun, New Vita Mey Destty; Pardede, Erwin; Paramitha, Ratih; Nasution, Reni Silvia
REACTOR: Journal of Research on Chemistry and Engineering Vol 5, No 1 (2024): Published in June 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.115

Abstract

The first stage of this research was to make polystyrene grafted with maleic anhydride for making the couping agent with other filling compound. In the second stage, the polystyrene matrix grafted with maleic anhydride was combined with filler material derived from palm oil mill waste using the dry mixing method with an internal mixer. Among several variables tested, the optimum composition of the polymer composite was found to be Polystyrene grafted with maleic anhydride: sludge: boiler ash in a ratio of 60:25:15. This composition exhibited a Young's modulus of 856.752 MPa, a tensile strength of 6.057 MPa, and an elongation at break of 0.775%. Differential Scanning Calorimetry (DSC) testing revealed a glass transition temperature of 403.22°C, a crystallization temperature of 426.39°C, and a cross-linking indication temperature of 478.64°C. Scanning Electron Microscopy (SEM) tests showed an even distribution of the material. Fourier-transform infrared (FT-IR) spectroscopy indicated a decrease in absorption peaks at 3024.94 cm⁻¹ and 3025.15 cm⁻¹, while the polystyrene characteristics at the wave number 1600.57 cm⁻¹ appeared sharper. The sound absorption test results met the ISO 11654:1997 standard for the rating level of sound absorption coefficient in materials, achieving Class D and C sound absorption with an αₙₓ value ranging from 0.328 to 0.793.
The Development of an IoT-Based Palm Solid Waste Counting System for Empty Fruit Bunches in the Palm Oil Industry Siregar, Emil Salim Parhimpunan; Mirnandaulia, Meutia; Hutajulu, Poltak Evencus; Hidayani, Tengku Rachmi; Marbun, New Vita Mey Dessty; Rachmiadji, Irwan; Hikmawan, Oksya; Hariyanto, Hariyanto; Tarigan, Enda Rasilta Br.; Simanjuntak, Andreas Rumata; Falah, Miftahul; Pardede, Erwin; Donda, Donda; Sitepu, Evi Christiani
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 10, No 4 (2024): December
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.93563

Abstract

The recent application of palm empty fruit bunches as solid waste directly on soil or as organic fertilizer has enhanced palm farms. Moreover, the co-products of this palm oil mill constitute a dependable metric for assessing mill processing performance, specifically regarding quantity and weight. The quantity of palm empty fruit bunches is usually ascertained through manual counting using a hand counter during processing. The imprecision in calculating palm empty fruit bunches is a limitation of this method, as operators sometimes perform erroneous calculations, overlook quantities, and produce contradictory results for mill management. To address this issue, the sector requires enhanced execution of a monitoring and counting system methodology. The aim of this community service project is to create an empty fruit bunches count station using an IoTbased palm solid waste counting system for use in palm mills. The Ministry of Industry - Politeknik Teknologi Kimia Industri (PTKI) Medan will engage in and oversee the advancement of Industry 4.0 within the industrial sector. The initiative was executed at Tanah Gambus Estate in Batubara Regency, North Sumatra. Assistance was provided by a palm mill partner associated with PT. Socfin Indonesia. The implementation of the empty fruit bunches palm oil counting system was conducted efficiently, facilitating optimal operations, real–time online monitoring, uninterrupted functionality exceeding 24 hours daily, swift assessment of the empty fruit bunches volume, immediate identification of traditional counting inaccuracies by operators and management, and its station provides benefits to the palm industry.
Karakteristik Komposit Polimer dengan Matriks Polistirena dan Bahan Pengisi dari Berbagar Limbah Pabrik Kelapa Sawit Hidayani, Tengku Rachmi; Hutajulu, Poltak Evencus; Marbun, New Vita Mey Destty; Pardede, Erwin; Paramitha, Ratih; Nasution, Reni Silvia
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.115

Abstract

The first stage of this research was to make polystyrene grafted with maleic anhydride for making the couping agent with other filling compound. In the second stage, the polystyrene matrix grafted with maleic anhydride was combined with filler material derived from palm oil mill waste using the dry mixing method with an internal mixer. Among several variables tested, the optimum composition of the polymer composite was found to be Polystyrene grafted with maleic anhydride: sludge: boiler ash in a ratio of 60:25:15. This composition exhibited a Young's modulus of 856.752 MPa, a tensile strength of 6.057 MPa, and an elongation at break of 0.775%. Differential Scanning Calorimetry (DSC) testing revealed a glass transition temperature of 403.22°C, a crystallization temperature of 426.39°C, and a cross-linking indication temperature of 478.64°C. Scanning Electron Microscopy (SEM) tests showed an even distribution of the material. Fourier-transform infrared (FT-IR) spectroscopy indicated a decrease in absorption peaks at 3024.94 cm⁻¹ and 3025.15 cm⁻¹, while the polystyrene characteristics at the wave number 1600.57 cm⁻¹ appeared sharper. The sound absorption test results met the ISO 11654:1997 standard for the rating level of sound absorption coefficient in materials, achieving Class D and C sound absorption with an αₙₓ value ranging from 0.328 to 0.793.
Co-Authors Chiuman, Linda Donda, Donda Dyah Nirmala, Dyah Elda Pelita, Elda HARIYANTO HARIYANTO Harmileni Hikmawan, Oksya Hutajulu, Poltak Evencus Marbun, New Vita Mey Dessty Marbun, New Vita Mey Destty Marfitania, Taranipa Miftahul Falah Mirnandaulia, Meutia Paramitha, Ratih Pardede, Erwin Rachmiadji, Irwan Reni Silvia Nasution Saragih, Gimelliya Simanjuntak, Andreas Rumata Siregar, Emil Salim Parhimpunan Sitepu, Evi Christiani Tarigan, Enda Rasilta Br.