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Suyatmo, Reviana Inda Dwi
Politeknik STMI Jakarta
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STRATEGI ERGONOMI INDUSTRI HILIR POLIMER: KAJIAN METODE REBA DAN ERGONOMY AWARENESS CHECKLIST Topandi, Abdussalam; Wulansari, Isma; Nisa, Khadijah Sayyidatun; Mustopa, Bismo Zulfikar; Prayudie, Untung; Suyatmo, Reviana Inda Dwi
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 3 (2024): Volume 5 No. 3 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i3.28812

Abstract

Industri hilir polimer merupakan perusahaan yang bergerak di bidang polimer untuk industri otomotif. Produk yang dihasilkan oleh PT. Mada Wikri Tunggal Plant 2 Bandung adalah komponen-komponen otomotif kendaraan roda 2 dan roda 4 yang dibuat dengan proses injeksi plastik. Urgensi pengabdian kepada masyarakat merupakan hasil dari pertimbangan mengenai peningkatan jumlah kecelakaan kerja. Kecelakaan terjadi karena beberapa hal, salah satunya lingkungan kerja yang kurang baik dan menimbulkan potensi cedera pada muskuloskeletal, postur kerja yang tidak ergonomis, serta tidak terdapat perlindungan pada lingkungan kerja. Risiko yang kemungkinan akan ditimbulkan apabila pekerja tidak memakai APD yakni keselamatan yang terancam, salah satunya dapat menimbulkan kematian apabila terjatuh dari ketinggian serta terjadinya kecacatan pada pekerja. Oleh karena itu, PT. Mada Wikri Tunggal Plant 2 Bandung harus menerapkan strategi keselamatan dan kesehatan kerja serta ergonomis. Metode yang digunakan adalah pendidikan masyarakat industri dan asset based community development (ABCD approach) yaitu metode yang meliputi identifikasi, penilaian, dan sosialisasi mengenai kondisi ergonomi karyawan yang dinilai berdasarkan rapid entire body assessment (REBA) dan ergonomi awareness checklist. Diperoleh data bahwa mitra mendapatkan peningkatan pengetahuan, keterampilan, kesehatan, pelayanan, kapasitas produksi dan jumlah omset. Dari hasil penilaian pada bagian produksi, workshop, loading, office dan quality control didapat kesimpulan bahwa perlu dilakukan perbaikan postur tubuh dengan cara mengurangi sudut bagian legs pada pekerjaan di quality control, finishing produk dan inspeksi.
EXTRACTION OF ANTHOCYANIN FROM MANGOSTEEN PEEL: VARIATIONS OF TEMPERATURE, CONCENTRATION OF CITRIC ACID AND SOLID-LIQUID RATIO Silvia Silvia; Reviana Inda Dwi Suyatmo; Tiara Nur Azizah; Syifa Aliya; Mutiara Rachma Fajria
Chemical Engineering Journal Storage (CEJS) Vol. 6 No. 03 (2026): Chemical Engineering Journal Storage (CEJS)-Juni 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v6i03.24405

Abstract

Mangosteen peel (Garcinia mangostana L.) is an agricultural residue that contains a rich source of bioactive substances, particularly anthocyanins. Mangosteen peel weighs 60% of the weight of the fruit, so it has the potential to be used as a natural dye because the amount of peel waste is greater than the fruit flesh consumed. Although mangosteen peel contains a substantial number of anthocyanins, its potential remains underexplored due to ineffective extraction techniques. The process of extracting anthocyanins from mangosteen peel is influenced by several variables, such as temperature, citric acid concentration in ethanol, and the ratio of solid to liquid. This research aims to evaluate how temperature, citric acid concentration in ethanol, and solid-to-liquid ratio influence the efficiency of anthocyanin extraction from mangosteen peel. Based on the research results, as the temperature increases, the anthocyanin levels decrease. The highest anthocyanin content was obtained at an extraction temperature of 25℃ of 105.16 mg/L. As the percentage of citric acid increases, the anthocyanin content also increases. However, there was a decrease in anthocyanin levels at a citric acid percentage of 1.5% so that the optimum value was obtained at 1% citric acid with an anthocyanin content of 98.19 mg/L. As the ratio of mangosteen peel powder and solvent increases, the anthocyanin content decreases. This could be caused by the volume of solvent increasing while the mass of mangosteen peel powder remains the same so that no more anthocyanins can be extracted as the solvent is added.
Co-Authors Abdussalam Topandi Arina, Herlin Fadila, Mitha Anifanisa Fitria Ika Aryanti Fitriyani, Noviannisa Cahya Gultom, Indah Gita Cahyani Lathiefah Oktriananda Sari Lintong Sopandi Hutahaean Lukman Nulhakim Melyna, Ella Muhamad Arif Budi Murnianti, Murnianti Mustopa, Bismo Zulfikar Mutiara Rachma Fajria Nisa, Khadijah Sayyidatun Nulhakim, Lukman Rebecca Christine Sediawan, Wahyudi Budi Shelia, Asri Octavilyanni Silvia Silvia Silvia Silvia Sulistyo, Hary Syifa Aliya Tiara Nur Azizah Topandi, Abdussalam Untung Prayudie, Untung Wahyu Mulia Hadi Wulansari, Isma Yeti Widyawati