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All Journal Jurnal Pengabdian Magister Pendidikan IPA Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya
Jolantje Latupeirissa
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Education

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Introduction to Drinking Water Quality Standards for Communities in Poka Village, Teluk Ambon District Ervina Rumpakwakra; Nikmans Hattu; Gede Wiratma Jaya; Delpina Nggolaon; Marcia Violetha Rikumahu; Afifah Thohirah; Stevi Silahooy; Jolantje Latupeirissa; Ivonne Telussa; Samuel Simra Pada; Micky Kololu
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 1 (2024): Januari - Maret
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i1.6564

Abstract

The quality of clean water used has been a top priority to maintain health and fulfill daily needs. There are many sources of clean water, including well water, bottled water, gallon water and PDAM water. The use of clean water in Poka Village still uses well water and gallon water, so there is concern among the community regarding the cleanliness and quality of the water. Therefore, this service is carried out to help answer public anxiety by introducing Drinking Water Quality Standards that have been determined in the Republic of Indonesia Minister of Health Regulation No. 492/MENKES/PER/IV/2010. Apart from that, we also show findings of polluted well water and also provide solutions on how to care for wells. During material delivery activities, we use an educational and participatory approach with the main focus being the community. The result of this service activity is that the community in Poka Village has good knowledge regarding drinking water quality standards so that it is hoped that the community can apply them in their daily lives.
PHYTOCHEMICAL PROFILE AND ANTIOXIDANT POTENTIAL OF ETHANOL EXTRACT FROM GATAL LEAVES (Laportea Decumana) OF MALUKU Simra, Semuel; Nikmans Hattu; Jolantje Latupeirissa
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6137

Abstract

Abstract This study aimed to evaluate the phytochemical profile and antioxidant activity of ethanol extract from Gatal leaves (Laportea decumana) sourced from Maluku. Dried leaf powder was extracted with 96% ethanol over three cycles of 24 hours, followed by concentration using a rotary evaporator. Qualitative phytochemical screening confirmed the presence of phenols, flavonoids, alkaloids, tannins, and terpenoids, while saponins and steroids were not detected. Phenols and flavonoids were identified as the dominant bioactive compounds responsible for strong antioxidant properties. Antioxidant activity was assessed using the DPPH assay, yielding an IC₅₀ value of 55.31 ppm slightly higher than the positive control, vitamin C (IC₅₀ = 47.20 ppm) indicating potent free radical scavenging ability. These findings confirm that the ethanol extract of Gatal leaves is rich in bioactive phytochemicals, particularly antioxidants, and holds significant potential as a natural raw material for the development of herbal or nutraceutical products.
Co-Authors Afifah Thohirah Delpina Nggolaon Ervina Rumpakwakra Gede Wiratma Jaya Ivonne Telussa Marcia Violetha Rikumahu Micky Kololu Nikmans Hattu Samuel Simra Pada Simra, Semuel Stevi Silahooy