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Sekolah Tangguh Bencana : Edukasi Kebumian untuk Generasi Tangguh Limehuwey, Resti; Kotarumalos, Sitti Hafsa; Gultom, Rimawanto; Multi, Warni; Patty, Philipus Josepus; Ramadhan, Aditya; Bahri, Samsul
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 5 No. 6 (2025): November 2025 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/altifani.v5i6.901

Abstract

Abstrack Sekolah Tangguh Bencana : Edukasi Kebumian untuk Generasi Tangguh
Crystalline Properties of Jambu (Syzygium aqueum (Burm. f.) Alston) and Jackfruit (Artocarpus heterophyllus) Seed Starches: An XRD Spectroscopic Study Wattimena, Synodalia; Patty, Philipus
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 3 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i3.818

Abstract

Starch, a complex carbohydrate found in plants, has become an alternative raw material to make plastics (bioplastics). Bioplastics have been intensively used to replace conventional plastics, which cannot be degraded and thus cause environmental problems. Therefore, starch has been the focus of many studies, where researchers study its properties, such as crystalline properties. These properties influence the properties of starch-based bioplastics: their mechanical strength, water resistance, and degradation rate are affected by the arrangement of starch molecules into crystalline structures. This study aims to characterize crystalline properties of starches of jambu fruit (Syzygium aqueum (Burm. f.) Alston) and jackfruit seeds (Artocarpus heterophyllus). For this purpose, X-ray diffraction (XRD) spectroscopy was used. The results show that the starches of jambu and jackfruit fruit seeds belong to different types: B-type starch for jambu and A-type starch for jackfruit. The index of crystallinity of starch of jackfruit seed, 54.0%, is higher than that of starch of jambu fruit seed, 38.1%. Starch of jackfruit seed has higher crystalline properties compared to starch of jambu seed.
PEMANFAATAN APLIKASI GEOLISTRIK UNTUK IDENTIFIKASI POTENSI AIR TANAH DI DAERAH HILLA Multi, Warni; Kotarumalos, Sitti Hafsa; Gultom , Rimawanto; Limehuwey, Resti; Patty, Philipus J
Jurnal AbdiMas Nusa Mandiri Vol. 7 No. 2 (2025): Periode Oktober 2025
Publisher : LPPM Universitas Nusa Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/abdimas.v7i2.7230

Abstract

Hilla, located in Central Maluku Regency, boasts a gently sloping to steep topography. Extensive green plantations dominate the region. However, water resources, a primary need for the community and agricultural land, remain an unresolved challenge. This community service activity was conducted to assess the potential of groundwater in the Hilla area and provide a basis for effective management. Therefore, geophysical applications, specifically geoelectricity, were utilized to identify potential rock aquifers for groundwater storage. The potential aquifer, based on 2D resistivity cross-section data from geoelectrical readings, was identified at the second location, at a depth of 10-15 meters, and is thought to be formed by sedimentary limestone. This interpretation offers valuable insights for the Hilla community and local government to explore and utilize groundwater resources in the surrounding area. Another positive impact is that the Hilla area can meet its need for reliable and economical groundwater sources directly within its own region, without requiring supply from nearby areas or cities. This ensures that the local community's daily activities are effectively met.