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All Journal JURNAL KIMIA SAINS DAN APLIKASI JGE (Jurnal Geofisika Eksplorasi) JFA (Jurnal Fisika dan Aplikasinya) Jurnal Sains Teknologi dan Lingkungan (JSTL) Biosaintifika: Journal of Biology & Biology Education Jurnal Abadimas Gorontalo Jurnal AbdiMas Nusa Mandiri Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Innovation for Community Service Journal SMART: Jurnal Pengabdian Kepada Masyarakat
Patty, Philipus J.
Department Of Physics, Universitas Pattimura, Jl. Ir. M. Putuhena - Poka, Ambon 97233|Universitas Pattimura|Indonesia
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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.
Co-Authors Aditya Ramadhan Amos Killay Desy A. Ayuningrum Efraim Samson Elly, Erfin Gultom , Rimawanto Gultom, Rimawanto Kololu, Micky Kotarumalos, Siti Hafsa Kotarumalos, Sitti Hafsa Leonita Y. Latuasan Multi, Warni Rabiyatul Uzda Ramadhan, Aditya Resti Limehuwey, Resti Robert Hutagalung Samsul Bahri Silahooy, Veince B Sukri, M. Riswan Anas Synodalia C Wattimena Synodalia C. Wattimena Synodalia C. Wattimena Violin Ririmasse Wattimena, Synodalia Wattimena, Synodalia C