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All Journal Biospecies Jurnal Pendidikan Biologi Undiksha Jurnal Entropi Sainstek Biology, Medicine, & Natural Product Chemistry Bioeksperimen: Jurnal Penelitian Biologi JURNAL PENGABDIAN KEPADA MASYARAKAT Pro-Life BIOMA : Jurnal Biologi Makassar Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis PENDIPA Journal of Science Education Biosaintifika: Journal of Biology & Biology Education Jambura Edu Biosfer Journal Jambura Journal of Educational Chemistry Journal Syifa Sciences and Clinical Research (JSSCR) Jurnal Review Pendidikan dan Pengajaran (JRPP) Jurnal Pembelajaran dan Biologi Nukleus Jurnal Biogenerasi JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Aksara: Jurnal Ilmu Pendidikan Nonformal Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Jurnal Ilmiah Wahana Pendidikan Indonesian Journal of Chemistry and Environment Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi JHTS Prosiding Seminar Nasional Mini Riset Mahasiswa Jurnal Pengabdian Masyarakat Teknologi Pertanian Jurnal Ilmiah Dr. Aloei Saboe Jurnal Pengabdian Masyarakat Ecovision: Journal of Environmental Solutions Jurnal Cendekia Ilmiah PESHUM Bionature Jurnal Riset dan Pengabdian Interdisipliner Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Abdimas Pedagogi: Jurnal Ilmiah Pengabdian kepada Masyarakat
Syam S. Kumaji
Universitas Negeri Gorontalo
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Proximate Analysis and Organoleptic Evaluation of Bagea Cookies Substituted with Teo Tuber Starch (Tacca leontopetaloides (L.) Kuntze) Nur Rahmatiya H Suudi; Margaretha Solang; Syam S. Kumaji; Muhammad Isra; Novri Youla Kandowangko
Biology, Medicine, & Natural Product Chemistry Vol 15, No 2 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.152.1897-1906

Abstract

Teo tuber starch (Tacca leontopetaloides (L.) Kuntze) has potential as a substitute for sago flour in the production of bagea cookies. This study aimed to analyze the proximate composition and evaluate the organoleptic acceptance of bagea cookies substituted with teo tuber starch. The study used an experimental method with a quantitative descriptive approach involving five treatments of teo tuber starch substitution in the production of bagea cookies. The observed parameters included proximate analysis (carbohydrates, protein, fat, crude fiber, moisture, and ash contents) and organoleptic evaluation (color, taste, aroma, and texture) using 35 panelists. Proximate data were analyzed descriptively, while organoleptic data were analyzed using the Kruskal-Wallis test. The best treatment was determined using the De Garmo effectiveness index. The results showed carbohydrate content ranging from 76.83–82.53%, protein content from 1.98–3.32%, fat content from 4.78–8.92%, crude fiber content from 2.24–4.06%, moisture content from 4.41–7.62%, and ash content from 0.95–3.99%. The De Garmo effectiveness index values for the proximate analysis of F1–F5 were 0.4066, 0.8677, 0.5710, 0.2824, and 0.5739, respectively, with F2 identified as the best treatment. The organoleptic test showed that substitution did not result in significant differences (p>0.05) in color, taste, aroma, or texture. Bagea cookies substituted with teo tuber starch were accepted by the panelists at a moderately preferred level. Based on these results, the De Garmo effectiveness index values for the organoleptic evaluation of F1–F5 were 1.000, 0.552, 0.320, 0.280, and 0.040, respectively, with F1 identified as the best treatment.
Analysis of Cyanide Content and Antioxidant Activity of Teo Tuber (Tacca leontopetaloides (L.) Kuntze) Starch after Soaking in NaCl Solution Pipin Tutuda; Margaretha Solang; Muhammad Isra; Syam S. Kumaji; Novri Youla Kandowangko
Biology, Medicine, & Natural Product Chemistry Vol 15, No 2 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.152.1883-1892

Abstract

Polynesian arrowroot (Tacca leontopetaloides (L.) Kuntze) is a local food source of the Torosiaje community, rich in starch and utilized as a carbohydrate source. The processing of Polynesian arrowroot into starch generally involves soaking using NaCl solution to reduce the toxic cyanide content. Additionally, Polynesian arrowroot may contain antioxidant compounds beneficial to health. However, information regarding the analysis of soaking treatment on cyanide content and antioxidant activity remains limited. This research aims to analyze the cyanide content and antioxidant activity of Polynesian arrowroot starch through soaking in NaCl solution. The research was conducted as a laboratory experiment using a quantitative approach. Cyanide content was analyzed using UV-Vis spectrophotometry, while antioxidant activity was assessed using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The results showed that the cyanide content in the raw sample was 2.170 mg/kg, while NaCl solution soaking at 15% and 30% concentrations yielded 1.927 mg/kg, respectively. These data indicate a tendency for cyanide content to decrease after three days of NaCl solution soaking. The antioxidant activity was categorized as very strong, as demonstrated by the IC50 values for 15% and 30% NaCl solution soaking at 38.69 ± 0.00 µg/mL and 28.06 ± 0.00 µg/mL, respectively, while the raw sample obtained an IC50 value of 191.76 ± 0.00 µg/mL.
Identification of Phytoplankton in Perintis Lake Fahria Ningsi Adam; Chairunnisah J. Lamangantjo; Regina Valentina Aydalina; Syam S. Kumaji; Zuliyanto Zakaria; Mustamin Ibrahim
Bionature Vol. 26 No. 2 (2025): Oktober-Desember 2025
Publisher : Jurusan Biologi Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/9car5a55

Abstract

The purpose of this study was to determine the types of phytoplankton in Perintis Lake, Suwawa District, Bone Bolango Regency, Gorontalo Province. This research is descriptive qualitative using survey method with phytoplankton as research subject. The data collection technique was carried out by purposive sampling which was carried out 3 times with the aim of collecting data effectively. The research procedure includes observation, measurement of water physico-chemical parameters, phytoplankton water sampling, and identification in the laboratory. Data analysis was carried out descriptively by identifying the types of phytoplankton using a binocular microscope and matched to the identification book. The results of the research obtained found phytoplankton 8 divisions with 24 species (Synura sp., Pandorina morum, Ankistrodesmus densus, Tetraedron triangulare, Selenastrum bibraianum, Scenedesmus sp., Tetrabaena socialis, Dictysphaerium ehrenbergianum, Raphidiopsis raciborskii, Snowella lacustris, Merismopedia sp...), Aphanocapsa sp., Pinnularia sp., Cyclotella polymorpha, Synedra sp., Pseudostaurastrum lobulatum, Isthmochloron lobulatum, Goniochloris sp., Penium polymorphum, Staurastum gracile, Aulacoseira granulata, Cochlodinium polykrikoides, Ostreopsis sp., and Prorocentrum minimum).  
Co-Authors Abdul Haris PanaI Abdul Mun'im Thariq Abubakar Sidik Katili Adnan Malaha Ahmad Zainuri Ahmad Zainuri Andi Khairunnisa Salsabila Putri Ani M. Hasan Aprianingsih Umar Arpin Aryati Abdul Asep S. Abdurrahmat Asniawati Zainuddin Asniwati Zainuddin Astin Lukum Astuti, Mindy Eka Aydalin, Regina Valentina Budy Santosa Budy Santoso Chairunnisa J. Lamangantjo Chairunnisah J Lamangantjo Chairunnisah J. Lamangantjo Cicilia Selry Tanri Citron S Payu Daud Yusuf Devliyanti Halusa Dewi Wahyuni K. Baderan Djuna Lamondo Eka Zahra Solikahan Eman Rahim Eman Rahim Enisa Kobandaha Erfan AR. Lainjong Fahria Ningsi Adam Faisal Duengo Farid SM Febrianti Febrianti febriyanti febriyanti Fitryane Lihawa Frida Maryati Yusuf Hartono D Mamu Harun, Nur Risnawati HASAN, ANI M. Hasan, Marwan Hasim Hasim Hasim Hasim Hasim Herinda Mardin Heru Z Thalib Husain, Ilyas Ilyas Husain Isra, Muhammad Iswan Dunggio Jusna Ahmad La Nane Lamangantjo, Chairunnisa J. Lilan Dama Magfirahtul Jannah Margaretha Solang Marike Mahmud Marini Susanti Hamidun Masra Latjompoh Misnawaty Wantogia Moh. Heru Sulistyo P. Yusuf Moha, Siti Nurliana Mohamad Haikal K. Djafar Mohamad Ikbal Riski Danial Mohamad, Nurdin Muh. Nur Akbar Muhammad Isra Mustamin Ibrahim Mustaqimah, Nur Nandayani Ahmad Novri Youla Kandowangko Nur Mustaqimah Nur Rahmatiya H Suudi Nur Risnawati Harun Nur'ain Marton Angio Nurfadila Salam Nurinda Umadji Nurul Fajryani Usman Pinangsi Lalu Pipin Tutuda Pobela, Juliani Polamolo, Dwi Yuliana Pratama, M.Iqbal Liayong Rakhmat Jaya Lahay Ramli Utina Regina Valentina Aydalina Regina Valentine Aydalina Regitacahyanisauring Gita Rifka Sadapu Rika Wahyuni Rusti Annisa Rini Daud Supu Salihi, Irvan Abraham Sarini Pani Siti Ainun Mabuia SM, Farid Solang, Margareta Sri Anggriyanti Putri Bohoka Sri Layla Putri Ishak Sri Vanrovia Usman Sri Widyastuty Pikoli Sri Wulandari Sri Wulandari Srinianti U Daud Daud Sukirman Rahim Suma, Fani Syarifudin Rahim Tantri Rupu Thalib, Heru Z Torana, Melanie Uno, Wirnangsi D. Vivien Novariana Wantogia, Misnawaty Widya Rahmawaty Saman Widya Salandri Kisman Wirnangsi D. Uno Wirnangsi D. Uno Wirnangsi D.Uno Wirnangsih D. Uno Wiwin Kobi Yasni A. Patuti Yuliana Retnowati Yulianti Humokor Yulinda L. Ismail Zakaria Husain Zuliyanto Zakaria