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All Journal Jurnal Farmasi Sains dan Komunitas Sains Natural: Journal of Biology and Chemistry Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Bakti Cendana: Jurnal Pengabdian Masyarakat Bioscientist : Jurnal Ilmiah Biologi Molekul: Jurnal Ilmiah Kimia Journal of The Indonesian Society of Integrated Chemistry
Taek, Maximus M.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Social Sciences

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Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid Baunsele, Anselmus Boy; Kopon, Aloisius Masan; Boelan, Erly Grizca; Leba, Maria A. U.; Komisia, Faderina; Tukan, Maria B.; Taek, Maximus M.; Tukan, Gerardus D.; Missa, Hildegardis; Siswanta, Dwi; Naat, Johnson N.; Rahayu, Rahayu
Molekul Vol 19 No 1 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.1.9443

Abstract

The textile industry in the world keeps increasing, but it harms environmental pollution caused by textile dye waste. Synthetic dyes contain carcinogenic and mutagenic ingredients that can demage the environment and aquatic biota. The alternative to handling dye pollution with a low-cost method is adsorption using nitric acid-activated coconut fiber. Coconut fiber was an abundant agricultural waste and economical, and it had an active site that contained many compounds such as cellulose, lignin, pyroligneous acid, and tannin molecules. This study used the UV-Vis Spectrophotometer analysis method to determine the effect of pH, contact time, and coconut fiber on the adsorption capacity of methylene blue. The result showed that the optimal conditions for adsorption were a pH of 5, a contact time of 75 minutes, and a percentage adsorption of the variation of contact time of 99.628%. The adsorption study was according to a pseudo-second-order reaction with a constant reaction rate of 0.050 g mg-1 minute-1. The maximum adsorption capacity was 2 mg g-1, with the percentage of methylene blue adsorbed at 99.84%. Adsorption occurs chemically with an energy of 35.4 kJ mol-1, so it can be determined that it occurs with a monolayer mechanism.
Pigmen Umbi Ubi Jalar Ungu dan Rimpang Kunyit: Indikator Ramah Lingkungan dan Murah untuk Eksperimen Titrasi Asam-Basa Leba, Maria Aloisia Uron; Mau, Sisilia Daeng Bakka; Boelan, Erly Grizca; Taek, Maximus M.; Ruas, Juvencio de Castro; Lawung, Yustina D.; Ruas, Adilson de Castro; Kopon, Aloisius Masan; Ruas, Noemia A.
Journal of The Indonesian Society of Integrated Chemistry Vol. 15 No. 2 (2023): Journal of The Indonesian Society of Integrated Chemistry
Publisher : Pendidikan Kimia FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jisic.v15i2.28648

Abstract

[Pigments of Purple Sweet Potato and Turmeric Rhizome: Eco-Friendly and Cheap Indicators for Acid-Base Titration Experiment] Tujuan dari penelitian ini adalah mengkaji karakter pigmen umbi ubi jalar ungu (PUUJU) dan pigmen rimpang kunyit (PRK) pada larutan uji dan penggunaannya sebagai indikator titrasi asam basa dibandingkan dengan indikator fenolftalein. PRK diekstraksi dengan pelarut etanol sedangkan PUUJU diekstraksi dengan pelarut etanol dalam suasana asam. PUUJU dan PRK diuji karakter perubahan warnanya dan digunakan sebagai indikator titrasi HCl-NaOH dan CH3COOH-NaOH. Hasil penelitian menunjukkan PUUJU berwarna merah pada pH 1, pink pada pH 2-6, ungu pada pH 7, biru pada pH 8-9, hijau pada pH 10-11 dan kuning pada pH 12-14. PRK menunjukkan warna kuning pada pH 1-7, merah bata pudar pada pH 8 dan semakin pekat seiring naiknya nilai pH larutan. Kedua pigmen ini mampu menunjukkan perubahan warna yang jelas pada titik akhir titrasi layaknya indikator fenolftalien. Diperoleh konsentrasi HCl pada titrasi menggunakan indikator PP, PUUJU dan PRK berturut-turut adalah 0,1031 M, 0,1045 M dan 0,1025 M sedangkan konsentrasi CH3COOH berturut-turut adalah 0,0876 M, 0,0869 M dan 0,0853 M. Berdasarkan data-data ini, PUUJU dan PRK dapat digunakan sebagai indikator titrasi HCl-NaOH dan CH3COOOH-NaOH dalam praktikum kimia di kelas. Kata kunci/keyword: Volumetri, pigmen alami, ubi jalar ungu, kunyit, volumetry, natural pigment, purple sweet potato, turmeric rhizome.
Penguatan Kapasitas Pengelolaan BUMDes Di Desa Pariti, Kecamatan Sulamu Kabupaten Kupang-NTT Baunsele, Anselmus Boy; Boelan, Erly G.; Tukan, Gerardus Diri; Taek, Maximus M.; Amaral, Maria Agustin Lopes; Missa, Hildegardis; Sooai, Adri Gabriel; Sinlae, Alfry A. J.; Ratumakin, Paulus A. K. L.; Ketmoen, Adrianus
Bakti Cendana Vol 6 No 1 (2023): Bakti Cendana: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/bc.6.1.2023.37-48

Abstract

Badan Usaha Milik Desa (BUMDes) merupakan suatu badan usaha berbadan hukum, yang bertujuan untuk dapat meningkatkan perekonomian desa khususnya untuk peningkatan kesejahteraan masyarakat. Kegiatan penguatan kapasitas pengelolaan BUMDes dan sharing pengalaman pengelolaannya dalam kegiatan pengabdian pada masyarakat ini, bertujuan untuk dapat memberikan pengetahuan dan pengalaman baru bagi masyarakat. Kegiatan ini dilaksanakan di Desa Pariti, Kecamatan Sulamu, Kabupaten Kupang. Kegiatan ini diikuti oleh 20 oang peserta diantaranya Pemerintah Desa, pengurus BUMDes Gempar dan tokoh masyarakat. Metode pelaksanaan berupa sosialisasi melalui ceramah dan diskusi, sharing pengalaman dengan Kepala Desa Hadakewa serta hasil tes kemampuan (pre test dan post test). Kesimpulan dari hasil kegiatan ini yaitu terdapat peningkatan kemampuan terhadap substansi dan sistem tata kelola BUMDes. Kedepannya kegiatan ini dapat dilanjutkan dengan menghadirkan narasumber-narasumber yang telah sukses mengelola BUMDes
The Effect of Solvent Types on The Antibacterial and Cytotoxic Activity of Lino Bark Extract Landi Pote, Lodowik; Taek, Maximus M.; Nadut, Anggelinus; Latumakulita, Gertreda
Sains Natural: Journal of Biology and Chemistry Vol. 15 No. 3 (2025): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v15i3.825

Abstract

The G. koordersiana Burret plant, especially its bark, is used by the Sumba community to treat wounds, ulcers, and liver. This study aims to determine the effect of solvent types on the antibacterial and cytotoxic activity of G. koordersiana Burret extract. The research methods used were maceration method, antibacterial test, and cytotoxic test of G. koordersiana Burret bark extract. The results showed that the yield of ethanol, methanol, and n-hexane extracts were 42.15%; 41.65%; and 0.62%, respectively. Ethanol and methanol extracts had antibacterial activity against E. coli and S. aureus bacteria, while n-hexane extract did not show antibacterial activity against both bacteria. Cytotoxic tests showed that the LC50 values ​​of ethanol, methanol, and n-hexane extracts were 61.35 ppm; 758.58 ppm; and 2,494,181.19 ppm, respectively. Ethanol and methanol extracts had antibacterial activity and were toxic, while n-hexane extract did not show antibacterial activity and was not toxic. The antibacterial and cytotoxic activities of ethanol and methanol extracts showed the presence of secondary metabolite compounds of the alkaloid, phenolic, flavonoid, tannin, triterpenoid, and saponin groups, while n-hexane extract contained triterpenoid compounds that had no inhibitory power against bacteria or cytotoxic activity.
The Effect of Ethanol Extract of Marsilea crenata Presl. Leaves on Rotenone-Induced Zebrafish Locomotor Activity Ma'arif, Burhan; Muslikh, Faisal Akhmal; Fihuda, Destiya Argo Pamuji; Khotimah, Husnul; Taek, Maximus M.; Agil, Mangestuti
Jurnal Farmasi Sains dan Komunitas (Journal of Pharmaceutical Sciences and Community) Vol 19, No 2 (2022)
Publisher : Sanata Dharma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.717 KB) | DOI: 10.24071/jpsc.004576

Abstract

Neurodegenerative diseases are mostly experienced by postmenopausal women and are often caused by estrogen deficiency, so it is necessary to replace the hormone estrogen in the form of phytoestrogens. One of the plants that contain phytoestrogens is Marsilea crenata. The objective of this study is to see if giving rotenone-induced zebrafish a 96% ethanol extract of M. crenata leaves increases locomotor activity. This research was conducted by inducing 5 µg/L rotenone as a compound that will interfere with the locomotor activity of zebrafish. Next, treatment was given with 96% ethanol extract of clover in each group with a dose of 2.5; 5; 10; and 20 mg/mL to determine the effect of the extract on increasing locomotor activity of rotenone-induced zebrafish. Observations were made by looking at the quantity of zebrafish swimming every five minutes until day 28. The treatment of 96% ethanol extract of M. crenata leaves could significantly increase zebrafish motility at the optimum dose of 2.5 mg/mL, because every week the zebrafish locomotor activity increased compared to the negative control. M. crenata leaves extract is proven to prevent neurodegenerative diseases. However, further research needs to be done on the degenerative effects of rotenone every week.
Aktivitas Afrodisiak in Vivo Ekstrak Etanol 70% Akar Lelak (Uvaria rufa Blume.) Pada Mencit (Mus musculus) Jantan Taek, Maximus M.; Muslikh, Faisal Akhmal; Maulina, Novia; Sawjana, Oashiva H.; Azzahra, Azizah; Aszari, Efendi H.; Prameswari, Fadila A.; Ma’arif, Burhan
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13025

Abstract

Sexual arousal is an important aspect to achieve a harmonious sex life, but often disorders in normal sexual function disrupt the harmony of household relationships. One alternative natural ingredient that has the potential as an aphrodisiac agent is Lelak (Uvaria rufa) which is traditionally used by the people of East Nusa Tenggara (NTT), Indonesia, to overcome sexual dysfunction in men. This study aims to evaluate the safety and effectiveness of 70% ethanol extract of Uvaria rufa roots in vivo. This study is an experimental study to test the effectiveness of 70% ethanol extract of Uvaria rufa roots in vivo. This study was conducted with an initial stage, namely 70% ethanol extract of Uvaria rufa roots obtained through maceration, then the aphrodisiac activity was measured through the parameters of the number of leydig cells and the weight of the testes of male mice (Mus musculus).The results showed that the administration of the extract with an LD50 value of 2108 μg/ml which is included in the Relatively Harmless category, while group P2 with a dose of 0.85 mg/20g BB/day was stated as the optimal dose (p<0.05 against the negative control) for aphrodisiac activity in measuring testicular weight and the number of Leydig cells. Therefore, administration of 70% ethanol extract of Uvaria rufa roots at a dose of 0.85 mg/20g BW/day is the optimal dose for aphrodisiac activity.
Physicochemical and Functional Characteristics of Analog Rice Made from Local Cassava and Red Kidney Bean Lalong, Paulus Risan Funan; Naben, Maria Novalina; Soru, Joanivita P.G.; Lengur, Eufrasia R.A.; Taek, Maximus M.
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.846-857

Abstract

Nuabosi cassavas and Inerie red kidney beans are local foods from East Nusa Tenggara whose processing is relatively limited, but they have the potential to be developed into analog rice. This study aims to determine the effects of various compositions of Nuabosi cassava flour and Inerie red kidney bean flour on the characteristics of the produced analog rice. The procedure was conducted in three main stages: the preparation of cassava flour and red beans, formulation and production, and analysis. Various compositions of Nuabosi cassavas flour and Inerie red kidney beans were used: 98:0 (A); 88:10 (B); 83:15 (C); 78:20 (D); 73:25 (E). The data were analyzed by ANOVA, followed by DMRT at a 5% significance level. The results of the study showed, analog rice sample D (78% cassavas flour: 20% red kidney beans flour) has the best physicochemical and antioxidant activity characteristics of all samples. Furthermore, the sensory analysis results showed that most panelists had started to like the aroma, taste, and texture of analog rice made from 78% cassavas flour and 20% red kidney beans flour. Analog rice made from Nuabosi cassavas and Inerie red kidney beans has the potential to be developed as a functional food. Keywords: Kriging interpolation; MSFI; paddy field; soil fertility index, soil mapping.
Co-Authors Adri Gabriel Sooai Adrianus Ketmoen Alfry Aristo Jansen Sinlae Anggelinus Nadut Anselmus Boy Baunsele Aszari, Efendi H. Azzahra, Azizah Boelan, Erly G. Dwi Siswanta Erly Grizca Boelan Faderina Komisia Faisal Akhmal Muslikh Fihuda, Destiya Argo Pamuji Gerardus Diri Tukan Gertreda Latumakulita Hildegardis Missa Husnul Khotimah Kopon, Aloisius Masan Lalong, Paulus Risan F. Landi Pote, Lodowik Leba, Maria A. U. Lengur, Eufrasia R.A. Ma'arif, Burhan Ma’arif, Burhan Mangestuti Agil Maria Aloisia Uron Leba Maria Augustin Lopes Amaral Maria Benedikta Tukan Naat, Johnson N. Naben, Maria Novalina Novia Maulina Prameswari, Fadila A. Rahayu Rahayu Ratumakin, Paulus A. K. L. Ruas, Adilson de Castro Ruas, Juvencio de Castro Ruas, Noemia A. Sawjana, Oashiva H. Sisilia Daeng Bakka Mau Soru, Joanivita P.G. Tukan, Gerardus D. Yustina Dwisofiani Lawung