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All Journal Jurnal Pendidikan Kimia Indonesia Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia Jurnal SOLMA JMM (Jurnal Masyarakat Mandiri) Agritechnology : Jurnal Teknologi Pertanian Jurnal Inovasi dan Teknologi Pembelajaran (JINOTEP) Kajian dan Riset Dalam Teknologi Pembelajaran Patria : Jurnal Pengabdian Kepada Masyarakat Jurnal Riset Pendidikan MIPA Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Mattawang: Jurnal Pengabdian Masyarakat Jurnal Akademika Kimia Jurnal Ilmu Pendidikan Indonesia Jurnal Akademika Kimia Jurnal Pendidikan MIPA Jurnal Abdimas Ilmiah Citra Bakti

Mery Napitupulu

Pendidikan Kimia FKIP Universitas Tadulako Palu Indonesi 94119

Author-ID : 4406772

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Articles

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Analysis of Cyanide Acid Content in Cassava (Manihot esculenta) Based on Storage Time Ria Lumbantobing; Mery Napitupulu; Minarni R. Jura
Jurnal Akademika Kimia Vol. 8 No. 3 (2019)
Publisher : Universitas Tadulako

Cassava is a tuber of cassava plants which is a source of carbohydrates that can be consumed as food and as snack foods such as chips. However, cassava and the leaves contain cyanide acid (HCN) which is dangerous for the human when consumed in excess. Cyanide acid reduction can be done by washing as well as immersion because of its volatile nature. The aim of this research is to investigate the difference of cyanide acid (HCN) content on peeled and unpeeled cassava with the variation of storage time 0, 2, 4, 6, and 8 days. A preliminary test was done to know the existence of cyanide acid (HCN) in cassava. Method analysis of cassava was titrated with the NH4CNS solution using the argentometric principle of the Volhard method. The results showed that cyanide acid (HCN) content in peeled cassava was higher than unpeeled cassava which was 3.9, 4.7, 5.2, 5.6, and 6.0% respectively for shelled cassava and 3.9, 4.6, 5.1, 5.5, and 5.9% respectively for unpeeled cassava.

Analysis of Macro Nutrient on Rono Fish (Xenopoecilus oophorus) Freshwater Delviana Melego; Mery Napitupulu; Daud K. Walanda
Jurnal Akademika Kimia Vol. 8 No. 4 (2019)
Publisher : Universitas Tadulako

Fish are assumed to have high nutritional value with mineral content, vitamins, fats, and proteins containing essential amino acids that are needed for growth and human intelligence. One type of them is rono fish (Xenopoecilus oophorus) freshwater which is an endemic fish that comes from lake Poso, Central Sulawesi and still found in traditional markets of Tentena city, but the local community is less interested in this type of fish and the lack of literature that informs about the nutritional content of rono fish. The research aims to determine the macronutrient content in rono fish. The nutrient content analyzed in fish was on carbohydrates, proteins, and fats by using the anthrone sulfate method for carbohydrate analysis, Kjeldahl method for protein, and for fat analysis using the soxhlet method. The results of the analysis obtained that macronutrient in freshwater rono fish was followed carbohydrate was 9.26%, the protein was 37.79% and fat was 11.92%.

Analysis of Vitamin C in Kecombrang (Etlingera elatior) Lis K. Djaledje; Mery Napitupulu; Siti Nuryanti
Jurnal Akademika Kimia Vol. 8 No. 4 (2019)
Publisher : Universitas Tadulako

Flower kecombrang contains nutrient that are beneficial to the community's nutritional improvement one of vitamin C is needed by the body and as a source of antioxidants. This study aims to determine the levels of vitamin C in flower buds and blooms. Analysis of vitamin C levels in the sample was performed by titration of the iodimetric method. The results of analysis, obtained levels of vitamin C in buds kecombrang flowers were 26.40 mg/100 g and the bloom was 44.26 mg/100 g. The data above showed that vitamin C levels in flower kecombrang increased based on the level of maturity.

Boraxs and Formalin Analysis in the Shumai Treated in Palu City Areeya Milehman; Mery Napitupulu
Jurnal Akademika Kimia Vol. 9 No. 2 (2020)
Publisher : Universitas Tadulako

This study aims to test and prove the presence of borax and formalin contamination in shumai samples sold in Palu City. A qualitative method with curcumin paper test; and quantitatively using the UV-Vis spectrophotometer method on a 550 nm wavelength, so that the borax content can be determined in the sample. From the results of this study as many as 5 shumai samples examined, all samples from 5 samples tested qualitatively positive were found before the quantitative analysis was carried out before the samples were tested qualitatively. Qualitative tests showed that some samples did not contain formaldehyde but positively contained borax so the quantitative test was only conducted to determine borax levels in shumai. The results stated that the lowest level was 0.0213 mg/g and the highest level was 0.0314 mg/g.

The Effect of PQ4R (Preview, Question, Read, Reflect, Recite, Review) Learning Method with Internet-Assisted on Learning Outcomes of Students SMA Labschool UNTAD Palu on Salt Hydrolysis Ersa W. Lakukua; Mery Napitupulu; Afadil Afadil
Jurnal Akademika Kimia Vol. 9 No. 1 (2020)
Publisher : Universitas Tadulako

This study aimed to describe the effect of PQ4R learning methods with internet-assisted on students’ learning outcomes of class XI SMA Labschool UNTAD Palu on salt hydrolysis material. The type of research was quasi-experimental with a nonrandomized pretest-posttest control group design. This study was conducted with two groups, namely the XI IPA class 1 as the experimental group (n = 21) and the XI IPA class 3 as a control group (n = 23). The testing of the research data used a two-party t-test statistical analysis. The results of data analysis obtained that the average of an experimental class was 63.19 with a standard deviation of 7.37 and a control class was 57.22 with a standard deviation of 8.19. The results of testing the hypothesis with the two-party t-test statistics obtained -ttable<tcount> +ttable (tcount 2.54 and ttable 1.68) with a significance level (α) = 0.05 and degrees of freedom (dk) = 35. Based on the results testing of the hypothesis, it can be concluded that H0 was rejected and H1 was accepted. This means that the PQ4R learning method with internet-assisted has a positive effect on the learning outcomes of students class XI SMA Labschool UNTAD Palu.

Application of CORE Learning Model with Molymod-Assisted on Hydrocarbon Material to Improve the Students’ Learning Outcomes Gleryl F. Novemly; Mery Napitupulu; Ijirana Ijirana
Jurnal Akademika Kimia Vol. 11 No. 1 (2022)
Publisher : Universitas Tadulako

This study aimed to describe the improvement of learning outcomes by applying the learning model of Connecting, Organizing, Reflecting, Extending (CORE) with molymod-assisted hydrocarbon material of class X students of SMA Labschool UNTAD Palu. This type of research was experimental designs with one group pretest-posttest design. This study used 2 classes, namely class XA as replication class 1 (n = 26) and class XB as replication class 2 (n = 27). The students' learning outcomes were affective, psychomotor, and cognitive aspects. In replication class 1, the value of student learning outcomes was 71.37, while in replication class 2 was 66.00. The data analysis results showed increased student learning outcomes after using the Molymod-assisted CORE learning model in both classes. So it can be concluded that applying the Molymod-assisted CORE learning model on hydrocarbon materials can improve student learning outcomes for class X SMA LABSCHOOL UNTAD Palu.

PERSEPSI PESERTA DIDIK TERHADAP PENERAPAN LMS SCHOOLOGY DALAM PEMBELAJARAN IPA SRI HASTUTI VIRGIANTI PULUKADANG; MERY NAPITUPULU; DAUD K WALANDA; AFADIL AFADIL
Jurnal Ilmu Pendidikan Indonesia Vol 8, No 3 (2020)
Publisher : Program Magister Pendidikan IPA, Program Pascasarjana Universitas Cenderawasih

The development of science and science and technology is always followed by the development of teachers and students in the field of education. Science and technology has a great influence on life and the environment. Students' understanding of science and its ability to apply it in life. Through this principle, students not only learn to listen to the teacher's explanation, but students can find out the real way of learning. The integration of technology, in this case the Schoology learning management system (LMS), is expected to help students understand science. This study aims to determine students' perceptions of the application of LMS Schoology in the seventh grade students of SMP Gamaliel Palu. The results of quantitative descriptive analysis showed that students gave a positive response to the progress of science by using Schoology.

The Extraction of Nickel from Morowali Laterite Ore with Nitric Acid I W. A. Wirawan; Daud K. Walanda; Mery Napitupulu
Jurnal Akademika Kimia Vol. 11 No. 2 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2022.v11.i2.pp91-95

Nickel extraction from Morowali laterite ore has been carried out with nitric acid as the solvent. This study aims to determine the effect of nitric acid concentration, temperature, and stirring time on nickel content in laterite ore originating from Morowali. Morowali laterite seeds were extracted using the leaching method using nitric acid as the solvent with various concentrations of 0.5, 1, and 2, temperatures of 30, 60, and 95, and stirring times of 3, 6, and 12. Taguchi analysis was used in this study to obtain the effect of the three parameters used. The results showed that the optimum conditions were obtained at a concentration of 2 molars nitric acid, a temperature of 95°C, and a stirring time of 12 hours, with a nickel content of 16.469 ppm and a nickel recovery percent of 3.88%.

Extraction of Nickel from Morowali Laterite Ore with Hydrochloric Acid (HCl) I Komang Jati Purnawan; Daud K. Walanda; Mery Napitupulu
Jurnal Akademika Kimia Vol. 11 No. 3 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2022.v11.i3.pp134-139

This study aims to determine the influence of temperature, leaching time, and the influence of hydrochloric acid concentration in the nickel extraction process, as well as to determine the optimum conditions of the laterite nickel extraction process using the Taguchi method which is influenced by hydrochloric acid concentration, temperature and leaching time. The laterite samples used came from the Bahodopi District, Morowali Regency, Central Sulawesi Province. Quantitative analysis using AAS (Atomic Absorption Spectrophotometer) with variables studied including acid concentrations of 0.5 M, 1 M, and 2 M, temperatures with levels of 30oC, 60oC, and 95oC, and leaching times of 3 hours, 6 hours, and 12 hours. The optimum conditions obtained from the results of the study were at a temperature of 95oC, a leaching time of 12 hours and a concentration of 2 M with the optimum absorbance obtained, namely 0.1635, the optimum concentration of 5.9693 mg /L with a percent of nickel recovery obtained of 1.41%.

PENGUATAN BUDAYA LITERASI EKOLOGIS DI SEKOLAH Nurasyah Dewi Napitupulu; Daud Karel Walanda; Mery Napitupulu; Ryka Marina Walanda
JMM (Jurnal Masyarakat Mandiri) Vol 6, No 6 (2022): Desember
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v6i6.10169

Abstrak: Tingkat literasi peserta didik di Indonesia masih berada pada kategori rendah. Pengabdian kepada masyarakat (PKM) dilakukan untuk menguatkan budaya literasi ekologis peserta didik di Sekolah Bala Keselamatan Palu terhadap 56 orang peserta didik baru. Penyuluhan dilakukan melalui ceramah, tanya jawab, dan simulasi menggunakan presentasi dan video tentang isu-isu fenomena ekologis dengan tujuan: (1) Membangun budaya literasi ekologis; dan (2) Membangun perilaku go green school. Hasil evaluasi melalui tanya jawab sepanjang penyuluhan menunjukkan rata-rata persentase “Membangun budaya Literasi Ekologis” sebesar 60,4% dan “Membangun perilaku dan go green school activity” sebesar 84,9%. Hasil evaluasi melalui observasi dan wawancara seminggu setelah penyuluhan menunjukkan adanya kreativitas kelompok “Sasisapo” melakukan proyek “perubahan iklim global” dengan merawat tanaman setiap hari seusai sekolah, menanam tanaman (bunga-bunga dan dua pohon akasia), dan bersih-bersih lingkungan sekolah setiap hari Sabtu. Diharapkan hasil PKM ini menjadi masukan terhadap guruguru dalam menginternalisasi nilai-nilai budaya literasi ekologis pada pembelajaran di kelas.Abstract: The literacy level of students in Indonesia is still in the low category. Community service (PKM) is carried out to strengthen the ecological literacy culture of students at the Palu Salvation Army School for 56 new students. Counseling is carried out through lectures, questions and answers, and simulations using presentations and videos on issues of ecological phenomena with the aim of: (1) Building a culture of ecological literacy; and (2) Building go green school behavior. The results of the evaluation through questions and answers during the extension showed that the average percentage of "Building an Ecological Literacy culture" was 60.4% and "Building behavior and going green school activity" was 84.9%. The results of the evaluation through observations and interviews a week after the extension showed the creativity of the "Saisapo" group in carrying out a "global climate change" project by taking care of plants every day after school, planting plants (flowers and two acacia trees), and cleaning the school environment every day. Saturday. It is hoped that the results of this PKM will become input for teachers in internalizing the cultural values of ecological literacy in classroom learning.

Co-Authors Afadil Alam Anshary Almahdali, Khafifah Anang Wahid M.Diah Anggraini Anggraini Anggraini, Windi Areeya Milehman Arwansyah Arwansyah Bau Ratu Budi Rahayu, Budi Cresna, Cresna Dasi, Alfina D. A. Daud Karel Walanda Delviana Melego Detris Poba Dwijogo, Wasis D Enar, Rohmala Ersa W. Lakukua Galib, Stefhanny Ginting, Dewi Gleryl F. Novemly Hajerina, Hajerina Hutagaol, Jhon I Komang Jati Purnawan I Nengah Kundera I W. A. Wirawan Ijirana Iriani, Fitri Irwan Irwan Jamaludin M Sakung Kesumasari, Ni Made Kusuma, I Gede Yoga Nata Leonardo Leonardo Lis K. Djaledje Lumbantobing, Ria M., Erni Madjid, Nurhidayah Abd. Marungkil Pasaribu Masriana Masriana, Masriana Mesakh, Eka Putra Minarni Rama Jura Minarni Rama Jura Miryam B. Kalase Muhammad Agus Muljanto MUHAMMAD ALI MUSTAMIN IDRIS Napitupulu, Nurasyah D Nurasyah Dewi Napitupulu Nurdin Rahman Nurhikma, Nurhikma Nuriadi, Nuriadi Parwati, Ni Kadek Fina Poba, Detris Podala, Katherina Pongenda, Rudy Christiyanto Punaji Setyosari Purnama Ningsih Putra, Iim E. Ratman Ratman Ratman Razni, Razni Reny, Reny Ria Lumbantobing Rita Lefrida Ryka Marina Walanda Setiawan, I Ketut Ardi Siang Tandi Gonggo Siti Fathonah Septianingsih Siti Nuryanti Sitti Rahmawati Situngkir, Risma U Solika, Nafikatus Sri Hastuti Virgianti Pulukadang Sri Mulyani Sabang Suciati, Indah Susilawati, Niluh Eka Tahril Taslima Tiara Maharani, Tiara Walanda, Richard Albert Walanda, Ryka M Walanda, Ryka M. Zarnila, Zarnila Zita L. Sarungallo

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