10 articles in this issue
Muhammad Rafli, Reza Mega Wahyuni, Nilna Muna Zahiro, I Wayan Dasna
Pollution is a serious environmental problem. One of the causes of pollution is the presence of heavy metals. Besides heavy metals, there are plastics that cause serious problems in the environment because they are difficult to decompose. These two proble... see more
Dwi Rasy Mujiyanti, Dahlena Ariyani, Muna Lisa
Research on analysis of rice husk content of Siam Unus with various NaOH concentrations (1.0 M; 1.5 M; 2.0 M; 2.5 M; 3.0 M) has been done. This study aims to obtain data on the effect of variations in NaOH concentration on the purity of the silica extract... see more
I Dewa K Anom
Styrofoam waste is difficult to be decomposed by bacteria or microorganisms. Therefore it takes a long time to be decomposed naturally. Styrofoam waste, in general, is a big problem for the survival of living things on earth because there are quite a lot ... see more
Serly J. Sekewael
Determination of surface acidity on the natural and synthetic montmorillonite clays has been carried out using the acid-base titration method to count the number of bound acid sites per gram of clay. The total acidity of natural and synthetic montmorillon... see more
Jeanne Dewi Damayanti, Ririn Azmilia, Zul Ainun, Nur Amin R., M. Ilham Nurdin
Lycopene is a red pigment found in tamarillo with its function as an antioxidant that protects body cells from the negative effects of free radicals so that they do not trigger diseases, especially cancer and premature aging. This study was intended to im... see more
Abraham Mariwy, Julita B. Manuhutu, Defany Frans
This study examines the accumulation of metallic mercury by several types of plants in the traditional gold processing area in the village of Gogore, Buru district. The plants that were sampled in this study were guava, lempuyang gajah, and harendong bulu... see more
Budi Riza Putra, Manggar Arum Aristri, Eti Rohaeti, Wulan Tri Wahyuni
Cadmium is a toxic pollutant that is harmful to the environment and humans. The purpose of this research was to develop a method for cadmium(II) detection using differential pulse anodic stripping voltammetry (DPASV) using a glassy carbon electrode. The d... see more
Healthy Kainama, Hanoch J. Sohilait, Christian Jacob Souisa
Gastropods are the sources of protein for coastal communities in the Maluku islands. We conducted analysis quantitative and qualitative of protein in Nerita undata meat from Hasa Cape in Saparua Island. The percentage of protein was analyzed by the Kjelda... see more
Mirella Fonda Maahury, Veliyana Londong Allo
Aeroplysinin-1 is naturally found from marine sponges as an anti-bacterial compound. Computational calculation and molecular docking were performed for aeroplysinin. Aeroplysinin as an inhibitor has optimized in the gas phase using DFT with 6-31G(d) funct... see more
Budi mulyati, Riong Seulina Panjaitan
Karamunting plant (Rhodomyrtus tomentosa) is a traditional medicinal plant. The leaves, roots, stems, and fruits of Karamunting have been identified, and their biological activities are antioxidants, antibacterial, antidiabetic, anti-inflammatory, and ant... see more