Ultrasonic-assisted extraction and Microwave-Assisted Extraction is an alternative extraction method for extracting natural compounds. Optimization of ultrasonic extraction and Microwave Extractions of Cempedak leaf aims to determine the optimal solvent concentration and extraction time based on determination of total flavonoid content and IC50 antioxidant activity. The study was conducted by v…
Ludwigia octovalvis is one of the plants that often used as traditional medicine. Previous researchers have been reported some bioactivity from the extract or compound isolated from this plant such as antidiabetic, cytotoxic, antioxidant and antibacterial. However, there are no study have been reported about isolated compound and antibacterial activity from the fruits of this plant. Therefore, …
Beriang plant (P. alternifolium) is one of species of the Theaceae family. This study aims to isolate and identify secondary metabolites contained in the n-hexane extract of the bark of Beriang (P. alternafolium) growing in Indralaya, South Sumatra. The secondary metabolite compound purification process was carried out by extracting 1.5 kg dry sample of P. alternifolium bark with n-hexane solve…
Modification of natural bentonite by exchanging Ca2+ cations to NH4+ has been studied. The modified material then used as a coagulation agent in way to reduce POME waste pollution. The material was characterized with FTIR and SEM instruments. The results of the FTIR analysis showed the modified bentonite undergo wavenumber shift at 3380 cm-1 to 3396 cm-1 which has sharper band shape, and the be…
Penyakit pneumonia dapat disebabkan oleh berbagai macam bakteri, misalnya bakteri Streptococcus pneumoniae dan Staphylococcus aureus. Alternatif lain yang dapat digunakan sebagai pengganti antibiotik yaitu dengan cara memanfaatkan bahan alami, misalnya buah mengkudu (M. citrifolia L.). Penelitian ini dilakukan untuk mengetahui aktivitas antibakteri ekstrak etanol buah mengkudu dan fraksinya ter…
Cataract Flower (Hippobroma longiflora) has used traditionally for cataract treatment which is related to the content of antioxidant compound. H. longiflora leaves was extracted by maceration method using solvents with increasing polarity (n-hexane, ethyl acetate and methanol). The each fraction was analyzed for total fenolic, flavonoid and steroid contents using photometric method. The antioxi…
Tembesu (Fagraea fragrans Roxb) has been reported to have antibacterial activity, anti inflammation, antifungal, antioxidant, antiage, anticancer, antiviral and antiflasmodial, but there have been no reported on isolating and antibacterial activity of alkaloid compound from the steam bark of this plant. Based on it, this research aimes to isolate alkaloid compound and determine the antibacteria…