Isolation and identification of secondary metabolites from CH2Cl2 extract of the leaves of Artocarpus fretessi Hassk plant had been performed. Separation techniques used consisted of extraction, fractionation, and purification. The classes of compounds obtained were tested and elucidated based on UV and IR spectroscopy data. Two compounds obtained were 2âarylbenzofuran and stilbene.Keyword : Artocarpus fretessi Hassk, 2âarylbenzofuran, stilbene
Plants gotu kola (Centella Asiatica L .Urban) is a wild plant that efficacious as remedies traditional cure disease tuberculosis (TB).TB is disease contagious infection caused by bacteria mycobacterium tuberculosis. Research aims to understand the ability extract methanol leaves gotu kola red and leaves gotu kola green and determines the concentration optimal extract methanol leaves gotu kola red and leaves gotu kola green and to know the comparison between extract methanol leaves gotu kola red with an extract methanol leaves gotu kola green in inhibits the activity of mycobacterium tuberculosis.Extraction done with the methods maceration use methanol and continued with evaporation until obtained extract viscous .Testing antibacterial activity done in a microscopic observation drug susceptibility ( mods ) use plate petri dish 24 hole with the variation of concentration ie 20%,40%, 60%, 80% and 100%.The results of testing show that extracts methanol leaves gotu kola red and leaves gotu kola green positive capable of inhibiting the growth of bacteria mycobacterium tuberculosis with inhibition optimal in concentration 80 % and 100 % characterized by the absence of growth bacteria colonies which are (-) or 0 %.Extract methanol leaves gotu kola green capable of inhibiting the growth of bacteria mycobacterium tuberculosis better than extract methanol leaves gotu kola red seen in concentration 40% and 60%.
Isolation and identification of secondary metabolites from EtOac extract of the root bark of Kleinhovia hospita Linn. plant had been performed. Separation techniques used consisted of extraction, fractionation, and purification. The compounds obtained were tested and elucidated based on UV, IR, and NMR spectroscopy data. A compound obtained was 4-hydroxy cinnamamide.
Abstract: Sand sea cucumber (Holothuria scabra) is one type of marine invertebrates with family Holothuriidae and is a member of Enchinodermata animals. Types of animals have been used as rawÂ materials in traditional medicine. The aims of this reseach are to isolate the bioactive compounds contained in the ethanol extract of sand sea cucumbers and to know its major bioactivity. This research conducted in several methods namely extraction, fractionation, identification using thin layer chromatography (TLC) and qualitative test to determine secondary metabolites, as well as the characterization by FTIR. Results obtained from the isolation is a pure isolate by weight of 0.0203 grams of yellowish white paste. Purification was performed using three systems eluent as well as FTIR spectroscopy. The results showed that the compounds in pure isolates are alkaloids. Viscous extract and pure isolates subsequently tested its antibacterial test disc diffusion method using bacteria Salmonella thypi and Staphylococcus aureus. The results showed that the extract activity of the bacteria Salmonella thypi and Staphylococcus aureus into the strong category with optimum diameter of clear zone respectively 11.50 mm and 12.30 mm.Â Keyword: Bioaktive Compound, Disc Diffusion, Isolation, Sand Sea Cucumber (Holothuria scabra).
Since ancient times the people of Indonesia have known, and using nutritious plant as one of the efforts in the prevention of health problems. Plants belonging to the family Lauraceae is one of a group of plants commonly used by communities as traditional medicine, one of which is Avocado (Persea americana Mill.) Especially in the seeds, which contain secondary metabolites, namely polyphenols, tannins, flavonoids, triterpenoids, quinone, monoterpenoid and seskuiterpenoid and saponins. This study aims to identify the secondary metabolites contained in the seeds of avocado (Persea americana Mill.) And determine the toxicity of extracts and pure compounds using Brine Shrimp Lethality Test (BSLT). Avocado seed solvent extracted using ethyl acetate and the extract obtained was tested group and toxicity testing. The results showed that the ethyl acetate extract of avocado seeds contain phytochemicals based on test results ofÂ secondary metabolites, the flavonoids, alkaloids and steroids. Avocado seed solvent extracted using ethyl acetate and the extract obtained was tested group and toxicity testing. The results showed that the ethyl acetate extract of avocado seeds contain phytochemicals based on test results of secondary metabolites, the flavonoids, alkaloids and steroids.
Centella (Centella asiatica L. Urb) is one of the wild plants which are found in Indonesia and used by the community as a medicine. This study aims to isolate the kind of compound contained in n-hexane fraction centella asiatica leaf and to determine the optimal concentration of bioactive compounds gotu kola leaves in inhibiting the growth of bacteria Mycobacterium tuberculosis. centella asiatica leafÂ methanol extract obtained by maceration using methanol, then evaporated with a rotary evaporator. extract is then partitioned with n-hexane. n-hexane fraction obtained is evaporated until thick and then proceed to the stage fractionation, purification and identification with phytochemical test, analysis of UV-VIS spectroscopy and FTIR. isolated compounds were then tested antibacterial bioactivity using MODS. the results showed the compound n-hexane fraction contained in centella asiatica leaves are compound alkaloids. Antibacterial test results bioactive compounds of centella asiatica leaf can inhibit the growth of bacteria Mycobacterium tuberculosis optimally at a concentration of 60%, 80% and 100%, which is characterized by the absence of bacterial growth.
Isolation and identification of secondary metabolites from EtOac extract of the root bark of Kleinhovia hospita Linn. plant had been performed. Separation techniques used consisted of extraction, fractionation, and purification. The compounds obtained were tested and elucidated based on UV, IR, and NMR spectroscopy data. Â A compound obtained was geranil-1â,3â-dioxo-para-chresol.
Fly ash coal has been used as adsorbents in reduction of pollutant parameters in the wastewater. Fly ash coal is a coal combustion residue in the form of fine particles and an inorganic material that is being developed potential for mineral adsorbent, so as to reduce environmental pollution. Activation of fly ash coal carried by soaking in solution H2SO4 1 M, then heated at a temperature of 450oC. The method used is a separate component that is specific adsorption of the fluid to the surface of solids. This study aims to determine how the effectiveness of fly ash Â coal as adsorbent in the lower levels of COD and BOD effluent Biochemistry laboratory at the State Islamic University of Alauddin Makassar. The results showed that the fly ash coal can be used to reduce the content of COD and BOD. COD and BOD levels before it is contacted with fly ash coal in a row 92 414 mg/L and 24 255 mg/L. After contacted with fly ash coal in optimum condition weighs 1.5 g and 90 rpm COD decreased to 33 005 mg/L and 32 062 mg/L, whereas at 2 g and 90 rpm BOD decreased to 17 325 mg/L and 10,395 mg/L.
Bitti wood (Vitex cofassus) is one of the plants in Verbenaceae family and known by the people of South Sulawesi as the building material. The aims of this research Â is to identify and characterize Â the anticancer bioactive compound in ethanol extract of vortex Bitti wood (Vitex cofassus) and to determine the bioactivity value. This research uses extraction and fraction method, identification uses thin layer chromatography (TLC) and phytochemical test to know metabolism secunder and characterization with FTIR. The result from isolation shows that the amorf shape with 18 mg has white and yellow colour. The purification is conduted by using spectroscopy test FTIR. The result shows that the crystal has flavonoids compound which is solid with phytochemical test like positive product by using FeCl3 5%, NaOH 10% and H2SO4 P. Thick extract, fraction combination and amorf continued with toxicity test with the animal test Artemia salina Leach it uses Brine Shrimp Lethality test (BST) method. LC50 value which is gotten the three samples is thick extract 29,51 ppm, combination fraction 169,82 ppm and amorf 562,34 ppm.
Using the fuel oil is the basic necessary in the world now. But, the raw material cannot be updated.Â To ensure the availability of the fuel oil so, the newest of alternative energy is explored it. One of the ways is biodiesel which made from vegetable oil. In this research is resulted from the transesterification reaction between candlenut oil and methanol by utilizing ultrasonic equipment. This research has passed some phases, they are the determining of acid number in oil then continued by creating biodiesel from ultrasonic wave 47 kHz. Identification of FTIR and GCMS are two methods which used to analyze the component compound in biodiesel product. The conversion number that be gotten from FAME with reaction of variation time 30, 40 and 50 in succession 0,037%, 0,029% and 0,018%. The result analysis of FTIR shows some of functional groups which are special from biodiesel. While the result of GCMS analysis is known that there are 5 component compounds in biodiesel namely ester methyl palmitic acid, ester methyl olead, stearata ester methyl, linoleic ester methyl and elaidic ester methyl.