A new xanthone, yahyaxanthone (1), was isolated from Garcinia rigida leaves. Cytotoxicity evaluat... more A new xanthone, yahyaxanthone (1), was isolated from Garcinia rigida leaves. Cytotoxicity evaluation showed that 1 was inhibitory to L1210 cell, with an IC 50 value 4.08 μg/ml.
Two new xanthons, musaxanthone (1) and asmaxanthone (2) were isolated from the leaves of Garcinia... more Two new xanthons, musaxanthone (1) and asmaxanthone (2) were isolated from the leaves of Garcinia rigida. The structures were determined by means of spectroscopic analysis.
From the stem bark of Garcinia benthami a new benzophenone, named Salimbenzophenone, was isolated... more From the stem bark of Garcinia benthami a new benzophenone, named Salimbenzophenone, was isolated. The structure was determined by means of spectroscopic analysis.
One new alkaloid; (+)-N-(2-hydroxypropyl)lindcarpine (1), together with four known aporphine alka... more One new alkaloid; (+)-N-(2-hydroxypropyl)lindcarpine (1), together with four known aporphine alkaloids, (+)-boldine (2) (+)-norboldine (3), (+)-lindcarpine (4) and (+)methyllindcarpine (5) were isolated from the stem bark of Actinodaphne pruinosa Nees (Lauraceae). (+)-N-(2-Hydroxypropyl)lindcarpine (1) exhibited cytotoxic activity against P-388 murine leukemia cells with an IC 50 value of 3.9 μg/mL. Structural elucidation of all OPEN ACCESS Molecules 2009, 14 2851
A novel polyisoprenyl benzophenone derivative named eugeniaphenone (1) was isolated from the stem... more A novel polyisoprenyl benzophenone derivative named eugeniaphenone (1) was isolated from the stem bark of Garcinia eugeniaefolia Wall. Its structure was elucidated by spectroscopic methods, including 1D and 2D NMR techniques, and confirmed by single-crystal X-ray diffraction analysis. It is the first example in which an isoprenyl unit formed a cyclobutane-containing side chain in the polyisoprenyl benzophenone derivatives.
This report describes service scheme and some significant weak points for current solid waste man... more This report describes service scheme and some significant weak points for current solid waste management. The study area covers big cities in Java where population are concentrated, representing high quantity of solid waste which was pressing problems in most urbanized cities. The service management was administered by community and local government agency. Community and local government based services were accounted respectively for 10 -80 % and 20 -90 % of the total weight of waste. High proportion of community service did not truly represent community participation for clean and healthy environment since inappropriate handling was led to pollution. Inclusion of waste picker in the management scheme who reduces total weight of less than 10 % was insufficient in reduction of waste disposal. However, they have to be considered for existence since they live mainly from the sales of recycled materials. In the near future, socio-behavioral improvements need to be prioritized in these areas instead of pressing technological approach.
A new xanthone, yahyaxanthone (1), was isolated from Garcinia rigida leaves. Cytotoxicity evaluat... more A new xanthone, yahyaxanthone (1), was isolated from Garcinia rigida leaves. Cytotoxicity evaluation showed that 1 was inhibitory to L1210 cell, with an IC 50 value 4.08 μg/ml.
Two new xanthons, musaxanthone (1) and asmaxanthone (2) were isolated from the leaves of Garcinia... more Two new xanthons, musaxanthone (1) and asmaxanthone (2) were isolated from the leaves of Garcinia rigida. The structures were determined by means of spectroscopic analysis.
From the stem bark of Garcinia benthami a new benzophenone, named Salimbenzophenone, was isolated... more From the stem bark of Garcinia benthami a new benzophenone, named Salimbenzophenone, was isolated. The structure was determined by means of spectroscopic analysis.
One new alkaloid; (+)-N-(2-hydroxypropyl)lindcarpine (1), together with four known aporphine alka... more One new alkaloid; (+)-N-(2-hydroxypropyl)lindcarpine (1), together with four known aporphine alkaloids, (+)-boldine (2) (+)-norboldine (3), (+)-lindcarpine (4) and (+)methyllindcarpine (5) were isolated from the stem bark of Actinodaphne pruinosa Nees (Lauraceae). (+)-N-(2-Hydroxypropyl)lindcarpine (1) exhibited cytotoxic activity against P-388 murine leukemia cells with an IC 50 value of 3.9 μg/mL. Structural elucidation of all OPEN ACCESS Molecules 2009, 14 2851
A novel polyisoprenyl benzophenone derivative named eugeniaphenone (1) was isolated from the stem... more A novel polyisoprenyl benzophenone derivative named eugeniaphenone (1) was isolated from the stem bark of Garcinia eugeniaefolia Wall. Its structure was elucidated by spectroscopic methods, including 1D and 2D NMR techniques, and confirmed by single-crystal X-ray diffraction analysis. It is the first example in which an isoprenyl unit formed a cyclobutane-containing side chain in the polyisoprenyl benzophenone derivatives.
This report describes service scheme and some significant weak points for current solid waste man... more This report describes service scheme and some significant weak points for current solid waste management. The study area covers big cities in Java where population are concentrated, representing high quantity of solid waste which was pressing problems in most urbanized cities. The service management was administered by community and local government agency. Community and local government based services were accounted respectively for 10 -80 % and 20 -90 % of the total weight of waste. High proportion of community service did not truly represent community participation for clean and healthy environment since inappropriate handling was led to pollution. Inclusion of waste picker in the management scheme who reduces total weight of less than 10 % was insufficient in reduction of waste disposal. However, they have to be considered for existence since they live mainly from the sales of recycled materials. In the near future, socio-behavioral improvements need to be prioritized in these areas instead of pressing technological approach.
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