Citation
Siswadi S., . and Faridah E., . and Hertiani T, . Total flavonoid content of faloak (Sterculia quadrifida) bark in varieties of bark colour tree diameter and growth altitude. pp. 298-307. ISSN 0128-1283
Abstract
Sterculia quadrifida (Sterculiaceae) grows in Indonesia India Timor Leste and Australia. In East Nusa Tenggara province Indonesia particularly in Timor Island S. quadrifida is called faloak and its bark is used to treat hepatitis. This study aims to determine the correlation between total flavonoid content and varieties of bark colour tree diameter class and altitudes and to examine the interaction between tree diameter class and altitudes in terms of flavonoid content. Sterculia quadrifida barks were collected from four altitude strata of 300 300“600 600“900 and 900 m a.s.l. Each stratum of altitude consisted of three diameter classes of 15 15“30 and 30 cm. Bark colour was classified using Munsell colour chart. The powdered barks were macerated with 96 ethanol and evaporated to yield thick extracts. The total flavonoid content of each extract was measured by spectrophotometry. There were four dominant colour groups i.e. red brown yellow and orange. The highest total flavonoid content was found in the red (0.25) and yellow (0.25) barks. The results showed that the highest total flavonoid content was found in tree diameter of 15“30 cm with a total flavonoid of 0.22. The highest total flavonoid content (0.21) was observed in the barks from altitude range of 300 m a.s.l. There was a weak interaction between altitude and tree diameter on the extract yield and total flavonoid of S. quadrifida bark.
Download File
Full text available from:
Official URL: https://info.frim.gov.my/infocenter_applications/j...
|
Abstract
Sterculia quadrifida (Sterculiaceae) grows in Indonesia India Timor Leste and Australia. In East Nusa Tenggara province Indonesia particularly in Timor Island S. quadrifida is called faloak and its bark is used to treat hepatitis. This study aims to determine the correlation between total flavonoid content and varieties of bark colour tree diameter class and altitudes and to examine the interaction between tree diameter class and altitudes in terms of flavonoid content. Sterculia quadrifida barks were collected from four altitude strata of 300 300“600 600“900 and 900 m a.s.l. Each stratum of altitude consisted of three diameter classes of 15 15“30 and 30 cm. Bark colour was classified using Munsell colour chart. The powdered barks were macerated with 96 ethanol and evaporated to yield thick extracts. The total flavonoid content of each extract was measured by spectrophotometry. There were four dominant colour groups i.e. red brown yellow and orange. The highest total flavonoid content was found in the red (0.25) and yellow (0.25) barks. The results showed that the highest total flavonoid content was found in tree diameter of 15“30 cm with a total flavonoid of 0.22. The highest total flavonoid content (0.21) was observed in the barks from altitude range of 300 m a.s.l. There was a weak interaction between altitude and tree diameter on the extract yield and total flavonoid of S. quadrifida bark.
Additional Metadata
Item Type: | Article |
---|---|
AGROVOC Term: | Sterculia |
AGROVOC Term: | Sterculiaceae |
AGROVOC Term: | Extraction in chemical analysis |
AGROVOC Term: | Spectrophotometry |
AGROVOC Term: | Bark extracts |
AGROVOC Term: | Diameter |
AGROVOC Term: | Growth |
AGROVOC Term: | Altitude |
AGROVOC Term: | Colour |
AGROVOC Term: | Flavonoids |
Depositing User: | Mr. AFANDI ABDUL MALEK |
Last Modified: | 24 Apr 2025 00:55 |
URI: | http://webagris.upm.edu.my/id/eprint/10042 |
Actions (login required)
![]() |
View Item |