Article Per Year (5 Year)
p-Index From 2019 - 2024
0.408
P-Index
This Author published in this journals
All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Riset Industri Hasil Hutan
IDA ROSANTI
Prodi Teknik Industri UNU Kaltim
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Veterinary

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
MONITORING FOREST AREA CHANGE USING QUICKBIRD SRI ENDAYANI; ANDREW STEFANO; FATHIAH; PURBAWATI; IDA ROSANTI
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 29 No. 2 (2022): BIOTROPIA Vol. 29 No. 2 Agustus 2022
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2022.29.2.1690

Abstract

A study was conducted to compare the urban forest management in three urban forests in Samarinda City. The application of GIS (Geographic Information System) is one of the alternatives to conduct a variety of processes such as: providing geographical information system, identifying the areas of urban forests in Samarinda, helping to plan the process of map digitalization and performing overlay process. The main method used for the data analysis process on the map was the overlay process data analysis technique. The research findings showed that: 1) the appointment of urban forests as the initial step of urban forest development needed more implementation from the government; 2) the urban forest determination needed more socialization to the owner of the urban forest and the public in 1992 and 2019; 3) the urban forests needed more management. There were some similarities and differences in the management of urban forests in the three study locations. The similarities among the three locations were that the three locations had already met the minimum standards of one urban forest location even though there was still one location outside of these three locations which did not meet the minimum standard. The differences were in managing the urban forests. These differences indicated that the urban forest policy was not fully implemented in Samarinda City.
Determination of the absorbility of natural dyes of secang wood (Caesalpinia sappan) and teak leaves (Tectona grandis L) in organic kenaf fiber industry Ida Rosanti; Ali Sadikin; Retno Prasetia
Jurnal Riset Industri Hasil Hutan Vol 14, No 2 (2022)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24111/jrihh.v14i2.6759

Abstract

Secang wood (Caesalpinia sappan) and teak leaf (Tectona grandis L) were used to colour organic kenaf fibers with highly intense colours. This study aims to determine or analyze the level of absorption of secang wood dyes and teak leaves on organic kenaf fibres. The method used is maceration extraction with 60% ethanol and aquades as solvents. The extracted dye was heated at various temperatures (40°C, 55°C, 70°C, dan 80°C) to get the best conditions. The measurement of dye absorption was carried out using the UV-Vis Spectrophotometry method with a maximum wavelength (λ) of 446 nm. The data obtained are represented in the form of delta absorbance and percent absorption. The results showed that the maximum absorption of secang wood dye was 0.031 at a heating temperature of 55°C using 60% ethanol as solvent, while the maximum absorption of teak leaf dye was 0.092 at a heating temperature of 40°C using 60% ethanol as solvent. Secang wood dye was extracted at a heating temperature of 70°C by using distilled water produced a maximum absorbance of 0.82, and teak leaf dye extracted at a temperature of 70°C by using distilled water produced a maximum absorbance of 0.422. Based on the t test, it was found that there was no significant effect in determining the adsorption capacity and the percentage absorption of the dyestuffs of secang wood and young teak leaves because the polarity of the solvent used was not much different, so that the dye did not change significantly at different temperatures.
Co-Authors Ali Sadikin Fathiah Mudinillah, Adam Prasetia, Retno Purbawati Sri Endayani