Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Penelitian Hutan Tanaman Indonesian Journal of Chemistry Journal of Sylva Indonesiana 3BIO: Journal of Biological Science, Technology and Management
Tien Lastini
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Immunology & microbiology Neuroscience

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
TIPOLOGI DESA BERDASARKAN VARIABEL PENCIRI HUTAN RAKYAT Hardjanto, Hardjanto; Purnomo, Herry; Lastini, Tien; Suhendang, Endang; Jaya, I Nengah Surati
Jurnal Penelitian Hutan Tanaman Vol 8, No 3 (2011): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Peningkatan Produktivitas Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Metode Survei Kayu Rakyat Berdasarkan Karakteristik Sosial Ekonomi dan Biofisik Kawasan: Studi Kasus di Kabupaten Bogor (Survey Method for Timber Stand of Private Forest based on Socio-economics and Biophysical Characteristics: a case study in Bogor Dis Tien Lastini; Endang Suhendang; I Nengah Surati Jaya
Jurnal Manajemen Hutan Tropika Vol. 12 No. 1 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (203.837 KB)

Abstract

The objective of this research is to determine the appropriate survey method for timber stand of private forest, based on its important characteristics. There were three methods used in this research, namely, method according to basic data i.e social-economics and biophysic data; method based on image, approached by vegetation transformacy using NDVI; and method based on integration of basic data and image. The result showed that basic data method is the best method for stratification of the village (desa), as a primary sampling unit of the private forest population (district). The second ones is basic data and image-integration method and last ones is image method.Keywords : basic data, coefficient of variation, image, NDVI, private forest, survey method, timber.
Estimation Model of Ramin (Gonystylus bancanus) Standing Stock in Peat Swamp Forest: Case Study in Sumatra and Kalimantan Samsuri, Samsuri; Jaya, I Nengah Surati; Lastini, Tien; Purnama, Edwin Setia
Journal of Sylva Indonesiana Vol. 1 No. 01 (2018): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.674 KB) | DOI: 10.32734/jsi.v1i01.422

Abstract

Multiple sampling technique was applied to estimate ramin (Gonystylus bancanus) standing stock in peat swamp forest by combining imagery analysis (phase I) and field measurement (phase II). The objectives of this research were to obtain (1) estimation model of stand volume, (2) estimation model of G. bancanus standing stock, and (3) volume of standing stock of G. bancanus in Sumatera and Kalimantan peat swamp forests. The research was conducted in peat swamp forest of Sumatera and Kalimantan Island. ALOS AVNIR image interpretation was completed to obtain crown density and used as independent variable for developing stand volume model. Cluster sampling was used to obtain field data from circle sample plot of 0.1 ha and square sample plot of 0.25 ha. Spatial analysis was conducted to map and calculate standing stock of G. bancanus for Sumatera and Kalimantan Island. Estimation model of stand volume was V bf = 0.1851 C field1.05234 (R 2 =0.62) for Sumatera peat swamp forest and V bf = 3.1163 e 0.041 Cfield (R 2 = 0.62) for Kalimantan peat swamp forest, respectively. We estimated that standing stock of G. bancanus of peat swamp forest in Sumatra and Kalimantan was 5% and 2.3% of the total stand volume, respectively. Base on both the estimation models, standing stock of G. bancanus in Sumatera peat swamp forest was 15,351,063 m 3 and in Kalimantan peat swamp forest was 6,004,874 m 3 .
Relationship between Waste Cover Area with Physical and Chemical Characteristics of Mangrove Ecosystem in Pulau Dua Nature Reserve, Serang, Banten Pratama, Farros Hilmi; Suwandhi, Ichsan; Lastini, Tien
3BIO: Journal of Biological Science, Technology and Management Vol. 7 No. 2 (2025)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2025.7.2.5

Abstract

Pulau Dua Nature Reserve has undergone significant changes to its land, affecting its physical and chemical properties. Additionally, the increasing problem of scattered plastic waste raises concerns about its negative impact on the ecosystem. This study aims to analyze the physical and chemical characteristics of Pulau Dua Nature Reserve and examine the relationship between the proportion of plastic waste cover area and environmental parameters. Microclimate, soil, and plastic waste proportion area data, especially plastic, were collected at 34 points using systematic random sampling, while water salinity was measured using accidental sampling because the pools for measuring salinity were not spread throughout the research area. A comparative analysis based on literature review and previous studies with mangrove ecosystems indicates that Pulau Dua’s mangrove vegetation is under threat from various environmental factors. Among these, the proportion of plastic waste cover area has the strongest correlation as moderate positive correlation with bulk density in Pearson Correlation Matrix. Independent Sample T-test comparing plastic waste cover area proportion based on bulk density class confirms that class 4 significantly affects bulk density. In conclusion, several physical and chemical parameters in Pulau Dua Nature Reserve do not align with optimal conditions for mangrove vegetation. The most related factors to plastic waste cover area proportion are bulk density because the indication is that areas covered with plastic waste are areas that are frequently passed by humans, thus increasing the bulk density of the soil. Value of bulk density will significantly different when proportion of plastic waste cover more than 2.5% based on Independent Sample T-test.
The Total Alkaloid Content, Tyrosinase Inhibitory Activity, and Anti-Acne Properties of Toona sureni (Blume) Merr. Leaves Extracts at Varying Tree Ages Falah, Syamsul; Safithri, Mega; Zuraida, Zuraida; Lastini, Tien; Ariyanti, Riska; Marwanto, Yoga Dwi; Rahmania, Fitriani Jati
Indonesian Journal of Chemistry Vol 26, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.104676

Abstract

Toona sureni (Blume) Merr., known as Indonesian mahogany, is valued for its wood, while its leaves are used as vegetables and animal feed. However, its medicinal potential remains underexplored. This study evaluated the antibacterial and tyrosinase inhibitory activities of T. sureni leaf extracts from 16-, 27-, and 34-year-old trees. Extraction was performed by maceration using methanol, ethyl acetate, and n-hexane for antibacterial testing; and 30, 70, and 96% ethanol for tyrosinase inhibition. Total alkaloid content was determined using the bromocresol green method, while antibacterial activity was assessed by disc diffusion and MIC, and tyrosinase inhibition by spectrophotometry using kojic acid as a control. It revealed a 3.83% alkaloid content in the 70% ethanolic leaves extract of the 34-year-old tree. The 96% ethanolic extract from 16-year-old leaves exhibited the highest tyrosinase inhibitory activity at 86.66% with an IC50 value of 53.71±1.04 μg/mL. Antibacterial tests revealed that the methanol extract of 16-year-old trees inhibited Staphylococcus aureus (17.73 mm) and Propionibacterium acnes (15.80 mm) at 10,000 μg/mL, with MIC of 1000 and 500 μg/mL, respectively. These results suggest that the extract of 16-year-old tree has both antibacterial and tyrosinase inhibitory effects, with greater potential for cosmetic use, particularly in anti-acne and skin-brightening products.
Co-Authors Endang Suhendang ENDANG SUHENDANG Estiningtyas, Nabilah Rizka Hardjanto Herry Purnomo I Nengah Surati Jaya Ichsan Suwandhi Marwanto, Yoga Dwi Mega Safithri Pratama, Farros Hilmi Purnama, Edwin Setia Rahmania, Fitriani Jati Riska Ariyanti, Riska Samsuri Samsuri Sofiatin Sofiatin, Sofiatin Syamsul Falah Zuraida Zuraida