Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Indonesian Journal of Forestry Research Indonesian Journal of Forestry Research Indonesian Journal of Jamu
Wawan Halwany, Wawan
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Health Professions Medicine & Pharmacology

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
SOIL AND WATER MICROORGANISM DIVERSITY OF MANGROVE FOREST OF TELUK KELUMPANG, SELAT LAUT AND SELAT SEBUKU NATURAL RESERVE Halwany, Wawan; Andriani, Susy
Indonesian Journal of Forestry Research Vol 2, No 2 (2015): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2015.2.2.131-140

Abstract

Mangrove is a unique ecosystem that has complex biotic and abiotic components. Soil and water microorganisms have function as decomposer in mangrove forest ecosystem.  This paper studies the soil and water microorganisms diversity, their potential, function in ecosystem and their role as environmental parameters in mangrove area of Teluk Kelumpang, Selat Laut and Selat Sebuku Natural Reserve (Kelautku Natural Reserve).  Data of soil and water microorganisms were recorded from soil and water samplings then analyzed in the laboratory.  Results show that benthos in Selat Sebuku figure the highest diversity index.  Anadara granosa  is one of the common benthos found in Selat Sebuku.  In contrary the phytoplankton in Selat Sebuku is the lowest value compared to the other two locations, due to the settlements in the locations and it was suspected that Selat Sebuku has a relatively larger wave exposure than the two other locations.  In addition, input of organic matters from the settlements in Teluk Kelumpang and Selat Laut is also effected  by the growth of  phytoplankton.  Cyanophyta found in Teluk Kelumpang and Selat Laut was genera of Oscillatoria that showed high tolerance genera to  the environment conditions.
SOIL AND WATER MICROORGANISM DIVERSITY OF MANGROVE FOREST OF TELUK KELUMPANG, SELAT LAUT AND SELAT SEBUKU NATURAL RESERVE Halwany, Wawan; Andriani, Susy
Indonesian Journal of Forestry Research Vol. 2 No. 2 (2015): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2015.2.2.131-140

Abstract

Mangrove is a unique ecosystem that has complex biotic and abiotic components. Soil and water microorganisms have function as decomposer in mangrove forest ecosystem. This paper studies the soil and water microorganisms' diversity, their potential, function in ecosystem and their role as environmental parameters in mangrove area of Teluk Kelumpang, Selat Laut and Selat Sebuku Natural Reserve (Kelautku Natural Reserve). Data of soil and water microorganisms were recorded from soil and water samplings then analyzed in the laboratory. Results show that benthos in Selat Sebuku figure the highest diversity index. Anadara granosa is one of the common benthos found in Selat Sebuku. In contrary the phytoplankton in Selat Sebuku is the lowest value compared to the other two locations, due to the settlements in the locations and it was suspected that Selat Sebuku has a relatively larger wave exposure than the two other locations. In addition, input of organic matters from the settlements in Teluk Kelumpang and Selat Laut is also effected by the growth of phytoplankton. Cyanophyta found in Teluk Kelumpang and Selat Laut was genera of Oscillatoria that showed high tolerance genera to the environment conditions.
Characterization of Ethanol Extract from Agarwood (Aquilaria microcarpa Baill.) Leaf Rahmanto, Beny; Halwany, Wawan; Lestari, Fajar; Anwar, Khoerul; Triyasmono, Liling; Rizki, Muhammad Ikhwan; Turjaman, Maman
Jurnal Jamu Indonesia Vol. 3 No. 2 (2018): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v3i2.56

Abstract

The aim of this research is to determine the specific and non-specific parameter from ethanolic extract of A. microcarpa. Specific parameters such as the organoleptic properties, content of water and ethanol soluble compound, and chhromatogram profile of the extract. In contrast, the non-specific parameter includes drying losses, ash levels, microbiological contamination levels, and heavy metal contamination levels. The results showed that the organoleptic properties of ethanolic extract of A. microcarpa was thick, blackish brown color, bitter taste and have distinctive odor. The average content of water-soluble compounds of 66.93%, ethanol-soluble of 47.97%, and chromatogram profile with Rf 0.636. The non-specific parameters results were drying losses of 5.50%, total ash content of 3.73%, acid-insoluble ash of 2.13%, microbial contamination testing results of 1.2x102-5.5x103 colonies/g, and total mold/ yeast contaminants of 10-100 colonies/g. Heavy metal contamination Pb levels and Cd levels were 5.47 mg/kg and 0.19 mg/kg respectively. These studies suggested that the observed specific and non-specific parameters may be helpful for establishing pharmacopoeia standards of A. microcarpa and to ensure uniformity of extract effect.
FUNGI AND MACROFAUNA COMMUNITY IN POST-FIRE PEATLAND IN CENTRAL KALIMANTAN Hakim, Safinah Surya; Halwany, Wawan; Rachmanadi, Dony
Indonesian Journal of Forestry Research Vol. 6 No. 2 (2019): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2019.6.2.107-116

Abstract

Peat soil with its unique physical and chemical character is host to various microbe and fauna. In the peat, the existence of microbe and macrofauna influenced by several environmental parameters. Therefore, in this study we would like to obtain the information about fungi and macrofauna in the post fire degraded peat swamp soil with emphasize on two points which are (i) abundance of soil fungi and soil macrofauna (ii) to describe the environmental parameters (e.g. understory and chemical properties) on the existence of fungi and macrofauna community. Soil dilution and pitfall trap were used to collect microbes and macrofauna in the targeted post-fire peat soil: Post-fire peatland /bareland (A), post-fire peat-land revegetated in December 2016 (B), post-fire peat-land revegetated in April 2016 (C), post-fire peat-land revegetated in December 2015 (D). Result showed that abundance of soil fungi obtained during this study is 4×105 to 11×105 cfu/ml. While the macrofauna abundance is 353-1038 ind/m2. Fungi and macrofauna community in peatland affected by understory cover which related with revegetation activity. There is a trend of increasing the abundance of microbes and macrofauna on the land along with the increase of the percentage of understory cover.
Co-Authors Dony Rachmanadi, Dony Fajar Lestari Khoerul Anwar Liling Triyasmono Maman Turjaman Muhammad Ikhwan Rizki Rahmanto, Beny Safinah Surya Hakim, Safinah Surya Susy Andriani, Susy