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All Journal HAYATI Journal of Biosciences EKSAKTA: Journal of Sciences and Data Analysis Biosaintifika: Journal of Biology & Biology Education Forest and Society Jurnal Sylva Lestari Indonesian Journal of Forestry Research
Himmi, Setiawan Khoirul
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology Social Sciences

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Biological Control of Wood Destroying Organism Using Plant Extracts Collected from Mt. Merapi National Park, Indonesia Ismayati, Maya; Zulfiana, Deni; Tarmadi, Didi; Lestari, Anis Sri; Krishanti, Ni Putu Ratna Ayu; Himmi, Setiawan Khoirul; Fajar, Anugerah; Yusuf, Sulaeman
Biosaintifika: Journal of Biology & Biology Education Vol 11, No 3 (2019): Article-in-Press
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v11i3.20102

Abstract

Due to the climate change and global warming, the biodiversity database has gained the attention of the government. In line with the Indonesian Biodiversity Strategy and Action Plan (IBSAP), we have collected plants with insecticidal activity based on the local wisdom. This program aimed to protect Indonesian biodiversity from deforestation along with the loss of the number of species. This research?s goal was to evaluate termiticidal and antifungal properties from some plant extracts collected from the Turgo forest area, Mt. Merapi National park, Java. Three potential plants were evaluated. Based on specimen identification, the three plant samples were Kina (Cinchona sp.), Kamadoh (Dendrocnide stimulans (L.f.) Chew), and Keremi (Homalanthus populneus (Geiseler) Pax). The phytochemical test showed that Kina contained alkoloid, falvonoid, saponin, and tannin, whereas Kamadoh and Keremi contained saponin and tanin, respectively. Overall, all plant extracts have the termiticidal activities and able to inhibit wood- decay fungi with the inhibition percentage around 60% - 100%. Leaf extracts of Kina (Cinchona sp) and Keremi (Homalanthus populneus (Geiseler) showed the highest activity as wood-decay fungi inhibitor. The disclosure of the potential of bioinsecticides from some plants originating from Mount Merapi is very important before being lost due to deforestation and the Mount Merapi disaster. Thus, the potential bioinsecticide in these plants can increase its economic value as a substitute for synthetic insecticides that are friendly to the environment.
Larvicidal Activity of Brugmansia candida against Aedes aegypti and Culex quinquefasciatus (Diptera: Culicidae) Himmi, Setiawan Khoirul; Tarmadi, Didi; Meisyara, Dita; Fajar, Anugerah; Kartika, Titik; Guswenrivo, Ikhsan; Yusuf, Sulaeman
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 3 (2020): December 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i3.24634

Abstract

Mosquitoes are well known as vectors of hazardous diseases for human. Plant extracts can be used as an alternative for larval control due to they are a rich source of bioactive chemicals and safe for the environment. The present study investigated the larvicidal activity of crude extracts derived from leaf and flower of Brugmansia candida against the second larval instar of Aedes aegypti and Culex quinquefasciatus. The larval mortality was observed at 24 and 48 h exposure of both leaf and flower extracts, at the concentration of 100, 250, 500, and 1000 ppm. The 24 h exposure of both extracts at the concentration of 500 and 1000 ppm resulted in larval mortality rates were significantly lower than those of 48 h exposure. However, the mortality rate was not significantly different at the lower concentrations of crude extracts. The results also suggested that there was no significant difference in the larvicidal effect between leaf and flower extracts at 24 and 48 h exposure for all concentrations. The LC50 values at 48 h exposure for leaf extract were 789 and 791 ppm for Ae. aegypti and C. quinquefasciatus, respectively, whereas for flower extract were 772 and 780 ppm for Ae. aegypti and C. quinquefasciatus, respectively. Overall, B. candida showed larvicidal activity against Ae. aegypti and C. quinquefasciatus. This research contributes to new finding regarding the larvicidal activity of B. candida. This finding also supports the next study to develop B. candida as an alternative source for larval control agent.
Changing Livelihoods, Development, and Cultural Practices: Reshaping Forests Among the Tau Taa Vana People Humaedi, Muhammad Alie; Nadzir, Ibnu; Himmi, Setiawan Khoirul; Astutik, Sri; Tessa, Adhis; Andari, Rosita Novi
Forest and Society Vol. 8 No. 1 (2024): JUNE
Publisher : Forestry Faculty, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/fs.v8i1.26593

Abstract

The Tau Taa Vana people live in the Bulang Highlands, Tojo Una-Una, in Central Sulawesi Province. The region's development has shaped the marginalization of forest-dwelling and forest-adjacent communities. From the 1980s to the 1990s, illegal logging networks served as the power holders, backed by Indonesia’s authoritarian regime of that time. Illegal logging destroyed a large part of the Tau Taa Vana's sacred forest (pengale kapali). As part of the massive logging agenda, the government launched many legal programs that further isolated the Tau Taa Vana people from their land. The first program was transmigration in 1995-1998, which converted sacred forests into plantation areas and worker camps. Meanwhile, the Tau Taa Vana people were forced to relocate from their forest livelihoods (pengale lipu). In 2014, development shifted towards government-supported gold and nickel extraction identified in the Tau Taa Vana people's traditional regions. The government's planned material extraction of the region has forced the Tau Taa Vana people to adapt traditional environmental management systems. In the past, the forest had three main functions, as the source of food, medicine, and livelihoods. Nowadays, those functions are reduced drastically and the sacred forest with the Kaju Marangka'a region as the center has lost its cultural importance. Tau Taa Vana people today use the remaining forests as the center of their resistance movements and consider it as their last bastion for cultural preservation. In this regard, the role of traditional healers (tau valia) has become even more critical amidst the lack of traditional elders.
IDENTIFICATION OF LIGNOCELLULOSE-LIKE MATERIAL USING SPECTROSCOPY ANALYSIS Adi, Danang Sudarwoko; Fatriasari, Widya; Narto; Triwibowo, Dimas; Darmawan, Teguh; Amin, Yusup; Sofianto, Imran Arra'd; Pari, Rohmah; Agustiningrum, Dyah Ayu; Rahmanto, Raden Gunawan Hadi; Dewi, Listya Mustika; Himmi, Setiawan Khoirul; Djarwanto; Damayanti, Ratih; Dwianto, Wahyu
Indonesian Journal of Forestry Research Vol. 11 No. 2 (2024): 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.2024.11.2.299-306

Abstract

Lignocellulose materials, such as bamboo, rattan, and wood, have been largely used for furniture and crafts. On the other hand, the utilization of lignocellulose-like materials, which have a similar texture and appearance to those from nature, has been increasing recently due to their superior durability. This research aimed to identify the lignocellulose-like material using spectroscopy analysis, such as Raman and Near Infrared (NIR) which is well-known as a non-destructive, quick, and accurate approach for material identification. We investigated 4 types of lignocellulose-like materials that were provided by Dewan Serat Indonesia (The Indonesian Fiber Council) from an industry that produces them. The NIR analysis was performed at wavenumbers 10,000-4,000 cm-1. The natural lignocellulose (bamboo and wood) and the polymers (polyethylene and polyproline) were used as standards. Raman analysis was further employed to identify the composition of selected lignocellulose-like materials by comparing their spectra with the library software. The results showed that the original NIR spectra of lignocellulose-like and those natural materials were different, indicating that the NIR analysis can differentiate those materials. The NIR spectra of lignocellulose-like materials were similar to those of polyethylene spectra. Those lignocellulose-like were also identified as polyethylene due to the similarity of the Raman spectra and their library spectra.
Antitermite Activity of Eucalyptus pellita Bark Extract Andika, Riki; Arinana, Arinana; Sari, Rita Kartika; Rahmawati, Anindya Intan; Himmi, Setiawan Khoirul
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1023

Abstract

The study uncovers the promising anti-termite properties of Eucalyptus pellita bark extract, a resource often discarded as industrial waste in the pulp and paper manufacturing industry. It investigates the anti-termite efficacy of various extracts from E. pellita bark and identifies the extract with the highest activity, followed by a comprehensive phytochemical analysis. Samples of E. pellita inner bark, outer bark, and mixed bark were ground into 40–60 mesh powder and subjected to extraction using soxhletation techniques with successive extraction in increasingly polar solvents (n-hexane, ethyl acetate, and methanol solvents). The anti-termite activity of these extracts was evaluated using no-choice bioassays to determine the termite antifeedant activity through the weight loss percentage of test samples and the mortality rate of Coptotermes sp. Furthermore, Py-GCMS analysis was conducted on extracts exhibiting the highest anti-termite activity to elucidate their chemical composition. The findings revealed that methanol extracts from all three parts of E. pellita bark exhibited the most potent anti-termite activity against Coptotermes sp., as evidenced by the highest mortality rate (100%) and cellulose paper weight loss of 9.57 ± 6.66 mg. These methanol extracts were predominantly composed of phenolic compounds, particularly condensed tannins, suggesting a potential breakthrough in termite control. The findings indicate that E. pellita bark may be a sustainable and eco-friendly alternative to chemical pesticides for termite control. Furthermore, its utilization may facilitate waste valorization in the pulp and paper industry, thereby supporting environmental sustainability and economic efficiency. Keywords: coptotermes, decay properties, inner bark, outer bark, resistance properties
Formulation of Nanoemulsion of Gotu Kola (Centella asiatica (L.) Urban) Leaves Extract as Active Ingredients to Produce Antioxidant Facial Serum Fitri, Noor; Tanjungsari, Afifah Adinda; Himmi, Setiawan Khoirul; Solihat, Nissa Nurfajrin
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 5, ISSUE 1, April 2024
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol5.iss1.art10

Abstract

Abstract: Free radicals can cause cell damage such as premature aging. To protect, ward off and stabilize free radicals, antioxidant compounds can be used. Plants that can be used as a source of antioxidants are gotu kola (Centella asiatica (L.) Urban). The aim of this research is formulating a nanoemulsion of gotu kola leaves extract as an active ingredient for producing the antioxidant serum. The steps of this research include: (1) extraction by maceration and Microwave-Assisted Extraction (MAE); (2) extract characterization; (3) formulation of nanoemulsion using Self-Nanoemulsifying Drug Delivery System (SNEDDS) method; (4) nanoemulsion testing: stability test, antioxidant activity test, and irritation test, (5) nanoemulsion characterization which includes particle size, transmittance, pH, and viscosity. The results showed that: (1) yields of the maceration method and MAE were 14,60% and 17,54%; (2) antioxidant compounds in gotu kola leaves extract are squalene, kaempferol, asiaticoside; The IC50 of the maceration and MAE extract were 93,152 ppm and 80,365 ppm; (3) nanoemulsions were made in 3 formulas (0,1; 0,3; and 0,5 g) with fixed variables of capryol 90, tween 20, and PEG 400 (1,5; 2,5; and 1); (4) stability test showed that only F1 was stable; the IC50 value of nanoemulsion is 2604,967 ppm; and the F1 irritation test showed no erythema and edema; (5) The particle size of F1 is 166,7 nm with a transmittance value of 97.4%, a pH of 5,33, and a viscosity of 75,35 cP.
Termites as Soil Engineers: A Study on Organic Carbon and Nutrient Dynamics using Baiting Techniques in Tropical Forest Ecosystem Febriani, Sri Rezeki; Ariyanto, Dwi Priyo; Cahyono, Ongko; Tarmadi, Didi; Wikantyoso, Bramantyo; Himmi, Setiawan Khoirul; Zaki, Muhamad Khoiru
HAYATI Journal of Biosciences Vol. 33 No. 2 (2026): March 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.2.394-403

Abstract

This study explores how termite activity affects soil chemistry, those are Soil Organic Matter (SOC) and nutrient dynamics in pine and mahagony forest of varying ages in the Bromo Forest, Indonesia. Termite activity was assessed using wooden poles placed in PVC pipes as bait, which also served for soil sampling. The results showed significant differences in SOC and total NPK levels among different pole damage classes in each forest. The highest values were observed in pole damage class 4. Termite-influenced soil, especially those affected by the genera Macrotermes sp., Microtermes sp., and Schedorhinotermes sp., showed the highest concentrations of SOC and NPK (4.97%, 0.51%, 15.42 mg/100 g, and 45.9 mg/100 g, respectively). The termite diversity index showed moderate diversity in all pine forests and low diversity in mahogany forests. The termite diversity index indicated moderate diversity in pine forests and low diversity in mahogany forests, likely influenced by bait type. These results demonstrate that termite activity significantly enhances soil nutrient content and can be used as an indicator of soil fertility status in tropical forest ecosystems.
Co-Authors Arinana Arinana Danang Sudarwoko Adi Deni Zulfiana Djarwanto Dwi Priyo Ariyanto Dyah Ayu Agustiningrum, Dyah Ayu Fajar, Anugerah Febriani, Sri Rezeki Guswenrivo, Ikhsan Ibnu Nadzir, Ibnu Ismayati, Maya Kartika, Titik Krishanti, Ni Putu Ratna Ayu Lestari, Anis Sri Listya Mustika Dewi Meisyara, Dita Muhamad Khoiru Zaki Muhammad Alie Humaedi, Muhammad Alie Narto Nissa Nurfajrin Solihat Noor Fitri Ongko Cahyono Pari, Rohmah Rahmanto, Raden Gunawan Hadi Rahmawati, Anindya Intan Ratih Damayanti Riki Andika Rita Kartika Sari Rosita Novi Andari, Rosita Novi Sofianto, Imran Arra'd SRI ASTUTIK Tanjungsari, Afifah Adinda Tarmadi, Didi Teguh DARMAWAN Tessa, Adhis Triwibowo, Dimas Wahyu DWIANTO Widya FATRIASARI Wikantyoso, Bramantyo Yusuf, Sulaeman Yusup AMIN Zulfitri, Apriwi