Managing end-of-life tyres (ELTs) has become an urgent global issue because tyres are difficult to decompose naturally and take more than 50 years to break down. In the Jabodetabek (Jakarta, Bogor, Depok, Tangerang, Bekasi) area, ELT generation is estimated at 2.5–3 million units annually, with the most significant contributions from Karawang (1,000 units per month) and Bogor (820 units per month). Bias-ply used tires, which contain up to 70% rubber, have significant potential for recycling into raw materials for new tires through reclaimed rubber technology, aligning with the principles of a circular economy. This study aims to map the supply chain ecosystem of ELTs, identify key stakeholders, and optimise material flow to support the development of the rubber industry from reclaimed materials. The study employs a qualitative descriptive method. The number of research locations was determined using the Solvin method with an error rate of 25%. Observations were performed at 15 specific tire shops, two truck tire shops, three fleets, and three used tire collectors in the Jabodetabek and West Java areas. The findings indicate that the total estimated number of ELTs collected in Jabodetabek from tire stores, truck tires, fleets, and collectors reaches 2,860 monthly units. The main challenges in ELT management include limited storage facilities, low awareness of the economic value of waste, and a predominantly conventional management system. The study also reveals that only 20% of ELTs are utilised optimally, highlighting a significant untapped potential.

The characteristics of natural rubber greatly influence the quality of asphalt modified with natural rubber. This research uses natural rubber of the Technical Specified Rubber (TSR) 20 type, which in Indonesia is called Standard Indonesian Rubber (SIR) 20 as the raw material. The sulfur vulcanization material is expected to increase crosslinks so that it can increase the resistance of natural rubber to hot asphalt and can improve the quality of rubberized asphalt. This research was designed by varying the sulfur dosage and vulcanization duration. The sulfur dosage used varies, namely 5; 10; 15; 20 parts per hundreed rubber (phr). The duration of vulcanization time at 140 °C for each dose of sulfur is 0;30;60;90;120 min. The compound or vulcanisate is then mixed into the asphalt at a temperature of 160–170 °C with a dose of 2 % rubber and 98 % asphalt. Based on the research results, it is known that increasing the sulfur dosage and vulcanization time duration produces rubber that is more resistant to oil through testing for solubility and swelling in toluene. The unvulcanized compound dissolves in toluene, while the vulcanizate swelling ratio decreases with increasing sulfur dosage (790 to 482 %). Increasing the sulfur dosage and the duration of vulcanization time produces harder rubber so that the duration of mixing into asphalt increases from 1.5 h to 5.5 h. The addition of sulfur dosage and vulcanization time duration can increase the original Performance Grade (PG) and PG after Rolling Thin Film Oven Test (RTFOT) when compared to original asphalt. Original PG of rubberized asphalt obtained from this research is 69.8 to 90.4 °C compared to original asphalt PG which is only 66.7 °C. PG after RTFOT was obtained between 60.3 to 88.4 °C compared to original asphalt PG which was only 64 °C. This research data can be useful in the design of rubber compounds and vulcanizates which can be selected by considering process engineering, processing machines and economic aspects in the production of rubberized asphalt.

Kulit ikan salmon merupakan salah satu hasil samping yang dapat diolah menjadi kolagen. Kolagen larut papain (PaSC) adalah istilah yang digunakan untuk menggambarkan kolagen yang diekstraksi menggunakan kombinasi asam dan enzim papain. PaSC berpotensi menjadi sumber kolagen halal. Penelitian ini bertujuan untuk menentukan waktu ekstraksi dan konsentrasi enzim papain terbaik dalam menghasilkan kolagen kulit ikan salmon berdasarkan persentase rendemen dan sifat kimia. Kulit ikan salmon diekstrak menggunakan kombinasi asam asetat (0,5 M) dan enzim papain (500; 1.000; 1.500 U/mg/g kulit) selama 1; 2; dan 3 jam. Parameter yang dianalisis dalam penelitian ini meliputi logam berat, rendemen, asam amino, gugus fungsional, dan berat molekul. Hasil penelitian menunjukkan bahwa perlakuan kombinasi asam asetat konsentrasi 0,5 M dan enzim papain 1.000 U/mg/g selama 2 jam menghasilkan kelarutan kolagen yang maksimal dengan rendemen sebesar 15,38% (bk). Kolagen PaSC kulit ikan salmon terdeteksi memiliki asam amino prolin, glisin, dan arginin. Distribusi berat molekul kolagen berada pada rentang 20-142 kDa. Struktur triple helix kolagen tidak mengalami perubahan selama proses ekstraksi berdasarkan analisis FTIR.

Salah satu upaya untuk meningkatkan konsumsi domestik karet alam dalam rangka untuk mendongkrak harga karet alam adalah penerapan teknologi aspal karet. Jenis karet alam yang dapat digunakan untuk aditif aspal adalah lateks pekat dan karet padat. Kajian tentang kesiapan penerapan teknologi aspal karet sangatlah penting karena dapat digunakan oleh pemerintah dalam menentukan arah kebijakan penerapan aspal karet di Indonesia. Berdasarkan kajian literatur dan wawancara dengan para peneliti dan praktisi dari produsen aspal karet, dengan menggunakan perangkat pengukuran Tingkat Kesiapan Teknologi (TKT) maka tampak bahwa kesiapan teknologi aspal karet berbasis lateks pravulkanisasi mencapai TKT 9 yang artinya telah siap untuk diterapkan berdasarkan atas berbagai pertimbangan. Sementara untuk penerapan teknologi aspal karet berbasis karet padat yang telah diolah menjadi vulkanisat karet alam masih pada TKT 6. Dengan demikian upaya untuk melaksanakan penelitian dan pengembangan teknologi aspal karet padat masih sangat dibutuhkan. Beberapa hal yang perlu dilakukan untuk penelitian lebih lanjut adalah terkait formulasi dan proses pengolahan karet alam padat Standard Indonesian Rubber (SIR) 20 yang mudah dicampurkan dalam aspal dan menghasilkan mutu aspal karet yang terbaik.

Crab is an exotic marine fishery commodity whose demand is increasing significantly in Indonesia. However, the industry also produces much waste in the form of crab shells, reaching 52.59% of its total weight. This waste (often called by-product) can be processed into several products with economic value such as chitosan, liquid organic fertilizer, and animal feed. This study assesses the environmental impact of crab shells processed into chitosan, liquid organic fertilizer, and animal feed. The study was carried out using the Life Cycle Assessment (LCA) approach with cradle-to-gate scope. The environmental impacts were observed consisting of some aspects such as Global Warming Potentials (GWP), Acidification Potentials (AP), Eutrophication Potentials (EP), and Cumulative Energy Demand (CED). The three-alternative utilization of crab shells produces environmental impacts resulting from fishing, transportation, and processing of the crab shells into these products. Afterward, the results of this study indicate that the crab shells processed into liquid fertilizer have the highest emission according to the GWP, AP, and CED values compared to the other by-product alternatives (i.e., chitosan and fertilizer). Whilst, the highest EP is produced by the processing of CS-based animal feed. These results can potentially become a consideration in making environmental policy by the local government, especially in Karawang Region.

Abstract Ensuring access to nutritious food and maintaining high standards in food supply is essential for the expanding population of Indonesia, as outlined in Law No. 18 of 2012. Within the framework of the National Industrial Development Master Plan (RIPIN) for the years 2015–2035, the meat processing industry plays a pivotal role. The surge in income levels, changes in dietary habits, and the growth of modern retail outlets have increased the demand for processed meat products in the country. However, the industry faces obstacles such as low levels of meat intake and a heavy dependence on imported raw materials, highlighting the need for a well-rounded strategy to boost competitiveness, encourage consumption, and tackle nutritional issues. This literature review delves into the Indonesian meat processing industry’s competitiveness, addressing the need for strategic enhancements to meet domestic and global demands. It identifies key challenges, including the reliance on imported raw materials and limited export market expansion. Through a comprehensive literature review, it explores strategic frameworks and innovative approaches, emphasizing the Industrial Competitiveness Index (ICI), SWOT analysis, and the Analytic Hierarchy Process (AHP) for strategic decision-making. Recommendations include investment in technology and innovation, enhancing supply chain sustainability, market diversification, skill development, and regulatory support. The paper concludes that a multifaceted strategy integrating these elements can significantly boost Indonesia’s meat processing industry’s competitiveness and sustainability.

Nyamplung seed oil has active compounds that can be utilized as the foundation for medications or cosmetics. The purpose of this study is to ascertain the impact of pressing temperature and drying duration on the production of VCphO, a cosmetic preparation, from nyamplung fruit. In this work, Virgin Callophyllum Oil (VCphO) was mechanically extracted at room temperature and heat using a screw press with drying fruit 3, 5, 7 days compare with oven drying. We looked at the pH and phytochemical composition of VCphO. Investigations also looked on antibacterial and antioxidant effects. The yield was unaffected greatly by hot or cold pressing. Pressing at room temperature results in a low acid number, making it the ideal treatment. The pH range of VCphO is 4 to 5.48, which is similar to skin pH. VCphO includes high levels of antioxidants (48-57 %) and total phenols (1-2.6 mg GAE/g sample). Terpenoids, quinon, flavonoids, and phenols are steroid chemicals that demonstrate the antioxidant and antibacterial properties of VCphO. VCphO has a very strong antibacterial against bacteria p.acnes and is weak on s.epidermis bacteria. Based on this, VCphO has the potential to be used in pharmacology. (c) 2023 SAAB. Published by Elsevier B.V. All rights reserved.

Collagen is a type of protein that is plentiful and has a wide variety of applications. Collagen is often derived from porcine and bovine, however, both sources are considered to transmit disease, particularly porcine sources, which haram to Moslem. There are some methods for collagen extraction, on of them using acid method. The purpose of this study was to obtain the best method of extraction and analyze collagen from alternative sources, specifically salmon skin, which is abundant. This study included two stages, i.e. pretreatment with sodium hydroxide for eliminating non-collagen proteins prior from salmon skin and extraction with acetic acid for collagen extraction. Pretreatment was carried out utilizing a split-plot design with parameters for determining the levels of non-collagen protein. The extraction step used a factorial completely randomized design to observe yields, amino acids, functional groups, and molecular weights. The results indicated that the extract was collagen. It was indicated by high glycine, alanine, and proline amino acid content. The result of SDS-PAGE showed the extracted was type I collagen was characterized by two identical 1 chains and one similar, but 2 different chains. The propeptides of type I procollagen have a similar composition. The most effective method for eliminating non-collagen proteins prior to extracting collagen from salmon skin was pretreatment with a 0.05 M NaOH solution for 10 hours. Collagen extraction using acetic acid at concentration of 0.5 M for 48 hours resulted in a yield of 12.79%.

Hide trimming waste is a by-product of tannery. Collagen is the main structural protein in hide trimming waste (70%), and extensively utilised in numerous industries including food, non-food, cosmetics, and medical. Research related to the development of hydrolysed collagen (h-collagen) extraction methods from cowhide, especially from the hide trimming waste, is still limited. The present work thus aimed to develop a four-step method for extracting h-collagen from hide trimming waste, and examine the product's properties. The present work successfully developed a method for extracting h-collagen from trimming waste with a 20.35% yield. Analysis of molecular weight, FTIR, and amino acid composition confirmed that the product was h-collagen with a molecular weight of 16 - 23 kDa. This h-collagen had higher antioxidant activity than commercial h-collagen, with an IC50 value of 238.5 ppm.

Chromium (III) sulfate is a popular tanning agent for producing leather. However, chrome tanning wastewater is one of the problems in the leather tanning industry. To prevent this, tanning using vegetable materials can be used in the leather tanning process. One of the natural ingredients that can be used is mimosa. However, mimosa is relatively expensive, so a substitute/combination tanning agent is needed to make tanning costs cheaper. This research aims to determine the effect of using a combination of mimosa and silicic acid from rice husk (RHSA) tanners on the quality of the tanned leather produced. This research uses a completely randomized factorial design with mimosa and RHSA as factors. The analysis shows that the best treatments were 20% mimosa and 20% RHSA. In addition, the analysis shows that the treatment met the standard. The resulting shrinkage temperature was 84 °C, tear strength was 39.98 N mm-1, tensile strength was 26.42 N mm-2 and elongation at break was 41%. Combination tanning also shows no significant difference from conventional tanning and reduces mimosa without decreasing leather quality.

Nyamplung fruit has a very high industrial potential, especially for the bioenergy industry. The seeds contain high levels of oil that can be transformed into biodiesel. The advantage of nyamplung fruit as bioenergy raw material is that the seeds have a high yield can reach 74%. One of the difficulties of transforming the fruit into a product with high economic potential is in terms of taking out the seed from its shell, which is influenced by the moisture content of the fruit. To reduce the moisture content, nyamplung fruits require a drying process. The drying process is usually done by utilizing sunlight. This method has the disadvantage of taking a long time and is affected by the weather. Therefore, it is necessary to conduct a study to select one of several drying methods based on their efficiency and effectiveness. The study results showed that drying using the oven for 6 hours produced a moisture content of 10% wet base while drying using a 6-hour roasting method produced a moisture content of 6.5% wet base, and drying using sunlight for 168 hours produced a moisture content of 10.23% wet base. Water content between 6.5-10.23% makes separating seeds from their shells easy. Based on this study, it can be concluded that drying methods affect the moisture content of the fruit, and the method of drying using the oven turned out to be more effective.

Bating is one of the processes in leather production. This process is generally performed under slightly alkaline conditions, but it can also be done under acidic conditions. Rhizopus oligosporus is categorized as a microorganism that can synthesize acidic enzymes optimally in acidic conditions. This study aimed to evaluate the effect of the bating process using acid protease from R. oligosporus on the leather qualities tanned by chromium sulfate. The study used a completely randomized design where crude enzyme activity (0, 2.5, 5, 7.5, and 10 U mL-1) was a single treatment as an experimental design. Data were analyzed using ANOVA and furtherly tested using Duncan. The results show that the protease synthesized from R. oligosporus is potential to be used as a bating agent. The treatment with 2.5 U mL-1 activity was the best treatment in this study to improve leather (wet blue) properties like shrinkage temperature, ash content, and chrome oxide content. The quality of wet blue produced was better than that produced with conventional treatments. It can be concluded that the enzyme activity of 2.5 U mL-1 could be used as a bating-agent alternative in the acid bating stage.

The objectives of this research was (1) identified the existing business model of Hotel Selarong Bogor; (2) formulated a business development strategy using SWOT analysis at the Selarong Hotel, Bogor; (3) obtained priority strategies that the company will use; and (4) designed the BMCS Hotel Selarong Bogor for the future. This study used descriptive analysis methods, BMCS, IFE and EFE, IE, SWOT, and AHP EVM. Based on the results of interview data regarded the existing BMCS, Hotel Selarong wasn’t implement a sustainable strategy. Building the IE matrix requires, the results of IFE matrix and EFE matrix. The total scores for IFE and EFE was 2,939 and 2,818. These results indicated that, Selarong Hotel was in cell V of the IE matrix (Internal-External). The company was a hold and maintain status. The Companies can implement market penetration and product development strategies. After conducted a SWOT analysis, get ten strategies, then weighting priorities using the AHP EVM approach. Provide questionnaires to CEO, Co-CEO, and manager. Based on the priority strategy, strategy 5 was the highest priority, then strategies 7, 4, 8, 6, 9, 10, 2, 3, and 1. The first step that can be took to change the business model was through activities to change the company's vision and mission to a sustainable business direction. The green hotel concept was the new strategy used in implementing the sustainability strategy. Based on the new BMCS, there were additions in 8 of the 10 BMCS sections, namely vision and mission, value proposition, customers, stakeholders, key activities, essential resources, critical partnerships and cost structure. Keywords: BMCS, Sustainable Business. AHP, IFE, EFE, IE

Permasalahan kesulitan keuangan yang bisa menyebabkan kebangkrutan terjadi pada industri penyamak kulit di Sukaregang-Garut. Kondisi ini terlihat dari menurunnya jumlah industri penyamak kulit. Disisi lain jumlah industri penyamak kulit yang menggunakan fasilitas pinjamann dengan sistem bunga jumlahnya semakin meningkat. Penelitian ini bertujuan untuk menganalisis potensi keberlanjutan industri penyamak kulit dengan struktur modal pinjaman sistem bunga. Penelitian ini menggunakan metode wawancara dan data yang diperoleh dianalisis dengan menggunakan analisis kebangkrutan Altman Z-Score . Rasio Modal Kerja Terhadap Total Asset (X1), Rasio Laba di Tahan Terhadap Total Asset(X2), Rasio Laba Terhadap Total Asset (X3) dan Rasio Equitas Terhadap Hutang (X4) semakin menurun dengan semakin meningkatnya struktur modal pinjaman sistem bunga. Jumlah pinjaman dengan sistem bunga tidak mempengaruhi nilai Rasio pendapatan terhadap total asset (X5). Rasio Pinjaman di atas 50 peresen pada industri penyamak kulit akan menurunkan potensi keberlanjutan usaha atau menaikan potensi kebangkrutan

The alkyd resin industry currently needs environmentally friendly raw materials, which emphasized the aspect of sustainability. Alkyd resin is a polymer product with oil as raw material which is widely used in the paint, coating, and other industries. The abundant demand for alkyd resin has led to a diversification of the raw material for alkyd resin from vegetable oils. The advantages of vegetable oil include being a renewable energy source for industry, sustainability, biodegradability, and being environmentally friendly as important considerations for the industry in recent times. This paper examines alkyd resins derived from several vegetable oils that are environmentally friendly. Alkyd resin is prepared by alcoholysis and esterification. Based on several studies of alkyd resins, there have been many modifications to the raw materials, technology, and catalysts used which can refer to an environmentally friendly and affordable industry. Keywords: alkyd resin; biodegradability; environmentally friendly; sustainability; vegetable oil A B S T R A K Industri polimer pada masa ini membutuhkan bahan baku yang ramah lingkungan, yang menekankan pada keberlanjutan. Alkid resin adalah salah satu produk berbasis minyak yang banyak digunakan dalam industri cat, coating, dan industri lainnya. Keberlanjutan, biodegradabilitas, dan keramahan terhadap lingkungan menjadi pertimbangan signifikan bagi industri berbasis minyak nabati dalam beberapa waktu terakhir. Di dalam naskah ini, diulas beberapa minyak nabati yang digunakan untuk memproduksi alkid resin dengan cara alkoholisis dan esterifikasi. Berdasarkan berbagai studi yang telah dilakukan, masih terdapat modifikasi dari sisi material, teknologi dan katalis agar tercipta industri yang ramah lingkungan. Kata kunci: alkid resin; biodegradabilitas; keberlanjutan; minyak nabati; ramah lingkungan

Fatliquoring is a part of tanning process, which is penetrating the fatliquoring agent into leather's empty cells. The process changes the physical characteristics of leather, which make it softer, more elastic, flexible, and give smooth grain surface. This study is conducted to investigate the effects of type and dosage of fatliquors on the physical properties of tuna skin leather for the shoe upper. The types of fatliquors used are natural and synthetic, and the dosages are 3%, 6%, 9%, 12%, and 15%. Thickness increase, tear strength, tensile strength, elongation at break, and organoleptic properties of the leather are investigated. Based on this study, the types of fatliquor significantly affect the tear strength and elongation at break. The dosages of fatliquor which are nested in the type of fatliquor significantly affect tear strength, tensile strength, and elongation at break. The best treatment in this study is synthetic fatliquor with dosage of 3%. The treatment produced leather with thickness increase of 32.4%, tear strength of 95.3 N/mm, tensile strength of 27.9 N/mm(2), elongation at break of 45.3%, dark brown colour, smooth feel or handle, and good flexibility.

Indonesia is one of the producing countries of natural fibre commodities, both vegetable and animal fibres. Indonesia exports natural fibres and at the same time needs a large quantity of natural fibers which is satisfied by imports. The natural fibre user industry contributes as a source of the state revenue. This article waswritten descriptively through a literature review and an analysis of data on the potential and future of Indonesian natural fibres as raw materialsfor various industries. The results of this study indicatedthat natural fibre from Indonesia hadthe potential to be used as raw materials for various industries by increasing the quantity of supplies and their qualities; the uses of natural fibres are not only for conventional uses, but continues to grow with the development of science, technology and art to create innovations based on natural fibres and take awareness of the importance of environmentally friendly products; and natural fibres have good prospects or technoeconomically feasibile to be developedas raw materials for various industries.

Fatliquoring process is an important process in leather manufacturing as the process affects the properties of leather such as softness, oil content, tensile strength, elongation at break and tear strength. In this study, sulfated oil was made from palm oil by sulfatation process using 25% sulfuric acid (98% content) with variation of sulfatation times (0, 1, 2, 3, and 4 hours). The study aimed to know the influence of sulfatation time on the production of sulfated oil to the quality of oil and finish leather produced. The results showed the sulfatation time affected the quality of sulfated oil and tanned leather. The optimum time for sulfatation process of palm oil was three hours. The quality of sulfated oil had water content of 6.47%, pH of 8, oil content of 81.28%, saponification number of 192.74%, total alkalinity of 0.25%, ash content of 2.77% and SO3 levels bond of 7.68%. The quality of finished leather were tensile strength of 286.50 N/mm2, elongation at break of 63.33%, softness of 3.92 mm and oil content of 10.15%.

ABSTRAK Indonesia terkenal kaya akan keanekaragaman hayati, termasukjenis tumbuhan yang mengandung bahan aktif insektisida. Tanamankamandrah (Croton tiglium L.) merupakan salah satu tanaman obat yangbanyak terdapat di wilayah Indonesia dan telah dimanfaatkan sebagaiinsektisida nabati. Penelitian ini bertujuan untuk mengetahui karakteristikfisiko-kimia minyak kamandrah pada berbagai tingkat kematangan sebagailarvasida nabati terhadap larva nyamuk demam berdarah dengue (A.aegypti). Penelitian dilakukan di Laboratorium Balai Penelitian TanamanRempah dan Aneka Tanaman Industri (Balittri) Sukabumi, Balai BesarLitbang Pascapanen Pertanian Bogor, Insektarium LaboratoriumParasitologi dan Entomologi Kesehatan FKH IPB Bogor, dan Biofarmaka-LPPM IPB Bogor, mulai bulan Februari sampai Desember 2010. Minyakkamandrah diperoleh dengan ekstraksi menggunakan pengempa hidrolikpada suhu 65 o C dan tekanan 7,9 MPa pada buah kamandrah dengan tigatingkat kematangan yang berbeda: warna kulit buah hijau kecokelatan,cokelat kehijauan, dan cokelat penuh. Minyak yang diperoleh selanjutnyadianalisis bilangan asam, kadar asam lemak bebas, bilangan peroksida,indeks bias, berat jenis, dan nilai warna minyak, serta uji larvasidaterhadap larva nyamuk A. aegypti instar III. Penentuan nilai lethalconcentration (LC) dilakukan dengan metode probit analisis (FinneyMethod). Hasil penelitian menunjukkan bahwa berdasarkan nilai LC,rendemen, dan mutu minyaknya, buah kamandrah yang berwarna kulitcokelat penuh lebih berpotensi sebagai larvasida nabati terhadap larva A.aegypti. Rendemen minyak kamandrah 20,42% dan nilai LC 50 adalah132,67 ppm (24 jam) dan 70,08 ppm (48 jam). Minyak tersebut memilikibilangan asam 8,76 mg KOH/g minyak; kadar asam lemak bebas 4,36 mgKOH/g minyak; bilangan peroksida 3,59 meq O/100g minyak; indeks bias1,4783; bobot jenis 0,9466 g/ml; dan warna meliputi nilai L* 73,03; a*3,26; dan b* 64,13. Minyak kamandrah berpotensi dapat dimanfaatkansebagai larvasida nabati dalam pengendalian vektor penyakit DBD. Kata kunci : Croton tiglium L., kematangan buah, minyak kamandrah,larvasida ABSTRACT Effect of Maturity Level of Fruits on Larvicidal Activityand Physico-Chemical Properties of Kamandrah (Crotontiglium L.) Oil Indonesia is famously rich in biodiversity, including species of plants thatcontain active ingredient for insecticide. Kamandrah plant (Croton tigliumL.) is one of many medicinal plants found in parts of Indonesia and it hasbeen used as an insecticidal plant. The objectives this research were todetermine the physico-chemical characteristics and larvasidal activities ofoil extracted from kamandrah seeds with varying levels of maturity asbotanical larvicide for mosquito dengue fever. The expreriments wereconducted in the Laboratory of Indonesian Spice and Industrial CropsResearch Institute (ISICRI) Sukabumi, Indonesian Center for AgriculturalPostharvest Research and Development (ICAPRD), InsectariumLaboratory of Health Parasitology and Entomology, Faculty of Veterinaryof Bogor Agricultural University (IPB), and Biopharmaca IPB Bogor,from February to December 2010. The oil was obtained through extractionusing hydraulic pressurer at 65 o C temperatures and 7.9 MPa pressures ofkamandrah fruits with three different maturity levels : brownish green,greenish brown, and fully brown color of fruit skins. Oil gained was thenanalyzed its acid number, free fatty acid content, peroxides number,refractive index, specific gravity, and oil color values, as well as the oillarvasida test against mosquito larvae A. aegypti instar III. Determinationthe oil lethal concentration (LC) values was tested using probit analysismethod (Finney Method). The results showed that based on the values ofLC, content, and quality of the oil, full-brown colored kamandrah fruits aremore potential as larvivida against A. aegypti larvae. Oil content of thekamandrah was 20.42% while LC 50 values were 132.67 ppm (at 24 hours)and 70.08 ppm (at 48 hours). The acid number of the oil was 8.76 mgKOH/g oil; free fatty acid level of 4.36 mg KOH/g oil; peroxide number of3.59 meq O/100 g oil, refractive index of 1.4783; density of 0.9466 g/ml;and the color values were 73.03, 3.26, and 64.13 for L*, a*, and b*,respectively. Therefore, kamandrah oil is very potential to be used aslarvicide for controling the vector of dengue disease. Key words: Croton tiglium L., fruit maturity, kamandrah oil, larvicide