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THE EFFECT OF AVERRHOA BILIMBI EXTRACT AS NATURAL COAGULANTS ON THE CHARACTERISTICS OF RUBBER Feerzet Achmad; Deviany Deviany
Konversi Vol 11, No 1 (2022): APRIL 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v11i1.12841

Rubber is one of Indonesia’s main commodities resulting in a considerable number of people relying their incomes as rubber farmers. However, unstable rubber price proves to be a problem for these farmers. One solution to be offered is an alternative natural coagulant which is easily obtainable and able to produce good quality rubbers. Averrhoa bilimbi with its known acidic properties shows a prospect as a natural coagulant. This study aims to determine the effect of variation in the concentration of Averrhoa bilimbi extract on the characteristics of rubber clone IRR 118 as well as the advantages and disadvantages of using the extract as natural coagulant. The rubber clone used was IRR 118 with various Averrhoa bilimbi etracts of 20%, 40%, 60%, 80% and 100% and 2% synthetic chemical coagulant formic acid as comparison. The coagulant volume was 20 ml for each concentration and the volume of latex used was 100 ml. The characteristics of the rubber tested were TSC, DRC, Po and PRI. The results showed that the highest value of dry rubber content (DRC) was at 100% natural coagulant concentration which is 34% with a total solid content (TSC) value of 37% while the highest Plasticity Retention Index (PRI) value was at 100% concentration, which is 92%. This study exhibits the use of natural coagulant from Averrhoa bilimbi has met the Indonesian Rubber Standard SNI 06-1903-2000. Therefore, Averrhoa bilimbi extract can be used as an alternative coagulant for rubber latex.

Implementasi Pupuk Cair Organik Masaro Terhadap Produktivitas Jagung Manis di Sabah Balau Dennis Farina Nury; Arysca Wisnu Satria; Deviany Deviany; Mustafa Mustafa; Akhmad Zainal Abidin
Journal of Industrial Community Empowerment Vol 2, No 1 (2023): Published in April 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i1.150

This community service activity aims to increase corn production in Sabah Balau using POCI (Special Liquid Organic Fertilizer) products from Masaro. POCI is used as an organic fertilizer and its farming produces a higher production number, higher quality product, faster production rate while its production cost is lower. On the other hand, the problem of Indonesia is that national agriculture is stuck in inorganic chemical fertilization that has an impact on accelerating the degradation of agricultural land fertility. This matter can occur due to various problems, especially the culture of using chemical fertilizers that have been going on for too long. The activities carried out include socializing about recycling organic waste with POCI Masaro, conducting outreach activities about the benefits of POCI Masaro and practicing composting for corns. The results showed the enthusiasm of the community in participating to make POCI Masaro and demonstration plots. The output of this activity: Increased corn production, increased of knowledge and skills of community in making and applying POCI Masaro on plant and motivation of farmers to independently develop alternative organic fertilizers that are in accordance with farmers' needs.

Pengaruh Penambahan Ekstrak Jeruk Purut (Cytrus hitrix D.C) Sebagai Koagulan Alami Terhadap Karakteristik Karet Wika Atro Auriyani; Feerzet Achmad; Deviany Deviany; Muhammad Ikhwan Ardian; Rizky Dimas Prasetyo; Aldillah Herlambang; Musa Musa
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.85

Natural rubber is a plantation commodity that has a significant role in the country's economy. This study aims to determine the effect of the natural coagulant extract of kaffir lime with centrifugation and non-centrifugation treatment on the coagulation process, pH and coagulation time, characteristics of rubber clone IRR 118 and comparison of the quality of rubber with 2% formic acid chemical coagulant. The volume of coagulant used was 75 mL mixed with 150 mL of latex, so that coagulation occurred and produced coagulum. Then the resulting coagulum is analyzed for the characteristics of the rubber to determine the quality of the rubber. Characteristic analysis carried out was Dry Rubber Content (DRC), Initial Plasticity (Po), Plasticity Retention Index (PRI), Mooney Viscosity, ash content, impurities content, volatile matter content, and nitrogen content. The results showed that the natural coagulant extract of kaffir lime could coagulate latex, lowering the pH of latex thereby speeding up coagulation time. From the rubber characteristic test using kaffir lime natural coagulant it complies with SNI 06-1903-2017 SIR 20. The quality of rubber produced from using kaffir lime natural coagulant extract as a coagulant can equate the quality of rubber produced by using 2% formic acid chemical coagulant, but coagulant The natural ingredients used have drawbacks, namely the availability of seasonal fruit, and the need for treatment before being used as a coagulant.

Pelatihan Pemanfaatan Limbah Perkebunan Kelapa Sawit sebagai Bahan Baku Baglog Budidaya Jamur Tiram di Desa Sabah Balau, Lampung Selatan Khaerunissa Anbar Istiadi; Erma Suryanti; Hida Arliani Nur Anisa; Arysca Wisnu Satria; Deviany Deviany; Yuni Sukmawati; Dini Meilinda; Andreas Dwi Nugroho; Triya Yuli Andini; Aji Hafidz Talaga
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 4 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i4.6601

Kelapa sawit sebagai salah satu komoditas perkebunan unggulan di Indonesia menghasilkan limbah berupa pelepah selama proses produksi kelapa sawit. Desa Sabah Balau, Lampung Selatan merupakan kawasan yang dikelilingi oleh perkebunan karet sebagai komoditas utama serta tanaman kelapa sawit yang diusahakan masyarakat sekitar. Pengolahan limbah pelepah sawit berpeluang menyelesaikan permasalahan lingkungan serta menghasilkan nilai ekonomi bila diproses menjadi produk yang bernilai tinggi, yaitu media tanam jamur tiram (baglog). Pemberian informasi mengenai potensi limbah pelepah kelapa sawit di Desa Sabah Balau dilakukan melalui Pengabdian Kepada Masyarakat yang terdiri dari empat tahap, yaitu tahap perencanaan dan persiapan, tahap pelaksanaan, serta tahap evaluasi. Tahap pelaksanaan kegiatan dilakukan melalui sosialisasi dan praktik. Materi sosialisasi terintegrasi dengan praktik meliputi bahan baku dan produksi baglog, proses sterilisasi dan inokulasi serta cara budidaya jamur tiram yang baik. Kegiatan pengabdian kepada masyarakat yang telah dilakukan di Desa Sabah Balau berupa sosialisasi dan praktik pembuatan media tanam jamur tiram (baglog) meningkatkan pengetahuan masyarakat mengenai potensi limbah pelepah kelapa sawit sebagai bahan baku baglog, proses pembuatan baglog, serta proses budidaya jamur tiram.

Pengolahan Kelapa Menjadi Virgin Coconut Oil (VCO) dengan Metode Fermentasi Sederhana Dennis Farina Nury; Yunita Fahni; Reni Yuniarti; Feerzet Achmad; Deviany Deviany; Yeni Variyana
Journal of Industrial Community Empowerment Vol 2, No 2 (2023): Published in October 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i2.215

Coconut plant is frequently referred to as the plant of life since every part of it may be utilized and turned into a product. One of the commercial processed product by coconut is virgin coconut oil (VCO), which has many benefits to health properties. VCO is extracted from coconut milk from coconut fresh. The introduction of virgin oil (VCO) to partners aimed about VCO's advantages and development of appropriate technology that can be applied to local communities in Negeri Katon, Lampung Selatan. This community service activity program introduced fermentation method using yeast to convert coconut milk into VCO. The activity were conducted in three steps: i.e presentation of VCO process production and discussion, demonstration of making VCO together, and evaluation based on pre and post-test form results. Several analysis have been conducted including the percentage yield, density, viscosity and pH of the VCO. The evaluation of this activity was obtained from pre and post-test results. The results of the pre-test showed that among 50% the people of Negeri Katon really needs to the activity of making VCO by fermentation together. Based on the highest post-test result of 91%, it can be concluded that the VCO-making activities are very useful. Further development of activities, such as intensive practice in making VCO and training in packaging and selling VCO is very needed. Based on the results obtained, it can be concluded that the activity of making VCO by fermentation for the community of Negeri Katon is very necessary to be carried out in terms of utilizing coconut into VCO and creating business opportunities for the future.

Pelatihan Pemanfaatan Limbah Perkebunan Kelapa Sawit sebagai Bahan Baku Baglog Budidaya Jamur Tiram di Desa Sabah Balau, Lampung Selatan Khaerunissa Anbar Istiadi; Erma Suryanti; Hida Arliani Nur Anisa; Arysca Wisnu Satria; Deviany Deviany; Yuni Sukmawati; Dini Meilinda; Andreas Dwi Nugroho; Triya Yuli Andini; Aji Hafidz Talaga
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 4 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i4.6601

Kelapa sawit sebagai salah satu komoditas perkebunan unggulan di Indonesia menghasilkan limbah berupa pelepah selama proses produksi kelapa sawit. Desa Sabah Balau, Lampung Selatan merupakan kawasan yang dikelilingi oleh perkebunan karet sebagai komoditas utama serta tanaman kelapa sawit yang diusahakan masyarakat sekitar. Pengolahan limbah pelepah sawit berpeluang menyelesaikan permasalahan lingkungan serta menghasilkan nilai ekonomi bila diproses menjadi produk yang bernilai tinggi, yaitu media tanam jamur tiram (baglog). Pemberian informasi mengenai potensi limbah pelepah kelapa sawit di Desa Sabah Balau dilakukan melalui Pengabdian Kepada Masyarakat yang terdiri dari empat tahap, yaitu tahap perencanaan dan persiapan, tahap pelaksanaan, serta tahap evaluasi. Tahap pelaksanaan kegiatan dilakukan melalui sosialisasi dan praktik. Materi sosialisasi terintegrasi dengan praktik meliputi bahan baku dan produksi baglog, proses sterilisasi dan inokulasi serta cara budidaya jamur tiram yang baik. Kegiatan pengabdian kepada masyarakat yang telah dilakukan di Desa Sabah Balau berupa sosialisasi dan praktik pembuatan media tanam jamur tiram (baglog) meningkatkan pengetahuan masyarakat mengenai potensi limbah pelepah kelapa sawit sebagai bahan baku baglog, proses pembuatan baglog, serta proses budidaya jamur tiram.

THE EFFECT OF NATURAL PRESERVATIVE EXTRACTS ON THE PHYSICOCHEMICAL AND ANTIOXIDANT ACTIVITY OF COCONUT SAP Desi Riana Saputri; Yuniar Luthfia Listyadevi; Galeh Widharma; Ratih Ainun Mardiyah; Muhammad Triyogo Adiwibowo; Wika Atro Auriyani; Yunita Fahni; Damayanti Damayanti; Andri Sanjaya; Feerzet Achmad; Deviany Deviany; Aldillah Herlambang; Edwin Rizki Safitra
JURNAL INTEGRASI PROSES Vol 13, No 2 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i2.25689

Coconut sap produced from coconut trees has a short shelf life due to contamination and undergoes natural fermentation. One way to extend the shelf life of coconut sap is by adding preservatives. This research aims to determine the effect of adding natural preservative extracts on the antioxidant value, pH, sugar, and alcohol content of coconut sap by adding natural preservatives. There are five samples: pure sap (NM); sap with sugar lime (NK); sap with sugar lime and cinnamon extract (NKM); sap with sugar lime and mango leaf extract (NDM); sap with sugar lime and noni leaf extract (NKD). The study was conducted by extracting natural preservatives, namely cinnamon extract, mango leaves extract, and noni leaves extract, using the maceration method. These natural preservative extracts were mixed with Ca(OH)2 in a 1:1 ratio and dissolved in distilled water. The mixture was then mixed with the sap. The results of the antioxidant test showed that the IC50 values of the NM, NK, NKM, NDM, and NKD samples were 52.911, 144.409, 26.043, 49.275, and 24.21 ppm, respectively. The highest pH value was found in the NK sample at 13.8, and the lowest in the NM sample at 3.8. The lowest sugar content was in the NM and NDK samples, with 10.6 and 14.6%. The highest alcohol content was found in the NK and NKD samples, with alcohol contents of 14.80% and 14.20%. This study shows that adding natural preservatives such as cinnamon, mango leaves, and noni leaves can increase the antioxidant activity of coconut sap, raise its pH, and maintain its sugar content to prevent it from being reduced to alcohol.

Utilization of Durian Peel as Adsorbent in Tofu Industrial Wastewater Treatment Dennis Farina Nury; Misbahul Huda; Hendri Kurniawan; Tulusma Basana Simaremare; Abdul Halim; Alfira Putri Damayanti; Didik Supriyadi; Deviany Deviany; Feerzet Achmad; Muhammad Zulfikar Luthfi; Andri Saputra
Industrial Innovation Vol. 2 No. 1 (2025): Industrial Innovation
Publisher : Politeknik ATK Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/vafm5b47

Tofu industry wastewater in Indonesia contains high concentrations of organic pollutants, especially chemical oxygen demand (COD), which often exceed regulatory discharge limits due to the lack of effective treatment systems in small-scale production units. This study was conducted to evaluate the performance of durian peel as a low-cost adsorbent for COD removal. The adsorbent was prepared through carbonization at 300°C for 1 hour and activated using 30% H₃PO₄ for 24 hours. Batch adsorption experiments were conducted by varying contact time (0–150 minutes) and adsorbent dosage (0.2–1.0 g) at constant shaking speed (150 rpm). The result showed that activated durian peel demonstrated potential as an adsorbent for tofu wastewater, though its iodine number fell below the SNI 06-3730-1995 standard. The optimum condition was achieved at 90 minutes and 0.6 g adsorbent, resulting in 85.75% COD removal. Adsorption equilibrium data were analysis using Langmuir and Freundlich isotherm models. The Freundlich model provided a better fit (R² = 0.7663), indicating multilayer adsorption on a heterogeneous surface. These findings confirm the potential of durian peel as an effective biosorbent for tofu wastewater treatment under optimal adsorption conditions.

PENGARUH MASSA KARBON AKTIF DAN KONSENTRASI ADSORBAT DALAM PENYERAPAN ZAT WARNA METILEN BLUE Dennis Nury; Muhammad Zulfikar Luthfi; Deviany Deviany; Feerzet Achmad; Jabosar Ronggur Hamonangan Panjaitan
IONTech Journal Vol. 4 No. 2 (2023): Agustus 2023
Publisher : Institut Sains dan Teknologi Al-Kamal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62702/ion.v4i2.89

In this study, the effect of activated carbon mass and methylene blue solution concentration on adsorption capacity, the length of time required to reach equilibrium, and isothermal modeling of activated carbon material in the adsorption process were studied. The variables used are the mass of activated carbon as much as 100 mg, 75 mg, and 50 mg and the concentration of methylene blue solution of 20, 40, 60, 80, and 100 ppm. The adsorption process in the three mass variations occurred at an optimum contact time of 80 and 90 minutes with an adsorption percentage of 99%. Adsorption of methylene blue dye by activated carbon from durian peel follows Freundlich isothermal modeling with a K value of 15846.44 mg/g and 1/n of 23.666 which shows an indicator of concentration dependence of the amount of energy associated with the adsorption process.

The effect of activated carbon on the adsorption of coconut shell liquid smoke on the coagulation process of latex clone PB 260 Feerzet Achmad; Deviany Deviany; Asyifa Duwiyan Nuril Huda; Hottua Ernest Fortunatus; Arysca Wisnu Satria; Reni Yuniarti; Wika Atro Aryani; Ummul Habibah Hasyim
Konversi Vol 15, No 1 (2026): APRIL 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v15i1.25704

This study investigated the effectiveness of coconut shell–derived liquid smoke (CLS) and activated carbon–treated liquid smoke (CLSC) as natural coagulants for natural rubber latex clone PB 260, compared with 2% formic acid (FA). Rubber quality was assessed based on Total Solid Content (TSC), Dry Rubber Content (DRC), initial plasticity (Po), Plasticity Retention Index (PRI), ash content, dirt content, volatile matter, and Mooney viscosity according to the SNI 06-1903-2017 standard for Indonesian Standard Rubber (SIR 20). Experiments were conducted using fresh latex from clone PB 260 under the D3 tapping system, with 150 mL of latex treated with each coagulant. FA produced the fastest coagulation time (3.39 min), while CLS and CLSC required 4.37 and 4.29 min, respectively. CLS showed the highest DRC (15.33%), whereas CLSC provided better rubber stability with the highest PRI (85.83%) and high Mooney viscosity. All coagulants met SIR 20 limits for ash, dirt, and volatile matter, although Po values remained below the standard.

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