Irwan Sofia - Academia.edu (original) (raw)
Papers by Irwan Sofia
AIP conference proceedings, 2024
International Journal of Advanced Technology and Social Sciences, Feb 29, 2024
KAPASITAS PENJERAPAN DAN PEMODELAN ADSORBSI ISOTERM LANGMUIR DARI ADSORBEN KARBON AKTIF PADA PENJ... more KAPASITAS PENJERAPAN DAN PEMODELAN ADSORBSI ISOTERM LANGMUIR DARI ADSORBEN KARBON AKTIF PADA PENJERAPAN ION LOGAM FE+
PEMBERDAYAAN PEREMPUAN KELOMPOK IBU-IBU NELAYAN DI DESA PANCANA, KECAMATAN TANETE RILAU, KABUPATE... more PEMBERDAYAAN PEREMPUAN KELOMPOK IBU-IBU NELAYAN DI DESA PANCANA, KECAMATAN TANETE RILAU, KABUPATEN BARR
Seminar Nasional Hasil Penelitian & Pengabdian Kepada Masyarakat (SNP2M), Nov 30, 2020
Massamaturu Village, North Polombangkeng Subdistrict, Takalar Regency, there are 5 Livestock Farm... more Massamaturu Village, North Polombangkeng Subdistrict, Takalar Regency, there are 5 Livestock Farmer Groups. One of the largest livestock farmer groups is the Livestock Farmers Group (KTT) "Brushutui, with 75 cattle owned by 2019. The problem that arises in the cattle farmer groups in this area is the high cost of purchasing animal feed, up to approximately 70-80% of the required production costs. This is due to the high cost of ready-to-use beef feed that is sold in the market and the lack of application of technology or efforts to make your own animal feed. Cattle feed from bagasse made by fermentation using EM4 bacteria is the right solution to this problem. Cattle animal feed products as a result of Team Service activities from Ujung Pandang State Polytechnic with the Cattle Farmers Group in Massamaturu Village, Polombangkeng Utara District, Takalar Regency have succeeded in making cattle feed with a fermentation process that produces animal feed with low cost, simple process, short time, longer shelf life and higher nutrient feed products
PENINGKATAN KHARAKTERISTIK MEKANIK PLASTIK BIODEGRADABEL BERBASIS PATI UMBI UWI (DEOSCOREA ALATA)... more PENINGKATAN KHARAKTERISTIK MEKANIK PLASTIK BIODEGRADABEL BERBASIS PATI UMBI UWI (DEOSCOREA ALATA) DENGAN PENGISI PULP SELULOSA LIMBAH JERAMI PADI (ORYZA SATIVA
Seminar Nasional Hasil Penelitian & Pengabdian Kepada Masyarakat (SNP2M), Nov 30, 2020
Pyridine is a very toxic pollutant that has to be removed from waste water. In this work, adsorpt... more Pyridine is a very toxic pollutant that has to be removed from waste water. In this work, adsorption of pyridine on the waste from coal fly ash (CFA) is studied as a possible alternative for eliminating pyridine from aqueous solution. The objective of this study is to investigate the adsorption ability of coal fly ash through the effect of pH of the substrate solution (pH 4,0, 7,0 and 9,0), and the effect of pyridine adsorbate concentration in the solution (100 ; 200 ; 300 ; 400 dan 500 ppm). The absorption process was done at room temperature (29±1 o C). Pre-treatment of coal fly ash was done by washing with running water at 70 o C, to remove impurities and improve the surface of adsorbent. The results of the analysis obtained the optimum conditions for each test parameter, the optimum adsorption at pH 9, in adsorbate concentration 500 ppm in the solution. The adsorption efficiency was 31.18% with the adsorption capacity 2.5812 mg pyridine/g adsorbent of coal fly ash. The results of this study indicate that the coal fly ash adsorbent has an active surface that can adsorb the pyridine molecules effectively.
Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi ... more Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi Kecamatan Sibulue Kabupaten Bone
Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi ... more Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi Kecamatan Sibulue Kabupaten Bone
The eastern Indonesian province has coal reserves of 368.49 million tons spread in the provinces ... more The eastern Indonesian province has coal reserves of 368.49 million tons spread in the provinces of South Sulawesi, Central Sulawesi, North Maluku and Papua. Whereas South Sulawesi has coal reserves of around 231.12 million tons spread in 9 districts. The largest coal reserves in the districts of Maros, Barru, Bone and Sidrap Sidrap have explored around 20.06% of the total reserves. The remaining 79.94% is of low quality coal, making it less profitable for investors. While the need for coal energy sources for transportation and industry is experiencing a very rapid development, and only relies on high quality coal. The Low rank coal has a high water content, ash content, flying substance content and sulfur content, which will cause the coal's calorific value to be low so that the cost of burning coal per unit of calories becomes higher, and the impact of environmental pollution is also not good. To overcome this, research is carried out to improve the quality of coal or upgradin...
PROSES UP GRADING BATUBARA PATTAPA, KECAMATAN PUJANANTING KABUPATEN BARRU, SULAWESI SELATAN
IbM PEMBINAAN REMAJA DI DUSUN BU’RUNG BU’RUNG DESA PATTALASSANG, KECAMATAN PATTALASSANG, KABUPATE... more IbM PEMBINAAN REMAJA DI DUSUN BU’RUNG BU’RUNG DESA PATTALASSANG, KECAMATAN PATTALASSANG, KABUPATEN GOWA
Have been done the coating on fresh meat using 1.5% chitosan and chitosan combination with 1 mL a... more Have been done the coating on fresh meat using 1.5% chitosan and chitosan combination with 1 mL and 2 mL of clove oil added in 100 mL 1.5% chitosan solution respectively. The parameters tested on the product are total plate count (TPC), water activity (aw), and protein content. This study aims to determine the effect of adding clove oil on the age of shelf meat coated with 1.5% chitosan solution, storage of meat shelf life, and effect of meat coating by chitosan enriched with clove oil against meat aw. The results showed that coating with 1.5% chitosan with 2 mL clove oil addition could inhibit microbial growth in meat significantly with total colony on day 3 for storage of room temperature was 4.38 x 105CFU / gram, aw 0.969, protein content of 26.653%, and for the total refrigration temperature of microbial colonies on the 32th day was 3.92 x 105 CFU / gram, aw 0.968, and protein content 26.768%. The presence of chitosan coating enriched with clove oil can extend the shelf life of ...
APLIKASI LARUTAN KITOSAN UNTUK MENGURANGI KANDUNGAN ZAT PURIN (ALKALOID TOTAL) PADA BIJI MELINJO
An investigation has been conducted on the effect of the use of organic solvents of acetic acid, ... more An investigation has been conducted on the effect of the use of organic solvents of acetic acid, and ethanolwater on the characteristics of edible film chitosan from Tiger shrimp. Edible film is making with 1% acetic acid solvent and ethanol-water addition of 0, 5, 10, 15, 20%. The resulting were analyzed by physicochemical properties of densities film; mechanical analysis of elongation and tensile strength test; and thermal analysis of heat resistance. The result of this research is Deacetylation Degree (DD) of chitosan from tiger shrimp shell is 90,9% while chitosan of comparative (crab chitosan) is 95,05%, with the viscosity is 41.2 cP. The edible film obtained generally has low density and high solubility. Film density varies between 0.2469 - 0.8993 g/cm3 depending on the concentration of chitosan solution. The mechanical properties of films using 1% acetic acid solvent in the water-ethanol solution has a higher tensile strength than film without the addition of ethanol-water. T...
Pengaruh Aditif Tocoferol (Vitamin E) Terhadap Sifat-Sifat Material Dari Edible Film Kitosan
The purpose of this activity is to support the realization of program, the participation of partn... more The purpose of this activity is to support the realization of program, the participation of partners in training activities, the demonstration of the manufacture of therapeutic soap and health from citronella plants (Cymbopogon citratus). This plant can be harvested after 4-8 months of age which can be sold at a low price of around Rp 1,000 per 10 sticks. If therapy and health soap is made, it can be sold at a price of Rp. 17,000 shares are the same as the price of soap that has been circulating in the market. Some training and counseling activities will be carried out to increase the selling value of citronella plants by extracting action oil and its active ingredients into therapeutic and health soap. PKK mothers activities in Sambueja village use lemongrass as a complement to kitchen spices and process them into therapeutic and health soap for their own use or sold as family additions. Keywords: Citronella Plants , Therapeutic Soap And Health
Jurnal Bahan Alam Terbarukan
This research aims to develop bioplastic as primary packaging or edible film of chitosan biopolym... more This research aims to develop bioplastic as primary packaging or edible film of chitosan biopolymer derived from tiger prawn shells (Penaeus monodon), and to perform physicochemical and mechanical characteristics. An evaluation of the physicochemical properties of plastic films made from chitosan, by modifying the order of the different treatment processes, namely: a) DPMA (deproteination, demineralization, deacetylation), b) DMKA (demineralization, decoloration, and deacetylation) has conducted. The results of scanning FT-IR of the product shows that chitosan has identical spectrum compare of standard compound. Chitosan product from tiger prawn shells was the used as raw material for the manufacture of bioplastics. Experiments variable on the manufacture of edible film is a study of the effect of the use of different plasticizers (glycerol and sorbitol) and carboxylmethylcelullose (CMC) additives to the physicochemical, mechanical characteristics, and edible film functional. The re...
AIP conference proceedings, 2024
International Journal of Advanced Technology and Social Sciences, Feb 29, 2024
KAPASITAS PENJERAPAN DAN PEMODELAN ADSORBSI ISOTERM LANGMUIR DARI ADSORBEN KARBON AKTIF PADA PENJ... more KAPASITAS PENJERAPAN DAN PEMODELAN ADSORBSI ISOTERM LANGMUIR DARI ADSORBEN KARBON AKTIF PADA PENJERAPAN ION LOGAM FE+
PEMBERDAYAAN PEREMPUAN KELOMPOK IBU-IBU NELAYAN DI DESA PANCANA, KECAMATAN TANETE RILAU, KABUPATE... more PEMBERDAYAAN PEREMPUAN KELOMPOK IBU-IBU NELAYAN DI DESA PANCANA, KECAMATAN TANETE RILAU, KABUPATEN BARR
Seminar Nasional Hasil Penelitian & Pengabdian Kepada Masyarakat (SNP2M), Nov 30, 2020
Massamaturu Village, North Polombangkeng Subdistrict, Takalar Regency, there are 5 Livestock Farm... more Massamaturu Village, North Polombangkeng Subdistrict, Takalar Regency, there are 5 Livestock Farmer Groups. One of the largest livestock farmer groups is the Livestock Farmers Group (KTT) "Brushutui, with 75 cattle owned by 2019. The problem that arises in the cattle farmer groups in this area is the high cost of purchasing animal feed, up to approximately 70-80% of the required production costs. This is due to the high cost of ready-to-use beef feed that is sold in the market and the lack of application of technology or efforts to make your own animal feed. Cattle feed from bagasse made by fermentation using EM4 bacteria is the right solution to this problem. Cattle animal feed products as a result of Team Service activities from Ujung Pandang State Polytechnic with the Cattle Farmers Group in Massamaturu Village, Polombangkeng Utara District, Takalar Regency have succeeded in making cattle feed with a fermentation process that produces animal feed with low cost, simple process, short time, longer shelf life and higher nutrient feed products
PENINGKATAN KHARAKTERISTIK MEKANIK PLASTIK BIODEGRADABEL BERBASIS PATI UMBI UWI (DEOSCOREA ALATA)... more PENINGKATAN KHARAKTERISTIK MEKANIK PLASTIK BIODEGRADABEL BERBASIS PATI UMBI UWI (DEOSCOREA ALATA) DENGAN PENGISI PULP SELULOSA LIMBAH JERAMI PADI (ORYZA SATIVA
Seminar Nasional Hasil Penelitian & Pengabdian Kepada Masyarakat (SNP2M), Nov 30, 2020
Pyridine is a very toxic pollutant that has to be removed from waste water. In this work, adsorpt... more Pyridine is a very toxic pollutant that has to be removed from waste water. In this work, adsorption of pyridine on the waste from coal fly ash (CFA) is studied as a possible alternative for eliminating pyridine from aqueous solution. The objective of this study is to investigate the adsorption ability of coal fly ash through the effect of pH of the substrate solution (pH 4,0, 7,0 and 9,0), and the effect of pyridine adsorbate concentration in the solution (100 ; 200 ; 300 ; 400 dan 500 ppm). The absorption process was done at room temperature (29±1 o C). Pre-treatment of coal fly ash was done by washing with running water at 70 o C, to remove impurities and improve the surface of adsorbent. The results of the analysis obtained the optimum conditions for each test parameter, the optimum adsorption at pH 9, in adsorbate concentration 500 ppm in the solution. The adsorption efficiency was 31.18% with the adsorption capacity 2.5812 mg pyridine/g adsorbent of coal fly ash. The results of this study indicate that the coal fly ash adsorbent has an active surface that can adsorb the pyridine molecules effectively.
Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi ... more Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi Kecamatan Sibulue Kabupaten Bone
Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi ... more Pengenalan Teknologi Pelapisan (Coating) Kitosan Bagi Petambak Ikan Bandeng di Desa Malluse Tasi Kecamatan Sibulue Kabupaten Bone
The eastern Indonesian province has coal reserves of 368.49 million tons spread in the provinces ... more The eastern Indonesian province has coal reserves of 368.49 million tons spread in the provinces of South Sulawesi, Central Sulawesi, North Maluku and Papua. Whereas South Sulawesi has coal reserves of around 231.12 million tons spread in 9 districts. The largest coal reserves in the districts of Maros, Barru, Bone and Sidrap Sidrap have explored around 20.06% of the total reserves. The remaining 79.94% is of low quality coal, making it less profitable for investors. While the need for coal energy sources for transportation and industry is experiencing a very rapid development, and only relies on high quality coal. The Low rank coal has a high water content, ash content, flying substance content and sulfur content, which will cause the coal's calorific value to be low so that the cost of burning coal per unit of calories becomes higher, and the impact of environmental pollution is also not good. To overcome this, research is carried out to improve the quality of coal or upgradin...
PROSES UP GRADING BATUBARA PATTAPA, KECAMATAN PUJANANTING KABUPATEN BARRU, SULAWESI SELATAN
IbM PEMBINAAN REMAJA DI DUSUN BU’RUNG BU’RUNG DESA PATTALASSANG, KECAMATAN PATTALASSANG, KABUPATE... more IbM PEMBINAAN REMAJA DI DUSUN BU’RUNG BU’RUNG DESA PATTALASSANG, KECAMATAN PATTALASSANG, KABUPATEN GOWA
Have been done the coating on fresh meat using 1.5% chitosan and chitosan combination with 1 mL a... more Have been done the coating on fresh meat using 1.5% chitosan and chitosan combination with 1 mL and 2 mL of clove oil added in 100 mL 1.5% chitosan solution respectively. The parameters tested on the product are total plate count (TPC), water activity (aw), and protein content. This study aims to determine the effect of adding clove oil on the age of shelf meat coated with 1.5% chitosan solution, storage of meat shelf life, and effect of meat coating by chitosan enriched with clove oil against meat aw. The results showed that coating with 1.5% chitosan with 2 mL clove oil addition could inhibit microbial growth in meat significantly with total colony on day 3 for storage of room temperature was 4.38 x 105CFU / gram, aw 0.969, protein content of 26.653%, and for the total refrigration temperature of microbial colonies on the 32th day was 3.92 x 105 CFU / gram, aw 0.968, and protein content 26.768%. The presence of chitosan coating enriched with clove oil can extend the shelf life of ...
APLIKASI LARUTAN KITOSAN UNTUK MENGURANGI KANDUNGAN ZAT PURIN (ALKALOID TOTAL) PADA BIJI MELINJO
An investigation has been conducted on the effect of the use of organic solvents of acetic acid, ... more An investigation has been conducted on the effect of the use of organic solvents of acetic acid, and ethanolwater on the characteristics of edible film chitosan from Tiger shrimp. Edible film is making with 1% acetic acid solvent and ethanol-water addition of 0, 5, 10, 15, 20%. The resulting were analyzed by physicochemical properties of densities film; mechanical analysis of elongation and tensile strength test; and thermal analysis of heat resistance. The result of this research is Deacetylation Degree (DD) of chitosan from tiger shrimp shell is 90,9% while chitosan of comparative (crab chitosan) is 95,05%, with the viscosity is 41.2 cP. The edible film obtained generally has low density and high solubility. Film density varies between 0.2469 - 0.8993 g/cm3 depending on the concentration of chitosan solution. The mechanical properties of films using 1% acetic acid solvent in the water-ethanol solution has a higher tensile strength than film without the addition of ethanol-water. T...
Pengaruh Aditif Tocoferol (Vitamin E) Terhadap Sifat-Sifat Material Dari Edible Film Kitosan
The purpose of this activity is to support the realization of program, the participation of partn... more The purpose of this activity is to support the realization of program, the participation of partners in training activities, the demonstration of the manufacture of therapeutic soap and health from citronella plants (Cymbopogon citratus). This plant can be harvested after 4-8 months of age which can be sold at a low price of around Rp 1,000 per 10 sticks. If therapy and health soap is made, it can be sold at a price of Rp. 17,000 shares are the same as the price of soap that has been circulating in the market. Some training and counseling activities will be carried out to increase the selling value of citronella plants by extracting action oil and its active ingredients into therapeutic and health soap. PKK mothers activities in Sambueja village use lemongrass as a complement to kitchen spices and process them into therapeutic and health soap for their own use or sold as family additions. Keywords: Citronella Plants , Therapeutic Soap And Health
Jurnal Bahan Alam Terbarukan
This research aims to develop bioplastic as primary packaging or edible film of chitosan biopolym... more This research aims to develop bioplastic as primary packaging or edible film of chitosan biopolymer derived from tiger prawn shells (Penaeus monodon), and to perform physicochemical and mechanical characteristics. An evaluation of the physicochemical properties of plastic films made from chitosan, by modifying the order of the different treatment processes, namely: a) DPMA (deproteination, demineralization, deacetylation), b) DMKA (demineralization, decoloration, and deacetylation) has conducted. The results of scanning FT-IR of the product shows that chitosan has identical spectrum compare of standard compound. Chitosan product from tiger prawn shells was the used as raw material for the manufacture of bioplastics. Experiments variable on the manufacture of edible film is a study of the effect of the use of different plasticizers (glycerol and sorbitol) and carboxylmethylcelullose (CMC) additives to the physicochemical, mechanical characteristics, and edible film functional. The re...