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PENGAMBILAN OLEORESIN DARI LIMBAH AMPAS JAHE INDUSTRI JAMU (PT. SIDO MUNCUL) DENGAN METODE EKSTRAKSI Alyssa Nahla Amir; Puspita Firsty Lestari; Indro Sumantri
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 3, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (700.753 KB)

Utilization of ginger pulp waste from herbal medicine industry in Indonesia currently used for making fertilizer and fuel, whereas the ginger pulp still contain high oleoresin. It is expected that the results of this study may utilize the ginger dregs of herbal medicine industry to be oleoresin products, suggest the appropriate extraction techniques, affecting operation variables and the optimum conditions for batch extraction of ginger oleoresins. This research used extraction method with various solvents in batch. Fixed variable used in this study is the weight of ginger 50 gr, volume of solvents 300 mL, extraction time 5.5 hour and stirring speed of 450 rpm. While the change variable is extraction temperature 30oC, 40oC, 50 oC and 60 oC and types of solvent (ethanol, n-Hexane and acetone). As the result from the research that the type of solvent and temperature variations affect oleoresin extracted. The optimum extraction conditions to produce a high yield of ginger oleoresin and good quality obtained in the combined treatment of ethanol solvent type, time of 5.5 hours and a temperature of 40oC with oleoresin concentration of 12.2%, 0.955 density (g/ ml) and a refractive index of 1.370.

Kinetic Study of Anaerobic Digestion of Ketchup Industry Wastewater in a Three-stages Anaerobic Baffled Reactor (ABR) Indro Sumantri; Budiyono Budiyono; Purwanto Purwanto
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

The anaerobic digestion of the ketchup industry’s wastewater in a three-stage 60 L capacity baffled reactor has been studied. The effect of concentrations of the initial chemical oxygen demand (2727.3-12086.7 mg/L), on the ABR performance and kinetic models were investigated. The ABR performance was evaluated by measuring the concentrations of each compartment of the COD, calculating its percentage removal, and the acquired data were fitted to the kinetic models. From the initial input, the three-stage ABR successfully removed 90 % of COD, for the initial COD until the concentration was 5324.6 mg/L it achieved stationary phase with HRT 5-10 days, while for initial COD until the concentration was 12086.7 mg/L is attained, the stationary was at 10 days. The kinetic model of second order Grau was suitable for the data, with k2 of 0.6061 d-1 and R2 of 0.9955.

Optimization of Monoglycerides Production Using KF/CaO-MgO Heterogeneous Catalysis Luqman Buchori; Didi Dwi Anggoro; Indro Sumantri; Riko Rikardo Putra
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

The production of monoglyceride or monoacylglycerol (MAG) from triglycerides and glycerol has been studied. The purpose of this research was to study the effect of using KF/CaO-MgO catalyst on MAG production with batch reactor. The effect of reaction temperature, reaction time, and catalyst loading was investigated using Response Surface Methods (RSM). The reaction temperature, reaction time, and catalyst loading were varied at 200-220 ºC, 2-4 hours, and 0.1-0.3 % w/w, respectively. The maximum yield of monoglyceride 41.58% was achieved the optimum conditions of catalyst loading of 0.19 % (w/w), reaction temperature of 208.4 ºC, and reaction time of 3.20 hours.

Kinetic of Biogas Production in a Batch Anaerobic Digestion Process with Interference of Preservative Material of Sodium Benzoate Indro Sumantri; Hadiyanto Hadiyanto
Bulletin of Chemical Reaction Engineering & Catalysis 2020: BCREC Volume 15 Issue 3 Year 2020 (December 2020)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.15.3.9366.898-906

Sodium benzoate is a preservative compounds which are widely used for both food and beverage products. The treatment of waste water containing this compound was normally conducted in a anaerobic digestion (AD) using a batch reactor system at a room temperature. The anaerobic process eventually produced biogas which can be used for bioenergy. This research was aimed to evaluate the production of biogas from by synthetic solution models containing sodium benzoate (SB). The experiment was performed in a variation of Mixed Liquor Suspended Solid (MLSS) of 4.8 and 7.2 g/L, and initial sodium benzoate concentration of 400, 600, and 800 mg/L. The digestion was performed at 60 days, while the biogas content was measured every 2 days. The results indicated a reduction in the cumulative biogas by the addition of sodium benzoate, compared to the control condition. Moreover, the decrease in organic loading rate (OLR) of SB in wastewater follows the first order kinetic with kinetic rate constant (k) was 0.0432 to 0.1254 (day−1) for MLSS of 4.8 g/L and 0.0276 to 0.0372 (day−1) for 7.2 g/L MLSS. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Kajian Karakteristik Beras Analog Berbahan Dasar Tepung dan Pati Ubi Ungu (Ipomea batatas) Noer Abyor Handayani; Heri Cahyono; Wiwit Arum; Indro Sumantri; Purwanto Purwanto; Danny Soetrisnanto
Jurnal Aplikasi Teknologi Pangan Vol 6, No 1 (2017): Februari 2017
Publisher : Indonesian Food Technologists

Pengembangan diversifikasi sumber pangan selain beras yang berpotensi sebagai makanan pokok memungkinkan ketahanan pangan dapat diwujudkan. Salah satu pangan alternatif yaitu beras analog yang memiliki karakteristik fisik menyerupai beras tetapi unggul dalam kandungan gizinya. Beras analog merupakan tiruan beras yang terbuat dari bahan-bahan seperti umbi-umbian dan serealia. Ubi ungu (Ipomea batatas) adalah salah satu potensi lokal pangan yang layak dikembangkan sebagai bahan baku beras analog. Penelitian ini bertujuan untuk mengkaji pengaruh perbandingan komposisi tepung pati ubi ungu terhadap nilai gizi, sifat fisikokimia, sifat hedonik beras analog dibandingkan dengan beras padi dan menentukan komposisi bahan baku terbaik dari beras analog ubi ungu. Berdasarkan nilai rata-rata hasil analisis hedonik secara keseluruhan, diperoleh sampel C (80% tepung, 20% pati) sebagai beras analog dengan nilai terbaik. Pada sampel ini, beras analog memiliki rasa, tekstur, dan kenampakan yang menyerupai beras pada umumnya, walaupun masih beraroma ubi ungu. Kandungan amilosanya sebesar 15,56% termasuk ke dalam beras yang tidak pera dan tidak pulen. Kadar karbohidratnya sebesar 78,9764% lebih kecil dibandingkan pada beras Delangu. Sedangkan, kadar proteinnya lebih besar dibandingkan beras Delangu yaitu 6,7337%. Densitas kamba beras analog pada sampel C sebesar 0,638 gr/ml lebih rendah dibandingkan beras Delangu yaitu 0,81 gr/ml. Sehingga dapat disimpulkan bahwa nilai gizi, sifat fisikokimia dan sifat hedonik beras analog sudah mendekati bahkan untuk beberapa parameter lebih unggul dibandingkan beras Delangu.The increasing number of rice imports show that local production has not met Indonesian demand. Therefore, food alternative similar to rice with high nutrient content could be the solution. Analog rice resembles and was made from various tubers with similar nutrient composition to rice. Purple sweet potato (Ipomea batatas) has the potential of it. This research aims to study the effects of nutritional value, psychochemical, and hedonic characteristic of analog rice compared to rice and determine the best raw material composition of rice derived from purple sweet potatoes. Based on average of hedonic test results, sample C (80% flour, 20% starch) is the best analog rice. It has texture, flavor, and appearance, resembled to rice with slight scent of purple sweet potatoes. The 15.56% amylose content is not considered as either pera or pulen. Carbohydrate levels 78.9764% were smaller than Delangu rice. While the protein levels 6.7337% were bigger than Delangu rice. Bulk density of sample C was 0,638 gr/ml, smaller than of Delangu rice 0.81 gr/ml. In conclusion, nutritional value, psychochemical, and hedonic characteristic of analog rice were close or even better than Delangu rice.

PROGRAM KEMITRAAN MASYARAKAT MELALUI USAHA PENINGKATAN KUALITAS PRODUK DAN INOVASI MANAJEMEN PEMASARAN BAGI KELOMPOK PENGRAJIN KERIPIK GADUNG DI DESA NYATNYONO KECAMATAN UNGARAN BARAT KABUPATEN SEMARANG Indro Sumantri; Kiryanto Kiryanto; Nurwantoro Nurwantoro; Ari Wibawa Budi Santosa
Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Vol 2, No 2 (2020)
Publisher : Fakultas Teknik Universitas Diponegoro

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Desa Nyatnyono merupakan salah satu Desa/Kelurahan yang ada di kecamatan Ungaran Barat, kabupaten Semarang , dimana tanah ladang ditanami berbagai jenis tumbuhan, diantaranya ubi gadung. Potensi tanaman ubi gadung di Desa Nyatnyono cukup besar mengingat ladang yang ada cukup luas 27 % dari lahan produktif. Oleh karena itu di Desa Nyatnyono menjadi sentra produksi keripik gadung dengan jumlah pengrajin 10 orang. sedangkan keripik gadung yang dihasilkan masih dalam bentuk barang setengah jadi. Tujuan yang disepakati bersama mitra diprioritaskan meliputi: permasalahan kuantitas/kapasitas produk keripik gadung yang masih rendah dan kualitas masih butuh ditingkatkan dalam bentuk ukuran dan rasa dalam kemasan barang siap konsumsi serta pembentukan kelompok pengrajin gadung Tujuan lainnya adalah meningkat kualitas produk dan membentuk pula organisasi yang menaungi UKM pengrajin keripik gadung. Target yang ingin dicapai kapasitas produksi pada produk keripik gadung dan kualitas produksi pada proses pengolahan produk keripik gadung dalam rasa, ukuran, bentuk keripik gadung. Metode yang digunakan untuk menyelesaikan masalah dengan melakukan analisis identifikasi dan evaluasi awal UKM sasaran, perancangan berbagai peralatan, pembuatan, demosntrasi dan pengaplikasian berbagai paralatan, pengenalan dan pelatihan, pendampingan serta monitoring UKM mitra. Tahapan-tahapan yang telah dilakukan dalam program PKM ini adalah: desain mesin perajang, mesin oven pengering, pembuatan mesin perajang, mesin pengering dan pengadaan mesin kemasan manual (hand sealer). Kegiatan berikutnya adalah proses uji coba mesin tersebut di bengkel dan dilakukan uji coba produksi di pengrajin mitra PKM untuk mengetahui proses produksi, dan kualitas produk keripik gadung. Selanjutnya dilakukan pemberian aneka rasa gadung dengan 4 rasa dan desain dan pembuatan kemasannya. Kegiatan tersebut diatas dilakukan bersama antara Tim pelaksana PKM dengan mitra. Harga jual keripik gadung di pengrajin Rp 8.000, sehingga ada nilai keuntungan sebesar 18,75 %. terhadap nilai jualnya. Pengusulan ijin dari kantor Dinkes kabupaten Semarang berupa P-IRT (Pangan-Industri Rumah Tangga), sosialisasi, pemasaran produk gadung siap saji melalui cara langsung maupun online.Luaran program pengabdian PKM adalah: 1) Produk keripik gadung aneka rasa, 2) Publikasi pada media 3) video kegiatan PKM dan 4) Artikel ilmiah dipublikasikan pada jurnal nasional.

IBM KELOMPOK USAHA KERIPIK GADUNG MELALUI PENINGKATAN KUALITAS PRODUK DAN MANAJEMEN PEMASARAN DI UNGARAN BARAT KABUPATEN SEMARANG Deddy Chrismianto; Kiryanto Kiryanto; Indro Sumantri
ABDIMAS UNWAHAS Vol 3, No 1 (2018)
Publisher : Universitas Wahid Hasyim Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/abd.v3i1.2232

Keripik gadung adalah makanan spesial terbuat dari umbi gadung yang melalui proses produksi yang panjang dan rumit, kemudian dijemur sampai kering dan selanjutnya digoreng dan dikemas. Desa Gogik merupakan salah satu desa di kecamatan Ungaran Barat, berada dilereng gunung ungaran sebelah timur dengan potensi tanaman umbi gadung cukup besar. Oleh karena itu di desa Gogik menjadi sentra produksi keripik gadung berjumlah pengrajin 11 orang. Permasalahan yang dihadapi mitra adalah kuantitas produk keripik gadung yang masih rendah dan kualitas perlu ditingkatkan Produk keripik gadung yang dihasilkan masih dalam bentuk barang ½ jadi. Program IbM ini bertujuan untuk membantu penyelesaian yaitu meningkat kapasitas produksi dan kualitas produk keripik gadung dalam bentuk ukuran dan aneka rasa. Metode yang digunakan untuk menyelesaikan masalah dengan perancangan berbagai peralatan, pembuatan, pengaplikasian peralatan dan produksi keripik gadung aneka rasa, membentuk organisasi yang UKM pengrajin keripik gadung. Hasil yang diperoleh adalah: desain dan pembuatan mesin perajang & oven pengering, dan mesin kemasan manual (hand sealer). Proses pemberian aneka rasa keripik gadung dengan 4 rasa. Pembentukan organisasi kelompok pengrajin gadung “BAROKAH” dengan ketua Ibu Muktiatun dengan 12 anggota, yang bekerjasama dengan BUMDES “ Rejomulo”. Harga jual keripik gadung ½ jadi adalah Rp 30.000/kg sedangkan keripik gadung aneka rasa di pengrajin harga Rp 70.000/kg, sehingga ada nilai tambah keuntungan bersih sebesar Rp 15.000/kg atau 21 %. terhadap nilai jualnya. Luaran program IbM adalah: 1) Mesin perajang elektrik & Oven pengering, 2) Keripik gadung aneka rasa, 3) Artikel ilmiah.Kata kunci : Keripik gadung aneka rasa, mesin perajang, oven pengering

Kinetic Study of Anaerobic Digestion of Ketchup Industry Wastewater in a Three-stages Anaerobic Baffled Reactor (ABR) Indro Sumantri; Budiyono Budiyono; Purwanto Purwanto
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.2.2838.326-335

The anaerobic digestion of the ketchup industry’s wastewater in a three-stage 60 L capacity baffled reactor has been studied. The effect of concentrations of the initial chemical oxygen demand (2727.3-12086.7 mg/L), on the ABR performance and kinetic models were investigated. The ABR performance was evaluated by measuring the concentrations of each compartment of the COD, calculating its percentage removal, and the acquired data were fitted to the kinetic models. From the initial input, the three-stage ABR successfully removed 90 % of COD, for the initial COD until the concentration was 5324.6 mg/L it achieved stationary phase with HRT 5-10 days, while for initial COD until the concentration was 12086.7 mg/L is attained, the stationary was at 10 days. The kinetic model of second order Grau was suitable for the data, with k2 of 0.6061 d-1 and R2 of 0.9955.

Optimization of Monoglycerides Production Using KF/CaO-MgO Heterogeneous Catalysis Luqman Buchori; Didi Dwi Anggoro; Indro Sumantri; Riko Rikardo Putra
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.3.4251.689-696

The production of monoglyceride or monoacylglycerol (MAG) from triglycerides and glycerol has been studied. The purpose of this research was to study the effect of using KF/CaO-MgO catalyst on MAG production with batch reactor. The effect of reaction temperature, reaction time, and catalyst loading was investigated using Response Surface Methods (RSM). The reaction temperature, reaction time, and catalyst loading were varied at 200-220 ºC, 2-4 hours, and 0.1-0.3 % w/w, respectively. The maximum yield of monoglyceride 41.58% was achieved the optimum conditions of catalyst loading of 0.19 % (w/w), reaction temperature of 208.4 ºC, and reaction time of 3.20 hours.

Kinetic of Biogas Production in a Batch Anaerobic Digestion Process with Interference of Preservative Material of Sodium Benzoate Indro Sumantri; Hadiyanto Hadiyanto
Bulletin of Chemical Reaction Engineering & Catalysis 2020: BCREC Volume 15 Issue 3 Year 2020 (December 2020)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.15.3.9366.898-906

Sodium benzoate is a preservative compounds which are widely used for both food and beverage products. The treatment of waste water containing this compound was normally conducted in a anaerobic digestion (AD) using a batch reactor system at a room temperature. The anaerobic process eventually produced biogas which can be used for bioenergy. This research was aimed to evaluate the production of biogas from by synthetic solution models containing sodium benzoate (SB). The experiment was performed in a variation of Mixed Liquor Suspended Solid (MLSS) of 4.8 and 7.2 g/L, and initial sodium benzoate concentration of 400, 600, and 800 mg/L. The digestion was performed at 60 days, while the biogas content was measured every 2 days. The results indicated a reduction in the cumulative biogas by the addition of sodium benzoate, compared to the control condition. Moreover, the decrease in organic loading rate (OLR) of SB in wastewater follows the first order kinetic with kinetic rate constant (k) was 0.0432 to 0.1254 (day−1) for MLSS of 4.8 g/L and 0.0276 to 0.0372 (day−1) for 7.2 g/L MLSS. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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