Tamaria Panggabean, Tineke Mandang, L. O. Nelwan, Wawan Hermawan
{"title":"Pengaruh Laju Umpan Bahan Bakar dan Laju Aliran Udara terhadap Kinerja Pembakaran Tungku Fixed Bed","authors":"Tamaria Panggabean, Tineke Mandang, L. O. Nelwan, Wawan Hermawan","doi":"10.22146/agritech.70508","DOIUrl":"https://doi.org/10.22146/agritech.70508","url":null,"abstract":"","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75629355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maria Magdalena Sinaga, D. W. Marseno, Manikharda Manikharda
The utilization of rubber wood waste in the form of liquid smoke has the potential to overcome environmental problems caused by the industry. Therefore, this study aimed to determine the potential of liquid smoke from rubberwood clone PB 340 to be used as a coagulant and preservative. Rubber wood waste was processed into liquid smoke using the pyrolysis method with a temperature of 400°C. Determination of the composition of liquid smoke was carried out using gas chromatography-mass spectrometry (GC-MS) analysis. The results showed that the rubber wood clone PB 340 contained 57.78% cellulose, 12.16% hemicellulose, and 19.01% lignin. Furthermore, volatile analysis with GC-MS showed that liquid smoke from rubber wood clone PB 340 contained 58 organic compounds. Some compounds in liquid smoke were phenols, furans, furfurals, acetic acid, and cyclopentene. The product was then tested for its performance as a latex coagulant at several concentrations of 5%, 10%, 15%, 20%, and 25% v/v, as well as storage time of 1, 7, and 14 days. The treated latex samples that had turned into coagulums were examined for their sheet quality parameters, including initial plasticity (P0), plasticity retention index (PRI), total volatile compounds, impurity, and ash content. The outcomes from all comparisons of pure liquid smoke concentrations and storage time of up to 14 days of the coagulum samples showed that in the initial plasticity value (P0), the plasticity retention index (PRI), volatile matter, ash content, and dirt content had met the applied Standard Indonesian Rubber (SIR).
{"title":"Application of Liquid Smoke from Rubber Wood Clone PB-340 as Latex Coagulant and Preservation of Natural Rubber Coagulum","authors":"Maria Magdalena Sinaga, D. W. Marseno, Manikharda Manikharda","doi":"10.22146/agritech.70487","DOIUrl":"https://doi.org/10.22146/agritech.70487","url":null,"abstract":"The utilization of rubber wood waste in the form of liquid smoke has the potential to overcome environmental problems caused by the industry. Therefore, this study aimed to determine the potential of liquid smoke from rubberwood clone PB 340 to be used as a coagulant and preservative. Rubber wood waste was processed into liquid smoke using the pyrolysis method with a temperature of 400°C. Determination of the composition of liquid smoke was carried out using gas chromatography-mass spectrometry (GC-MS) analysis. The results showed that the rubber wood clone PB 340 contained 57.78% cellulose, 12.16% hemicellulose, and 19.01% lignin. Furthermore, volatile analysis with GC-MS showed that liquid smoke from rubber wood clone PB 340 contained 58 organic compounds. Some compounds in liquid smoke were phenols, furans, furfurals, acetic acid, and cyclopentene. The product was then tested for its performance as a latex coagulant at several concentrations of 5%, 10%, 15%, 20%, and 25% v/v, as well as storage time of 1, 7, and 14 days. The treated latex samples that had turned into coagulums were examined for their sheet quality parameters, including initial plasticity (P0), plasticity retention index (PRI), total volatile compounds, impurity, and ash content. The outcomes from all comparisons of pure liquid smoke concentrations and storage time of up to 14 days of the coagulum samples showed that in the initial plasticity value (P0), the plasticity retention index (PRI), volatile matter, ash content, and dirt content had met the applied Standard Indonesian Rubber (SIR).","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"55 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90786980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Widya Mudyantini, S. Suranto, Solichatun Solichatun, N. Etikawati, A. Pitoyo, S. Suratman, T. Ardo
{"title":"Shelf Life and Secondary Metabolite Content of Sweet Potato (Ipomoea batatas L.) Lam. Coated with Chitosan Coating at Low Temperature Storage","authors":"Widya Mudyantini, S. Suranto, Solichatun Solichatun, N. Etikawati, A. Pitoyo, S. Suratman, T. Ardo","doi":"10.22146/agritech.61099","DOIUrl":"https://doi.org/10.22146/agritech.61099","url":null,"abstract":"","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"63 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77669597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Endrawati, D. Solihin, Ani Suryani Suryani, N. Darmawan, I. Suparto, Bella Fitri Rahmantika
{"title":"Optimization of Silkworm Sericin Extraction Attacus atlas and Samia cynthia ricini Using Response Surface Methodology","authors":"Y. Endrawati, D. Solihin, Ani Suryani Suryani, N. Darmawan, I. Suparto, Bella Fitri Rahmantika","doi":"10.22146/agritech.71950","DOIUrl":"https://doi.org/10.22146/agritech.71950","url":null,"abstract":"","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"11 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90014314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Status Keberlanjutan Usaha Tani Palawija-Kencur Sistem Tumpang Sari: Kasus di Lahan Kering Madura","authors":"","doi":"10.22146/agritech.71974","DOIUrl":"https://doi.org/10.22146/agritech.71974","url":null,"abstract":"","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"131 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76564273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enjoying a good cup of coffee is gaining popularity among Indonesian millennials, particularly in metropolitan areas, with an annual growth rate of 6% in the last decade. Therefore, this study aimed to provide information for adjusting coffee shop marketing strategies by estimating the influence of consumer attitudes, in particular, motivation and perception, and lifestyle, on their purchasing decisions. We sampled 153 individuals (majorly aged 25 to 27 years, with a slight bias toward females) in Yogyakarta, Java, using an online survey with 33 questions on consumer attitudes, along with four demographic questions. The responses were converted to a Likert score and analyzed using multiple linear regression. Our results demonstrate that the consumer attitudes investigated collectively explained ~41%, with motivation and perception being the dominant factor (F = 51,401 ; p < 0.05). It showed that motivation and perception, and lifestyle variables significantly affected coffee shop purchasing decisions among millennials in Yogyakarta. At the same time, the F test revealed that they had a combined effect significantly. Therefore, coffee shop owners must consider consumers' motivation and perception, and lifestyle to increase millennial coffee shop consumers' loyalty in Yogyakarta.
{"title":"Millennials' Consumer Behavior in the Coffee Agroindustry: The Effect of Consumer Attitudes on Purchasing Decisions","authors":"","doi":"10.22146/agritech.66577","DOIUrl":"https://doi.org/10.22146/agritech.66577","url":null,"abstract":"Enjoying a good cup of coffee is gaining popularity among Indonesian millennials, particularly in metropolitan areas, with an annual growth rate of 6% in the last decade. Therefore, this study aimed to provide information for adjusting coffee shop marketing strategies by estimating the influence of consumer attitudes, in particular, motivation and perception, and lifestyle, on their purchasing decisions. We sampled 153 individuals (majorly aged 25 to 27 years, with a slight bias toward females) in Yogyakarta, Java, using an online survey with 33 questions on consumer attitudes, along with four demographic questions. The responses were converted to a Likert score and analyzed using multiple linear regression. Our results demonstrate that the consumer attitudes investigated collectively explained ~41%, with motivation and perception being the dominant factor (F = 51,401 ; p < 0.05). It showed that motivation and perception, and lifestyle variables significantly affected coffee shop purchasing decisions among millennials in Yogyakarta. At the same time, the F test revealed that they had a combined effect significantly. Therefore, coffee shop owners must consider consumers' motivation and perception, and lifestyle to increase millennial coffee shop consumers' loyalty in Yogyakarta.","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"24 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90837137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industri Pengalengan Guded di PT. RD, Yogyakarta memproduksi Produk Gudeg Kaleng untuk dipasarkan baik didalam negeri dan keluar negeri. Pada unit Pengolahan air limbah (IPAL) PT RD setelah dilakukan pengujian nilai pH, BOD5, COD, TSS, dan suhu efluen IPAL menunjukkan ketidak sesuaian nilai berdasarkan Peraturan Daerah Istimewa Yogyakarta Nomor 7 Tahun 2016. Penelitian ini bertujuan untuk melakukan analisis kinerja pada unit IPAL PT RD terhadap parameter pH, BOD, dan COD dan usulan perbaikan terhadap Kinerja IPALnya agar dapat beroperasi menghasilkan efluen yang sesuai dengan baku mutu yang dipersyaratkan pemerintah. Metoda penelitian dalam analisa kinerja IPAL dilakukan menggunakan Analisis Dimensi berdasarkan data-data perhitungan secara kuantitatif dan deskriptif. Dari analisa kinerja IPAL didapatkan factor penyebab ketidaksesuainya kinerja IPAL disebabkan 1) ukuran saringan yang kurang sesuai yaitu 39 cm×100 cm, 2) kondisi scum yang kotor tidak dibersihkan. 3) bak pengolahan anaerob yang digunakan hanya dapat mengolah beban COD 6,32 kg COD/m3.hari dan beban BOD5 1,51 kg BOD5/m3.hari sedangkan beban COD yang harus diolah melebihi kapasitas yang besarnya 6,74 kg COD/m3.hari dan beban BOD 1,71 kg BOD5/m3.hari, 4) penggunaan bakteri yang tidak sesuai dengan jenis pengolahan dan 5) tidak adanya proses netralisasi. Usulan perbaikan berdasarkan analisa kinerja IPAL yang diteliti; 1) penggantian saringan dengan ukuran yang sesuai yaitu 39 cm×110 cm; 2) pembersihan scum dan penambahan koagulan; 3) penggunaan teknologi biofilter anaerob dengan waktu tinggal 32,71 jam, organic loading rate 7,85 kg COD/m3.hari, hydraulic loading rate 0,0036 m3/m2.jam, pemasangan bioball dari material PVC, berbentuk bola, diameter 3 cm, luas kontak spesifik 200-240 m2/m3, porositas rongga 0,92, berwarna hitam dan volume 0,94 m3, pemasangan pipa dengan panjang 50-60 cm; 4) penggunaan Bakteri Nutrabact Anaerob dengan dosis pemakaian pertama 90-230 ml dan pemakaian harian 47 ml yang dibagi rata ke tujuh kolom biofilter; 5) netralisasi dengan membuka kedua bak kontrol dan penambahan kapur, serta pengontrolan efluen.
{"title":"Analisis terhadap Kinerja Instalasi Pengolahan Air Limbah (IPAL) pada Industri Gudeg Kaleng di PT XYZ, Yogyakarta","authors":"Ima Apriliyani, M. Ainuri, Atris Suyantohadi","doi":"10.22146/agritech.71076","DOIUrl":"https://doi.org/10.22146/agritech.71076","url":null,"abstract":"Industri Pengalengan Guded di PT. RD, Yogyakarta memproduksi Produk Gudeg Kaleng untuk dipasarkan baik didalam negeri dan keluar negeri. Pada unit Pengolahan air limbah (IPAL) PT RD setelah dilakukan pengujian nilai pH, BOD5, COD, TSS, dan suhu efluen IPAL menunjukkan ketidak sesuaian nilai berdasarkan Peraturan Daerah Istimewa Yogyakarta Nomor 7 Tahun 2016. Penelitian ini bertujuan untuk melakukan analisis kinerja pada unit IPAL PT RD terhadap parameter pH, BOD, dan COD dan usulan perbaikan terhadap Kinerja IPALnya agar dapat beroperasi menghasilkan efluen yang sesuai dengan baku mutu yang dipersyaratkan pemerintah. Metoda penelitian dalam analisa kinerja IPAL dilakukan menggunakan Analisis Dimensi berdasarkan data-data perhitungan secara kuantitatif dan deskriptif. Dari analisa kinerja IPAL didapatkan factor penyebab ketidaksesuainya kinerja IPAL disebabkan 1) ukuran saringan yang kurang sesuai yaitu 39 cm×100 cm, 2) kondisi scum yang kotor tidak dibersihkan. 3) bak pengolahan anaerob yang digunakan hanya dapat mengolah beban COD 6,32 kg COD/m3.hari dan beban BOD5 1,51 kg BOD5/m3.hari sedangkan beban COD yang harus diolah melebihi kapasitas yang besarnya 6,74 kg COD/m3.hari dan beban BOD 1,71 kg BOD5/m3.hari, 4) penggunaan bakteri yang tidak sesuai dengan jenis pengolahan dan 5) tidak adanya proses netralisasi. Usulan perbaikan berdasarkan analisa kinerja IPAL yang diteliti; 1) penggantian saringan dengan ukuran yang sesuai yaitu 39 cm×110 cm; 2) pembersihan scum dan penambahan koagulan; 3) penggunaan teknologi biofilter anaerob dengan waktu tinggal 32,71 jam, organic loading rate 7,85 kg COD/m3.hari, hydraulic loading rate 0,0036 m3/m2.jam, pemasangan bioball dari material PVC, berbentuk bola, diameter 3 cm, luas kontak spesifik 200-240 m2/m3, porositas rongga 0,92, berwarna hitam dan volume 0,94 m3, pemasangan pipa dengan panjang 50-60 cm; 4) penggunaan Bakteri Nutrabact Anaerob dengan dosis pemakaian pertama 90-230 ml dan pemakaian harian 47 ml yang dibagi rata ke tujuh kolom biofilter; 5) netralisasi dengan membuka kedua bak kontrol dan penambahan kapur, serta pengontrolan efluen. ","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"55 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81144693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hadi Yusuf Faturochman, L. Muharram, Perlitya Shafarita Sativa, Bina Indah Widyananda, Ema Komalasari
Bawang hitam merupakan hasil olahan bawang putih (Allium sativum) yang dihasilkan melalui proses ferementasi pada suhu tinggi selama satu bulan. Pengaruh proses fermentasi menyebabkan bawang hitam memiliki aroma yang tidak terlalu menyengat, rasa manis dan asam, serta memiliki kandungan antioksidan yang lebih tinggi dari pada bawang putih. Perubahan karakteristik yang terdapat pada bawang hitam tersebut memungkinkan pemanfaatannya menjadi lebih luas salah satunya dapat diolah menjadi minuman fungsional. Penelitian ini dilakukan dengan rancangan D-Optimal Custom Design menggunakan metode Response Surface Methodology (RSM). Tujuan penelitian adalah menetapkan formulasi optimum produk minuman fungsional bawang hitamyang memiliki aktivitas antioksidan yang tinggi serta memiliki sifat organoleptik yang baik. Penelitian ini menggunakan variabel bebas berupa konsentrasi ekstrak bawang hitam (73-88 %), konsentrasi madu (10-25%), dan konsentrasi sari lemon (2-8%). Melalui proses optimasi diperoleh hasil yaitu diperoleh formula minuman funggsional bawang hitam terbaik dengan formulasi konsentrasi bawang hitam 76.80 %, konsentrasi madu 18.23 %, dan konsentrasi sari lemon 4.49 % yang menghasilkan aktivitas antioksidan sebesar IC50 4.73 % , penerimaan organoleptik warna 5.73, rasa 6.00, aroma 5.25 dan keseluruhan 5.82.
{"title":"Formulasi Minuman Fungsional Ekstrak Bawang Hitam dengan Penambahan Lemon dan Madu Menggunakan Response Surface Methodology","authors":"Hadi Yusuf Faturochman, L. Muharram, Perlitya Shafarita Sativa, Bina Indah Widyananda, Ema Komalasari","doi":"10.22146/agritech.70928","DOIUrl":"https://doi.org/10.22146/agritech.70928","url":null,"abstract":"Bawang hitam merupakan hasil olahan bawang putih (Allium sativum) yang dihasilkan melalui proses ferementasi pada suhu tinggi selama satu bulan. Pengaruh proses fermentasi menyebabkan bawang hitam memiliki aroma yang tidak terlalu menyengat, rasa manis dan asam, serta memiliki kandungan antioksidan yang lebih tinggi dari pada bawang putih. Perubahan karakteristik yang terdapat pada bawang hitam tersebut memungkinkan pemanfaatannya menjadi lebih luas salah satunya dapat diolah menjadi minuman fungsional. Penelitian ini dilakukan dengan rancangan D-Optimal Custom Design menggunakan metode Response Surface Methodology (RSM). Tujuan penelitian adalah menetapkan formulasi optimum produk minuman fungsional bawang hitamyang memiliki aktivitas antioksidan yang tinggi serta memiliki sifat organoleptik yang baik. Penelitian ini menggunakan variabel bebas berupa konsentrasi ekstrak bawang hitam (73-88 %), konsentrasi madu (10-25%), dan konsentrasi sari lemon (2-8%). Melalui proses optimasi diperoleh hasil yaitu diperoleh formula minuman funggsional bawang hitam terbaik dengan formulasi konsentrasi bawang hitam 76.80 %, konsentrasi madu 18.23 %, dan konsentrasi sari lemon 4.49 % yang menghasilkan aktivitas antioksidan sebesar IC50 4.73 % , penerimaan organoleptik warna 5.73, rasa 6.00, aroma 5.25 dan keseluruhan 5.82.","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"20 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72972274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pemanfaatan Ampas Kopi sebagai Bahan Karbon Aktif untuk Pengolahan Air Limbah Industri Batik","authors":"Cindy Febrianti, Maria Ulfah, K. Kusumastuti","doi":"10.22146/agritech.68014","DOIUrl":"https://doi.org/10.22146/agritech.68014","url":null,"abstract":"","PeriodicalId":7563,"journal":{"name":"agriTECH","volume":"159 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85379240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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