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All Journal JOURNAL OF COASTAL DEVELOPMENT Reaktor International Journal of Science and Engineering (IJSE) International Journal of Renewable Energy Development TEKNIK JURNAL TEKNOLOGI KIMIA DAN INDUSTRI IPTEK The Journal for Technology and Science Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Agrointek Bulletin of Chemical Reaction Engineering & Catalysis Seminar Nasional Teknik Kimia Kejuangan Majalah Ilmiah MOMENTUM Jurnal Aplikasi Teknologi Pangan Communications in Science and Technology Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia JURNAL PANGAN Jurnal Inovasi Teknik Kimia Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Profesi Insinyur Indonesia Journal of Bioresources and Environmental Sciences Bulletin of Chemical Reaction Engineering & Catalysis
M. Djaeni
Department Of Chemical Engineering ; Faculty Of Engineering; Diponegoro University Jl Prof H. Soedharto, SH, Tembalang Semarang, Indonesia Phone: +62247460058; Facs: +62247460055
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Transportation Other

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Journal : Bulletin of Chemical Reaction Engineering

 1 
Thermal Degradation Kinetics of Capsaicin on Blanching-Brine-Calcium Pretreatment Red Chili Pepper Drying Uma Fadzilia Arifin; Mohamad Djaeni
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 2 Year 2018 (August 2018)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.13.2.1660.365-372

Abstract

Post-harvest red chili pepper (Capsicum frutescens) has highly capsaicin as bioactive compound and moisture content. However, capsaicin is the responsible bioactive compound in chili for hot sensation that easy to degrade by partial oxidation caused introduction of heat in drying process. The objective of this research was to investigate kinetics of capsaicin degradation in the drying process under blanching-brine-calcium pretreatment and various temperatures. For this purposes, chili provided local farmer was pretreated using blanching-brine-calcium pretreatment. Afterward, they were dried at 40, 50, 60, and 70 oC for 8 hours. Degradation of capsaicin content was observed every 2 hours using Thin Layer Chromatography (TLC). Results showed kinetics of capsaicin degradation was categorized as second order reaction. At the same temperature and time, capsaicin retention of blanching-brine-calcium pretreated chili has highest value. The temperature dependence of the capsaicin degradation rate was analyzed using Arrhenius correlation. The activation energy for degradation rate of capsaicin during drying was around 45.10367 kJ/mol.K. It indicated the degradation rate increased as well as increased the temperature at the same time. 
Kinetic of Anthocyanin Degradation in Roselle Extract Dried with Foaming Agent at Different Temperatures Setia Budi Sasongko; Mohamad Djaeni; Febiani Dwi Utari
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (664.985 KB) | DOI: 10.9767/bcrec.14.2.2875.320-325

Abstract

This research studied the effect of drying temperature on the kinetic of degradation anthocyanin in roselle extract drying with foam under dehumidified air at temperatures ranging 40-60 oC.  During the drying process, the anthocyanin content in the roselle extract was observed every 20 minutes for 120 minutes. The data was used for estimating the kinetic parameters of anthocyanin degradation namely constant of anthocyanins degradation rate and reaction order. The kinetic parameters were estimated and fitted with experimental data at various drying condition. Result showed that the anthocyanins degradation closed to the second order reaction. Meanwhile, the constant of anthocyanins degradation rate at various drying temperatures followed Arhenius correlation. With the result, retention of anthocyanin during the drying can be well estimated for various drying time and temperature. 
Co-Authors . Widayat A. Agusniar A. Mahayana A. Nurhasanah A. Prasetyaningrum1 A. Sutanto Affian Widjanarko Affian Widjanarko Aga Aulia Rahman Ahdayani Rosarrah Ahmad M. Fuadi Ainiyyah Fatin Ajeng Yulianti Dwi Lestari Aji Prasetyaningrum Andri Cahyo Kumoro Annisa, Arianti Nuur Aprilina Purbasari Azafilmi Hakiim Berkah Fajar Tamtomo kiono Bery Kristanti Cindi Yasintasia Cynthia Anggi Maulina D. Setyani Dessy Agustina Sari Dewi Ayuningtyas Djoko Mulyono Febiani Dwi Utari Febiani Dwi Utari Febiani Utari Galih Satrio Lelono H Hadiyanto Hadiono Soegeng Rahardjo Hargono . Hargono Hargono Hargono Hargono Hargono Hargono Hartono, Damin Harum Nissaulfasha Ismi Ari Fitria Jefri Chandra Runanda Jumali Jumali Kristin Valentina Sinabutar Laeli Kurniasari Lisna Krisan Wibowo Listyadevi, Yuniar Luthfia Luqman Buchori M. Ikhwan Shofarudin Maharani Ratridewi Maulana, Kemal Meilya Suzan Triyastuti, Meilya Suzan N. Asiah Nita Ariani Novita, Dewi Ayu Nurul Aishah Aishah Nurul Asiah Nurul Asiah Prakoso, Satrio Budi R Ridwan R. Ridwan Rahmat Hidayat Raka Dimas Saputra Ratnawati Ratnawati Rohmat Figiarto S Suherman Sari, Anisa Rachma Setia Budi Sasongko Sheila Luvi Galvani Siqhny, Zulhaq Dahri Suci Dhiya Mayra Suherman Sumirat Sumirat Tri Nugroho Uma Fadzilia Arifin Uma Fadzilia Arifin, Uma Fadzilia Utari, Febiani Utari, Febiani Dwi Vera Pangni Fahriani Verona Amelia Vita Efelina Wiratno Wiratno