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All Journal Jurnal Rekayasa Proses PROSIDING SEMINAR NASIONAL Rotasi METANA Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Bulletin of Chemical Reaction Engineering & Catalysis Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Proceeding Of The International Seminar and Conference 2015 LAPORAN PENELITIAN DAN PENGABDIAN MASYARAKAT Majalah Ilmiah MOMENTUM Jurnal Ilmu Farmasi dan Farmasi Klinik (Journal of Pharmaceutical Science and Clinical Pharmacy) INDONESIAN JOURNAL OF PHARMACY Indonesian Journal of Chemistry Prosiding Seminar Nasional Darmajaya Jurnal Rekayasa Proses Abdimas UNWAHAS : Jurnal Pengabdian Masyarakat UNWAHAS Jurnal Ilmiah Cendekia Eksakta Jurnal Inovasi Teknik Kimia Chemical Engineering Journal Storage (CEJS) Journal of Vocational Studies on Applied Research Techno Research In Chemical Engineering Asia Information System Journal Jurnal Alih Teknologi Sistem Informasi (JATSI) Bulletin of Chemical Reaction Engineering & Catalysis Palawa Jurnal Pengabdian Kepada Masyarakat
Indah Hartati
Universitas Wahid Hasyim Semarang
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : METANA

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MATHEMATICAL MODEL OF' GAULTHERASE INACTIVATION KINETICS FOR THE GAULTHERIN PRODUCTION FROM WINTERGREEN (Gaulteria fragantissima) Yulianto, Mohamad Endy Y; Hartati, Indah; yuniastuti, Ari
METANA Vol 5, No 2 (2007): Desember 2007
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6261.26 KB) | DOI: 10.14710/metana.v5i2.1905

Abstract

Abstract Wintergreen (Gaultheria fragantissima) is the source of the essential oil of wintergreen which is comprised predominantly of methyl salicylic. During this time wintergreen is not yet economically developed because of the lack of the cultivation technology. One of effort that is needed to be studied beside the cultivation tecnology and  the wintergren oil quality development is the product diversification. wintergreen comprised by far the highest concentration of both free salicylic and total salicylic acid which is expected of a plant known for the formation of the wintergreen oil, an essential oil consisting primarily of methyl salicylic. The concentration of total salicylate found in wintergreen is over 20 fold greater than the total salicylic concentration (salicylic and any derivates combined) found in Filipendula, and 100 fold greater than that found in Lemon Thyme. The active form of salicylic acid in wintergreen is Gaultherin. Gaultherin has many properties related to human health. Gaultherin consists of methyl salicylic conjugated to the disaccharide, primeverose. When plant tissues are disrupted the endogenous gaultherin is rapidly lost, presumably by enzymatic hydrolysis with the release of methyl salicylic. The problem is until this time there is not yet available an effective method for the gaultherin extraction. The difficulties faced on the gaultherin production are the fact that along the gaultherin extraction. and along with the disruption of the wintergreen tissue, the gaultherin is hydrolyzed into its individual components which are methyl salicylic and disaccharide. The alternative process for the gaultherin production from wintergreen is the gaultherin production process by enzyme inactivation and  extraction process in an inactivation extractor using a n organic solvent (alcoholic solvent extraction). This paper is intended to study the enzyme inactivation rate which is play an important role in the dimension determination of the process equipments. Enzyme inactivation can be describes as first orde reaction. The enzyme inactivation constant  kp is the temperature, pressure, and water concentration function. The dependency, model of  the temperature based on Arhenius type while the pressure dependency  is based on Eyring equation.   Keywords : gaultherin, inactivation. kinetics
Kinetika Pengeringan Busa Ampas Seduhan Teh Hartati, Indah; Kusumaningrum, Maharani
METANA Vol 15, No 1 (2019): Juni 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1134.582 KB) | DOI: 10.14710/metana.v15i1.22146

Abstract

Dominasi produksi minuman teh dalam kemasan berdampak pada meningkatnya produksi limbah ampas seduhan teh yang masih memiliki kandungan berbagai metabolit sekunder, mineral, serat dan protein. Metode pengeringan busa (foam mat drying) dapat diterapkan pada produksi serbuk ampas seduhan teh guna mendukung pengembangan dan pemanfaatan lebih lanjut dari ampas seduhan teh. Tujuan penelitian ini adalah mengkaji pengaruh penambahan konsentrasi busa putih telur pada proses pengeringan busa ampas seduhan teh serta mengkaji kinetika pengeringan lapis tipis menggunakan model kinetika Newton/Lewis, Page, Henderson-Pabis, Logartitmic dan Two Term. Parameter proses yang dievaluasi meliputi variasi penambahan busa putih telur (7,5-15%) sementara kadar maltodekstrin yang ditambahkan sebesar 30% dan pengeringan dilakukan pada suhu 800C. Penelitian menunjukkan jika penggunaan busa putih telur 7,5% memberikan kontanta kecepatan pengeringan yang lebih tinggi bila dibandingkan penggunaan busa putih telur 10-15%.  Dalam penelitian ini, model kinetika Page merupakan model yang memberikan kesesuaian yang lebih tinggi bila dibandingkan dengan model kinetika Newton/Lewis, Henderson and Pabis, Logartitmic dan Two Term. The emerging growth of tea based beverage impacts on the abundance of spent tea waste, a solid waste in which rich of secondary metabolites, minerals, fibre and protein.  Foam mat drying of spent tea leaves powder is applied for further utilization of spent tea waste. The objective of this research was to investigate the influence of egg white concentration added in the foam mat drying of spent tea waste and investigate the foam mat drying kinetics. The thin layer drying kinetics models applied were Newton/Lewis, Page, Henderson-Pabis, Logartitmic and Two Term model. The egg white concentration were varied of 7,5-15%, meanwhile the maltodextrin was of  30% and the the drying processes were performed at temperature of 800C. The research showed that the foam mat drying of spent tea waste performed at egg white concentration addition of 7,5% gave higher drying rate constant. In this research, Among the empirical models applied in this research, Page model was found to be the most adequate model representing the drying behavior of spent tea waste.
Co-Authors . Widayat Achmad Wildan Aditya Alfan Marzuki Aisyah Hana Rifiani Aji, Bayu Prasetyo Anggun Titi Nurcahyati Aniq, Nur Anita Dwi Puspitasari Aprilia Putri Sulistianingrum Aqnes Budiarti Ardi, Pradipta Risma Rukma Ari Yuniastuti Arie Setya Putra Arifah, Difa Al Ariyani, Sinta Aryanti, Desi Rahma Asari, Yunita Dwi Auviatita, Faeza Azzahra Aulia Hanifa Azzahra Aulia Hanifah Bella Paramaeshela Broto, R. T. D. Wisnu Chandra Pribadi Darmanto Darmanto Darmanto Darmanto Darmanto Darmanto Dea Ayu Ade Arisma Deddy Kurniawan Wikanta Deddy Prihadi Devi Endah P. Devina Ingrid A. Devita Hardianti Dewi Susanti Dewi Susanti Dian Risdianto Dita Desti D_Khilyati Diyono Ikhsan Dwi Handayani Dwi Kurnia Indar Dyah Puspa Arum Dyah Yuliana Zulfa Efa Firmania Eflita Yohana Endah Lestari Endah Subekti Ernawati Budi Astuti Fachry Abda El Rahman Fahmi Arifan Faizin, Safaah Nur Farikha Maharani Faris Hermawan, Faris Farizki, Bangkit Fatnawati Nur Hidayah Februana Hutavia Purba Caraka Fifi Kurniasari Fitriani, Dea Syifa fitriyani, Ulfa Fuji Utami Habib Abdun Nafik Hamid Aqil Hamid Aqil Hani Haswati Hardiyanti Amalia Harianingsih, Harianingsih Hary Sulistyo Hary Sulistyo Hary Sulistyo Hasan, Hasan Haswati, Hani Helmy Purwanto Hendriyanto Hendriyanto Hidayatun Natijah Imam Syafaat Indro Sumantri Irawan, Bei Harira Ismi Yatun Ismiyatul Kholisoh Ismiyatul Kholisoh Ismiyatul Kholisoh Julianto, Mohamad Endy Khasanah, Vina Nafidzatul Khornia Dwi Lestari Lailatul Firdaus Laeli Kurniasari Laeli Kurniasari Laeli Kurniasari Laeli Kurniasari Laeli Kurniasari Laeli Kurniasari Lailatul Fitriyah Latif, Abdullah Maharani Kusumaningrum Malikah, Anna Irdatul Maria Ulfah Marlina, Lala Adetia Mauluddin, M. Subchan Mauludin, Mochamad Subchan Mega Kasmiyatun Milzam, Muhammad Mira Nurhayani Mochamad Arif Budihardjo Moh Fahrurrozi Moh Fahrurrozi Mohamad Endy Y Yulianto Mohammad Endi Yulianto Mr. Darmanto Muhammad Dzulfikar Muhammad Mufti Azis Munifilia Ekasari Mustagfirin Mustagfirin Mustaghfirin Mustaghfirin Nafik, Habib Abdun Nazaruddin Sinaga Novika Aszyiamilatul Utami Nugroho Widiasmadi Nugroho, Agung Nur Aniq Prihastuti, Putri Putry, Cindyana Renan Subantoro Renan Subantoro Reviana Inda Dwi Suyatno Rita Ade Lasria Pardede Rita Dwi Ratnani Safaah Nurfaizin Salsa Erna Setiawati Sari, Ratmi Rahma Sarmi Sarmi Sekar Apriana Sinta Ariyani Siti Faizatul Mutiqoh Siti Soimah Siti Sudarmiseh Sofa Rohmania Sufrotun Khasanah Supriyadi Supriyadi Sury Widiyanti Suwardiyono Suwardiyono Suwardiyono Suwardiyono Suwarno Suwarno Tabah Priangkoso Tandang Patria Tama Tisa Lazuardy Titis Puspitasari Titis Puspitasari Udin Bahrudin, Udin vifta, rissa laila Vita Paramita Vita Paramita Vita Paramita Wahyudi Budi Sediawan Wahyudi Budi Sediawan Wahyudi Budi Sediawan Widarti Widarti Wulan Budi Astuti Yance Anas Yapan, Ulfa Fitriyani Zahroh El Baidho Zakiyyatut Darojah Zakka Athoo’ Illah Zulfa, Dyah Yuliana