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All Journal Jurnal Gizi dan Pangan Jurnal Teknologi Dan Industri Pangan Media Gizi dan Keluarga Medical Journal of Indonesia Perspektif : Review Penelitian Tanaman Industri Jurnal Agro INDONESIAN JOURNAL OF PHARMACY Acta Pharmaceutica Indonesia Jurnal Ilmu Pangan dan Hasil Pertanian AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Sains Teh dan Kina Jurnal Aplikasi Teknologi Pangan EDUFORTECH Jurnal Kimia Terapan Indonesia Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Aplikasi Teknologi Pangan Jurnal Teknologi Pertanian Andalas AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Pasundan Food Technology Journal (PFTJ) Perspektif, Review Penelitian Tanaman Industri Jurnal Sabdariffarma: Jurnal Ilmiah Farmasi Indonesian Journal of Applied Research (IJAR) Jurnal Buana Farma eProceedings of Engineering Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat Babakti Jurnal Kefarmasian Indonesia Jurnal Sains dan Teknologi Pangan
Dadan Rohdiana
Program Studi Teknologi Pangan Universitas Al-Ghifari Bandung
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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UJI EFEK DIURETIK SEDUHAN TEH PUTIH (Camellia seninsis L.) pada MENCIT PUTIH JANTAN GALUR SWISS WEBSTER Dytha Andri Deswati; Dadan Rohdiana; Sari Agustin
Jurnal Sabdariffarma Vol 9, No 1 (2021): SABDARIFFARMA
Publisher : Prodi Farmasi - Universitas Al Ghifari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53675/jsfar.v2i1.28

Abstract

Diuretik adalah adanya penambahan volume urin yang diproduksi dan  menunjukan jumlah pengeluaran (kehilangan) zat-zat terlarut dan air. Teh putih merupakan tanaman yang sering digunakan sebagai penyegar salah satu manfaat teh putih adalah diuretik . Penelitian ini bertujuan untuk mengetahui efek diuretik dari seduhan teh putih Sebanyak 25 ekor mencit jantan putih galur Swiss Webster yang dibagi menjadi 5 kelompok uji dengan dosis yang diberikan  aquadest 0,5 ml, furosemid 0,26 mg/g BB mencit, dosis I dosis 2,6 mg/g BB mencit, dosis II dosis 5,2 mg/gBB mencit, dosis III 10,4mg/g BB mencit. Pemberian sediaan pada mencit dari setiap kelompok secara peroral dan menggunakan metode Lipschitz. Pengujian dilakukan dengan mengukur volume urin yang keluar selama 6 jam dan pengukuran kadar Na+ dan K+ dalam urin. Data yang diperoleh dianalisis dengan one way ANOVA. Hasil penelitian menunjukan pemberian  seduhan Teh putih (Camellia sinensis.L) dapat menghasilkan volume urin yang paling besar yaitu pada dosis III 10,4 mg/20g BB dan mendekati volume urin kelompok pembanding (furosemid) secara statistik. Secara statistik berbeda bermakna dibandingkan dengan volume kelompok kontrol  normal dengan taraf α=0,05. ). Kadar Na+ dan K+ yang paling baik terkandung dalam urin pada dosis III (10,4  mg/20g BB). Efek diuretik yang ditimbulkan seduhan teh  putih mendekati efek diuretik pembanding yaitu furosemid
Ekstraksi Teh Putih Berbantu Ultrasonik pada Berbagai Amplitudo Asri Widyasanti; Tri Halimah; Dadan Rohdiana
Jurnal Aplikasi Teknologi Pangan Vol 7, No 3 (2018): Agustus 2018
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.332 KB) | DOI: 10.17728/jatp.2295

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh amplitudo yang berbeda terhadap sifat fisikokimia ekstrak teh putih dengan menggunakan Ultrasound Assisted Extraction (UAE). Ekstraksi dilakukan menggunakan pelarut etanol 96% serta ukuran bubuk teh putih 18 mesh. Sonikasi digunakan pada amplitudo 25, 50, 75 dan 100%. Metode yang digunakan adalah percobaan laboratorium dengan analisis deskriptif. Parameter uji yang dilakukan meliputi rendemen total, kadar sisa pelarut, bobot jenis, warna, dan kadar polifenol. Hasil penelitian menunjukkan perbedaan penggunaan amplitudo pada proses ekstraksi mempengaruhi nilai rendemen ekstraksi dan mutu ekstrak dengan penggunaan amplitudo 100% sebagai perlakuan terbaik dengan nilai rendemen total sebesar 67,35%; nilai bobot jenis filtrat 0,8241; bobot jenis ekstrak sebesar 1,0306; dan kadar polifenol sebesar 0,90 mg asam galat ekivalen/g bobot kering. Hasil menunjukkan nilai yang lebih baik dibandingkan dengan maserasi dengan rendemen ekstraksi hasil maserasi 60,12 %; nilai bobot jenis filtrat 0,8163; bobot jenis ekstrak sebesar 1,0053; dan kadar polifenol sebesar 0,64 mg asam galat ekivalen/g bobot kering. Karakteristik warna ekstrak etanol teh putih seluruh perlakuan amplitudo dan maserasi menghasilkan kromatisitas warna merah. Kesimpulan dari penelitian ini adalah adanya pengaruh teknik sonikasi pada sifat fisikokimia ekstrak teh putih dan ekstraksi menggunakan amplitudo 100% menghasilkan nilai rendemen dan kadar polifenol terbaik. Extraction of White Tea by Ultrasound Assisted Extraction at Various AmplitudeAbstractThe purpose of this study was to determine the effect of different amplitudes on physicochemical properties of white tea extract using Ultrasound Assisted Extraction (UAE). Ethanol was used as solvent and material size was 18 mesh. This research used amplitude: 25, 50, 75, and 100%. The method used laboratory experiment using descriptive analysis. The parameters were total extraction total yield, residual solvent content, specific gravity, colour, and total polyphenol. The result showed that the amplitude in extraction process influenced the yield and the quality of the extract. As much as 100% amplitude was the best treatment resulted in total yield of 67.35%; the specific gravity of filtrate was 0.8241; the specific gravity of extract was 1.0306; and the polyphenol content was 0.90 mgGAE /g dryweight. The result of UAE showed a better result than hot maceration with total yield of 60.12%; specific gravity of filtrate was 0.8163; specific gravity of extract was 1.0053; and polyphenol content was 0.64 mgGAE /g dry weight. Colour characteristics of white tea ethanol extracts from all operating amplitude and hot maceration were resulting in red colour. As conclusion, ultrasound technique provided the physicochemical properties changes of extract and 100% amplitude was resulting best value of yield and polyphenol content.••••••
PENGARUH PERBEDAAN LAMA EKSTRAKSI TEH PUTIH DENGAN MENGGUNAKAN METODE MICROWAVE ASSISTED EXTRACTION (MAE) Asri Widyasanti; Heri Aryadi; Dadan Rohdiana
Jurnal Teknologi Pertanian Andalas Vol 22, No 2 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (687.845 KB) | DOI: 10.25077/jtpa.22.2.165-174.2018

Abstract

Teh putih merupakan teh yang diolah dari pucuk (peko) Camellia sinensis melalui proses pelayuan dan pengeringan. Proses pengolahan yang minim tersebut diduga menyebabkan kandungan polifenolnya lebih tinggi dibandingkan dengan jenis teh lainnya. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh lama ekstraksi yang berbeda terhadap sifat fisikokimia ekstrak teh putih dengan menggunakan Microwave Assisted Extraction (MAE). Lama ekstraksi yang digunaka yaitu 2, 4, 6, dan 8 menit dengan level daya 70% (490 W). Metode yang digunakan adalah percobaan laboratorioum dengan analisis deskriptif. Parameter yang diuji dilakukan meliputi rendemen total, kadar sisa pelarut, bobot jenis, warna, dan kadar polifenol. Hasil penelitian menunjukan perbedaan lama ekstraksi pada proses ekstraksi mempengaruhi nilai rendemen ekstraksi dan mutu ekstrak dengan penggunaan lama ekstraksi 8 menit sebagai perlakuan terbaik dengan nilai rendemen total sebesar 29,14%; nilai rendemen filtrasi 65,79%; rendemen evaporasi sebesar 7,60%; bobot jenis ektrak sebesar 1,1028 dan kadar polifenol sebesar 63,60%. hasil menunjukan nilai yang lebih baik dibandingkan dengan maserasi dengan rendemen total hasil maserasi 24,11%; nilai rendemen filtrasi 41,57%; rendemen evaporasi sebesar 4,45%; bobot jenis ekstrak sebesar 1,1008 dan kadar polifenol sebesar 48,35%. Dapat dilihat dari hasil penelitian ini menunjukan terdapat pengaruh gelombang mikro pada sifat fisikokimia ekstrak teh putih yang menunjukan pengaruh terbesarnya terdapat pada penggunaan level daya 70% dan lama ekstraksi 8 menit.
Ekstraksi Teh Putih Berbantu Ultrasonik pada Berbagai Amplitudo Asri Widyasanti; Tri Halimah; Dadan Rohdiana
Jurnal Aplikasi Teknologi Pangan Vol 7, No 3 (2018): Agustus 2018
Publisher : Indonesian Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jatp.2295

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh amplitudo yang berbeda terhadap sifat fisikokimia ekstrak teh putih dengan menggunakan Ultrasound Assisted Extraction (UAE). Ekstraksi dilakukan menggunakan pelarut etanol 96% serta ukuran bubuk teh putih 18 mesh. Sonikasi digunakan pada amplitudo 25, 50, 75 dan 100%. Metode yang digunakan adalah percobaan laboratorium dengan analisis deskriptif. Parameter uji yang dilakukan meliputi rendemen total, kadar sisa pelarut, bobot jenis, warna, dan kadar polifenol. Hasil penelitian menunjukkan perbedaan penggunaan amplitudo pada proses ekstraksi mempengaruhi nilai rendemen ekstraksi dan mutu ekstrak dengan penggunaan amplitudo 100% sebagai perlakuan terbaik dengan nilai rendemen total sebesar 67,35%; nilai bobot jenis filtrat 0,8241; bobot jenis ekstrak sebesar 1,0306; dan kadar polifenol sebesar 0,90 mg asam galat ekivalen/g bobot kering. Hasil menunjukkan nilai yang lebih baik dibandingkan dengan maserasi dengan rendemen ekstraksi hasil maserasi 60,12 %; nilai bobot jenis filtrat 0,8163; bobot jenis ekstrak sebesar 1,0053; dan kadar polifenol sebesar 0,64 mg asam galat ekivalen/g bobot kering. Karakteristik warna ekstrak etanol teh putih seluruh perlakuan amplitudo dan maserasi menghasilkan kromatisitas warna merah. Kesimpulan dari penelitian ini adalah adanya pengaruh teknik sonikasi pada sifat fisikokimia ekstrak teh putih dan ekstraksi menggunakan amplitudo 100% menghasilkan nilai rendemen dan kadar polifenol terbaik. Extraction of White Tea by Ultrasound Assisted Extraction at Various AmplitudeAbstractThe purpose of this study was to determine the effect of different amplitudes on physicochemical properties of white tea extract using Ultrasound Assisted Extraction (UAE). Ethanol was used as solvent and material size was 18 mesh. This research used amplitude: 25, 50, 75, and 100%. The method used laboratory experiment using descriptive analysis. The parameters were total extraction total yield, residual solvent content, specific gravity, colour, and total polyphenol. The result showed that the amplitude in extraction process influenced the yield and the quality of the extract. As much as 100% amplitude was the best treatment resulted in total yield of 67.35%; the specific gravity of filtrate was 0.8241; the specific gravity of extract was 1.0306; and the polyphenol content was 0.90 mgGAE /g dryweight. The result of UAE showed a better result than hot maceration with total yield of 60.12%; specific gravity of filtrate was 0.8163; specific gravity of extract was 1.0053; and polyphenol content was 0.64 mgGAE /g dry weight. Colour characteristics of white tea ethanol extracts from all operating amplitude and hot maceration were resulting in red colour. As conclusion, ultrasound technique provided the physicochemical properties changes of extract and 100% amplitude was resulting best value of yield and polyphenol content.••••••
EVALUASI KANDUNGAN THEAFLAVIN DAN THEARUBIGIN PADA TEH KERING PADA KEMASAN Dadan Rohdiana
Jurnal Kimia Terapan Indonesia Vol 9, No 1-2 (1999)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2302.656 KB) | DOI: 10.14203/jkti.v9i1-2.192

Abstract

Theaflavin and thearubigin are important compounds produce by enzymatic oxidation of polyphenol compounds in tea liquor. These compounds influent liquor quality in tea quality, es ecially color annd teste. Among the all Criteria of ea liquor quality value, color and taste.The enzymatic oxidation of polyphenol compounds will continue change theaflavin to thearubigin, so thearubigin content in tea is higher than thaflavin. This research is aimed to evaluated theaflavin and thearubigin content in Indonesian packed tea.Generally tea process manufacturing classified into four groups, i.e: black tea, green tea, jasmine tea and other aroma of tea.Analitical result showed that black tea have higher theaflavin and thearubigin content than green tea and jasmine tea. this case is understandale, because theaflavin and thearubigin is care product polyphenol compounds oxidation, where black tea experienced full of oxidation.
AKTIVITAS ANTIHIPERGLIKEMIK EKSTRAK ETANOL DAUN CINCAU HITAM PADA MENCIT PUTIH JANTAN YANG DIINDUKSI ALOKSAN Dadan Rohdiana
Pasundan Food Technology Journal (PFTJ) Vol 9 No 2 (2022): PASUNDAN FOOD TECHNOLOGY JOURNAL (PFTJ)
Publisher : Department of Food Technology, Universitas Pasundan, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/pftj.v9i2.5790

Abstract

Telah dilakukan penelitian aktivitas antihiperglikemik EEDCH atau ekstrak etanol daun cincau hitam (Mesona palustris B.L) pada mencit putih jantan yang diinduksi aloksan. Penelitian ini dibagi menjadi empat tahap yaitu ekstraksi daun cincau hitam menggunakan pelarut etanol 96%, skrining fitokimia, analisis total flavonoid dan pengujian aktivitas antihiperglikemik. Mencit putih jantan dibuat diabetes dengan diinduksi aloksan. Mencit dibagi menjadi lima kelompok yang terdiri dari kontrol negatif (Aquadest), kontrol positif (Glibenklamid 5 mg/Kg BB), dosis 1 (4 mg EEDCH/kgBB), dosis 2 (8 mg EEDCH/kgBB), dosis 3 (12 mg EEDCH/kgBB). Hasil skrining fitokimia menunjukkan bahwa ekstrak etanol daun cincau hitam positif mengandung alkaloid, flavonoid, tanin, dan saponin. Hasil analisis pada EECDH menunjukkan bahwa total flavonoid sampel yang diuji adalah sebesar 4,9 mg QE/g. Hasil pengujian aktivitas antihiperglimek menunjukkan bahwa mencit putih jantan diabetes didapati mengalami penurunan kadar gula darah pada hari ke 14 dan 21 masing-masing sebesar 26,33% dan 43,89%; 27,46% dan 44,32%; 39,89% dan 57,37% pasca pemberian yang EEDCH pada dosis 1, 2 dan 3.
Design Autonomous Drone Control For Monitoring Tea Plantation Using Dynamic Programming and Kruskal Algorithm Andri Agustav Wirabudi; Rendy Munadi; Angga Rusdinar; Dadan Rohdiana; Dong Ho Lee
eProceedings of Engineering Vol 6, No 1 (2019): April 2019
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

AbstractIndonesia is a country with the largest tea producers in the world, with a very large area needed tools to be able to help monitor the area of tea plantations as a whole. Unmanned Aerial Vehicle (UAV) wash chosen as a solution for the monitoring proses. Optimum flight path calculation is needed in order to produce good quality images, and also it influence to power consumption. The algorithm proposed in this study is Dynamic Programming and Kruskal Algorithm. Implementing these two network algorithms is expected to find the optimal path in aerial photography. The experimental results showed that the algorithm produced the optimum path , and more efficient power consumption than conventional lines. Image data obtained during tea plantation monitoring produced high-quality images, with the accuracy of each map above 90% and the assumption of errors below 5%. Keywords—Unmanned Aerial Vehicle UAV, Monitoring, Dynamic Programming, Kruskal, Mapping.
Antidiabetic activity of of green tea ethanol extract on white mouse Dadan Rohdiana; Adang Firmansyah; Anik Setiawati; Nuni Yunita
Jurnal Penelitian Teh dan Kina Vol 15 No 1 (2012)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v15i1.19

Abstract

In China, India, United State, and some small other countries, tea has been consumed to prevent various disease, such as diabetes mellitus. A number of recent research revealed that consumption of green tea has an impact on the ability of insulin sensitivity in reducing glucose content in human body. Research to know antidiabetic activity of ethanol extract of green tea on experimental rats has been conducted using glucose tolerance method on rats. Results showed that application of 720 mg/kg BW of ethanol extract of green tea at 120, 180, and 240 minutes after application could reduce glucose content in the body. While applications of 180 mg/kg BW and 360 mg/kg BW of ethanol extract of green tea reduced glucose content of the body at 180 and 240 minutes after application respectively.
Analysis of individual cathecin from green tea extracted and fractionated by column chromatography Dadan Rohdiana; Shabri Shabri
Jurnal Penelitian Teh dan Kina Vol 15 No 2 (2012)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v15i2.24

Abstract

A study determination of solvent and eluent on extraction process and fractination of individual cathecin especially epigallocathecin gallate (EGCG) by column chromato­graphy method. This study devided on two steps, i.e. determination of raw material, sol­vent, process optimation for extraction and fravtination of green tea extract, evapo­ration and drying. Characterization of polyphenol conducted by visible spectro­photo­meter, analysis of individual cathecin by HPLC. This study was did in Laboratory of Processing Technology and Laboratory of Testing for Tea and Cinchona, Research Institute for Tea and Cinchona, at September 2007 up to March 2008. Result of this study shown that ratio of solvent aceton and water 7:3 v/v, ratio of tea and solvent 1:15 w/v for 15 minutes at 55-60ºC obtained 53.39% polyphenol on extract and yield gradiently produce extract with purity of cathecin is 94% b/b, EGCG 64.03% from feed with cathecin content is 82.96% w/w and EGCG 42.34% w/w.
Activity DPPH (1,1-diphenyl-2-picrylhidrazyl) free radical scavenging of some ready to drink teas on Dadan Rohdiana; Shabri Shabri
Jurnal Penelitian Teh dan Kina Vol 15 No 2 (2012)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v15i2.25

Abstract

Research of free radical scavenging activity of some ready to drink tea (RTD-Tea) was carried out. Generally, the result showed that tea beverages have a good of scavenging activity against DPPH free radical. T-AR was RTD-tea which has the stronger sca­venging activity against DPPH free radical. This RTD-tea has a low of EC50 value i.e. 63,55ml/ml. The scavenging activity followed were T-ES (63,95ml/ml), T-UP (65,75ml/ml), T-RO (86,85ml/ml), T-LI (91,15ml/ml), T-TA (107,53ml/ml), T-NG (125,36ml/ml) and T-AK (756,14ml/ml) respectively.
Co-Authors A Rustamsyah A Rustamsyah, A Achmad Imron Rosyadi Adang Firmansyah Akhmad Endang Zainal Hasan Amalia Rahma Ananda, Marsha Radhia Andita Mega Priantiwi Andita Mega Priantiwi, Andita Mega Andri Agustav Wirabudi Angga Rusdinar Anik Setiawati Anik Setiawati, Anik Ardi Rustamsyah Ardi Rustamsyah Arista Budiman Arista Budiman, Arista Asep W. Perdana Asri Widyasanti Awaliah, Nisa Azmi, M. Haikal Beauty Azhary Bina Lohita Sari Budi Setiawan Cece Sumantri Citra Ratu Pelangi Citra Ratu Pelangi, Citra Ratu Clara Meliyanti Kusharto Darningsih, Sri Dede Zainal Arief, Dede Zainal DIMAS ANDRIANTO Dinda Nuraini Maulfida Dini Febrianty Dong Ho Lee Dwi Putra, Januar Hafiz Dwiyan Nugraha Dytha Andri Deswati, Dytha Andri Ekatama, Novriana Evy Damayanthi Faillah, Umi Lutfiatul Fani Fauziah Farddani, Chintya Listiarsi Fauzan, Fajar Akmal Fauzi, Ridho Hadi Riyadi Hanipah, Anida Hanny Hafiar Hasna Zakiyah Heddy Julistiono Heri Aryadi Hidayat, Taufik Septiyan Hijaya, Andi Hilman Maulana Hilman Maulana Hilman Maulana I Gusti Bagus Wiksuana Ida Maryam Ika D. Mayangsari Ikrawan, Yusep Isti Agnia Lutfiah Isti Agnia Lutfiah, Isti Agnia Komar Ruslan Wirasutisna Komar Ruslan Wirasutisna Kristin, Julia M Iqbal Prawira-Atmaja M. Iqbal Prawira-Atmaja Mamay Somantri Mamay Somantri, Mamay Marlinda Adham Martini, Rina Maryam, Ida Mimin Kusmiyati, Mimin Miranti Putri Utami Muhamad Alvin Adriyan Muhamad Insanu Muhammad Insanu Muhammad Iqbal Prawira-Atmaja Mukhammad Iqbal Prawira-Atmaja Mukhammad Iqbal Prawira-Atmaja Murdijati Gardjito Novi Susanti Nuni Yunita Nuni Yunita, Nuni Nurlita, Selvi Nurzanah, Fitri Prawira-Atmaja, Mukhammad Iqbal Rachmat Mauludin Rahayu, Dien Puji Rendy Munadi Rimbawan , Rimbawan Rimbawan Rina Martini Rohayati Suprihatini Rosialani, Resa Rosyanne Kushargina Rosyanne Kushargina Sahara, Putri Siti Sari Agustin Shabri Shabri Shabri Shabri Shabri Shabri Shabri Shabri Shabri Shabri, Shabri Siti Hajar Siti Hajar Sri Anna Marliyati Sri Raharjo Sugeng Harianto Sugeng Harianto SUGENG HARIANTO Sugeng Haryanto SUHARYANTO SUHARYANTO Syumillah Saepudin Tri Halimah Tri Panji Yayat Sudaryat Yunita Al-Azzahra Yusianto Yusianto Yusianto Yusianto, Yusianto Zahra, Nur Adni Azkia Zanil Musa