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Analisis kandungan teaflavin dan tearubigin pada teh hitam yang diolah melalui metode pelayuan kimia bertahap Shabri Shabri; Dr. Dadan Rohdiana; Hilman Maulana; Sugeng Haryanto; Muhammad Iqbal Prawira-Atmaja
Jurnal Penelitian Teh dan Kina Vol 21 No 1 (2018): Jurnal Penelitian Teh dan Kina
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v21i1.142

The instability of tea shoots supply from the plantation to the factory was often a problem. In the flush season where tea shoots are abundant, an overcapacity often leads to the uncontrollable withering process. This problem was the cause of the decreased quality of black tea. Theaflavin (TF) and Thearubigin (TR) were chemical substances that positively correlated to the black tea quality. This research conducted to characterize TF and TR quality in two-stages chemical withering. This research treatment consists of two treatments, namely treatment A (plus season), treatment B (minus season), and one control/routine production (treatment C). Treatment A and B used 25 kg of fresh tea shoots to be withered, the first stage was to wither the leaves until it reached 60%, 65%, and 70% of water content. The second stage was to blended those leaves at the first stage and withered it until it reached about 54-56%. For treatment A and B, the enzymatic oxidation (fermentation) time used 90 minutes. Treatment C used 25 kg of fresh tea shot that processed as normal routine production of black tea orthodox-rotor vane process, with enzymatic oxidation time 110 minutes. Every treatment was repeated 3 times. Treatment A produced TF of 0,97% d.b and TR of 15,39 d.b. (ratio 1:15,97). And treatment C produced TF of 0,92% d.b and TR of 13,69% d.b. (ratio 1:14,82). It was concluded that two-stage chemical withering was able to maintain the chemical and organoleptic qualities of black tea.

Karakteristik pelet kayu dari limbah pangkasan teh berdasarkan besaran partikel Sugeng Harianto; Muhammad Iqbal Prawira-Atmaja; Shabri Shabri; Hilman Maulana; Dr. Dadan Rohdiana; Achmad Imron Rosyadi
Jurnal Penelitian Teh dan Kina Vol 21 No 1 (2018): Jurnal Penelitian Teh dan Kina
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v21i1.143

Biomass waste potential from tea pruning was high, however the utilization of the waste still low. Forming pellet from the waste was one of means for utilizing it to have value-added. Pelletization is a process of compressing the material to increase density value, calorific value, and to uniform the particle size. The method in tea pruning waste pelletization used because the waste is consists of dry twigs and leaves so it was easier in reducing the particle size as pellet raw material. This research purpose was to identify the wood pellet characteristics of various particle size from tea pruning waste, consisted of water content, ash content, and wood pellet density against calorific value produce. The material used in this research was tea pruning waste available all years in the experimental plantation of Reserach Institute for Tea and Cinchona Gambung that has been dried for three days. Pelletization process starts with reducing the tea pruning waste particle using Chopper machine to acquire dust particles. Afterward, those dust was separated into three treatments, which are, passed sieve number 7 mesh, 14 mesh, and 18 mesh. Calorific value produced from the wood pellet was the main factor from all pelletization process, the result show that the dust passed sieve number 18, which is the smallest particle size, has the highest calorific y value produced in the amount of 4.431 cal/g

Karakteristik nanopartikel ekstrak teh hijau dengan metode nano milling dan nano spray Shabri Shabri; Dr. Dadan Rohdiana; Hilman Maulana; Sugeng Haryanto; Muhammad Iqbal Prawira-Atmaja; Rachmat Mauludin; Muhammad Insanu; Asep W. Perdana
Jurnal Penelitian Teh dan Kina Vol 21 No 2 (2018): Jurnal Penelitian Teh dan Kina
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v21i2.146

Nanoparticles for raw materials of phytopharmaca is a technology used to be able to increase the effectiveness and efficiency of phytopharmaca in its absorption as a therapeutic agent. This study useds steamed green tea polyphenol extract as raw material with two nanoparticle methods, first nano milling by Planetary Ball Milling (PBM) and the second using encapsulation method with Nano Spray Dryer (NSD). The characteristics of nanoparticles were then analyzed using Particle Size Analyzer (PSA) and X-Ray Difraction (XRD) to determine the size, size distribution, and type of crystals formed by the two methods. The results of PBM had not been able to meet the criteria for nanoparticles because they had a particle size that is >1 µm, whereas the NSD method produced 554.7 nm nanoparticles with an intensity of 86.9%. And the results of the XRD analysis showed that the two methods of making nanoparticles resulted in amorphous particles >50%.

Karakteritik sifat alir bubuk teh hijau yang diproses dengan metode penepung berbeda Mukhammad Iqbal Prawira-Atmaja; Sugeng Haryanto; Hilman Maulana; Shabri Shabri; Dr. Dadan Rohdiana
Jurnal Penelitian Teh dan Kina Vol 21 No 2 (2018): Jurnal Penelitian Teh dan Kina
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v21i2.147

Recently, the public interest in green tea powder is increasing. Green tea powder is produced through the process stage: withering in hot steam, drying, and reducing size. The size reduction process on green tea powder is an important step because it will affect the characteristics of the powder flow properties. This study aims to determine the flow properties of green tea powder processed by different milling method. The milling method used are disc milling (DM) and stone milling (SM). Green tea powder was analyzed including moisture content, particle size distribution using dynamic laser scattering method, determined of bulk density (ρb), and tapped density (ρtap) to find out the Carr Index (CI) and Hausner Ratio (Hr). In addition, the lightness of color and shape and morphology of green tea powder were observed with SEM. The results showed that green tea powder produced from different milling methods have a Carr Index of 15 with “Good” flow properties. DM method produced darker green tea powder with L value (lightness) 49.91 and larger particle size (D50: 38.6 µm) compared with green tea powder produced by the SM method. Determination of flow properties of green tea powder can be applied for the utilization and development of food products and pharmaceutical products based on green tea powder.

Pelatihan Budi Daya Tanaman Kopi Di Desa Mekarmanik Kecamatan Cimenyan Kabupaten Bandung Dadan Rohdiana; Dadan Rohdiana; Dudung Ahmad Suganda
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 7 No 2 (2023): Amaliah: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v7i2.2060

Telah dilakukan pelatihan budi daya tanaman kopi di Desa Mekarmanik Kecamatan Cimenyan Kabupaten Bandung. Peserta pelatihan terdiri atas petani kopi yang tergabung dalam Lembaga Masyarakat Desa Hutan Tani Mutki Giri Jaya. Materi pelatihan diberikan secara teori dan praktek. Adapun materi yang diberikan meliputi agroklimat, persiapan lahan, penanaman, pemupukan, pemangkasan dan pengelolaan penaungan. Hasil pelatihan diperlihatkan bahwa agroklimat kebun kopi telah sesuai dengan kaidah yang berlaku baik dari sudut pandang iklim maupun tanah. Persiapan lahan dilakukan secara manual maupun kimiawi yang diikuti dengan pembuatan jalan-jalan produksi dan saluran drainase. Benih yang digunakan merupakan benih yang siap salur dan sehat. Kriteria benih siap salur telah memiliki minimal lima pasang daun normal dengan sepasang cabang primer. Benih ditanam sebatas leher akar, tanah dipadatkan kemudian polibeg yang telah disobek dengan parang/arit ditarik keluar. Pelaksanaan pemupukan telah mengikuti rumus 4 T, yaitu tepat waktu, tepat jenis, tepat dosis dan tepat cara pemberian. Secara umum pupuk yang dibutuhkan tanaman kopi ada 2 jenis, yaitu pupuk organik dan pupuk an-organik. Demikian juga dengan pemangkasan dan pengelolaan naungan, sudah sesuai dengan persyaratan yang berlaku.

Pelatihan Budi Daya Tanaman Kopi Di Desa Mekarmanik Kecamatan Cimenyan Kabupaten Bandung Dadan Rohdiana; Dadan Rohdiana; Dudung Ahmad Suganda
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 7 No 2 (2023): Amaliah: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v7i2.2060

Telah dilakukan pelatihan budi daya tanaman kopi di Desa Mekarmanik Kecamatan Cimenyan Kabupaten Bandung. Peserta pelatihan terdiri atas petani kopi yang tergabung dalam Lembaga Masyarakat Desa Hutan Tani Mutki Giri Jaya. Materi pelatihan diberikan secara teori dan praktek. Adapun materi yang diberikan meliputi agroklimat, persiapan lahan, penanaman, pemupukan, pemangkasan dan pengelolaan penaungan. Hasil pelatihan diperlihatkan bahwa agroklimat kebun kopi telah sesuai dengan kaidah yang berlaku baik dari sudut pandang iklim maupun tanah. Persiapan lahan dilakukan secara manual maupun kimiawi yang diikuti dengan pembuatan jalan-jalan produksi dan saluran drainase. Benih yang digunakan merupakan benih yang siap salur dan sehat. Kriteria benih siap salur telah memiliki minimal lima pasang daun normal dengan sepasang cabang primer. Benih ditanam sebatas leher akar, tanah dipadatkan kemudian polibeg yang telah disobek dengan parang/arit ditarik keluar. Pelaksanaan pemupukan telah mengikuti rumus 4 T, yaitu tepat waktu, tepat jenis, tepat dosis dan tepat cara pemberian. Secara umum pupuk yang dibutuhkan tanaman kopi ada 2 jenis, yaitu pupuk organik dan pupuk an-organik. Demikian juga dengan pemangkasan dan pengelolaan naungan, sudah sesuai dengan persyaratan yang berlaku.

Antibacterial Ingredients That Cause Diarrhea Can Be Made from Black, Green, and White Tea Extract (Camellia sinensis L.) Dadan Rohdiana; Akhmad Endang Zainal Hasan; Dimas Andrianto; Dadan Rohdiana; Heddy Julistiono; Muhamad Alvin Adriyan
Indonesian Journal of Applied Research (IJAR) Vol. 4 No. 3 (2023): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v4i3.353

One cause of diarrhea is a bacterial infection. Tea (Camellia sinensis) is a steeping drink that has the efficacy of treating diarrhea. This looks at goals to decide the effect of formulations of three tea extracts that act as antibacterial causes of diarrhea and decide the most appropriate maceration temperature. Extraction was carried out with water solvents at temperatures 70oC, 100oC, and 121oC. The disc method conducted an antibacterial test against E. coli and S. aureus. The most optimal temperature for producing the highest inhibitory zone is the temperature of 100oC. Tea extract temperatures of 100oC are used for antibacterial testing. BSLT test showed the LC50 value of 1800 µg/mL. Tests on E. coli bacteria showed the highest results in a single white tea extract with a diameter of 9.750 mm, and tests on S. aureus showed the highest results in the three tea extract formula with a diameter of 9.65 mm. The inhibitory area evaluation of the system changed into finished using the simplex-centroid design method. It showed a non-huge linear model in the antibacterial test in opposition to E. coli and S. aureus.

Pelatihan Budi Daya Tanaman Kopi Di Desa Mekarmanik Kecamatan Cimenyan Kabupaten Bandung Dadan Rohdiana; Dadan Rohdiana; Dudung Ahmad Suganda
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 7 No 2 (2023): Amaliah: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v7i2.2060

Telah dilakukan pelatihan budi daya tanaman kopi di Desa Mekarmanik Kecamatan Cimenyan Kabupaten Bandung. Peserta pelatihan terdiri atas petani kopi yang tergabung dalam Lembaga Masyarakat Desa Hutan Tani Mutki Giri Jaya. Materi pelatihan diberikan secara teori dan praktek. Adapun materi yang diberikan meliputi agroklimat, persiapan lahan, penanaman, pemupukan, pemangkasan dan pengelolaan penaungan. Hasil pelatihan diperlihatkan bahwa agroklimat kebun kopi telah sesuai dengan kaidah yang berlaku baik dari sudut pandang iklim maupun tanah. Persiapan lahan dilakukan secara manual maupun kimiawi yang diikuti dengan pembuatan jalan-jalan produksi dan saluran drainase. Benih yang digunakan merupakan benih yang siap salur dan sehat. Kriteria benih siap salur telah memiliki minimal lima pasang daun normal dengan sepasang cabang primer. Benih ditanam sebatas leher akar, tanah dipadatkan kemudian polibeg yang telah disobek dengan parang/arit ditarik keluar. Pelaksanaan pemupukan telah mengikuti rumus 4 T, yaitu tepat waktu, tepat jenis, tepat dosis dan tepat cara pemberian. Secara umum pupuk yang dibutuhkan tanaman kopi ada 2 jenis, yaitu pupuk organik dan pupuk an-organik. Demikian juga dengan pemangkasan dan pengelolaan naungan, sudah sesuai dengan persyaratan yang berlaku.

Antibacterial Ingredients That Cause Diarrhea Can Be Made from Black, Green, and White Tea Extract (Camellia sinensis L.) Dadan Rohdiana; Akhmad Endang Zainal Hasan; Dimas Andrianto; Dadan Rohdiana; Heddy Julistiono; Muhamad Alvin Adriyan
Indonesian Journal of Applied Research (IJAR) Vol. 4 No. 3 (2023): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v4i3.353

One cause of diarrhea is a bacterial infection. Tea (Camellia sinensis) is a steeping drink that has the efficacy of treating diarrhea. This looks at goals to decide the effect of formulations of three tea extracts that act as antibacterial causes of diarrhea and decide the most appropriate maceration temperature. Extraction was carried out with water solvents at temperatures 70oC, 100oC, and 121oC. The disc method conducted an antibacterial test against E. coli and S. aureus. The most optimal temperature for producing the highest inhibitory zone is the temperature of 100oC. Tea extract temperatures of 100oC are used for antibacterial testing. BSLT test showed the LC50 value of 1800 µg/mL. Tests on E. coli bacteria showed the highest results in a single white tea extract with a diameter of 9.750 mm, and tests on S. aureus showed the highest results in the three tea extract formula with a diameter of 9.65 mm. The inhibitory area evaluation of the system changed into finished using the simplex-centroid design method. It showed a non-huge linear model in the antibacterial test in opposition to E. coli and S. aureus.

UJI AKTIVITAS ANALGESIK FRAKSI DAUN SENGGANI (Clidemia hirta [L] D.Don) PADA MENCIT PUTIH GALUR SWISS WEBSTER Taufik Septiyan Hidayat; Dadan Rohdiana; Syumillah Saepudin; Dini Febrianty; Yunita Al Azzahra
Jurnal Buana Farma Vol. 4 No. 1 (2024): Jurnal Buana Farma : Jurnal Ilmiah Farmasi
Publisher : Fakultas Farmasi Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jbf.v4i1.935

Pain is a sensation that can interfere with activities and reduce the quality of life of the sufferer if left untreated and left prolonged. Senggani is one of the plants that contains flavonoid compounds and steroids that have analgesic activity. This study aimed to test the analgesic activity of senggani leaf fraction (Clidemia hirta [L] D.Don) in white mice swiss webster strain induced acetic acid and determine the fraction that most effectively produces analgesic activity. The type of research conducted is true experimental design based on Complete Randomized Design (RAL). The test animals used were 25 heads divided into 5 groups with 5 replications, namely negative control (CMC 1%), positive control (dexamethasone) and the test group of senggani leaf fraction, namely n-hexane, ethyl acetate, and ethanol fractions. The data obtained were analyzed using an alternative test from One Way ANOVA namely Kruskal Wallis with a follow-up test post hoc Mann Whitney test. The results showed that the fraction of senggani leaves in all types of solvents had analgesic activity compared to negative controls (CMC 1%) with a significant difference (p0.05). From these results it is concluded that the senggani leaf fraction can be used as an analgesic.

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