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Pusat Penelitian Teh dan Kina, Gambung, Desa Mekarsari, Kecamatan Pasirjambu, Kabupaten Bandung, Jawa Barat 40972
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Jurnal Sains Teh dan Kina
Published by Pusat Penelitian Teh dan Kina
ISSN : -     EISSN : 29622034     DOI : -
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Computer Science & IT Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Penelitian Teh dan Kina is a national journal providing rapid publication of peer-reviewed articles concerned with tea and cinchona commodities based on the aspects, agronomy, plant breeding, soil science, crop protection, postharvest technology and social economy. Papers dealing with result of original research on the above aspects are welcomed with no page charge.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 226 Documents
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The effect of drought period on attack intensity of Empoasca sp and blister blight in Gambung tea plantation Erdiansyah Rezamela; Fani Fauziah; Salwa Lubnan Dalimoenthe
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.111

Abstract

El-Nino had a significant impact on micro climate change including in rainfall, temperature and air humidity in Gambung Tea Plantation. In the dry season 2015, Gambung experienced four dry months that affect attack intensity of Empoasca and disease intensity of Blister Blight. This study aimed to determine the relationship between micro climate parameters and attack intensity of Empoasca and disease intensity of Blister Bright. Micro climate observation data were taken from Davis Automatic Weather Station (AWS) including rainfall intensity (mm), relative humidity (%) and maxium air temperature (0C). Attack intensity of Empoasca sp and Blister Bligh were observed by counting the number of healthy P+3 shoots as well as infected shoot from 200-500 gram of wet shoot sample randomly taken from container net at the plucking time. The results showed that the intensity of Empoasca decreased from 16.49% to 12.90% in the dry months from July to October 2015. The disease intensity of Blister Blight only occurred in July. There was a polynomial relationship among rainfall, temperature and humidity to the attack intensity of Empoasca with R2 values of 0.71, 0.77, 0.87, respectively the decrease of attack intensity occurred at ranfall intensity >140 mm, temperature >28°C and humidity >80%. Meanwhile linear relationship occurred among rainfall, temperature and humidity to the disease intensity of Blister Blight with R2 values of 0,98; 0,64; and 0,77, respectively the increasing of rainfall and humidity caused the increasing of disease intensity of Blister Blight. However disease intensity of Blister Blight decreased with increase in ambient temperature.
Xantine oxidase inhibition activity of infusion and ethanol extract of white tea Ardi Rustamsyah; Sarah Nur Islami; Fitriana Fitriana; Mimin Kusmiyati
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.112

Abstract

Research of xantine oxidase enzyme inhibition activity of infusion and ethanol extract of white tea were done. The aim of this research was to evaluate  xantine oxidase inhibitory activity of infusion and ethanol extract of white tea. Phytochemical screening on dry tea, infusion and ethanol extract of white tea showed that all samples contained alkaloid, flavonoid, quinone, tannin and tritherpenoid/ steroide. The IC50 value of samples were 76,64 μg/ml and 31,11μg/ml respectivelly. This study used allopurinol as standard with IC50 was 0,60 μg/ml.
Inhibition activity of α-glucosidase by infusion and ethanol extract of white tea and stevia combination Elvi Trinoviani; Ai Kholisoh; Nisa Fitriani Ar-Rifa; Ardi Rustamsyah
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.113

Abstract

Ethanol extract of white tea and its stevia liquor was observed for α-glukosidase inhibition. The research was divided into some steps;  white tea and stevia combination hedonic sensory test, phytochemical identification, and α-glucosidase inhibition activity. The result of hedonic sensory test incline towards formula 2 which consist 75% of white tea and 25% stevia. Further, this formulation was extracted by ethanol for α-glucosidase inhibition activity test. Formulation 2 liquor tested for enzyme inhibition activity showed IC50 value was 36,96 µg/ml, better than ethanol extract and acarbose. Phytochemical identification presented that both preparations contained alkaloids, flavonoids, saponins, tannins, triterpenes/steroid, and quinones.
Analysis of Tea Rhizosphere Bacterial Community at the Seedling Stage Using Terminal Restriction Fragment Length Polymorphism (TRFLP) Techniques Dwi Ningsih Susilowati; Fani Fauziah; Eko Pranoto; Ernin Hidayat; Mamik Setyowati; Yati Rachmiati
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.114

Abstract

Bio-imunizer contains an active compound of  Chryseobacterium sp. and Bacillus sp. has been developed by PPTK Gambung. This formula has positive effect on the growth of tea plants also potentially increasing resistance of the plant. The purpose of this study was to determine the effects of bacteria in Bio-imunizer to the rhizosphere bacterial communities as well as the consistency of its existence after application on tea plants at the nursery stage. The technique used in this research is Terminal Restriction Fragment Length Polymorphism based on metagenomic and culture dependent approaches. The value of relative abundance, Shannon diversity index, Pielou's evenness index, and Simpson dominance index were calculated. Based on the T-RF profiles of rhizosphere bacterial communities show that Chryseobacterium sp. and Bacillus sp. which is the active compound of  Bio-imunizer consistently found in the tea plant rhizosphere. Application of Bio-imunizer can increase the diversity of rhizosphere bacterial community without affecting the communities that already exist.
The growth test of tea clones (Camellia sinensis) from cross pollination first generation clones Vitria Puspitasari Rahadi; Heri Syahrian; Bambang Sriyadi
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.118

Abstract

Efforts to improve the productivity of tea needed new high yielding clones were obtained from the cross and easily propagated vegetatively. Preliminary testing of the clones  needs to be done to determine the growth of cuttings and rooting properties of tea clones from hybridization which are selected by potential production. This study used a Randomized Complate Block Design with three replications. The treatments consist of 14 clones from crosses and GMB 7 as clone comparison. The data is analyzed by using ANOVA and Scott Knott test with the level of 5%. The observations are intended to look at the growth of roots and shoots by dismantling seedling in polybag predetermined randomly at each observation. The results showed that the clones tested had good growth with a low mortality rate, and easily propagated vegetatively. The S / R ratio also showed shoot growth more faster than the growth of root. This character is advantageous because the most appropriate selection criteria for planting in the field.
Vegetative growth ability of artificial cross pollinated of tea clones Heri Syahrian; Vitria Puspita Rahadi; Endi Ruhaendi; Budi Santoso
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.119

Abstract

Vegetative propagation is common system that carried out in tea propagation. Seedling propagation was not reliable due to time consuming and phenotypic variability in seed plant. Despite yield potential, good quality, pest and disease resistant characters, the easy of vegetative propagation is very important character in tea breeding process. The aim of this study is to selected clones that resulted by artificial pollination for an ability of vegetative propagation character. Plant materials that tested in this experiment were the seed from the vegetative propagation of 14 clones, and GMB 7 clone as a control. Randomized Block Design was used in this experiment by 3 replications. The data analysis was ANOVA and Scott Knott test. The result of the experiment showed that clone number 41, 45, 38, 149, X5, X3, 122, 78, and 44, were the easiest clones to be vegetative propagated.
Synthesis and isolation of theaflavin from fresh tea leaves as bioactive ingredient of antioxidant supplements Shabri Shabri; Hilman Maulana
Jurnal Penelitian Teh dan Kina Vol 20 No 1 (2017)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v20i1.120

Abstract

Theaflavin (TF) is a product of catechin oxidation that give contribution to golden yellow color, brightness, briskness of black tea and has a potential as natural antioxidant activity. TF has a higher superoxide radical capture rate than EGCG (Epigallocatechin gallate). The study was to synthesize TF components in the form of extracts that have high antioxidants. Materials used in this research is bud+3 leaves from RITC clone (GMB 7). The research were caried out used 15 liters of tea leaves pulp per treatment, fermentation using fermentor with 15 L/min, 20 L/min and 25 L/min airflow treatment, separation of TF from thearubigin (TR) used 2.5% NaHCO3, and isolation of TF from impurity compounds used silica gel column with ethyl acetate/hexane as eluent, and DPPH (1,1-diphenyl-2-picryl hydrazyl) for antioxidant activity. The result showed that TF synthesis of fresh tea leaf catechin at water-air rate of 25 liters/minute could produced TF extract and yield TF purity extract with 1.01% and 39.15% in dry weight respectively after isolation by silica gel column. Antioxidant activity by DPPH from TF extract showed the smallest value of EC50 is 12.16 mg/L at 150 mg dose and its activity increased with the addition of concentration of TF extract.
Antidiabetic mellitus activity of low grade black tea in alloxan induced male albino mice Dytha Andri Deswati; Zahra Nur Maryam
Jurnal Penelitian Teh dan Kina Vol 19 No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v19i2.121

Abstract

Tea (Camellia sinensis [L]) has a very potential character of quality and biological activities. Potential activity of black tea such as antidiabetic been proven by several studies. Grade of black tea was classified based on colour, shape, size and density of particles.  This study aims to evaluate the most optimal antidiabetic activity of low grade black teas;BT II, DUST III, BBL and BTL in alloxan induced male albino mice. The results showed that liquor of black tea grade DUST III has blood glucose lowering activity with the most optimal percentage reduction 49.07% with a significant difference in the positive control group (p <0.05).
Study of development of agro-tourism potential on tea small-holder Lucyana Trimo; Iis Nurafifah
Jurnal Penelitian Teh dan Kina Vol 20 No 1 (2017)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v20i1.122

Abstract

Tea Small-Holder can be managed as an agro-tourism destination which becomes a very popular tourist destination in the present and future, domestically and also for foreigners; that can support Government in providing jobs in the rural area; develop the countries itself; increase regional income and rural communities, and also support the environment conservation. The objective of this research is to describe agro-tourism potential of Tea Small-Holder at Desa Pulosari, Kecamatan Pangalengan Kabupaten Bandung, and search the potential products to be developed as a main tourism object. Case study method was used in this research, whereas the informants were appointed purposely and data were analyzed by triangulating method. Several potentials of tea plantation which can be used as an agro-tourism of Kelompok Tani Neglasari and people surrounding Desa Pulosari, Kecamatan Pangalengan are as follows: a) the main facilities are already available and adequate enough and objects of tourism such as tea plantation and tourist attractions such as art and culture e.g. Singa Depok, Pencak Silat and harvest ritual; b) supplementary facilities such as culinary and lodging facilities which provided by local villagers. Tourism products which can be offered by the locals to the tourists are: Package I: lodging facility and tour of nature, culinary, knowledge (e.g. tea commodities), and culture (harvest ritual);  Package II: lodging facility and tour of nature, culinary, knowledge about tea, and in addition there are other supporting activities, e.g. tour of knowledge related to coffee and horticulture; culture, e.g. as Singa Depok performance; Package III : Package II equipped with knowledge of farm animals e.g. livestock dairy cattle, and tour of culture, e.g. harvest ritual, Singa Depok and Pencak Silat.
Analysis of company performance measurement using Green Supply Chain Management Method on bussiness unit of black tea Ikhda Nikmatul Mukharromah; Panji Deoranto; Siti Asmaul Mustamiroh; Kralawi Sita
Jurnal Penelitian Teh dan Kina Vol 20 No 1 (2017)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v20i1.123

Abstract

Competition black tea bussiness currently is no longer competition between companies but competition in supply chain network. PPTK Gambung as company and research institution that manage business unit of black tea so far nor been the identification of performance indicators Green Supply Chain Management (GSCM), to understand the condition of black tea business unit performance integrated overall both the process and operation. The aim of this study which provides recommendations for improvement to the company in improving the performance of the bussiness unit of black tea which has not reached the expected target. Performance measurement in this study using GSCM involving Analytical Hierarchy Process (AHP) for weighting KPI, Scoring System method Objectives Matrix (OMAX), and Traffic Light System (TLS) to analyze the scores of environmental performance assessment are classified by color. The aim of this study which provides recommendations for improvement to the company in improving the performance of which has not reached the expected target. From the result, it can be seen that Index Performance Indicator is 5,35 company which means the PPTK Gambung performance has yet to be reached despite the are approaching the target,. Based on the results obtained 31 KPI valid OMAX which consists of 18 KPI that have reached the target; 1 KPI has yet to be reached despite the are approaching the target and 11 KPI that have a performance targetless. Based on these results can be made efforts to improve the performance of the company by making an integrated measurement that includes all existing processes (upstream - downstream) and periodically for maximum performance can be achieved, so it can be a consideration and evaluation for the company to overcome the performance problems companies either preventive action or corrective action.

Page 17 of 23 | Total Record : 226

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