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Jurnal Sains Teh dan Kina

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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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Briskness index of black tea based on arrangement technique of brewing period Rohdiana, Dadan; Shabri, Shabri
Jurnal Penelitian Teh dan Kina Vol 17, No 2 (2014)
Publisher : Research Institute for Tea and Cinchona

Research of briskness index of black tea base on arrangement technique brewing period has been done. The aim of this research is to find the best brewing periode arrangement technique which indicated the height of briskness index by determine of theaflavin and caffeine content. Result of this research shown that brewing periode arrangement for 12 minutes initiated brewing for 3 minutes has the highest of briskness index, i.e. 22.71 with theaflavin and caffeine content were 0,29% and 0,97% dry basis respectively. In contras, brewing periode arrangement technique for 3 minutes initiated by brewing periode 12 and 6 minutes respectively were liquor with the lowest of briskness index i.e. 13.73 with theaflavin and caffeine content were 0.10% and 0.66% dry basis respectively. This research concluded that black tea could be brewed until 3 times.

Strategic formulation to increase white tea competitiveness (Case study: Research Institute for Tea and Cinchona) Hage, Stevan Gneissanda; Daryanto, Arief; Sahara, Sahara
Jurnal Penelitian Teh dan Kina Vol 18, No 2 (2015)
Publisher : Research Institute for Tea and Cinchona

White tea is a new product in Indonesiaâs tea industry. It is a product developed by Research Institute for Tea and Cinchona in order to revive Indonesiaâs tea industry. White tea has uniqueness in its relatively high price and high market demand that not affected by its high price. The increasing number from Indonesiaâs middle class income could also become white teaâs new potential consumer because they put quality and health first than the price. White teaâs high price and demand attract new players in this industry. The appearence of new competitors make this in-dustry more competitive. Thatâs why itâs necce-sary to find a way to win the compettion and to keep the domination in the white tea industry through strategic formulation. There were two steps in strategic formulation used to produce the strategies. The first is analyzing the com-pany environment using internal factor evalua-tion (IFE) and external factor evaluation (EFE). The second is using internal and exter-nal (IE) matrix and strength weakness oppor-tunity and threat (SWOT) analysis. IE matrix showed the position of company using infor-mation from IFE and EFE. SWOT analysis resulted strategies using information from the companyâs strength, weakness, opportunity, and threat. IFE and EFE showed that the company has strong internal power and good respond to external factors. IE matrix showed that com-pany is in grow and build stage. IE matrix and SWOT analysis showed that the alternative strategies for the company are market pene-tration, market development, product develop-ment, forward integration, backward integ-ration, and side integration.

Aplication of techno-marketing programme package of Indonesian orthodox black tea to analyze the Russian Federation market Suprihatini, Rohayati
Jurnal Penelitian Teh dan Kina Vol 16, No 2 (2013)
Publisher : Research Institute for Tea and Cinchona

In order to increase market share as well as competitiveness of Indonesian orthodox black tea in Russian Federation as the biggest Indonesian tea export destination, a research to analyze Russian Federation market applying tea techno-marketing programme package especially to finding suggestions in improving process production has been conducted. This programme consist of Data Base Management System, Knowledge Base Management System, Model Base Management System, and Dialogue Management System. Four data analysis techniques were applied namely (1) market trend, (2) comparative performa index (CPI), (3) constant market share (CMS), and (4) quality function deployment (QFD). The results showed that the Russian Federation market prefer the medium grown tea which is dominated by broken grade (91%). Minimum sensory test score for appearance of made tea, taste, aroma, and colour of liquor as well as infused leaf to be accepted in Russian Federation market were medium. To comply with a request of Russian Federation market, main production process aspects had to be improved, were the quality of tea shoots, had to be 65% minimum, and the rolling programme in factory to result in 90% of broken grades.

Antidiabetic mellitus activity of low grade black tea in alloxan induced male albino mice Deswati, Dytha Andri; Maryam, Zahra Nur
Jurnal Penelitian Teh dan Kina Vol 19, No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

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. Â 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).

Superior sinensis tea clones release of GMBS 1, GMBS 2, GMBS 3, GMBS 4, and GMBS 5 Sriyadi, Bambang
Jurnal Penelitian Teh dan Kina Vol 14, No 2 (2011)
Publisher : Research Institute for Tea and Cinchona

Developing of Indonesian green tea with international standards must be supported by availability of exellence sinensis tea plant materials with hight yielding and good quality. Selection mother bush using genetic plant materials of seedling sinensis tea plants at Pasir Sarongge were found 42 exellence mother bushes or 1,35 % from 31.104 bushes collection, but three clones were poor in rooting ability and 11 clones were succeptible to blister blight. We found 28 potential clones with hight yielding, good rooting ability, and resistance to blister blight. Testing material indicated that 15 clones with high yield, good quality, andÂ good taste. Multi-location tests in three years showed that I.2.167; II.1.1; II.1.46; II.2.157; and II.3.109 clones were high in yielding ability and with good stability in performance and broad adaptability. These clones were officialy release by The Evaluation and Variety Release Committee of the Department of Agriculture on its meeting on March 5, 2009 followed by minister decrees of release of these clones as follows: decree number 1979/Kpts/SR.120/4/2009 concernÂing release of GMBS 1 clones, 1980/Kpts/SR.120/4Â/2009 concerning release of GMBS 2 clones: 1981/Kpts/SR.120/4/Â2009 concerning release of GMBS 3, 1982/Kpts/SR.120/4/ 2009 concerning release of GMBS 4 clones, and 1983/Kpts/SR.120/4/2009 concerning release of GMBS 5.

The effect of pottasium (K) on the development of scarlet mite (Brevipalpus phoenicis Geijske) population at tea crop (Camellia sinensis (L.) O. Kuntze) Sucherman, Odih
Jurnal Penelitian Teh dan Kina Vol 17, No 1 (2014)
Publisher : Research Institute for Tea and Cinchona

A research experiment to know the effect of pottasium on the population development of scarlet mite and growth of young tea was carried out. The experiment was conducted at Green House of Plant Protection Department Research Institute Tea and Cinchona GamÂbung, Bandung, West Java, from December 2011 until July 2012. The soil type used is Andisol and altitude is 1.250 m above sea level. The treatments were potassium fertilizer appliÂcations of 0, 30, 40 (standars treatment), 50, 60, 70, 80, 90, and 100 kg K20/ha/year; in which the 0 dosage was used as untreated control. The result of the experiment showed that: pottasium fertilizer at the dosage 70 kg K2O/ha/year to 100 kg K2O/ha/year reasonably effective in pressuring the development of the population development of scarlet mite and increasing the number of leaves as indication of rising class seedlings on young tea. Pottasium fertilizer at the medium dosage 70 kg K2O/haÂ/year reasonably effective in pressuring the development of the population development of scarlet mite and increasing the number of leaves as indication of rising class seedlings, when compared to the standards (40 kg/ha/y) and control dose on young tea.

Alkaloid profile of endophytic Diaporthe spp. from Cinchona calisaya Radiastuti, Nani; Rahayu, Gayuh; Okane, Izumi; Hidayat, Iman; Achmadi, Suminar S.
Jurnal Penelitian Teh dan Kina Vol 18, No 1 (2015)
Publisher : Research Institute for Tea and Cinchona

Endophytic fungi have been known as potential source of bioactive compound, similar to their host.Â This study was conducted to identify endophytic Diaporthe spp. isolated from Cinchona calisaya and to explore their potential in producing alkaloids, particularly quinine. A total of 39 strains of Diaporthe spp. were identified using ITS1-5.8S-ITS2 and EF1-Î± gene. Seventeen strains have species name and they represent eight species of Diaporthe i.e. D. cynaroidis, D. endophytica, D. ganjae, D. gardeniae, D. litchicola, D. phaseolorum, D. pseudomangiferae, and D. rhoina. The reÂmaining 22 strains represents 15 groups of unidentified Diaporthe sp. High performance liquid chromatography analyses of chloroform extract of 21-days old static cultures of all fungi in potato dextrose broth showed that these strains produce totally 82 different alkaloids. Each strain producedabout 2-38 different alkaloids. Sixteen out of 39 strains (41%), i.e. one strain each of D. endophytica, D. garÂdeniae, Â D. phaseolorum, and Â D. pseudoÂmangiferae, 2 strains of D. litchicola, and 10 strains of unidentified Diaporthe were able to produce quinine. The quinine concentration ranges from 1.1 mg/l to 155.2 mg/l. By using Jaccardâs similarity index 0.44 as the cutting score, UPGMA analyses of alkaloid profile of these strains shows that these strains forms 23 clusters. Alkaloid profile clustering does not support the phylogenetic grouping. This indicates that the alkaloid profile is strain dependent. Some potential strains should be further investigated for optimization of their quinine production.

Inhibitory activity of Escherichia coli by type of teas and its liquors Rohdiana, Dadan; Arief, Dede Zainal; Budiman, Arista
Jurnal Penelitian Teh dan Kina Vol 16, No 1 (2013)
Publisher : Research Institute for Tea and Cinchona

Study of analysis polyphenol content on tea, liquor, and its activity as antibacterial on Escherichia coli has been done conducted in Laboratory of Research, Department of Food Technology, Pasundan University, and Laboratory of Chemistry, Department of Chemistry, Faculty of Mathematic and Natural Science, Padjadjaran University. The result of this research showed that green tea sample has the highest polyphenol content, i.e. 23,18% followed orthodox and CTC (crushing tearing curling) black tea samples i.e. 14,23%Â and 13,93% respectively. Activity of inhibitory on E. coli showed that ratio tea and water 2 : 50 w/v has the best inhibition i.e. 117,71 mm2.

The effect of drought period on attack intensity of Empoasca sp and blister blight in Gambung tea plantation Rezamela, Erdiansyah; Fauziah, Fani; Dalimoenthe, Salwa Lubnan
Jurnal Penelitian Teh dan Kina Vol 19, No 2 (2016)
Publisher : Research Institute for Tea and Cinchona

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 >28Â°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.

The control of penny fern in tea through pruning and herbicides Darana, Sobar
Jurnal Penelitian Teh dan Kina Vol 14, No 1 (2011)
Publisher : Research Institute for Tea and Cinchona

Study on the control of penny fern in tea through pruning and herbicides was conÂductÂed in Pasir Sarongge Experimental Garden, 1.100 m asl from August to November 2010. Experimental design used was split plot design, consisted of three main plots and six subplots. The main plot (pruning height) consisted of (A) 40 cm pruning height, (B) 55 cm pruning height, and (C) 70 cm pruning height. The subplot (method of weed control), consisted of: (1) glyphosate herbicide at 6 liters/ha, (2) paraquat dichloride herbicide, at 4 liters/ha, (3) 2,4-D herbicide, at 3-3 liters/ha, (4) a comÂbination of glyphosate herbicide + 2,4-D at 6 liters/ha, (5) a combination of glyphosate and picloram herbicides, at 4 liters/ha, and (6) manual conÂtrol of the fern. The total treatment combination was 18 treatments. Each treatment was repeated twice. Observations were made on weed biomass and the growth of tea plants. Weed biomass were observed 3 times with 2-weeks interval, starting at 2 weeks after treatment of weed control. Â The growth of tea plants was observedÂ trought the number of primary shoots. The results showed thatÂ the 40 cm as well as 55 cm pruning height were provided better effectivity compared to 70 cm pruning height. At the third observation, the effectiveness of manual control was similar to the treatment of chemical control, except the treatment ofÂ single 2,4-D. The number of primary shootsÂ grew on bush after 70 cm pruning height were higher and significantly different compared to the 40 cm pruning height as well as 55 cm pruning height. In every observations, the highest number of primary shoots per bush were consistently obtained from the treatment of combination ofÂ glyphosate and 2,4-D herbicides.

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Editorial Address Pusat Penelitian Teh dan Kina, Gambung, Desa Mekarsari, Kecamatan Pasirjambu, Kabupaten Bandung, Jawa Barat 40972

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Contact Name
Fani Fauziah

Contact Email
fanif6@gmail.com

Phone
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Journal Mail Official
pptksharingknowledge@gmail.com

Editorial Address
Pusat Penelitian Teh dan Kina, Gambung, Desa Mekarsari, Kecamatan Pasirjambu, Kabupaten Bandung, Jawa Barat 40972

Location
Kota bandung,

Jawa barat

INDONESIA