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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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The decreasing activity of white tea and green tea on smokers lipids profile Kushargina, Rosyanne; Rimbawan, Rimbawan; Setiawan, Budi; Rohdiana, Dadan
Jurnal Penelitian Teh dan Kina Vol 18, No 1 (2015)
Publisher : Research Institute for Tea and Cinchona

Smoking habit have many negative effect, including increased lipids profile. Researching on the effects of tea on lipids profile on smokers has been carried out using green tea. Research using white tea has been limited, therefore, this study aimed to analyze the effect of white tea than green tea on lipids profile in smokers, using paired sample of clinical trials design. The subjects were medium smokers (11-21 cigarettes/day) aged 30-45 years and have milddyslipidemia. Each subject was asked to drink tea in two times. Firstly, all subjects were asked to drink 3 x 200 ml white tea/day for 28 days. Secondly, treatment will be start after two weeks washout period, and they were asked to drink 3 x 200 ml of green tea/day for 28 days. Lipids profile (trigliserida (TG); cholesterol total (TC); low density lipoprotein-cholesterol (LDL-C)) of blood serum has been measured four times, at pre-post intervention of white tea and at pre-post intervention of green tea. The lipids profile were significantly decreased after white tea intervention (paired sample t-test, p<0,05). After green tea intervention,the lipids profile were decreased but significant (paired sample t-test, p<0,05) only for LDL-C. The independent sample t-test analysis showed that white tea has higher effect in decreasing the lipids profile greater than green tea, however not significantly different (p>0,05). This study was proved that white tea is more potential than green tea to decreasing lipids profile of smokers.

The effectiveness of formulation of brenuk botanical insecticide on Empoasca flavescens on tea Sucherman, Odih
Jurnal Penelitian Teh dan Kina Vol 16, No 1 (2013)
Publisher : Research Institute for Tea and Cinchona

An experiment to find out the effectiveness of formulation of brenuk botanical insecticide on Empoasca flavescens on tea was carried out at Pasir Sarongge Experimental Garden, Research Institute for Tea and Cinchona, from Juni up to September 2012. The experiment was designed in randomized complete block design with eight treatments and three replications. The treatment was consist of: (1) brenuk insecticide at 0,5 litre of EC formulation/ha, (2) brenuk insecticide at 1,0 litre of EC formulation/ha, (3) brenuk insecticide at 1,5 litre of EC formulation/ha, (4) brenuk insecticide at 0,5 litre of WP formulation/ha, (5) brenuk insecticide at 1,0 litre of WP formulation/ha, (6) brenuk insecticide at 1,5 litre of WP formulation/ha, (7) marigold insecticide at 1,5 litre of EC formulation/ha, and (8) control. The water spray volume used was 300 litre/ha. The observation parameters were the attack intensity of E. flavescens, the population of E. flavescens on the production of tea shoots. The experiment result indicated that the application of brenuk insecticide at 0,5 litre/ha in EC as well as WP formulations were efective in the decreasing of attack intensity of E. flavescens, as well as the population of Empoasca to the extend of 69,99% and 63,63% respectively. Indirectly, these treatments could increase the shoot production of tea plant.

Identification of catechin content and its derivates of tea germplasm collection clones Syahrian, Heri
Jurnal Penelitian Teh dan Kina Vol 19, No 1 (2016)
Publisher : Research Institute for Tea and Cinchona

Katekin merupakan salah satu poliphenol utama pada tanaman teh yang menjadikan teh sebagai minuman yang baik untuk dikonsumsi. Program pemuliaan tanaman teh dalam merakit klon yang memiliki kandungan katekin tinggi tidak dapat dilepaskan dari plasma nutfah teh. Informasi akan kandungan katekin klon koleksi plasma nutfah dapat menjadi pegangan bagi pemulia dalam melakukan seleksi tetua untuk proses persilangan buatan. Selain itu klon â klon koleksi plasma nutfah dengan kandungan katekin tinggi dapat dikembangkan langsung sebagai klon anjuran yang dapat meningkatkan kandungan katekin bagi para pekebun. Penelitian ini bertujuan untuk mengetahui kandungan katekin pada klon koleksi plasma nutfah teh. Percobaan dilakukan di Kebun Percobaan Gambung Pusat Penelitian Teh dan Kina, Kabupaten Bandung, Jawa Barat. Ketinggian tempat 1300 mdpl, dengan jenis tanah Andisol. Analisis kandungan katekin dilakukan di laboratorium dengan menggunakan metode yang tertera pada AOAC (1984). Bahan tanaman yang digunakan merupakan klon teh generasi pertama koleksi plasma nutfah sebanyak 10 klon, yaitu klon: Cin 20, Cin 29, Cin 149, RS 1, RB 1, RB 2, PS 354, PS 385, KP 2, SA 73. Karakter yang diamati dalam percobaan ini adalah kandungan katekin total, EGC, ECG dan EGCG. Analisis data yang digunakan adalah analisis keragaman dan uji lanjut menggunakan uji gerombol Scott-Knott. Hasil dari penelitian ini adalah (1) Kandungan katekin total dan derivatnya daiantara klon koleksi aksesi plasma nutfah berbeda-beda; (2) Klon dengan kandungan katekin total tertinggi adalah klon RB 1 dan terendah adalahÂ klon RS 1dan Cin 149; (3) Klon dengan kandungan EGCG yang tertinggi adalah klon RB 1 dan RB 2 dan terendah adalah klon Cin 149 dan RS 1. (4) Klon dengan kandungan ECG tertinggi terdapat pada klon Cin 149 dan terendah pada klon PS 354 dan Cin 20.

The effectiveness of various biological control agents on blister blight disease (Exobasidium vexans Massee) on tea Rayati, Dini Jamia
Jurnal Penelitian Teh dan Kina Vol 14, No 1 (2011)
Publisher : Research Institute for Tea and Cinchona

In order to obtain an effective, efficient, and environmentally sound biological control method of blister blight disease (Exobasidium vexans Massee) on tea, a field trial has been conducted to know the effectiveness of various antagonistic microorganisms as biological control agents, on blister blight disease. The trial was carried out at Ciliwung Tea Plantation (1.400 m asl), Bogor, West Java, designed in randomized complete block (RCB), with 7 treatments and 3 replications. The treatments tested comprised 2 filamentous fungi (molds): Verticillium sp. and JD (unidentified); yeast: Rhodotorula rubra; 2 bacteria: B5 (unidentified) and Bacillus subtilis; copper-chemical fungicide as a standard treatment; and control. The biological control agents and fungicide were sprayed on tea bushes infected by blister blight disease, and the parameter observed was blister blight disease intensity, which was formulated in percentage of disease intensity index (DII). The results showed that in heavy-attack condition (disease intensity index higher than 50%), only yeast Rhodotorula rubra which was effective in suppressing blister blight disease intensity on tea, up to 22%. Meanwhile, the others treatments of antagonistic microorganisms could not suppress the disease intensity, even the copper-chemical fungicide as a standard treatment was no longer effective too.

The effectiveness of the formulation of botanical insecticide marigold (Tithonia diversifolia) on Empoasca flavescens, a main pest on tea plant Sucherman, Odih
Jurnal Penelitian Teh dan Kina Vol 15, No 2 (2012)
Publisher : Research Institute for Tea and Cinchona

A research to know the effectiveness of formulation of botanical insecticide marigold (Tithonia diversifolia) on E. flavescens has been carried out at a green house of Research Institute for Tea and Cinchona (RITC), as well as at Pasir Sarongge Experimental Garden of RITC, Cianjur, West Java, from September up to November 2011. At both experimental sites, the experimentations was designed in a randomized complete block (RCB) withÂ six treatments, replicated four times. Treatments tested were formulation of marigold extract 10% and 15%, each at doses of 0.5 and 1.0 l/ha, standard chemical insecticide, and control. All treatments were applied by spraying, using one litre-hand sprayer at green house, and using knapsack sprayer with spraying volume 300 l/ha in feld. At green house, parameter observed was mortality of E. flavescens. Mortality at formulation of marigold extract 15% (92%, in average) was higher than at formulation of marigold extract 10% (76%, in average) while in field were attack intensity of E. flavescens, tea shoot production, and phytotoxicity. Results showed that at green house, formulation of marigold extract 10% and 15% at doses of 0.5 dan 1.0 l/ha were effective to result in high mortality of E. flavescens. While in field the formulations at both doses were effective to suppress attack intensity of E. flavescens. However, the effectiveness of 1.0 l/ha doses was higher than 0.5 l/ha doses, which comparable with standard chemical insectiside treatment. The formulations at both doses indirectly also could increase shoot production, and did not cause phytotoxicityÂ on tea leaves/shoots.

The application of technology portable fertigation system in the dry month in tea plantation Rahardjo, Pudjo; Wulansari, Restu; Pranoto, Eko
Jurnal Penelitian Teh dan Kina Vol 18, No 1 (2015)
Publisher : Research Institute for Tea and Cinchona

The research aims at providing multiÂfunction both irrigation and fertilizer appliÂcations (fertigation) and calculates the producÂtion of shoots and evaluated plant health during dry season. This research was carried out on Gambung Research Station using clone GMB7. Randomized block design was used in this study with six treatments and four replications. The treatments i.e. a. control (without irrigation, without fertilization); b. without irrigation, ferÂtiÂlization through the soil; c. irrigation 7 mm/day every 3 days (without fertilization); d. irrigation 7 mm/day every 6 days (without fertilization); e. fertigation 7 mm/day every 3 days; and f. fertigation 7 mm/day every 6 days. Observations were made from September-October 2014 with 4 times of plucking. All treatments were significantly different on the yield, number of both pecco and banji. The fertigation treatment using 21 mm of water (7 mm/day every 3 days) showed the highest shoot production of 15,56%. The highest number of pecco shoots and ratio of the number pecco/number of banji in treatment using 21 mm of water (7 mm/day every 3 days) of 32,25%. The highest number of banji found in the control treatment (without irrigation without fertilization) was 74,94%. From this research it can be concluded that the fertigation treatment can give good impact to production maintain and plant health in the dry season.

Antioxidant activity, phenol total, and flavonoid total of green tea (Camellia sinensis (L.) O. Kuntze) from three West Java tea estate Kusmiyati, Mimin; Sudaryat, Yayat; Lutfiah, Isti Agnia; Rustamsyah, Ardi; Rohdiana, Dadan
Jurnal Penelitian Teh dan Kina Vol 18, No 2 (2015)
Publisher : Research Institute for Tea and Cinchona

Green tea has bioactive component, it is polyphenol which has strong antioxidant. As the largest component of polyphenol, flavonoid is very effective as an antioxidant. The purpose of this study was to determine antioxidant activity, phenol total and flavonoid total in green tea from three different estates, they were Cikajang Kab. Garut, Taraju Kab. Tasikmalaya, and Ciwidey Kab. Bandung. The results of this study show that seven samples have good antioxidant activity, but green tea which came from Cikajang (P-IRT No. 810320501698) has the highest IC50 grade it was 21,44 Î¼g/ml. Beside that samples from Cikajang (P-IRT No. 810320501698) has highest total phenol content it was 334,68Â± SD 0,89/100 g samplesÂ and also has the highest total flavonoid it was 0,34 mg Kuersetin/g samples Â± SD 0,21. On the contrary, green tea which has the lowest IC50 grade came from Taraju, the grade was 28,03 Î¼g/ml, the samples has the lowest total phenol content it was 208,91Â± SD 4,47 mgGAE/100 g, and also has the lowest total flavonoid it was 0,207 mg Kuersetin/g samples Â± SD 0,00.

The influence of El-Nino on microclimate change and soil water content in Gambung tea plantation Rezamela, Erdiansyah; Dalimoenthe, Salwa Lubnan
Jurnal Penelitian Teh dan Kina Vol 19, No 1 (2016)
Publisher : Research Institute for Tea and Cinchona

The very strong intensity of 2015 El-Nino affected on microclimate change and soil water content of Gambung Tea Plantation. The observation results indicated that in the year of 2015 Gambung was experienced four dry months (with rainfall <60 mm), with maximum air temperature 30,8ÂºC and air humidity dropped to 65%. These condition were not suitable for tea plant to grow well, which normally required two dry months at minimum (rainfall < 60 mm), air temperature of 18â25ÂºC, and with relative humidity of above 70%. The affected areas by drought were present in a map (see Figure 3 of the text). About 65% of the total blocks (north section about 80% and south section about 50%) of Gambung tea plantation were affected by drought. The worst affected were blocks A6 (north section) and B8 (south section). In these blocks, about 54.70% of plant were in normal growth condition; 14.65% were in temporary and permanent wilting status; 25.34% in the state of dropping their leaves; 5.19% of the plants with dried buds twigs, and 0.12% with dried twigs and dried old branches. The soil water content (at 10 cm depth) in these blocks dropped to 7.02% and 4.99% from normally required at minimum 30%.

The making of transparent soap based on olive oil with the addition of white tea extract Widyasanti, Asri; Rohani, Jayanti Mega
Jurnal Penelitian Teh dan Kina Vol 20, No 1 (2017)
Publisher : Research Institute for Tea and Cinchona

Tea is a popular drink in the world. Types of tea which is rarely used is white tea. Besides consumed as a beverage, white tea can also be used in extracted form. White tea extract contains polyphenols compound, particularly catechins that can be used as an antibacterial. One of white tea extract uses that can be added to production of olive oil transparent soap based. This study aimed to determine the process of transparent soap production, looking for the best concentration of white tea extract, determine the characteristic and quality of transparent soap, and look for the extend of inhibition zone of Staphylococcus aureus in transparent soap. The treatments given in this research were the concentration of white tea extract 1% (w / v) with the addition of A (control soap) = 0% (w / w), B = 0,5% (w / w), C = 1,0% (w / w), and D = 1,5% (w / w) of 300 grams of soap bases. Transparent soap characteristics observed were physical-chemical properties, antibacterial and organoleptic test. The analysis showed that all transparent soap baths complied the SNI 06-3532-1994 requirements of solid soap, except the water content and evaporated substance and the amount of fatty acids. The best result of this research was soap with treatment B (with 0,5% (w/w) extract addition), which was chosen based on organoleptic test (such as aroma, hardness and foam quantity) and Indonesian National Standard (SNI) qualities of solid soap with best result in unsaponified fraction test, hardness, and foam stability.

Preservation of fish using instant extract of green and black tea Nugraha, Tutun; Fernando, Anthony; Rahardjo, Pudjo
Jurnal Penelitian Teh dan Kina Vol 15, No 1 (2012)
Publisher : Research Institute for Tea and Cinchona

The use of illegal and hazardous preservative agents such as formalin by traditional fishermen and trader has become a problem in Indonesia. Â In this research, instant extract powder of green tea and black tea were used as natural preservatives for fish. Both substances are known for their anti-bacterial and anti-oxidative activities due to the presence of various types of polyphenols, particularly the catechin groups. The tea extract powder was produced Â by drying Â using a spray drying device. The two different tea extract powders were tested separately, and in combination. The tests were done by dipping pieces of fresh indian mackerel fish (Rastrelliger kanagurta), also known locally as kembung banjar, in the solution containing the tea extract. The microbial tests were done using total plate count (TPC) method. The result showed that instant green and black tea extracts was capable in suppressing bacterial growth in fish. When the two substances were mixed together, the preservation activities were found to be stronger than if they were used separately. In addition, histamine and total volatile base nitrogen (TVB-N) tests which are regularly used to test the freshness of fish also showed substantial improvement in the quality of the fish sample. The sensory tests also showed that the extracts were capable of improving the freshness of the fish sample.Â

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Contact Name
Fani Fauziah

Contact Email
fanif6@gmail.com

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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