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INDONESIA
Pelita Perkebunan
Published by Pusat Penelitian Kopi dan Kakao Indonesia
ISSN : 02150212     EISSN : 24069574     DOI : https://doi.org/10.22302/iccri.jur.pelitaperkebuna
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Pelita Perkebunan, Coffee and Cocoa Research Journal (CCRJ): ISSN:0215-0212 Since its establishment in 1911, Indonesian Coffee and Cocoa Research Institute (ICCRI) formerly Besoekisch Proefstation, had published its research findings through a journal call Mededelingen van het Besoekisch Proefstation. Between 1948-1981 the research institute was under the supervision of Bogor Research Institute for Estate Crops, and published its research findings through De Bergcultures which was later changed to Menara Perkebunan. Since the institute held the national mandate for coffee and cocoa commodities, and due to rapid increase in the research findings, ICCRI published its first issue of Pelita Perkebunanjournal in April 1985. Pelita Perkebunanis an international journal providing rapid publication of peer-reviewed articles concerned with coffee and cocoa commodities based on the aspects of agronomy, plant breeding, soil science, crop protection, postharvest technology and social economy. Papers dealing with result of original research on the above aspects are welcome, with no page charge. Pelita Perkebunan is managed by Indonesian Coffee and Cocoa Research Institute (ICCRI), which publish the research findings not only for coffee and cocoa but also other commodities relevant with coffee and cocoa, i.e. shade trees, intercrops and wind breakers.
Arjuna Subject : -
Articles 402 Documents
 2   3   4   5   6 
Development of Selection Criteria on Bean Weight Character of Cocoa (Theobroma cacaoL.) through Path Analysis Approach Indah Anita Sari; Agung Wahyu Susilo
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.10

Abstract

Path coefficient analysis is frequently used for development of selection criteria on various type of plants. Path analysis on this research was conducted to find the selection criteria of yield component which directly affect bean weight. In addition to the value of path analysis coefficient, genetic variation coefficient, heritability and the value of genetic progress were also studied. The study was conducted at the Indonesian Coffee and Cocoa Research Institute. The research used randomized complete block design consisting of 14 accession numbers and each consisting of three replications. Pod girth, pod length, pod weight, wet beans weight per pod, number of normal beans per pod, number of abnormal beans per pod, dry weight per normal bean, and shell content were observed. The results showed that the pod weight character had an important role in determining the dry weight of normal bean. The character had a positive genotype correlation coefficient values which was high and significantly different (r=0.46) for dry weight per normal bean, considerable direct influence (P=0.479), moderate of the genotype variation coefficient (9.6%), and high genetic progress (95.23). Character of wet bean weight per pod could also be used indirectly for the selection criteria for dry weight per normal bean based on genetic variation coefficient value (11.88%), genetic progress value (82.48), and direct effect on dry weight per normal bean had positive value (P=0.006). Key words: Selection criteria, dry weight per bean, path analysis,Theobroma cacaoL.
Effects of Alkali Concentration and Conching Temperature on Flavour, Hardness and Colour of Chocolate Misnawi Jati; Susijahadi .; Jinap Selamat; Teguh Wahyudi; Novrita Putriani
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 22 No 2 (2006)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v22i2.35

Abstract

Alkalization is an addition of alkali into cocoa mass to improve product quality in terms of flavour and colour appearance. Sodium bicarbonate and potassium bicarbonate are usual to be added into cocoa cotyledon prior to roasting. A study has been carried out to evaluate the effects of alkalization proceeded upon conching on chocolate sensory properties, hardness and colour. Re sponse Surface Methodology design at alkali concentrations of 1—15 g kg -1 and conching temperature of 40—80 oC have been used in the study. Parameters evaluated were sensory properties, particle size, hardness and colour. Results of the study showed that alkali concentration significantly influenced aroma, overall preference, particle size and hardness; meanwhile, conching temperature showed significant influence on aroma, taste, appearance, overall preference and texture of chocolate. Alkali concentration and conching temperature showed interactively influence on aroma and overall preference. A good quality of chocolate could be found at the alkali concentration of 8—15 g kg -1 and conching temperature of 74—80 oC. Key words: cocoa bean, chocolate, flavour, conching, alkalization, colour, particle size, texture.
Estimating the Volatility of Cocoa Price Return with ARCH and GARCH Models Lya Aklimawati; Teguh Wahyudi
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 2 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i2.61

Abstract

Dynamics of market changing as a result of market liberalization have an impact on agricultural commodities price fluctuation. High volatility on cocoa price movement reflect its price and market risk. Because of price and market uncertainty, the market players face some difficulties to make a decision in determining business development. This research was conducted to 1) understand the characteristics of cocoa price movement in cocoa futures trading, and 2)analyze cocoa price volatility using ARCH and GARCH type model. Research was carried out by direct observation on the pattern of cocoa price movement in the futures trading and volatility analysis based on secondary data. The data was derived from Intercontinental Exchange ( ICE) Futures U.S. Reports. The analysis result showed that GARCH is the best model to predict the value of average cocoa price return volatility, because it meets criteria of three diagnostic checking, which are ARCH-LM test, residual autocorrelation test and residual normality test. Based on the ARCH-LM test, GARCH (1,1)did not have heteroscedasticity, because p-value  2 (0.640139)and F-statistic (0.640449) were greater than 0.05. Results of residual autocorrelation test indicated that residual value of GARCH (1,1) was random, because the statistic value of Ljung-Box (LB)on the 36 th lag is smaller than the statistic value of  2. Whereas, residual normality test concluded the residual of GARCH (1,1) were normally distributed, because AR (29), MA (29), RESID (-1)^2, and GARCH (-1) were significant at 5% significance level. Increasing volatility value indicate high potential risk. Price risk can be reduced by managing financial instrument in futures trading such as forward and futures contract, and hedging. The research result also give an insight to the market player for decision making and determining time of hedging. Key words: Volatility, price, cocoa, GARCH, risk, futures trading
Development of Monitoring Technique for Cocoa Pod Borer(Conopomorpha cramerella Snell.) Endang Sulistyowati; Suryo Wardani; Endang Mufrihati
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 21 No 3 (2005)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v21i3.24

Abstract

Effectiveness and effiency of CPB control were influenced by the right time of control. To decided this methods, information about CPB infestation was needed. An experiment had been conducted to get a simple and accurate technique for CPB monitoring. The experiment was located in Tirawuta, a smallholder cocoa plantation in Kolaka district, South-East Sulawesi. The evaluated monitoring pods techniques using observing all ripe cocoa pod as standard method, i.e. pod colour changes as an indicator of CPB attack, observation on 100 pods during harvesting, moth trapping and observation on the presence of the holes caused by CPB. The collected data expressed as the percentage of CPB attack and compared with each other. Based on the Chi 2 value and time consumed for monitoring, it could be concluded that the observation of 100 attacked pods during harvesting was the most accurate technique closest to the standard method, with a lowest 2 value and not significantly different to standard method. On the contrary the visual observation on the pod colour showed the less accurate technique with  2 value of 242,25–335,33 followed by the bservation on the present of holes on the pod with  2 value of 243,45–282,87. Furthermore, monitoring technique by moth trapping could not be compared with the other techniques since their unit was unequal. However, no insect could be trapped during a night trapping using either chemical trapping or sticky trap. Development of sticky trap by variation in trap colour could be trapped of CPB moth during more than one week. Red trap was the most interesting (preferred) for the CPB followed by the yellow, white and blue ones. There was significant correlation between number of tree sample and the time needed for observation. Larger size of tree sample consumed a longer time for the observation, but in visual symptom and entry/exit hole observation methods, larger sample size did not significantly influence its accuracy. It’s concluded that both of monitoring technique were not a converge estimation. Key words : Cocoa, cocoa pod borer, Conopomorpha cramerella, Integrated Pest Management, monitoring technique.
Influence of Milling Process of Roasted Cocoa Beans on Size Distribution Change of Cocoa Cotyledon Sukrisno Widyotomo; Sri Mulato; Edi Suharyanto
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 23 No 1 (2007)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v23i1.51

Abstract

One of important steps in secondarycocoa process is deshelling cocoa beans roasted. The aim of deshelling is to enrich cotyledon cocoa surface area which affects to reduce energy and processing time with good quality of the chocolate product. The objective of this research is to study the influence of milling process on physical characteristic change of cocoa beans roasted such as size distribution change, geometrical diameter average, uniformity index, fineness modulus, and average dimension of cotyledoncocoa roasted. The Indonesian Coffee and Cocoa Research Institute has designed and tested deshelling of roasted cocoa beans which will be used in this research. Before deshelling process, C grade bulk cocoa beans has been roasted up to 2.5—3% water contents. The result showed that optimal milling process by rotary cutter type milling unit has good size distribution change, geometrical diameter average, uniformity index, fineness modulus, and average dimension on 500 rpm rotary speed and 2.8 m/s air flow. On optimal process condition, 74.5% of cocoa cotyledon roasted has diameter size between 2.0—4.75 mm, 2.116 mm average of geometrical diameter, 0.864 mm average dimension, 3.052 fineness modulus, and 80% as crude size particel-20% as temperate size particel on uniformity index. Therefore, more than 80% of cocoa cotyledon roasted has diameter size between 2.0—4.75 mm with 700—900 rpm rotary cutter speed. Average of geometric diameter was 1.65—2.19 mm, and the dimension average was 0.69—0.89 mm. Uniformity index was crude size particle up to 80—90%, and in temperate size particle10—20%. Fineness modulus value was 2.73—3.09. Key words: cocoa, milling, size distribution, roasted beans.
Effect of Price Determinants on World Cocoa Prices for Over the Last Three Decades: Error Correction Model (ECM) Approach Lya Aklimawati; Teguh Wahyudi
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.15

Abstract

High  volatility  cocoa  price  movement  is  consequenced  by  imbalancing between power demand and power supply in commodity market. World economy expectation and market  liberalization would lead to instability on cocoa prices in  the  international  commerce.  Dynamic  prices  moving  erratically  influence the benefit  of market players, particularly  producers. The aim of this research is  (1)  to  estimate  the  empirical  cocoa  prices  model  for  responding  market dynamics and (2) analyze short-term and long-term effect of price determinants variables  on cocoa prices.  This research  was  carried out by  analyzing  annualdata from 1980 to 2011, based on secondary data. Error correction mechanism (ECM)  approach was  used  to  estimate the  econometric  model  of  cocoa  price.The  estimation  results  indicated  that  cocoa  price  was  significantly  affected  by exchange rate IDR-USD, world gross domestic product,  world inflation, worldcocoa production, world cocoa consumption, world cocoa stock and Robusta prices at varied significance level from 1 - 10%. All of these variables have a long run equilibrium relationship. In long run effect, world gross domestic product, world  cocoa  consumption  and  world  cocoa  stock  were  elastic  (E  >1),  while other  variables  were  inelastic  (E  <1).  Variables  that  affecting  cocoa  pricesin  short  run  equilibrium  were  exchange  rate  IDR-USD,  world  gross  domestic product,  world  inflation,  world  cocoa  consumption  and  world  cocoa  stock. The  analysis  results  showed  that  world  gross  domestic  product,  world  cocoa consumption  and  world  cocoa  stock  were  elastic  (E  >1)  to  cocoa  prices  in short-term.  Whereas,  the  response  of  cocoa  prices  was  inelastic  to  change  of exchange rate IDR-USD and world inflation.Key words: Price determinants, cocoa, Error Correction Model, demand, supply, stock
Physical and Flavor Profiles of Arabica Coffee as Affected by Cherry Storage Before Pulping Yusianto .; Dwi Nugroho
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 2 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i2.7

Abstract

Harvesting and pulping process of coffee cherry in the same day is inaccesible. Storage of coffee cherry before pulping was carried out incorrectly. Some storage treatments before pulping of Arabica coffee cherry had been examined at Indonesian Coffee and Cocoa Research Institute using Arabica coffee cherries from Andungsari Experimental Garden, Bondowoso, East Java. Treatments of the experiment were method and period of cherry storage. Methods of coffee cherry storage were put in plastic sacks; immerse in water, without water replacement; and immerse in water with daily water replacement. Period of coffee cherry storage were 0, 1, 2, 3, 4, 5, 6, and 7 days. After storage treatments, the coffee cherries were pulped, fermented, washed, sundried, and dehulled. The experiment were carried out using randomized block design with three replications. Observation of coffee cherry during storage periods was done on the physical and temperature. Observation of the green coffee were done on the color dan bulk density. The green coffee were roasted at medium roast level for sensory analysis. Observation of roasting profile were out-turn, bulk density and pH of roasted coffee. Sensory analysis used Specialty Coffee Association of America method. Methods and period of cherry storage before pulping significanly influence on the cherry color, parchment color, green coffee color, and the flavor profile of Arabica coffee. Color of dry parchment changed to be red-brown becouse of cherry immersed in water for two days or more. In plastic sacks, Arabica coffee cherry may be stored only for two days, but underwater with or without water replacement, should be not more than five days. Green and sensory quality of Arabica coffee will be deteriorated after five days storage underwater. Coffee cherry storage immerse in water with daily replacing water may improve sensory quality of Arabica coffee.Key word: Arabica coffe, storage, pulping, flavor, physical perqutions 
Physical and Flavor Quality of Some Potential Varieties of Arabica Coffee in Several Interval Storage Periods Yusianto .; Retno Hulupi; Sulistyowati .; Surip Mawardi; Cahya Ismayadi
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 23 No 3 (2007)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v23i3.40

Abstract

Coffee storage was an active process, where the quality and flavor was depend on the origin, humidity, temperature, period, and ware house condition. The objective of this research was to know quality and flavor of some Arabica coffee varieties in interval of storage periods. The examined coffee varieties were BP 416 A, BP 430 A, BP 432 A, BP 509 A, BP 542 A, P 88, AS 1, S 795, and USDA-762. The treatments were recent harvest, one and two years stored green coffee. The green coffee were wet processed, sun dried, packed in polyethylene bags, one kg/pack and placed in some covered plastic boxes. The boxes were stored in ware house covered with wavy asbes roof and flat asbes ceiling. The green coffee was examined for its moisture content, color, and bulk density. The green coffee was roasted at medium level, and then examined for its the bulk density, yield, volume of swelling, and color of the roasted and powdered. The flavors examination was blind test method. The research showed that storage period significantly influenced the moisture content, color, and bulk density of green coffee, yield, volume of swelling, color of roasted coffee, color, and flavor profile of coffee powder. Those varieties tested showed significantly different on the moisture content, green coffee color, roasted coffee color, coffee powder color, and the profile flavor. The storage period influenced the green coffee color from greenish-gray to yellowish-red. The bulk density of green coffee decreased. The varieties that showed a little color changeduring storage, were BP 430 A,BP 416 A, AS 1, and S 795. One year of storage periode, the green coffee was still had the original color, but after two years, the original color had changed totally. The powder of recent harvest coffee was darker than that of one and two years storage. One year stored coffee had higher quality of aroma, intensity of aroma, quality of flavor, intensity of flavor, acidity, quality of after taste, intensity of after taste and preference, than the recent harvest and two years stored coffee. recent harvest had higher body, bitterness, and astringency, than that of one and two years stored coffee. The main off-flavor of recent harvest coffee was green and grassy, the one year stored coffee was harsh, woody, earthy, and sour, while the two years stored coffee was harsh, woody, earthy and moldy. The flavor change in the first year was higher than in the second year storage. The varieties, that had lowest change on flavor during storage, were BP 416 A, AS 1, P 88, BP 432 A and S 795. Key words: Coffee, Arabica, variety, clone, storage, quality, flavor, color.
Effect of Storage Temperature on Beauveria bassiana (Bals.) Vuill. Viability on Several Carriers Sri Sukamto
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 22 No 1 (2006)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v22i1.29

Abstract

One of the entomopatogenous fungus types commonly observed and showed potency as myco-insectiside is Beauveria bassiana(Bals.) Vuill.In order to support effectiveness and patogenous activity of B. bassiana, it is necessary to add a carrying agent that protects its spores from ultra violet ray. This study aims to investigate the effect of storage temperature on viability of B. Bassianaspores on the carrier material. The observation was carried out in the Laboratory of Plant Diseases, Indonesian Coffee and Cocoa Research Institute. The research was arranged in completely randomized design by three factors. The first factor was carrier (C), that consists of C1 = rice flour, C2 = maize flour and C3 = tapioca flour. The second factor was dosage (D), that consists of D1 = 1 g B. bassiana+ 1 g carrier; D2 = 1 g B. bassiana+ 5 g carrier and D3 = 1 g B. bassiana+ 10 g carrier. The third factor was temperature of the storage (T),that consists of T1 = 5oC; T2 = 23oC and T3 = 29oC. Viability of B. Bassiana spores was examined by observing development of 100 blastopores randomly and determined under light microscope with 400 times magnification. Observation was conducted in two replicates after the spores of B. bassiana were kept in the storage for 2, 4, 8 and 16 weeks. The result showed that by adding 1 g tapioca flour and temperature of storage of 5oC was potentiall in keeping viability of B. bassianaspores at least for 2 months. It was due to that tapioca flour gave better effect than rice and maize flours in keeping the storage and appropriate low temperature. Viability of B. bassianaspores decreased with increasing carrier dosage, temperature and duration of the storage. Whereas, storage at 5oC was found to be a better condition in keeping viability of dry pure B. bassianaspores longer than conditions of 23o and 29oC. Key word:Beauveria bassiana, temperature, viability,carrier.
Distribution of Soil Fertility of Smallholding Arabica Coffee Farms at Ijen-Raung Highland Areas Based on Altitude and Shade Trees Niken Puspita sari; Teguh Iman Santoso; Surip Mawardi
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 2 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i2.57

Abstract

Soil fertility is one of the most important factors influencing plant growth and productivity and it depends on the availability and quantity of nutrients in the soil. To study soil fertility status of an area, a study on soil chemistry and physics has to be conducted. The aim of this study was to investigate soil fertility status of smallholding Arabica coffee farms based on altitude and shades trees utilization. This research was carried out in April-August 2012 at IjenRaung highland areas by field survey. The results showed that the soil contained high content of organic carbon, nitrogen total, and C/N ratio; low available phosphorus; moderate to high cation exchange capacity, and low base cation of calcium, magnesium, and potassium; as well as slightly low pH. Higher altitude tended to have higher C organic and N total content, C/N ratio as well as pH. In contrast, in lower altitude tended to have lower available P, base saturation, as well as Ca, Mg, and K content. The dominant shade trees for coffee farming at the Ijen-Raung highland areas were suren (Toona sureni) , dadap (Erythrina sp.), kayumanis (Cinnamomum zeylanicum), pinus (Pinus mercusii), and kayu putih (Eucalyptus globulus). Different shade tree species resulted in different of soil fertility. Shade trees tended to influence cation exchange capacity from moderate to high, pH slightly acid, high base saturation, and low P available. Suren tree influenced better base cation than that of other trees but dadap tree was better in increasing soil fertility. Key word: Soil fertility, arabica coffee, andisol, shade trees, smallholding

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