STUDY OF TEMPERATURE AND ROASTING TIME ON THE QUALITY OF COCOA POWDER

2012 ◽  
Vol 2 (1) ◽  
pp. 41-52
Author(s):  
Kurnia Herlina Dewi ◽  
Meizul Zuki ◽  
Mulad Subagio
Keyword(s):  
Moisture Content ◽  
Microbial Contamination ◽  
Fat Content ◽  
Effect Of Temperature ◽  
Organoleptic Properties ◽  
Cocoa Powder ◽  
Physical Chemical ◽  
Roasting Temperature ◽  
Roasting Time

This study aims to determine the effect of temperature and roasting time the quality of cocoa powder by SNI, to determine the effect of roasting time (100oC and 115oC) for the quality of cocoa powder (physical, chemical, biological, and organoleptic) and to determine the effect of roasting time : 30, 60, 90 and 120 minutes of quality cocoa powder. Variables in this study to determine the quality of cocoa powder consists only of fat content, moisture content, pH, microbial contamination is the number of colonies of bacteria, fungi, Escherichia coli, refinement, and organoleptic properties of the cocoa powder. Results obtained show the temperature effect and long penyangraian penyangraian nibs cocoa powder quality results as a whole meet the quality standards. Effect of roasting temperature to produce quality cocoa powder on the observation variables (pH, moisture content, fat content) and different organoleptic properties, whereas the level of tenderness, microbial contamination, cocoa powder is no different. The effect of roasting time to produce quality cocoa powder on the observation variables (pH, moisture content, fat content) and different organoleptic properties. The level of tenderness and microbial contamination non-significant.

scholarly journals SIFAT FISIK-KIMIA DAN ORGANOLEPTIK BAWANG GORENG PALU PADA BERBAGAI FREKUENSI PEMAKAIAN MINYAK GORENG

2015 ◽  
Vol 34 (04) ◽  
pp. 390
Author(s):  
Nur Alam ◽  
Rostiati Rostiati ◽  
Muhardi Muhardi
Keyword(s):  
Fatty Acids ◽  
Moisture Content ◽  
Oil Content ◽  
Unsaturated Fatty Acids ◽  
Life Time ◽  
Organoleptic Properties ◽  
Cooking Oil ◽  
Physical Chemical ◽  
Oil Utilization

The objectives of the study were to determine the physical-chemical and organoleptic properties of Palu fried onions at the varying utilization frequency of cooking oil, i.e. F0 : fresh oil , F1 : 1 time of using , F2 : 2 times of using , F3 : 3 times of using , F4 : 4 times of using , F5 : 5 times of using and F6 : 6 times of using , the each level was replicatedthree times. The frequency of cooking oil utilization was significantly affected to decreasing color, texture, moisture content, oil content and panelist preference level on the crispness of Palu fried onions as well as increasing oxidation rate of unsaturated fatty acids at the cooking oil. Physical - chemical and organoleptic quality of Palu fried onions wereobtained of the best fresh frying utilization cooking oil, 1, 2, and 3 times of using cooking oil , respectively. The use of cooking oil more than 3 times oxidized free fatty acids, so it is less feasible to use based on the life time and health aspects of fried onions.Keywords: Fried onion, physical-chemical and organoleptic properties, frequency of utilization cooking oil. ABSTRAKTelah dilakukan penelitian untuk mengetahui sifat fisik-kimia dan organanoleptik bawang goreng Palu yang digoreng pada berbagai taraf frekuensi pemakaian minyak goreng yaitu F0: minyak segar, F1 : 1 kali pemakaian, F : 2 kali pemakaian, F 3 : 3 kali pemakaian, F4 : 4 kali pemakaian, F 5 : 5 kali pemakaian dan F : 6 kali pemakaian, setiap tarafdiulang tiga kali. Frekuensi pemakaian minyak goreng pengaruhnya sangat nyata menurunkan warna, tekstur, kadar air, minyak dan tingkat kesukaan panelis terhadap kerenyahan bawang goreng Palu serta meningkatkan laju oksidasi asam lemak tidak jenuh  pada minyak goreng. Mutu fisik-kimia dan organoleptik bawang goreng Palu secara berturut-turut terbaik diperoleh dari penggorengan menggunakan minyak goreng segar, 1, 2 dan 3 kali pemakaian. Pemakaian minyak goreng > 3 kali, asam lemak bebas telah teroksidasi sehingga kurang layak untuk digunakan jika ditinjau dari aspek daya tahan simpan bawang goreng dan kesehatan.Kata kunci: Bawang goreng, sifat fisik-kimia dan organoleptik, frekuensi pemakaian minyak goreng

scholarly journals Kinetics of Drying and Physical-Chemical Quality of Peach cv. Hubimel

2019 ◽  
Vol 11 (16) ◽  
pp. 223
Author(s):  
Newton C. Santos ◽  
Sâmela L. Barros ◽  
Shênia S. Monteiro ◽  
Semirames do N. Silva ◽  
Victor H. de A. Ribeiro ◽  
...  
Keyword(s):  
Experimental Data ◽  
Mathematical Models ◽  
Effect Of Temperature ◽  
Initial Time ◽  
High Water Content ◽  
Chemical Quality ◽  
Drying Time ◽  
Physical Chemical ◽  
Kinetics Of

The objective of this study was to perform the kinetics of peach drying and to adjust the experimental data obtained to empirical and diffusive mathematical models to evaluate the effect of temperature on the physical-chemical quality of the final product. The drying experiments were performed in an air circulation dryer with a velocity of 1.5 m s-1, the drying kinetics were performed at temperatures of 60, 70 and 80 °C. Among the mathematical models applied, the Page model was the one that best fit the experimental data, because it presents greater efficiency in the description of the drying process. The decrease in the drying rate from the initial time to the end of the process was observed, increasing the temperature of the air caused a reduction in the drying time. It was verified through the analytical solution of the diffusion equation with infinite wall geometry that the increase of the drying temperature caused the increase of the diffusivity and convective coefficient of heat transfer. Through the Biot number, it can be stated that the first-type boundary condition would also describe the process satisfactorily. The fresh peach slices present high water content and water activity and the drying effect caused significant differences in all physical-chemical parameters analyzed.

scholarly journals Effects of Fruit Maturity, Bean Fermentation and Roasting Time on Physico-Chemical Characters of Robusta Coffee

2017 ◽  
Vol 4 (3) ◽  
pp. 163
Author(s):  
Elsera Br Tarigan ◽  
Juniaty Towaha
Keyword(s):  
Moisture Content ◽  
Flavor Quality ◽  
Maturity Level ◽  
Fermentation Time ◽  
Robusta Coffee ◽  
Physico Chemical ◽  
Fruit Maturity ◽  
Foreign Materials ◽  
Roasting Time

<em>Robusta coffee is the most widely cultivated coffee in Indonesia. However, flavor quality of coffee is low due to improper harvesting and postharvest handling by farmers. Flavor quality mostly determined by fruit maturity level, fermentation and roasting time. The research aimed to investigate the effect of fruit maturity level, fermentation and roasting time on the physico-chemical characteristics of Robusta coffee. The research was conducted at Indonesian Industrial and Beverage Crops Research Institute (IIBCRI), from May to July 2017, used a completely ranndomized block design with 3 factors. The first factor was fruit maturity level (red and reddish yellow), second factor was bean fermentation (24 and 36 hours) and the third factor was roasting time (10 and 13 minutes). Physical quality covered percentage of live insects, moisture content, foreign materials and amount of defective beans. Chemical quality covered moisture content, ash, fat, protein, caffeine and acidity. The results showed that physical quality of fermented beans i.e. moisture content and amount of defective beans were affected by fruit maturity level and fermentation time, while foreign materials is affected by the interaction between these two factors. Chemical quality of coffee i.e. fat and caffeine content were affected by the interaction between fruit maturity level, and fermentation and roasting time. Water and protein content were affected by interaction between fruit maturity level and fermentation time, and interaction between fruit maturity level and roasting time. The ash content is affected by the roasting time, whereas pH is affected by fermentation time and roasting time.</em>

The Effect of Temperature and Duration Roasting of the Physical Characteristics of Arabica Coffee

2019 ◽  
Vol 967 ◽  
pp. 113-117
Author(s):  
Bondaris Palungan Musa ◽  
Iradat Rapa Charnia ◽  
Salu Salma
Keyword(s):  
Moisture Content ◽  
Average Length ◽  
Physical Characteristics ◽  
Effect Of Temperature ◽  
Average Moisture Content ◽  
Coffee Bean ◽  
Measuring Device ◽  
Arabica Coffee ◽  
Coffee Beans ◽  
Roasting Time

This study aims to determine the effect of temperature and roasting time on changes in physical characteristics of arabica coffee beans. Rotary type mechanical coffee roaster equipment equipped with a digital temperature measuring device to measure the roasting temperature. The heat source used is from the gas stove with the inner surface temperature of the coffee bean roaster cinder being kept constant. Arabica dry coffee as much as 500 grams with 14 % moisture content is put into the roasting device which has been heated at the desired temperature. The roasting is done by repetition twice for each temperature which is 165 °C, 175 °C, 185 °C and 195 °C with variations in the average length of time ie 35 minutes, 29 minutes, 25 minutes and 23 minutes. The results showed that the temperature and roasting time had an effect on the physical characteristics of the coffee beans, especially the very real color changes and also the changes in the average moisture content of coffee beans were 1.82 %, 1.43 %, 1.12 % respectively. and 0.94 %. Keywords: Arabica coffee, temperature, roasting time, physical characteristics

scholarly journals KARAKTERISASI FISIKOKIMIA IKAN BAGE (MAKANAN TRADISIONAL SUMBAWA) MENGGUNAKAN OVEN PENGERING

2021 ◽  
Vol 5 (1) ◽  
pp. 34-39
Author(s):  
Rhestu Isworo ◽  
Anni Nuraisyah
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Water Content ◽  
Fat Content ◽  
Average Moisture Content ◽  
Drying Process

Lemuru production in Sumbawa has increased and is one of the processed productsthe famous one is bage fish. This bage fish is processed by a process of salting andpickling, then drying and frying. Request from the Sumbawa peopleThere are already many who want to bring this typical bage fish souvenir from the region. Bytherefore in this study a controlled drying process was carried out usingoven, and is expected to be a solution to improve the quality of bage fishphysicochemical and microbiological. The results showed that fresh lemuru hadthe average moisture content was 86%, protein content was 19.8%, fat content was 6.1%. Water contentThe highest bage fish was found in treatment with a temperature of 50 ° C for 2 hours (56.33%)while the lowest water content is found in 4 hours drying with a temperature of 60 ° C(28.41%). The highest TPC test value was obtained in bage fish drying at 50oCfor 2 hours, which is 21000 CFU / gr (2.1 x 104 CFU / gr).

scholarly journals Pengaruh Jenis Ikan dan Metode Pemasakan terhadap Mutu Abon Ikan

2018 ◽  
Vol 7 (2) ◽  
pp. 138-147
Author(s):  
Chairil - Anwar
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Fish Species ◽  
Fat Content ◽  
Ash Content ◽  
Fish Processing ◽  
Cooking Method ◽  
Fish Meat ◽  
Good Taste

Fish is one source of animal protein that is widely consumed by society, is easy to get, and the price is cheap. But fish quickly experience the process of decay. Therefore, fish preservation should be known to all levels of society. One of the products of fish processing through the process of preservation is abon. Abon fish is a type of preserved food made from fish that are seasoned, processed by boiling, frying and pressing or separating oil. The resulting product has a soft shape, good taste, distinctive smell, and has a long-lasting power. This study aims to examine the effect of fish species and the method of cooking fish meat is the steaming and boiling treatment of the quality of fish produced abon. The results showed that fish species had a significant effect (P ? 0,01) on protein content, moisture content, fat content, ash content and color organoleptic value, and not significant (P> 0,05) to yield, the organoleptic value of texture, aroma, and flavor. The method of cooking fish meat was very significant (P ? 0,01) to protein content, fat content and not significant (P> 0,05) to yield, water content, ash content, the organoleptic value of texture, aroma, color, and flavor. The interaction between fish species and cooking method of fish meat had no significant effect (P> 0,05) on all parameters except on yield of abon fish produced.

scholarly journals Effects of leavening agents in batter system on quality of deep-fried chicken breast meat

Food Research ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 327-334
Author(s):  
Rozzamri Ashari ◽  
Atiqah-Izyannie A.M. ◽  
Mat Yusoff M. ◽  
Ismail Fitry Mohamed Rashedi
Keyword(s):  
Moisture Content ◽  
Meat Products ◽  
Fat Content ◽  
Chicken Meat ◽  
Chicken Breast ◽  
Breast Meat ◽  
High Moisture ◽  
Overall Acceptability ◽  
Chicken Breast Meat

The crispiness is an important parameter of battered chicken meat products and could be improved by adding leavening agents such as baking powder and dried yeast. This work was aimed to study the effect of different leavening agents added on the quality characteristics of battered chicken meat. Chicken breast meat strips were dipped into batters using different type of leavening agent; control (without a leavening agent); 4% baking powder (1), 4% dried yeast (2) and 2% baking powder + 2% dried yeast (3). The batter was kept in room temperature (RT) and cold temperature (CT) for one hour after coating. Moisture content, fat content, the viscosity of batter formulation, color, texture and sensory of fried battered chicken meat strips were evaluated. Moisture contents of RT3 and CT3 were significantly higher compared to other treatments while the fat content and viscosity of RT3 and CT3 were among the lowest. The RT2 and CT2 resulted in the lightest color. Compared to control samples, the addition of baking powder and yeast increased crispiness (fracturability and hardness) which was higher when used in combination than alone. Sensory evaluation of quality attributes showed crispiness and overall acceptability for RT3 and CT3 were among the highest. From the experiment, formulation 3 displayed the best effect of the leavening agents (a combination of baking powder and dried yeast) in batter system which produced lower fat, high moisture content, and crispier deep-fried chicken breast meat.

scholarly journals EFFECT OF GREENLEAF QUALITY AND MOISTURE CONTENT ON PHYSICAL AND ORGANOLEPTIC OF THE CTC (Crushing Tearing Curling) TEA

2016 ◽  
Vol 6 (1) ◽  
pp. 42-50
Author(s):  
Hafiz Thanoza ◽  
Devi Silsia ◽  
Zulman Efendi
Keyword(s):  
Quality Control ◽  
Moisture Content ◽  
Water Content ◽  
Black Tea ◽  
Processing Quality ◽  
Organoleptic Properties ◽  
Real Effect ◽  
Medium Quality

PTPN VII (Persero) Pagaralam Business Unitstarted developing the processing of black tea (CTC). Only after several times the processing quality CTC teas produced unsatisfactory. The Company continues to optimize the performance ofthe processingand quality control of CTC tea. This study aims to determine the effect of the quality of shootsandwilting percentage of the physical and organoleptic properties of CTC tea. This research was conducted in PTPN VII (Persero) Act Pagaralam. The results showed that all of the top quality withvalue range 62% to 70% and the percentage of wilted 65% to 72% no real effect on the physical and organoleptic properties. The water content and density of CTC tea has fulfilled SNI and enterprise standards. CTC tea produced medium quality (Fair made).

scholarly journals Nutritional quality of commercial butters

2021 ◽  
Vol 24 ◽  
Author(s):  
Maritiele Naissinger da Silva ◽  
Bruna Lago Tagliapietra ◽  
Franciele Pozzebon Pivetta ◽  
Vinicius do Amaral Flores ◽  
Neila Silvia Pereira dos Santos Richards
Keyword(s):  
Nutritional Quality ◽  
Fat Content ◽  
Chemical Difference ◽  
Dry Extract ◽  
Brazilian Legislation ◽  
Physical Chemical ◽  
Significant Difference ◽  
Regional Influence

Abstract The consumption and consequent production of butter has increased considerably in recent years. In order to know the butters sold in Brazil, the study aimed to analyze butters of Brazilian, French, Italian and Argentine origin. The samples were analyzed for fat content, moisture, Defatted Dry Extract (DDE), and total acidity for comparison with Brazilian legislation. The levels of chlorides, protein, ash, total dry extract, water activity, color and determination of the lipid profile were also determined. In all analyses, there was a statistically significant difference between the samples. Some samples showed disagreement with the quality requirements recommended in Brazilian legislation for commercialization. Indeed, 10 samples did not present the minimum fat content required, varying from 68.53% to 77.31% in butters with salt and from 71.64% to 81.72% in those without salt. Eight samples presented humidity levels above the legal recommendations, varying from 17.05% to 20.28%. All products were in agreement with acidity levels. The predominant fatty acids in all samples were myristic acid (C14: 0), palmitic acid (C16: 0), stearic acid (C18: 0) and oleic acid (C18: 1n9). The regional influence, breed and handling of the animals and season of the year in which the milk was obtained for butter production, were suggested to be the main reason for the physical-chemical difference found between the samples.

scholarly journals Optimization of Soursop (Annona muricata L.) Puree Concentration and Margarine on Quality of Muffins

2021 ◽  
Vol 10 (1) ◽  
pp. 12-24
Author(s):  
Lintang Ayu Nisa Trifany ◽  
◽  
Erni Sofia Murtini ◽  
Keyword(s):  
Moisture Content ◽  
Pore Size ◽  
Content Volume ◽  
Fat Content ◽  
Fiber Content ◽  
Treatment Results ◽  
High Fiber ◽  
Two Factors ◽  
Central Composite

Abstract Reducing the fat used in muffin production is necessary to produce muffins with low-fat content without changing physical characteristics. This reduction can be achieved by adding ingredients with high fiber content, such as soursop. This study aims to obtain the optimum concentration of soursop puree and margarine to produce muffins with the best texture, pore size, moisture content, and lowest fat content. The method used in this study is the Response Surface Methodology with the Central Composite Design using two factors, the concentration of soursop puree and margarine. The optimum treatment results obtained were the concentration of 16.159% soursop puree and 27.391% margarine with a hardness response of 3.390 ± 0.144 N, a pore size of 0.529 ± 0.046 mm2, a fat content of 8.302 ± 0.328%, and moisture content of 33.269 ± 0.397%. The optimum muffins have fat content, fiber content, carbohydrate content, hardness, pore size, reddish, yellowish, and taste attributes that are significantly different from control muffins. In contrast moisture content, ash content, protein content, volume expansion, baking loss, density, brightness, attributes of color, aroma, texture, pores, and overall were not significantly different from the control muffins. Keywords: margarine, muffin, optimization, soursop puree

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