scholarly journals Chemical and Sensory discrimination of coffee: Impacts of the planting altitude and fermentation

Author(s):  
Emanuele Catarina da Silva Oliveira ◽  
José Maria Rodrigues da Luz ◽  
Marina Gomes Castro ◽  
Paulo Roberto Filgueiras ◽  
Rogério Carvalho Guarçoni ◽  
...  

Abstract Edaphoclimatic conditions, planting altitudes, soil, the microbiome of plants and fruits, genotypes, and postharvest processing are variables that contribute to the chemical and sensory quality of the coffee. Thus, the objective of this study was to evaluate the impacts of planting altitude and fermentation of fruits on the chemical and sensory quality of the coffee using nuclear magnetic resonance (NMR) and linear discriminant analysis (LDA). Cherry coffees were harvested in 8 points of altitudes between 826 and 1078.08 meters. A completely randomized design with 8 planting altitudes, 5 fermentation processes, and 5 repetitions was performed. Lipids, trigonelline, citrate, and malate were the compounds that most contribute to the chemical discrimination of coffee in the altitudes below 969 m. While, in the high altitudes (> 1000 m), this discrimination was due to the HMF, quinic acid, caffeine, and formic acid and the global notes of coffee drink were higher than 80 points. In fermented coffee, the LDA of the chemical data indicates the formation of five clusters, showing how the compounds can suffer changes depending on the form of processing used in coffee. The best score was observed in samples of 1078.08 m and dry fermentation and only in 969 m was observed significant difference between spontaneous fermentation and induced fermentation. Thus, coffee sensory scores were dependent on planting and fermentation methods and NMR and LDA techniques proved to be important in chemical and sensory discrimination of coffees.

2020 ◽  
Vol 12 ◽  
Author(s):  
Donaldo Antônio Nunes Junior ◽  
Heder José D’Avila Lima ◽  
Jean Kaique Valentim ◽  
Laura Aline Zanelatto Souza ◽  
Nayara Emanoelle Matos e Silva ◽  
...  

The main objective of this research is to evaluate the inclusion of different natural pigment solutions in diets formulated with maize and sorghum solutions on the growth performance and egg quality of commercial laying hens created in hot climates. Throughout the conduction of this experiment, were used 252 laying hens of the Hisex Brow, in a completely randomized design, with six treatments, seven repetitions, and six birds per plot. The experimental diets were assigned with different energy sources and adding pigmentation solutions, diet 1 (corn), diet 2 (corn + annatto), diet 3 (corn + carrot), diet 4 (sorghum), diet 5 (sorghum + annatto), diet 6 (sorghum + Carrot).  Afterward, being evaluated the performance and quality of eggs. It was observed significant difference with reference t egg production, egg weight (g), gem weight (g), the weight of shell (g), albumin in weight (g), and gem coloration (tons) among the treatments. There was no difference in the parameters of performance and quality of eggs evaluated, only the variable yolk color had a significant effect between treatments. Replacing the energy source of the corn diet with sorghum in the diet of laying hens at peak production provides similar performance and egg quality, which can be a substitute for quality and efficiency. The use of annatto and carrots as a natural pigmentation promotes greater pigmentation of the egg yolks of laying Hisex Brown eggs and does not impair the performance of the birds.


2010 ◽  
Vol 1 (2) ◽  
pp. 79
Author(s):  
Michel Shoiti Tamura ◽  
Roselene Ferreira Oliveira ◽  
Simone Correia Molina ◽  
Edmar Clemente

<p>From harvest to consumption, fruit and vegetables suffer a series of mechanical damages which, depending on their sensitiveness, may cause damages that put their final quality at risk. This work had as its objective evaluate the post harvest quality of mechanically damaged &lsquo;Tahity&rsquo; acid limes. The experiment was carried out in a completely randomized design, with 3 repetitions and 7 fruits per treatment, mechanical damages were then evaluated by cutting and impacting in comparison to healthy fruits (control), and maintained for periods of 0, 3. 6, 9, 12, 15 and 18 days, thus obtaining a 3 x 7 factorial experiment. Analyses were made throughout the 18 days, so as to determine the total soluble solids content (expressed in &deg;Brix); titratable acidity (in g of citric acid. 100mL<sup>-1</sup>); ratio (relationsoluble solids and titratable acidity); vitamin C (expressed in mg of ascorbic acid 100mL<sup>-1</sup>) and pH. The results obtained showed that there was significant difference in the chemical parameters evaluated, mainly those submitted to damaging treatment.</p><p>&nbsp;</p><p>DOI: http://dx.doi.org/10.14685/rebrapa.v1i2.20</p>


Author(s):  
Dyah Wahyuni ◽  
Fitra Yosi ◽  
Gatot Muslim

Abstract  This research evaluated wuluh starfruit (Averrhoa bilimbi L) solution as a marinade on the sensory quality of goat meat. This research was designed using the Completely Randomized Design (CRD) which consisted of 4 treatments: 0, 30, 60, and 90% wuluh starfruit solution. The observed variables in this research were taste, color, aroma, texture, and acceptability. The data were analyzed using the Non-Parametric Kruskal-Wallis test. The results showed that the usage of wuluh starfruit solution up to 90% as a marinade for goat meat had an average score of taste, color, aroma, texture, and acceptability which are not significantly different (P>0.05) compared to the control. It means that the sensory quality of marinated meat was relatively similar to the control. It can be concluded that wuluh starfruit solution up to 90% concentration can be used as a marinade to preserve the sensory quality of goat meat. Keywords: Wuluh starfruit; Goat meat; Marinade;Sensory.   Abstrak  Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan larutan belimbing wuluh sebagai bahan marinasi terhadap kualitas sensoris daging kambing. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan: 0, 30, 60 dan 90% larutan belimbing wuluh. Peubah yang diamati dalam penelitian ini adalah rasa, warna, aroma, tekstur dan daya terima. Data dianalisa menggunakan uji hedonik Kruskal-Wallis. Hasil analisa data menunjukkan bahwa penggunaan larutan belimbing wuluh hingga 90% sebagai bahan marinasi daging kambing memiliki rerata skor rasa, warna, aroma, tekstur dan daya terima yang tidak berbeda nyata (P>0,05) dibandingkan kontrol. Artinya, daging yang dimarinasi memiliki kualitas sensoris yang relatif sama dengan kontrol. Berdasarkan hasil tersebut dapat disimpulkan bahwa larutan belimbing wuluh hingga 90% dapat digunakan sebagai bahan marinasi untuk mempertahankan kualitas sensoris daging kambing. Kata kunci : Belimbing wuluh; Daging kambing; Marinasi; Sensoris.


Author(s):  
S. K. Anil ◽  
Praveen Gidagiri ◽  
R. Hamsa ◽  
Praveen Jholgikar

The present investigation on Optimization of yeast level and duration for aerobic and anaerobic fermentationfor production of jack fruit (Artocarpus heterophllyus L.) wine was carried out in the department of Post Harvest Technology, Kittur Rani Channamma College of Horticulture (University of Horticultural Sciences, Bagalkot), Arabhavi, during the year 2010-2011. It consisting of different treatments viz T1 –20 g of yeast for 100 Kg of must+24 hrs aerobic and 7 days anaerobic fermentation, T2-30 g of yeast for 100 Kg of must+24 hrs aerobic and 7 days anaerobic fermentation, T3–20 g of yeast for 100 Kg of must+24 hrs aerobic and 14 days anaerobic fermentation, T4 –30 g of yeast for 100 Kg of must+24 hrs aerobic and 14 days anaerobic fermentation, T5 –20 g of yeast for 100 Kg of must+48 hrs aerobic and 7 days anaerobic fermentation, T6 –30 g of yeast for 100 Kg of must+48 hrs aerobic and 7 days anaerobic fermentation, T7 –20 g of yeast for 100 Kg of must+48 hrs aerobic and 14 days anaerobic fermentation and T8 –30 g of yeast for 100 Kg of must+48 hrs aerobic and 14 days anaerobic fermentation. The experiment was laid out in a completely randomized design with three replications. The main objective was to standardize the optimum yeast level and duration required for aerobic and anaerobic fermentation and also to study various biochemical and organoleptic quality of wine recorded at regular interval during the storage of wine. The highest TSS was maintained in treatment T1 (10.47) and T4 (10.47) in cold condition and in ambient condition T1 (10.43) followed by T2 (10.35) shows highest TSS. The pH value increases from 3.36 (fresh wine) to 3.89 (6 MAS in cold) and 3.84 (6 MAS in ambient) and acidity will decrease from 0.59 to 0.49 (Cold) and 0.52 (ambient). Alcohol content increase from 7.46 to 8.12 percent (Cold) and 8.04 (Ambient). Tannin per cent were showed non significant difference and decreasing trend can be seemed over period of aging, T8 (30 g of yeast + 48 hrs aerobic and 14 days of anaerobic fermentation) observe the highest per cent of tannins throughout the investigation.


Author(s):  
Nizar Ria ◽  
Dekie Rawung ◽  
Erny J. N. Nurali

AbstractThe objectives of this study were to analyze the composition and sensory quality of the crust pie made of composite flour of goroho and yellow sweet potato. This study was conducted in a completely randomized design with 4 different composition ratio of goroho plantain flour to yellow sweet potato flour, i.e., A (80% : 20%), B (70%: 30%), C (60%: 40%), and D (50% : 50%). The results of the study showed that the chemical composition of pie crust were in a range of 2.87% - 4.74% for moisture content, 2.66% - 2.72% for ash content, 32.10% - 32.95% for fat content, 5.90% - 6.06% for protein content, 3.76% - 4.77% for crude fiber, and 50.04% - 55.50% for carbohydrates content. The pie crust made from composite flour 50% goroho : 50% yellow sweet potato was the most preferred by panelists in terms of color, aroma, taste and texture with a value of 3.89 (like).Keywords: pie crust, composite flour, goroho plantain, sweet potato


Author(s):  
Hamdan Hamdan ◽  
Budianto Panjaitan ◽  
Amalia Sutriana ◽  
Dwinna Aliza ◽  
Erdiansyah Rahmi

The objective of this study was to evaluate the effect of storage time of epididymis at 5 oC on spermatozoa quality of Aceh local goat. This research was conducted at Reproduction Laboratory, FKH Unsyiah from May to June 2009. Nine epididymis from local goat at the age of 1.5-2.0 years were used in this study. The epididymis were collected from abattoir in Banda Aceh. The experimental design used in this study was completely randomized design with 3 treatments and 3 replications. Spermatozoa quality which consist of sperm concentration, motility, amount of life sperm, and sperm abnormality were examined after the collection of epididymis on day 0 (H-0), day 1 (H-1), and day 3 (H-3) post storage at 5 oC. Data were analyzed using one-way analyses of variance (ANOVA). The result showed that no significant difference (P0.05) seen in the spermatozoa quality after different storage time. The average of spermatozoa concentration on H-0, H-1, and H-3 were 318x107/ml, 282x107/ml, and 241x107/ml respectively. On the average, the percentage of spermatozoa motility on H-0, H-1, and H-3 were 82,27±2,75; 80,25±2,83; and 78,07±0,92%, respectively. Life spermatozoa observed on H-0, H-1, and H-3 were 82,29±2,71; 80,63±1,87; and 80,09±3,31%, respectively. Observation on spermatozoa abnormality showed that the average of spermatozoa abnormality on H-0, H-1, and H-3 were 7,23±0,27; 8,21±0,55; and 10,75±3,14%, respectively. It could be concluded that the spermatozoa quality were not affected by the storage time at temperature of 5 oC.


2018 ◽  
Vol 6 (01) ◽  
pp. 25-32
Author(s):  
Aju Tjatur Nugroho Krisnaningsih ◽  
Dyah Lestari Yulianti

Abstrak  Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi ekstrak buah nanas dan pepaya pada konsentrasi yang berbeda terhadap kualitas daging itik petelur afkir. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan konsentrasi kombinasi ekstrak nanas (N) dan papaya (P) sebagai perlakuan. Adapun perlakuan penelitiannya yaitu P0 (0%N, 0%P); (P1 25%N, 75%P); P2 (50%N, 50%P), and P3 (75%N, 25%P). Setiap perlakuan diulang 3 kali. Variabel dalam penelitian adalah kadar protein dan kadar lemak daging itik pedaging. Hasil penelitian menunjukkan perbedaan yang signifikan untuk konsentrasi kombinasi ekstrak buah nanas dan Abstract The purpose of this study was to determine the effect of a combination of pineapple and papaya fruit extracts at different concentrations on the quality of the meat of post-production laying ducks. The method used was a Completely Randomized Design (CRD) with a combination of pineapple extract (N) and papaya (P) as a treatment. The research treatment is P0 (0% N, 0% P); (P1 25% N, 75% P); P2 (50% N, 50% P), and P3 (75% N, 25% P). Each treatment was repeated 3 times. The variables in the study were protein content and fat content of broiler duck meat. The results showed a significant difference for the concentration of the combination of pineapple and papaya fruit extracts on protein content (P <0.01) with an average P0 (21.98%), P1 (17.40%), P2 (17.37%), P3 ( 17.62%) and fat content (P <0.01) with an average P0 (2.15%), P1 (3.75%), P2 (3.41%), P3 (3.54%). Based on the results it can be concluded that the best experiment is at 75% N 25% P.  


2019 ◽  
Vol 6 (1) ◽  
pp. 119
Author(s):  
Enike Dwi Kusumawati ◽  
Syam Rahadi ◽  
Sugeng Santoso ◽  
Dyah Lestari Yulianti

ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh lama thawing yang berbeda pada suhu 250C untuk mendapatkan kualitas spermatozoa semen beku sapi ongole yang optimal. Penelitian dilakukan di Laboratorium Fakultas Peternakan Universitas Kanjuruhan Malang. Metode Penelitian yang digunakan adalah metode percobaan dengan menggunakan Rancangan Acak Lengkap (RAL) Faktorial. Setiap perlakuan thawing diberikan ulangan sebanyak 10 sampel semen beku sapi ongole. Hasil penelitian menunjukkan bahwa perlakuan dengan lama thawing 7, 15, 30 detik pada suhu 25oC memberikan perbedaan pengaruh yang sangat nyata (p<0.01) pada motilitas, viabilitas dan abnormalitas spermatozoa semen beku sapi ongole. Motilitas tertinggi diperoleh pada perlakuan P3 dengan rata-rata sebesar 40,8%, viabilitas tertinggi diperoleh pada perlakuan P3 dengan rata-rata sebesar 82,39%, sedangkan abnormalitas terendah diperoleh pada perlakuan P3 dengan rata-rata sebesar 11,95%. Berdasarkan penelitian ini maka dapat disimpulkan bahwa thawing pada suhu 25oC dengan lama waktu 30 detik memberikan kualitas spermatozoa yang paling baik sehingga disarankan untuk melakukan thawing pada suhu 25oC dengan lama waktu 30 detik. Kata kunci: abnormalias, mortalitas, ongole, thawing, viabilitas ABSTRACT This study aims to determine the effect of different thawing time at 250C to get the sperm quality of frozen semen ongole bull. Research conducted at the Laboratory of Animal Husbandry Faculty Kanjuruhan University of Malang. The method of study by using Completely Randomized Design (CRD) factorial. Any treatment given repeated thawing of frozen samples of 10 times. The study show that treatment with time thawing 7 (P1), 15 (P2), 30 (P3) seconds at 25oC gives a very significant difference (P<0.01) on motility, viability and abnormalities of ongole Bull sperm. The highest motility and viability were obtained at P3 (40,8%) and (82,39%), while the lowest abnormalities obtained on P3 (11,95%). Based on this research it can be concluded that thawing at 25oC with 30 seconds to give the best quality sperm that is recommended for thawing. Keywords: abnormality, motility, ongole, thawing, viabilit


2018 ◽  
Vol 18 (4) ◽  
pp. 571
Author(s):  
Muhammad Rizal ◽  
Muhammad Riyadhi ◽  
Bambang Irawan ◽  
Anis Wahdi ◽  
Habibah Habibah ◽  
...  

The objective of this research was to examine the effectiveness of coconut water with various egg yolk concentrations in maintaining the viability of epididymal spermatozoa of crossbreed cattle preserved at 5oC. Five testis with epididymides of crossbreed cattle were obtained from slaughterhouse. Epididymal spermatozoa was collected by the combination of slicing, flushing and tissues pressure methods of cauda epididymides with saline solution (0.9% NaCl). Collected-spermatozoa was equally divided in volume into four tubes and diluted with lactose extender containing 20% egg yolk (control), 90% coconut water + 10% egg yolk (CWEY10), 85% coconut water + 15% egg yolk (CWEY15), and 80% coconut water + 20% egg yolk (CWEY20), repectively. Diluted-spermatozoa was stored in refrigerator at 5oC. Quality of dilutedspermatozoa including percentages of motile spermatozoa (MS), live spermatozoa (LS), spermatozoa with intact plasma membrane (IPM) were evaluated every day during four days of storage. Data were analyzed by using completely randomized design with four treatments and five replicates. Means were compared with significant difference test at 0.05 significant level. Results of this study showed that mean of spermatozoa concentration, percentage of MS, percentage of LS, percentage of spermatozoa abnormal, and percentage of IPM of crossbreed cattle fresh epididymal spermatozoa were 1,414 million cell/ml, 72%, 85%, 9%, and 90%, respectively. At day-4 of the storage, percentages of MS, LS, and IPM of control (43, 52.2, 59.2%) and CWEY20 (42, 52, 59%) were significantly (P<0.05) higher than CWEY10 (33, 45.4, 52.8%) and CWEY15 (37, 50, 54.6%). In conclusion, lactose and CWEY20 extenders could be maintaining the quality of epidydimal spermatozoa of crossbreed cattle for three days preservation at 5oC and two days for CWEY10 and CWEY15.


2020 ◽  
Vol 2 (2) ◽  
pp. 29-37
Author(s):  
Mohamad Ervandi ◽  
Widiastuti Ardiansya ◽  
Sandi Prahara

The purpose of this research was to determine the effect of chicken species on the quality and fertility of spermatozoa. Semen is collected from Kampung, Arab, and Bangkok chickens through a massage method. The semen obtained is collected in a test tube, then diluted with Ringer's Dextrose. Spermatozoa examination is carried out macroscopically and microscopically. There are eighteen (18) female leghorn chickens used to test the fertility of spermatozoa, through the process of hatching eggs in an incubator. The research design used a Completely Randomized Design (CRD), with three (3) treatments and six (6) replications. Data analysis using analysis of variance, if there are differences, continued with the Least Significant Difference test (LSD). The results showed that the fertility of Bangkok chicken spermatozoa was significant (P 0.01) compared to the sperm fertility of Arab chickens and Kampung chickens. The average fertility value of each cement is Kampung chicken: 68.88%, Arabic chicken: 71.32%, Bangkok chicken: 89.96%. The quality of Bangkok chicken semen is better than native chicken and Arabic chicken


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