scholarly journals The Variance of Strong Acid and Long Time Soaking Solutions on Quality of pH and Protein Gelatin of Sheep Skin

2017 ◽  
Vol 1 (2) ◽  
pp. 88
Author(s):  
Muhamad Hasdar ◽  
Yuniarti Dewi Rahmawati

This study aims to determine the quality of pH and sheep skin gelatin protein that is hydrolyzed using strong acid. The main ingredient of this research is sheep skin originated from Brebes Regency which is 1 - 2 years old. The research method used Randomized Completely Randomized Design (RAL) 2 x 3 factorial pattern where the first factor is soaking material (HCl 2% v / v and H2SO4 2% v / v) and second factor is the duration of immersion (2 hours, 3 hours and 4 hour), then continued with the real difference test using Duncan Multiple Range Test (DMRT). The test results showed sheep skin gelatin value that is pH 3,52 - 3,85 and protein 88,80 - 90,47%. HCl 2% ability to hydrolyze sheep skin collagen is better than 2% H2SO4. Highest pH and protein values occur at 4 hours of soaking time.

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Muhamad Hasdar ◽  
Wadli Wadli ◽  
Daryono Daryono

Local resources from Brebes Regency that have not been maximized properly are sheep skin. Brebes sheep skin can be converted into gelatin. This study aims to determine the quality of the yield and gelatin protein of sheep skin hydrolyzed using weak acids. The main ingredient of this research is sheep skin from Brebes Regency, which is 1-2 years old. The research method uses a completely randomized design (CRD) 2 x 3 factorial pattern where the first factor is the soaking material (CH3COOH 2% v / v and C6H8O7 2% v / v) and the second factor is the immersion time (2 hours, 3 hours and 4 hour), then proceed with the Real Difference test using the Duncan Multiple Range Test (DMRT). The yield measurement results showed the percentage of sheep skin gelatin is 10,12-10,77%, and the measurement of sheep skin gelatin protein showed a percentage of 70,96-72,87%. The ability of CH3COOH 2% in hydrolyzing sheep skin collagen is better than C6H8O7 2%. The highest percentage of yield and protein is at 4 hours soaking time for each type of solution.Keywords: Gelatin, Low Acid, protein, sheep skin, rendement


Author(s):  
Anita Mustika Ibrahim ◽  
Harapin Hafid ◽  
Ali Bain

Skin crackers are snacks which made from cattle skin. In order to get a good quality of skin crackers, the immersion process is carried out in a mixture of whiting solution and pineapple skin extract. This study aimed to evaluate the organoleptic characteristics of cow skin crackers with different types of skin and soaking time. The material used in this study is cow leather, whiting and pineapple skin. The method used is a completely randomized design factorial pattern with 3 x 3 and 4 times repetition. Factor A is the type of skin part (head, foot and neck) and factor B is difference of immersion time (24, 48, 72 and 96 hours). Research variables included color, aroma, taste, joy, crispness and acceptance of the panelists. The data obtained were analyzed using SPSS 16.0 and the smallest real difference test (LSD). The results showed that the interaction between the type of skin and immersion time did not significantly influence (P> 0.05) on color, aroma, taste, crispness, panelist acceptance and preference. Independent skin immersion time significantly influence (P <0.05) on color, aroma, taste, crispness, panelist acceptance and preference. The best treatment is obtained at 96 hours of immersion time.


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


2020 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Fitriani Sali ◽  
Asnani Asnani ◽  
Suwarjoyowirayatno Suwarjoyowirayatno

ABSTRACT         This study aims to determine the chemical quality of horse coarse nuggets, with tapioca and carrot flour substitution (Discuss carota L). This study used a complete randomized design (CRD) consisting of four treatments N1 = 50% barracuda fish meat : tapioca flour 50% : carrot flour 0%.,  N2 = 50% barracuda fish meat : tapioca flour 45% : carrot flour 5%., N3 = 50% barracuda fish meat : tapioca flour 40% : carrot flour 10%., N4 = 50% barracuda fish meat : tapioca flour 35% : carrot flour 15% flour each treatment was repeated three times. Test results were analyzed using analysis of variance (ANOVA) analysis of variance if there were real differences, a multiple range test (DMRT) was performed with a confidence level of 95%. The results showed that the substitution of tapioca and carrot flour had a very significant effect on the highest value of color 8.1, aroma 7.4, texture 7.1. Chemical test of fish nugget with tapioca and carrot flour substitution are water content 35.74%, ash content 4.63%, protein content 15.83%, fat content 11.37%, crude fiber 6.26% and antioxidant 242.15 g/mL. Keywords: Barracuda fish, carrot flour, chemical test, nuggets, organoleptic test, tapioca flour.ABSTRAKPenelitian ini bertujuan untuk mengetahui mutu kimia nugget ikan barakuda dengan subtitusi tepung  tapioka dan tepung wortel. Penelitian ini menggunakan rancangan acak lengkap RAL yang terdiri dari empat perlakuan N1 = daging ikan barakuda 50% : tepung tapioka 50% : tepung wortel 0%., N2 = daging ikan barakuda 50% : tepung tapioka 45% : tepung wortel 5%., N3 = daging ikan barakuda 50% : tepung tapioka 40% : tepung wortel 10%., N4 = daging ikan barakuda 50% : tepung tapioka 35% : tepung wortel 15% masing- masing perlakuan diulang sebanyak tiga kali ulangan. Data hasil pengujian dianalisis menggunakan analisis ragam (ANOVA) analisis of variens jika terdapat  perbedaan nyata dilakukan uji Duncan multiple rangge test (DMRT) dengan tingkat kepercayaan 95%. Hasil penelitian menunjukan bahwa subtitusi tepung tapioka dan tepung wortel (Daucus carota L) berpengaruh sangat nyata terhadap nilai tertinggi warna 8.1, aroma 7.4, tekstur 7.1, pada uji kimia nugget ikan dengan subtitusi tepung tapioka dan wortel kadar air 35.74%, kadar abu 4.63%, kadar protein 15.83%, kadar lemak 11.37%, serat kasar 6.26% dan antioksidan 242.15 g/mL.Kata kunci: Ikan barakuda, nugget, tepung tapioka, tepung wortel, uji kimia, uji organoleptik.


2018 ◽  
Vol 21 (1) ◽  
pp. 33
Author(s):  
C I Sutrisno ◽  
B.W.H.E Prasetyono ◽  
E Ali

<p>Experiment was carried out in two stages. The first was aimed to study the viabilty of microbe of dried-oven manure and dried-sunshine manure. Completely Randomized Design (CDR), 3 treatments and 4 replications, was used throughout the experiment with content of manure microbe as the parameters. The research result indicates that the way of draining degraded the viability of microbia manure. Manure microbia’s viability of dried-oven manure was better than that of the dried-sunshine manure.</p>The second was aimed to investigate the effect of dried-manure as starter with different time of fermentation on the quality of fermented sugar cane. Completely Randomized Design, factorial pattern 3x3 by 3 replications was employed during the experiment. The first factor was starter levels (A): 0, 15 and 30%, while the second was different time of fermentation (W): 0, 4 dan 8 week. Parameter perceived by fermented fiber component, which analysis by Analysis of Variance, while the differences among the treatment were tested with the Duncan Multiple Range Test (DMRT), continued by Polinomial Ortogonal. Fermented sugar cane by dry manure with different time of fermentation degraded the rate of NDF and ADF. The best performance was reached at 30% of starter and 4 weeks of fermentation.


2019 ◽  
Vol 9 (01) ◽  
pp. 47-54
Author(s):  
Rabbai San Arif ◽  
Yuli Fitrisia ◽  
Agus Urip Ari Wibowo

Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity that can be used on the network, it needs to be applied to VoIP system using the IPv6 network protocol with supports devices. The test results by using a wired transmission medium that has obtained are the average delay is 117.851 ms, jitter is 5.796 ms, packet loss is 0.38%, throughput is 962.861 kbps, 8.33% of CPU usage and 59.33% of memory usage. The analysis shows that the wired transmission media is better than the wireless transmission media and wireless-wired.


2018 ◽  
Vol 5 (2) ◽  
pp. 102
Author(s):  
Enike Dwi Kusumawati ◽  
Selvinus Lawu Woli ◽  
Aju Tjatur Nugroho Krisnaningsih ◽  
Waluyo Edi Susanto ◽  
Syam Rahadi

ABSTRAKPenelitian ini dilakukan untuk mengetahui motilitas dan viabilitas spermatozoa ayam kampung pada suhu 5oC menggunakan pengencer dan lama simpan yang berbeda. Metode yang digunakan dalam penelitian ini adalah penelitian laboratorium menggunakan Rancangan Acak Lengkap (RAL) Faktorial dengan pengencer ringer lactat solution, air kelapa dan tanpa pengencer serta lama simpan 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, masing-masing diulang 10 kali. Variabel yang diamati yaitu motilitas dan viabilitas spermatozoa. Analisa data yang digunakan adalah analisis varian. Hasil analisis data menunjukkan bahwa motilitas dan viabilitas spermatozoa menggunakan pengencer ringer lactat solution lebih tinggi (P<0,01) serta dapat bertahan sampai lama simpan 24 jam dibandingkan air kelapa dan tanpa pengencer. Adapun nilai motilitas ringer lactat solution, air kelapa dan tanpa pengencer pada lama simpan 24 jam masing-masing sebesar 43,5±17,17%; 8±4,83%; 6,5±2,4%, sedangkan nilai viabilitasnya sebesar 83,2±7,25%; 64,6±3,20%; dan 63,1±2,33%. Kesimpulan dari hasil penelitian ini adalah ringer lactat solution lebih baik dibandingkan air kelapa dan tanpa pengencer dalam mempertahankan kualitas semen ayam kampung pada suhu simpan 5oC sampai lama simpan 24 jam.Kata Kunci : air kelapa, ayam kampung, motilitas, spermatozoa, viabilitas  ABSTRACTThis study was conducted to determine the motility and viability of spermatozoa of Native chickens at 5oC using different diluents and time storage. The method used in this study was laboratory research using Factorial Completely Randomized Design with ringer lactate solution, coconut water and without diluent at 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 hours of time storage each repeated 10 times. The variables observed were motility and viability of sperm. Data analysis used is variance analysis. The results of data analysis showed that the motility and viability of spermatozoa using ringer lactate solution diluents was higher (P <0.05) than coconut water and without diluents. The motility values of ringer lactat solution, coconut water and without diluents were 43,5±17,17%; 8±4,83%; 6,5±2,4% respectively, while the viability values were 83,2±7,25%; 64,6±3,20% and 63,1±2,33%. The conclusion of this study is that ringer lactat solution is better than coconut water an without diluents in maintaining the quality of Native chicken semen at a storage temperature of 5oC until 24 hours.Keywords: coconut water, motility, native chicken, sperm, viability


2019 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Aam Gunawan

Maggot black soldier fly (Hermetia illucens) is a protein source of feed which is highly favored by poultry, especially ducks and chickens. However, it is feared that the provision of live maggot in ducks will affect the organoleptic quality of the egg, especially its taste and aroma. Therefore this study aims to determine the organoleptic quality of duck eggs fed Hermetia illucens maggot feeds in a living state. The study used 120 alabio ducks which were placed in a postal cage. The design used was a completely randomized design, each treatment using six replications. Each replication is taken egg sample to be tested panelists. The panelists used were 67 panelists who were somewhat trained. The data obtained were analyzed of variance and Duncan's multiple range test. The treatments that were tried consisted of P1: low protein rations without live maggot, P2: low protein rations with live maggot administration 40 g/bird/day, P3: high protein rations without live maggot administration, and P4: high protein rations with live maggot administration 40g/bird/day. The results showed that the treatment affected the texture, flavor, and aroma of boiled eggs. Ducks fed with high protein ration coupled with the provision of live maggot 40 g/bird/day produce softer textures, tastes quite good, and aroma more fishy. Keywords: Maggot, duck eggs, organoleptics


2021 ◽  
Vol 20 (3) ◽  
pp. 556
Author(s):  
Muhammad Mustarsidin ◽  
Syachruddin AR ◽  
Ahmad Raksun

Plants that can be used as pesticides are Gadung tubers. Gadung tubers contain cyanide acid to kill armyworm pests because they contain dioscorin toxins which can cause nervous disorders. The purpose of this study was to determine the effect of Gadung tuber extract (Dioscorea hispida) on Caterpillar mortality (Spodoptera exigua) in Shallot plants. This type of research is experimental research. This study used a completely randomized design (CRD). The sample used was 5 caterpillars (Spodoptera exigua) in each polybag with 5 repetitions for each concentration of Gadung tuber extract, namely 0%, 0.5%, 1.0%, 1.5%, 2.0% and 2.5%, so the total Caterpillar used was 150 Caterpillars. Gadung tuber extraction was carried out by maceration method with methanol solvent. Data were analyzed using a one-way analysis of variance at the 95% significance level, followed by DMRT (Duncans Multiple Range Test). The results showed that the Gadung tuber extract had a significant effect on the mortality of caterpillars (Spodoptera exigua) because the F count was greater than the F table (45.40>2.62), and the DMRT test results showed that the optimal concentration of Gadung tuber extract was 2.5%. Therefore, it can be concluded that the extract of Gadung tuber (Dioscorea hispida) affects the mortality of Caterpillars (Spodoptera exigua) in Shallots (Allium cepa).


Agrivet ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 39
Author(s):  
Salma Nabila ◽  
Endah Budi Irawati ◽  
Rina Srilestari

Chryssanthenum is ornamental plant with variety of shape and color which are unique and appealing. So that, it is in great demand in the community. The production of Chrissanthenum conventionally hampered by availability and quality of seeds. Thus, it needs research through tissue culture. The aim of this research is to know interaction between coconut water and thiamine and to determine the best coconut water and thiamine concentration toward Chryssanthenum micro cuttings. This research used laboratory experimental method by using completely randomized design with two factor. The 1st factor was coconut water concentration consisted of three level which were 5%, 10% and 15%. The 2nd factor was thiamine concentration consisted of three level which were 1mg/L, 2 mg/L and 3 mg/L. From the two factors, those were found that, there were nine combination of treatments and repeated 3 times. The variety  of data was analyzed by using Analysis of Variance (ANOVA) with level of α=5%, and continued by examining Duncan’s Multiple Range Test (DMRT) with level of α=5%. The result indicated that the interaction of coconut water concentration was 5% and thiamine was 1 mg/L on the parameters when growing shoot. There was also interaction on coconut water concentration which was 10 % and thiamine was 1 mg/L on the parameters in the number of shoots. interaction of coconut water combination was 15% and thiamine was 2 mg/L on  fresh weight. The addition of 10% coconut water and 1 mg/L thiamine showed the best result on shoot length.


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