scholarly journals APLIKASI TEKNOLOGI DIELECTRIC BARRIER DISCHARGE-UV PLASMA TERHADAP SIFAT FISIK DAN KIMIA TELUR AYAM (Gallus gallus domesticus)

BUANA SAINS ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 85
Author(s):  
Endrika Widyastuti ◽  
Aldila Daydeva

Eggs are food that contains high nutrition, however egg products susceptible damage so preservation process is required. Dielectric Barrier Discharge (DBD) UV Plasma has proven very effective as an alternative technology to preserve fresh egg by inactivation bacteria and prevent contamination in a fresh egg. the aim of this study is to evaluated effect of Dielectric Barrier Discharge (DBD) UV Plasma on physical and chemical quality of chicken eggs (Gallus gallus domesticus). The fresh eggs were stored at room temperature and assessed for their Physical (Haugh unit and yolk index) and chemical properties (yolk pH, albumen pH, and egg nutrition) on 0, 5, 7, 11, and 14 days. Analysis of variance (ANOVA) was used to analyze significant difference among the samples. The result shows that DBD UV plasma can maintain haugh unit, yolk index, yolk pH, and albumen pH than control. The eggs treated with DBD UV recorded have no significant difference for egg nutrition.

Author(s):  
Arjun Ghimire ◽  
Pawan Parajuli

Broiler chickens (Gallus gallus domesticus) were collected from local chicken suppliers of Dharan (26.8065° N, 87.2846° E), Nepal, and slaughtered to prepare the cut-up parts (breast, drumstick, dorso, wings, and thigh). They were vacuum packed in polythene bags and frozen stored (-21.5 ±3.5ºC) for 45 days to study the effect of frozen storage on the water holding capacity (WHC) of meat. Cooking loss, drip loss, and pH changes were analyzed at 5 days intervals during storage and the data were analyzed using Genstat® v 12.1.The cut-up parts showed a significant change (p<0.05) in pH, cooking loss, and drip loss during 45 days of frozen storage. The pH decreased while the drip loss and the cooking loss increased gradually upon storage. The pH was found to be varied among the cut-up parts with a minimum pH scale of 5.25 for wings, followed by 5.3 for thigh, at the end. The highest drip loss of 6.11% was observed in wings after 5 days of storage which ended up to 8.97% after 45 days of frozen storage while drumstick and thigh samples showed significantly lower drip loss of 6.02%, and 5.43% respectively. The change in cooking loss showed a similar pattern as that of drip loss with a significantly higher value of 37.36% in the breast while it showed no significant difference in drumstick, dorso, and thigh meat. Thus, the study reveals that freezing of broiler chicken meats for a prolonged period adversely affects the WHC of meat


Author(s):  
Kenji Ebihara ◽  
Masahiro Takayama ◽  
Tomoaki Ikegami ◽  
Kouichi Ogata ◽  
Henryka Danuta Stryczewska ◽  
...  

AbstractWe have developed the ozone generation system suitable for soil sterilization and ozone supplying system into the soil. The coaxial dielectric barrier discharge produced the ozone with high concentration at high efficiency. Injection of the on- site generated ozone gas into the soil resulted in decreasing soil pathogen and changing chemical properties of the soil. We studied ozone sterilization of agricultural soil when it was treated by varying ozone dosages and process duration. The temporal and spatial properties of the soil were monitored using the pH and electrical conductivity. The bacteria populations, pathogen and soil-borne fungi were measured after various ozone treatment procedures. 100g/m3 of ozone was injected into the soil at a flow rate of 2 liter/min during 60 min. The pH shows drastic change in 40 min that will be one of indexes indicating the sterilization level. In this treatment 100% of the bacteria in the agricultural soil was killed.


2021 ◽  
Vol 21 (2) ◽  
pp. 128-140
Author(s):  
Bagus Dwijayanti ◽  
Erdiansyah Rahmi ◽  
Ummu Balqis ◽  
Fitriani Fitriani ◽  
Dian Masyitha ◽  
...  

ABSTRACT. Usus adalah salah satu organ pencernaan yang berperan penting pada proses absorpsi nutrisi sebagai sumber energi. Penelitian ini bertujuan mengetahui histologi, histomorfometri dan histokimia sebaran glikogen pada usus ayam buras (Gallus gallus domesticus) sebelum dan setelah menetas menggunakan pewarnaan Haematoksilin-Eosin (HE) dan pewarnaan Periodic Acid Schiff (PAS). Sampel penelitian terdiri atas empat kelompok tingkat umur berbeda, setiap kelompok berjumlah enam usus ayam. Hasil penelitian menunjukkan perbedaan nyata (P˂0,05) morfometri usus ayam buras secara makroskopis. Secara histologis pada setiap perkembangan sudah terlihat lapisan usus yang terdiri atas tunika mukosa, submukosa, muskularis, dan serosa. Pada tunika mukosa, didapati tiga lamina yaitu lamina epitelia, propria, dan muskularis mukosa yang mulai teramati pada masa inkubasi hari ke-14. Lamina epitelia berupa sel epitel silindris selapis dengan mikrovili, lamina propria berupa jaringan ikat, dan lamina muskularis mukosa berupa berkas otot polos. Pada tunika mukosa dijumpai adanya sel Goblet dan kripta Liberkuhn yang teramati pada masa inkubasi hari ke-20 dan setelah menetas hari ke-7. Hasil histomorfometri ketebalan lapisan usus, panjang vili, lebar vili, dan diameter lumen usus ayam buras pada masa inkubasi dan setelah menetas menunjukkan perbedaan nyata (P˂0,05). Temuan reaksi positif kuat terhadap pewarnaan PAS dijumpai pada masa inkubasi hari ke-20 dan setelah menetas hari ke-7 dan positif lemah pada masa inkubasi hari ke-14. Dapat disimpulkan bahwa terdapat korelasi antara perkembangan usus ayam secara makroskopis, histomorfometri ketebalan tunika dan vili, serta sebaran reaksi positif kuat terhadap pewarnaan PAS pada masa inkubasi hari ke-20 dan setelah menetas hari ke-7.  (Histological, histomorphometrical, and histochemical of intestine on native chicken (Gallus gallus domesticus) during pre and posthatch period) ABSTRAK. The intestines are one of the digestive organ that play an important role in the nutrient absorption process as an energy source. The aim of this study was to determine the histomorphometric and histochemical of glycogen distribution in the intestines of native chickens pre and post hatching periods using Haematoxylin-Eosin (HE) staining and Periodic Acid Schiff (PAS) staining. The samples of this study was consisted of four different age groups, each group consisting of six chicken intestines. The results showed a significant difference (P˂0.05) on macroscopic morphometry of the native chicken’s intestine. Histologically in each group has been found the intestines consisting of mucosa, submucous, muscularis, and serous tunic. In the mucosal tunic, there were three layers; ephitelial, propria, and muscularial mucous can be observed during the 14th day of incubation period. Ephitelial layer in the form of cylindrical epithelial cells with microvilli, proprial layer in the form of connective tissue, and layer of the muscularis mucosa form smooth muscle thread. In the mucosal tunic, there was Goblet cells and Liberkuhn crypts that can be observed during the 20th day incubation period and 7th day post hatch. Histomorphometry results of intestinal lining thickness, villi length, villi width, and lumen diameter of native chicken intestine during incubation and post hatching showed significant differences (P˂0.05). The findings of a strong positive reaction to the staining of PAS were found on the incubation period of the 20th day and post hatching the 7th day and positively weak on the incubation period of the 14th day. It can be concluded that there is a correlation between macroscopic development of chicken intestine, histomorphometric of tunica and villous thickness, as well as the distribution of strong positive reactions to the staining of PAS during the incubation period of the 20th day and post hatching the 7th day.


2010 ◽  
Vol 455 ◽  
pp. 472-475
Author(s):  
Yan Zhang ◽  
Bo Zhao ◽  
Jing Lin Tong

In this thesis, the atmospheric pressure nitrogen dielectric barrier discharge (DBD) plasma modified polyproylene (PP) melt blown non-woven surface wettability are investigated. The change of surfaces physical and chemical properties are studied by water contact angle measurement and X-ray photoelectron spectroscopy (XPS) before and after plasma treatment. The experimental results indicate the surface hydrophilic can be greatly improved when the PP simples is treated by atmospheric pressure nitrogen DBD plasma for a short time. And a large number of oxygen-containing and nitrogen-containing functional groups are inplanted on the PP non-woven sample surface.


2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Siswandy Siswandy ◽  
Erdiansyah Rahmi ◽  
Dian Masyitha ◽  
Fitriani Fitriani ◽  
Fadli A. Gani ◽  
...  

ABSTRAK. Hati adalah kelenjar terbesar yang terdapat di dalam tubuh dan dapat dianggap sebagai organ pusat dalam pemeliharaan suplai energi. Penelitian ini bertujuan untuk mengetahui histologi, histomorfometri, dan histokimia sebaran glikogen pada hati ayam buras sebelum dan sesudah menetas. Sampel penelitian dibagi menjadi empat kelompok tingkat umur berbeda dan masing-masing kelompok berjumlah enam hati ayam. Hasil penelitian menunjukkan perbedaan nyata (P0,05) pertumbuhan hati ayam buras secara makroskopis. Pada setiap perkembangan sudah terdapat hepatosit berbentuk poligon yang memiliki inti sel bulat di tengah hepatosit, terdapat juga vena central yang dilapisi sel endotel pipih selapis serta didapati sinusoid yang berada diantara hepatosit, dan juga ditemukan Kupffer’s cell hanya pada hati ayam setelah menetas hari ke-7. Hasil pengukuran diameter vena central hati ayam buras hari ke-7, hari ke-14, hari ke- 20 sebelum menetas dan hari ke-7 setelah menetas berturut-turut adalah 17,70 ± 1,16 µm; 60,32 ± 2,22 µm; 49,316 ± 1,93 µm; dan 129,11 ± 7,43 µm. Hasil histokimia sebaran glikogen pada hati ayam buras hari ke-14, hari ke- 20 sebelum menetas dan hari ke-7 setelah menetas berturut-turut adalah 1,44 ± 0,93; 2,27 ± 0,74; dan 2,77 ± 0,15. Dapat disimpulkan, bahwa diameter vena central dan sebaran glikogen meningkat seiring pertumbuhan ayam buras. (Histological, histomorphometrical, and histochemical of liver on native chicken (Gallus gallus domesticus) during pre and posthatch period) ABSTRACT. The liver is the largest gland in the body and considered as a central organ in maintaining energy supplies. The study aimed to determine the histologic, histomorphometric and histochemical of glycogen distribution in the liver of native chicken during pre and posthatching period.. The study sample were divided into four different age groups and each group consisted of six chicken livers. The results showed a significant difference (P0,05) in native chicken liver growth macroscopically. In every development there are already polygonal hepatocytes that have a round cell nucleus in the middle of the hepatocytes, there is also a central vein that is coated with a layer of flat endothelial cells and also sinusoids that are between the hepatocytes, and kupffer's cells also found in chicken liver 7th day posthatching. The results measurements of the central vein diameter in liver native chickens on the 7th, 14th, 20th pre hatching period and 7th post hatching were 17.70 ± 1.16 µm; 60.32 ± 2.22 µm; 49.32 ± 1.93 µm; and 129.11 ± 7,43 µm; The measure results of the glycogen distribution in liver native chickens on the 14th, 20th pre hatching period and 7th post hatching were 1,44 ± 0,93; 2,27 ± 0,74; and 2,77 ± 0,15. It can be concluded, that central vein diameter and glycogen distribution were increased by growth of native chickens.


Sign in / Sign up

Export Citation Format

Share Document