Characteristics Of Smoked Catfish (Hemibagrus Nemurus) Prepared Frompond Culture, Cage And Wild Fish

This study was aimed to evaluate the sensory quality, proximate composition, amino acids and fatty acids profiles of smoked catfish prepared from pond, cage culture and wild fish. Catfish samples 300-350 grams in weight wastaken respectualy from wild (Kampar river), pond and cage culture in Sungai Paku, Kampar. The fish was smoked using hot smoking method, and the smoked fish was evaluated for smoking yield, sensory quality, proximate composition, amino acid and fatty acid profile.The smoking yield value for smoked fish prepared from pond culture fish was the highest, and then followed by that prepared from cage culture fish and wild fish. The highest fat and moisture composition was found in smoked fish prepared from pond culture fish, then followed by cage culture fish and wild fish. Protein and ash was the highest in smoked fish prepared from wild fish then followed by cage and pond culture fish. Overally, sensory quality and essential amino acid profile of smoked fish was not much different among the fish from different sourcer. However, PUFA was the highest in the smoked fish prepared from cage culture fish them followed by wild fish and pond fish

Mast Cells and Angiogenesis in Oral Malignant and Premalignant Lesions

Mast cell contribution to neoangiogenesis during tumorigenesis in oral squamous cell carcinoma is not determined yet. Objectives: To associate numerical mast cell density (MCD) to numerical microvessel density (MVD) during the progression of oral leukoplakia without dysplasia and leukoplakia with dysplasia to squamous cell carcinoma (OSCC). Materials and methods: MVD was analysed immunohistochemically (mouse monoclonal anti-human CD34) in 49 paraffin-embedded specimens, 35 OSCCs, 9 leukoplakias and 5 normal oral tissues. Toluidine blue counterstaining revealed mast cells. MCD and MVD were assessed at the same optical field. Results: MVD increased between: normal oral mucosa, dysplasia (p=0.004), OSCC (p=0.001), leukoplakia and OSCC (p=0.041). MCD increased between: normal oral mucosa, dysplasia (p=0.003), OSCC (p=0.000), leukoplakia and OSCC (p=0.007). MVD was found to depend on MCD (p=0.000) in a percent 28.3% (power curve fit model). Conclusions: Mast cells are attracted at the lesion site and may turn on an angiogenic switch during tumorigenesis in OSCC

Thermodynamic properties of the lipid bilayer transition. Pseudocritical phenomena.

Ultrasonic relaxation of multilamellar liposomes formed from dipalmitoylphosphatidylcholine was measured near the gel-to-liquid crystal transition by a differential ultrasonic resonator. The relaxation time and strength increased remarkably near the transition temperature, indicating a pseudocritical phenomenon. A quantitative analysis of the relaxation in terms of thermodynamic relationships between specific heat, thermal-expansion coefficient, and compressibility showed that more than 90% of the total endothermic heat of the transition arises from the latent heat. The temperature dependence of the ultrasonic relaxation parameters was also analyzed by the Landau theory; we obtain a small but finite difference, 0.6 degree C, between the pseudocritical temperature and the transition temperature. These results provide a quantitative description of both the first-order and second-order characters of the gel-to-liquid crystal transition