Increasing the resource of agricultural machinery

An effective technique in the improvement of wear resistance and resource especially wornout friction is provided in the surface parts of anti-friction tribological coatings of various compositions entered in the regular lubrication maintenance of machines and equipment [1, 5, 7–10, 12–17]. Approved since 1930 [10] they during maintenance of machinery and equipment allows 2–3 times to increase their service life, 5–20 % reduced consumption of fuel and electricity, up to 30 % operating costs [7, 9, 10, 13, 14]. Introduction to oil chemically active substances, suspensions of particles of natural and artificial minerals, the oil solutions of the active organic substances, metal salts of organic acids [7, 17], the electric charge consumption less than 1 W [4, 6, 11], creating a wear-reducing coating [2, 5, 8, 12, 15–17], enhance adhesion of the lubricant is technically and economically justified, with a margin of 500–800 % or more [1, 3, 5, 7–10, 12–17]. CIP technical service as part of the overall system of technical maintenance and repair of machines, meets all the periods of their life cycle, and includes the testing, diagnosis, commissioning and preventive triboactive, the cleaning of the lubrication systems of engines, fuel, cooling, and most importantly — the restoration of worn units repair-regenerative trains [5, 7–10, 12–14, 17]. In the last intake of the mineral particles of the catalytically active open friction surface are subjected to a mechanical cold deformation, are involved in adhesion, physical and chemical processes, tribromoimidazole, catalysis of tribo-processes [2, 15–17]. As a result of the repair coating [2, 5, 12, 15–17]. The serpentine triboactive create a durable anti-friction coatings [2, 15–17]. According to research by European and American researchers [15, 16], especially in Chinese state laboratory of Tribology of Tsinghua University [17], these minerals cause the formation of diamondlike carbon fi lms (Diamond-Like carbon fi lms — DLC-fi lms). Their surface is high purity and hardness, underneath are visible traces of mechanical processing, for 90 % consist of carbon, the resistance of 10–300 Ohm/cm. The eff ect of serpentine processing is manifested through the hours and ability to operate even without triboactive [2, 10]. Below are the laboratory tribotechnical tests of triboactive and fi ling of charges in the oil, which confi rm the eff ectiveness of non-traditional tribology.

Voriconazole-Based Salts Are Active against Multidrug-Resistant Human Pathogenic Yeasts

Voriconazole (VOR) hydrochloride is unequivocally converted into VOR lactates and valinates upon reaction with silver salts of organic acids. This study found that the anticandidal in vitro activity of these compounds was comparable or slightly better than that of VOR. The Candida albicans clinical isolate overexpressing CaCDR1/CaCDR2 genes, highly resistant to VOR, was apparently more susceptible to VOR salts. On the other hand, the susceptibility of another C. albicans clinical isolate (demonstrating multidrug resistance due to the overexpression of CaMDR1) to VOR salts was comparable to that to VOR. Comparative studies on the influence of VOR and its salts on Rhodamine 6G efflux from susceptible and multidrug-resistant C. albicans cells revealed that VOR salts are poorer substrates for the CaCdr1p drug efflux pump than VOR.

THE SHELF-LIFE OF BLACK TIGER SHRIMP (PENAEUS MONODON) TREATED WITH THE DIFFERENT CONDITIONS

This study examines the chemical and microbiological changes and the sensory attributes of black tiger shrimp (Penaeus monodon) when stored at the temperature of 0 ºC. Sodium propionate and sodium lactate were used to treat shrimps before storage. Vacuum packaging was also carefully investigated. Throughout storage, the quality indicates including TVB-N, TMA-N, histamine, quality index (QI) and total viable count (TVC) were used to evaluate the quality changes of shrimp. The results show that though with different rates, the increase in quality indicators caused the decrease in the quality of shrimp during storage. The quality of shrimps treated with salts of organic acids or those packed in the vacuum bags was significantly higher than that of the control. In particular, the shelf-life of the sample packed in the vacuum packages was twelve days, which was four days longer than that of the control.

Effect of dietary supplementation of salts of organic acids on gut morphology and meat quality of broilers

The present investigation was conducted to appraise the effect of different levels of salts of organic acids on the gut morphology and meat quality of broilers. A total 300 day-old commercial chicks were randomly divided into 5 treatments. Each treatment consists of 6 replicates having 10 birds per replicate. The control diet was formulated to contain approximately the same metabolizable energy (ME), crude protein and limiting amino acids (methionine and lysine) as per the requirements of birds. The first group (T1) was fed on control diet without any feed additives, while, groups (T2, T3, T4 and T5) were fed on basal diets containing sodium butyrate and calcium propionate @ 0.5% and 1.0% respectively. Six birds from each treatment (1 per replication) were randomly selected for slaughter and collection of samples and microbial study at day 42. Performance of birds in terms of body weight and feed conversion ratio was significantly improved in treated groups. Results showed that in gut morphology, pH was reduced significantly (P less than 0.05) in T3 and T5 (6.24 and 6.22, respectively) as compared to the control group (6.64) while significant improvement was observed in villus height and crypt depth in all treatment groups and were highest in T3 (539.50µm,135.67 µm). Lowest Coliform bacteria (log CFU/g.)was recorded in T3 (16.57) which was significantly differ with the T1 (19.17) and Lactobacilli count was significantly increased in all treatments as compared to control.Supplementation of organic acids reduced meat cholesterol level significantly and lowest was in T5(48.03mg/dL) followed by T3 (48.30mg/dL). Similarly SFA decreased while PUFA content was increased significantly on supplementation of salts as compared to control.