Beer is a hostile environment for most microorganisms, but some lactic acid bacteria can grow in this environment. This is primarily because these organisms have developed the ability to grow in the presence of hops. It has been speculated that hop resistance is inversely correlated to resistance against oxidation, and this would have great impact on the use of various disinfectants in the brew...

Pyruvate kinase (EC 2.7.1.40 ATP: pyruvate phosphotransferase) from mammalian sources functions predominantly in an aerobic environment. Basically two forms of the enzyme are found, one in gluconeogenie tissues which has allosteric properties; the other in non-gluconeogenic tissues which exhibits classical Michaelis-Menten kinetics. By contrast, pyruvate kinase from many invertebrate sources fu...

Due to its structure, hexamethylenetetramine (HMT) is a slowly biodegradable substance, hydrolysing in acid environment to ammonium and formaldehyde. Formaldehyde is toxic under normal conditions for biological treatment processes. Following an adaptation, a formaldehyde concentration of 1000 mg·l may become biodegradable both in aerobic and anaerobic conditions. Acidic conditions for hydrolysi...

results a significant increase in blood abca1 (ex group p < 0.002, t = - 9.876) and apo a-i (ex group p < 0.05, t = 2.76) gene expression was shown following the 12 weeks of training. plasma high-density lipoprotein-cholesterol (hdl-c) concentration increased (p < 0.001, t = 4.90 respectively) while plasma low-density lipoprotein-cholesterol (ldl-c) concentration decreased (p < 0.001, t = 4.27)...

the aim of this study was to assess the effect of four weeks of high intensity aerobic interval football training on aerobic performance indices in soccer players. 18 soccer players in iran azadegan league (age 21.88+2.24 yr, height 174.22+5.33 cm, weight 67.7+5.7 kg, body fat percent 12.38+3.29) volunteered to participate in this study and divided into two groups (training, 12 players; control...

the aim of this study was to compare the effect of an aerobic exercise program with two different volumes on some risk factors of cardiovascular diseases in mentally retarded girls. 24 mentally retarded girls were randomly assigned to three groups: 1) aerobic exercise, 3 sessions per week for 45 minutes, 2) aerobic exercise, 4 sessions per week for 40 minutes, and 3) control. the experimental g...

Background: MEG is extensively applied in the sour gas industry as a hydrate inhibitor. It is toxic in oral drinking and serious injury or death may result from swallowing of pure ethylene glycol and poses a potential hazard to the environment through impact soil. Glycols are harmful to aquatic life. There is little information about the digestion of MEG in the aerobic reactor. Therefore, t...

Comparison of Concurrent Aerobic, Resistance and Combination (Aerobic + Resistance) Training on Serum Levels Leptin, Atherogenic Index Plasma Cardiovascular Risk Factors in Obese Inactive Student Girls