scholarly journals Growth Characteristics of Brevibacterium, Corynebacterium, Microbacterium, and Staphylococcus spp. Isolated from Surface-Ripened Cheese

2007 ◽  
Vol 73 (23) ◽  
pp. 7732-7739 ◽  
Author(s):  
Jérôme Mounier ◽  
Mary C. Rea ◽  
Paula M. O'Connor ◽  
Gerald F. Fitzgerald ◽  
Timothy M. Cogan

ABSTRACT The growth characteristics of five bacteria, Brevibacterium aurantiacum 1-16-58, Corynebacterium casei DPC 5298T, Corynebacterium variabile DPC 5310, Microbacterium gubbeenense DPC 5286T, and Staphylococcus saprophyticus 4E61, all of which were isolated from the surface of smear cheese, were studied in complex and chemically defined media. All of the coryneforms, except M. gubbeenense, grew in 12% salt, while B. aurantiacum and S. saprophyticus grew in 15% salt. All five bacteria assimilated lactate in a semisynthetic medium, and none of the coryneform bacteria assimilated lactose. Glucose assimilation was poor, except by S. saprophyticus and C. casei. Five to seven amino acids were assimilated by the coryneforms and 12 by S. saprophyticus. Glutamate, phenylalanine, and proline were utilized by all five bacteria, whereas utilization of serine, threonine, aspartate, histidine, alanine, arginine, leucine, isoleucine, and glycine depended on the organism. Growth of C. casei restarted after addition of glutamate, proline, serine, and lactate at the end of the exponential phase, indicating that these amino acids and lactate can be used as energy sources. Pantothenic acid was essential for the growth of C. casei and M. gubbeenense. Omission of biotin reduced the growth of B. aurantiacum, C. casei, and M. gubbeenense. All of the bacteria contained lactate dehydrogenase activity (with both pyruvate and lactate as substrates) and glutamate pyruvate transaminase activity but not urease activity.

Parasitology ◽  
1972 ◽  
Vol 64 (3) ◽  
pp. 379-387 ◽  
Author(s):  
L. H. Chappell ◽  
G. C. Southworth ◽  
C. P. Read

During 2 min incubations of Trypanosoma gambiense (bloodstream form) with [U-14C]glucose (1 mM) over 60% of absorbed label was detected in free alanine. In the presence of 12·5 mM unlabelled alanine, the amount of alanine synthesized from glucose was reduced by less than 10%. These data support previous observations on the high level of transaminase activity in African human trypanosomes.Alanine, aspartate and glutamate were metabolized to various other free amino acids whereas a significant amount of label derived from [14C]arginine could not be accounted for by amino acid assay.The sulphur containing amino acids, cysteic acid and taurine, were apparently synthesized from alanine, glutamate and arginine. The significance of these syntheses is poorly understood.Following incubations of trypanosomes for 2 min in exogenous amino acids the internal free pool became imbalanced due to accumulation and metabolism of the substrate amino acid.Evidence obtained indicated that the level of free endogenous glutamate may be rate limiting for the glutamate-pyruvate transaminase system.


2010 ◽  
Vol 2 (2) ◽  
pp. 300-304
Author(s):  
G. V. Zodape

An attempt has been made to study the effect of Aloe vera juice on the toxicity induced by arsenic on Labeo rohita fingerlings, exposed to sub–lethal concentration of a combination of arsenic and Aloe vera juice for 21 days. The study of bioaccumulation pattern of arsenic supplimented with Aloe vera juice was carried out on selected parts like liver and muscle tissues. In both the liver and muscle tissues a pronounced effect of arsenic and Aloe vera juice was noted on the activities of Glutamate - oxaloacetate transaminase (GOT), Glutamate - pyruvate transaminase (GPT), acid and alkaline phosphatase (ACP and ALP) enzymes. Also the levels of total proteins, total lipids, protease, free amino acids and glycogen were assessed. A significant decrease in enzymatic activity of GPT, GOT, ACP and ALP was noted in liver and muscle tissues. The level of protein, lipids and glycogen also decreased, whereas the amount of protease and free amino acids profoundly increased. The results of present study suggest that Aloe vera juice has an effective hepatoprotective and tissue protective property against arsenic toxicity. The results further suggest that the L.rohita fingerlings could be suitable for monitoring the bioavailability of water bound metals in fresh water habitats.


1986 ◽  
Vol 64 (8) ◽  
pp. 1628-1632 ◽  
Author(s):  
Mushtaq A. Saleem ◽  
A. R. Shakoori

Five days of starvation led to a significant increase in the amylase activity of sixth instar larvae of Tribolium castaneum. Acid phosphatase, alkaline phosphatase, and lactate dehydrogenase activities and glucose, glycogen, free amino acids, and RNA contents showed a significant decrease. Other parameters such as glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, total protein, soluble protein, lipids, cholesterol, and DNA content did not show any significant deviation. On prolongation of starvation for 10 days all the biochemical parameters tested were significantly reduced, except for the amylase activity and cholesterol content, which showed highly elevated values. The total and soluble protein content remained unaltered. Refeeding of starved larvae tended to normalize some of the parameters such as glucose, lipids, glycogen, and DNA. On the other hand, lactate dehydrogenase, acid phosphatase, alkaline phosphatase, glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, free amino acids, and RNA decreased drastically, whereas the soluble protein and cholesterol contents increased considerably in refed larvae.


Author(s):  
Iqbal Donarika Widagdo ◽  
Setyoko Setyoko ◽  
M. Riza Setiawan

Background: Treatment of Tuberculosis patients are given in the form of a drugs combination. Some drugs which are Pyrazinamide, Isoniazid and Rifampicin can provide hepatotoxic side effects. Specific sign of hepatotoxic occurrence is increasing in the Serum Glutamate Pyruvate Transaminase levels. One of factors that influence hepatotoxicity is nutritional status. This study aims to determine the relationship between nutritional status and levels of Serum Glutamate Pyruvate Transaminase in tuberculosis patients.Methods: A non-experimental correlation study, retrospective approach with total sampling method, according to inclusion and exclusion criteria. Located at tCommunity Lung Health Center (BKPM) Ambarawa area. The analysis used the Spearman rank correlation testResults: Based on the test results of Spearman Rank correlation test, the correlation coefficient (r) is  -0.267. Hypothesis test results also showed 0.037 (p-value <0.05), which means the existence of a significant correlation between variabels.Conclusion: There is a relationship between nutritional status and levels of Serum Glutamate Pyruvate Transaminase in tuberculosis patients.


2020 ◽  
Vol 9 (12) ◽  
pp. 3923
Author(s):  
José María Hernández Pérez ◽  
Ignacio Blanco ◽  
Agustín Jesús Sánchez Medina ◽  
Laura Díaz Hernández ◽  
José Antonio Pérez Pérez

Background: Patients with liver disease associated with alpha-1 antitrypsin deficiency (AATD) are homozygous for the Z mutation, leading to chronic liver damage. Objective: To assess the serum levels of glutamate-oxaloacetate transaminase (GOT), glutamate-pyruvate transaminase (GPT), and gamma-glutamyl transpeptidase (GGT) in patients with different genotypes for the alpha-1 antitrypsin (AAT) gene. Methods: Patients (n = 1494) underwent genotyping of the SERPINA1 gene, together with a determination of AAT and GOT and GPT and GGT transaminase levels. Patients with a deficient allele (n = 476) and with a normal genotype were compared. Results: A statistically significant association was found between deficient genotypes and GOT (p < 0.0003), GPT (p < 0.002), and GGT (p < 0.006). Comparing GOT levels in patients with PI*Z deficient variant versus those with normal genotype, an odds ratio (OR) of 2.72 (CI: 1.5–4.87) (p < 0.0005) was obtained. This finding was replicated with the PI*Z allele and the GPT values (OR = 2.31; CI: 1.45–3.67; p < 0.0003). In addition, a statistically significant association was found between liver enzymes and AAT values. Conclusion: The PI*Z allele seemed to be a risk factor for the development of liver damage. AAT deficient genotypes were associated with GOT, GPT, and GGT altered values. Low AAT levels were associated with high GPT and GGT levels.


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