scholarly journals Infra Red Spectra of Different Species of Cultivated Oyster Mushrooms Possible Tool for Identifying Bioactive Compounds and Establishing Taxonomic Linkage

2020 ◽  
Vol 5 (2) ◽  
pp. 118-124 ◽  
Author(s):  
Bodhaditya Das ◽  
Jadab Rajkonwar ◽  
A. Jagannath ◽  
Prasanta Kumar Raul ◽  
Utsab Deb
Keyword(s):  
Bioactive Compounds ◽  
Control Measure ◽  
Mushroom Species ◽  
Phylogeny Analysis ◽  
Quality Control Measure ◽  
Infra Red ◽  
Mushroom Harvest ◽  
Oyster Mushrooms ◽  
User Friendly ◽  
Non Destructive

Mushrooms are macrofungi that serve as a vegetarian source of protein along with various bio-active molecules of primary health importance. The activity of the bio-active molecules range from antioxidant, immunomodulation, hepatoprotection. Cultivated oyster mushrooms are also rich in these components which may be estimated quantitatively by skill intensive ‘destructive’ chemical techniques. Infra Red spectroscopy provides a non-destructive user friendly technique to quickly assess the presence of bio-active compounds in mushroom species to be used as a quality control measure as this non-destructive tool can be used to segregate mushroom harvest according to availability of bioactive compounds. IR spectra based strain classification and taxa delimitation of mushroom samples are also attempted vis a vis DNA sequence based phylogeny analysis of the same, but no correlation is observed between the two types of phylogeny analysis.

Positive Diagnostic Yield: A Quality Control Measure of Efficacy

1973 ◽  
Vol 66 (11) ◽  
pp. 1336-1337
Author(s):  
A B Ashare ◽  
R T Cahill ◽  
E L Saenger
Keyword(s):  
Quality Control ◽  
Diagnostic Yield ◽  
Control Measure ◽  
Quality Control Measure

Both microbiological surveillance and audit of procedures improve reprocessing of flexible bronchoscopes and patient safety

2021 ◽  
pp. 1-7
Author(s):  
Philippe Saliou ◽  
Lila Calmettes ◽  
Hervé Le Bars ◽  
Christopher Payan ◽  
Valérie Narbonne ◽  
...  
Keyword(s):  
Risk Factors ◽  
Quality Control ◽  
Regression Model ◽  
Poisson Regression ◽  
Control Measure ◽  
Poisson Regression Model ◽  
Microbiological Contamination ◽  
Quality Control Measure ◽  
The Impact ◽  
Microbiological Surveillance

Abstract Background: Microbiological surveillance of bronchoscopes and automatic endoscope reprocessors (AERs)/washer disinfectors as a quality control measure is controversial. Experts also are divided on the infection risks associated with bronchoscopic procedures. Objective: We evaluated the impact of routine microbiological surveillance and audits of cleaning/disinfection practices on contamination rates of reprocessed bronchoscopes. Design: Audits were conducted of reprocessing procedures and microbiological surveillance on all flexible bronchoscopes used from January 2007 to June 2020 at a teaching hospital in France. Contamination rates per year were calculated and analyzed using a Poisson regression model. The risk factors for microbiological contamination were analyzed using a multivariable logistical regression model. Results: In total, 478 microbiological tests were conducted on 91 different bronchoscopes and 57 on AERs. The rate of bronchoscope contamination significantly decreased between 2007 and 2020, varying from 30.2 to 0% (P < .0001). Multivariate analysis confirmed that retesting after a previous contaminated test was significantly associated with higher risk of bronchoscope contamination (OR, 2.58; P = .015). This finding was explained by the persistence of microorganisms in bronchoscopes despite repeated disinfections. However, the risk of persistent contamination was not associated with the age of the bronchoscope. Conclusions: Our results confirm that bronchoscopes can remain contaminated despite repeated reprocessing. Routine microbial testing of bronchoscopes for quality assurance and audit of decontamination and disinfection procedures can improve the reprocessing of bronchoscopes and minimize the rate of persistent contamination.

scholarly journals Immunomodulatory Effects of Edible and Medicinal Mushrooms and Their Bioactive Immunoregulatory Products

2020 ◽  
Vol 6 (4) ◽  
pp. 269
Author(s):  
Shuang Zhao ◽  
Qi Gao ◽  
Chengbo Rong ◽  
Shouxian Wang ◽  
Zhekun Zhao ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Immune Modulation ◽  
Essential Amino Acids ◽  
Current Status ◽  
Human Immune System ◽  
Mushroom Species ◽  
Medicinal Mushrooms ◽  
Human Immune

Mushrooms have been valued as food and health supplements by humans for centuries. They are rich in dietary fiber, essential amino acids, minerals, and many bioactive compounds, especially those related to human immune system functions. Mushrooms contain diverse immunoregulatory compounds such as terpenes and terpenoids, lectins, fungal immunomodulatory proteins (FIPs) and polysaccharides. The distributions of these compounds differ among mushroom species and their potent immune modulation activities vary depending on their core structures and fraction composition chemical modifications. Here we review the current status of clinical studies on immunomodulatory activities of mushrooms and mushroom products. The potential mechanisms for their activities both in vitro and in vivo were summarized. We describe the approaches that have been used in the development and application of bioactive compounds extracted from mushrooms. These developments have led to the commercialization of a large number of mushroom products. Finally, we discuss the problems in pharmacological applications of mushrooms and mushroom products and highlight a few areas that should be improved before immunomodulatory compounds from mushrooms can be widely used as therapeutic agents.

scholarly journals INTRADEPARTMENTAL CONSULTATION CONFERENCE - A GOOD QUALITY CONTROL PRACTICE AND A PROBLEM-SOLVING ACTIVITY

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Asim Qureshi ◽  
Nadira Mamoon ◽  
Imran Nazir Ahmad ◽  
Zafar Ali ◽  
Humaira Nasir ◽  
...  
Keyword(s):  
Quality Control ◽  
Problem Solving ◽  
Tertiary Care Hospital ◽  
Control Measure ◽  
Tertiary Care ◽  
Variable Number ◽  
Care Hospital ◽  
Control Practice ◽  
Quality Control Measure ◽  
Good Quality Control

Objective: The objective of this study was to evaluate the effectiveness of intradepartmental consultation conference (IDC) as a good quality control measure and problem-solving activity in a busy histopathology department.Methods: This study was done at the histopathology department of a tertiary care hospital over a period of 6 years from 2011 to 2016. IDC is routinely held at 2 pm daily on multi-header microscope. All the difficult and problematic cases are discussed. Discussed cases with the recommendations of IDC are recorded. The cases were extracted from the record of IDC being maintained since 2011. All the record sheets were analysed and the cases were divided organ and system wise.Results: A total of 5766 (6.5%) cases were discussed in this 6-year period of a total of 89,253 cases reported at our centre. Of these, 2198 (38%) were solved on first viewing, 1783 (31%) in the second viewing and 1691 (29%) in thethird viewing. In total, 98% of the cases were resolved until the third viewing, leaving only 94 (2%) cases in which further studies were recommended. A variable number of pathologists were present in the meeting, and an average of4 was present in majority of the occasions.Conclusion: IDC is a good quality control measure to ensure quality in a busy histopathology department and an effective problem-solving activity.Key words: Intradepartmental consultation, histopathology, cancer

Infra-Red Thermography based Inspection of Hybrid Composite Laminates under Flexure Loading

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
R. Bhoominathan ◽  
P. Divyabarathi ◽  
R. Manimegalai ◽  
T. Nithya ◽  
S. Shanmugapriya
Keyword(s):  
Composite Laminates ◽  
Volume Fraction ◽  
Void Content ◽  
Destructive Testing ◽  
Flexural Loading ◽  
Infra Red ◽  
Before And After ◽  
Cfrp Composite ◽  
Structural Parts ◽  
Non Destructive

Generally, the aircraft structural parts are economically high in cost so the materials need to be inspected for defects or damages using various non-destructive testing (NDT) methods like ultrasonic, thermography and acoustic emission. The aim of this project is to characterize the defects in composite laminates before and after the flexural loading using infra-red thermography NDT method. GFRP and hybrid (GFRP+CFRP) composite laminates are fabricated with different orientation such as uni-directional, cross ply, anti-symmetric and angle ply and then tested under flexural loading according to ASTM D790 standard. The volume fraction of the fibre and matrix needs to be found out to know the void content and the mixing ratio of reinforcement and binder.

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