Effects of Heating, Storage, and Ultraviolet Exposure on Antimicrobial Activity of Garlic Juice

Noori S. Al-Waili,Khelod Y. Saloom,M. Akmal,Thia N. Al-Waili,Ali N. Al-Waili,Hamza Al-Waili,Amjed Ali,Karem Al-Sahlani 한국식품영양과학회 2007 Journal of medicinal food Vol.10 No.1

This study was designed to investigate the effect of heating, storage, and ultraviolet exposure on antimicrobialactivity of garlic juice and its bacteriocidal activity against common human pathogens. Antimicrobial activity of fresh garlicjuice was tested against Escherichia coli, Staphylococcus aureus, Streptococcus hemolyticusB, S. hemolyticusA, Klebsiellasp., Shigella dysenteriae, and Candida albicansusing the disc method. The dilution method was performed by addition ofgarlic juice to broth media to obtain 1100% concentrations as vol/vol or wt/vol. Garlic juice was used after 24 hours of stor-age at 4°C, heating to 100°C for 5 minutes, 10 minutes, 30 minutes, and 60 minutes, heating to 80°C for 60 minutes, and 4hours of exposure to ultraviolet light. Re-culture of specimens taken from garlic-induced negative media was performed infresh broth free of garlic juice. Results showed that all the isolates were sensitive to fresh garlic juice; the most sensitive wasC. albicans, and the least sensitive was S. hemolyticusA. Heating to 100°C for 30 and 60 minutes completely abolished theantimicrobial activity, while heating for 5 and 10 minutes, storage for 24 hours, and 4 hours of ultraviolet exposure decreasedit. Garlic juice was bactericidal at concentrations of 5% and more. Thus garlic juice has marked antimicrobial activity thatmakes it a potential agent to be tested in clinical trials. The antimicrobial activity was compromised by storage and heating;therefore it is advisable to use fresh garlic and avoid boiling it for more than 5 minutes during cooking.

Worn Wheel/Rail Contact Simulation and Cultivated Shear Stresses

Noori, Ziaedin,Shahravi, Majid,Rezvani, Mohammad Ali The Korean Society for Railway 2013 한국철도학회논문집 Vol.16 No.2

Railway system is today the most efficient way for transportation in many cases in several forms of application. Yet, wear phenomenon, profile evolution, fatigue, fracture, derailment are the major worries (financial and safety) in this system which force significant direct and indirect maintenance costs. To improve the cyclic maintenance procedures and the safety issues, it can be very satisfactory to be informed of the state of wheel/rail interaction with mileage. In present paper, an investigation of the behavior of the shear stresses by logged distance is approached, by implementing the field measurement procedure, in order to determine the real conduct of the most important cause of defects in wheel/rail contact, shear stress. The results coming from a simulation procedure indicate that the amounts of shear stresses are still in high-magnitudes when the wheel and rail are completely worn; even though in simulation based on the laboratory measurements of profile evolutions, the stresses become significantly reduced by logged distance.

Inactivation efficacy of a non-thermal atmospheric pressure plasma generator against Mycobacterium tuberculosis

( Noori Lee ),( Sanghee Park ),( Jiyeon Kim ),( Keyyoung Kim ),( Daeyeon Kim ) 대한결핵 및 호흡기학회 2018 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.126 No.-

Background: Tuberculosis is spreading from person to person through the air. When a person with infectious tuberculosis disease coughs or sneezes, tiny particles containing Mycobacterium tuberculosis are expelled into the air and remain suspended in the air for several hours. Therefore, it is important to control the transmission of M. tuberculosis through air. This study was conducted to determine the inactivation efficacy of the plasma generator against the M. tuberculosis. Methods: The attenuated M. tuberculosis H37Ra inoculated on the solid medium were placed in hospital wards and BL3 laboratory, and a plasma generator (Model TB-500, Shinyoung Airtech, Seongnam-si, Korea) was operated by time interval. The growth of M. tuberculosis was determined by plasma exposure time. Results: When M. tuberculosis was exposed to non-thermal plasma for 3, 6, 9, and 24 hours, the inhibition effects were 45-75%, 69-86%, 93-100%, and 100%, respectively. Thus, it was found that the inhibition effect of plasma generators against M. tuberculosis were proportional to the plasma exposure time. Conclusion: The non-thermal atmospheric pressure plasma generator may be applied as a promising technique for the prevention of M. tuberculosis infection in healthcare and other public facilities, if it is operated more than 9 hours. *This article has been accepted for publication on Korean J Healthc Assoc Infect Control Prev.

Biofouling effects on the performance of microbial fuel cells and recent advances in biotechnological and chemical strategies for mitigation

Noori, Md.T.,Ghangrekar, M.M.,Mukherjee, C.K.,Min, Booki Elsevier 2019 Biotechnology advances Vol.37 No.8

<P><B>Abstract</B></P> <P>The occurrence of biofouling in MFC can cause severe problems such as hindering proton transfer and increasing the ohmic and charge transfer resistance of cathodes, which results in a rapid decline in performance of MFC. This is one of the main reasons why scaling-up of MFCs has not yet been successfully accomplished. The present review article is a wide-ranging attempt to provide insights to the biofouling mechanisms on surfaces of MFC, mainly on proton exchange membranes and cathodes, and their effects on performance of MFC based on theoretical and practical evidence. Various biofouling mitigation techniques for membranes are discussed, including preparation of antifouling composite membranes, modification of the physical and chemical properties of existing membranes, and coating with antifouling agents. For cathodes of MFC, use of Ag nanoparticles, Ag-based composite nanoparticles, and antifouling chemicals is outlined in considerable detail. Finally, prospective techniques for mitigation of biofouling are discussed, which have not been given much previous attention in the field of MFC research. This article will help to enhance understanding of the severity of biofouling issues in MFCs and provides up-to-date solutions. It will be beneficial for scientific communities for further strengthening MFC research and will also help in progressing this cutting-edge technology to scale-up, using the most efficient methods as described here.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Adversity of biofouling in MFCs and up-to-date mitigation approaches is reviewed. </LI> <LI> State of art mechanism of biofouling development in MFCs is well explained. </LI> <LI> Disability of membrane and cathode functions due to biofouling development is analyzed. </LI> <LI> Methodologies to understand effect of biofouling on MFC's performance is elucidated. </LI> <LI> Present status and future challenges for scalable MFCs to curb biofouling is presented. </LI> </UL> </P>

The Effect of an Empowerment Program on the Health-promoting Behaviors of Iranian Women Workers: A Randomized Controlled Trial

Noori, Fatemeh,Behboodimoghadam, Zahra,Haghani, Shima,Pashaeypoor, Shahzad The Korean Society for Preventive Medicine 2021 예방의학회지 Vol.54 No.4

Objectives: The workplace is an ideal place for encouraging health-promoting behaviors. Therefore, the aim of the present study was to determine the effect of an empowerment program on the health-promoting behaviors of women workers. Methods: This randomized clinical trial was conducted with 80 women workers employed at a food packaging facility in 2020. The subjects were selected using convenience sampling and were classified into intervention and control groups using block randomization. An empowerment program for women workers was conducted across 6 sessions based on an empowerment model. Data collection tools included a demographic questionnaire and the Health Promoting Lifestyle Profile-II, which participants completed both before the program and 8 weeks after the last session. Data analysis was performed in SPSS version 16 using descriptive analysis and inferential statistics. Results: There were no significant differences between the 2 groups in various health-promoting behaviors before the program. However, the intervention group's scores for nutrition (34.92±1.09 vs. 27.87±4.23), physical activity (24.40±2.94 vs. 17.40±5.03), stress management (26.35±2.60 vs. 23.05±4.27), spiritual growth (34.02±3.00 vs. 30.22±5.40), interpersonal relationships (30.82±2.38 vs. 27.60±4.61), and health responsibility (31.60±2.71 vs. 28.22±4.59) were significantly higher than the control group's 8 weeks after the program had ended. Moreover, there was a significant difference in the total score of health-promoting behaviors for the intervention group compared to the control group (179.00±9.22 vs. 151.42±20.25, p=0.001). Conclusions: An empowerment program for women workers led to significant improvements in the health-promoting behaviors of the participants. Similar programs can ultimately improve women's health in the workplace.

How ICT Affect International Trade, FDI, Growth: Diminishing Marginal Returns of Korea’s ICT on Trade?

Noori Park(박누리) 한국무역학회 2022 무역학자 전국대회 발표논문집 Vol.2022 No.8

Natural Honey Lowers Plasma Glucose, C-Reactive Protein, Homocysteine, and Blood Lipids in Healthy, Diabetic, and Hyperlipidemic Subjects: Comparison with Dextrose and Sucrose

Noori S. Al-Waili 한국식품영양과학회 2004 Journal of medicinal food Vol.7 No.1

Intravenous and Intrapulmonary Administration of Honey Solution to Healthy Sheep:

Noori S. Al-Waili 한국식품영양과학회 2003 Journal of medicinal food Vol.6 No.3

Honey Increased Saliva, Plasma, and Urine Content of Total Nitrite Concentrations in Normal Individuals

Noori S. Al-Waili,Nadir S. Boni 한국식품영양과학회 2004 Journal of medicinal food Vol.7 No.3

Effect of Honey on Antibody Production Against Thymus-Dependent and Thymus-Independent Antigens in Primary and Secondary Immune Responses

Noori S. Al-Waili,Afruz Haq 한국식품영양과학회 2004 Journal of medicinal food Vol.7 No.4

The objective was to study the effect of natural pure honey on the antibody production against thymus-de-pendent antigen [sheep red blood cells (SRBCs)] and thymus-independent antigen (Escherichia coli) in mice. Forty-two mice(mean weight 28.33. 3.44 g) were divided into two groups: group A (21 mice) fed regular diet and group B (21 mice) fedregular diet plus 0.8 g/kg of body weight/day of honey administered in four equally divided doses. Each animal was injectedintraperitoneally with 0.1 mL of 5% SRBCs and 0.1 mL of killed E. coli. The same dose of both antigens was given after 17days. At days 7 and 16 after primary immunization and at day 4 after secondary immunization, blood samples were collectedfrom seven mice at each time interval from group A and group B to estimate antibody titer using the hemoaggulination test.At day 7 after primary immunization, the mean antibody titer against SRBCs was 9.14. 3.02 in group A and 13.7. 3.9 ingroup B (P. .05), while the mean antibody titer against E. coliwas 14.8. 8.5 in group A and 14.8. 9.35 in group B. Atday 16, the mean antibody titer against SRBCs was 13.71. 3.9 in group A and 20. 9.8 in group B, while the mean anti-body titer against E. coliwas 14.69. 935 in group A and 26.67. 8.26 in group B (P. .05). Four days after secondary im-munization, the mean antibody titer against SRBCs was 13.33. 4.62 in group A and 16. 8.7 in group B, while the meanantibody titer against E. coliwas 42.67. 18.4 in group A and 69.33. 31.4 in group B. It might be concluded that oral honeystimulates antibody production during primary and secondary immune responses against thymus-dependent and thymus-independent antigens.