Physicochemical parameters, bioactive compounds and microbial quality of sonicated pear juice

2016 ◽  
Vol 51 (7) ◽  
pp. 1552-1559 ◽  
Author(s):  
Muhammad Saeeduddin ◽  
Muhammad Abid ◽  
Saqib Jabbar ◽  
Bing Hu ◽  
Malik Muhammad Hashim ◽  
...  
2010 ◽  
Vol 8 (4) ◽  
pp. 797-802 ◽  
Author(s):  
Dalia Magana-Ordorica ◽  
Kristina Mena ◽  
Jose B. Valdez-Torres ◽  
Marcela Soto-Beltran ◽  
Josefina Leon-Felix ◽  
...  

Untreated sewage has adversely affected the quality of marine recreational waters worldwide. Exposure to marine recreational water with poor microbial quality may pose a threat to bathers. The objectives of this study were to assess the effect of physicochemical parameters on Cryptosporidium and Giardia presence in marine recreational water of Sinaloa, Mexico, by Logistic Regression Analyses. Thirty-two 10-litre water samples were collected from two tourist beaches, Altata and Mazatlan, between November 2006 and May 2007. Water samples were processed by the EPA 1623 method and pH, temperature, salinity and turbidity were also determined. Cryptosporidium and Giardia were present in 71 and 57% of the samples collected from Altata, respectively. In Mazatlan, Cryptosporidium and Giardia were found in 83 and 72% of the samples, respectively. The overall concentration of Cryptosporidium ranged from 150 to 2,050 oocysts/10 L with an average of 581 oocysts/10 L and Giardia ranged from 10 to 300 cysts/10 L with an average of 73 cysts/10 L. The occurrence of both parasites increased in water with decreasing temperatures and increasing turbidity of the water.


2017 ◽  
Vol 42 (2) ◽  
pp. e13507 ◽  
Author(s):  
Rana Muhammad Aadil ◽  
Xin‐An Zeng ◽  
Zhong Han ◽  
Amna Sahar ◽  
Anees Ahmed Khalil ◽  
...  

2020 ◽  
Vol 70 (1) ◽  
pp. 35-44 ◽  
Author(s):  
Agata Czyżowska ◽  
Kinga Siemianowska ◽  
Monika Śniadowska ◽  
Agnieszka Nowak

2015 ◽  
Vol 109 ◽  
pp. 120-129 ◽  
Author(s):  
A.P. Vale ◽  
J. Santos ◽  
N.V. Brito ◽  
C. Marinho ◽  
V. Amorim ◽  
...  

2015 ◽  
Vol 172 ◽  
pp. 650-656 ◽  
Author(s):  
Héctor E. Martínez-Flores ◽  
Ma. Guadalupe Garnica-Romo ◽  
Daniela Bermúdez-Aguirre ◽  
Prashant Raj Pokhrel ◽  
Gustavo V. Barbosa-Cánovas

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
B Benedek ◽  
K Rothwangl-Wiltschnigg ◽  
E Rozema ◽  
N Gjoncaj ◽  
G Reznicek ◽  
...  

1986 ◽  
Vol 18 (7-8) ◽  
pp. 257-265 ◽  
Author(s):  
K. Kawamura ◽  
M. Kaneko

In order to evaluate the microbial quality of human wastes and effluents from treatment processes, the microbial flora of samples was examined. Total coliforms, fecal coliforms and fecal streptococci were used as indicator micro-organisms, and Vibrio cholerae non O-1, Salmonella, Staphylococcus aureus and Welchii (Clostridium perfrigens) were selected as pathogenic organisms. Salmonella was detected in only the water samples from the night soil treatment plant, while Staphylococcus aureus was detected in the night soil and the samples from the night soil purification tanks. Vibrio cholerae non 0-1 was not detected in any samples, but Welchii existed in almost all samples. Generally, the density levels and distribution patterns of the indicator micro-organisms were similar to those in the raw wastewaters. The microbial flora was not changed remarkably after the primary sedimentation process and the biological treatment process. After the chlorination process, total colonies, spore-forming bacteria, Welchii, moulds and fecal streptococci could survive, and spore-forming bacteria formed the majority of the total colonies in the well-chlorinated effluents. Welchii at the level of 103/100 ml can be used as the indicator micro-organism to ensure a sanitary safe discharge, because it can survive at the level of 103−104/100 ml even if other indicators and pathogenic micro-organisms are inactivated completely by the chlorination process.


2021 ◽  
Author(s):  
Fatemeh Mohajer ◽  
Saeid Khanzadi ◽  
Kobra Keykhosravy ◽  
Seyyed Mohammad Ali Noori ◽  
Mohammad Azizzadeh ◽  
...  

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 354
Author(s):  
Jaime A. Arboleda Mejia ◽  
Jorge Yáñez-Fernandez

In this study, fresh orange prickly pear juice (Opuntia spp.) was clarified by a cross-flow microfiltration (MF) process on a laboratory scale. The viability of the process—in terms of productivity (permeate flux of 77.80 L/h) and the rejection of selected membranes towards specific compounds—was analyzed. The quality of the clarified juice was also analyzed for total antioxidants (TEAC), betalains content (mg/100 g wet base), turbidity (NTU) and colorimetry parameters (L, a*, b*, Croma and H). The MF process permitted an excellent level of clarification, reducing the suspended solids and turbidity of the fresh juice. In the clarified juice, a decrease in total antioxidants (2.03 TEAC) and betalains content (4.54 mg/100 g wet basis) was observed as compared to the fresh juice. Furthermore, there were significant changes in color properties due to the effects of the L, a*, b*, C and h° values after removal of turbidity of the juice. The turbidity also decreased (from 164.33 to 0.37 NTU).


2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Saliha Mebarki ◽  
Benali Kharroubi ◽  
Mohammed Amin Kendouci

AbstractIn arid areas, the pressure on water resources and in particular on groundwater resources is on the rise, mainly due to increasing demand and the deterioration of water quality. In this context, the present work aims to follow the annual evolution, between 2009 and 2019 of the physicochemical parameters, and to evaluate the quality of groundwater of the region of Mougheul, by determining the data of pH, TDS, conductivity and the concentrations of major ions ( Ca+2, Mg+2, Na+, K+, Cl−, HCO3−, SO4−2, NO3−) of 07 water points. The results revealed that all the levels of the physicochemical parameters do not exceed the WHO potability standards, except high values were observed at the level of well W6 which exceeds the limits recommended by the WHO (50 mg /l). The diagram of Schöeller and Berkaloff shows that the groundwater has the bicarbonate magnesium facies. The representation of the data on the Piper triangular diagram shows that W6 has the facies chlorinated and calcium sulfate and magnesium and the other water points have the facies bicarbonate calcium and magnesium. SAR values show that the groundwater of Mougheul is excellent for irrigation. The classification according to the Wilcox diagram shows that the groundwater of Mougheul in general is good quality, but the well of W6 water is suitable for irrigation and requires monitoring the evolution of salinity.


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