scholarly journals Detergent properties of aqueous extract of Aatreelal (Ammi majus L.) and Babchi (Psoralea corylifolia L.)

2021 ◽  
pp. 169-179
Author(s):  
Sabiha Manzoor ◽  
Nasreen Jahan ◽  
Ajij Ahmed Shaikh
Keyword(s):  
Surface Tension ◽  
Aqueous Extract ◽  
Foaming Properties ◽  
Lauryl Sulfate ◽  
Psoralea Corylifolia ◽  
Standard Drug ◽  
Wetting Ability ◽  
Surface Tension Reduction ◽  
Natural Surfactant ◽  
Ammi Majus

Aim of the study: To evaluate the detergent activity of aqueous extract of Ammi majus L. and Psoralea corylifolia L. Materials and methods: The detergent activity of aqueous extract of test drugs was evaluated by using a standard physicochemical test with Sodium lauryl sulfate (SLS) as a standard drug. Surface tension was measured by Du Nouytensiometer; Dirt dispersion by using Indian ink; Cleaning ability by greasy wool yarn test; Foaming properties by cylinder shake method and Wetting ability by canvas disc method. pH values and total saponin was also determined. Both the test and standard drugs were analyzed in 1% and 5% concentrations. Results: The aqueous extract of both the test drugs produced a significant detergent effect at both the concentration but less than SLS as it exhibited a pronounced effect in all the parameters except detergency. The test drugs were found to be acidly balanced; exhibited a prominent surface tension reduction, high foaming, wetting, and cleaning ability with a good quantity of saponin. Conclusions: Based on the above results it can be concluded that the aqueous extract of test drugs has significant surface-active properties thus these drugs can be used as a natural surfactant.

Study of Surface Tension and Natural Evaporation of Aqueous Surfactant Solutions

2018 ◽  
Author(s):  
Birce Dikici ◽  
Matthew J. Lehman
Keyword(s):  
Surface Tension ◽  
Natural Convection ◽  
Water Loss ◽  
Heat Dissipation ◽  
Eastern Africa ◽  
Working Fluid ◽  
Lauryl Sulfate ◽  
Surfactant Solutions ◽  
Eastern Australia ◽  
Wilhelmy Plate Method

Surface tension and solution evaporation of aqueous solutions of sodium lauryl sulfate (SLS), ECOSURF™ EH-14, and ECOSURF™ SA-9 under natural convection is examined through experimental methods. SLS is an anionic surfactant while EH-14 and SA-9 are environmentally-friendly nonionic surfactants. Surfactants are known to affect evaporation performance of solutions and are studied in relation to water loss prevention and heat dissipation. Surfactants could be useful under drought conditions which present challenges to water management on a yearly basis in arid areas of the world. Recent water scarcity in the greater Los Angeles area, south eastern Africa nations, eastern Australia and eastern Mediterranean countries has high cost of water loss by evaporation. Surfactants are studied as a potential method of suppressing evaporation in water reservoirs. Surfactants are also studied as performance enhancers for the working fluid of heat dissipation devices, such as pulsating heat pipes used for electronics cooling. Some surfactants have been shown to lower thermal resistances and friction pressure in such devices and thereby increase their efficiency. The static surface tensions of the aqueous-surfactant solutions are measured with surface tensiometer using Wilhelmy plate method. The surfactants are shown to lower surface tension significantly from pure water. The surface tension values found at the Critical Micelle Concentration are 33.8 mN/m for SLS, 30.3 mN/m for EH-14, and 30.0 mN/m for SA-9. All three surfactants reduced natural convection water loss over 5 days with SLS showing the greatest effect on evaporation rates. The maximum evaporation reduction by each surfactant from distilled water with no surfactants after 5 days is 26.1% for SLS, 20.8% for EH-14, and 18.4% for SA-9.

scholarly journals EVALUATION OF ANTI-OBESITY EFFECT OF AQUEOUS EXTRACT OF MUCUNA PRURIENS SEEDS ON RATS

2017 ◽  
Vol 9 (3) ◽  
pp. 111
Author(s):  
Javid Mansuri ◽  
Archana Paranjape
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Aqueous Extract ◽  
Density Lipoprotein ◽  
Mucuna Pruriens ◽  
Control Group ◽  
Dopamine Level ◽  
Sprague Dawley ◽  
Brain Dopamine ◽  
Standard Drug

Objective: Evaluation of the anti-obesity effect of aqueous extract of Mucuna pruriens seeds on rats.Methods: Male Sprague-Dawley (SD) rats were subjected to high-fat diet (HFD) for 12 wk. L-DOPA (12.5 mg/kg, p. o.) as standard drug and aqueous extract of Mucuna pruriens (AEMP) seeds (200 mg/kg, p. o. and 400 mg/kg, p. o.) as test drugs were administered in last 4 wk along with HFD. Body weight, food intake, body mass index (BMI), serum total cholesterol (TC), triglyceride (TG) and high-density lipoprotein (HDL) levels were measured at the end of fourth, eighth and twelfth wk, while white adipose tissue (WAT) mass and brain dopamine levels were measured at the end of the twelfth wk.Results: AEMP (200 mg/kg, p. o.) and (400 mg/kg, p. o.) treated groups showed a significant decrease in food intake and weight gain without altering BMI. Moreover, TG levels were lower in treated groups as compared to the HFD group, but no significant changes were observed in TC and HDL levels. L-DOPA-treated group showed a significant decrease in body weight, food intake, BMI and WAT. Both AEMP and L-DOPA-treated groups showed an increase in brain dopamine levels as compared to disease control group (p<0.05).Conclusion: L-DOPA and AEMP showed anti-obesity activity by reducing body weight gains, food intake and WAT weights; modulating TG with increased brain dopamine level which correlates to the inhibitory action of dopamine on reward mechanism. 

Dynamic surface tension of natural surfactant extract under superimposed oscillations

2011 ◽  
Vol 44 (1) ◽  
pp. 156-163 ◽  
Author(s):  
Prasika I. Reddy ◽  
Ahmed M. Al-Jumaily ◽  
Geoff T. Bold
Keyword(s):  
Surface Tension ◽  
Dynamic Surface Tension ◽  
Dynamic Surface ◽  
Natural Surfactant

scholarly journals Tamarix dioica (Ghaz) Protective Potential in the Carbon Tetrachloride-Induced Hepatotoxicity Animal Model

2021 ◽  
Vol 35 (3) ◽  
pp. 37-43
Author(s):  
Sumra Komal
Keyword(s):  
Body Weight ◽  
Aqueous Extract ◽  
Liver Damage ◽  
Liver Diseases ◽  
High Dose ◽  
Standard Drug ◽  
Methanolic Extracts ◽  
Hepatic Diseases ◽  
Group I ◽  
Group 2

Introduction: Hepatic diseases remain the leading cause of death worldwide. Despite overall advancements in health care, mortality due to hepatic diseases is constantly growing. More than 2 million people globally are estimated to die each year from liver diseases, and current treatment offers little for its management. Thus, it is essential to find more effective and less toxic pharmaceutical alternatives for the treatment of liver diseases. Aims & Objectives: Tamarix dioica, a shrub broadly used in herbal medicine for the treatment and prevention of various diseases. The current study was designed to analyze the hepatoprotective effect of T. dioica in BALB?cmice against CCl4-induced acute liver damage. Place and duration of study: The study was conducted in NIH, Islamabad, Pakistan, for six months in 2016-2017. Material & Methods: For in vivo evaluation, the animals (n= 42) were randomly divided into seven groups (n=6), three control (i.e. Group, I or normal control, group II or induction control received 0.9% normal saline orally, and Group III or positive control received silymarin 100 mg/kg per oral), and four treatment groups (i.e. IV, V,VI and VII were treated with oral T.dioica 200 mg/kg/day, 300mg/kg/day methanol extract, 200mg/kg/day and 300mg/kg/day of aqueous extracts respectively for six days, followed by intraperitoneal administration of CCl4 on the seventh day. The blood samples were collected for analysis of LFTs, and hepatic tissue was taken for histological analysis. Data was analyzed using SPSS version 16, one-way ANOVA with Duncan’s Multiple Range Test (DMRT). Results: CCl4 induction in Group 2 resulted in severe hepatic derangement manifested as highly elevated mean LFTs (ALT 7245.56, AST 3292.11, ALP 340.09 U/L, bilirubin 4.64 mg/dl) as compared to healthy controls (ALT 38.97, AST 50.20, ALP 57.17 U/L, bilirubin 1.25 mg/dl: (Group 1) levels p<0.001. Pretreatment with different extracts of T.dioica for 6 days before CCl4 administration produced varying degrees of hepatoprotection. 300mg/kg aqueous extract T.dioica (Group7) prevented damage with maximal hepatoprotection, reduced LFTs (ALT: 339.95 , AST: 242.90 , ALP: 116.86 U/L, bilirubin: 1.38 mg/dl) and normalized liver histology as compared to Group 2 and standard drug silymarin 100mg/kg, (ALT: 6483.23, AST: 2567.69, ALP: 272.19 U/L, bilirubin: 2.84 mg/dl: Group 3) p<0.001. Lesser hepatoprotection was provided by T.dioica aqueous extract 200mg/kg (ALT: 439.93, AST: 367.87, ALP: 180.62 U/L bilirubin: 1.53 mg/dl: Group VI) and least by 300mg/kg & 200mg/kg methanolic extracts Groups V & IV (ALT: 6338.06, 6443.91, AST: 2800.81, 3012.34, ALP: 242, 248 U/L & bilirubin: 2.82 & 3.62 mg/dl) respectively. Further, no drug-induced toxicity symptoms were observed 24 hours after administration of the high dose oral T. dioica 2000 mg/kg/body weight aqueous and methanolic extracts were administered. Conclusion: Pretreatment with T. dioica extracts especially 300mg/kg aqueous extract reduced acute CCl4-mediated liver damage, ameliorated histopathological as well as biochemical parameters and was free of toxicity in 2000mg/kg /body weight dose in the mice experimental model. T. dioica has potential in hepatoprotective drug research.

scholarly journals Investigation about wetting ability (surface tension) of water used for preparation of pesticide solutions

2021 ◽  
Vol 117 (3) ◽  
pp. 1
Author(s):  
Donyo Hristov GANCHEV
Keyword(s):  
Surface Tension ◽  
Water Source ◽  
Lower Surface ◽  
Flow Rates ◽  
Wetting Ability ◽  
Lower Resistance ◽  
Wax Content ◽  
Lower Surface Tension ◽  
Plant Surfaces

<p class="042abstractstekst">The investigation about surface tension of water used for preparation of pesticide solutions reveals it is quite diverse and changeable without any logical correlation towards location, time, and type of water source. Moreover, spraying with solutions with lower surface tension give bigger flow rates due to the lower resistance of fluid to the nozzles. The conducted trials show that plant surfaces with more rough texture require to be sprayed with pesticide solutions with lower surface tension. The wax content of the surfaces has no significant impact on surface tension requirement.</p><p> </p>

scholarly journals Antinociceptive effect of Pleurotus ostreatus (Oyster Mushroom) Aqueous Extracts in Rattus norvegicus (Albino Rats)

1970 ◽  
Vol 20 (2) ◽  
pp. 483-487
Author(s):  
LF Zitte ◽  
RS Konya
Keyword(s):  
Aqueous Extract ◽  
Rattus Norvegicus ◽  
Pleurotus Ostreatus ◽  
Hot Water ◽  
Oyster Mushroom ◽  
Albino Rats ◽  
Thermal Stimulus ◽  
Aqueous Extracts ◽  
Standard Drug ◽  
Nociceptive Responses

Antinociceptive is reducing sensitivity to painful stimuli for the individual. The objective of this study was to evaluate the antinociceptive potentials of graded doses of Pleurotus ostreatus (Oyster Mushroom) aqueous extract in Rattus norvegicus (Albino Rats) and its chemical pattern by comparing it with a standard drug and a control using the hot water based flick tail test. Thirty five adult rats of both sexes were used for the experiment which, were divided into five groups of seven rats per group. Group one was used as the control (with 1ml normal saline), while groups two, three and four were treated with 100, 200 and 400 mg/kg of Pleurotus ostreatus aqueous extracts and group five treated with 15 mg/kg Aspirin (a standard drug) as positive control. Hot water at 550C was used to determine the nociceptive responses of the animals to detect anti-nociceptive effects of Pleurotus ostreatus extracts as compared to the control in hot water inflicted pain. The results suggested that Pleurotus ostreatus aqueous extract exhibits antinociceptive properties against thermal stimulus at 550C. The diversity of individual animals’ pain tolerance threshold when immersed in hot water was also observed during the experiment. However, the extract indicated a high degree of anti-nociceptive effect at 30, 60, 90 and 120 minutes post treatment period, with a progressively longer threshold time for pain sensitivity. It was also found that at 90 minute period, the control portrayed a relatively short response time.KEY WORDS: Anti-nociceptive, threshold pain, Pleurotus ostreatus, hot water test flick tail.

scholarly journals Evaluation of hepatoprotective potential of aqueous extract of Withania somnifera in albino rats

2021 ◽  
Vol 10 (3) ◽  
pp. 255
Author(s):  
Monica Sharma ◽  
Anand Gaur ◽  
Pinki Vishwakarma ◽  
Raj Kumar Goel ◽  
K. K. Saxena
Keyword(s):  
Aqueous Extract ◽  
Withania Somnifera ◽  
Work Force ◽  
Hepatoprotective Activity ◽  
Albino Rats ◽  
Standard Drug ◽  
Hepatic Diseases ◽  
Organ Systems ◽  
Herbal Plant ◽  
Biochemical Examination

Background: Hepatic diseases are a major cause of morbidity and disability of work force throughout the world. The treatment of hepatic diseases with standard drugs poses the risk of toxicity on various organ systems. Withania somnifera, a herbal plant has been claimed to be effective in the treatment of various types of hepatic conditions. The present study was undertaken to explore the hepatoprotective activity of aqueous extract of Withania somnifera (AEWS) in experimentally induced hepatotoxicity in albino rats.Methods: The study was commenced after obtaining approval from institutional animal ethical committee using AEWS leaves in Albino wistar rats (150-200 gm) of either sex. The hepatoprotective activity was evaluated using biochemical examination. The animals were divided into five groups of six animals each. In each experiment, first group was given normal saline (1 ml/kg/day), second group was injected with toxin CCl4 (1 ml/kg) i.p only once to produce hepatotoxicity, third and fourth groups were given Withania somnifera orally (500 mg/kg and 1000 mg/kg) (respectively), as a single dose per orally every morning and fifthgroup was given standard drug Liv-52 (1 mg/kg).Results: Aqueous extract of Withania somnifera leaves in oral dose exhibited significant hepatoprotective effect in all models used in this study.Conclusions: It can be concluded from our study that aqueous extract of Withania somnifera leaves possesses hepatoprotective activity.

Influence of pH on the surface and foaming properties of aqueous silk fibroin solutions

Soft Matter ◽  
2020 ◽  
Vol 16 (15) ◽  
pp. 3695-3704 ◽  
Author(s):  
Xiuying Qiao ◽  
Reinhard Miller ◽  
Emanuel Schneck ◽  
Kang Sun
Keyword(s):  
Surface Tension ◽  
Silk Fibroin ◽  
Bubble Coalescence ◽  
Foaming Properties ◽  
Water Interface ◽  
Interfacial Layers ◽  
Air Water Interface ◽  
Influence Of Ph

Silk fibroin (SF) adsorbs at the air/water interface, reduces the surface tension, and forms interfacial layers suppressing bubble coalescence and stabilizing foam.

scholarly journals Modeling CCN activity of chemically unresolved model HULIS, including surface tension, non-ideality, and surface partitioning

2018 ◽  
Author(s):  
Nonne L. Prisle ◽  
Bjarke Molgaard
Keyword(s):  
Surface Tension ◽  
Water Activity ◽  
Cloud Droplet ◽  
Tension Reduction ◽  
Surface Tension Reduction ◽  
Surface Partitioning ◽  
Critical Supersaturation ◽  
Surface Active ◽  
Droplet Activation ◽  
Ccn Activity

Abstract. Cloud condensation nuclei (CCN) activity of aerosol particles comprising surface active Nordic Aquatic Fulvic Acid (NAFA) and NaCl was modeled with four different approaches to account for NAFA bulk-to-surface partitioning and the combined influence of NAFA and NaCl on surface tension and water activity of activating droplets. Calculations were made for particles with dry diameters of 30–230 nm and compositions covering the full range of relative NAFA and NaCl mixing ratios. Continuous ternary parametrizations of aqueous surface tension and water activity with respect to independently varying NAFA and NaCl mass concentrations were developed from previous measurements on macroscopic bulk solutions and implemented to a Köhler model framework. This enabled comprehensive thermodynamic predictions of cloud droplet activation, including equilibrium surface partitioning, for particles comprising chemically unresolved organic NAFA mixtures. NAFA here serves as a model for surface active atmospheric humic-like substances (HULIS) and for chemically complex organic aerosol in general. Surfactant effects are gauged via predictions of a suite of properties for activating droplets, including critical supersaturation and droplet size, bulk phase composition, surface tension, Kelvin effect, and water activity. Assuming macroscopic solution properties for activating droplets leads to gross overestimations of reported experimental CCN activation, mainly by overestimating surface tension reduction from NAFA solute in droplets. Failing to account for bulk-to-surface partitioning of NAFA introduces severe biases in evaluated droplet bulk and surface composition and critical size, which here specifically affect cloud activation thermodynamics, but more generally could also impact heterogeneous chemistry on droplet surfaces. Model frameworks based on either including surface partitioning and/or neglecting surface tension reduction give similar results for both critical supersaturation and droplet properties and reproduce reported experimental CCN activity well. These perhaps counterintuitive results reflect how the bulk phase is nearly depleted in surface active organic from surface partitioning in submicron droplets with large surface area for a given bulk volume. As a result, NAFA has very little impact on surface tension and water activity at the point of droplet activation. In other words, the predicted surfactant strength of NAFA is significantly lower in sub-micron activating droplets than in macroscopic aqueous solutions of the same overall composition. These results show similar effects of chemically complex surfactants as have previously been seen only for simple surfactants with well-defined molecular properties and add to the growing appreciation of the complex role of surface activity in cloud droplet activation.

Sign in / Sign up

Export Citation Format

Share Document