<span style="font-family:Verdana;">Because of various disadvantages of chemical synthesis processes, these</span><span> </span><span style="font-family:Verdana;">days ...<span style="font-family:Verdana;">Because of various disadvantages of chemical synthesis processes, these</span><span> </span><span style="font-family:Verdana;">days people are attracting towards green synthesis processes as it is devoid of toxic by-products, cost-effective and eco-friendly. In this study, a simple green synthesis method is applied for the synthesis of magnetite (Fe</span><sub><span style="vertical-align:sub;font-family:Verdana;">3</span></sub><span style="font-family:Verdana;">O</span><sub><span style="vertical-align:sub;font-family:Verdana;">4</span></sub><span style="font-family:Verdana;">) nanoparticles (MNPs) by co-precipitation of FeCl</span><sub><span style="vertical-align:sub;font-family:Verdana;">3·</span></sub><span style="font-family:Verdana;">6H</span><sub><span style="vertical-align:sub;font-family:Verdana;">2</span></sub><span style="font-family:Verdana;">O and FeSO</span><sub><span style="vertical-align:sub;font-family:Verdana;">4·</span></sub><span style="font-family:Verdana;">7H</span><sub><span style="vertical-align:sub;font-family:Verdana;">2</span></sub><span style="font-family:Verdana;">O in the molar ratio of 2:1 using </span><span><i></i></span><i><span style="font-family:Verdana;">Azadirachta indica</span><span></span></i><span style="font-family:Verdana;"> leaves extract under nitrogen environment. FTIR, XRD, SEM etc. were used to characterize the synthesized MNPs. Batch adsorption experiments were carried out to determine adsorption equilibrium of As(V) as a function of pH, adsorbent dose, contact time and different initial concentrations. Kinetics results were best describe</span><span style="font-family:Verdana;">d</span><span style="font-family:Verdana;"> by pseudo-second order model with rate constant value 0.0052 g/(mg·min). The equilibrium adsorption isotherm was best fitted with Langmuir adsorption isotherm model. The maximum adsorption capacity was found to be 62.89 mg/g at pH 2. MNPs showed </span><span style="font-family:Verdana;">a </span><span style="font-family:Verdana;">high affinity for As(V) and avoids filtration for solid-liquid separation, thus it would be employed as a promising material </span><span style="font-family:Verdana;">for </span><span style="font-family:Verdana;">the removal of As(V) from water.</span>展开更多
Objective:To examine the antidiarrhoeal activity of alcoholic and aqueous seed kernel extract of Mangifera indica(M.indica) on castor oil-induced diarrhoeul activity in Swiss albino mice.Methods:Mango seed kernels wer...Objective:To examine the antidiarrhoeal activity of alcoholic and aqueous seed kernel extract of Mangifera indica(M.indica) on castor oil-induced diarrhoeul activity in Swiss albino mice.Methods:Mango seed kernels were processed and extracted using alcohol and water. Antidiarrhoeal activity of the extracts were assessed using intestinal motility and faecal score methods.Results:Aqueous and alcoholic extracts of M.indica significantly reduced intestinal motility and faecal score in Swiss albino mice.Conclusions:The present study shows the traditional claim on the use of M.indica seed kernel for treating diarrhoea in Southern parts of India.展开更多
The effect of the application of ethanolic extract of “Haden” mango seeds to increase the antioxidant and antimicrobial capacity of fresh-cut mango flesh was evaluated. Phenolic HPLC analysis revealed that gallic ac...The effect of the application of ethanolic extract of “Haden” mango seeds to increase the antioxidant and antimicrobial capacity of fresh-cut mango flesh was evaluated. Phenolic HPLC analysis revealed that gallic acid was the major identified compound in the ethanolic extract (586.68 mg/g). Fresh-cut mango was treated for immersion within the ethanolic extract, packed and stored at 5℃ during 15 days. The content of phenolic compounds, antioxidant capacity and microbial growth of the treated mango were evaluated during the storage. Compared with the controls the treated fruit presented the highest content of the total phenolic (7.4 times), flavonoids (3.1 times), and antioxidant capacity DPPH·, TEAC and ORAC (2.9, 2.3 and 2.8 times, respectively), and showed a microbial reduction of 80% of mesophilic plate count and 97% of total molds. This study demonstrates the potential of phenolic compounds derived from mango seed as antimicrobials and antioxidants.展开更多
文摘<span style="font-family:Verdana;">Because of various disadvantages of chemical synthesis processes, these</span><span> </span><span style="font-family:Verdana;">days people are attracting towards green synthesis processes as it is devoid of toxic by-products, cost-effective and eco-friendly. In this study, a simple green synthesis method is applied for the synthesis of magnetite (Fe</span><sub><span style="vertical-align:sub;font-family:Verdana;">3</span></sub><span style="font-family:Verdana;">O</span><sub><span style="vertical-align:sub;font-family:Verdana;">4</span></sub><span style="font-family:Verdana;">) nanoparticles (MNPs) by co-precipitation of FeCl</span><sub><span style="vertical-align:sub;font-family:Verdana;">3·</span></sub><span style="font-family:Verdana;">6H</span><sub><span style="vertical-align:sub;font-family:Verdana;">2</span></sub><span style="font-family:Verdana;">O and FeSO</span><sub><span style="vertical-align:sub;font-family:Verdana;">4·</span></sub><span style="font-family:Verdana;">7H</span><sub><span style="vertical-align:sub;font-family:Verdana;">2</span></sub><span style="font-family:Verdana;">O in the molar ratio of 2:1 using </span><span><i></i></span><i><span style="font-family:Verdana;">Azadirachta indica</span><span></span></i><span style="font-family:Verdana;"> leaves extract under nitrogen environment. FTIR, XRD, SEM etc. were used to characterize the synthesized MNPs. Batch adsorption experiments were carried out to determine adsorption equilibrium of As(V) as a function of pH, adsorbent dose, contact time and different initial concentrations. Kinetics results were best describe</span><span style="font-family:Verdana;">d</span><span style="font-family:Verdana;"> by pseudo-second order model with rate constant value 0.0052 g/(mg·min). The equilibrium adsorption isotherm was best fitted with Langmuir adsorption isotherm model. The maximum adsorption capacity was found to be 62.89 mg/g at pH 2. MNPs showed </span><span style="font-family:Verdana;">a </span><span style="font-family:Verdana;">high affinity for As(V) and avoids filtration for solid-liquid separation, thus it would be employed as a promising material </span><span style="font-family:Verdana;">for </span><span style="font-family:Verdana;">the removal of As(V) from water.</span>
文摘Objective:To examine the antidiarrhoeal activity of alcoholic and aqueous seed kernel extract of Mangifera indica(M.indica) on castor oil-induced diarrhoeul activity in Swiss albino mice.Methods:Mango seed kernels were processed and extracted using alcohol and water. Antidiarrhoeal activity of the extracts were assessed using intestinal motility and faecal score methods.Results:Aqueous and alcoholic extracts of M.indica significantly reduced intestinal motility and faecal score in Swiss albino mice.Conclusions:The present study shows the traditional claim on the use of M.indica seed kernel for treating diarrhoea in Southern parts of India.
文摘The effect of the application of ethanolic extract of “Haden” mango seeds to increase the antioxidant and antimicrobial capacity of fresh-cut mango flesh was evaluated. Phenolic HPLC analysis revealed that gallic acid was the major identified compound in the ethanolic extract (586.68 mg/g). Fresh-cut mango was treated for immersion within the ethanolic extract, packed and stored at 5℃ during 15 days. The content of phenolic compounds, antioxidant capacity and microbial growth of the treated mango were evaluated during the storage. Compared with the controls the treated fruit presented the highest content of the total phenolic (7.4 times), flavonoids (3.1 times), and antioxidant capacity DPPH·, TEAC and ORAC (2.9, 2.3 and 2.8 times, respectively), and showed a microbial reduction of 80% of mesophilic plate count and 97% of total molds. This study demonstrates the potential of phenolic compounds derived from mango seed as antimicrobials and antioxidants.