Impact of conventional/non-conventional extraction methods on the untargeted phenolic profile of Moringa oleifera leaves

2019 ◽  
Vol 115 ◽  
pp. 319-327 ◽  
Author(s):  
Gabriele Rocchetti ◽  
Francesca Blasi ◽  
Domenico Montesano ◽  
Silvia Ghisoni ◽  
Maria Carla Marcotullio ◽  
...  
Keyword(s):  
Moringa Oleifera ◽  
Extraction Methods ◽  
Phenolic Profile ◽  
Moringa Oleifera Leaves ◽  
Conventional Extraction

scholarly journals Effects of Ultrasound-Assisted Extraction and Solvent on the Phenolic Profile, Bacterial Growth, and Anti-Inflammatory/Antioxidant Activities of Mediterranean Olive and Fig Leaves Extracts

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1718 ◽  
Author(s):  
Cristina Alcántara ◽  
Tihana Žugčić ◽  
Radhia Abdelkebir ◽  
Jose V. García-Pérez ◽  
Anet Režek Jambrak ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Bacterial Growth ◽  
Extraction Methods ◽  
Olive Leaves ◽  
Ultrasound Assisted Extraction ◽  
Phenolic Profile ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Conventional Extraction ◽  
Anti Inflammatory

Mediterranean plants, such as fig and olive leaves, are well-known to exert beneficial effects in humans because of the presence of a wide range of bioactive compounds. However, scarce information regarding the impact of extraction methods, such as ultrasound and types of solvents, on their profile of antioxidant and anti-inflammatory compounds is provided. In addition, no information is available on the effects of extraction methods and solvents on the inhibition of pathogenic bacteria or promoting probiotic growth. In this scenario, this study was aimed to study the effects of ultrasound-assisted extraction (UAE) and solvent on the phenolic profile (Triple TOF-LC-MS/MS), antioxidant and anti-inflammatory compounds of olive and fig leaves. Results showed that UAE extracted more carotenoids compared to conventional extraction, while the conventional extraction impacted on higher flavonoids (olive leaves) and total phenolics (fig leaves). The antioxidant capacity of aqueous extract of fig leaves was three times higher than the extract obtained with ethanol for conventional extraction and four times higher for UAE. In general terms, hydroethanolic extracts presented the highest bacterial growth inhibition, and showed the highest anti-inflammatory activity. In conclusion, these side streams can be used as sources of bioactive compounds for further development of high-added-value products.

Screening for Anti-Diabetic Peptides from Moringa oleifera leaves

2021 ◽  
pp. 5886-5890
Author(s):  
Thiruchelvi. R ◽  
Priyadharshini. S ◽  
Rajakumari K.
Keyword(s):  
Moringa Oleifera ◽  
Protein Extraction ◽  
Extraction Methods ◽  
Clinical Syndrome ◽  
Yeast Cells ◽  
Diabetic Patients ◽  
Small Peptides ◽  
Small Proteins ◽  
Uptake Assay ◽  
Moringa Oleifera Leaves

Moringa oleifera commonly called as Drumstick tree is a multipurpose tree and it is widely present in the places like India, Asia, Africa, etc. Its leaves are emetic and their juices are used for medicinal purposes. Diabetes mellitus is a clinical syndrome with insufficient insulin secretion and abnormal glucose tolerance. It is a group of diseases which results in too much sugar in the blood. Leaves from Moringa oleifera were collected, analysed for their anti- diabetic activity. First the proteins are extracted using protein extraction methods, estimated using Lowry’s method, and then anti- diabetic activity was checked using Glucose uptake assay by yeast cells, where the plant extract (small proteins) was able to uptake glucose. SDS-PAGE was carried out to check the protein’s size and molecular weight. The characterization of Moringa oleifera conducted in this study shows that the small peptides from the leaves of this plant can contribute significantly in the daily recommended intake of it, since it serves as a rich source of all minerals, vitamins etc. This study has confirmed that the small peptides from the leaves of M.oleifera can fight against diabetics and the result indicated that Murungai (Moringa) leaves are suitable source of green leaf to reduce the diabetic complications in diabetic patients.

scholarly journals OPTIMASI METODE EKSTRAKSI KUERSETIN DARI DAUN KELOR (Moringa oleifera L.)

Jurnal Kimia ◽  
2020 ◽  
pp. 19
Author(s):  
N. P. L. Laksmiani ◽  
I W. A. Widiantara ◽  
K. D. Adnyani ◽  
A. B. S. Pawarrangan
Keyword(s):  
Qualitative Analysis ◽  
Extraction Method ◽  
Moringa Oleifera ◽  
Extraction Methods ◽  
Polyphenol Compounds ◽  
Moringa Oleifera Leaves ◽  
Method Optimization

Moringa plants is very abundant in Indonesia. Moringa leaves are a source of polyphenol compounds, namely flavonoids. One of the main flavonoids found in Moringa leaves is quercetin. To be able to increase the concentration of quercetin from moringa plants, extraction is necessary. This study aims to determine the most optimal extraction method in extracting quercetin from Moringa leaves. Optimization of quersein extraction methods from Moringa leaves was carried out using maceration, soxhletation, and reflux methods. The solvent used was methanol acidified with 1,2 N HCl. Determination of the concentration of quercetin in the extract used a validated TLC-densitometry method. The highest rendement obtained from the maceration extraction method was 24.08 % w/w. Extraction by reflux and sochletation methods yielded rendement of 23.44 % w/w and 10.12 % w/w respectively. Qualitative analysis of quercetin in the extract was carried out by comparing its Rf value with the standard quercetin which is 0,4. The quercetin level of the extract from maceration extraction was the highest, which was 24.45 % w/w. Extraction using the soxhletation method obtained quercetin as much as 20.95 % w/w.   Keywords: quercetin, Moringa oleifera leaves, extraction method, optimization

scholarly journals OPTIMIZATION SEQUENTIAL MICROWAVE ULTRASONIC ASSISTED EXTRACTION TO EXTRACT POLYPHENOL FROM MORINGA OLEIFERA LEAVES USING MULTIRESPONSE SURFACE METHODOLOGY

2021 ◽  
Vol 9 (5) ◽  
pp. 444-451
Author(s):  
G. Restu Prinanda ◽  
◽  
Aji Prasetyaningrum ◽  
Wahyudi a ◽  
Dwi Purwati ◽  
...  
Keyword(s):  
Moringa Oleifera ◽  
Extraction Process ◽  
Extraction Methods ◽  
Extraction Time ◽  
Total Phenolic ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Moringa Oleifera Leaves ◽  
Speed Up ◽  
Ultrasonic Assisted Extraction

Moringa leaves contain phenolic compounds and flavonoids which are useful as antioxidants. The disadvantages of traditional extraction methods, such as maceration, include a lengthy extraction process and the use of excessive solvent. Therefore, in this study, moringa leaf extraction was carried out using sequential microwave ultrasonic-assisted extraction (MUAE) to speed up the extraction time, and get more yields. This study aimed to improve the extraction of Moringa leaves with MUAE by adjusting the extraction time, temperature, and ethanol percentage. The conditions varied at extraction time (0, 10, 15, 20, 30 minutes), temperature (30, 40, 50, 60, 80 oC), and ethanol concentration (0, 30, 50, 70, 90%). The findings revealed that the best conditions for extraction Moringa leaves with sequential microwave-ultrasonic assisted extraction were at a time of 15 minutes, a temperature of 55oC, and an ethanol percentage of 54%. In this condition, the extract yield was 12.95%, total phenolic 330.38 GAE mg / 100 g, flavonoids in total 298.15 QE mg / 100 g, the IC50for antioxidant activity is 78.37 ppm.

Protective Effect of Moringa Oleifera Leaves Against TramadolInduced Nephrotoxicity in Mice

2017 ◽  
Vol 9 (02) ◽  
Author(s):  
Ashraf Albrakati
Keyword(s):  
Oral Dose ◽  
Moringa Oleifera ◽  
Treated Group ◽  
Control Group ◽  
Serum Urea ◽  
Kidney Function Tests ◽  
Mean Values ◽  
Intraperitoneal Dose ◽  
Moringa Oleifera Leaves ◽  
The Mean

Tramadol, a broadly in recent years, is an effective analgesic agent for the treatment of moderate to acute pain. Its metabolites are excreted by the kidney which may cause nephrotoxicity. Moringa oleifera leaves are commonly used to provide herbal and plant-derived medicinal products especially in developing nations. The present study was carried out to determine the biochemical and histopathological changes in the kidney of tramadol-treated albino mice and to evaluate the possible protective role of Moringa oleifera leaves against tramadol-induced nephrotoxicity. Twenty adult albino mice were divided into four groups. Control group (group i) received daily intraperitoneal injection of normal saline only, group ii received oral dose of Moringa oleifera leaves extract (20 mg/kg/bw) for three weeks, group iii received daily intraperitoneal dose of tramadol (0.3 mg/kg/bw) for the same period, group iv, received daily oral dose of Moringa oleifera leaves extract, (20 mg/kg/bw) three hours before injecting intraperitoneal dose of tramadol (0.3 mg/kg/bw), for the same period. Blood samples were withdrawn at the end of the experiment for kidney function tests and specimens from the kidney were processed for histological study. No significant differences in the mean values of the kidney function tests were noticed between Moringa oleifera group and control group. However, there was highly significant increase in the mean values of serum, urea and creatinine in tramadol-treated group as compared to the control group. Although tramadol + Moringa oleifera group revealed significant difference in the mean values of urea and creatinine when compared with tramadol-treated group. So, Moringa oleifera leaves extract have been shown to attenuate the renal dysfunction, improve the renal architecture, with nearly normalization of serum urea and creatinine levels which indicate improvement of renal function. In conclusion, in the light of biochemical results and histological findings, co-administration of Moringa oleifera leaves lessened the negative effects of tramadol-induced nephrotoxicity; possibly by its antioxidant action. Further investigation of these promising protective effects of Moringa oleifera leaves against tramadol-induced renal injury may have considerable impact on developing an adjunct therapy aiming to improve the therapeutic index of some nephrotoxic drugs.

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