scholarly journals In vitro digestion of galactolipids from chloroplast-rich fraction (CRF) of postharvest, pea vine field residue (haulm) and spinach leaves

2019 ◽  
Vol 10 (12) ◽  
pp. 7806-7817 ◽  
Author(s):  
Jutarat Wattanakul ◽  
Moulay Sahaka ◽  
Sawsan Amara ◽  
Syamila Mansor ◽  
Brigitte Gontero ◽  
...  
Keyword(s):  
Pancreatic Juice ◽  
In Vitro Digestion ◽  
Plant Materials ◽  
Whole Plant ◽  
Spinach Leaves

The galactolipase activity of pancreatic juice, pancreatic extracts and a purified PLRP2 (GPLRP2) on chloroplast-rich fractions from whole plant materials under in vitro condition was measured.

scholarly journals In-Vitro Anti-inflammatory Activity of Methanolic Extract of Convolvulus pluricaulis Choisy

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Puneet Singh ◽  
Yogesh Sharma ◽  
Ashutosh Sharma
Keyword(s):  
Methanolic Extract ◽  
Protein Denaturation ◽  
Inflammatory Activity ◽  
Local Market ◽  
Plant Materials ◽  
Whole Plant ◽  
Soxhlet Apparatus ◽  
Anti Inflammatory ◽  
Convolvulus Pluricaulis

Aim: In-Vitro Anti-inflammatory Activity of Methanolic Extract of Convolvulus pluricaulis Choisy. Material & Methods- The whole plant parts of Convolvulus pluricaulis Choisy were purchased from the local market. Whole plant materials were dried under shade and subjected to coarse powder for extraction process. Accurately weighed quantity of whole plant material was extracted using 95 % methanol by soxhlet apparatus for 72 h. Qualitative chemical tests of methanolic extracts were subjected to various chemical tests to detect various phytoconstituents. Solvent systems ethyl acetate: methanol: water (77:13:10) were found to be most satisfactory solvent system. After development of plates, they were air-dried and number of spots, color and Rf values were recorded. The % heamolysis was calculated by assuming the heamolysis produced by the control group as 100 %. Results: The preliminary phytochemical analysis revealed that different active constituent present in different extracts such as carbohydrates, proteins, amino acids, fat, oils, steroids, terpenoids, glycosides, alkaloids, tannins and other phenolics compounds. At a concentration of 500 µg/ml, the extract produced 71.59% protection of RBC haemolysis as compared with 72.73% produced by prednisolone.  The methanolic extract of selected plant showed 39.70% inhibition. The Diclofenac sodium showed 55.88 % inhibition against denaturation of protein. Conclusion: In conclusion, it can be stated that the methanolic extract has beneficial effects in long lasting in membrane stabilizing method, inhibition of protein denaturation method and proteinase model. Keywords: In-Vitro, Anti-inflammatory Activity, Methanolic Extract, Convolvulus pluricaulis Choisy, Protein Denaturation Method

scholarly journals Survival of Lactobacillus paracasei subsp. paracasei LBC 81 in Fermented Beverage from Chickpeas and Coconut in a Static In Vitro Digestion Model

Fermentation ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 135
Author(s):  
Maria Carolina Mesquita ◽  
Eliana dos Santos Leandro ◽  
Ernandes Rodrigues de Alencar ◽  
Raquel Braz Assunção Botelho
Keyword(s):  
Gastric Juice ◽  
Pancreatic Juice ◽  
In Vitro Digestion ◽  
Storage Condition ◽  
Lactobacillus Paracasei ◽  
Survival Percentage ◽  
Viable Cells ◽  
Gastrointestinal Conditions ◽  
Fermented Beverage

The objective of this study was to evaluate in a static in vitro digestion model the survival of Lactobacillus paracasei subsp. paracasei LBC 81 in fermented chickpea and coconut beverage. The fermented beverage was stored for 1 and 8 days at 4 °C and then submitted to gastric juice, pancreatic juice, or sequential exposure to gastric and pancreatic juice. The experiment controls were (i) control 1—suspension of cells in 0.85% saline solution; (ii) control 2—cell suspension in chickpea and coconut beverage. The survival of L. paracasei was determined in log CFU/mL and expressed as a survival percentage. The survival of L. paracasei in the fermented beverage after exposure to gastric juice and sequential exposure to gastric and pancreatic juice was 99.47 + 2.05% and 93.21 + 0.43%, respectively. These values were higher than those found for controls 1 and 2. The storage condition of the fermented beverage for 1 or 8 days at 4 °C did not affect the survival after exposure to gastric juice, pancreatic juice, or sequential exposure. The results obtained in this study conclude that the fermented beverage of chickpeas and coconut is an excellent carrier for L. paracasei LBC 81, capable of enhancing survival to gastrointestinal conditions and ensuring a greater number of viable cells reaching the intestinal epithelium.

scholarly journals Postprocessing In Vitro Digestion Challenge To Evaluate Survival of Escherichia coli O157:H7 in Fermented Dry Sausages

2004 ◽  
Vol 70 (11) ◽  
pp. 6637-6642 ◽  
Author(s):  
Fadia Naim ◽  
Serge Messier ◽  
Linda Saucier ◽  
Gabriel Piette
Keyword(s):  
Escherichia Coli ◽  
Pancreatic Juice ◽  
Stomach Contents ◽  
In Vitro Digestion ◽  
Gastric Fluid ◽  
E Coli ◽  
Initial Ph ◽  
Meal Ingestion ◽  
Dry Sausages

ABSTRACT Fermented dry sausages, inoculated with Escherichia coli O157:H7 during batter preparation, were submitted to an in vitro digestion challenge to evaluate the extent to which passage through the human gastrointestinal tract could inactivate the pathogenic cells, previously stressed by the manufacturing process. The numbers of surviving E. coli O157:H7 cells remained constant after a 1-min exposure of the finely chopped sausage to synthetic saliva or during the following 120-min exposure to synthetic gastric juice at an initial pH of 2.0. However, significant (P ≤ 0.05) growth of the pathogen (1.03 to 2.16 log10 CFU/g) was observed in a subsequent 250-min exposure to a synthetic pancreatic juice at pH 8.0. In a different set of experiments, fractions from the gastric suspension were transferred into the synthetic pancreatic juice at 30-min intervals to mimic the dynamics of gastric emptying. Concurrently, the pH of the remaining gastric fluid was reduced to 3.0, 2.5, and 2.0 to simulate the gradual reacidification of the stomach contents after the initial buffering effect resulting from meal ingestion. Under these new conditions, pathogen growth during pancreatic challenge was observed for the first few fractions released from the stomach (90 min of exposure [pH 2.5]), but growth was no longer possible in the fractions submitted to the most severe gastric challenge (120 min of exposure [pH < 2.2]).

scholarly journals In-vitro cytotoxic and anti-Vibrio cholerae activities of alcoholic extracts of Desmodium triflorum (L.) whole plant and Terminalia citrina (Roxb.) fruits

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Rubaba Karim ◽  
Mst Marium Begum ◽  
Yeasmin Jui ◽  
Tanjina Islam ◽  
Masum Billah ◽  
...  
Keyword(s):  
Vibrio Cholerae ◽  
Antimicrobial Agents ◽  
Ethanolic Extract ◽  
Diffusion Method ◽  
Cytotoxic Activities ◽  
Plant Materials ◽  
Whole Plant ◽  
Vincristine Sulphate ◽  
Ethanolic Extracts

Abstract Background The majority of epidemic Vibrio cholerae strains have become resistant to multiple antimicrobial agents for many reasons, including mutations, horizontal gene transfers, etc. Therefore, secondary means of treatment are needed to overcome this impediment in combating cholera. Desmodium triflorum (L.) and Terminalia citrina (Roxb.) are extensively used in traditional medicine. Therefore, the present study aims to evaluate the antibacterial activity of methanolic and ethanolic extracts of Desmodium triflorum (L.) whole plant and Terminalia citrina (Roxb.) fruits against V. cholerae isolates. Methods Initially, different extracts of both plant materials were subjected to qualitative phytochemical screening. Anti-V. cholerae activities were assessed by performing MIC (minimum inhibitory concentration) test using disc diffusion method with different concentrations (1.25, 2.50, 8.00, 10.00, 12.50, 15.00 mg/ml) where standard discs of gentamycin and meropenem (10 μg/disc) were used. Further, Brine shrimp lethality bioassay was done to evaluate the extracts’ cytotoxic activities using different concentrations (800, 400, 200, 100, 50, 25, 12.5, 6.25 μg/ml) against vincristine sulphate. Results The preliminary screening confirms the presence of convenient phytochemical constituents like flavonoids, alkaloids, glycosides, tannins, etc., and are liable for the emergence of the antibacterial activities in different strains. The minimum inhibitory concentrations of both methanolic and ethanolic extracts of Terminalia citrina (fruits) and Desmodium triflorum (L.) (whole plant) were found to be 2.50 mg/ml and 5 mg/ml, respectively. Moreover, 100% mortality was observed only in ethanolic extract of Terminalia citrina fruits at the highest concentration (800 μg/ml). In comparison, the rest of the test extracts showed less than 90% mortality at the highest concentration (800 μg/ml). Conclusions Both plants possess significant phytoconstituents and showed appreciable anti-V. cholerae activities with mild toxicity. Hence, Desmodium triflorum (L.) whole plant and Terminalia citrina (Roxb.) fruits may be recommended as potential phytotherapy against cholera disease.

Evaluation of Antibacterial and Antidiabetic Potential of Silver Nanoparticles using Eugenia Uniflora L. Seed Extract

2020 ◽  
Vol 13 (6) ◽  
pp. 5217-5225
Author(s):  
Guru Kumar Dugganaboyana ◽  
Chethankumar Mukunda ◽  
Suresh Darshini Inakanally
Keyword(s):  
Biomedical Applications ◽  
Pathogenic Bacteria ◽  
Seed Extract ◽  
Drug Formulation ◽  
Visible Spectroscopy ◽  
Plant Materials ◽  
X Ray ◽  
Eugenia Uniflora ◽  
Uv Visible

In recent years, green nanotechnology-based approaches using plant materials have been accepted as an environmentally friendly and cost-effective approach with various biomedical applications. In the current study, AgNPs were synthesized using the seed extract of the Eugenia uniflora L. (E.uniflora). Characterization was done using UV-Visible spectroscopy, X-ray diffraction (XRD), scanning electronic microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) analyses. The formation of AgNPs has confirmed through UV-Visible spectroscopy (at 466 nm) by the change of color owing to surface Plasmon resonance. Based on the XRD pattern, the crystalline property of AgNPs was established. The functional group existing in seed of E.uniflora extract accountable for the reduction of Ag+ ion and the stabilization of AgNPs was investigated. The morphological structures and elemental composition was determined by SEM and EDX analysis. With the growing application of AgNPs in biomedical perspectives, the biosynthesized AgNPs were evaluated for their antibacterial and along with their antidiabetic potential. The results showed that AgNPs are extremely effective with potent antidiabetic potential at a very low concentration. It also exhibited potential antibacterial activity against the three tested human pathogenic bacteria. Overall, the results highlight the effectiveness and potential applications of AgNPs in biomedical fields such as in the treatment of acute illnesses as well as in drug formulation for treating various diseases such as cancer and diabetes. It could be concluded that E. uniflora seed extract AgNPs can be used efficiently for in vitro evaluation of their antibacterial and antidiabetic effects with potent biomedical applications.

Nyctanthes Arbor-Tristis and its Role in the Alleviation of Arthritic Pain: A Review

2020 ◽  
Vol 16 (8) ◽  
pp. 1147-1156
Author(s):  
Ruchi Singh ◽  
Syed M. Hasan ◽  
Amit Verma ◽  
Sanjay K. Panda
Keyword(s):  
Research Work ◽  
Plant Distribution ◽  
Pharmacological Activities ◽  
Whole Plant ◽  
Modern Drug ◽  
Active Chemical ◽  
Drug Synthesis ◽  
New Compounds

Background: A plant is a reservoir of potentially useful active chemical entities which act as drugs as well as intermediates for the discovery of newer molecules and provide newer leads for modern drug synthesis. The demand for new compounds in the field of medicine and biotechnology is centuries old and with a rise in chronic diseases and resistance to existing drugs in the field of anti-infective agents, the chemicals obtained from plant sources have been an area of attraction. The whole plant has possessed multiple pharmacological activities. This is scientifically established by in-vivo and in-vitro studies. Methods: Various electronic databases such as PubMed, Science Direct, Scopus and Google were searched to collect the data of the present review. All the collected information is categorized into different sections as per the aim of the paper. Results: Fifty-six research and review papers have been studied and were included in this review article. After a detailed study, we provide a significant description of various phytochemicals present in Nyctanthes arbor-tristis Linn., which is responsible for various pharmacological activities. Twenty of studied articles gives a general introduction and ethnobotanical information about the plant, two papers contained microscopic detail of leaf and fruit. Twenty papers contained information about the phytoconstituents present in different parts of Nyctanthes arbor-tristis plant and fourteen articles reported pharmacological activities like antioxidant, anti-inflammatory, antiarthritic, antimicrobial and immunobiotic activity. Conclusion: This review explores the published research work comprising the ethnobotanical description of the subjected plant, distribution, phytochemical profile, and arthritis-related pharmacological activities.

Synergistic Antitumor Effect of 5-Fluorouracil Combined with Constituents from Pleurospermum lindleyanum in Hepatocellular carcinoma SMMC-7721 Cells

2020 ◽  
Vol 20 ◽  
Author(s):  
Xiao-Feng Zhu ◽  
Xiao-Jin Li ◽  
Zhong-Lian Cao ◽  
Xiu-Jie Liu ◽  
Ping Yang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Treatment Effectiveness ◽  
Synergistic Effects ◽  
Folk Medicine ◽  
Inhibitory Effect ◽  
Caspase 9 ◽  
Whole Plant ◽  
Anti Cancer ◽  
Induced Apoptosis

Background: A Chinese folk medicine plant Pleurospermum lindleyanum possesses pharmacological activities of heat-clearing, detoxifying and preventing from hepatopathy, coronary heart disease, hypertension, and high altitude sickness. We isolated and characterized its constituents to investigate its synergistic effects against human hepatoma SMMC-7721 cells. Objective: The aim of this study was to explore the synergistic anti-cancer activities of isolates from P. lindleyanum with 5-FU on hepatoma SMMC-7721 cells in vitro and their primary mechanisms. Methods: Sequential chromatographic techniques were conducted for the isolation studies. The isolates structures were established by spectroscopic analysis as well as X-ray crystallographic diffraction. Growth inhibition was detected by MTT assay. The isobologram method was used to assess the effect of drug combinations. Flow cytometry and western blot were used to examine apoptosis and protein expression. Results: A new coumarin (16), along with sixteen known compounds, were isolated from the whole plant of P. lindleyanum and their structures were elucidated by spectroscopic methods. Four coumarins (2, 3, 5, and 16), two flavonoids (8 and 9) and three phytosterols and triterpenes (12-14) were found to synergistically enhance the inhibitory effect of 5-FU against SMMC-7721 cells. Among them, compounds 3 and 16 exhibited the best synergistic effects with IC50 of 5-FU reduced by 16-fold and 22-fold possessing the minimum Combination Index (CI) 0.34 and 0.27. The mechanism of action of combinations might be through synergistic arresting for the cell cycle at G1 phases and the induction of apoptosis. Moreover, western blotting and molecular docking revealed that compounds 3 or 5 might promote 5-FU-induced apoptosis by regulating the expression of Caspase 9 and PARP. Conclusion: Constituents from P. lindleyanum may improve the treatment effectiveness of 5-FU against hepatocellular carcinoma cells.

scholarly journals Differential impact of Holder and High Temperature Short Time pasteurization on the dynamic in vitro digestion of human milk in a preterm newborn model

2020 ◽  
Vol 328 ◽  
pp. 127126 ◽  
Author(s):  
Stefano Nebbia ◽  
Marzia Giribaldi ◽  
Laura Cavallarin ◽  
Enrico Bertino ◽  
Alessandra Coscia ◽  
...  
Keyword(s):  
High Temperature ◽  
Human Milk ◽  
In Vitro Digestion ◽  
Preterm Newborn ◽  
Differential Impact ◽  
High Temperature Short Time ◽  
Short Time

Interaction between barley β-glucan and corn starch and its effects on the in vitro digestion of starch

2019 ◽  
Vol 141 ◽  
pp. 240-246 ◽  
Author(s):  
Hui Zhang ◽  
Zhi Li ◽  
Yanjun Tian ◽  
Zibo Song ◽  
Lianzhong Ai
Keyword(s):  
Corn Starch ◽  
In Vitro Digestion
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