Chemical, technological and in vitro antioxidant properties of mango, guava, pineapple and passion fruit dietary fibre concentrate

2012 ◽  
Vol 135 (3) ◽  
pp. 1520-1526 ◽  
Author(s):  
Ruth Martínez ◽  
Paulina Torres ◽  
Miguel A. Meneses ◽  
Jorge G. Figueroa ◽  
José A. Pérez-Álvarez ◽  
...  
2020 ◽  
pp. 76-78
Author(s):  
K Gayathri ◽  
Prathima G.S ◽  
R Sajeev ◽  
A Sanguida

Purpose: Elimination of infectious microorganisms that cause pulpal and periapical diseases through biomechanical preparation and irrigation is mandatory for the success of endodontic therapy. Although many irrigants were used before, a novel approach in the field of endodontics began with the advent of herbal extracts. Passion fruit is an exotic climber possessing many antimicrobial, antifungal and antioxidant properties that fulfil some desirable properties required for an ideal root canal irrigant. Considering these, the study was aimed to compare and assess the antimicrobial efficacy of different concentrations of Passion fruit extract with saline and NaOCl against E. Faecalis. Methods: 80 single rooted premolars following the inclusion and exclusion criteria were taken for the study and was divided randomly in to four groups namely Group A- 30% Passion fruit extract, Group B- 20% Passion fruit extract, Group C- 0.9% Normal saline, Group D- 5.25% Sodium hypochlorite. Before and after irrigation CFU were calculated after canal preparation and irrigation with test and control irrigants was done. All the groups were compared and the data’s were analysed statistically. Results: Group A 30% Passion fruit extract showed a comparable result with Group D- 5.25% Sodium hypochlorite and was statistically significant Conclusion: 20% and 30% Passion fruit extract was found effective in reducing the bacterial load and 30% Passion fruit extract was comparable with 5.25% Sodium hypochlorite


Food Research ◽  
2021 ◽  
Vol 5 (3) ◽  
pp. 406-412
Author(s):  
K. Wongsariya ◽  
P. Kanchanadumkerng

This study aimed to evaluate the functional and prebiotic properties of the edible portions of certain tropical fruits in Thailand, passion fruit and santol. The proximate composition of passion fruit and santol were analysed which total carbohydrate was the major component in both samples. Total dietary fibre of passion fruit and santol was 44.81 and 26.82% (w/w), respectively, with the majority of insoluble dietary fibre. Soluble dietary fibre of both fruits was extracted by hot water and water-extractable polysaccharide was yielded at 16.47% and 25.24% (w/w) for passion fruit and santol, respectively. The functional properties of fruit fibre were informed, with the satisfactory oil holding capacity of santol polysaccharide. The effect of both fruit polysaccharides on proliferation number at 24 hrs was not different from inulin. Prebiotic activity score of fruit polysaccharide was calculated from the growth of Lactobacillus acidophilus and Bifidobacterium longum compared with the growth of the enteric pathogen, Escherichia coli corresponding to -0.25 and -0.23 for passion fruit and 0.10 and -0.01 for santol, respectively. In conclusion, both passion fruit and santol polysaccharide showed a distinct effect on the supportive growth of probiotic bacteria which may be potential candidate ingredient incorporated in probiotic food. From this evidence, the development of fruitbased synbiotics from passion fruit and santol migh be affordable.


2018 ◽  
Vol 24 (2) ◽  
Author(s):  
GITA MISHRA ◽  
HEMESHWER KUMAR CHANDRA ◽  
NISHA SAHU ◽  
SATENDRA KUMAR NIRALA ◽  
MONIKA BHADAURIA

Pergularia daemia belongs to the family Asclepiadaceae, known to have anticancer, anti-inflammatory activity. Aim of the present study was to evaluate qualitative and quantitative phytochemical and antioxidant properties of ethanolic extracts of leaf, stem and root parts of P. daemia . Preliminary phytochemical analysis and in vitro antioxidant properties were evaluated by standard methods. The qualitative phytochemical analysis of P. daemia showed presence of flavonoids, tannins, alkaloid, phytosterol, carbohydrate, phenol, saponin, glycosides, terpenoids, steroids proteins and reducing sugars. Quantitative analysis showed polyphenol, flavonoid, flavonone, flavone and flavonol in P. daemia leaves, stem and root in considerable quantity. The in vitro antioxidant activity of P. daemia clearly demonstrated that leaf, stem and root parts have prominent antioxidant properties and was effective in scavenging free radicals.


2013 ◽  
Vol 10 (8) ◽  
pp. 797-808 ◽  
Author(s):  
Irene Bolea ◽  
Alejandro Gella ◽  
Leticia Monjas ◽  
Concepción Pérez ◽  
María Rodríguez-Franco ◽  
...  

Author(s):  
Mojgan Azadpour ◽  
Mohammad Mehdi Farajollahi ◽  
Ali Mohammad Varzi ◽  
Pejman Hashemzadeh ◽  
Hossein Mahmoudvand ◽  
...  

Introduction: This study aimed to evaluate the antioxidant property of silymarin (SM) extracted from the seed of Silybum marianum and its anticancer activity on KB and A549 cell lines following 24, 48, and 72 h of treatment. Methods: Ten grams of powdered S. marianum seeds were defatted using n-hexane for 6 hours and then extracted by methanol. The silymarin extracted of extraction components The extracted components of silymarin were measured by spectrophotometric assay and HPLC analysis. 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, phenol content, total flavonoid content, and total antioxidant capacity were measured to detect the antioxidant properties of SM. The anticancer activity of the SM on cell lines evaluated by MTT. Results: In HPLC analysis, more than 50% of the peaks were related to silibin A and B. SM was reducedDPPH (the stable free radical) with a 50% inhibitory concentration (IC50) of 6.56 μg/ ml in comparison with butylated hydroxyl toluene (BHT), which indicated an IC50 of ~3.9 μg/ ml.The cytotoxicity effect of SM on the cell lines was studied by MTT assay. The cytotoxicity effect of the extracted silymarin on KB and A549 cell lines was observed up to 80 and 70% at 156 and 78 µg/ml, respectively. The IC50 value of the extracted SM on KB and A549 cell lines after 24 hours of treatment was seen at 555 and 511 µg/ml, respectively. Conclusion: Due to the good antioxidant and anticancer properties of the isolated silymarin, its use as an anticancer drug is suggested.


Author(s):  
Jorge A. Ramos-Hernández ◽  
Montserrat Calderón-Santoyo ◽  
Armando Burgos-Hernández ◽  
Joel S. García- Romo ◽  
Arturo Navarro-Ocaña ◽  
...  

Background: Cancer is a disease characterized by the invasion and uncontrolled growth of cells. One of the best ways to minimize the harmful effects of mutagens is through the use of natural antimutagens. In this regard, the search for new antimutagens that act in the chemoprevention could represent a promising field in this area. Objective: In this study biological potential of 11 fractions from Coccoloba uvifera L. leaf hexane extract was evaluated by several in vitro tests. Methods: Leaves were lyophilized and hexane extraction was performed. The extract was fractionated by column chromatography with hexane, ethyl acetate, and methanol. The antimutagenic (Ames test), antiproliferative (MTT test), and antioxidant capacity (DPPH, ABTS, and ferrous ion chelation) of the fractions were evaluated. Results: Fractions 4, 6, 8, and 9 have antimutagenic activity (against sodium azide in strain TA100), fraction 11 showed antiproliferative capacity (IC50 of 24 ± 9 μg/mL in cells of HCT 116). The fractions with the highest activity were analyzed by HPLC-MS and lupeol, acacetin, and β-sitosterol were identified. Conclusion: This study demonstrates, for the first time, the bioactivity of C. uvifera leaf as a new source of high biological value compounds (HBVC), which can be of interest to the food and pharmaceutical industries.


2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Xin Yang ◽  
Di Zhang ◽  
Li-min Song ◽  
Qian Xu ◽  
Hong Li ◽  
...  

Peony seed oil (PSO) is a novel vegetable oil developed from the seeds of Paeonia suffruticosa Andr. The present study aimed to make an overall investigation on the chemical profile and antioxidant activities of PSO for reasonable development and utilization of this new resource food. Chemical analysis revealed that PSO was characterized by an uncommon high portion of α-linolenic acid (>38%), fairly low ratio of n-6 to n-3 polyunsaturated fatty acids (0.69), and much higher content of γ-tocopherol than various conventional seed oils. In vitro assay indicated that PSO is a more potent scavenger of free radicals than extra virgin olive oil. Moderate intake of PSO exhibited obvious protection against various oxidative damages such as tetrachloromethane-induced acute liver injury in mice and diet-induced hyperlipidemia in rats. The changes in the key indicators of oxidative injury and fatty acid composition in the liver caused by PSO administration were measured, and the results demonstrated that antioxidant properties of PSO are closely related to their characteristic chemical composition. Consequently, the present study provided new evidence for the health implications of PSO, which deserves further development for medical and nutritional use against oxidative damages that are associated with various diseases.


Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 918
Author(s):  
Nóra Emilia Nagybákay ◽  
Michail Syrpas ◽  
Vaiva Vilimaitė ◽  
Laura Tamkutė ◽  
Audrius Pukalskas ◽  
...  

The article presents the optimization of supercritical CO2 extraction (SFE-CO2) parameters using response surface methodology (RSM) with central composite design (CCD) in order to produce single variety hop (cv. Ella) extracts with high yield and strong in vitro antioxidant properties. Optimized SFE-CO2 (37 MPa, 43 °C, 80 min) yielded 26.3 g/100 g pellets of lipophilic fraction. This extract was rich in biologically active α- and β-bitter acids (522.8 and 345.0 mg/g extract, respectively), and exerted 1481 mg TE/g extract in vitro oxygen radical absorbance capacity (ORAC). Up to ~3-fold higher extraction yield, antioxidant recovery (389.8 mg TE/g pellets) and exhaustive bitter acid extraction (228.4 mg/g pellets) were achieved under the significantly shorter time compared to the commercially used one-stage SFE-CO2 at 10–15 MPa and 40 °C. Total carotenoid and chlorophyll content was negligible, amounting to <0.04% of the total extract mass. Fruity, herbal, spicy and woody odor of extracts could be attributed to the major identified volatiles, namely β-pinene, β-myrcene, β-humulene, α-humulene, α-selinene and methyl-4-decenoate. Rich in valuable bioactive constituents and flavor compounds, cv. Ella hop SFE-CO2 extracts could find multipurpose applications in food, pharmaceutical, nutraceutical and cosmetics industries.


Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1081
Author(s):  
Matilda Rădulescu ◽  
Călin Jianu ◽  
Alexandra Teodora Lukinich-Gruia ◽  
Marius Mioc ◽  
Alexandra Mioc ◽  
...  

The investigation aimed to study the in vitro and in silico antioxidant properties of Melissa officinalis subsp. officinalis essential oil (MOEO). The chemical composition of MOEO was determined using GC–MS analysis. Among 36 compounds identified in MOEO, the main were beta-cubebene (27.66%), beta-caryophyllene (27.41%), alpha-cadinene (4.72%), caryophyllene oxide (4.09%), and alpha-cadinol (4.07%), respectively. In vitro antioxidant properties of MOEO have been studied in 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging, and inhibition of β-carotene bleaching assays. The half-maximal inhibitory concentration (IC50) for the radical scavenging abilities of ABTS and DPPH were 1.225 ± 0.011 μg/mL and 14.015 ± 0.027 μg/mL, respectively, demonstrating good antioxidant activity. Moreover, MOEO exhibited a strong inhibitory effect (94.031 ± 0.082%) in the β-carotene bleaching assay by neutralizing hydroperoxides, responsible for the oxidation of highly unsaturated β-carotene. Furthermore, molecular docking showed that the MOEO components could exert an in vitro antioxidant activity through xanthine oxidoreductase inhibition. The most active structures are minor MOEO components (approximately 6%), among which the highest affinity for the target protein belongs to carvacrol.


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