scholarly journals Polyfloral, linden and acacia honeys with dried cherries after three months of storage - antioxidant and sensory evaluation

2015 ◽  
pp. 103-114 ◽  
Author(s):  
Jelena Vulic ◽  
Jasna Canadanovic-Brunet ◽  
Gordana Cetkovic ◽  
Sonja Djilas ◽  
Vesna Tumbas-Saponjac ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Statistical Analysis ◽  
Sensory Evaluation ◽  
Sensory Analysis ◽  
Antiradical Activity ◽  
Antioxidant Activities ◽  
Reducing Power ◽  
Sensory Properties ◽  
Sensory Characteristics ◽  
Before And After

Samples of three types of honey: polyfloral (PH), linden (LH) and acacia (AH,) without and with addition of dried cherries (40%) were analyzed before and after three months of storage. The total phenol (TPh), flavonoid (TFd) and anthocyanin (TAn) contents, antioxidant activities and sensory properties of honeys with and without the addition of dry cherries were evaluated. TPh and TFd increased with addition of dried cherries to the honey, while enriched honeys showed high TAn. The LH sample with dried cherries showed the highest anthocyanins content (41.41mgCGE/100g). The antioxidant activity increased with addition of dried cherries in honey in the DPPH? test and reducing power. The PH and enriched PH exibited the best antiradical activity compared to LH and AH. The EC50 DPPH values were: 23.81 for PH and 24.19 mg/mL for PH, while the EC50 DPPH were: 1.16 mg/mL for PH40 and 1.18 mg/mL for PH40s. RP0.5 values were: 57.00 mg/mL for PH40 and 56.00 mg/ml for PH40s, while RP0.5 were: 15.05 mg/mL for PH40 and 15.18 mg/mL for PH40s. The statistical analysis showed that TPh, TFd and TAn, and antioxidant activity of honeys and enriched honeys showed significant correlation. Sensory analysis of honey with dried cherries, before and after storage, indicated very good sensory characteristics.

scholarly journals Antioxidant Activities and Repair Effects on Oxidatively Damaged HK-2 Cells of Tea Polysaccharides with Different Molecular Weights

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Xin-Yuan Sun ◽  
Jian-Min Wang ◽  
Jian-Ming Ouyang ◽  
Li Kuang
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Cell Model ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Human Kidney ◽  
Molecular Weights ◽  
Before And After ◽  
Proximal Tubular Epithelial Cells

This study aims at investigating the antioxidant activity and repair effect of green tea polysaccharide (TPS) with different molecular weights (Mw) on damaged human kidney proximal tubular epithelial cells (HK-2). Scavenging activities on hydroxyl radical (⋅OH) and ABTS radical and reducing power of four kinds of TPS with Mw of 10.88 (TPS0), 8.16 (TPS1), 4.82 (TPS2), and 2.31 kDa (TPS3) were detected. A damaged cell model was established using 2.6 mmol/L oxalate to injure HK-2 cells. Then, different concentrations of TPSs were used to repair the damaged cells. Index changes of subcellular organelles of HK-2 cells were detected before and after repair. The four kinds of TPSs possessed radical scavenging activity and reducing power, wherein TPS2 with moderate Mw presented the strongest antioxidant activity. After repair by TPSs, cell morphology of damaged HK-2 cells was gradually restored to normal conditions. Reactive oxygen species production decreased, and mitochondrial membrane potential (Δψm) of repaired cells increased. Cells of G1 phase arrest were inhibited, and cell proportion in the S phase increased. Lysosome integrity improved, and cell apoptotic rates significantly reduced in the repaired group. The four kinds of TPSs with varying Mw displayed antioxidant activity and repair effect on the mitochondria, lysosomes, and intracellular DNA. TPS2, with moderate Mw, showed the strongest antioxidant activity and repair effect; it may become a potential drug for prevention and treatment of kidney stones.

scholarly journals Antioxidant Effect and Sensory Evaluation of Yogurt Supplemented with Hydroponic Ginseng Root Extract

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 639
Author(s):  
Hyun Sook Lee ◽  
Myung Wook Song ◽  
Kee-Tae Kim ◽  
Wan-Soo Hong ◽  
Hyun-Dong Paik
Keyword(s):  
Antioxidant Activity ◽  
Sensory Evaluation ◽  
Antioxidant Activities ◽  
Reducing Power ◽  
Ginseng Root ◽  
Control Group ◽  
Root Extract ◽  
Ginseng Extract ◽  
Antioxidant Power ◽  
Fermentation Time

Hydroponic ginseng (HG) is cultivated using only nutrients and water under constant environmental conditions and is more beneficial than soil-cultured ginseng (SG). This study aimed to determine the physicochemical properties, antioxidant activity, and sensory properties of HG-supplemented yogurt to develop high-value yogurt. HG (0.1%, 0.5%, and 1.0%) was added to yogurt formulations and fermented with a 0.1% starter. Antioxidant activities were determined using the 2,2-diphenyl-1-picryl-hydrazyl (DPPH), 2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt, reducing power, and ferric reducing antioxidant power assays. Semi-trained panelists performed a quantitative descriptive analysis for sensory evaluation. The number of starter cells increased more rapidly in ginseng extract-fortified yogurt than in the control group, shortening fermentation time. Regarding antioxidant assays, all HG extract-fortified yogurts showed higher antioxidant activity than the control group. In particular, the HG (0.5%) group showed better results than the SG group in the DPPH and reducing power assays, although the difference was not significant. The sensory scores of color, flavor, texture, taste, and overall acceptance of 0.5% HG-supplemented yogurt did not differ significantly from those of non-supplemented yogurt (control). This suggests that HG can be used in high-value dairy products as a supplement with bioactive properties for health in the food industry.

scholarly journals Sensory Evaluation of Wheat Bran Biscuits Mixed with Flaxseed

2019 ◽  
pp. 1-5
Author(s):  
Arpana Tiwari ◽  
Sunita Mishra
Keyword(s):  
Antioxidant Activity ◽  
Sensory Evaluation ◽  
Wheat Bran ◽  
Sensory Properties ◽  
Sensory Characteristics ◽  
Overall Acceptability ◽  
Flaxseed Flour ◽  
Hedonic Scale ◽  
Phenolic Concentration

Biscuit consumption is considered one of the top ten daily consumed foods [1]. The objective of this study was acceptability of biscuit containing three different combinations of powders of wheat bran, flaxseed and wheat viz., 25:75:0, 0:50:50, 20:80:0 were used to prepare 100gms flour mix. Acceptance was assessed using a hedonic scale of nine points. It was noticed that incorporation of flaxseed flour at 80% was unacceptable in biscuit. At this level of incorporation of flaxseed flour, the sensory properties of the product were affected i.e., flavour and taste wise, body and texture, colour and appearance and overall quality whereas 75% addition of flaxseed flour produced good results [2]. The antioxidant activity, phenolic concentration was linearly increased as the fortification was increased [1]. Data revealed that the overall acceptability of biscuit ranged from 9 to 7. This indicated that the recipes were found to fall under the category of ‘like extremely to like moderately’. It can finally be discerned from the sensory scores for biscuit prepared with 75% incorporation of flaxseed flour with 25% of wheat bran flour, that the biscuit was equally acceptable as that of control [2]. The acceptability of sensory characteristics was improved by this fortification immediately after preparation and during storage [3].

scholarly journals Interspecific vs. traditional varieties for rosé wines production

2010 ◽  
Vol 58 (5) ◽  
pp. 21-26 ◽  
Author(s):  
Mojmír Baroň ◽  
Michal Kumšta ◽  
Petra Bábíková ◽  
Radek Sotolář
Keyword(s):  
Phenolic Compounds ◽  
Sensory Evaluation ◽  
Optical Density ◽  
Antiradical Activity ◽  
Reducing Power ◽  
Organic Production ◽  
Sensory Properties ◽  
Fungal Diseases ◽  
Total Anthocyanins ◽  
Resistance To Fungal Diseases

This study was aimed on comparison of interspecific and traditional varieties suitable for rosé wines production. For samples of wines – ‘Laurot’, ‘Cerason’, ‘Merlan’, three interspecific Czech varieties and ‘St. Laurent’, ‘Blaufränkisch’ two traditional varieties and furthermore new Slovak variety ‘Nitra’ and Austrian ‘Blauer Wildbacher’ were carried out measurements of fundamental analytical values. Furthermore, total and individual phenolic compounds, total anthocyanins, optical density at 280 nm (OD280), total flavanols, reducing power and antiradical activity were determined. The results show that most phenolic compounds and highest antiradical activity has the Austrian variety ‘Blauer Wildbacher’ which was in sensory evaluation in last place. From Czech varieties it was ‘Cerason’ and ‘Laurot’. In the sensory evaluation landed the best variety ‘Blaufränkisch’. Very good results then reached a variety ‘Laurot’ as in 2008. Due its higher resistance to fungal diseases, health benefits and good sensory properties appears to be interesting for the production of rosé wines, not only from organic production.

scholarly journals Antioxidant and Anticancer Activities of Wampee (Clausena lansium(Lour.) Skeels) Peel

2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
K. Nagendra Prasad ◽  
Jing Hao ◽  
Chun Yi ◽  
Dandan Zhang ◽  
Shengxiang Qiu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Total Phenolic ◽  
Liver Carcinoma ◽  
Scavenging Activity ◽  
Anticancer Activities

Antioxidant activities of wampee peel extracts using five different solvents (ethanol, hexane, ethyl acetate, butanol and water) were determined by using in-vitro antioxidant models including total antioxidant capability, 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging activity, reducing power, and superoxide scavenging activity. Ethyl acetate fraction (EAF) exhibited the highest antioxidant activity compared to other fractions, even higher than synthetic antioxidant butylated hydroxyl toluene (BHT). In addition, the EAF exhibited strong anticancer activities against human gastric carcinoma (SGC-7901), human hepatocellular liver carcinoma (HepG-2) and human lung adenocarcinoma (A-549) cancer cell lines, higher than cisplatin, a conventional anticancer drug. The total phenolic content of wampee fraction was positively correlated with the antioxidant activity. This is the first report on the antioxidant and anticancer activities of the wampee peel extract. Thus, wampee peel can be used potentially as a readily accessible source of natural antioxidants and a possible pharmaceutical supplement.

ASSESSMENT OF PHYTOCHEMICALS, TOTAL PHENOL, FLAVONOID CONTENT AND IN VITRO ANTIOXIDANT PROPERTY OF LARGE CARDAMOM EXTRACTS

INDIAN DRUGS ◽  
2021 ◽  
Vol 58 (10) ◽  
pp. 34-41
Author(s):  
Kanthlal S. K. ◽  
Jipnomon Joseph ◽  
Bindhu P. Paul ◽  
Vijayakumar M ◽  
Rema Shree A. B. ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Antioxidant Property ◽  
Bioactive Constituents ◽  
Preliminary Assessment ◽  
Reducing Power Assay ◽  
Large Cardamom

Amomum subulatum, commonly known as large or black cardamom, is a commonly used spice in Indian kitchens and is traditionally used to treat various ailments. To add more knowledge about the medicinal values of the fruit, this study was conducted to evaluate the in vitro antioxidant activities of aqueous, methanol, ethanol, hydro alcohol, ethyl acetate, acetone and chloroform extracts of the fruit. Preliminary assessment was done to detect the presence of phytoconstituents using identification tests. The antioxidant activity was measured by employing methods such as diphenylpicrylhydrazyl (DPPH) radical scavenging assay, total antioxidant activity equivalent to ascorbic acid, reducing power assay and superoxide anion scavenging assay. The antioxidant activities were compared with their respective phenol and flavonoid contents. Preliminary assessment revealed that large cardamom fruit is a good source of all the bioactive constituents as well as phenol and flavonoid essential for medicinal values. The extract obtained by polar solvents showed the highest antioxidant efficacy in relation to its phenol content. Also, all the solvent-soluble fractions showed a concentration-dependent antioxidant effect. Results from our study prove that large cardamom can alleviate oxidative stress, suggesting the potential of large cardamom as a functional food

scholarly journals Utilization of shrimp (penaeus menodon) and Caranx mate fish in the production of fish powder made with different methods

2020 ◽  
pp. 29-42
Author(s):  
هالة قنديل أبوبكر أحمدون ◽  
مواهب أحمد محمد المليح
Keyword(s):  
Sensory Evaluation ◽  
Animal Feed ◽  
Sensory Characteristics ◽  
Microbial Count ◽  
Protein Ratio ◽  
Fish Waste ◽  
Nutrient Value ◽  
Before And After ◽  
Microbial Infections ◽  
Weight Structure

This work has been carried out in order to determine the weight structure of both; shrimp )penaeus menodon ) and species (Caranx mate) belong to jack family, to find out the ratio of loss of unconsumed part and compare the microbial infections and nutrients of shrimp and jack powder after the different treatments. bacteriological and chemicals composition test carrying out, to find the total microbial count and the presence of Salmonella species, nutrient value such as fats, protein, mineral, moistures, fat-to-protein ratio and calculation of calories value existing in samples, sensory evaluation was also performed. The study showed that the unconsumed part of the fish %53.23 is higher than the shrimp's % 42.08 which equivalent the half production. Microbe test of the samples showed that shrimp and jack were contaminated with considerable numbers of bacteria, however, after drying, the total number was (10 > Cell forming unit). All samples, before and after treatment, were free of Salmonella. Also the results showed that difference between the two powders were significant in fat ratio; for the shrimp powder showed higher fat ratio, so its calorie value was higher. The results showed that difference between the two treatments in chemicals composition value for powders and there were no significant differences between the shrimp and fish waste powders, which were prepared in different ways in the sensory characteristics of shrimp and fish in different ways. The study has concluded that we can benefit from fish waste by manufacturing them into further good quality products that can be used for animal feed and further purposes.

scholarly journals Antioxidant and cytotoxic studies of Acacia nilotica twig extract and their green synthesized silver nanoparticles

2020 ◽  
Vol 9 (2) ◽  
pp. 975-980 ◽  
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Cell Lines ◽  
Antioxidant Activities ◽  
Reducing Power ◽  
Acacia Nilotica ◽  
Total Phenolic ◽  
Hek 293 ◽  
Selected Area Electron Diffraction ◽  
Wide Range

Acacia nilotica (L.) Delile is well known as “Desi Kikar”or Babul in India that possesses a wide range of pharmacological activities. In the present study, Acacia nilotica twig extract and its synthesized silver nanoparticles (AgNPs) were evaluated for total phenolic content (TPC), antioxidant activity and cytotoxic effects. Characterization of AgNPs was done by UV-Visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM) and Selected area electron diffraction (SAED) techniques. Antioxidant potential was determined using different assays including 2,2-diphenyl-1-picrylhydrazyl (DPPH), reducing power and β-carotene linoleic acid. Cytotoxicity was tested by 3-(4,5-dimethyl-2-yl)-2,5-diphynyl tetrazolium bromide (MTT) assay on Human embryonic kidney (HEK)-293 cell lines. The results indicated that AgNPs exhibited higher antioxidant activity (81.11 %) and TPC (57.35 mg of GAE/mL of extract) as compare to plant extract. A positive correlation was observed between the TPC and antioxidant activities. The inhibitory concentration (IC50) of A. nilotica extract and AgNPs was 52.08µg/mL and 56.82µg/mL respectively. Cytotoxicity against HEK-293 cell lines was dose dependent. Accordingly, it is summarized that A. nilotica based AgNPs could serve as a potential antioxidant for therapeutic purposes.

Effect of solvent on antioxidant activity of Zanthoxylum oxyphyllum Edgew and its DFT study

2021 ◽  
Vol 17 ◽  
Author(s):  
Nilamoni Chelleng ◽  
Moushumi Hazarik ◽  
Amlan J Kalita ◽  
Ankur K Guha ◽  
Chandan Tamuly
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Gallic Acid ◽  
Density Functional ◽  
Antioxidant Activities ◽  
Sinapic Acid ◽  
Reducing Power ◽  
Solvent System ◽  
Dft Study ◽  
Bioactive Molecule

Background: Free radicals can easily damage DNA, proteins, lipids within the tissue. Anti-oxidants from natural sources can diminish the actions of free radicals with no to very few adverse effects. The current study deals with the chemical composition and antioxidant activity from leaves of Zanthoxylum oxyphyllum Edgew. Methods: The antioxidant activities for DPPH, FRAP, ABTS radicals, phosphomolybdate assay, reducing power, and chelating power assay were evaluated in ethanol (ET), methanol (ME), chloroform (CH), ethyl acetate (EA), and petroleum ether (PE) extracts of the leaves. The Density Functional Theory (DFT) study was carried out on major phytochemicals to evaluate the most responsible bioactive molecule responsible for antioxidant activity. Results: It was observed that the ME extract showed the most potent scavenging activities in DPPH, FRAP, ABTS radicals, phosphomolybdate assay, reducing power, and chelating power assay. The phenolic acids and flavonoids like quercetin, gallic acid, sinapic acid, etc were identified. The DFT study was done for major phytochemicals of ME extract to evaluate the most responsible bioactive molecule for antioxidant activity. The Gallic acid has the lowest bond dissociation energy (BDE) 314.9 kcal/mol in gas, 309.2 kcal/mol in methanol respectively along with the highest value of radical stabilization energy (RSE) 29.5 kcal/mol. Conclusion: It revealed that gallic acid is the most responsible antioxidant among the other compounds and ME is the best solvent system for extraction followed by CH.

scholarly journals Antioxidant Activities and Total Phenolics of Acacia Honey

2009 ◽  
Vol 27 (Special Issue 1) ◽  
pp. S245-S247 ◽  
Author(s):  
M. Krpan ◽  
K. Marković ◽  
G. Šarić ◽  
B. Skoko ◽  
M. Hruškar ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Antiradical Activity ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Optical Rotation ◽  
Total Phenolic ◽  
Antioxidant Power ◽  
Dpph Method ◽  
Acacia Honey

The antioxidant activities and total phenolic content of 30 samples of acacia honey from Croatian territory were analysed. Phenolics were determined by the modified Folin-Ciocalteu method, antiradical activity by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method and potential antioxidant activity using the ferric reducing antioxidant power (FRAP) method. In all samples, physicochemical parameters (water content, electrical conductivity, total reducing sugars, sucrose content, acidity, hydroxymethylfurfural content, prolin content, optical rotation, diastase activity and invertase activity) were measured according to Croatian legislation and International regulatory standards. Honey can be considered as a dietary supplement as it contains some important components including α-tocopherol, ascorbic acid, flavonoids and phenolics. The composition and properties of honey are dependent on floral origins, climatic conditions of the produced area, processing and storage methods. The results of physicochemical analyses showed that all the values of investigated parameters are in agreement with the current legislation. Phenolic content ranged from 31.72 mg/kg to 80.11 mg/kg, antiradical activity expressed as IC50 ranged from 61.28% to 253.47% and antioxidant activity expressed as FRAP value from 6.95 to 142.43. A positive correlation was observed between total phenolic content and antioxidant activity, indicating that phenolic compounds are mainly responsible for the antioxidant power of acacia honey.

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