{Reference Type}: Journal Article
{Author}: Kalogeropoulos, Nick; Yanni, Amalia E.; Koutrotsios, Georgios; Aloupi, Maria
{Year}: 2013
{Title}: Bioactive microconstituents and antioxidant properties of wild edible mushrooms from the island of Lesvos, Greece
{URL}: http://www.sciencedirect.com/science/article/pii/S027869151300032X
http://pdn.sciencedirect.com/science?_ob=MiamiImageURL&_cid=271257&_user=3360835&_pii=S027869151300032X&_check=y&_origin=article&_zone=toolbar&_coverDate=2013--31&view=c&originContentFamily=serial&wchp=dGLzVBA-zSkzk&md5=6aefe36cae6429012fb9a579a56e8f01&pid=1-s2.0-S027869151300032X-main.pdf 全文链接
{Tag}: 0
{Star}: 0
{Journal}: Food and Chemical Toxicology
{Volume}: 55
{Issue}: 0
{Pages}: 378-385
{Date Displayed}: 2013/5//
{Alternate Title}: Food and Chemical Toxicology
{ISBN/ISSN}: 0278-6915
{Keywords}: Mushrooms; Ergosterol; Polyphenols; Terpenic acids; Antioxidant activity; Metal chelating
{Abstract}: Crude composition, fatty acids, sterols, total phenolic content (TPC), individual polyphenols and terpenic acids were determined in five wild edible mushrooms species (Lactarius deliciosus, Lactarius sanguifluus, Lactarius semisanguifluus, Russula delica, Suillus bellinii) from Lesvos Island, Greece. In addition, the DPPH scavenging capacity, the ferric ion reducing power (FRAP) and the ferrous ion chelating activity of mushroom methanolic extracts were assessed. Among sterols, ergosterol predominated at concentrations 9.2–18.0 mg/100 g fw. Total phenolic content of mushroom extracts ranged from 6.0 to 20.8 mg GAE/100 g fw. Up to 19 simple polyphenols were determined in mushrooms extracts, the more abundant being p-OH-benzoic acid, p-OH-phenylacetic acid, o-coumaric acid, ferulic acid and chrysin. In addition, the triterpenic acids oleanolic and ursolic were detected for the first time in mushrooms. All species exerted antioxidant activity and ferrous ion chelating capacity. Principal component analysis revealed good correlations between TPC, DPPH and FRAP but not with metal chelating activity. It seems that mushrooms polyphenols exert antiradical and reducing activities, but they are not strong metal chelators, the observed chelating ability being probably due to other classes of compounds.

To our knowledge, this is the first report on the bioactive microconstituents and antioxidant activity of wild Greek edible mushrooms.

{Reference Type}: Journal Article
{Author}: Zeng, Wei-Cai; Zhang, Wen-Chang; Zhang, Wen-Hua; Shi, Bi
{Year}: 2013
{Title}: Antioxidant activity and characterization of bioactive polypeptides from bovine hair
{URL}: http://www.sciencedirect.com/science/article/pii/S1381514813000035
http://pdn.sciencedirect.com/science?_ob=MiamiImageURL&_cid=271634&_user=3360835&_pii=S1381514813000035&_check=y&_origin=article&_zone=toolbar&_coverDate=2013--31&view=c&originContentFamily=serial&wchp=dGLbVBA-zSkzV&md5=cdf13e318fd4640d3eb3b767fba85e5b&pid=1-s2.0-S1381514813000035-main.pdf 全文链接
{Tag}: 0
{Star}: 0
{Journal}: Reactive and Functional Polymers
{Volume}: 73
{Issue}: 3
{Pages}: 573-578
{Date Displayed}: 2013/3//
{Alternate Title}: Reactive and Functional Polymers
{ISBN/ISSN}: 1381-5148
{Keywords}: Bovine hair; Polypeptide; Oil oxidation; Antioxidant activity; Characterization
{Abstract}: The antioxidant activity and food protection effect of bioactive polypeptides from bovine hair were investigated. In various in vitro tests, polypeptides showed a strong reducing power and a remarkable antioxidant capability to scavenge free radicals (ABTS, superoxide and hydroxyl radicals). Moreover, polypeptides also exhibited a significant food protection effect to inhibit the oxidation of edible oil by controlling the peroxide value (POV). Furthermore, by using gel filtration chromatography (GFC), high performance size exclusion chromatography (HPSEC), amino acid analysis and atomic force microscopy (AFM), an antioxidant polypeptide (APB) was purified and characterized with a molecular weight of 18.7 KDa in the form of spherical lumps, which was composed of 17 kinds of amino acids and contained sulfydryl group. Our results suggested that the antioxidant polypeptide from bovine hair could be a new potential source for preparing natural antioxidant applied in oil or oil-rich food.

{Reference Type}: Journal Article
{Author}: Chidambaram, Uma; Pachamuthu, Vanitha; Natarajan, Suganya; Elango, Bhakkiyalakshmi; Suriyanarayanan; Ramkumar, Kunga Mohan
{Year}: 2013
{Title}: In vitro evaluation of free radical scavenging activity of Codariocalyx motorius root extract
{URL}: http://www.sciencedirect.com/science/article/pii/S1995764513600218
http://pdn.sciencedirect.com/science?_ob=MiamiImageURL&_cid=280158&_user=3360835&_pii=S1995764513600218&_check=y&_origin=article&_zone=toolbar&_coverDate=2013--31&view=c&originContentFamily=serial&wchp=dGLzVlk-zSkWA&md5=37e60ce145cdff454bed84687de396ac&pid=1-s2.0-S1995764513600218-main.pdf 全文链接
{Tag}: 0
{Star}: 0
{Journal}: Asian Pacific Journal of Tropical Medicine
{Volume}: 6
{Issue}: 3
{Pages}: 188-194
{Date Displayed}: 2013/3//
{Alternate Title}: Asian Pacific Journal of Tropical Medicine
{ISBN/ISSN}: 1995-7645
{Keywords}: Codariocalyx motorius; Antioxidant activity; Medicinal plants; Polyphenols
{Abstract}: Objective
To determine the phenolic content in Codariocalyx motorius root extract and to evaluate its antioxidant properties using various in vitro assay systems.
Methods
The antioxidant activity was evaluated based on scavenging of 1,1-diphenyl-2-picrylhydrazyl, hydroxyl radicals, superoxide anions, nitric oxide, hydrogen peroxide, peroxynitrite, reducing power and by inhibition of lipid peroxidation which was estimated in terms of thiobarbituric acid reactive substances.
Results
The root extract of the Codariocalyx motorius (C. motorius) exhibited potent total antioxidant activity that increased with increasing amount of extract concentration, which was compared with standard drug such as quercetin, butylated hydroxytoluene, tocopherol at different concentrations. The different concentrations of the extracts showed inhibition on lipid peroxidation. In addition, the extracts had effective reducing power, free radical scavenging, super oxide anion scavenging, nitric oxide scavenging, lipid peroxidation, and total phenolic content depending on concentration. High correlation between total phenolic contents and scavenging potential of different reactive oxygen species (r2=0.831–0.978) indicated the polyphenols as the main antioxidants.
Conclusions
Codariocalyx motorius (C. motorius) root possess the highly active antioxidant substance which can be used for the treatment of oxidative stress-related diseases.

{Reference Type}: Journal Article
{Author}: Stanic-Vucinic, Dragana; Prodic, Ivana; Apostolovic, Danijela; Nikolic, Milan; Cirkovic Velickovic, Tanja
{Year}: 2013
{Title}: Structure and antioxidant activity of β-lactoglobulin-glycoconjugates obtained by high-intensity-ultrasound-induced Maillard reaction in aqueous model systems under neutral conditions
{URL}: http://www.sciencedirect.com/science/article/pii/S0308814612016615
{Tag}: 0
{Star}: 0
{Journal}: Food Chemistry
{Volume}: 138
{Issue}: 1
{Pages}: 590-599
{Date Displayed}: 2013/5/1/
{Alternate Title}: Food Chemistry
{ISBN/ISSN}: 0308-8146
{Keywords}: β-Lactoglobulin; Ultrasound; Maillard reaction; Food processing; Antioxidant activity
{Abstract}: Sonication is a new processing technology in the dairy industry. The aim of this study was to test glycation of β-lactoglobulin (BLG) in Maillard reaction (MR) induced by high-intensity ultrasound in aqueous solution under neutral conditions at 10–15 °C, which is not favourable for the MR. BLG was sonicated in the presence of glucose, galactose, lactose, fructose, ribose and arabinose. Formation of Maillard reaction products (MRPs) was monitored by mass spectrometry, spectrophotometry and fluorimetry. Ultrasound treatment resulted in formation of MRPs with all tested carbohydrates. Ribose induced the highest degree of modification resulting in 76% of BLG modified and an average of three anhydroribose units attached. Circular dichroism spectra analyses indicated only minor alterations in secondary and tertiary structures. MRP obtained by ultrasound exhibited 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity and possessed increased iron-chelating activity and reducing power. High-intensity ultrasound efficiently promotes BLG-glycoconjugates formation by MR in aqueous solutions under non-denaturing conditions.