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Optimisation of microwave-assisted extraction of flavonoids and phenolics from celery (Apium graveolens L.) leaves by response surface methodology
Box-Behnken experimental design total flavonoids total phenolics antioxidant activity
2016/12/9
The conditions for microwave-assisted extraction (MAE) of total flavonoids (TF) and total phenols (TP), and antioxidant activity from celery (Apium graveolens L.) leaves by response surface methodolog...
Characterisation of phenolics and other quality parameters of different types of honey
physicochemical parameters phenolic acids flavonoids
2016/7/6
In order to provide a general picture of phytochemical characteristics of nectar honey, honeydew, and mixed honeys, an overall comparison of physicochemical parameters, and phenolic profile as well as...
Prediction of Total Phenolics and Flavonoids Contents in Chinese Wild Rice (Zizania latifolia) Using FT-NIR Spectroscopy
Total Phenolics Flavonoids Contents
2016/6/2
Total phenolics and flavonoids contents in Chinese wild rice were predicted using Near Infrared (NIR) spectroscopy as a rapid method. A Partial Least Square (PLS) algorithm was applied to perform the ...
Antioxidant Properties of Phenolics in Castanea sativa Mill. Extracts
Castanea sativa Mill antioxidant activity phenolic compounds lipid peroxidation refractory response
2010/3/24
Using electron paramagnetic resonance (EPR) spectroscopy, antioxidant properties of chestnut extracts have been investigated as a source of phenolic compounds. In addition to their high antioxidant ac...
Free and bound phenolics in 21 japonica cultivars (Oryza sativa) of rice bran and polished rice were analyzed using 3D-HPLC. Although we observed high content variations among cultivars, the major fre...
Reactions of Plant Phenolics with Food Proteins and Enzymes under Special Consideration of Covalent Bonds
phenolic acids flavonoids food protein/enzyme derivatization
2009/6/17
Secondary plant metabolites are important native food components, which are becoming more and more interesting due to their physiological effects on human beings. One of the largest groups of these co...
Phenolics, Selenium, Vitamin C, Amino Acids and Pungency Levels and Antioxidant Activities of Two Egyptian Onion Varieties
Phenolics Selenium
2016/5/31
Selenium, vitamin C, pungency, amino acids, phenolics content and antioxidant activities of two Egyptian onion varieties, namely white (Giza-6) and red (Beheri) onions have been studied. Data analysis...
Antioxidant Activities and Total Phenolics of Acacia Honey
antioxidant activity honey phenolics physicochemical parameters
2014/3/10
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...
Effects of blackcurrant and apple mash blending on the phenolics contents, antioxidant capacity, and colour of juices
blackcurrant apple juice phenolic compounds l-ascorbic acid
2014/3/7
The objective of this research was to evaluate the effect of blackcurrant mash blended with apple pulp during juice production and storage on its phenolic composition, antioxidant activity, L-ascorbic...
(1→3), (1→4) -β-glucan and Bound Phenolics in Rolled Oats
rolled oats (1→3),(1→4) -β-glucan bound phenolics
2010/2/3
Rolled oats, a processed oat product, contain about 4 g of (1→3),(1→4)-β-glucan (β-glucan) per 100 g. It also contains 27.0 mg of ferulic acid and 3.5 mg of p-coumaric acid. Moreover, the presence of ...
Molecular Orbital Analysis of Antioxidative Activity of Phenolics from Tessaria integrifolia and Piper elongatum
antioxidative effect semi-empirical MO calculation bond dissociation enthalpy
2010/2/3
Bond dissociation enthalpies (BDEs) for phenolic constituents from Tessaria integrifolia RUIZ. et Pavon and Piper elongatum VAHL. have been calculated using the semi-empirical molecular orbital (MO) m...
An Investigation on Factors Affecting Recovery of Antioxidant Phenolics and Anthocyanins from Red Grape (Vitis vinifera L.) Pomace Employing Water/Ethanol-Based Solutions
Pomace Employing Water/Ethanol-Based Solutions
2008/11/27
Extractions were performed using non-toxic media composed of water/ethanol mixtures and hydrochloric, acetic or tartaric acid. Recovery efficiency was assessed by monitoring the antiradical activity (...
An Investigation on Factors Affecting Recovery of Antioxidant Phenolics and Anthocyanins from Red Grape (Vitis vinifera L.) Pomace Employing Water/Ethanol-Based Solutions
Antioxidant Phenolics Anthocyanins
2016/5/31
Extractions were performed using non-toxic media composed of water/ethanol mixtures and hydrochloric, acetic or tartaric acid. Recovery efficiency was assessed by monitoring the antiradical activity (...
Fractionation and identification of some phenolics extracted from evening primrose seed meal
evening primrose phenolic acids HPLC phenolic compounds
2014/3/3
Crude ethanol and ethyl acetate extracts of evening primrose (Oenothera biennis L.) seed meal were separated into fractions using Silicagel L 100/200 column chromatography and methanol as the mobile p...