نتایج جستجو برای: olive oil adulteration

تعداد نتایج: 147879  

2005
Fernando Peña Soledad Cárdenas Mercedes Gallego Miguel Valcárcel

Due to its higher price, compared to other edible oils, control of adulteration of the olive oil is one of the main aspects to be evaluated in its quality control. Adulteration with hazelnut oil is one of the most difficult to be detected due to the great similarity existing in the composition of hazelnut and olive oils; both virgin olive oil and olive oil are subjected to that kind of adultera...

2014
Zheng Xu Robert H. Morris Martin Bencsik Michael I. Newton

The detection of adulteration in edible oils is a concern in the food industry, especially for the higher priced virgin olive oils. This article presents a low field unilateral nuclear magnetic resonance (NMR) method for the detection of the adulteration of virgin olive oil that can be performed through sealed bottles providing a non-destructive screening technique. Adulterations of an extra vi...

Journal: :iranian journal of biotechnology 2013
zohreh rabiei

for many years, assessment of olive oil quality and itsauthenticity confimation has been of great importanceto guarantee olive oil safety in compliance with legislations. these include the investigation of olive oil purityand quality by analyzing several parameters such as fattyacid composition, sterols, phenolic compounds, triacylglycerol and etc, through performing conventional andadvanced hy...

Journal: :Journal of agricultural and food chemistry 2003
E Consuelo López-Díez Giorgio Bianchi Royston Goodacre

The authentication of extra virgin olive oil and its adulteration with lower-priced oils are serious problems in the olive oil industry. In addition to the obvious effect on producer profits, adulteration can also cause severe health and safety problems. A number of techniques, including chromatographic and spectroscopic methods, have recently been employed to assess the purity of olive oils. I...

2014

Extra Virgin Olive Oil (EVOO) is a premium product that can command a higher price than “standard” olive oils. This makes it highly susceptible to fraudulent activity. A report by the E.U. Committee on the Environment, Public Health, and Food Safety says olive oil is among the products most prone to food fraud. There were 267 oil adulteration incidents reported to the U.S. Pharmaceutical Food F...

2013
Avinash Dalmia George L. Perkins

Among edible oils, olive oil shows important and outstanding characteristics due to its differentiated sensorial qualities (taste and flavor) and higher nutritional value. It is an important oil that is high in nutritional value due to its high content of antioxidants (including vitamin E) 1. Several health benefits, such as its ability to lower LDL cholesterol and its anti-inflammatory activit...

2014
A. J. R. Bauer

Olive oil is among the most commonly adulterated food products. Raman spectroscopy has the potential to be utilized in measurements of olive oil to establish purity from adulteration with other, less expensive, oils. This application note reviews some of the most compelling data present in recent scientific literature to support this claim. Background and Motivation Extra‐virgin olive oil is in...

2000
Vincent Baeten Ramón Aparicio

The European project FAIR-CT96-5053 concerned the application of the FT-Raman and infrared spectroscopy in food chemistry and quality control. Our research mainly concerned the study of the potential of Raman spectroscopy and the comparison with the results achieved in infrared spectroscopy. The discrimination of virgin olive oil from other edible oils, and the detection and quantification of v...

Journal: :Journal of agricultural and food chemistry 2005
Georgia Fragaki Apostolos Spyros George Siragakis Emmanuel Salivaras Photis Dais

High-field 31P NMR (202.2 MHz) spectroscopy was applied to the analysis of 59 samples from three grades of olive oils, 34 extra virgin olive oils from various regions of Greece, and from different olive varieties, namely, 13 samples of refined olive oils and 12 samples of lampante olive oils. Classification of the three grades of olive oils was achieved by two multivariate statistical methods a...

Journal: :Scientific American 1881

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