نتایج جستجو برای: olive oil adulteration

تعداد نتایج: 147879  

Journal: :journal of food biosciences and technology 2016
m. homapour m. ghavami z. piravivanak e.s. hosseini

olive oil in general due to it monounsaturation, stability, nutritive value, consistency, taste andaroma might be considered as a valuable and luxury oil. annual importation of olive oil to iran frommediterranean countries is on a large scale although some olive oils are produced in iran particularly in the northand some plantation has been applied in different provinces particularly in fars. t...

Journal: :journal of food quality and hazards control 0
s. azadmard-damirchi [email protected] m. torbati department of food science and technology, faculty of nutrition, tabriz university of medical sciences, tabriz, iran

vegetable oils and fats have a big contribution in our diet as cooking or frying oil, salad oil or in food products formulation. they are important from nutritional and economical point of views. their authenticity is a serious issue since old time. some edible oils and fats such as olive oil, cocoa butter and milk fat are so expensive which makes tempting to adulterate them with other lower pr...

M. Torbati, S. Azadmard-Damirchi,

Vegetable oils and fats have a big contribution in our diet as cooking or frying oil, salad oil or in food products formulation. They are important from nutritional and economical point of views. Their authenticity is a serious issue since old time. Some edible oils and fats such as olive oil, cocoa butter and milk fat are so expensive which makes tempting to adulterate them with other lower pr...

Journal: :Applied spectroscopy 2016
Naomi McReynolds Juan M Auñón Garcia Zoe Guengerich Terry K Smith Kishan Dholakia

We demonstrate the ability to discriminate between five brands of commercially available extra-virgin olive oil (EVOO) using Raman spectroscopy or fluorescence spectroscopy. Data was taken on both a 'bulk optics' free space system and on a compact handheld device, each capable of taking both Raman and fluorescence data. With the compact Raman device we achieved an average sensitivity and specif...

Journal: : 2022

The spectroscopy of molecular vibrations using mid-infrared or near-infrared techniques was used more and to characterize different compounds, including edible oil, in order monitor any changes detect fraudulent modifications. This article presents a new method for quantitative adulteration extra virgin olive oil (EVOO) corn germ (CGO) with mineral such as paraffin (PO). A Fourier transform inf...

2014

Animal fats (camel, sheep, goat, rabbit and chicken) and vegetable oils (corn, sunflower, palm oil and olive oil) were substituted with different proportions (1, 5, 10 and 20%) of lard. Fatty acid composition in TG and 2-MG were determined using lipase hydrolysis and gas chromatography before and after adulteration. Results indicated that, genuine lard had a high proportion (60.97%) of the tota...

E.S. Hosseini M. Ghavami M. Homapour Z. Piravivanak

Olive oil in general due to it monounsaturation, stability, nutritive value, consistency, taste andaroma might be considered as a valuable and luxury oil. Annual importation of olive oil to Iran fromMediterranean countries is on a large scale although some olive oils are produced in Iran particularly in the northand some plantation has been applied in different provinces particularly in Fars. T...

Journal: :Journal of agricultural and food chemistry 2003
Georgia Vigli Angelos Philippidis Apostolos Spyros Photis Dais

A combination of (1)H NMR and (31)P NMR spectroscopy and multivariate statistical analysis was used to classify 192 samples from 13 types of vegetable oils, namely, hazelnut, sunflower, corn, soybean, sesame, walnut, rapeseed, almond, palm, groundnut, safflower, coconut, and virgin olive oils from various regions of Greece. 1,2-Diglycerides, 1,3-diglycerides, the ratio of 1,2-diglycerides to to...

2015
Marco Santonico Simone Grasso Francesco Genova Alessandro Zompanti Francesca Romana Parente Giorgio Pennazza

Methods for the chemical and sensorial evaluation of olive oil are frequently changed and tuned to oppose the increasingly sophisticated frauds. Although a plethora of promising alternatives has been developed, chromatographic techniques remain the more reliable yet, even at the expense of their related execution time and costs. In perspective of a continuous increment in the number of the anal...

Journal: :Molecules 2018
Xinjing Dou Jin Mao Liangxiao Zhang Huali Xie Lin Chen Li Yu Fei Ma Xiupin Wang Qi Zhang Peiwu Li

Adulteration of edible oils has attracted attention from more researchers and consumers in recent years. Complex multispecies adulteration is a commonly used strategy to mask the traditional adulteration detection methods. Most of the researchers were only concerned about single targeted adulterants, however, it was difficult to identify complex multispecies adulteration or untargeted adulteran...

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