The antioxidant content and activity of commercial tomato products differing in variety and processing were studied. Two procedures for extracting hydrophilic and lipophilic antioxidants, namely, two-step 0.1 M phosphate buffer (pH 3.0 and 7.4) extraction and tetrahydrofuran extraction followed by petroleum ether fractionation, were developed. Carotenoids (lycopene, beta-carotene, and lutein) and ascorbic acid were analyzed by HPLC with spectrophotometric and electrochemical detectors, respectively. Total phenolics were determined by using the Folin-Ciocalteu reagent. The antioxidant activity was studied by the following three model systems: (a) the xanthine oxidase (XOD)/xanthine system, which generates superoxide radical and hydrogen pero...
In this study we examined the antioxidants content (polyphenols and carotenoids) and the total hydr...
Abstract:Tomato is one of the commonly consumed vegetables with high antioxidant capacity. The objec...
In this study we examined the antioxidants content (polyphenols and carotenoids) and the total hydr...
Various tomato products (commercial tomato pulp, tomato puree, and tomato paste obtained from the sa...
The radical scavenging activity and the antioxidant content of fresh and air-dried tomatoes were inv...
The antioxidant activities of two freeze-dried tomato powders as additives for food fortification an...
Tomato products (pulp, puree and paste) submitted to accelerated aging (30, 40 and 50 \u25e6C for 3 ...
The objective of the study was to compare the effect of organic and conventional cultivation on the ...
The objective of the study was to compare the effect of organic and conventional cultivation on the ...
In the present study we assayed the antioxidant activity of lipophilic extracts obtained from differ...
In the present study we assayed the antioxidant activity of lipophilic extracts obtained from differ...
he objective of the present work was to establish the antioxidative ability linked to lipophilic, hy...
he objective of the present work was to establish the antioxidative ability linked to lipophilic, hy...
he objective of the present work was to establish the antioxidative ability linked to lipophilic, hy...
Tomato (Lycopersicon esculentum Mill.) is the second most important vegetable crop worldwide and a ...
In this study we examined the antioxidants content (polyphenols and carotenoids) and the total hydr...
Abstract:Tomato is one of the commonly consumed vegetables with high antioxidant capacity. The objec...
In this study we examined the antioxidants content (polyphenols and carotenoids) and the total hydr...
Various tomato products (commercial tomato pulp, tomato puree, and tomato paste obtained from the sa...
The radical scavenging activity and the antioxidant content of fresh and air-dried tomatoes were inv...
The antioxidant activities of two freeze-dried tomato powders as additives for food fortification an...
Tomato products (pulp, puree and paste) submitted to accelerated aging (30, 40 and 50 \u25e6C for 3 ...
The objective of the study was to compare the effect of organic and conventional cultivation on the ...
The objective of the study was to compare the effect of organic and conventional cultivation on the ...
In the present study we assayed the antioxidant activity of lipophilic extracts obtained from differ...
In the present study we assayed the antioxidant activity of lipophilic extracts obtained from differ...
he objective of the present work was to establish the antioxidative ability linked to lipophilic, hy...
he objective of the present work was to establish the antioxidative ability linked to lipophilic, hy...
he objective of the present work was to establish the antioxidative ability linked to lipophilic, hy...
Tomato (Lycopersicon esculentum Mill.) is the second most important vegetable crop worldwide and a ...
In this study we examined the antioxidants content (polyphenols and carotenoids) and the total hydr...
Abstract:Tomato is one of the commonly consumed vegetables with high antioxidant capacity. The objec...
In this study we examined the antioxidants content (polyphenols and carotenoids) and the total hydr...