Journal of Food and Nutrition Research
ISSN (Print): 2333-1119 ISSN (Online): 2333-1240 Website: http://www.sciepub.com/journal/jfnr Editor-in-chief: Prabhat Kumar Mandal
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Journal of Food and Nutrition Research. 2018, 6(4), 234-241
DOI: 10.12691/jfnr-6-4-5
Open AccessArticle

Influence of Treatment and Cooking Time on the Antioxidant Capacity of Different Vegetables Used in Atlantic and Mediterranean Diets

Celia García-Rodríguez1, Mª Ángeles Romero-Rodríguez1, and Mª Lourdes Vázquez-Odériz1,

1Áreas de Nutrición y Bromatología y Tecnología de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, Campus de Lugo, 27002 Lugo (Spain)

Pub. Date: April 25, 2018

Cite this paper:
Celia García-Rodríguez, Mª Ángeles Romero-Rodríguez and Mª Lourdes Vázquez-Odériz. Influence of Treatment and Cooking Time on the Antioxidant Capacity of Different Vegetables Used in Atlantic and Mediterranean Diets. Journal of Food and Nutrition Research. 2018; 6(4):234-241. doi: 10.12691/jfnr-6-4-5

Abstract

Evidence from epidemiological studies has strongly suggested that diets rich in fruits and vegetables play a vital role in disease prevention. The aim of this study was to determine total phenolic content (TPC) and reducing power (RP) for nine vegetables that are normally consumed in Atlantic and Mediterranean diets. In this study vegetables were analyzed when fresh, and then again after heat processes (cooking in boiling water and steam) were applied for different lengths of time. The vegetable showing highest total phenolic content was the Brussels sprout; while zucchini had the lowest content. Green beans presented the highest reducing power, while peppers and cauliflower presented the lowest values. Heat treatment significantly reduced the concentration of total phenolic content and reducing power in all of tested vegetables; however, steam cooking resulted in lower losses. The loss of the total phenolic content and reducing power were higher when heat processes were applied for longer amounts of time. From a nutritional standpoint, it is advisable to use the least aggressive method (steaming) for as short a time as possible

Keywords:
total phenolic content reducing power Atlantic and Mediterranean diet vegetables

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