Advanced search
Start date
Betweenand


Effect of grain germination and processing temperature on the nutritional composition of raw food diets

Full text
Author(s):
Carolina Bonfanti Fiori
Total Authors: 1
Document type: Master's Dissertation
Press: Piracicaba.
Institution: Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC)
Defense date:
Examining board members:
Solange Guidolin Canniatti Brazaca; Maria Elisabeth Machado Pinto e Silva; Gilma Lucazechi Sturion
Advisor: Solange Guidolin Canniatti Brazaca
Abstract

The search for a healthy lifestyle has motivated many individuals to change their eating habits. The crudivorism, also known as living nourishment or raw food, stands out among the other vegetarian diets due to its fundaments and principles. The adepts of a raw food diet abstain from eating heated food, arguing that raw nutriment contains digestive enzymes that facilitate food digestion in the body. To avoid nutritional deficiencies, nutritional interferences and maintain a predominantly raw diet, proper planning is required, as well as a good selection of appropriate nourishment items. The present study aims at determining the nutritional adequacy of a raw food diet consisted of vegetables, germinated grains and foods of different lipid sources, which were subjected to three processing temperatures. The preparation of the raw food diets and its consequent chemical analyzes were performed in the Human Nutrition laboratory of the Department of Agroindustry, Food and Nutrition from the School of Agriculture \"Luiz de Queiroz\". For the formulation of such raw food diets, it was used a basis diet consisting of potato with peeling, raw tomato, raw kale with stalks and lemon juice. To this diet it was added germinated or non-germinated lentils and, to these samples it was added germinated peanuts or olive oil. Subsequently, they were subjected to different processing temperatures, 25º C, 40ºC and 80ºC. The lentil grains and peanuts had been germinated for 24 hours in absence of light. The diets were classified as D1 (basis diet; germinated lentils; olive oil), D2 (basis diet; germinated lentils, germinated peanuts), D3 (basis diet, nongerminated lentils, olive oil) and D4 (basis diet; non-germinated lentils, germinated peanuts). The germination process and heat treatment interfered on most of the compositions of the analyzed nutrients. The inclusion of germinated lentils into raw food diets provided the increase in moisture, ashes, carbohydrates, soluble fiber, vitamin C, calcium, dialyzable iron, dialyzable nickel as well as reduction of proteins, insoluble fiber, tannins and antioxidant capacity by DPPH and ABTS. Raw food diets at 25°C presented higher levels of ashes, tannins and calcium and lower levels of phytic acid. On the other hand, the diets at 80°C presented higher concentration of soluble fiber, phytic acid, vitamin C, antioxidant capacity by DPPH and ABTS, boron, manganese, dialyzable iron and dialyzable calcium. Raw food diets subjected to 80°C presented remarkable levels of Coliforms at 45ºC, Bacillus cereus, Staphylococcus aureus and Salmonella, according to the current resolution. Nevertheless, diets at 25ºC and at 40ºC presented levels that were higher than the established limits to the analyzed microorganisms. It could be observed that the inclusion of germinated grains to raw food diets yielded higher nutritional changes than did the submission to heat treatment. (AU)

FAPESP's process: 11/16998-5 - Effect of sprouting and temperature on crudivorism diet
Grantee:Carolina Bonfanti Fiori
Support Opportunities: Scholarships in Brazil - Master