Dietary Intake of Essential Elements (Na, K, Mg, Ca, Mn, Zn, Fe, Cu, Mo, Co) from Tofu Consumption. 2021

Soraya Paz, and Carmen Rubio, and Ángel J Gutiérrez, and Dailos González-Weller, and Arturo Hardisson
Department of Toxicology, Universidad de La Laguna, La Laguna, Tenerife, Canary Islands, Spain. spazmont@ull.edu.es.

Tofu is one of the most consumed soybean products. Currently, tofu is consumed in vegan and vegetarian diets to avoid meat. However, it is necessary to determine the content of essential elements to assess the dietary intake. Essential elements (Na, K, Mg, Ca, Mn, Zn, Fe, Cu, Mo, Co) were determined in 130 samples of tofu by ICP-OES (inductively coupled plasma optical emission spectroscopy). The highest element content was found in flavoured tofu; the most notable were Na (2519 mg/kg wet weight) and Fe (19.5 mg/kg ww). Consumption of 200 g/day of flavoured tofu by adults would mean a high contribution of Cu (46.9% women, 38.1% men), Fe (55.7% women, 65.0% men) and Na (25.2% adults) to its AI (adequate intakes) sets by the EFSA (European Food Safety Authority). Natural tofu would mean a remarkably Mn contribution (50% adults) to the AI. Tofu could be an important source of essential elements such as Mg, Mn, Na, Cu and Fe.

UI MeSH Term Description Entries
D008297 Male Males
D004435 Eating The consumption of edible substances. Dietary Intake,Feed Intake,Food Intake,Macronutrient Intake,Micronutrient Intake,Nutrient Intake,Nutritional Intake,Ingestion,Dietary Intakes,Feed Intakes,Intake, Dietary,Intake, Feed,Intake, Food,Intake, Macronutrient,Intake, Micronutrient,Intake, Nutrient,Intake, Nutritional,Macronutrient Intakes,Micronutrient Intakes,Nutrient Intakes,Nutritional Intakes
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013057 Spectrum Analysis The measurement of the amplitude of the components of a complex waveform throughout the frequency range of the waveform. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Spectroscopy,Analysis, Spectrum,Spectrometry
D014131 Trace Elements A group of chemical elements that are needed in minute quantities for the proper growth, development, and physiology of an organism. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Biometal,Biometals,Trace Element,Trace Mineral,Trace Minerals,Element, Trace,Elements, Trace,Mineral, Trace,Minerals, Trace
D015032 Zinc A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
D045730 Soy Foods Foods made from GLYCINE MAX. Soy foods are high in DIETARY PROTEINS and PHYTOESTROGENS such as ISOFLAVONES. Soy Sauce,Texturized Soy Protein,Tofu,Bean Curd, Soy,Miso,Natto,Soy Cheese,Tempeh,Texturized Vegetable Protein,Bean Curds, Soy,Cheese, Soy,Cheeses, Soy,Curd, Soy Bean,Curds, Soy Bean,Food, Soy,Foods, Soy,Protein, Texturized Soy,Protein, Texturized Vegetable,Proteins, Texturized Soy,Sauce, Soy,Soy Bean Curd,Soy Bean Curds,Soy Cheeses,Soy Food,Soy Protein, Texturized,Soy Proteins, Texturized,Texturized Soy Proteins,Vegetable Protein, Texturized,Vegetable Proteins, Texturized
D059022 Food Safety Activities involved in ensuring the safety of FOOD including avoidance of bacterial and other contamination. Safety, Food

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