Vegetables contain generally 90-96% water while for fruit normal water content is between 80 and 90%. 2.2.2 Mineral substances. Mineral substances are present as salts of organic or inorganic acids or as complex organic combinations (chlorophyll, lecithin, etc.); they are in many cases dissolved in cellular juice.
Definition: A hazelnut is a type of tree nut similar to a filbert. The word hazelnut is sometimes used interchangeably with the word filbert, and they are related, but the two grow on trees of different species.Moreover, there are certain types of hazelnuts that are actually hybrids of filberts and hazelnuts.ike filberts, hazelnuts can be eaten raw or roasted. Hazelnuts have a hard exterior shell, and the nuts themselves have an outer skin which can have a bitter flavor. This outer skin on the hazelnut can removed by blanching the nut. Also Known As: 1  Filbert.
Hazelnut trees (Corylus avellana) are deciduous trees that thrive in U.S. Department of Agriculture plant hardiness zones 4 through 9. The trees have a fast growth rate and reach heights of 15 to 40 feet with a spread of 10 to 12 feet.