Content of basic components and volatile oils in green dill as depending on the height and usable parts of plants
2007
Lisiewska, Zofia | Kmiecik, Waldemar | Slupski, Jacek
The aim of the present study was to establish the content of basic chemical components (dry matter, ash, reducing sugars, total sugars, starch, dietary fiber, total nitrogen, protein nitrogen, ascorbic acid, titratable acidity) and volatile oils in dill plants. The investigated material consisted of the following parts of dill plants: leaf blade, petiole, whole leaf, stem and whole plants harvested at the plant height of 20, 30, 40, 50 and 60 cm. Differences in the level of the analyzed components depending on the part of dill plants to a great degree exceeded these depending on the plant height. The highest content of all components was ascertained in the leaf blade. The smallest contents of dry matter, ash, starch, dietary fiber, total nitrogen and protein nitrogen, total acids and L-ascorbic acid were found in the stem, and of sugars and volatile oils in the petiole. With the growth of plants, all analyses showed decreasing tendencies in the content of ash, total nitrogen and protein nitrogen, variation in the level of dry matter, sugars, starch and L-ascorbic acid, and an increasing tendency in the content of dietary fiber, total acids and volatile oils, with the exception of stems, where the level of volatile oils was stable.
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