PL
W pracy określono poziom różnych form błonnika w 22 odmianach marchwi uprawianej w jednakowych warunkach agrotechnicznych i klimatycznych. Marchew oceniano przez dwa kolejne lata uprawy, koncentrując się na ilości i jakości błonnika i pektyn, jako podstawowych komponentów decydujących o strukturze marchwi świeżej i przetworzonej oraz wartości dietetycznej. Ustalono, że poszczególne odmiany różnią się istotnie (p<0.05) pod względem zawartości obu analizowanych składników.
EN
The levels of different fibre forms in 22 carrot varieties cultivated in equal agrotcultural and climatic conditions were determined in the study. Carrot was assayed during two consecutive years of cultivation in respect to quantity and quality of fibre and pectins, i.e. two basic components crucial for structure of raw and processed carrot, and also its dietetic value. It was found that individual varieties differed significantly with regard to content of both these components. Total content of acidic detergent fibre in the analysed varieties of carrot was in the range from 9.45±0.02 to 19.92±0.02mg/100g of dry matter; cellulose constituted 68-87% of ADF. From among investigated varieties the highest content of fibre was found in the variety Tito, and it contained 68% of cellulose and 32% of lignins. From dietetic point of view, varieties characterised by high content of fibre and low content of lignins, such as Canada, Bangor, Maksima, and first of all Joba, should be preferred. It is generally considered that pectin substances are present in carrot in very small amounts. In the analysed samples pectins constituted from 5.21±0.04 to 24.14±0.05% of dry matter. Nevertheless, in majority of investigated varieties content of pectins did not exceed 10% and only in varieties Katmandu and Vitana it was higher. Pectic substances cause binding of water and different harmful products, including metals. More than 50% of total are pectins reacting with ion Ca2+.