Naslov
Fiber rich biscuits as a source of essential trace elements – zinc and copper

Autori
Vujić, Lovorka ; Šebečić, Blaženka ; Vedrina-Dragojević, Irena ; Vitali, Dubravka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstract / Zorc B - Zagreb : Farmaceutsko-biokemijski fakultet Sveučilišta u Zagrebu, 2005, 214-214

Skup
Treći hrvatski kongres farmacije s međunarodnim sudjelovanjem

Mjesto i datum
Cavtat, Hrvatska, 27.04.2005. - 30.04.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
biscuit; fiber; zinc; copper

Sažetak
Deficit of essential minerals involved in entire range of biochemical functions, are signifficant nutritional problem in the world today. Zinc is involved in maintaining the structure and function of biomembranes and it is used by over 300 metalloenzymes and regulatory proteins thus being responsible for numerous functions in the human body such as regulation of blood pressure and salt balance, alcohol catabolism, toxic oxygen removal, transmission of signals within the cell, gluconeogenesis etc. Zinc deficiency may lead to weight loss, alopecia and emotional instability. The copper metaloenzymes are involved in a large number of oxigen-using reactions and symptoms of copper deficiency include hypercholesterolemia, demineralisation of bones and fragility of large arteries. Therefore, it is of interest to know intake of essential elements by different food. The aim of our study was to evaluate intake of those elements by experimentally prepared dietetic biscuits enriched with different dietary fibres. Investigated trace elements were assayed in white wheat flour classic biscuit, standard dietetic tea biscuit and in dietetic tea biscuits enriched with whole grain flour, soya flour, carob flour, amaranth flour, inulin, oat-fibre, wheat fibre or apple fibre. After microwave digestion zinc and copper contents were determinated by inductively coupled plasma atomic emission spectrometry (ICP-AES). The contents of zinc and copper in investigated biscuits ranged from 0.135 to 3.845 mg/100g and from 0.166 to 0.463 mg/100g, respectively. Considering recommended daily intake of Zn (on an average 11 mg/day for adults) and Cu (on an average 1 mg/day for adults), 100 g of enriched biscuit can cover up to 35% of daily needs of Zn and up to 46 % of daily needs of Cu. Regarding these results, investigated enriched dietetic biscuits can be considered as a good source of those essential trace elements in nutrition.

Izvorni jezik
Engleski

Znanstvena područja
Farmacija

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