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• The Micropropagation of Cornus mas and Hippophae rhamnoides

  105-112

  Andrea Baranyai

  Views:

  67

  With the help of tissue culture techniques we managed to establish and maintain the shoot tip culture of Cornus mas and Hippophae rhamnoides. The aim of this study was to establish a practical method for the rapid and large scale multiplication of these species. We have applied various culture media (DCR, BTM). In terms of the hormone level BAP has proved to be the best. We managed to solve the start and the multiplication of cultures. Currently rooting experiments are being conducted.

• The use of Hungarian herbs and fruits for functional food production

  197-201

  Laura Jurecska

  Views:

  113

  The bioactive components are usually sensitive to environmental impacts and circumstances of technological processes. During the production of functional foods it is necessary to preserve the stability of bioactive components. An often applied method of stability preservation is microencapsulation. The aim of our research is to encapsulate herbs (lemon balm, garden and Spanish thyme) and color-rich fruits (blackberry, cherry, elderberry and sea-buckthorn) grown in Hungary and having significant antioxidant capacity. Extracts were made from these herbs and fruits with different extractans and the antioxidant capacity of them was studied applying DPPH (1,1-diphenyl-2- picrylhydrazyl) method. These extracts and fruit concentrates were used in microencapsulation experiments applying „in situ gelation” method. The antioxidant capacity of the microcapsules was determined immediately after preparation and after 2 and 4 weeks of storage. Comparing the antioxidant capacity of the extracts, concentrates and the stored microcapsules a proposal was given for the optimal composition of the encapsulating mixture and long-term storage experiments were started.

• Micropropagati on of Berry Fruits (Cornus Mas, Hippophae Rhamnoides, Lonicera Caerulea, Amelenchier Alnifolia, And Aronia Melanocarpa)

  137-140

  István Dencső

  Views:

  94

  We resolved the in vitro micro propagati on of some berry fruits, especially those which contains more fl avonoids, and anti oxidants. Shoot tip cultures were established, and the rooting and acclimati zati on procedures were successfully.