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Objective: Rosa canina L., Malus domestica L., Prunus persica L Siebold & Zucc., Cydonia oblonga Mill., Armenica vulgaris Lam., and Pyracantha coccinea M.Roem. are important fruits of the Rosaceae family, used in a wide variety of industries such as food, perfume, cosmetics, paint, beverage, and for economic and medical purposes. Although medicinal plants act with their natural components against diseases, they can cause toxic and unde-sirable side effects. It is important in terms of human health and food safety to examine plants for their heavy metal, mineral, protein and antioxidant capacities before they are used for treatment, food or cosmetic purposes. The heavy metals (Al, Cr, Cu, Co, Zn), minerals (Fe, Mg, Na, Ca, K), protein and antioxidant capacities of some medicinal plants grown in Van-Turkey were determined and their safety in terms of food and in medical uses were evaluated. Material and Method: After the lyophilized plants were solubilized with a wet burning (microwave) device, Al, Cr, Cu, Co, Zn, Fe, Mg, Na, Ca, K elements were analyzed in the ICPOES device. Protein analyzes were per-formed by the Gerthardt Dumatherm method. Cuprac method was used for antioxidant capacity analysis. Results: The measured values were ranged between (in mg kg−1) Al 10.753-20.407, Co 0.007-9.664, Cr 0.119-0.411, Cu 2.409-6.554, Zn 23.426-33.891, Ca 743.0-2501.7, Fe 31.7-117.6, K 3555.2-4202.9, Mg 498.7-1982.9, Na 839.8-1616.0 and Protein (%) 1.45-5.53. Detected heavy metal amounts are in general within acceptable limits determined by WHO (World Health Organization). While the Cuprac values of the plants ranged between 1.13 and 3.62, the Cuprac values for the standard synthetic antioxidants α-tocopherol and BHT were determined as 2.14 and 3.21 µmol TE g−1DW, respectively. In particular, it was determined that Rosa canina extracts showed high activity (3.62 µmol TE g−1DW) comparable to α-tocopherol and BHT. Conclusion: : For centuries, human beings have benefited from plants in the treatment of diseases. Due to the severe side effects of synthetic drugs, people in the modern world also turn to medicinal plants for the treatment of many diseases. However, conscious consumption of medicinal plants by examining them especially in terms of heavy metal amounts will prevent serious health problems in the long run. The study showed that the heavy metal amounts of some plants belonging to the Rosaceae family, which are cultured, used for therapeutic pur-poses and consumed as fruit by the people of Van, are safe for human consumption and medical uses, and their micronutrient, protein and antioxidant capacities are at the desired level for healthy nutrition and therapeutic uses.

Malvaceae familyasının üyelerinden biri olan Alcea cinsi tıbbi öneme sahip bazı türleri içermektedir. Alcea kurdica Alef. (Devegülü Hatmi) tonsilite, gastrik ülsere, zatürreye, boşaltım sistemi enfeksiyonlarına ve saç kırana karşı kullanılan tıbbi bir bitkidir. Bu çalışmanın amacı, devegülü hatmi bitkisi için steril şartlar altında etkili bir çimlendirme yönteminin geliştirilmesi ve bu bitkinin doku kültürü çalışmalarında kullanılabilir hale getirilmesidir. Bu amaç için, steril bir ajan olan sodyum hipokloritin üç farklı konsantrasyonu (%5, %7.5 ve %10), 42°C sıcaklıkta inkübasyonu ve tohum kabuğunun bistüri ile çentiklenmesi uygulamaları test edilmiştir. %5 ve %7.5 sodyum hipoklorit konsantrasyonlarının sterilizasyon için yeterli olmadığı belirlenirken, %10 sodyum hipoklorit konsantrasyonun ise yeterli olduğu gözlenmiştir. Çimlenme indeksi sonuçlarına göre, kabuğu çentiklenen tohumlar hızlıca çimlenirken, 42°C de inkübasyonun çimlenmeyi etkilemediği gözlenmiştir. Yedinci günde, kotiledon, kotiledon sapı ve hipokotil dokuları doku kültürü için kullanılabilir duruma gelmiştir. Sekizinci günde, yapraklar oluşmaya başlamıştır. Yaprak, yaprak sapı ve sürgün ucu eksplantları ise otuzuncu günde doku kültüründe kullanılabilecek duruma gelmiştir. Sonuç olarak, bu çalışma ile tıbbi öneme sahip devegülü hatmi için etkili bir çimlendirme yöntemi geliştirilmiştir.

Devegülü hollyhock is used bypublic for the treatment of certain diseases. This study investigated theappropriate protocols for in vitrocallus formation, regeneration and micropropagation of various explants of14-day and 28-day old Devegülü seedlings germinated from the seeds in a sterileenvironment. Different concentrations of 2,4-dichlorophenoxy acetic acid (2,4-D) were used as plantgrowth regulator and Murashige and Skoog basal medium was used as basic medium.Regenerated plantlets were firstly transferred to rooting medium to promoteroot formation, after that they were planted into soil. Both 14-day and 28-dayexplants produced a higher rate of callus in MS medium including 2,4-D auxinhormone. The regenerated plantlets were obtained from the shoot tip and node explantsof 28 days old seedlings after incubation in MS medium for 6 weeks. Directregeneration from the node and shoot tip was observed in this hormone freemedium. Micropropagation rates were 44.4 % and 12.5 % for node and shoot tipexplants, respectively. With this study, callus formation, regeneration andmicropropagation of the shoot tip and nodes was successfully carried for thefirst time.