Ferda Eser

Dyeing of Wool and Cotton with Extract of the Nettle (Urtica dioica L.) Leaves

The aim of the study is to investigate the optimum dyeing conditions for wool and cotton fabrics with the nettle (Urtica dioica L.) extract. For this purpose, the leaves of the nettle were extracted with distilled water by using Soxhlet apparatus. Wool and cotton fabrics were pretreated with artificial animal urine system (AAUS) including NH3 (3%, v/v), CaC2O4 (3%, m/v), and urea (3%, m/v) before dyeing processes in order to improve the fastness properties of the dyed samples. The best dyeing conditions were evaluated in terms of color strength. The results reveal that the nettle leaves shall probably be an important raw material especially for dyeing of wool fibers.

Antiproliferative activities of several plant extracts from Turkey on rat brain tumor and human cervix carcinoma cell lines

Turkey has a wide range of flora and fauna due to its climatic diversity. Medicinal plants from Turkey have been used since ancient times for their primary health care. In this study, we examined antiproliferative activities of the extracts from Crataegus monogyna, Vitis vinifera, Glycrrhiza glabra, Alnus glutinosa L. gaertn, and Alcea rosea against rat brain tumor (C6) and human cervical cancer (HeLa) cell lines. The results were compared with the standard anticancer drugs 5-Flurouracil (5-FU) and Cisplatin. C. monogyna, V. vinifera and A. rosea exhibited better antiproliferative activity than 5-FU and cisplatin at 100-75 µg/mL concentrations, against C6 cell lines. On the other hand, C. monogyna and V. vinifera extracts showed considerable antiproliferative activity against HeLa cells compared with 5-FU and cisplatin at 100-75 µg/mL. It can be suggested that, C. monogyna, A. glutinosa L. gaertn, V. vinifera and A. rosea extracts could be developed as an anticancer drug. GRAPHICAL ABSTRACT

Effect of acid pretreatment on the dyeing performance of walnut ( Juglans regia ) leaves on wool fibers

In this study, dyeability of wool fabrics with walnut leaves extract have been investigated in presence of various acids including acetic acid, citric acid, maleic acid, oxalic acid, and formic acid. Each wool fabric was pretreated with 1 M of acid solution, separately. The pretreated fabrics were dyed with walnut leaves extract using various mordants by metamordanting method. Color strength values of the dyed fabrics were evaluated by measuring K/S values. Fastness properties (washing, rubbing, and light fastness) were also determined. The pretreated fiber sample surfaces were observed using a scanning electron microscope (SEM). The present study showed that citric acid pretreatment plays an important role for improving the dyeability of wool fabrics with walnut leaves extract.

Anti-inflammatory effect of D-pinitol isolated from the leaves of Colutea cilicica Boiss et Bal. on K562 cells

Abstract Aim: D-pinitol, a natural compound has shown various biological and pharmacological effects. Last studies are focused on the determination of its further pharmacological activities including mainly biological activity. Therefore, isolation of D-pinitol from the leaves of Colutea cilicica Boiss et Bal. and investigation of its apoptotic and anti-inflammatory activity on K562 cell lines were aimed in the concept of the study. Materials and methods: Isolation of D-pinitol was performed by column chromatography. Chemical structure of the compound was confirmed by spectroscopic methods including 1H NMR, 13C NMR, 2D NMR, HPLC-TOF/MS, and IR. Cell viability was evaluated by dose and time dependent in K562 cell lines. D-pinitol was isolated from C. cilicica leaves for the first time. Results: Stimulation of cells with D-pinitol (0–80 μM) was observed for 24, 48 and 72 h. It is determined that D-pinitol inhibited protein expression of Cox-2 in K562 cells. We observed that Poly (ADP-ribose) polymerase (PARP) protein expression did not change, but Cox-2 protein expression reduced with non-cytotoxic concentrations of D-pinitol. Conclusion: It is concluded that D-pinitol did not affect cell proliferation and apoptosis in K562 cells however reduced the inflammation, significantly. These results show that D-pinitol may be anti-inflammatory agent for the treatment of K562 cells.

Investigation of Dyeing Properties of Different Fabric Species with Alkanna Orientalis Root Extract

In this study, the dyeing properties of different fabric species were investigated using root extract of yellow sormunen (Alkanna orientalis). For this purpose, the cotton and wool fabrics were dyed using the root extract of yellow sormunen by pre-mordanting, together-mordanting and last-mordanting methods with copper sulfate (CuSO4), iron sulfate (FeSO4) and aluminum sulfate (AiK(SO4)2) at medium pH. The same procedure was applied to cotton and wool fabrics that allowed in Artifical Urinary System (AUS) [%3 NH3 + %3 urea + %3 CaC2O4 (g/v)] for 24 h. The color codes were determined with Pantone Color Quide, and K/S and L* a* b* values were detected with color measurement spectrophotometer, and also washing-, crocking-fastness levels were evaluated using gray scale. According to the evaluations, the fabrics dyed pre-treated with AUS have higher fastness values than the unpre-treated dyed fabrics with AUS.

Dyeing of Wool and Cotton Fabrics with Leaves of Apple (Malus Domestica) Tree

ABSTRACT In this study, apple leaves were used to dye wool and cotton fabrics. Effects of mordant type and dyeing technique on color yield and fastness properties were investigated. The selected dyed fibre sample surfaces were observed using a scanning electron microscope (SEM). Color strength (K/S) values of the dyed fabrics were between 0.53 and 20.56. Washing and rubbing fastness results of the dyed fabrics were moderate/high. The SEM images of the naturally dyed fabrics demonstrated a smooth surface profile. We have concluded that apple leaf is suitable for the natural dyeing of wool fabrics.

KIZILAĞAÇ YAPRAKLARININ TEKSTİL ENDÜSTRİSİNDE BOYARMADDE KAYNAĞI OLARAK DEĞERLENDİRİLMESİ

Bu calismada, ozellikle bitkisel atik maddelerin degerlendirilmesi, dogal boyamacilik icin surekli bir kaynak olusturulmasi ve ulke ekonomisine onemli olcude katki saglanmasi amaciyla kizilagac yapraklarinin tekstil sektorunde dogal boyarmadde kaynagi olarak kullanilabilirligi arastirilmistir. Bu baglamda, yun ve pamuklu kumaslar FeSO 4 ve AlK(SO 4 ) 2 mordanlari esliginde on, birlikte ve son mordanlama islemlerine tabi tutuldu. Her kumas turu icin 2 farkli pH degerinde calisildi. Boyanan materyallerin renk analizleri yapilarak yikama, surtme ve isik hasliklari bakimindan degerlendirildi. Yapilan analizler ve test sonuclarina gore pamuklu kumasin yun kumasa gore daha iyi boyandigi ve son mordanlama yonteminin daha iyi sonuc verdigi tespit edilmistir. Pamuklu kumaslarda, FeSO 4 mordani ile ozellikle bazik ortamda yapilan boyamalarda daha yuksek renk siddeti elde edilmistir.