Isolation of Two New Ionone Glucosides from Quince ( Cydonia Oblonga Mill.) Leaves

2002 ◽  
Vol 16 (2) ◽  
pp. 119-122 ◽  
Author(s):  
Andrea Lutz-Röder ◽  
Marc Schneider ◽  
Peter Winterhalter
Keyword(s):  
Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
M Noubarani ◽  
SA Khayat ◽  
R Mafinezhad ◽  
S Mohebbi ◽  
K Mohammad ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Gulnur Arabaci ◽  
Ayse Usluoglu

Water pollution due to release of industrial wastewater has already become a serious problem in almost every industry using dyes to color its products. In this work, polyphenol oxidase enzyme from quince (Cydonia Oblonga) leaves immobilized on calcium alginate beads was used for the successful and effective decolorization of textile industrial effluent. Polyphenol oxidase (PPO) enzyme was extracted from quince (Cydonia Oblonga) leaves and immobilized on calcium alginate beads. The kinetic properties of free and immobilized PPO were determined. Quince leaf PPO enzyme stability was increased after immobilization. The immobilized and free enzymes were employed for the decolorization of textile dyes. The dye solutions were prepared in the concentration of 100 mg/L in distilled water and incubated with free and immobilized quince (Cydonia Oblonga) leaf PPO for one hour. The percent decolorization was calculated by taking untreated dye solution. Immobilized PPO was significantly more effective in decolorizing the dyes as compared to free enzyme. Our results showed that the immobilized quince leaf PPO enzyme could be efficiently used for the removal of synthetic dyes from industrial effluents.


2014 ◽  
Vol 13 (1) ◽  
pp. 445-449 ◽  
Author(s):  
E. Orhan ◽  
G. Nardemir ◽  
G. Agar ◽  
S. Ercisli

2001 ◽  
Vol 23 (3) ◽  
pp. 742-744 ◽  
Author(s):  
LEO RUFATO ◽  
GERALDINE DE ANDRADE MEYER ◽  
VALMOR JOÃO BIANCHI ◽  
JOSÉ CARLOS FACHINELLO
Keyword(s):  

O marmeleiro pertence à família Rosaceae. Atualmente, tem sido utilizado como porta-enxerto de pereira devido sua característica ananizante. O floroglucinol é um composto fenólico, potencializador da auxina. O presente trabalho foi conduzido em telado com nebulização intermitente e teve como objetivo avaliar a capacidade de enraizamento de estacas lenhosas de marmeleiro, tratadas com floroglucinol (zero, 1500 e 3000 mg.L-1), para indução de raízes. As cultivares testadas foram Pineapple, Meliform, Alongado, Radaelli, Portugal, Inta e MC. As estacas foram preparadas com 12 cm e ½ folha na parte superior, acondicionadas em caixas plásticas contendo vermiculita média. O delineamento utilizado foi o de blocos ao acaso, em arranjo fatorial (3 x 7), com 3 repetições e 5 estacas por parcela. As variáveis analisadas foram percentagem de enraizamento, número de raízes e percentagem de estacas brotadas. Observou-se que, independentemente da concentração testada, o floroglucinol não promoveu a indução do enraizamento de estacas lenhosas. A cultivar MC apresentou melhor percentagem de enraizamento, número de raízes e percentagem de estacas brotadas.


2016 ◽  
Vol 44 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Hasan PINAR ◽  
Suat KAYMAK ◽  
Serif OZONGUN ◽  
Aydın UZUN ◽  
Mustafa UNLU ◽  
...  

Quince (Cydonia oblonga Mill.) belongs to the Rosaceae family is native to south-eastern Europa and Asia Minor. It is generally used for table consumption and processed into jam, jelly and marmalade. It is also used as dwarfing rootstock for pear cultivars. In the present study, fruit characteristics and genetic diversity of 17 quince cultivars from Turkey were investigated. For fruit characteristics, 'Bardacik' had the highest fruit weight. The highest SSC/Acidity ratio were obtained from 'Osmancik'. There was high level of variation in fruit characteristics among cultivars. In molecular analysis, totally 133 bands were obtained from 23 sequence-related amplified polymorphism (SRAP) primer combinations and 67 of them were polymorphic. Genetic similarity of 17 cultivars was between 0.78 and 1.00. Two cultivars ('Sekergevrek' and '32S04') were found to be more distinct from the other cultivars genetically. This study showed that there was low level of genetic variation most of quince cultivars grown in Turkey. SRAP markers firstly used in quince with this study indicating that it can be used for characterization and diversity analysis of quince.


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