Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2006.428.433 Malus Varieties]]>BakhshayeshiM. A.KhayamiM. HeidariR. JameiR. 3200693The anthocyanin pigments was extracted from the four Malus varieties such as M. domestica cv. red starking,M. domestica cv. red delicious, M. domestica cv. jonathan and M. domestica cv. abbasi mashhad using the soaking in Ethanol (1% acidified).The extracted anthocyanin pigments then were exposed to number of environmental factors which could destabilize the anthocyanin molecules. These environmental factors were included three different pH (1, .5 and 4), four various temperatures (5, 0, 0 and 40°C) and presence or absence of light.The results showed that increasing in pH, temperature or exposure to light is able to destruction the anthocyanin pigments. Another factor affecting the tolerance of anthocyanin towards the environmental condition is the role of different varieties. Among the various Malus varieties anthocyanin pigment in M. domestica cv. red starking, showed the greatest resistance to destruction by environmental conditions, other varieties followed: M. domestica cv. red delicious M. domestica cv. jonathan and M. domestica cv. abbasi mashhad consecutively.]]>Little, A.C.,19974215701574Chiriboga, C. and F.J. Francis,19709223223Cooper-Driver, G.A.,200156229236Cordenunsi, B.R., J.R.O. Nascimento and F.M. Lajolo,200383167173Delpech, R.,200034206210Giusti, M.M. and R.E. Wrolstad,20002000Lee, H.S.,2002Citrus sinensis).]]>5012431246Leng, P., H. Itamura, H. Yamamura and X.M. Deng,2000834350Malien-Aubert, C., O. Dangles and M.J. Amiot,200149170176Mazza, G. and E. Minitiati,1993pp: 1-28pp: 1-28Navidra, P.S., R.S.A. Chandra and M.G. Nair,20025025192523Palamidis, N. and T. Markakis,197540104104Spayd, S.E., J.M. Tarara, D.L. Mee and J.C. Feguson,2002Vitis vinifera.]]>5333Timberlake, C.,198914113117Yamazaki, M. and K. Saito,2002Perilla frutescens as a model plant.]]>155923Bridle, P. and C.F. Timberlake,199758103109