بررسی تاثیر آنتی‌ اکسیدان‌های PVP در کاهش میزان فنوله و قهوه‌ای شدن ریزنمونه و محیط کشت گیاه آلوئه‌ورا

Aloe vera L is one of the most valuable economic and medicinal plants that belongs to the family Liliaceae.leaves are used to organs in middle part of it there is a thick clear gel.Aloe gel is a wide variety of physiological and biological properties and activities.One of the major pathways of polyphenols substances metabolism in plant against oxidative stress, these materials are known as secondary metabolites have pharmacological aspects.The secretion of these compounds in the tissue culture medium reduced the chances of success.Browning and black two major factors limiting a species of aloe is in tissue culture.In order to reduce browning of explant and medium, the explants to MS medium with three types of PVP (10, 25 and 40) at 4 concentrations (4, 6, 8 and 10 g per liter) were cultured.PVP40 the most suitable treatment at the concentration of 8 g per liter.