Mazen Afif Silk production by fermentation of fruits of Withania somnifera , we noticed on the fourth day of the sticky layer surfacing is made up , and increase the intensity of this article until the sixth day , thick yellow layer formed in the lower part in contact with the fruits . Not affect where some acids, disintegrate weaved in sodium carbonate solution and turn into a sticky substance then turn into a solid . Affected by air , and is characterized by the smell of the Pisum sativum . Fungus yeast converts sap of plants to silk protein .  about 8 years ago

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