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Ytm900 6 Ball Mill

3 methods 31 preparation of extract take 1 g of defatted by using petroleum ether and ground sample ground preferably using a ball mill and suspend in 10 ml of distilled water see note 1 adjust its ph to 76 using 1m sodium hydroxide solution after shaking for 1 h on a magnetic stirrer centrifuge 3000 g 10 min the suspension 32.

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