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Date: 27-4-2019
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Date: 5-6-2020
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Date: 9-2-2018
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Hydrogen cyanide in plant material
A number of plants and their fruits, e.g. apricot and plum kernels, grape and apple seeds, are natural sources of HCN. The origin of the HCN is a cyanoglucoside, amygdalin (a sugar derivative) which is present in the fruit stones and seeds; hydrolysis of amygdalin releases HCN. Cassava is an important root crop grown in tropical regions as a source of starch, and, for example, it is used for the production of tapioca. Cassava plants may be either a sweet or bitter variety; bitter cassava contains larger quantities of cyanoglucosides which liberate HCN when the roots are crushed or chewed. In order to render the root crop safe as a foodstuff, bitter cassava must be subjected to careful treatment of shredding, pressure and heat. A beneficial side-effect is the natural defence that cassava has against, for example, insect pests.
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دراسة: عدم ترتيب الغرفة قد يدل على مشاكل نفسية
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علماء: تغير المناخ تسبب في ارتفاع الحرارة خلال موسم الحج
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عمره عام واحد ويعاني من ورم خبيث بوزن (3) كغم وعلى نفقة العتبة الحسينية ... مستشفى خديجة الكبرى (ع) ينجح باستئصال ورم سرطان الكلى لطفل من محافظة الأنبار
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