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Guanidine exists protonated, as guanidinium, in solution at physiological pH. Guanidinium chloride (also known as guanidine hydrochloride) has chaotropic properties and is used to denature proteins. Guanidinium chloride is known to denature proteins with a linear relationship between concentration and free energy of unfolding.
Once the water's boiling, use a large slotted spoon to gently lower the eggs into the water. Boil for 11 minutes (Note: For soft-boiled eggs, cook for 6 minutes.)
Facial treatments using the droppings, or guano, from Japanese nightingales have been used in Japan and elsewhere, because the guanine in the droppings makes the skin look paler. [10] Guanine crystals are rhombic platelets composed of multiple transparent layers, but they have a high index of refraction that partially reflects and transmits ...
Tetramethylguanidine is mainly used as a strong, non-nucleophilic base for alkylations, often as a substitute for the more expensive DBU and DBN. [3] Since it is highly water-soluble, it is easily removed from mixtures in organic solvents. It is also used as a base-catalyst in the production of polyurethane. [4]
To make eggs that are easier to peel, our Test Kitchen experts recommend not boiling your eggs at all.
The skins should pop off or peel off more easily. This method will soften your garlic slightly, so it's not the best method for recipes that use raw garlic. Alternatively, some cooks report ...
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Consider the age of the eggs. Some people swear by the trick that older eggs make for easily peeled hard-boiled eggs. The recommended time to store your eggs before boiling is between one and two ...