Fresh Sweet Almonds possess demulcent and nutrient properties, but as the outer brown skin sometimes causes irritation of the alimentary canal, they are blanched by removal of this skin when used for food. Though pleasant to the taste, their nutritive value is diminished unless well masticated, as they are difficult of digestion, and may in some cases induce nettlerash and feverishness. They have a special dietetic value, for besides containing about 20 per cent of proteids, they contain practically no starch, and are therefore often made into flour for cakes and biscuits for patients suffering from diabetes.
Sweet Almonds are used medicinally, the official preparations of the British Pharmacopoeia being Mistura Amygdalae, Pulvis Amygdalae Compositus and Almond Oil.
On expression they yield nearly half their weight in a bland fixed oil, which is employed medicinally for allaying acrid juices, softening and relaxing solids, and in bronchial diseases, in tickling coughs, hoarseness, costiveness, nephritic pains, etc.
When Almonds are pounded in water, the oil unites with the fluid, forming a milky juice - Almond Milk - a cooling, pleasant drink, which is prescribed as a diluent in acute diseases, and as a substitute for animal milk: an ounce of Almonds is sufficient for a quart of water, to which gum arabic is in most cases a useful addition. The pure oil mixed with a thick mucilage of gum arabic, forms a more permanent emulsion; one part of gum with an equal quantity of water being enough for four parts of oil. Almond emulsions possess in a certain degree the emollient qualities of the oil, and have this advantage over the pure oil, that they may be given in acute or inflammatory disorders without danger of the ill effects which the oil might sometimes produce by turning rancid. Sweet Almonds alone are employed in making emulsions, as the Bitter Almond imparts its peculiar taste when treated in this way.
Blanched and beaten into an emulsion with barley-water, Sweet Almonds are of great use in the stone, gravel, strangury and other disorders of the kidneys, bladder and biliary ducts.
By their oily character, Sweet Almonds sometimes give immediate relief in heartburn. For this, it is recommended to peel and eat six or eight Almonds.
Almonds are also useful in medicine for uniting substances with water. Castor oil is rendered palatable when rubbed up with pounded Almonds and some aromatic distilled water.
The fixed Oil of Almonds is extracted from both Bitter and Sweet Almonds. If intended for external use, it must, however, be prepared only from Sweet Almonds.
The seeds are ground in a mill after removing the reddish-brown powder adhering to them and then subjected to hydraulic pressure, the expressed oil being afterwards filtered and bleached, preferably by exposure to light.
from:Botanical.com
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