Lemon is a small, evergreen tree that produces flowers and fruits throughout the year, so that a single specimen has blossoms, green fruits and ripe yellow fruits at the same time. The structure of the lemon is best seen in a cross-section. Inside is a juicy pulp divided into as many as 15 sections, usually without seeds.
The pericarp is composed of two layers, a white, spongy inner layer (albedo) and an outer cover or rind (flavedo), coloured yellow when ripe and containing numerous large cells filled with the essential oil of lemon which gives the peel its characteristic smell.
About one-third of the world population has become addicted to this beverage which is not surprising, for not only does it have a pleasant flavour and aroma but also a mildly stimulating effect, apart from its importance as a social and cultural custom.
They contain approximately 2% caffeine, which is gradually released as they are chewed; at first they have a bitter flavour which gradually becomes sweet. Also released during chewing is a red pigment that colours the lips. Dried and ground cola nuts may be used to make a hot beverage in the same way as coffee.
Lemon peel gives foods a refreshing aroma and is used in pastries, candies and compotes. The essential oil of lemon is obtained for industrial purposes by pressing (prime quality) or distillation (lower quality).
Cola is a tree resembling the horse chestnut. It is native to tropical central and west Africa, where it forms groves, and is raised in the West Indies, Brazil and tropical Asia. It is closely related to coffee, whose seeds likewise contain caffeine, and its flowers grow directly from the trunk or older branches (cauliflory) as in coffee.
The pericarp is composed of two layers, a white, spongy inner layer (albedo) and an outer cover or rind (flavedo), coloured yellow when ripe and containing numerous large cells filled with the essential oil of lemon which gives the peel its characteristic smell.
About one-third of the world population has become addicted to this beverage which is not surprising, for not only does it have a pleasant flavour and aroma but also a mildly stimulating effect, apart from its importance as a social and cultural custom.
They contain approximately 2% caffeine, which is gradually released as they are chewed; at first they have a bitter flavour which gradually becomes sweet. Also released during chewing is a red pigment that colours the lips. Dried and ground cola nuts may be used to make a hot beverage in the same way as coffee.
Lemon peel gives foods a refreshing aroma and is used in pastries, candies and compotes. The essential oil of lemon is obtained for industrial purposes by pressing (prime quality) or distillation (lower quality).
Cola is a tree resembling the horse chestnut. It is native to tropical central and west Africa, where it forms groves, and is raised in the West Indies, Brazil and tropical Asia. It is closely related to coffee, whose seeds likewise contain caffeine, and its flowers grow directly from the trunk or older branches (cauliflory) as in coffee.
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