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Carob

life science Maturity 9-11

The carob is a big tree.

Carob tree.jpg
Carob tree.jpg
It grows in warm places. It makes sweet pods. People use them like chocolate. You can eat them in treats!
Illustration Ceratonia siliqua0.jpg
Illustration Ceratonia siliqua0.jpg
Do you like sweet food?

36 words

The carob is a big tree.

Carob tree.jpg
Carob tree.jpg
It grows in warm lands. It has thick bark and strong branches.

This tree makes sweet pods. The pods take a whole year to grow.

Illustration Ceratonia siliqua0.jpg
Illustration Ceratonia siliqua0.jpg
They grow on the branches and even the trunk.

People use the pods for food. They can make a powder. It tastes like chocolate!

The seeds are also useful. They help make food thick. This is used in many treats.

Animals like to eat the sweet pods too. This helps new trees grow. The carob is a very busy tree!

96 words

The carob is an evergreen tree or shrub.

Carob tree.jpg
Carob tree.jpg
It grows in the Mediterranean and the Middle East. These trees like warm, dry places. They can live through long times without rain. This is because they are xerophytes, which means they can handle drought.
Carob tree leaf.JPG
Carob tree leaf.JPG
The leaves are long and grow in a pattern called pinnate. This means they have many small parts on one stem.

Carob trees make sweet fruit in long pods. It takes a full year for these pods to ripen. Most trees are dioecious. This means some trees are male and some are female. Only the female trees make the fruit. When the pods fall, animals like pigs eat them. This helps spread the seeds to new places.

People use carob in many ways. They grind the pulp into a powder or chips. People often use it as a substitute for chocolate. The seeds are also useful. They make carob gum. This is a thickening agent used in food.

Illustration Ceratonia siliqua0.jpg
Illustration Ceratonia siliqua0.jpg
Spain is the largest producer of carob in the world.

179 words

The carob tree is a special kind of evergreen tree or shrub.

Carob tree.jpg
Carob tree.jpg
It belongs to the legume family, which is the same family as beans. These trees are native to the Middle East and the Mediterranean region. They are very strong and can survive in hot, dry places. Scientists call them xerophytes because they are built to handle long droughts.
Carob tree leaf.JPG
Carob tree leaf.JPG
The trees have thick trunks with rough brown bark. Their leaves are long and grow in a pattern called pinnate. This means many small leaflets grow along a single stem.

Growing fruit on a carob tree is a slow process. It takes a full year for the seed pods to develop and ripen. Most carob trees are dioecious, which means they are either male or female. Only the female trees produce the sweet fruit.

Illustration Ceratonia siliqua0.jpg
Illustration Ceratonia siliqua0.jpg
When the pods are ripe, they fall to the ground. Animals like swine, or pigs, eat these sweet pods. This helps the tree spread its seeds to new places through the animals. The seeds themselves are very hard and stay inside the pods.

People have used the carob tree for a very long time. The name "carob" comes from the Arabic word kharrūb. In some places, people call it "St. John's bread."

Arcosu07.jpg
Arcosu07.jpg
The seeds are so important that they helped name the carat. A carat is a unit used to measure the weight of gemstones. In the past, carob pods were even used as food during times when food was scarce. This shows how much people have relied on this tree for survival.

There are many different ways to use the carob harvest. The fruit pods have two main parts: the pulp and the seeds. The pulp makes up about 90% of the weight. People grind this pulp into a powder or small chips. Because of its color and taste, it is often used as a substitute for chocolate.

Garroves.JPG
Garroves.JPG
The seeds make up the other 10% of the weight. These seeds are used to make carob gum. This is a thickening agent used to change how food feels in your mouth.

Today, many countries grow carob for food and gardens. Spain is the largest producer of carob in the world. Italy and Morocco are also very important producers.

A bottle of Maltese carob liqueur with the north coast of Gozo Island in the background (Malta, April 2009).jpg
A bottle of Maltese carob liqueur with the north coast of Gozo Island in the background (Malta, April 2009).jpg
In Malta, people even make a traditional sweet called karamelli tal-harrub. You might find carob ingredients in your favorite cookies or cakes. It is a wonderful example of how a single tree can help many different people.

438 words

The carob tree, known scientifically as Ceratonia siliqua, is a remarkable evergreen shrub or tree.

Carob tree.jpg
Carob tree.jpg
It belongs to the Fabaceae family, which is the legume family. This tree is native to the Mediterranean region and the Middle East. It is highly valued for its edible fruit and its use in landscaping. The carob is a xerophyte, meaning it is a plant specially adapted to survive in dry environments.
Carob tree leaf.JPG
Carob tree leaf.JPG
This adaptation allows it to thrive in warm, subtropical areas with very little rainfall.

The physical structure of the carob tree is quite distinct. It features a thick trunk covered in rough brown bark and supports a broad, semispherical crown. Its leaves are pinnate, meaning they consist of several leaflets arranged along a stem. The tree is often dioecious, which means individual trees are either male or female. Because of this, only the female trees produce the fruit we eat. Some trees are hermaphroditic, meaning they possess both male and female parts.

Illustration Ceratonia siliqua0.jpg
Illustration Ceratonia siliqua0.jpg

Producing fruit is a long and complex biological process for the carob. The flowers appear in autumn, arranged in small, numerous clusters called racemes. These flowers are pollinated by both the wind and various insects. Interestingly, the male flowers produce a distinct odor caused by amines. Once pollinated, the fruit begins to grow as a legume, often called a pod. These pods can be straight, curved, or compressed in shape. It takes a full year for a pod to develop and reach maturity.

Arcosu07.jpg
Arcosu07.jpg

Once the pods ripen and fall, they play a role in the tree's ecology. Various mammals, such as swine, eat the sweet, ripe pods. The seeds inside are very hard and pass through the animal's digestive system. This process helps disperse the seeds in the animal's excrement to new locations. The seeds themselves contain a colorless substance called leucodelphinidin. This is a precursor to other chemical compounds used in plant biology.

Humans have harvested carob for centuries, using it in many different ways. The fruit pod consists of two main parts: the pulp and the seeds. The pulp makes up about 90% of the total weight of the pod. It is often ground into a powder or small chips to replace chocolate in recipes. The seeds, which make up the remaining 10%, are used to create locust bean gum. This is a common thickening agent used throughout the food processing industry.

Garroves.JPG
Garroves.JPG

The history of the carob is reflected in its many names and measurements. The word "carob" comes from Middle French, which borrowed from Arabic and Persian. In English, it is sometimes called "St. John's bread." The name of the seed even influenced how we measure precious items. The carat, a unit used for gemstones and gold purity, comes from the Greek name for the carob seed. This connection shows how deeply the carob has been integrated into human culture and commerce.

A bottle of Maltese carob liqueur with the north coast of Gozo Island in the background (Malta, April 2009).jpg
A bottle of Maltese carob liqueur with the north coast of Gozo Island in the background (Malta, April 2009).jpg

Modern carob production is a significant global industry. In 2022, world production of locust beans was estimated at 56,423 tonnes. Spain is currently the largest producer, followed by Italy and Morocco. Most of the reported global total comes from Turkey and Morocco. Growing these trees requires patience, as they enter the production phase slowly. In marginal soils, it can take up to 8 years to bear fruit. Full, stable yields usually do not occur until the tree is 20 to 25 years old.

Cultivating carob involves specific management to ensure a healthy harvest. Farmers often use grafting or air-layering to help the trees reproduce. Harvesting is a delicate, labor-intensive task often done by knocking pods down with long sticks. After the harvest, the pods must be dried until they have only 8% moisture. This prevents the fruit from rotting during storage. While the tree is hardy, farmers must watch for pests like the carob moth. This moth can cause significant damage to crops both before and after the harvest.

677 words
🖼️ Images & Media (6)
File:Carob tree leaf.JPG
Carob tree leaf.JPG
File:Illustration Ceratonia siliqua0.jpg
Illustration Ceratonia siliqua0.jpg
File:Arcosu07.jpg
Arcosu07.jpg
File:Garroves.JPG
Garroves.JPG
File:A bottle of Maltese carob liqueur with the north coast of Gozo Island in the background (Malta, April 2009).jpg
A bottle of Maltese carob liqueur with...
File:Carob tree.jpg
Carob tree.jpg
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