Figura 1: Canela de Sri Lanka. Crédito de la foto: Acción Práctica / Neil Noble

La canela es una valiosa especia que se obtiene de la corteza de un árbol de hoja perenne (Cinnamomum zeylanicum) que pertenece a la familia Laurel. La canela es originaria de Sri Lanka, Myanmar (Birmania) y la franja costera del sur de la India. La cosecha ahora crece en América del Sur y las Indias Occidentales, las Seychelles y Reunión. La canela de mejor calidad se produce en Sri Lanka.

Cassia, que es la corteza del árbol de hoja perenne Cinnamomum cassia , es una especia similar a la canela pero de calidad inferior. Es originario de Myanmar (Birmania). La mayor parte de la casia del mundo proviene de China, Indochina, Indonesia, las Indias Orientales y Occidentales y América Central. La corteza de Cassia es más gruesa y menos fragante que la canela y, a veces, se usa como sustituto.

La canela obtiene su olor y aroma característicos de un aceite volátil que se encuentra en la corteza. El aceite se puede destilar de cortezas, hojas y raíces fuera de grado.

La canela debe secarse antes de almacenarse y venderse para el mercado. Este resumen describe los pasos importantes que deben tomarse antes y después de la cosecha para garantizar que la canela seca sea de la mejor calidad para el mercado.

producción de canela

The cinnamon tree is a bushy evergreen tree that is cultivated as low bushes (about 2-3m tall) to make harvesting easier. The bushes grow well in shaded places with an average rainfall and without extremes of temperature. The optimum temperature for production is between 27 and 30°C. The soil should not be waterlogged as this produces a bitter-tasting bark. Eight or ten side branches grow on the bush and these are harvested after about three years to obtain thecinnamon bark.

Cosecha

Cinnamon bark is harvested twice a year immediately after each of the rainy seasons when the humidity makes the bark peel more easily. The trees are first harvested when they are three years old, one year after pruning. The side stems that are about three years old are removed and the bark is stripped off. Cinnamon bark is only obtained from stems that are between 1.2 and 5cm in diameter.

Procesando

Processing accounts for about 60% of the cost of production of cinnamon. This is because the peeling of bark from the stems is labour intensive and is usually done by hand, by skilled peelers. The quality of cinnamon depends on how well the bark is removed from the stems. The larger pieces or quills can be sold for more than the smaller broken pieces.The Agricultural Engineering University of Ruhuna in Sri Lanka has developed a small mechanised machine for removing the bark from cinnamon stems. Drying is also an important stage of the processing of cinnamon. It contributes to the quality of the final product.

Etapas de procesamiento

  • Remove the tender stems (with diameters less than 1.2cm) and use these for mulching.
  • Stems with diameters of less than 5cm are not used to prepare cinnamon bark. Remove these and use for oil distillation.
  • Remove the soft outer bark using a fine rounded rasp knife.
  • Rub the stripped stem with a brass rod to loosen the inner bark. It is important to use a brass rod so that the bark does not become discoloured.
  • Make cuts around the stem at 30cm intervals using a small pointed knife. The knife blade should be stainless steel or brass to prevent staining the bark.
  • Make long cuts along the length of the stem, so that the bark can be carefully eased off the stem. Use the pointed knife and the rubbing rod to help ease off the bark.
  • The pieces of removed bark are known as quills. Place these curled quills inside one another to make long compound quills (up to 1m long). Use the best whole quills on the outside and fill in the centre with broken pieces of bark.

El secado

The compound quills are placed on coir rope racks and dried in the shade to prevent warping. After four or five days of drying, the quills are rolled on a board to tighten the filling and then placed in subdued sunlight for further drying.

In humid climates or during the rainy season it will be necessary to use a mechanical dryer to complete the drying process. There are a range of dryers available to suit different situations (electrical, gas fired, biomass fuelled). See the Practical Action Technical Brief on drying for further information.

calificación

The quality of cinnamon is judged by the thickness of the bark, the appearance (broken or entire quills) and the aroma and flavour. The Sri Lankan grading system divides the cinnamon quills into four main groups according to diameter:

ClassificationDescriptionMeasurements
1. QuillsAlbaLess than 6mm diameter
ContinentalLess than 16mm diameter
MexicanLess than 19mm diameter
HamburgLess than 32mm diameter
2. QuillingsPieces of bark less than 106mm long
3. FeatheringsInner bark of twigs and twisted shoots
4. ChipsTrimmings of quills, outer and inner bark that cant be separated
5. Powder
6. Leaf oil
7. Bark oilCinnamaldehyde 30-70%

Molienda

Grinding can be a method of adding value to a product. However, it is not advisable to grind spices. After grinding, spices are more vulnerable to spoilage. The flavour and aroma compounds are not stable and will quickly disappear from ground products. The storage life of ground spices is much less than for the whole spices. It is very difficult for the consumer to judge the quality of a ground spice. It is also very easy for unscrupulous processors to contaminate the ground spice by adding other material. Therefore most consumers, from wholesalers to individual customers, prefer to buy whole spices.

Cinnamon is sometimes ground to a powder prior to sale. The ground powder should be packaged in moisture proof packaging (polypropylene bags) to retain the flavour.

embalaje

Cinnamon quills are cut into pieces up to 10cm in length and packed into moisture-proof polypropylene bags for sale. The bags should be sealed to prevent moisture entering. Sealing machines can be used to seal the bags. Attractive labels should be applied to the products. The label needs to contain all relevant product and legal information – the name of the product, brand name (if appropriate), details of the manufacturer (name and address), date of manufacture, expiry date, weight of the contents, added ingredients (if relevant) plus any other information that the country of origin and of import may require (a barcode, producer code and packer code are all extra information that is required in some countries to help trace the product back to its origin). See the Practical Action Technical Brief on labelling for further information on labelling requirements.

Almacenamiento

Dried cinnamon quills must be stored in moisture-proof containers away from direct sunlight. The stored cinnamon quills should be inspected regularly for signs of spoilage or moisture. If they have absorbed moisture, they should be re-dried to a moisture content of 10%.

The storage room should be clean, dry, cool and free from pests. Mosquito netting should be fitted on the windows to prevent pests and insects from entering the room. Strong smelling foods, detergents and paints should not be stored in the same room as they will spoil the delicate aroma and flavour of the cinnamon.

Proveedores de equipos

This is a selective list of suppliers of equipment and does not imply endorsement by Practical Action.

This website includes lists of companies in India who supply food processing equipment. http://www.niir.org/directory/tag/z,,1b_0_32/fruit+processing/index.html

Secadoras

Acufil Machines
India (See above)

Gardners Corporation
158 Golf Links
New Delhi 110003
India
Tel: +91 11 3344287/3363640
Fax: +91 11 3717179

Gurdeep Packaging Machines
Harichand Mill compound
LBS Marg, Vikhroli
Mumbai 400 079
India
Tel: +91 22 2578 3521/577 5846/579 5982
Fax: +91 22 2577 2846

MMM Buxabhoy & Co
140 Sarang Street
1st Floor, Near Crawford Market
Mumbai
India
Tel: +91 22 2344 2902
Fax: +91 22 2345 2532
yusufs@vsnl.com; mmmb@vsnl.com;
yusuf@mmmb.in

Narangs Corporation
India
P-25 Connaught Place
New Delhi 110 001
India
Tel: +91 11 2336 3547
Fax: +91 11 2374 6705

Orbit Equipments Pvt Ltd
175 - B, Plassy Lane
Bowenpally
Secunderabad - 500011, Andhra Pradesh
India
Tel: +91 40 32504222
Fax: +91 40 27742638
http://orbitequipments.com/

Pharmaco Machines
Unit No. 4, S.No.25 A
Opp Savali Dhaba, Nr.Indo-Max
Nanded Phata, Off Sinhagad Rd.
Pune – 411041
India
Tel: +91 20 65706009
Fax: +91 20 24393377

Rank and Company
India (see above)

Banyong Engineering
94 Moo 4 Sukhaphibaon No 2 Rd
Industrial Estate Bangchan
Bankapi
Thailand
Tel: +66 2 5179215-9

Technology and Equipment Development Centre (LIDUTA)
360 Bis Ben Van Don St
District 4
Ho Chi Minh City
Vietnam
Tel: +84 8 940 0906
Fax: +84 8 940 0906

John Kojo Arthur
University of Science and Technology
Kumasi
Ghana

Alvan Blanch
UK (see above)

Contactos

The following contacts should be able to provide further information:

Agricultural Engineering Department
University of Ruhuna
Galle
Sri Lanka
Tel: +94 41 2222681/82
Fax: +94 41 2222683
postmaster@cc.ruh.ac.lk
https://www.ruh.ac.lk/

Indian Institute of Spices Research (IISR)
Marikunnu PO, Calicut
Kerala
India 673012
Tel: +91 495 2731346
+91 495 2730294
parthasarathy@iisr.org; rdinesh@iisr.org
http://www.iisr.org/package/index.php?spice=Cinnamon&body=Overview

Indian Institute of Technology (IIT) Bombay
Powai
Mumbai 400076
India
Tel: +91 22 2572 2545
Fax: +91 22 2572 3480
http://web.archive.org/web/20170425034047/http://www.ircc.iitb.ac.in/webnew/

Otras lecturas

Drying - Practical Action Technical Brief
Spice processing - Practical Action Technical Brief
Labeling food products - Practical Action Technical Brief

Practical Action

The Schumacher Centre for Technology and DevelopmentBourton-on-DunsmoreRugby, Warwickshire, CV23 9QZUnited KingdomTel: +44 (0)1926 634400Fax: +44 (0)1926 634401E-mail: inforserv@practicalaction.org.ukWebsite: http://www.practicalaction.org/This document was produced by Dr. S Azam Ali for Practical Action in March2007.

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