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February
2005

SPIRULINA AT FAZENDA TAMANDUA


Fascinated by the spirulina's history and its huge potential for human and animal health, for a long time I wanted to test its production at Fazenda Tamandua.

Introduced to Spirulina through Mr. Denis von der Weid restless work, from NGO Antenna Technologies at Geneve, Switzerland, we learned with him the basics info about this
cyanobacteria culture.

We always want to offer to our trainees works that might add value as much for the trainee as for the Farm itself, and when we got Rebecca Schlottau request, I suggested her to develop this task.

The bet was correct: thanks to Rebecca's rational and analitical skills, we succeeded, in a very short period of time, to elaborate a production system suitable to our climate, and at the same time, to educate two young Farm´s colaborators to continue properly this production.

The first tests were with calf just after the separating moment from their mothers, always working with a cientific protocol, elaborated by Prof. Fernando Borja dos Santos, from Veterinarian School, UFCG, with encouraging results that will be published later. The microbiologic analisys took a long time but proved that the spirulina made in Fazenda Tamandua has high quality.

This is a successful experience for a remarkable
food that needs to be available to human nutrition, after fullfiling the actual legal demands.

Next, please read Rebecca'a statement as well as her interesting text explaining spirulina's concept and the richness of its uses and properties.

PL


Before I arrived at Fazenda Tamanduá, I hadn’t much idea of what was waiting for me; just that I was very keen to get to know this place, which seemed so interesting to me! And now I know that, in fact, it is not only interesting but also astoundingly beautiful, and full of fantastic people, full of a dynamic spirit, and at the same time full of the peace that makes it an excellent place to be or live in.

   

While I discovered the farm, I also discovered spirulina - a micro-alga that has existed for millions of years and that grows naturally in salt lakes in Africa, but can also be cultivated by men – the Aztecs, for example, had already done this. This alga has extremely high contents of protein (up to 75%), vitamins and minerals, and that is why it is a very beneficial food supplement for human beings. It can work as a cure for people with serious illnesses caused by poor food intake, and is used as such for undernourished children in Africa and Asia; or simply to balance everyday food and help preventing various illnesses, strengthening the body, the immunological system and health as a whole.

For this semi-arid region, the sertão of the State of Paraíba, spirulina may be a solution to a great many problems!

 
 

It is easily cultivated with a lot of sunshine, little water and high temperatures, adapting to and thus taking advantage of the climatic conditions of the region; and it offers, in just one item, everything that may be missing in food that hardly varies, like the traditional food of this region, especially that of the very poor. Spirulina is beginning to be known and sought after throughout the world, and this growing market presents attractive options for the development of the sertão region.  

I learnt how to understand and cultivate this alga from Pierre Marnier, a French expert, who spent a month here, installing the first tank. After that, it was I who had the fantastic chance of learning what it is to take on the responsibility for a project; of learning, day by day, more about the fascinating subject of spirulina; and of seeing that the production was a success, working with the veterinarian Fernando Borja. Soon, I was assisted in taking care of the tanks, first by George, and after a while, by Francieldo, two young men on the farm, who learnt very quickly and now take care of the production with all the responsibility and competence that one could hope for. 

We now have four tanks of spirulina on the farm, which are producing very well. For the time being, it is only being used for the cattle; but when the analysis that is being carried out is ready, it will also be able to be used for human consumption, and so help to improve the food and health of all those who live on the farm! I would like to thank those same people for their welcome and friendship, which made my time on the farm a marvelous and unforgettable experience.  


The Concept: What is Spirulina?

 

The wise men call it “Cyanobacteria Arthrospira platensis” and say that it is a blue alga, but we see it green and through the microscope it looks like a “spring”; we call it SPIRULINA.

Less than 0.3 mm long, it is almost invisible to the naked eye, but it colors the water in which it lives green. It lives by photosynthesis, just like plants, but it is different from them, because it has, in addition to chlorophyll, the pigments carotenoid and phycocyanin, thus using almost the whole of the solar spectrum. In order to develop, it needs water, light, heat and the essential elements for plant life: carbon, nitrate and minerals, such as phosphorus, magnesium, potassium and iron. Its reproduction is asexual and takes place by means of division of its filaments. 

                      Microscopic view of a spirulina

 

Spirulina is beneficial for human and animal nutrition, because it contains huge quantities of iron, vitamins - especially provitamin A and group B vitamins - minerals and proteins; the proportion of the latter can be as high as 70%. In addition, because they do not have a cell wall, all its elements are completely bio-available to the body. 

 

African women filter
spirulina from lakes

 African woman
dries spirulina. 

The spirulina’s nutritional qualities have been known for thousands of years; the Aztecs already collected spirulina from alkaline lakes on the Mexican plateau.

In Africa, it is present in temporary lakes and lagoons which are salt and alkaline.

In Chad, a country in Central Africa, women have always collected spirulina by filtering the water of the lakes. The mass of this microscopic alga is then concentrated into a deep green purée, which is dried in the sun, taking the form of biscuits, which keep very well. The spirulina is grated and added to everyday food, to which it adds an important nutritious value.

 

 

Spirulina is much sought after and is sold in markets under the name of “DIHÉ”; and it feeds an intense caravan traffic, because different peoples know that it is an essential supplement to their food.

In the West, there has only recently been research into spirulina. Nowadays, spirulina is industrially produced in several countries, such as China, Thailand, India, and especially in the USA, where it is much sought after as a food supplement and therefore enjoys a high price. 

   
 

Spirulina´s Nutritional Properties

 

Proteins: 65 % by weight (norm: >50)

Glycerides:15 % by weight

Minerals: 7 % by weight (total ash: <10)

Lipids: 6 % by weight

Fibers: 2 % by weight

Water: 5 % by weight (norm: <10)
 

 Energy content = 5000 calories or 20.9 kJ per gram (dried).

 

VITAMINS

Beta-carotene = 1400 mg/kg = 2330 International Units (I.U.)
E (Tocopherol) = 100 mg/kg
B1 (Thiamine) = 35 mg/kg
B2 (Riboflavin) = 40 mg/kg
B3 or PP (Niacin) = 140 mg/kg
B5 (Pantothenic acid) = 1 mg/kg
B8 or H (Biotin) = 0.05 mg/kg
B12 (Cobalamine) = 3.2 mg/kg (this vitamin B12 might not be totally assimilated by the body)
Inositol = 640 mg/kg
K (Phylloquinone) = 20 mg/kg






 

AMINO ACIDS

Alanine = 47 g/kg
Arginine = 43 g/kg
Aspartic acid = 61 g/kg
Cystine = 6 g/kg
Glutamic acid = 91 g/kg
Glycine = 32 g/kg
Histidine = 10 g/kg
Isoleucine = 35 g/kg
Leucine = 54 g/kg
Lysine = 29 g/kg
Methionine = 14 g/kg
Phenylalanine = 28 g/kg
Proline = 27 g/kg
Serine =32 g/kg
Threonine = 32 g/kg
Tryptophane 9 g/kg

Tyrosine= 30 g/kg
Valine= 40 g/kg

 

MINERALS

Chrome = 3 mg/kg
Calcium = 10000 mg/kg
Copper = 12 mg/kg
Iron = 1800 mg/kg
Magnesium = 4000 mg/kg
Manganese = 50 mg/kg
Phosphorus = 8000 mg/kg
Potassium = 14000 mg/kg
Sodium = 9000 mg/kg
Zinc = 30 mg/kg

PIGMENTS

Phycocyanin = 150 g/kg
Chlorophyll = 11 g/kg
Carotenoids= 3.7 g/kg
(including beta-carotene) = 1.4 g/kg)

ESSENTIAL FATTY ACIDS

Linoleic acid  = 8 g/kg
Gamma-linoleic acid (GLA) = 10 g/kg

ENZYMES
Superoxide-dismutase = 1.5 million units / kg

 

Utilization

 

According to United Nations Agencies, 250 million children at present are victims of malnutrition. A WHO study indicates that 74% of child deaths under the age of five result from malnutrition, which, if not fatal, may retard mental and physical development; and even in regions where there is no hunger, a situation of malnutrition may exist, because the people in question do not eat diversified food. In most cases of malnutrition, what people most lack is vitamin A and iron. It is precisely these elements that are abundant in spirulina, which is why it is already being used in Africa and in other countries as a solution to this problem. With only 1 to 4 grams a day, in less than one month the problems disappear in most cases.

Spirulina is not only used in cases of malnutrition; its composition makes it a beneficial food supplement for everyone. It balances food intake, improving - due to its vitamins - the state of the complexion and the eyes, benefiting body development, the immunological system and vitality in general. Its pigments have an anti-oxidant action that helps to protect the body from early ageing, and also from cancer. The iron contained in spirulina fights anemia and the other minerals strengthen the bones. Studies are still being carried out to prove spirulina’s efficacy against diabetes and several types of cancer, cardio-vascular illnesses, cholesterol problems, the strengthening of the immunological system against AIDS, etc.

Another interesting research effort involving spirulina is that carried out by NASA, in an attempt to cultivate it inside spacecraft, so as to feed the astronauts and, at the same time, transform carbon dioxide into oxygen and purify water. 

 

Cultivation

 

The conditions required by spirulina in order to develop are found in nature, but they can be created artificially. A medium resembling salt lakes can be made with chemical or natural products. It is necessary to have movement in the water. This is done in nature by pink flamingos of the “minor” species, which feed in alkaline lakes; a flock of 100,000 birds eats 30 tons per day, and flocks of over one million birds have been counted. In the lakes of the Rift Valley, the amount of algae is variable and they can disappear almost overnight. The essential elements for the natural development of spirulina are available from the excrement dropped by the flamingos in those lakes.

 
 

In production tanks, these elements (either chemical or natural) have to be added periodically. The production of spirulina is more easily achieved in hot regions, with a high incidence of sunshine. It develops in production tanks, which may vary in size, and from which it is collected by using special filters. Reproduction is very rapid, so that an average daily production of 5 grams per sq.m. can be achieved.

 

Standard production tank (10 sq.m.)
at Fazenda Tamanduá - Sta.Terezinha/PB

Front view of three out of the four tanks
at Fazenda Tamanduá.

 

Bibliography:

  1. Braunwald E, Fauci A, Kasper D & cols. Harrison 15th ed. Ed. Principles of Internal Medicine. McGraw-Hill Med. Pub.Div.2001.
  2. Official document – WHO. Aspects sanitaires et nutricionnels des oligoéléments en ntraces.Eds. WHO - Genebra.1997.
  3. www.antenna.ch
  4. www.reseauproteus.net
 

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Caixa Postal 65 - Patos / Paraíba - CEP 58700-970  - Brazil
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