E/CN .14/nrn/135 Page 7'8 - Development of the sugar industry in the West African sub-region

projection adopted, the per caput consumption in

1980,

comes to

8,53

kg (see Annex IC) which is somewhat lower than the

1963

per caput consumption, But as the level of consumption must rise over the existing level with improvement in income, it would be reasonable to assume that the per caput consumption would increase in proportion to the rate of growth in GDP, the income elasticity being only

1.0,

Thus the per caput consumption in

1980

would be

13.8

kg and for the population increase (in monetary sector) to

3,05

million, the total consumption would be

42,000

tons.

3,7,5,

Possibilities of me0ting the demand

The possibilities of domestic production of sugar in Guinea have already been investigated by Messrs. Chechhi and Company, Washington.

In their report submitted to the B=eau de Liaison, Ministers du Developpement Economique, Republique de Guinee, they conclude that Guinea has many soils potentially suitable for sugarcane production, For field production and location of sugar mills, the following areas were considered suitable,

1. Forecariah Administrative Region

2. Guekedou

"

^II

3. Macenta ^I: ^;1

4, Telimele ^II ^II

5.

Kindia ^II ^II

It was recommended that s=veys should be carried out regarding varietal performance, amom1t of land clearing and preparation required, inundation and drainage, availability of water for irrigation and road and transportation requirements,

It appears that a site near Medina 0ula in the Kindia Administrative Region on the Kolenta River has been decided upon. Forty hectares of land has already been planted with cane here, and in

1967

and

1968

the area under cane will be multiplied to

400

and

4,000

hectares, respectively, (see map of Guinea at Annex II),

..

'

Ma.:x:, Min,

E/CN .14/INR/135

79

The maximum and minimum ter.iperature ( in

°c)

and rainfall ( in mm) in the Kindia region (average of five years, 1958-1962) are as follows:

Jan.

Feb.

Mar.

Apr,, May June July Aug. Sept, Oct. Ilov, Dec.

-T,

33

35 35 35

32 27 27

29 29 30 31

T, 18

19 19

19

²⁰ ¹⁹ ¹⁹ ¹⁹ ¹⁹ ¹⁹

19

¹⁷

Rainfall 2 6 9

61 217

238

399

⁶⁰⁴

364 226

107 0

(Total

2233)

----·

The above temperature conditions are quite favourable fer sugarcane.

There is, however, an excess of rainfall with very high precipitation in August indicating the need for drainage. It will also be necessary to ])rovide irrigation during the dry months extending from December to April.

The actual results cf experiments being carried cut at the Kindia E:x:P€,riment Station (Institut de R.,oherohes Frui tieres) in regard to sugarcane have not been available but according to estin:.ates made by the Chechhi and Company a yield of 60 tens per hoctare, a sugar

recovery of

9.0

per cent on cane and a season of 120 days should be possible. While it is felt t!J.at the yields should be higher than 60 tons per hectare, fer pUipc.;es of arriving at the land area required and the capaoi ty of the factory, the above figi.u:-es may be acoepted,

For achieving the production cf 42,000 tons of sugar per annum in

l~Bo,

it will be necessary to install two sugar factories, each cf

2,0Q,) tons capacity,, These may produce plantation white sugar by- the double sulphi taticn process. A 2

,ooo

t/ d factory will produce, en the basiz of 9.0 per cent recovery, 180 tens cf sugar per day and 21₁600 tons of sugar in 120 days. Thus, two factories of this capacity would meet the requirements. In the first instance only one factory need be installed and the second one can be put up by 1972 when consumption would have increased sufficiently to Justif2, installation of another

unit., The plantation area req_uired for each such plant would be

E/CN .14/foR/135 Page 80

approximately 6₇000 hectares, which allows for a rotation of two ratoon crops and a fallow and the area necessary for farm roads, channels, buildings, etc,

3,7,6, Utilization of by-products

• r

Of the three by-products, bagasse, filter cake and molasses, bagasse and filter cake will be used as fuel and manure, respectively. As

regards molasses, the production of which from each factory would be of the order of 8,400 tons, it may be utilized for the production of alcohol and food yeast and for cattle-feeding purposes,

The requirement of alcoholic drinks in Guinea, in 1980, has been

estimated as 9,000 hectolitres. (Ref. Table 18, document E/CN,14/INR/125), For this quantity of liquors, the alcohol requirement would be about

3,900 HL and this quantity of alcohol would be produced from about 1,600 tons of molasses. It is suggested that a distillery of 4,500 hecto-litre capacity per annum may be installed to meet the demand for alcoholic drinks, A balance of 6,800 tons of molasses would be left from the molasses production of one factory, It is suggested that this quantity be utilized for the production of food yeast, It would be possible to produce about 2,000 tons of food yeast from 6₁800 tons of molasses for which one food yeast plant of 10 tons/day capacity

may be installed., For tl1e 8,600 tons of molasses produced from the second factory, a distillery of 25,000 HL capacity may be attached which will consume all the molasses. The alcohol obtained for which there is good demand in the world market, may be exported,

3,7,7, Financial requirements

The following capital investments would be necessary for the establishment of the various units suggested earlier,

L Two sugarcane plantations each comprising

6,000

hectares

2.

Two sugar factories each of

2,000

tons/day oapaoity

3.

One distillery of

4,500 BL

capacity per annum

4,

One distillery of

25,000 HL/

ar..num ca pa.city

5.

One food yeast plant of

10

tons/day capacity

Million

E/CN

.14/nrn/135

Dans le document Development of the sugar industry in the West African sub-region (Page 82-85)