Awedem Et Al

Awedem et al

Greener Journal of Agricultural Sciences Vol. 5 (2), pp. 052-061, March 2015.

 ISSN: 2276-7770  

Research Paper

Manuscript Number: 012115009

DOI: http://doi.org/10.15580/GJAS.2015.2.012115009

 

Nutritive Value of three varieties
of banana and plantain blossoms from Cameroon

 

Awedem Wobiwo Florenta1, Achu Mercy Bih Loha2 and Happi Emaga Thomasbc*

 

aLaboratory for Food Science and
Metabolism, Department of Biochemistry, University of Yaoundé I,
 
P. O. Box 812 Yaoundé, Cameroon.

bPost
harvest Technology Laboratory, African Research Centre on Bananas and Plantains
(CARBAP), Njombé, P. O. Box 832 Douala, Cameroon.

cGembloux Agro-Bio Tech, Department of Industrial Biological Chemistry,
Passage des Déportés, 2, B-5030 Gembloux, Belgium.

 

1Email: wawedem @
yahoo.com; phone: 0032 485 97 87 09,

2Email: mercyabih @
gmail.com; phone: 00 237 77 98 98 51

 

*Corresponding Author’s Email:
guythappi
@yahoo. fr; phone: 00 237 99 47 19 95

 

Abstract


Background: The by-products of banana and plantain shrubs,
especially banana
blossom (banana male bud) are usually thrown away by producers in plantations,
and
produce
important quantities of post harvest waste
. The nutritional composition of three varieties of
banana and plantain blossoms
grown in Cameroon; dessert banana (Musa AAA),
plantain (Musa AAB) and cooking banana (Musa ABB), was
assessed for their potential applications.

 

Methods: The contents in water, ash, lipids, protids,
carbohydrates and crude fibres were determined using standard A.O.A.C methods.
The sugar levels were assayed using colorimetric methods, dietary fibres by
enzymatic digestion, amino acids by HPLC, fatty acids by gas chromatography and
minerals by atomic absorption spectrophotometry.

 

Results: The results showed that the water content varies from
92.29
(AAA) to 93.73 % F.W. (AAB).
The ash
content varies from
9.88 (AAB) to 12.25 % D.W. (AAA). The lipid content varies from 4.95 (AAA) to 15.69
% D.W. (ABB)
and contains
polyunsaturated fatty acids (33.80 – 41.50 g/100g FM), particularly linoleic
and gamma linolenic acids. The total protein content
varies
from 8.89 (AAB) to 10.35 % D.W. (AAA).
Leucine,
phenylalanine + tyrosine, valine, lysine and threonine are the main essential
amino acids (2.75 – 3.30 %). The total carbohydrate content varies
from
22.36 (AAA) to 62.19 % D.W. (AAB)
and
glucose, fructose and sucrose are dominant in the AAB genotype with values of
(8.15; 3.04 and 1.35 % respectively). The AAA genotype is rich in total
dietary fibres (50.09 %). These banana and plantain flowers are rich in
macrominerals. Potassium, calcium, magnesium and phosphorus levels are high in
the AAA genotype, with values of (6480; 687; 273; 211 mg/100g
D.W., respectively).

 

Conclusions: These blossoms could be considered as a source of
dietary fibres for the control of obesity and diabetes.
Further
investigations on the composition and the physiological functions (using
animal-feeding experiments) of these dietary fibres are to be considered.

 

Key words: banana and plantain
blossoms
, nutritive value, varieties.


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