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Abstract
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Article Information:
Solid State Characterization of Anacardium occidentale Gum
Ebere I. Okoye, Anthony O. Onyekweli and Olobayo O. Kunle
Corresponding Author: Ebere Okoye
Submitted: March 01, 2012
Accepted: March 16, 2012
Published: October 01, 2012 |
Abstract:
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This study sought to characterize Anacardium occidentale gum (cashew gum-CG) from Nigeria.
Microbial load on the purified gum and acute toxicity of the gum on rabbits were determined using standard
procedures. The elemental content of extracted gum was determined using Energy Dispersive Spectroscopy
(EDS) and the amount of inorganic elements was evaluated by determining the total ash content and acid
insoluble ash. Fourier Transform Infrared spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), XRay
Powder Diffractometry (XRPD), Scanning Electron Microscopy (SEM) and swelling index test were
employed to further characterize the gum. Results revealed that no enteric or fungal microbe was present in the
extracted gum; and the LD50 of the gum in rabbits is greater than 5000 mg/Kg. The ash content and acid
insoluble ash of the purified gum were 1.5 and 0.3% respectively, while EDS revealed only Ca as the inorganic
element present in the gum. DSC revealed a melting point of 291.5ºC; XRPD showed no sharp peak; FTIR
showed characteristic bands at 710 to 1040 per cm, 1643, 2901, 3208 and 3379 per cm; SEM revealed that the
gum is amorphous; and the purified gum did not swell in water. It is therefore evident from this work that
Anacardium occidentale gum of Nigerian origin possesses some characteristics that are markedly different from
those of Brazilian or Ghanaian origin.
Key words: Acute toxicity, cashew gum characterization, microbial load, , , ,
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Cite this Reference:
Ebere I. Okoye, Anthony O. Onyekweli and Olobayo O. Kunle, . Solid State Characterization of Anacardium occidentale Gum. Research Journal of Applied Sciences, Engineering and Technology, (19): 3709-3716.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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