Assessment of nutritional quality of water hyacinth leaf protein concentrate
| Autor: | Chris C. Osubor, Oyeyemi Adeyemi |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
0106 biological sciences
Leaf protein concentrate Extraction Nutritional quality 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences lcsh:Aquaculture. Fisheries. Angling Physicochemical characteristics Nutrient Botany Water hyacinth Food science Ecology Evolution Behavior and Systematics lcsh:Environmental sciences 0105 earth and related environmental sciences Water Science and Technology chemistry.chemical_classification lcsh:SH1-691 lcsh:GE1-350 biology Hyacinth 010604 marine biology & hydrobiology Extraction (chemistry) Carbohydrate biology.organism_classification Amino acid chemistry Nuisance |
| Zdroj: | Egyptian Journal of Aquatic Research, Vol 42, Iss 3, Pp 269-272 (2016) |
| ISSN: | 1687-4285 |
| DOI: | 10.1016/j.ejar.2016.08.002 |
| Popis: | This study was embarked upon to convert water hyacinth, an environmental nuisance, to a natural resource for economic development. Water hyacinth leaf protein concentrate (WHLPC) was extracted in edible form and determination of its physicochemical characteristics, total alkaloids and phenolic compounds was done. Analysis of proximate composition and amino acid profile of the WHLPC was also done. The level of heavy metals (mg/kg) in WHLPC was found to be Cd (0.02 ± 0.001), Cr (0.13 ± 0.001), Pd (0.003 ± 0.001) and Hg (0.02 ± 0.001) while concentrations of Pb, Pt, Sn, Fe, Cu, Zn, Ni and Co were found to be 0.001 ± 0.00. Level of all heavy metals was found to be within safe limit. Proximate analysis revealed that protein in WHLPC accounted for 50% of its nutrients, carbohydrate accounted for 33% of its nutrients while fat, ash and fibre made up the remaining nutrients. Amino acid analysis showed that WHLPC contained 17 out of 20 common amino acids, particularly, Phe (3.67%), Leu (5.01%). Level of total alkaloids and phenolic compounds was 16.6 mg/kg and 6.0 mg/kg respectively. Evidence from this study suggests that WHLPC is a good source of leaf protein concentrate (LPC); it is nutritious and acutely non toxic. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|