Protein upgrading of orange peel waste for potential stock feed by solid substrate fermentation


Citation

Essilfie R.J., . and Bavor J.H., . and Scurray G., . Protein upgrading of orange peel waste for potential stock feed by solid substrate fermentation. pp. 25-30. ISSN 0127-7324

Abstract

Protein upgrading of orange peel waste was carried out by SSF using Aspergillus niger JB 1984 in a basal medium containing peel waste potasssium dihydrogen orthophosphate (KH2PO4) ammonium sulphate (NH4)2SO4) and molasses. After 72 hours incubation at 30 C the crude protein level of the substrate increased from 5 to 13. Protein quality of the fermented product was evaluated by Protein Efficiency Ratio (PER) Assay and a PER value of 0.78 (adjusted for casein: 2.5) was recorded. It appeared that low levels of amino acids were the major contributory factor to this low PER value. Total amino acid level measured 5.75 g per 100 g of fermented peel waste


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Abstract

Protein upgrading of orange peel waste was carried out by SSF using Aspergillus niger JB 1984 in a basal medium containing peel waste potasssium dihydrogen orthophosphate (KH2PO4) ammonium sulphate (NH4)2SO4) and molasses. After 72 hours incubation at 30 C the crude protein level of the substrate increased from 5 to 13. Protein quality of the fermented product was evaluated by Protein Efficiency Ratio (PER) Assay and a PER value of 0.78 (adjusted for casein: 2.5) was recorded. It appeared that low levels of amino acids were the major contributory factor to this low PER value. Total amino acid level measured 5.75 g per 100 g of fermented peel waste

Additional Metadata

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Item Type: Article
Additional Information: 7 tables; 31 ref. Summary (En)
AGROVOC Term: NARANJA DULCE
AGROVOC Term: DESECHOS
AGROVOC Term: ASPERGILLUS
AGROVOC Term: CALIDAD PROTEICA/ PELADO
AGROVOC Term: FERMENTACION
AGROVOC Term: CONTENIDO PROTEICO
Depositing User: Ms. Norfaezah Khomsan
Last Modified: 24 Apr 2025 05:53
URI: http://webagris.upm.edu.my/id/eprint/18654

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