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

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

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

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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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