The utilisation of palm oil processing effluents as substrates for microbial protein production by the fungus Aspergillus oryzae

Barker, T. W.; Worgan, J.T.

doi:10.1007/bf00505874

Cited by 30 publications

(10 citation statements)

References 14 publications

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“…If the reduction of COD were the sole end of the process then the used Saccharomyces sp L 3 1 will be considered more economical, even though the product of this process retained higher COD than the regulatory requirement for final disposal. Barker and Worgan [52] reported 77% COD reduction in POME used for mycoprotein production after 2 days, while Oswal et al [50] obtained higher COD reduction (96%) in culture of Yarrowia lipolytica NCIM 3589. Using Rhodotorula glutinis Saenge et al [53] on the other hand obtained only 66% COD removal in POME during lipid and carotenoid production.…”

Section: Discussionmentioning

confidence: 98%

Treatment and Valorization of Palm Oil Mill Effluent through Production of Food Grade Yeast Biomass

Iwuagwu

Ugwuanyi

2014

Journal of Waste Management

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Palm oil mill effluent (POME) is high strength wastewater derived from processing of palm fruit. It is generated in large quantities in all oil palm producing nations where it is a strong pollutant amenable to microbial degradation being rich in organic carbon, nitrogen, and minerals. Valorization and treatment of POME with seven yeast isolates was studied under scalable conditions by using POME to produce value-added yeast biomass. POME was used as sole source of carbon and nitrogen and the fermentation was carried out at 150 rpm, 28 ± 2°C using an inoculum size of 1 mL of 106cells. Yeasts were isolated from POME, dump site, and palm wine. The POME had chemical oxygen demand (COD) 114.8 gL−1, total solid 76 gL−1, total suspended solid (TSS) 44 gL−1and total lipid 35.80 gL−1. Raw POME supported accumulation of 4.42 gL−1dry yeast with amino acid content comparable or superior to the FAO/WHO standard for feed use SCP. Peak COD reduction (83%) was achieved with highest biomass accumulation in 96 h usingSaccharomycesspL31. POME can be used as carbon source with little or no supplementation to achieve waste-to-value by producing feed grade yeast with reduction in pollution potential.

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Section: Discussionmentioning

confidence: 98%

Treatment and Valorization of Palm Oil Mill Effluent through Production of Food Grade Yeast Biomass

Iwuagwu

Ugwuanyi

2014

Journal of Waste Management

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“…where C t is the tyrosine concentration (g L −1 ) of the hydrolysate at time t , C 0 is the tyrosine concentration (g L −1 ) of the sample at time zero and C m is the maximum tyrosine concentration (g L −1 ) of the sample. Tyrosine was measured by the method described in Barker and Worgan . The kinetic profiles of DH (%) were described using the von Bertalanffy Equation:

D H = K ([], 1 - \exp ((), prefix- r t))

…”

Section: Methodsmentioning

confidence: 99%

“…Tyrosine was measured by the method described in Barker and Worgan. 27 The kinetic profiles of DH (%) were described using the von Bertalanffy Equation: 19…”

Section: Degree Of Hydrolysis Determinationmentioning

confidence: 99%

Shrimp wastewater as a source of astaxanthin and bioactive peptides

Amado

González

Murado

et al. 2015

J of Chemical Tech & Biotech

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BACKGROUND Ultrafiltration (UF) has led to the recovery of valuable products from seafood processing wastes. However, the use of crustacean process wastewaters as a source of bioactive compounds with application in the chemical, pharmaceutical and food industries has been scarcely studied to date. RESULTS This study reports the recovery of high concentrations of astaxanthin (10–13 µg mL−1) by 300 kDa ultrafiltration of shrimp cooking wastewater, indicating that astaxanthin is associated with high MW retained proteins. Individual UF with 300, 100 and 30 kDa MWCO membranes and the sequential UF 100 → 30 kDa were the most effective configurations for protein concentration. Hydrolysates from these three protein‐concentrated fractions showed very potent ACE‐inhibitory (1.98, 9.87 and 23.10 µg mL−1 IC50 values) and ß‐carotene bleaching activities compared with hydrolysates from other fish and seafood species. CONCLUSIONS According to these results, shrimp cooking wastewater is a good source of astaxanthin and bioactive peptides. This approach based on the ultrafiltration of shrimp cooking wastewaters contributes towards the depuration of this by‐product, while enabling the recovery and production of high value‐added products. © 2015 Society of Chemical Industry

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“…Total sugars were measured by means of the phenol-sulphuric reaction [11] according to the application of Strickland and Parsons [49] with glucose as a standard. Protease activity was estimated by the method of Kunitz [31] according to the application of Barker and Worgan [4].…”

Section: Methodsmentioning

confidence: 99%