Production of Single Cell Protein and Polyhydroxyalkanoate from Carica papaya Waste

Umesh, Mridul; Priyanka, Kumaresan; Thazeem, Basheer; Preethi, Kathirvel

doi:10.1007/s13369-017-2519-x

Cited by 44 publications

(20 citation statements)

References 24 publications

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“…Generally, the temperature of the cultivation medium is one of the most important variables for the growth of microbes. The range of temperature affects growth rate, nutritional requirement, as well as chemical and enzymatic composition of the cells (Umesh et al, 2017). The optimum temperature for the growth of Aspergillus species was reported to the range between 30 and 35 °C, which supports the present findings (Dinarvand et al, 2017;Shehu and Bello, 2011).…”

Section: Effect On Protein Contentsupporting

confidence: 89%

“…Protein deficiency is one of the major key challenges especially in the developing countries (Umesh et al, 2017). The main reasons behind this issue are a fast increase in population growth rate, scarcity of agricultural land, as well as changes in lifestyle.…”

Section: Introductionmentioning

confidence: 99%

“…Current status revealed that around 12.5% of people all over the world have been affected by chronic hunger, malnutrition and lack of nutritious food (FAO, 2013). Protein-calorie malnutrition (PCM) generally causes impaired mental growth and low immunity in children (Umesh et al, 2017). The demand for protein-rich food against its supply is quite high due to increasing world population, which creates insufficiency in the supply chain (Rajoka et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…In the recent years, several agro-industrial wastes such as papaya waste, rice husk, potato residue, wheat bran, poultry fodder, pineapple waste, orange peels etc. have been used to produce SCP (Nwufo et al, 2014;Rajoka et al, 2004;Rosma et al, 2005;Shipra and Diksit, 2017;Umesh et al, 2017;Yunus et al, 2015). Banana peel constituted a considerable amount of lignocelluloses and other nutrients (Anhwange et al, 2009), which can be used to support microbial growth and SCP production (Yabaya and Ado, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization of process parameters for improved production of biomass protein from Aspergillus niger using banana peel as a substrate

Kamal

Ali

Shishir

et al. 2019

Food Sci Biotechnol

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This study was aimed to optimize the process variables for improved production of biomass protein using Aspergillus niger from banana fruit peel by the use of response surface methodology. A five-level-four factors central composite rotatable design was applied to elucidate the influence of process variables viz. temperature (20-40 °C), pH (4-8), substrate concentration (5-25%), and fermentation period (1-5 days) on biomass and protein content. The second-order polynomial models were established, which effectively explicated the variation in experimental data and significantly epitomized the appreciable correlation between independent variables and responses. After numerical optimization, the predicted optimum conditions (temperature of 31.02 °C, pH of 6.19, substrate concentration of 19.92%, and the fermentation period of 4 days) were obtained with biomass of 24.69 g/L and protein of 61.23%, which were verified through confirmatory experiments.

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Section: Effect On Protein Contentsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of process parameters for improved production of biomass protein from Aspergillus niger using banana peel as a substrate

Kamal

Ali

Shishir

et al. 2019

Food Sci Biotechnol

View full text Add to dashboard Cite

show abstract

“…However, when its application exceeds the soil bearing capacity, biogas slurry can cause pollution, at which point it is necessary to treat it as wastewater. At present, traditional physical, chemical, and biological wastewater treatment methods are used to treat biogas slurry with a high concentration of ammonia ( Umesh et al., 2017 ). Biological nitrification and denitrification processes can convert ammonia nitrogen into nitrogen, which is discharged into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

The production of single cell protein from biogas slurry with high ammonia-nitrogen content by screened Nectaromyces rattus

et al. 2021

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In this study, a novel method was proposed to obtain single cell protein ( SCP ) in yeast by using biogas slurry as culture medium. The results show that Nectaromyces rattus was the most efficient at producing SCP among the 7 different yeasts studied. Acetic acid was a better pH regulator than hydrochloric acid. After culture with the initial NH 4 + -N concentration 2,000 mg/L, C/N ratio 6:1, the initial pH 5.50 and rotation speed of 200 rpm, a total cell dry weight of 12.58 g/L with 35.96% protein content was obtained. Nineteen amino acids accounted for 46.85% of cell dry weight, and proline content was as high as 12.0% of the cell dry weight. However, sulfur-containing amino acids, including methionine and cystine, were deficient. Further research should focus on the high cell density culture to increase SCP production.

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Production of polyhydroxyalkanoate nanoparticles using a green solvent

Zhang

Cran

2022

J of Applied Polymer Sci

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Biopolymer nanoparticles (NPs) produced from poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) are typically formed by first dissolving the polymer in organic solvents. In order to eliminate the use of toxic solvents, an alternative "green" solvent system using glacial acetic acid was used in this study for the preparation of NPs via nanoprecipitation. The influence of various factors on the resulting particle size was investigated including the use of an emulsifying agent, temperatures of stock and receiving solutions, and concentration of stock solution. The addition of emulsifier significantly reduced the NP size, whereas temperature had minimal influence on the particle size over the tested range. By varying the concentration of the stock solution, the size of the NPs can be adequately controlled. The minimum size of NPs prepared using a stock solution of 0.5 ml at 80 C into a 100 ml receiving solution was 70 nm with a narrow size distribution. Imaging by scanning electron microscopy revealed smooth spherical NPs and thermal and structural analysis showed only minor changes in properties in comparison with the source PHBV powder. Overall, the results show that glacial acetic acid is an appropriate alternative solvent for the dissolution of PHBV and the subsequent formation of biopolymer NPs.

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Production of Single Cell Protein and Polyhydroxyalkanoate from Carica papaya Waste

Cited by 44 publications

References 24 publications

Optimization of process parameters for improved production of biomass protein from Aspergillus niger using banana peel as a substrate

Optimization of process parameters for improved production of biomass protein from Aspergillus niger using banana peel as a substrate

The production of single cell protein from biogas slurry with high ammonia-nitrogen content by screened Nectaromyces rattus

Production of polyhydroxyalkanoate nanoparticles using a green solvent

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