Food processing waste: Problems, current management and prospects for utilisation of the lignocellulose component through enzyme synergistic degradation

Dyk, J. Susan van; Gama, Repson; Morrison, D.P.; Swart, S.; Pletschke, Brett I.

doi:10.1016/j.rser.2013.06.016

Cited by 162 publications

(95 citation statements)

References 116 publications

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“…Another important result of this study was that it was possible to produce 583 g of biopolymer by using 40 kg of Gewürztraminer pomace as growth substrate (and 1.1 kg of the C8/C11:1 50/50 mol % solution as polymer substrate), which corresponds to a yield of 0.02 g PHA (g pomace) -1 ( Table 2). This demonstrates that wastes from wine production processes, whose disposal is costly and may have a negative impact on the environment if not done properly 23 , can be successfully valorized to synthetize high added value products such as biodegradable functionalized polymers. In addition, one should note that other valuable products such as phenolic compounds (e.g.…”

Section: Fermentation For the Production Of Tailor-made Mcl-phamentioning

confidence: 99%

Pilot-scale Production of Functionalized mcl-PHA from Grape Pomace Supplemented with Fatty Acids

Follonier

Riesen²,

Zinn

2015

Chem.Biochem.Eng.Q.

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Section: Fermentation For the Production Of Tailor-made Mcl-phamentioning

confidence: 99%

Pilot-scale Production of Functionalized mcl-PHA from Grape Pomace Supplemented with Fatty Acids

Follonier

Riesen²,

Zinn

2015

Chem.Biochem.Eng.Q.

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“…The released sugars together with galacturonic acid can be used for biofuel production as well as production of biorefinery chemicals e.g. xylitol, sorbitol (Boluda-Aguilar et al 2010;Bhushan et al 2008;Van Dyk et al 2013). Substrate and enzyme loadings had an interactive effect on the release of sugars and were the most influential parameters for apple pomace hydrolysis.…”

Section: Annmentioning

confidence: 99%

Using an artificial neural network to predict the optimal conditions for enzymatic hydrolysis of apple pomace

et al. 2017

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The enzymatic degradation of lignocellulosic biomass such as apple pomace is a complex process influenced by a number of hydrolysis conditions. Predicting optimal conditions, including enzyme and substrate concentration, temperature and pH can improve conversion efficiency. In this study, the production of sugar monomers from apple pomace using commercial enzyme preparations, Celluclast 1.5L, Viscozyme L and Novozyme 188 was investigated. A limited number of experiments were carried out and then analysed using an artificial neural network (ANN) to model the enzymatic hydrolysis process. The ANN was used to simulate the enzymatic hydrolysis process for a range of input variables and the optimal conditions were successfully selected as was indicated by the R 2 value of 0.99 and a small MSE value. The inputs for the ANN were substrate loading, enzyme loading, temperature, initial pH and a combination of these parameters, while release profiles of glucose and reducing sugars were the outputs. Enzyme loadings of 0.5 and 0.2 mg/g substrate and a substrate loading of 30% were optimal for glucose and reducing sugar release from apple pomace, respectively, resulting in concentrations of 6.5 g/L glucose and 28.9 g/L reducing sugars. Apple pomace hydrolysis can be successfully carried out based on the predicted optimal conditions from the ANN.

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“…A comparison of the amounts of fruits produced and processed in 2011/2012 is given in Table 1 (2011/2012 data). 12 The solid waste, often called pomace, is the portion of the fruit that is not utilised, such as skins, pips and fibres. The pomace has a high lignocellulose content and is very recalcitrant to degradation.…”

Section: Volume 111 | Number 5/6mentioning

confidence: 99%

Fruit waste streams in South Africa and their potential role in developing a bio-economy

Khan¹,

Roes‐Hill²,

Welz³

et al. 2015

S. Afr. J. Sci.

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Current and previous studies on bio-based (fruit) wastes and wastewaters, with a particular emphasis on research in South Africa, were reviewed. Previous studies have focused predominantly on the beneficiation and application of fruit waste as a feedstock for renewable energy. A definite gap in knowledge and application of fruit waste streams with regard to enzyme production as a value-added product is identified. The characteristics and composition of each type of fruit waste are highlighted and their potential as feedstocks in the production of value-added products is identified. The conversion of agri-industrial wastewaters to bioenergy and value-added products is discussed, with special mention of the newly published South African Bio-Economy Strategy, and the potential production of biofuels and enzymes from waste streams using recombinant Aspergillus strains. Finally, to maximise utilisation of waste streams in South Africa and abroad, a conceptual model for an integrated system using different technologies is proposed.

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Food processing waste: Problems, current management and prospects for utilisation of the lignocellulose component through enzyme synergistic degradation

Cited by 162 publications

References 116 publications

Pilot-scale Production of Functionalized mcl-PHA from Grape Pomace Supplemented with Fatty Acids

Pilot-scale Production of Functionalized mcl-PHA from Grape Pomace Supplemented with Fatty Acids

Using an artificial neural network to predict the optimal conditions for enzymatic hydrolysis of apple pomace

Fruit waste streams in South Africa and their potential role in developing a bio-economy

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