Utilization of potato pulp from potato starch processing

Klingspohn, U.; Bader, Jörg; Kruse, B.; Kishore, Pankaj; Schügerl, K.; Kracke-Helm, H.-A.; Likidis, Z.

doi:10.1016/0032-9592(93)80012-6

Cited by 36 publications

(9 citation statements)

References 8 publications

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“…Separation of potato pulp into pectins and starch on the one hand, and cellulose and hemicellulose on the other was achieved by diluted sulphuric acid. Further fractionating can be performed by precipitation pectins with methanol or acetone [156]. The extraction of galactan-rich rhamnogalacturonan I of potato pectic polysaccharides is gaining attention, due to its beneficial health effects.…”

Section: Purification Of Potato Pulpmentioning

confidence: 99%

Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review

Fritsch

Stäbler

Happel³

et al. 2017

Sustainability

138

102

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Abstract:The vast and ever-growing amount of agricultural and food wastes has become a major concern throughout the whole world. Therefore, strategies for their processing and value-added reuse are needed to enable a sustainable utilization of feedstocks and reduce the environmental burden. By-products of potato, tomato, cereals and olive arise in significant amounts in European countries and are consequently of high relevance. Due to their composition with various beneficial ingredients, the waste products can be valorized by different techniques leading to economic and environmental advantages. This paper focuses on the waste generation during industrial processing of potato, tomato, cereals and olives within the European Union and reviews state-of-the-art technologies for their valorization. Furthermore, current applications, future perspectives and challenges are discussed.

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Section: Purification Of Potato Pulpmentioning

confidence: 99%

Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review

Fritsch

Stäbler

Happel³

et al. 2017

Sustainability

138

102

View full text Add to dashboard Cite

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“…The solid cake (about 50% (w/w) of the dry pulp), which contained cellulose and hemicellulose, was washed, dried and used as substrate (pulp residue, PR). 4 Enzymatic hydrolysis was carried out with the enzyme mixture obtained by Trichoderma reesei Rut C30 and MCG77, respectively, in a rotating drum., The residue of the enzymatic decomposition (enzymatic residue, ER), about 50% (w/w) of PR, was also used as alternative substrate. About 50% (w/w) of ER was utilized by the fungi.…”

Section: Substrate Preparationmentioning

confidence: 99%

Production of enzymes from potato pulp using batch operation of a bioreactor

Klingspohn

Papsupuleti²,

Schügerl

1993

J of Chemical Tech & Biotech

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Trichoderma reesei strains MCG77 and Rut C30 were cultivated in batch operation in a stirred tank reactor on potato pulp (PP) consisting of starch, pectin, cellulose, and hemicellulose; potato pulp residue (PR) without starch and pectin; or enzymatic residue (ER), respectively, as substrate and potato protein liquor (PPL) as supplement. The enzyme mixtures produced by the fungi were characterized by four assays: with avicelase, CMCase, xylanase, and FP‐activities. Trichoderma reesei Rut C30 yielded higher activities than Trichoderma reesei MCG77. The enzyme activities and productivities obtained with PR are comparable to those obtained by other groups using pure cellulose and a synthetic nutrient solution in batch culture. An optimal operation strategy was derived to obtain maximum enzyme activity and productivity. After converting PR with the enzymes produced and using the residue, ER, as substrate for enzyme production, 85% (w/w) of the pulp was utilized.

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“…However, the only method that is presently being used for industrial recovery of protein from PL is heat coagulation [3][4][5][6][7]. In this method, steam is injected into the liquor at a pH of 5.5 to increase the temperature to 99 • C. This coagulates the proteins, which are then precipitated and collected [8]. However, the proteins obtained by this method lose their functional properties and are mostly used as an additive to cattle feed.…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic and Life Cycle Assessment of Wastewater Management from Potato Starch Production: Present Status and Alternative Biotreatments

et al. 2017

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Potato liquor, a byproduct of potato starch production, is steam-treated to produce protein isolate. The heat treated potato liquor (HTPL), containing significant amounts of organic compounds, still needs to be further treated before it is discarded. Presently, the most common strategy for HTPL management is concentrating it via evaporation before using it as a fertilizer. In this study, this scenario was compared with two biotreatments: (1) fermentation using filamentous fungus R. oryzae to produce a protein-rich biomass, and (2) anaerobic digestion of the HTPL to produce biogas. Technical, economic and environmental analyses were performed via computational simulation to determine potential benefits of the proposed scenarios to a plant discarding 19.64 ton/h of HTPL. Fungal cultivation was found to be the preferred scenario with respect to the economic aspects. This scenario needed only 46% of the investment needed for the evaporation scenario. In terms of the environmental impacts, fungal cultivation yielded the lowest impacts in the acidification, terrestrial eutrophication, freshwater eutrophication, marine eutrophication and freshwater ecotoxicity impact categories. The lowest impact in the climate change category was obtained when using the HTPL for anaerobic digestion.

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Utilization of potato pulp from potato starch processing

Cited by 36 publications

References 8 publications

Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review

Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review

Production of enzymes from potato pulp using batch operation of a bioreactor

Techno-Economic and Life Cycle Assessment of Wastewater Management from Potato Starch Production: Present Status and Alternative Biotreatments

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