Valorization of potato peel residues to produce a bioflocculant to be used in the treatment of liquid effluents

Choumane, Fatima Zohra; Zaoui, Fatiha; Kandouci, Fatma; Maachou, Bouhana; Benguella, Belkacem

doi:10.1088/1757-899x/1204/1/012002

Cited by 2 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Algeria, considerable amounts of potato by-products are generated, but to date, the studies that were carried out mainly focused on their use as flocculants for wastewater treatment [ 20 , 21 ] and for the removal of reactive blue 72 from aqueous solutions [ 22 ]. They are also used for the production of second-generation bioethanol [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Kinetic Modeling of Convective and Microwave Drying of Potato Peels and Their Effects on Antioxidant Content and Capacity

et al. 2023

View full text Add to dashboard Cite

This study deals with drying properties and focuses on the drying kinetics of potato peels (PP) by two processes, namely convection drying (CD) at various temperatures (40, 60, 80, 100, and 120 °C) and microwave drying (MD) at different powers (200, 400, 600, and 800 W). In addition, the effectiveness of the adopted processes was evaluated in terms of antioxidant contents and antioxidant capacity. A total of 22 mathematical models were undertaken to predict the drying kinetics, and the best model was selected based on the highest R2 values and the lowest χ2 and RMSE values. The Sledz model was the more appropriate for both methods with values of 0.9995 ≤ R2 ≤ 0.9999, χ2 = 0.0000, and 0.0054 ≤ RMSE ≤ 0.0030 for CD, and the results of MD were 0.9829 ≤ R2 ≤ 0.9997, 0.0000 ≤ χ2 ≤ 0.0010, and 0.0304 ≤ RMSE ≤ 0.0053. The best drying rates (DR) of PP were assigned to a temperature of 120 °C and a power of 600 W with values of 0.05 and 0.20 kg water/kg dw min, respectively. A potential explanation is that as PP’s moisture content decreased during the drying process, there was a drop in absorption, which led to a reduction in the DR. The energy consumption of both processes was assessed, and it rose with increasing temperature or power. The microwave process reduced the drying time, consumed lower energy, and presented a higher drying efficiency at a moderate power level compared to the convection process. Furthermore, MD preserved antioxidants better compared to CD and improved the antioxidant capacity. Therefore, the proposed microwave process for drying PP is suggested for its expected use in various fields, including the food processing industries.

show abstract

Section: Introductionmentioning

confidence: 99%

Kinetic Modeling of Convective and Microwave Drying of Potato Peels and Their Effects on Antioxidant Content and Capacity

et al. 2023

View full text Add to dashboard Cite

show abstract

Rheological and Textural Investigation to Design Film for Packaging from Potato Peel Waste

Mileti,

Baldino,

Marchio

et al. 2024

Gels

View full text Add to dashboard Cite

(1) Background: The recovery of potato waste for circular-economy purposes is a growing area of industrial research. This waste, rich in nutrients and potential for reuse, can be a valuable source of starch for packaging applications. Rheology plays a crucial role in characterizing film-forming solutions before casting. In this work, packaging film was prepared from potato waste using rheological information to formulate the film-forming solution. (2) Methods: To this aim, rheological measurements were carried out on starch/glycerol-only samples, and the data obtained were used to optimize the formulation from the waste. The polyphenol content of the peels was analyzed, and the resulting films were comprehensively characterized. This included assessments of color, extensibility, Fourier-transform infrared (FT-IR) spectroscopy, surface microscopy, and contact angle. (3) Results: Polyphenol-loaded films, suitable for packaging applications, were developed from potato waste. These films exhibited distinct properties compared to those made with pure starch, including an improved wettability of about 75° for the best sample and a high elastic modulus of about 36 MPa, which reduces the deformability but enhances the resistance against the stress. (4) Conclusions: Through rheological studies, we were able to design films from potato peel waste. These films demonstrated promising mechanical performance.

show abstract

Valorization of potato peel residues to produce a bioflocculant to be used in the treatment of liquid effluents

Cited by 2 publications

References 25 publications

Kinetic Modeling of Convective and Microwave Drying of Potato Peels and Their Effects on Antioxidant Content and Capacity

Kinetic Modeling of Convective and Microwave Drying of Potato Peels and Their Effects on Antioxidant Content and Capacity

Rheological and Textural Investigation to Design Film for Packaging from Potato Peel Waste

Contact Info

Product

Resources

About