Potential of fruit pits as aggregate in concrete

Grubeša, Ivanka Netinger; Marković, Branimir; Nyarko, Marijana Hadzima; Krstić, Hrvoje; Brdarić, Jelena; Filipović, Nikolina; Szenti, Imre; Kukovecz, Ákos

doi:10.1016/j.conbuildmat.2022.128366

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…Interest has also been raised recently with peach seeds, which, as is the case with kernels, are well known for the extraction of bioactive compounds [66]. Some other fruit seeds, such as cherry pits, for their geometry particularly close to sphericity, have also been proposed for use as aggregates in cement [67], while their controlled porosity raised attention for application in lithium-sulfur batteries [68]. In other cases, where the complexity of the structure of fruit seeds is considerably higher, and powdering does not appear to be a facile option such as, e.g., for cactus fruit seeds, the direct extraction of polysaccharides proves to be a more viable route for their exploitation [69].…”

Section: Seed-based Fillers/reinforcementsmentioning

confidence: 99%

Sustainable Biocomposites: Harnessing the Potential of Waste Seed-Based Fillers in Eco-Friendly Materials

Fragassa,

Vannucchi de Camargo,

Santulli

2024

Sustainability

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With the growing concerns over environmental degradation and the increasing demand for sustainable materials, eco-friendly composites have gained considerable attention in recent years. This review paper delves into the promising realm of seed-based fillers, reinforcements and polysaccharidic matrices in the production of biocomposites that are yet focusing on those seeds, which can be considered industrial process waste. Seeds, with their inherent mechanical properties and biodegradability, which are often the waste of production systems, offer a compelling solution to reduce the environmental impact of composite materials. This paper explores the properties of various seeds considered for composite applications and investigates the processing techniques used to incorporate them into composite matrices. Furthermore, it critically analyzes the influence of seed fillers on the mechanical and physical properties of these eco-friendly composites, comparing their performance with traditional counterparts. The environmental benefits, challenges, and limitations associated with seed-based composites from waste seeds are also discussed, as well as their potential applications in diverse industries. Through an assessment of relevant case studies and research findings, this review provides valuable insights into the outlook of seed-based composites as a sustainable alternative in the composite materials landscape, emphasizing their role in promoting a greener and more responsible approach to materials engineering.

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Section: Seed-based Fillers/reinforcementsmentioning

confidence: 99%

Sustainable Biocomposites: Harnessing the Potential of Waste Seed-Based Fillers in Eco-Friendly Materials

Fragassa,

Vannucchi de Camargo,

Santulli

2024

Sustainability

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“…Akalın et al 17 chose the production of bio-oil through hydrothermal processing as a valorization route. A completely different approach was proposed by Grubesa et al 18 considering cherry stones as aggregate in concrete. Despite these alternatives, the extraction of lipids remains the most consolidated and explored valorization method due to the high value of the fraction recovered.…”

Section: Introductionmentioning

confidence: 99%

“…chose the production of bio‐oil through hydrothermal processing as a valorization route. A completely different approach was proposed by Grubesa et al 18 . considering cherry stones as aggregate in concrete.…”

Section: Introductionmentioning

confidence: 99%

Lipid extraction of high‐moisture sour cherry (Prunus cerasus L.) stones by supercritical carbon dioxide

Kniepkamp,

Errico,

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDSour cherry (Prunus cerasus L.) stones are the major byproduct of the cherry industry and the efficient management of this biowaste can lead to achieving the food processing sustainability aimed at by the modern food industry. Despite its significant content of lipids, the valorization of cherry stone waste as feedstock for lipid extraction appears to be limited due to the high moisture content. This study explores the primary factors that affect the yield of lipid extraction using Soxhlet, Randall and supercritical carbon dioxide (scCO2) extraction methods, with a particular emphasis on yield optimization for green extraction technologies (scCO2).RESULTSThe investigation revealed an increased lipid extraction yield for scCO2 from 7.4 for dry crushed stones to 20.6 g per 100 g dry weight when the cherry kernels are separated. The high initial moisture content affected all three extraction methods, but mostly impacted the scCO2 extraction, resulting in the co‐extraction of an aqueous phase. Lipid and aqueous yield could be manipulated by time, temperature and pressure. However, no observable influence on the composition of fatty acid methyl esters was detected.CONCLUSIONNumerous approaches are shown to enhance the lipid yield from cherry stone waste, depending on the desired outcome. When dealing with wet samples, Randall extraction proves to be the most effective method. On the other hand, scCO2 extraction presents distinct advantages, such as the extraction of food‐grade lipids and the co‐extraction of a unique aqueous phase, which comes at the expense of a reduced lipid yield. © 2024 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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“…Therefore, the question remains if a compatibilizer would also improve the composite properties for cherry pits. Fruit pits were not only investigated in polymers but also in concrete, but in that case more for the capability to reduce the thermal conductivity of the concrete and not for any mechanical improvement or adhesion properties between the concrete and the pits [18].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Cherry Pit Particles as a Natural Reinforcement in Polypropylene

Burgstaller

Renner²

2023

Macromol

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Using natural materials as reinforcements for polypropylene to alter composite properties and cost is a well-known approach. Often, wood particles are used for that. These give reasonable reinforcement, but are also sought after by other industries, e.g., for energy production, and may also not be available everywhere. Therefore, the aim of this work was to investigate cherry pit particles as an alternative material for polypropylene reinforcement. Cherry pits originate as a by-product from fruit processing and have not been utilized until now as reinforcement. Cherry pit particles were produced by milling the pits, and afterwards composites were produced by compounding and injection molding. Mechanical properties and melt flow were investigated. We found some reinforcement effect, but to a lesser extent than wood particles. The cherry pit particles contain some fatty acid components, which reduce tensile properties and increase the melt flow rate of the composites. For future applications, methods for reducing these fatty acids to improve reinforcement capabilities should be investigated.

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Potential of fruit pits as aggregate in concrete

Cited by 5 publications

References 18 publications

Sustainable Biocomposites: Harnessing the Potential of Waste Seed-Based Fillers in Eco-Friendly Materials

Sustainable Biocomposites: Harnessing the Potential of Waste Seed-Based Fillers in Eco-Friendly Materials

Lipid extraction of high‐moisture sour cherry (Prunus cerasus L.) stones by supercritical carbon dioxide

Feasibility of Cherry Pit Particles as a Natural Reinforcement in Polypropylene

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