Apple orchard waste recycling and valorization of valuable product-A review

Duan, Yumin; Mehariya, Sanjeet; Kumar, Avanish; Singh, Ekta; Yang, Jianfeng; Kumar, Sunil; Li, Huike; Awasthi, Mukesh Kumar

doi:10.1080/21655979.2021.1872905

Cited by 65 publications

(19 citation statements)

References 114 publications

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“…Biomass residues from agricultural crops and industrial processing may be a feasible option for energy production owing to their social and environmental benefits 66 . The reuse of apple by‐products can contribute to obtaining bio‐products and bioenergy, such as biofuels, biofertilizers, biochar, organic acids, antioxidants, enzymes, dietary fibers, biologically based materials and emulsifiers 19,30 . Table 5 summarizes the studies on the recovery of value‐added products from apple waste.…”

Section: Management Of Apple Waste and Production Of Value‐added Prod...mentioning

confidence: 99%

“…These bioactive compounds and fibers can be used in food systems directly or after minimal processing 19 . Currently, apple pomace is used to feed animals, 27,28 disposed of in open‐air landfills 27,29 and used as an agricultural fertilizer 30 . Therefore, there is a lack in the apple industry of implementation of eco‐friendly technological routes to recover innovative value‐added products and bioenergy from apple waste.…”

Section: Introductionmentioning

confidence: 99%

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Sustainable valorization of apple waste in a biorefinery: a bibliometric analysis

Oliveira

Ampese

Sforça

et al. 2022

Biofuels Bioprod Bioref

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This bibliometric study explored the scientific publications of apple waste over the period from 2000 to 2020, aiming to contribute to the sustainable development of the apple industry toward waste-biorefinery implementation, advocating a circular economy. The bibliometric study covered the publications' evolution, research areas, top-cited papers, international collaborative networks, top countries and journals. The results demonstrate that 628 documents (604 articles and 24 reviews) studied apple waste over the last 20 years, and the number of publications exponentially increased after 2010. The most used keywords revealed that the main studied topics in the field were associated with technologies to manage apple pomace, the main solid waste generated from juice production, demonstrating a research trend toward renewable energy and bio-based products. The bibliometric study indicated that the most productive countries are China, India and the USA. Apple waste could be an environmentally friendly feedstock for biorefinery design and implementation. The biorefinery could produce value-added products (polyphenols, pectin, sugars and essential oils) and bioenergy (ethanol, methane, electricity and heat) in different industrial arrangements. The main technological routes described in the literature have been associated with the production of lactic acid, xylitol, ethanol, bioactive compounds, xyloglucan, films, pectin, acetic acid, acetone-butanol-ethanol, emulsifiers and inulinase enzyme. In conclusion, this review contributes to the decision-making for the industrial implementation of a waste biorefinery, advocating circular economy transition based on the sustainable valorization of apple waste.

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Section: Management Of Apple Waste and Production Of Value‐added Prod...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sustainable valorization of apple waste in a biorefinery: a bibliometric analysis

Oliveira

Ampese

Sforça

et al. 2022

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

show abstract

“…Recently, it is most commonly utilized in oil refining, production of fertilizer, and composting, while transportation and utilities are developing business sectors based on hydrogen gas (Duan et al, 2021;Esfandyari, Hafizi, & Piroozmand, 2021;Ordoñez-Frías et al, 2020). The demand for hydrogen generation has expanded significantly (Lui, Chen, Tsang, You, & Reviews, 2020;Nicita, Maggio, Andaloro, & Squadrito, 2020;Solomon & Banerjee, 2006).…”

Section: Introductionmentioning

confidence: 99%

Process Design for Biohydrogen Production from Waste Materials and Its Application

Baloch¹,

Talpur²,

Iqbal³

et al. 2022

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Biohydrogen is regarded as an attractive future clean energy carrier due to its high energy content and environmentally friendly conversion. Biohydrogen reactor is widely used in studies concerning the anaerobic co-digestion of food waste, sewage sludge, wastewater and other organic solids. Anaerobic digestion is a series of biological processes in which microorganisms break down biodegradable material (biomass or waste feedstock) in the absence of oxygen to produce biogas, which may generate electricity and heat, or can be processed into renewable natural gas and transportation fuels. This review article explains the scientific processes of anaerobic digestion process such as hydrolysis, acidogenesis, acetogenesis and hydrogenesis as well as methods to produce biohydrogen gas such as fermentation and biophotolysis for the waste management technology and sources of renewable energy and concludes with solutions that may allow anaerobic digestion to become more widely adopted throughout the developing countries to control the waste management system.

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“…AP is rich in both soluble carbohydrates such as simple sugars (fructose, glucose, and sucrose) and polysaccharides (cellulose, hemicellulose, and pectin), showing high potential for further bio-conversion purposes [7][8][9]. In this context, bioconversion of AP into biogas provides an excellent possibility to reduce the environmental challenge faced in the management of AP waste while producing renewable energy in the form of methane.…”

Section: Introductionmentioning

confidence: 99%

“…This practice is in agreement with sustainability, which calls for achieving closed-loop systems to maximize the recovery of bioenergy and bio-based materials derived from the waste at end-of-life. Therefore, the wastes should be considered as "renewable resources" that can be reused to generate valuable and marketable products, replacing non-renewable fossil-based resources [9,10].…”

Section: Introductionmentioning

confidence: 99%

Supplementation of Carbon-Based Conductive Materials and Trace Metals to Improve Biogas Production from Apple Pomace

et al. 2021

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Due to its high water and organic contents, management of apple pomace (AP) poses several waste management challenges on the apple juice and cider producing industries. Bioconversion of AP into biogas provides an excellent possibility to reduce the environmental challenge faced in the management of AP waste along with producing renewable energy in the form of methane. This study investigated the effect of carbon-based conductive materials (biochar and graphene) and trace metals supplementation to improve biogas production from AP. The results indicate that supplementation of biochar, trace metals, and graphene significantly improves the biogas production from AP. Trace metal and biochar supplementation at a COD concentration of 6000 mg/L resulted in 7.2% and 13.3% increases in the biogas production, respectively. When trace metals and biochar were supplemented together, the biogas production increased by 22.7%. This synergistic effect was also observed at the COD concentration of 12,000 mg/L. The improvement in the biogas formation was significantly higher for graphene supplemented reactors (27.8%). Moreover, biochar and trace metals supplementation also led to 19.6% and 23.0% increases in the methane yield relative to the reactor fed only with AP, respectively. These results suggest anaerobic digestion supplemented with carbon-based conductive materials and trace metals is a viable option for valorizing apple pomace.

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Apple orchard waste recycling and valorization of valuable product-A review

Cited by 65 publications

References 114 publications

Sustainable valorization of apple waste in a biorefinery: a bibliometric analysis

Sustainable valorization of apple waste in a biorefinery: a bibliometric analysis

Process Design for Biohydrogen Production from Waste Materials and Its Application

Supplementation of Carbon-Based Conductive Materials and Trace Metals to Improve Biogas Production from Apple Pomace

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