Fruit and vegetable waste management: Conventional and emerging approaches

Esparza, Irene; Jiménez-Moreno, Nerea; Bimbela, Fernando; Ancín‐Azpilicueta, Carmen; Gandı́a, Luis

doi:10.1016/j.jenvman.2020.110510

Cited by 296 publications

(139 citation statements)

References 205 publications

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“…The agricultural sector generates, by now, ∼140 billion tons of organic wastes per year (Dedousi et al, 2017;Zuin and Ramin, 2018;Gullón et al, 2020). In an attempt to control such trend, the agri-food sector is now starting to implement cleaner, and sustainable, production strategies that seek to combine process efficiency to food quality and safety (Esparza et al, 2020). As a result, agro-industrial wastes such as stalks, leaves, bark, roots, straw residues, bagasse, wood and seeds that were once seen as unimportant materials and, as a consequence, discarded, are revealing themselves to be an outstanding source of bioactive and health-promoting compounds (Dedousi et al, 2017;Panzella et al, 2020).…”

Section: Past Present and Future In Polyphenols Upcyclementioning

confidence: 99%

Use of Polyphenols as Modulators of Food Allergies. From Chemistry to Biological Implications

Bessa

Francisco

Dias

et al. 2021

Front. Sustain. Food Syst.

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The multifactorial process of aging predisposes humans to infections and inflammatory disorders, thus affecting their quality of life and longevity. Given this reality, the need to increase the consumption of bioactive compounds, like dietary polyphenols emerges in our daily basis mostly due to their health related effects in slowing-down the incidence of chronic and degenerative diseases and even food allergy, which has been growing rapidly in prevalence currently affecting 5% of adults and 8% of children. Polyphenols embrace a large family of secondary metabolites from plant-derived foods and food wastes and are considerable of interest since they have attracted special attention over the years because of their reported anti-inflammatory and antimicrobial properties along with their high antioxidant capacity. These compounds are claimed as nutraceuticals with protective effect in offsetting oxidant species over-genesis in normal cells, and with the potential ability to stop or reverse oxidative stress-related diseases. Plant-derived foods represent a substantive portion of human diet containing a significant amount of structurally diverse polyphenols. There is a need to understand the polyphenolic composition of plant-derived foods mainly because of its chemistry, which discloses the bioactivity of a plant extract. However, the lack of standardized methods for analysis and other difficulties associated to the nature and distribution of plant polyphenols leads to a high variability of available data. Furthermore, there is still a gap in the understanding of polyphenols bioavailability and pharmacokinetics, which clearly difficult the settlement of the intake needed to observe health outcomes. Many efforts have been made to provide highly sensitive and selective analytical methods for the extraction (liquid-liquid; solid-liquid; supercritical-fluid), separation (spectrophotometric methods) and structural identification (chromatographic techniques, NMR spectroscopy, MS spectrometry) of phenolic and polyphenolic compounds present in these extracts. Liquid chromatography coupled to mass spectrometry (LC-MS) has been a fundamental technique in this area of research, not only for the determination of this family of compounds in food matrices, but also for the characterization and identification of new polyphenols classified with nutraceutical interest. This review summarizes the nature, distribution and main sources of polyphenols, analytical methods from extraction to characterization to further evaluate the health effects toward immune reactions to food.

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Section: Past Present and Future In Polyphenols Upcyclementioning

confidence: 99%

Use of Polyphenols as Modulators of Food Allergies. From Chemistry to Biological Implications

Bessa

Francisco

Dias

et al. 2021

Front. Sustain. Food Syst.

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“…The agri-food sector is responsible for the generation of a vast amount of biowastes, which must be properly and efficiently handled to prevent environmental pollution risks associated with their dumping. On the other hand, this waste biomass is more and more recognized as being a bioresource that offers unprecedented opportunities for the production of a wide spectrum of high value-added products, in the framework of biorefinery concept [ 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Glycerol and Glycerol-Based Deep Eutectic Mixtures as Emerging Green Solvents for Polyphenol Extraction: The Evidence So Far

Makris

Lalas

2020

Molecules

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The acknowledgement that uncontrolled and excessive use of fossil resources has become a prime concern with regard to environmental deterioration, has shifted the orientation of economies towards the implementation of sustainable routes of production, through the valorization of biomass. Green chemistry plays a key role in this regard, defining the framework of processes that encompass eco-friendly methodologies, which aim at the development of highly efficient production of numerous bioderived chemicals, with minimum environmental aggravation. One of the major concerns of the chemical industry in establishing sustainable routes of production, is the replacement of fossil-derived, volatile solvents, with bio-based benign ones, with low vapor pressure, recyclability, low or no toxicity, availability and low cost. Glycerol is a natural substance, inexpensive and non-toxic, and it is a principal by-product of biodiesel industry resulting from the transesterification process. The ever-growing market of biodiesel has created a significant surplus of glycerol production, resulting in a concomitant drop of its price. Thus, glycerol has become a highly available, low-cost liquid, and over the past decade its use as an alternative solvent has been gaining unprecedented attention. This review summarizes the utilization of glycerol and glycerol-based deep eutectic mixtures as emerging solvents with outstanding prospect in bioactive polyphenol extraction.

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“…The sources of vegetable wastes are widespread and mainly generated in wholesale markets, supermarkets and agricultural activities [19]. The vegetable wastes constitute an important potential source for valuable natural products and chemicals, such as enzymes, exopolysaccharides, bioplastics and biofuels [20]. However, the improper disposal of vegetable wastes may lead to negative environmental issues.…”

Section: Discussionmentioning

confidence: 99%

Effect of Bacillus thuringiensis biomass and insecticidal activity by cultivation with vegetable wastes

et al. 2021

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Bacillus thuringiensis (Bt) has been regarded as a biopesticide with high efficiency and safety, while it still cannot be popularized and mass-produced because of its high production costs. In the present study, we aimed to develop a cost-effective biopesticide via the secondary use of discharged vegetable wastes as the raw fermentation medium, and the insecticidal activity of Bt strain prepared by this cheap cultivation approach was evaluated. The suitable carbon source, nitrogen source additives and optimal metal ions were screened by the single-factor test, and the optimal combination of additives was determined by orthogonal test and ANOVA analysis. We found that soluble starch (6 g l −1 ), soya bean meal (6 g l −1 ), Al 3+ (0.4 g l −1 ) and Fe 2+ (0.4 g l −1 ) were the optimal exogenous additives, and the optimal fermentation conditions were as follows: pH 7.0, temperature of 35°C and aeration of 80 ml/250 ml. Meanwhile, the bioactivity test results showed that the Bt strain prepared by cheap cultivation still exhibited a good insecticidal effect on Helicoverpa armigera compared with the standard LB medium. Collectively, our findings provided a new strategy for vegetable waste utilization with less environmental impact and reduced production cost.

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Fruit and vegetable waste management: Conventional and emerging approaches

Cited by 296 publications

References 205 publications

Use of Polyphenols as Modulators of Food Allergies. From Chemistry to Biological Implications

Use of Polyphenols as Modulators of Food Allergies. From Chemistry to Biological Implications

Glycerol and Glycerol-Based Deep Eutectic Mixtures as Emerging Green Solvents for Polyphenol Extraction: The Evidence So Far

Effect of Bacillus thuringiensis biomass and insecticidal activity by cultivation with vegetable wastes

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