Valorisation of food agro-industrial by-products: From the past to the present and perspectives

Gómez-García, Ricardo; Campos, Débora A.; Aguilar, Cristóbal N.; Pintado, Manuela

doi:10.1016/j.jenvman.2021.113571

Cited by 113 publications

(53 citation statements)

References 117 publications

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“…Banana leaves can be used as packaging for certain foods [9], but conventionally they are left on the plantation ground. This practice is thought to benefit the crop; however, it has been determined that it can cause a nutritional imbalance in the plant [10], in addition to generating environmental and health problems [11,12].…”

Section: Introductionmentioning

confidence: 99%

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

et al. 2021

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Bananas are one of the most important crops worldwide. However, a large amount of residual lignocellulosic biomass is generated during its production and is currently undervalued. These residues have the potential to be used as feedstock in bio-based processes with a biorefinery approach. This work is based on the valorization of banana leaf and has the following objectives (i) to determine the effect of certain physical and environmental factors on the concentration of glucose present in banana leaf extract (BLE), using a statistical regression model; (ii) to obtain Bacterial Nanocellulose (BNC), using BLE (70% v/v) and kombucha tea as fermentation medium. In addition, the physicochemical properties of BNC were evaluated by X-ray diffraction (XRD), Fourier transform infrared (FTIR), and thermogravimetric analysis (TGA). The results indicate that storage time, location, leaf color, and petiole type are factors related to BLE concentration, which is reduced by approximately 28.82% and 64.32% during storage times of five days. Regarding BNC biosynthesis, the results indicate that the highest yield, 0.031 g/g, was obtained at 21 days. Furthermore, it was determined that the highest production rate was 0.11 gL−1h−1 at 11 days of fermentation. By FTIR, it was determined that the purification step with NaOH (3M) should be carried out for approximately two hours. This research supports the development of a circular bioeconomy around the banana value chain, as it presents a way of bioprocessing residual biomass that can be used to produce bioproducts.

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Section: Introductionmentioning

confidence: 99%

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

et al. 2021

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“…Molecules 2022, 27, 5115 2 of 14 These value-added bioactive molecules can be primary constituents such as sugars, amino acids and proteins; and secondary constituents such as alkaloids, flavonoids, tannins, phenolic compounds, among others [5]. They can be applied in medicine, nutraceuticals, cosmetics, flavors/fragrances, food additives, antimicrobials, etc.…”

Section: Introductionmentioning

confidence: 99%

Polyelectrolyte Precipitation: A New Green Chemistry Approach to Recover Value-Added Proteins from Different Sources in a Circular Economy Context

Gómez-García

Vilas-Boas

et al. 2022

Molecules

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Proteins have always been vital biological molecules used for industrial purposes, human nutrition and health. Nowadays, seeking new alternatives and sources of these biomolecules is becoming an increasing research trend derived from the present consumer awareness between food consumption and health promotion, but also on environmental sustainability. Although there are different consolidated/traditional downstream processes to obtain proteins, such as chromatography tools, alkali hydrolysis, precipitation by inorganic salts and organic solvents, their industrial-scale application still demands urgent innovation due to the poor recovery yields, high costs and time-consuming steps, environmental impact as well as some toxic concerns. Polyelectrolyte precipitation represents a green, innovative alternative for protein recovery; however, there are reduced data regarding its pilot or industrial-scale application. In this literature work, the action mechanism and principles with regards to its functionality and insights for its application on a big scale are reviewed. Overall, this review discusses the novelty and sustainability of protein precipitation by polyelectrolytes from different sources against traditional techniques as well as highlights the relationship between protein source, production relevance and bioactive properties that are key factors to maximize the application of this extractive method on a circular economy context.

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“…Historically, waste from the food chain has been mainly exploited in the production of animal feed [ 9 ]. Only in recent decades, however, have these by-products started to be considered a resource to be valorized also in other industrial contexts [ 10 , 11 ]. More recently, studies and projects have begun to analyze and exploit the enormous number of bioactive compounds, still present in by-products, for the development of products with health-promoting properties for human use (foods, cosmetics, supplements, etc.)…”

Section: Introductionmentioning

confidence: 99%

Agri-Food Waste from Apple, Pear, and Sugar Beet as a Source of Protective Bioactive Molecules for Endothelial Dysfunction and Its Major Complications

et al. 2022

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Endothelial damage is recognized as the initial step that precedes several cardiovascular diseases (CVD), such as atherosclerosis, hypertension, and coronary artery disease. It has been demonstrated that the best treatment for CVD is prevention, and, in the frame of a healthy lifestyle, the consumption of vegetables, rich in bioactive molecules, appears effective at reducing the risk of CVD. In this context, the large amount of agri-food industry waste, considered a global problem due to its environmental and economic impact, represents an unexplored source of bioactive compounds. This review provides a summary regarding the possible exploitation of waste or by-products derived by the processing of three traditional Italian crops—apple, pear, and sugar beet—as a source of bioactive molecules to protect endothelial function. Particular attention has been given to the bioactive chemical profile of these pomaces and their efficacy in various pathological conditions related to endothelial dysfunction. The waste matrices of apple, pear, and sugar beet crops can represent promising starting material for producing “upcycled” products with functional applications, such as the prevention of endothelial dysfunction linked to cardiovascular diseases.

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Valorisation of food agro-industrial by-products: From the past to the present and perspectives

Cited by 113 publications

References 117 publications

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

Polyelectrolyte Precipitation: A New Green Chemistry Approach to Recover Value-Added Proteins from Different Sources in a Circular Economy Context

Agri-Food Waste from Apple, Pear, and Sugar Beet as a Source of Protective Bioactive Molecules for Endothelial Dysfunction and Its Major Complications

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