Bioactives from Agri-Food Wastes: Present Insights and Future Challenges

Othman, Sana Ben; Jõudu, Ivi; Bhat, Rajeev

doi:10.3390/molecules25030510

Cited by 279 publications

(127 citation statements)

References 171 publications

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“…However, studies related to the extractions of such functional ingredients concentrate mainly on the extraction technologies, and there are relatively few studies on the applications of these extracts in food products. Adapted and modified from [72,73].…”

Section: Major Functional Ingredients and Bioactives That Can Be Extrmentioning

confidence: 99%

Apple Pomace as a Functional and Healthy Ingredient in Food Products: A Review

et al. 2020

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Apple pomace is a major by-product obtained during apple juice processing. Several million metric tons of apple pomace are estimated to be generated worldwide every year. However, the recovery rate of this by-product is low. Pomace is commonly disposed and thrown away as a waste, which results in environmental problems and even public health hazards. As a by-product of the apple juice processing industries, pomace contains plenty of different varieties of nutritionally important compounds, such as carbohydrates, phenolic compounds, dietary fiber and minerals. These important compounds can be recovered from apple pomace, or there is even a possibility of using apple pomace in the food systems directly or after minimal processing. Therefore, apple pomace can be utilized in food products to improve their health benefits and commercial values. This review focuses on the current food applications and influence of apple pomace on the characteristics of various food products.

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Section: Major Functional Ingredients and Bioactives That Can Be Extrmentioning

confidence: 99%

Apple Pomace as a Functional and Healthy Ingredient in Food Products: A Review

et al. 2020

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“…Juice processing by-products are usually buried directly in the soil, which causes serious environmental pollution [9]. However, these by-products still contain bioactive compounds such as tannins, flavonoids, flavanols, vitamins, essential minerals, fatty acids, volatiles, and pigments, which can be utilized as natural bioactive compounds [10]. The scientific community has suggested the use of these natural compounds instead of synthetic compounds due to their synergy, potency, and minimal side effects [11].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Functional Bioelastomer for Food Packaging from Aronia (Aronia melanocarpa) Juice Processing By-Products

Lee

Chun

Jang

et al. 2020

Foods

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Carbon-neutral and eco-friendly biomass-based processes are recognized as a frontier technology for sustainable development. In particular, biopolymers are expected to replace petrochemical-based films that are widely used in food packaging. In this study, the fabrication conditions of functional (antioxidant and antibacterial) bioelastomers were investigated using by-products from the juice processing (experimental group) and freeze-dried whole fruit (control group). Bioelastomer was fabricated by a casting method in which polydimethylsiloxane (PDMS) was mixed with 25 or 50 wt% aronia powder (juice processing by-products and freeze-dried whole fruit). The mechanical properties of the bioelastomers were measured based on tensile strength and Young’s modulus. When the mixture contained 50 wt% aronia powder, the strength was not appropriate for the intended purpose. Next, the surface and chemical properties of the bioelastomer were analyzed; the addition of aronia powder did not significantly change these properties when compared to PDMS film (no aronia powder). However, the addition of aronia powder had a significant effect on antioxidant and antimicrobial activities and showed higher activity with 50 wt% than with 25 wt%. In particular, bioelastomers fabricated from aronia juice processing by-products exhibited approximately 1.4-fold lower and 1.5-fold higher antioxidant and antimicrobial activities, respectively, than the control group (bioelastomers fabricated from freeze-dried aronia powder).

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“…Most fruit wastes have been utilized as a source of livestock feeds or as organic fertilizers. Since non-edible parts of fruit such as peel, skin parts, and seed often contain higher amounts of bioactive compounds than the edible parts, it has attracted attention to obtain the bioactive compounds in the wastes [1][2][3][4]. One of the most common target compounds from fruit wastes is polyphenols.…”

Section: Discussionmentioning

confidence: 99%

“…Fruits and their industries generate large quantities of waste and by-products, and the management of waste and by-products is one of the major environmental issues [1][2][3][4]. On the other hand, recent research has showed that it is rich in potentially valuable components such as polyphenol, pigments, and vitamins in the waste and by-products.…”

Section: Introductionmentioning

confidence: 99%

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Subcritical Methanol Extraction of the Stone of Japanese Apricot Prunus mume Sieb. et Zucc.

et al. 2020

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The pits of Japanese apricot, Prunus mume Sieb. et Zucc., which are composed of stones, husks, kernels, and seeds, are unused by-products of the processing industry in Japan. The processing of Japanese apricot fruits generates huge amounts of waste pits, which are disposed of in landfills or, to a lesser extent, burned to form charcoal. Mume stones mainly consist of cellulose, hemicellulose, and lignin. Herein, we attempted to solubilize the wood-like carapace (stone) encasing the pit by subcritical fluid extraction with the aim of extracting useful chemicals. The characteristics of the main phenolic constituents were elucidated by liquid chromatography-mass spectrometry (LC-MS) and nuclear magnetic resonance (NMR) analyses. The degrees of solubility for various treatments (190 °C; 3 h) were determined as follows: subcritical water (54.9%), subcritical 50% methanol (65.5%), subcritical 90% methanol (37.6%), subcritical methanol (23.6%), and subcritical isopropyl alcohol (14.4%). Syringaldehyde, sinapyl alcohol, coniferyl alcohol methyl ether, sinapyl alcohol methyl ether, 5-(hydroxymethyl)-2-furfural, and furfural were present in the subcritical 90% methanol extract. Coniferyl and sinapyl alcohols (monolignols) are source materials for the biosynthesis of lignin, and syringaldehyde occur in trace amounts in wood. Our current findings provide a solubilization method that allows the main phenolic constituents of the pits to be extracted under mild conditions. This technique for obtaining subcritical extracts shows great potential for further applications.

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Bioactives from Agri-Food Wastes: Present Insights and Future Challenges

Cited by 279 publications

References 171 publications

Apple Pomace as a Functional and Healthy Ingredient in Food Products: A Review

Apple Pomace as a Functional and Healthy Ingredient in Food Products: A Review

Fabrication of Functional Bioelastomer for Food Packaging from Aronia (Aronia melanocarpa) Juice Processing By-Products

Subcritical Methanol Extraction of the Stone of Japanese Apricot Prunus mume Sieb. et Zucc.

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