White Grape Pomace Valorization for Remediating Purposes

Gavrilaș, Simona; Calinovici, I.; Chis, Sabin S.; Ursachi, Claudiu-Ștefan; Raț, Mirabela; Munteanu, Florentina-Daniela

doi:10.3390/app12041997

Cited by 3 publications

(2 citation statements)

References 64 publications

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“…Overall, a direct correlation can be observed between the antioxidant capacity, total polyphenols content and total flavonoid content of the investigated extracts as well a notable antioxidant activity compared to the internal standard used (IC 50 = 14.43 μg/mL for gallic acid). The obtained results confirm the bioactive potential of some grape by-products (hydroalcoholic extracts) derived from white grape varieties [119][120][121][122].…”

Section: Analytical Data and Results Interpretationsupporting

confidence: 79%

Grape by-Products: Potential Sources of Phenolic Compounds for Novel Functional Foods

Radulescu,

Claudia Buruleanu,

Lucian Olteanu

et al. 2024

Food Science and Nutrition

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Grapes occupy an important position in the human diet, providing both macronutrients and micronutrients indispensable for growth and development. Grapes contain enzymatic and non-enzymatic (nutritional) antioxidants, such as ascorbic acid and bioflavones. High amounts of these valuable compounds are removed through processing, when the skin and the seeds are separated from the pulp. During the vinification process, a large amount of grape pomace is generated that constitutes an important source of value-added products such as phenolic compounds, mainly flavonoids, phenolic acids, and stilbenes. Valorization of wine industry by-products like grape pomace is a suitable strategy for recovering bioactive compounds (mainly polyphenols) and reducing the environmental impact of this industrial waste. The circular bioeconomy refers to maintaining the value of the biological resources in economy for as long as possible, minimizing the waste production. Recovery and utilization of pomace from grape process favors closing the loop to ensure the abovementioned circularity. The experimental screening performed was designed to assess several indices of the polyphenolic composition of several grape byproducts (pomace, steams, and skin and seed mixture), such as total polyphenolic content, total flavonoid content, and their antioxidant activity, for two white grape Romanian varieties (i.e., Fetească Albă and Tămâioasă Românească).

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Section: Analytical Data and Results Interpretationsupporting

confidence: 79%

Grape by-Products: Potential Sources of Phenolic Compounds for Novel Functional Foods

Radulescu,

Claudia Buruleanu,

Lucian Olteanu

et al. 2024

Food Science and Nutrition

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“…Grape marc extracts can be used in the treatment of liquid effluents due to their antioxidant properties [83]. The applicability of these extracts is also being explored in Materials Engineering, such as in the development of natural dyes for fabric and as an additive in the formulation of active films and membranes [84-85].…”

Section: Potential Uses For the Grape Wastesmentioning

confidence: 99%

Valorization of Wastes Generated in Organic Grape Processing

Zanini,

Silvestre,

Baldasso

et al. 2024

Braz. arch. biol. technol.

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The development potential of byproducts from wastes of grape processing can be a promising alternative due to environmental questions. Moreover, there is the possibility of using this material in the development of products with added value. In this study, the wastes of grape skin (GSk), grape seed (GSe), and defatted grape seed with skin fragments (DGS) from 'Ives noir' grape (Vitis labrusca L.), grown under organic farming conditions, had their chemical composition and physical-chemical properties evaluated. Parameters of chemical composition, contents of phenolic compounds, total anthocyanins, flavonoids, and minerals, the antioxidant capacity, and water sorption capacity were evaluated. The wastes of grape were also analyzed by FTIR and TG/DTG. All residues had a high fiber content (54.1 -74.3 wt.%), the DGS waste had the highest contents of phenolic compounds as flavonoids, and the GSk waste had the highest content of total anthocyanins. Antioxidant capacity values were higher in the ABTS + method, with no statistical difference. On the other hand, in the DPPH antioxidant assay, the DGS and GSe wastes had higher antioxidant activity; these wastes also had greater thermal stability. The GSk waste had the highest water sorption capacity. The results show that the wastes from grape processing have the potential to be reused in applications with more value added. HIGHLIGHTS• Up to a third of the grape produced for processing is discarded as waste, without valorization.• Wastes of grape processing are rich in compounds with biological activity.• This kind of waste is also rich in nutrients making it useful for plant fertilization.• Wastes from grape processing have the potential to be reused in applications with more added value.

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Phytochemicals Derived from Agricultural Residues and Their Valuable Properties and Applications

et al. 2023

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Billions of tons of agro-industrial residues are produced worldwide. This is associated with the risk of pollution as well as management and economic problems. Simultaneously, non-edible portions of many crops are rich in bioactive compounds with valuable properties. For this reason, developing various methods for utilizing agro-industrial residues as a source of high-value by-products is very important. The main objective of the paper is a review of the newest studies on biologically active compounds included in non-edible parts of crops with the highest amount of waste generated annually in the world. The review also provides the newest data on the chemical and biological properties, as well as the potential application of phytochemicals from such waste. The review shows that, in 2020, there were above 6 billion tonnes of residues only from the most popular crops. The greatest amount is generated during sugar, oil, and flour production. All described residues contain valuable phytochemicals that exhibit antioxidant, antimicrobial and very often anti-cancer activity. Many studies show interesting applications, mainly in pharmaceuticals and food production, but also in agriculture and wastewater remediation, as well as metal and steel industries.

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White Grape Pomace Valorization for Remediating Purposes

Cited by 3 publications

References 64 publications

Grape by-Products: Potential Sources of Phenolic Compounds for Novel Functional Foods

Grape by-Products: Potential Sources of Phenolic Compounds for Novel Functional Foods

Valorization of Wastes Generated in Organic Grape Processing

Phytochemicals Derived from Agricultural Residues and Their Valuable Properties and Applications

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