Total phenolic content and antioxidant capacity of agri-food waste and by-products

Castrica, Marta; Rebucci, R.; Giromini, Carlotta; Tretola, M.; Cattaneo, D.; Baldi, Alfonso

doi:10.1080/1828051x.2018.1529544

Cited by 70 publications

(38 citation statements)

References 27 publications

(28 reference statements)

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“…The antioxidant activity of A. nodosum may also be related mainly to phlorotannins, which possess strong antioxidant capacity (Sathya et al 2017). The antioxidant activity of 55.54 ± 16.05 mmol TroloxEq/g observed for A. nodosum is comparable with a strawberry antioxidant capacity (Castrica et al 2019). Other studies also confirm the antioxidant activity of two polysaccharide groups, laminarin and fucoidans which are both present in brown algae (Kadam et al 2015).…”

Section: Resultsmentioning

confidence: 68%

In vitro evaluation of antimicrobial and antioxidant activities of algal extracts

Dell’Anno

Sotira

Rebucci

et al. 2019

Italian Journal of Animal Science

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The aim of this study was to evaluate the antioxidant capacity, the antimicrobial proprieties of algae Ascophyllum nodosum and Schizochytrium spp. against one of major swine enteric pathogen Escherichia coli O138 by broth macro-dilution method in Luria-Bertani (LB) medium. The antimicrobial effect of the algal extracts at supplementation of 0.12%, 0.06% and 0.03% (v/v) on E. coli O138, genetically characterised by PCR, was evaluated by following the bacterial growth. The antioxidant activity was determined by the ABTS Radical Cation Decolorisation Assay. In particular, the log 10 E. coli used as control resulted significantly higher than 0.12% at 3 hours (8.82 ± 0.07 and 8.18 ± 0.07 log 10 cells/mL, respectively; p<.01) suggesting an inhibitory activity related to the dose. No effect activity was observed with Schizochytrium spp. against E. coli growth. A. nodosum and Schizochytrium spp. exhibited antioxidant capacity (p<.05). The combination of them (1:1) exhibited antioxidant activity suggesting a synergistic effect (p<.05). The different proprieties of algal species that can modulate the O138 E. coli growth, one of the major pathogen of swine species, together with the antioxidant capacity, make them a promising functional feed additive to improve the gut health, therefore further studies are needed to confirm these activities in vivo. HIGHLIGHTSThe aim of the study was to evaluate the antimicrobial and antioxidant proprieties of two species of algae: Ascophyllum nodosum and Schizochytrium spp. Ascophyllum nodosum revealed antimicrobial effect against Escherichia coli O138. Both algae exhibited antioxidant capacity also with a synergistic effect. ARTICLE HISTORY

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Section: Resultsmentioning

confidence: 68%

In vitro evaluation of antimicrobial and antioxidant activities of algal extracts

Dell’Anno

Sotira

Rebucci

et al. 2019

Italian Journal of Animal Science

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“…The utilization of agro-industrial by-products as a source for high value-added products represents one of the methods for the valorization of this biomass. The positive aspects related to the use of bioactive compounds (e.g., polyphenols) in ruminant nutrition [9,10] have increased interest in using by-products rich in polyphenols as dietary ingredients in ruminant feeds [13,15]. Table 1 presents some BPRP that have been studied as ingredients in the diets of dairy small ruminants.…”

Section: By-products Naturally Rich In Polyphenolsmentioning

confidence: 99%

Can Agro-Industrial By-Products Rich in Polyphenols be Advantageously Used in the Feeding and Nutrition of Dairy Small Ruminants?

Correddu

Lunesu

Buffa

et al. 2020

Animals

122

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Recently, the interest in industrial by-products produced at the local level in Mediterranean areas, resulting from fruit and vegetable processes, has increased because of their considerable amounts of bioactive compounds, including polyphenols. In this review, we analyze the most recent scientific results concerning the use of agro-industrial by-products, naturally rich in polyphenols (BPRP), in the diets of small dairy ruminants. Effects on milk production, milk and rumen liquor fatty acid profile, metabolic parameters, and methane production are reviewed. The feed intake and digestibility coefficients were generally depressed by BPRP, even though they were not always reflected in the milk yield. The main observed positive effects of BPRP were on quality of the milk’s FA profile, antioxidant activity in milk and blood, a reduction of rumen ammonia, and, consequently, a reduction of milk and blood urea. The expected beneficial effects of dietary polyphenols in small ruminants were not always observed because of their complex and variable matrices. However, owing to the large quantities of these products available at low prices, the use of BPRB in small ruminant nutrition offers a convenient solution to the valorization of residues arising from agricultural activities, reducing feed costs for farmers and conferring added value to dairy products at the local level, in a sustainable way.

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“…Based on antimicrobial and antioxidant results obtained in tannin water extracts, we investigated the E. coli growth inhibitory and antioxidant activities of Ch100%, Qu100%, and Qu50%-Ch50% after in vitro digestion. The digestion was performed according to the method set up and validated by Minekus et al [23], and further adapted by our group [24,25].…”

Section: Chestnut and Quebracho Tannins In Vitro Digestion And Calculmentioning

confidence: 99%

“…The undigested fraction was collected and used to calculate in vitro digestibility as detailed by Castrica et al [24].…”

Section: Chestnut and Quebracho Tannins In Vitro Digestion And Calculmentioning

confidence: 99%

In Vitro Digestion of Chestnut and Quebracho Tannin Extracts: Antimicrobial Effect, Antioxidant Capacity and Cytomodulatory Activity in Swine Intestinal IPEC-J2 Cells

Reggi

Giromini

Dell’Anno

et al. 2020

Animals

Self Cite

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Quebracho (Qu) and chestnut (Ch) are natural sources of tannins and they are currently used in animal nutrition as feed ingredients. However, to date the bio-accessibility, antimicrobial, antioxidant, and intestinal epithelial cell stimulatory doses of Qu and Ch have not been determined. Our study investigates the antioxidant and E. coli F4+ and F18+ growth inhibitory activity of Qu, Ch, and their combinations after solubilization in water (to evaluate the already bio-accessible molecules) and after simulated gastro-intestinal digestion in vitro. The effect of an in vitro digested Ch and Qu combination was also tested on intestinal epithelial IPEC-J2 cells experimentally stressed with hydrogen peroxide (H2O2) and Dextran Sodium Sulfate (DSS). The results showed that undigested Qu and Ch alone, and in combination, exerted a valuable antioxidant capacity and E. coli F4+ and F18+ growth inhibitory activity. The concentration of 1200 µg/mL exhibited the highest E. coli growth inhibitory activity for all the samples tested. In addition, after in vitro digestion, Qu and Qu50%–Ch50% maintained E. coli growth inhibitory activity and a modest antioxidant capacity. Three hours pre-treatment with in vitro digested Qu50%–Ch50% counteracted the H2O2 and DSS experimentally-induced stress in the intestinal IPEC-J2 cells. Ch and Qu tannin extracts, particularly when combined, may exert E. coli F4+ and F18+ growth inhibitory activity and valuable antioxidant and cell viability modulation activities.

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Total phenolic content and antioxidant capacity of agri-food waste and by-products

Cited by 70 publications

References 27 publications

In vitro evaluation of antimicrobial and antioxidant activities of algal extracts

In vitro evaluation of antimicrobial and antioxidant activities of algal extracts

Can Agro-Industrial By-Products Rich in Polyphenols be Advantageously Used in the Feeding and Nutrition of Dairy Small Ruminants?

In Vitro Digestion of Chestnut and Quebracho Tannin Extracts: Antimicrobial Effect, Antioxidant Capacity and Cytomodulatory Activity in Swine Intestinal IPEC-J2 Cells

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