Mini review: fruit residues as plant biostimulants for bio-based product recovery

Ertani, Andrea; Francioso, Ornella; Nardi, Serenella

doi:10.3934/agrfood.2017.3.251

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…Grape pomace contains other valuable components such as lignocellulosic compounds, lignin, tannins, fibers, sugars, lipids, nitrogen, and minerals, which are beneficial to soils if added in the form of composted soil improver [12]. Indeed, several compounds found in grape pomace act as growth regulators for many vascular crop plants, stimulating the uptake of mineral macronutrients, e.g., potassium, as previously confirmed for maize, pepper, and trifolium [13].…”

Section: Introductionmentioning

confidence: 57%

Combining Different Approaches for Grape Pomace Valorization: Polyphenols Extraction and Composting of the Exhausted Biomass

et al. 2022

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Grape pomace represents 60%, by weight, of the solid side-streams of the wine-making process. The quantities produced, seasonality, and the presence of polyphenols pose economic and environmental issues that require proper management approaches based on the principles of sustainability and circular economy. The present work focuses on the combined application of solid–liquid extraction of polyphenols from ground grape pomace using a hydroethanolic mixture and the composting of the exhausted pomace. The obtained results support the possibility of recovering approximately 76.5 g of extract per kg of dry grape pomace (or 1.8 g of total phenols per kg of dry grape pomace). The composting process was not affected by the extraction process. On the contrary, the composting process was enhanced by the pomace particle size reduction, in terms of final biostability and content of humic acids.

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Section: Introductionmentioning

confidence: 57%

Combining Different Approaches for Grape Pomace Valorization: Polyphenols Extraction and Composting of the Exhausted Biomass

et al. 2022

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“…Biostimulants at very low dosages stimulate plant nutrition via up-regulation of nutrient transporters (Ertani et al, 2015, 2016, 2017b). They can also mitigate the adverse effects of abiotic stress via induction of stress-related genes and antioxidant molecules (Ertani et al, 2013c, 2017a; Posmyk and Szafrańska, 2017), and enhance the plant content in beneficial phytochemicals.…”

Section: Introductionmentioning

confidence: 99%

“…Brown seaweeds (e.g., Ascophyllum nodosum, Macrocystis pyrifera , and Durvillea potatorum ) in particular, are commonly used in food processing, industrial and horticulture applications (Khan et al, 2009). They promote plant growth, seed germination rate, chlorophyll synthesis, fruit quality, earlier flowering and fructification, production of secondary roots (Khan et al, 2009; Roussos et al, 2009; Ali et al, 2015; Satish et al, 2015; Goñi et al, 2016; Ertani et al, 2017a). They can also induce resistance to pathogens and abiotic stress in plants (Joubert and Lefranc, 2008; Sharma et al, 2014; Santaniello et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…The mode of action of PHs is not completely understood, but they contain amino acids, small peptides and hormones (e.g., auxins, triacontanol) that may play a role as signaling molecules in several cellular metabolic and growth processes (Schiavon et al, 2008; Ertani et al, 2013b). An alfa alfa protein hydrolysate has been reported to up-regulate the expression of genes and increase the activity of enzymes involved in N assimilation and C primary metabolism (Schiavon et al, 2008; Ertani et al, 2009), and enhance the secondary metabolism that drives the synthesis of phenolic compounds (Ertani et al, 2011b, 2013c, 2017a). Consistently with these studies, a protein-based product in solid form has been recently shown to promote maize plant growth, protein synthesis and polyphenol accumulation (Ertani et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Two Protein Hydrolysates Obtained From Chickpea (Cicer arietinum L.) and Spirulina platensis on Zea mays (L.) Plants

et al. 2019

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Two liquid protein hydrolysates obtained from chickpea ( Cicer arietinum L.) (CA) and Spirulina platensis (SP) were analyzed via FT-IR and SERS spectroscopy. Their hormone-like activities and contents in indole-3-acetic acid (IAA), isopentenyladenosine (IPA), nitrogen (N), carbon (C), sulfur (S), phenols, amino acids, and reducing sugars were determined. CA and SP showed different chemical compositions in N, C, sugars, amino acid, and TP contents, which were generally higher in CA. The two products exhibited (IAA)-like and gibberellin (GA)-like activities and contained the hormones IAA and IPA. Specifically, CA held higher (∼3.6 fold) IAA-like activity than SP, while its GA-like activity was comparable to SP. The content in IAA was similar between hydrolysates, but CA contained ∼6 fold more IPA. CA and SP were further supplied at two different dosages (0.1 and 1 mL L –1 ) for 2 days to maize ( Zea mays L.) plants grown in hydroponics. They positively influenced plant growth and accumulation of N-compounds (proteins, chlorophylls and phenols), with a more pronounced effect observed in plants treated with CA. Furthermore, they increased the activity of two enzymes, i.e., peroxidase and esterase, which are established markers for plant growth, differentiation and organogenesis-related processes. Peroxidase activity in particular, was enhanced by ∼1.6 and ∼2.3 fold in leaves and roots of CA-treated plants, respectively. Greater accumulation of macro (Ca, Mg, and K) and micro (Cu, Zn) elements was also evident in plants supplied with these products. In conclusion, our data indicate that both CA and SP exert positive effects in maize plants. However, CA appeared to be more efficient than SP to improve plant nutrition and growth parameters in some respects, likely by virtue of its higher content in phytochemicals (hormones, phenols, amino acids, reducing sugars) that may act as signaling molecules, and more pronounced IAA-like activity.

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Prototyping extracts from Artemisia absinthium L. for their biostimulating properties yield-enhancing, and farmer income-increasing properties

Szparaga

Kocira

Kapusta

et al. 2021

Industrial Crops and Products

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Mini review: fruit residues as plant biostimulants for bio-based product recovery

Cited by 5 publications

References 21 publications

Combining Different Approaches for Grape Pomace Valorization: Polyphenols Extraction and Composting of the Exhausted Biomass

Combining Different Approaches for Grape Pomace Valorization: Polyphenols Extraction and Composting of the Exhausted Biomass

Effects of Two Protein Hydrolysates Obtained From Chickpea (Cicer arietinum L.) and Spirulina platensis on Zea mays (L.) Plants

Prototyping extracts from Artemisia absinthium L. for their biostimulating properties yield-enhancing, and farmer income-increasing properties

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