Distribution of nutrients in anaerobic digestion of vine shoots

Gómez, Susana; Causapé, Ma.C. Cartagena; Martinez, A. Arce

doi:10.1016/0960-8524(93)90096-t

Cited by 11 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2016, the amount of vine-canes produced corresponded to approximately 3.4 × 10 5 , 6.4 × 10 6 and 1.3 × 10 7 tons in Portugal, Europe and globally, respectively [3,4]. Usually, after the harvesting season, vine-canes are burned [5] or incorporated in the soil, which due to the degradation of organic matter, enhances the soil health reducing the need to apply organic fertilizers and/or correctives [6]. Even so, there has been a search for more profitable applications for vine-canes, and several alternatives were already investigated, such as the production of biochars, biofuels, pulp for paper sheets, particle board and lignin [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale

et al. 2020

View full text Add to dashboard Cite

Wine production generates large amounts of vine-canes, a devalued by-product that could be used for the recovery of bioactive compounds. In this work, two vine-canes varieties, namely Touriga Nacional (TN) and Tinta Roriz (TR), were submitted to different ultrasound-assisted extraction (UAE) conditions. The highest phenolic and flavonoid content was observed for TR extract obtained at lab-scale without an ice bath and pilot-scale after 60 min of extraction (32.6 ± 2.1 and 26.0 ± 1.5 mg gallic acid equivalent/g dry weight (dw) and 9.5 ± 0.6 and 8.3 ± 0.8 mg epicatechin equivalents/g dw, respectively). Further, all extracts demonstrated a high antioxidant activity to scavenge DPPH free radicals with the best value reached by TR at the lab-scale without an ice bath after 30 min and pilot-scale extraction after 60 min (34.2 ± 2.4 and 33.4 ± 2.1 mg trolox equivalents/g dw, respectively). Extracts phenolic composition were also evaluated by HPLC, demonstrating that resveratrol, myricetin and catechin were the main compounds. According to our knowledge, this is the first time that a pilot scale of UAE of phenolic compounds from vine-canes was performed. This paper represents an important step to the use of UAE as an industrial process to recover bioactive compounds.

show abstract

Section: Introductionmentioning

confidence: 99%

Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Depending on the vine varieties, around 1.75 tons of vine-cane wastes are produced for each hectare of vineyard. After harvesting season, many agricultural byproducts, including vine-canes, are usually incorporated in the soil, enhancing the soil health due to the degradation of organic matter and reducing the necessities of organic fertilizers and/or correctives [ 17 ]. Following the need to find a better end for vine-canes, different approaches were already explored, such as the biochar production, biofuels, pulp for paper sheets and particle board [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Extraction Temperature Influence on Polyphenolic Profiles of Vine-Canes (Vitis vinifera) Subcritical Water Extracts

Dorosh

Moreira

Pinto

et al. 2020

Foods

View full text Add to dashboard Cite

This work focused on evaluating the possibility of using vineyard pruning wastes from two Portuguese Vitis vinifera varieties; Touriga Nacional (TN) and Tinta Roriz (TR), as new potential ingredients for the nutraceutical industry. An environmentally friendly extraction technique; namely subcritical-water extraction (SWE), was employed. The overall results indicate that phenolic acids were the major class of compounds quantified; being gallic acid the principal one. The highest value for total phenolic content (TPC) was obtained for the TR extract at 250 °C (181 ± 12 mg GAE/g dw). In terms of antioxidant activity; the DPPH values for the extracts obtained at 250 °C were approximately 4-fold higher than the ones obtained at 125 °C; with TR extract presenting the highest value (203 ± 22 mg TE/g dw). Thus, the TR extract obtained through SWE at 250 °C was selected to evaluate the scavenging activity and the in vitro effects on cells due to the best results achieved in the previous assays. This extract presented the ability to scavenge reactive oxygen species (O2●-, HOCl and ROO●). No adverse effects were observed in HFF-1 viability after exposure to extract concentrations below 100 μg/mL. This work demonstrated that vine-canes extracts could be a potential ingredient to nutraceutical industry

show abstract

“…Vine-shoots are traditionally left in the vineyard, sometimes used as organic fertilizer or as substrates for the mushroom industry . Recent research applications are related as a source for obtaining activated carbons for the wine industry, as a food additive, or even for the production of paper pulp .…”

Section: Introductionmentioning

confidence: 99%

Vine-Shoot Waste Aqueous Extracts for Re-use in Agriculture Obtained by Different Extraction Techniques: Phenolic, Volatile, and Mineral Compounds

Sánchez‐Gómez

Zalacaín

Alonso

et al. 2014

J. Agric. Food Chem.

View full text Add to dashboard Cite

Vine-shoots are an important waste in all viticulture areas that should be re-used with innovative applications. The aim of this work was to produce Airén waste vine-shoot aqueous extracts by four solid-liquid extraction techniques such as conventional solid-liquid extraction (CSLE), solid-liquid dynamic extraction (SLDE-Naviglio), microwave extraction (ME), and pressurized solvent extraction (PSE). Their chemical composition was studied in terms of phenolic, volatile, and mineral compounds. The highest concentrated extracts corresponded to CSLE and SLDE-Naviglio, independent of the conditions tested. The CSLE extracts had the highest flavanols, phenolic acids, and stilbenes contents. The volatile composition, quantified for first time in this work, shows that furanic compounds were the most abundant. All extracts showed an interesting mineral content, which may be assimilated by plants. These results show the agricultural potential of Airén vine-shoot waste aqueous extracts to be used as grape biostimulants and/or foliar fertilizer.

show abstract

Distribution of nutrients in anaerobic digestion of vine shoots

Cited by 11 publications

References 2 publications

Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale

Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale

Evaluation of the Extraction Temperature Influence on Polyphenolic Profiles of Vine-Canes (Vitis vinifera) Subcritical Water Extracts

Vine-Shoot Waste Aqueous Extracts for Re-use in Agriculture Obtained by Different Extraction Techniques: Phenolic, Volatile, and Mineral Compounds

Contact Info

Product

Resources

About