Assessment of the production of antioxidants from winemaking waste solids

Journal of Agricultural and Food Chemistry
J M CruzJuan Carlos Parajó

Abstract

Winemaking waste solids (WS, resulting from red grapes after fermentation and distillation to recover spirits) were subjected to various processing schemes for isolating fractions with antioxidant activity. The liquors entrapped in WS as received were separated by pressing and freeze-dried to yield a fraction with antioxidant activity (measured as DPPH radical scavenging capacity) comparable to those of synthetic antioxidants. A second approach based on the direct processing of raw WS in sulfuric acid medium under fixed operational conditions and further extraction of hydrolysis liquors with ethyl acetate enabled the isolation of a fraction with higher antioxidant ability at an improved yield. The most favorable approach started with a washing stage leading to liquors (which were directly freeze-dried to yield 1.20 g of extract/100 g of oven-dry WS and presented an EC50 of 0.41 g of extract/L) and washed solids, which were dried and subjected to hydrolytic processing (i) with water as a reactive in an autocatalyzed reaction (autohydrolysis) or (ii) with sulfuric acid solutions to give an ethyl acetate-soluble fraction with improved antioxidant properties (EC50 in the range of 0.18-0.40 g/L). Samples from washing liquors and pro...Continue Reading

References

Aug 24, 2000·Journal of Agricultural and Food Chemistry·L R Fukumoto, G Mazza
Feb 15, 2001·Journal of Agricultural and Food Chemistry·T NiwaT Osawa
Apr 21, 2001·Journal of Agricultural and Food Chemistry·D F FitzpatrickR M O'Malley
Nov 21, 2001·Journal of Agricultural and Food Chemistry·W Zheng, S Y Wang
Mar 21, 2002·Journal of Agricultural and Food Chemistry·Hiroe KikuzakiHisaji Taniguchi
Aug 21, 2003·Journal of Agricultural and Food Chemistry·Eduardo Pastrana-BonillaGerard Krewer

❮ Previous
Next ❯

Citations

Jul 13, 2007·Applied Biochemistry and Biotechnology·Ana B MoldesMaría T Barral
Sep 6, 2014·International Journal of Molecular Sciences·Ana TeixeiraCristina Garcia-Viguera
Jan 1, 2013·Journal of Environmental Management·Remigio ParadeloMaría Teresa Barral
Mar 30, 2007·Bioresource Technology·M Sánchez GuerreroMaría José Nuñez
Dec 10, 2008·Molecular Nutrition & Food Research·Ryszard AmarowiczMariusz K Piskula
Jun 19, 2012·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Jing J WangBarbara J S Sanderson
Sep 18, 2012·International Journal of Biological Macromolecules·Paola PersicoPierfrancesco Cerruti
Mar 13, 2012·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·María Luisa SotoJuan Carlos Parajó
Dec 27, 2017·Biotechnology Journal·Ruchanok TinikulPimchai Chaiyen
Oct 2, 2019·Food Science & Nutrition·José M Pérez-OrtizCarmen González-Martín
Mar 7, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Marie BlackfordBenoit Bach
Oct 31, 2008·Journal of Agricultural and Food Chemistry·Enma CondeJuan Carlos Parajó
Jun 4, 2014·Journal of Agricultural and Food Chemistry·Sónia O ProzilLuísa P C Lopes
Nov 17, 2007·Journal of Agricultural and Food Chemistry·Mónica RubilarMaría José Nuñez

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.