AbstractA review of vibrational frequencies reported for tannin molecules is provided to create a database with typical fingerprints different types tannins. This will provide researchers working on spectroscopy applications and technicians fast, easy, reliable method assess the quality authenticity these compounds, both extracted in laboratories from commercial sources. The widespread use compounds has highlighted need systematic characterization molecular their identification...

The wine business relies heavily on quality certification. excellence of New Zealand Pinot noir wines is well-known worldwide. Our major goal in this research to predict by generating synthetic data and construct a machine learning model based available experimental collected from different diverse regions across Zealand. We utilised 18 samples with 54 characteristics (7 physiochemical 47 chemical features). generated 1381 12 original using the SMOTE method, six were preserved for testing....

Valorization of agricultural waste has become increasingly important. Wastes generated by wineries are high in phenolic compounds with antioxidant and antibacterial properties, which contribute to phytotoxicity, making their immediate use for means limited. Utilizing a water-based extraction method, the from winery were extracted purified. The resulting extract was characterized composition using high-pressure liquid chromatography-ultraviolet/visible electrochemical detectors (HPLC-UV/Vis,...

Although commercial tannins are widely used in foods and beverages, an improved understanding of the structure composition vegetable is needed to promote exploitation agri-food by-products waste their valorisation more sustainable industrial applications. This study aims characterise phytochemical antioxidant activity 13 food grade using multiple analytical approaches, including spectrophotometry HPLC-ECD determine amount targeted polyphenolic compounds. Moreover, was assessed terms radical...

Background and Aims White wines are typically low in phenolic substances antioxidant activity, both of which can be increased by maceration with extended skin contact. This study employed five techniques to assess the increase activity Sauvignon Blanc wine. Methods Results Wines were assessed for concentration a newly developed HPLC method utilising ultraviolet-visible electrochemical detectors. A significant was observed some treatments, particularly semi-carbonic (CM)...

Attenuated total reflection Fourier transform infrared (FT-IR) spectroscopy was used to characterize 40 commercial tannins, including condensed and hydrolyzable chemical classes, provided as powder extracts from suppliers. Spectral data were processed detect typical molecular vibrations of tannins bearing different groups varying botanical origin (univariate qualitative analysis). The mid-infrared region between 4000 520 cm −1 analyzed, with a particular emphasis on the vibrational modes in...

Background and Aims Whole bunch fermentation is widely used in red wine production but research on whole limited, especially for cool climate Pinot Noir. Inclusion of bunches or grape stems was investigated Noir with respect to extraction phenolic compounds aroma production. Methods Results Five wines were microvinified by including at various levels: destemmed grapes (DS), 100% added back (DS100), 30% (WB30), 60% (WB60) (WB100). The DS100, WB60 WB100 treatments showed significantly...

Abstract Studies with secretory cavity contents and air-dried inflorescence extracts of the CBD-rich hemp strain, Cannabis sativa cv. ‘Cherry Wine’, were conducted to compare decarboxylation rates acidic cannabinoids between two groups. The acquired from capitate-stalked glandular trichomes by glass microcapillaries, samples for 15 days storage in darkness at room temperature analysed high-pressure liquid chromatography. ratio total was ranging 0.5% 2.4% lower compared as follows. In...

Higher levels of the varietal thiols 3-mercaptohexanol (3MH) and 3-mercaptohexyl acetate (3MHA) were seen in research-scale Sauvignon blanc wines following applications 100 mg/kg ascorbic acid or glutathione to machine-harvested juices addition a moderate 30 sulfur dioxide. Antioxidant effects at beginning yeast fermentation implicated, which can support 3MH formation when oxidative influences are controlled, as monitored through changes polyphenol content. An increase...

A natural antioxidant derived from an agro-waste of the wine industry, grape tannin, was incorporated by melt blending into three different polyolefins (high-density polyethylene, linear low-density polyethylene and polypropylene) to introduce functionality.Significant activity observed at 1% tannin inclusion in all polymer blends. The increase steadily with a greater concentration tannins, highest increases being seen polypropylene. mechanical thermal properties films following...

Soil microbes play a vital role in promoting plant growth and health through various mechanisms, including nutrient availability, microbial competition inhibition, defense. However, their interaction effects cannabis cultivation remains largely unexplored. In this study, we investigated the symbiotic of soil bacteria on by characterizing communities from samples collected Salado-Ibague (S) Mariquita (M) regions central west Colombia. Among 265 microorganisms detected, selected 21 g-positive...

The serotonin (5-hydroxytryptamine_1A) 5-HT_1A receptor agonist 8-OH-DPAT [(<i>R</i>)- (+)-8-hydroxy-2-(di-<i>n</i>-propylamino)tetralin] inhibits bladder activity under nociceptive but not innocuous conditions in cats with an intact spinal cord, suggestive of effect on primary afferent C fibers or their targets. Because play a key role reflex micturition chronic cord injury (SCI), we investigated the SCI cats. We also GR-46611...

Cross-pollination of commercial crops has been an ongoing issue in many species.

Abstract Cannabinoid decarboxylation via thermo-chemical conversion has the potential to reduce cannabinoid degradation and evaporation due short reaction time use of water as solvent. When combined with pressurized liquid extraction (PLE), can be performed first stage in procedure. PLE utilizes a closed system at elevated temperatures pressure increase solvation power, which contributes decreased viscosity increased diffusion rate. With this new in-extraction approach there remain variables...

Abstract Background Cannabinoids are increasingly becoming compounds of medical interest. However, cannabis plants only produce carboxylated cannabinoids. In order to access the purported benefits these compounds, carboxylic acid moiety must be removed. This process is typically performed by heating plant material or extract; however, cannabinoids being thermolabile can readily degrade, evaporate, convert undesired metabolites. Pressurized liquid extraction (PLE) operates using a...

Summary Pinot noir wines were made with inclusion of different amount whole bunches or grape stems: destemmed grapes only (DS), 30% bunch (WB30), 60% (WB60), 100% (WB100), and stems added back (DS100). Wines analysed using modified Somers assay CIELab method at the end fermentation after a 2 years bottle ageing. analysis showed that DS100 was significantly from all other treatments both sampling points, addition (except WB30) significant colour difference compared to DS treatment Total...

Complex matrices, such as wine, provide a challenge in the quantification of compounds. There exists high likelihood co-elution these thereby artificially increasing observed concentration. This can often lead to confusing data where compounds are above aroma detection thresholds, but not detected by olfactory analysis. Additionally, lack sensitivity assays non-detection sub-aroma threshold concentrations and contrasting when analysis detects aromas. To eliminate pitfalls gain better...

Grape (Vitis vinifera L.) marc has long been utilized as a compost feedstock. However, this process takes an extended period of time due to the phytotoxic chemical composition marc. Removal these compounds presents opportunity utilize grape growing medium. Following water-based extraction procedure remove polyphenolic interest, analysis depleted showed decrease in content compounds, and nutrient trace element levels. Carrot (Daucus carota corn (Zea mays seedling emergence blends with were...

Energy supplementation may reduce oxidative stress by correcting a negative energy balance, but in some contexts, it has been shown to increase stress, especially at peak lactation. The current experiment examined if pelleted supplement with or without the addition of Lactobacillus-fermented seaweed plus terrestrial plants extracts affected ewes from late gestation through weaning and ewe lamb production lambing weaning. Treatments were either no (CON-), only (CON+, 100 g/ewe per d), CON+...