Effects of different concentrations of a white grape marc extract on broiler performance, apparent ileal digestibility, antioxidant capacity, intestinal barrier function and nutrient transport markers.

The current study evaluated the effect of a white grape marc extract (GME) on growth performance, gut health, and intestinal function in broiler chickens at different dosages to determine a dose-related efficacy of the extract without inducing any adverse effects. Four hundred male broiler chickens received a basal diet without (CON) or with the GME at different levels, based on its polyphenolic concentration: 200 (LPP), 750 (MPP), and 1,500 (HPP) mg/kg, respectively. Growth performance parameters were recorded during the whole trial.

In vivo tracking of grape marc biomarkers, bioconversion, metabolic tracers, and microbiota modulation in swine fed a polyphenol-rich extract diet.

This work evaluated the addition of the polyphenol-rich bioactive extract "e-Vitis", derived from grape marc (the main by-product of the wine industry), into swine feed. This was performed with the aim of testing the in vivo bioavailability of functional compounds, mainly phenolics, through the digestive system and excreta, together with the detection of bioconversion products associated with gut microbiota improvements. Additionally, the palatability of e-Vitis feed was evaluated, as well as the absence of metabolites that could compromise its innocuity.

Phytochemical and antioxidant comparison of and acorn extracts obtained by matrix solid-phase dispersion.

Oak ( spp.) acorns are used in animal feed and in the treatment of specific diseases due to their nutritional value and high content of bioactive compounds. The aim of the present work is to investigate and compare polyphenolic compounds and the antioxidant activity of and acorn extracts.

Assessing the effect of gastrointestinal conditions and solubility on the bioaccessibility of polyphenolic compounds from a white grape marc extract.

This study investigates the bioaccessibility of phenolic compounds from a Vitis vinifera marc extract using an in vitro gastrointestinal model. Both undiluted and five-fold diluted extracts were digested to assess how solubility and gastrointestinal conditions impact polyphenol bioaccessibility. The extract was obtained using the environmentally friendly Medium Scale Ambient Temperature (MSAT) system.

The generally recognized as safe (GRAS) microalgae (wet) as a multifunctional additive for coloring and improving the organoleptic and functional properties of foods.

This work proposes the application of astaxanthin-rich wet paste (HPW) as a partial substitute for wheat flour in the preparation of filloas, a dish that combines the basic ingredients of industrial bakery. The nutritional and color profile of HPW-enriched samples was evaluated by comparative analysis with a mixture of synthetic food dyes. The highest content of carotenoids (798 ± 12 μg g) and fatty acids (76 ± 2 mg g) was obtained for a filloa fortified with in contrast to a non-significant dye response.

Bioprospecting of Targeted Phenolic Compounds of , , , and from the Adriatic Sea Extracted by Two Green Methods.

The content of bioactive compounds in four brown and one red algae from the Adriatic Sea (, , and ) is explored. The efficiency of two different extraction methods viz. ultrasound-assisted extraction (UAE) and matrix solid-phase dispersion (MSPD) to obtain the extracts rich in phenolic compounds was compared.

Phytochemical Analysis and Antiproliferative Activity of Planch. (Fabaceae), a Medicinal Plant from Galicia (Spain).

The genus comprises thirteen accepted species of perennial shrubs in the family Fabaceae. In Galicia (Spain) many of these are considered spontaneous colonizing species, which are easy to establish and maintain. Among them, Planch.

Identification and Quantification of Polyphenols in Croatian Traditional Apple Varieties.

Apples and apple-based products are particularly interesting due to being a good source of polyphenols in an everyday diet. Recently there has been increased interest in the preservation of traditional apple varieties due to studies that suggest that traditional apple varieties have a higher content of polyphenols and antioxidant activity compared to commercial varieties. This study shows that traditional apple varieties contain higher concentration of polyphenolic compounds than conventional ones, such as chlorogenic acid (1.

The chemistry behind the body art: unveiling the elemental profile and heavy metal content of natural tattoos and dyes by ICP-MS.

Temporary tattoos and dyes are increasing popularity as an alternative to permanent ones. However, knowledge on its elementary composition is scarce and, this scientific gap can potentially make them a source of heavy metal exposure on humans. The present research aimed to explore the possibility of using the inorganic chemical signature to characterize natural pigments-based products and to evaluate the heavy metal content in jagua temporary tattoos and henna temporary hair dyes and tattoos.

Optimization of bioactives extraction from grape marc via a medium scale ambient temperature system and stability study.

A scalable procedure with minimum energy requirements, MSAT (Medium Scale Ambient Temperature), in combination with solvents generally recognized as safe (GRAS), has been optimized to obtain polyphenolic extracts from white grape () marc. The solvents considered were propylene glycol (Pg), ethanol (Et), and ethyl lactate (Lc), as well as their respective hydro-organic mixtures. In a first approach, the operating parameters were optimized through a response surface matrix: extraction solvent volume (range 10-150 mL), marc mass (range 20-200 g) and marc/dispersant mass ratio (range 0.

Understanding the chemical and mineralogical composition of commercial henna and jagua tattoos and dyes-a multi-analytical approach.

Temporary tattoos and dyes constitute a great analytical challenge in relation to the regulatory control of their ingredients. Most of these commercial products are not labeled according to their content and their chemical nature is highly diverse. Therefore, it is necessary to analyze these complex samples to evaluate the potential presence of metallic impurities, to ensure the safety of cosmetic products contributing to health protection.

Occurrence of Patulin and Polyphenol Profile of Croatian Traditional and Conventional Apple Cultivars during Storage.

Apples and apple-based products are among the most consumed fruits around the world. However, they are susceptible to infection with the fungi . In addition to the reduction of apple quality, secondary metabolism of this fungus produces a mycotoxin patulin that has a negative effect on human health.

Antimicrobial Activity of Polyphenols and Natural Polyphenolic Extracts on Clinical Isolates.

Antibiotic resistance is a growing global problem that affects people, animals, the environment, and the economy. Many clinically relevant bacteria have become resistant to antibiotics, and this fact is emerging as one of the major threats to public health. The lack of new antibiotics, which is due to their time-consuming and costly development, exacerbates the problem.

Multicomponent Polyphenolic Extracts from at Lab and Pilot Scale. Characterization and Effectivity against Nosocomial Pathogens.

An extraction method was designed and scaled up to produce multicomponent polyphenolic extracts from blueberries () of three different varieties. The process was specifically drawn up to comply with green chemistry principles. Extracts were obtained for the direct assessment of their antimicrobial and antiadhesive activities, and their direct use in the control of infections caused by concerning multidrug-resistant nosocomial pathogens.

Recent Advances in Sample Preparation for Cosmetics and Personal Care Products Analysis.

The use of cosmetics and personal care products is increasing worldwide. Their high matrix complexity, together with the wide range of products currently marketed under different forms imply a challenge for their analysis, most of them requiring a sample pre-treatment step before analysis. Classical sample preparation methodologies involve large amounts of organic solvents as well as multiple steps resulting in large time consumption.

Multi-Target Strategy to Uncover Unexpected Compounds in Rinse-Off and Leave-On Cosmetics.

The wide range and complexity of cosmetic formulations currently available on the market poses a challenge from an analytical point of view. In addition, during cosmetics manufacture, impurities coming from raw materials or formed by reaction of different organic compounds present in the formulation may be present. Their identification is mandatory to assure product quality and consumer health.

Green Extraction Methods for Extraction of Polyphenolic Compounds from Blueberry Pomace.

In this study, green extraction methods-high voltage electrical discharges (HVED), pulsed electric field (PEF), and ultrasound-assisted extraction (UAE)-were compared in terms of extraction yield of total and individual polyphenolic compounds, as well as the antioxidant capacity of blueberry pomace extracts. All extractions were performed with methanol- and ethanol-based solvents. The highest total polyphenols content (TPC) (10.

Anti-adhesive activity of a Vaccinium corymbosum polyphenolic extract targeting intestinal colonization by Klebsiella pneumoniae.

The therapeutic effect of Vaccinium polyphenols against uropathogens has been widely studied. Most attention has focused on the antimicrobial activity against P-fimbriated Escherichia coli strains. The present study investigated the anti-adhesive and anti-biofilm activity of a saline extract of blueberry (Vaccinium corymbosum) targeting intestinal colonization by a highly adherent Klebsiella pneumoniae strain.

Matrix solid-phase dispersion as a greener alternative to obtain bioactive extracts from . Characterization by UHPLC-QToF.

So far, research on the microalga has been focused mainly on the exploitation of its high astaxanthin content, leaving aside the use of other bioactive compounds present. This study is focused on obtaining and characterizing extracts enriched in bioactive compounds from this microalga red aplanospores. This is performed by means of Matrix Solid-Phase Dispersion (MSPD) extraction process, in an environmentally friendly way with low energy consumption and GRAS solvents.

Unraveling the environmental impacts of bioactive compounds and organic amendment from grape marc.

In a society that produces large amounts of solid waste, the search for new methods of valorisation has led to the development of techniques that make it possible to obtain new products from waste. In the case of bio-waste, biological treatment such as anaerobic digestion or composting appear to be suitable options for producing bio-energy or bio-fertilizers respectively. Vermicomposting is a method of converting solid organic waste into resources through bio-oxidation and stabilization of the organic waste by earthworms.

Peel of Traditional Apple Varieties as a Great Source of Bioactive Compounds: Extraction by Micro-Matrix Solid-Phase Dispersion.

Micro matrix solid phase dispersion (micro-MSPD) was optimized by response surface methodology for the extraction of polyphenols from the peel of twelve traditional and eight commercial apple varieties grown in Croatia. The optimized micro-MSPD procedure includes the use of 0.2 g of sample, 0.

Exploring the powerful phytoarsenal of white grape marc against bacteria and parasites causing significant diseases.

Natural extracts containing high polyphenolic concentration possess antibacterial, anti-parasitic and fungicidal activities. The present research characterises two extracts based on white grape marc, a winemaking by-product, describing their physicochemical features and antimicrobial capacities. The main components of these extracts are phenolic acids, flavan-3-ols and their gallates and flavonols and their glycosides.

Body-decorating products: Ingredients of permanent and temporary tattoos from analytical and european regulatory perspectives.

This review summarizes the current regulatory status of tattoos in all their versions in the European Union framework, as well as the analytical approaches developed so far to control the safety of this type of products. Publications from the last two decades (2000-2019) have been reviewed in which body-decorating products have become more and more popular. Tattoo inks, permanent make-up, sticker tattoos, and henna-based products are covered.

Antioxidants Profiling of By-Products from Eucalyptus Greenboards Manufacture.

Three different by-products from the wood industry have been exhaustively characterized to find compounds with antioxidant properties. The industrial process to manufacture greenboards is distinguished by using just wood and water, which converts the generated by-products in a highly attractive source of bioactive compounds that are originally in the raw material. The studied by-products were: the screw water, derived from the washing of the wood chips; the condensates, obtained after the evaporation and further condensation of the screw water; and finally, the concentrate of eucalyptus.