Amount Of Phenolic Compounds Research Articles

Quality Characteristics of Purslane (Portulaca oleracea L.) Leaf and Stem Powder-Supplemented Cupcakes

The current research focused on improving the nutritional quality of cupcakes by using micronutrient-rich vegetables, specifically purslane’s leaves and stems. The purslane leaves and stems were sun-dried and analyzed for their proximate, mineral, and antioxidant potential. After conducting preliminary trials, flour blends supplemented with purslane powders ranging from 2 to 4% were evaluated for their rheological behavior and suitability in bakery cupcakes. The results indicated that purslane leaves and stems are a rich source of crude proteins (18.04 ± 0.61 and 15.62 ± 1.63%, respectively) and mineral contents, especially iron contents (214.28 ± 123.13 and 243.37 ± 5.25 mg/100 g, respectively). The powder retained a significant quantity of phenolic compounds and antioxidant potential after sun-drying. The rheological evaluation indicated the dose-dependent incremental response on dough development and dough stability time. Although cupcakes prepared with purslane leaves and stem powder received lower ratings than the control, statistically, the cupcakes supplemented with 2 to 4% purslane powder were on par with each other. In conclusion, purslane leaves and stems are a rich source of micronutrients and their incorporation in bakery products can improve the consumer’s micronutrient intake.

Green catalyst for clean fuel production via hydrodeoxygenation.

The development of new fuel sources to replace nonrenewable fossil fuels has received substantial attention due to the ongoing demand for fossil fuels. Biomass and raw waste materials are crucial sources to produce suitable alternative fuels instead of nonrenewable fuels and offer a greener approach. Therefore, improving the fuel properties of biooils produced from the thermochemical conversion of biomass and raw waste materials is critical as it is used as an alternative to nonrenewable fuel. Developing an economical and eco-friendly method to produce sustainable and renewable oil by improving biooil containing large amounts of phenolic compounds has become imperative. One of the most intriguing and promising technologies for refining biooil to produce renewable fuels of comparable quality to conventional fossil fuels is the hydrodeoxygenation (HDO)-based process for converting biooil to renewable fuels. This method is almost one of the best improving methods described in the literature. At this point, it is of great importance that the HDO process is carried out catalytically. Carbon materials are preferred for both designing catalysts for HDO and supporting metal nanoparticles by providing chemically inert surfaces and tunable functional groups, high surface area and active sites. The HDO of biomass and raw waste materials has significantly advanced thanks to carbon-based catalysts. In this review, the effect of the surface character and catalytic ability of the carbon support, especially prepared by the green synthesis technique, on the HDO reaction during biooil improvement is discussed. Moreover, HDO reaction parameters and recent studies have been investigated in depth. Thus, green carbon catalysts' role in clean fuel production via the HDO process has been clarified.

Evaluation of Pomological Characteristics and Bioactive Compounds of Wild Sea Buckthorn (Hippophae Rhamnoides L.) and Hawthorn (Crataegus songarica) from Walnut-Fruit Forest Kyzyl-Unkur, Kyrgyzstan

There are different berries and fruits naturally growing in the walnut-fruit forests of Kyrgyzstan, however, their composition and bioactive compounds have not been studied. This study aims to contribute to the limited literature on dietary fibres, ash, bioactive compounds such as vitamin C, polyphenols, antioxidant activity, and physical parameters of wild sea buckthorn (Hippophae rhamnoides L.) and hawthorn (Crataegus songarica) from walnut-fruit forests of Kyrgyzstan. The standard food analysis techniques and DPPH assay were used to determine the nutritional composition and antioxidant activity of the samples, respectively. The total amount of polyphenols in the extracts was determined by the Folin-Ciocalteau micro method. The content of vitamin C in fresh sea buckthorn was higher than in hawthorn, but hawthorn has advantages in terms of the amount of phenolic compounds and antioxidant activity. Both studied species have high nutritional values and are recommended to be used in the diet to improve the food security of the local population.

MORPHOANATOMICAL RESPONSES OF CLONAL COCOA GENOTYPES TO SOIL FLOODING

The effects of soil flooding on the anatomy of seven T. cacao clones (CP-49, CCN-10, PH-16, CP-06, CEPEC-2007, CEPEC-2008 and PS-1319), obtained by rooting medium of stem cuttings, aiming to elucidate the possible mechanisms of tolerance to anoxia, to subsidize the cultivation of these clones in hydromorphic soils or with drainage problems. The experiment was carried out under greenhouse conditions at UESC, Ilhéus, BA. The plants were submitted to two water regimes (with and without flooding) for a period of 45 days. The formation of lenticels at the base of the stem, at eight days of flooding, was a striking feature in the survival process of clonal genotypes. The clones from the flooded treatment showed more starch in relation to the control treatment. There was an enlargement of the intercellular spaces in the different organs of most of the plants of the evaluated clonal genotypes. Aerenchyma formation was noted in clones CP-49, CCN-10, PH-16, CP-06 and PS-1319. The non-flooded CP-49 clone presented a higher amount of phenolic compounds, while in the other clonal genotypes these compounds were present in greater amounts in the flooded treatment. The development of a greater amount of adventitious roots in the plants of clones CP-49 and CCN-10 demonstrated greater morphoanatomical plasticity of these clones in relation to the others, which had these alterations less pronounced and were more sensitive to substrate flooding. The plants of the clonal genotypes CEPEC-2008 and PS-1319 showed lower foliar plasticity in response to soil flooding, in relation to the other clones evaluated. Clones CCN-10 and CP-49 were the most tolerant to soil flooding, while clones CP-06 and CEPEC-2007 were considered moderately tolerant and clones CEPEC-2008 and PS-1319 were considered non-tolerant. Therefore, clones CCN-10 and CP-49 have the potential to be cultivated in hydromorphic soils or with drainage problems.

Comprehensive Analysis of Phenolic Compounds, Carotenoids, and Antioxidant Activities in Lactuca sativa var. longifolia Cultivated in a Smart Farm System

Smart farming is a promising strategy for future agriculture, and the global market for smart agriculture is growing rapidly. The aim of this study was to compare the quality of agricultural products based on their cultivation method. The components and antioxidant activities of Lactuca sativa (LS) var. longifolia cultivated using conventional agriculture methods (CAMs) and smart farm agriculture methods (SAMs) were compared. ABTS+ and DPPH radical scavenging activity assays were performed to compare the antioxidant activities of LS grown using CAMs and SAMs. High-performance liquid chromatography with a reverse-phase column was employed to analyze the phenolic and carotenoid compounds. In both the SAM and the CAM, β-carotene was found to be the most abundant compound. LS grown using the CAM had high total polyphenol content and ABTS+ radical scavenging activity, while LS grown using the SAM had high individual phenolic content and DPPH radical scavenging activity. This study developed a new method of SAM and confirmed that SAM produces a higher quantity of phenolic compounds and total flavonoid contents than CAM in LS. This study also highlights the SAM’s functioning, gives crop quality inspection guidelines, and standardizes LS. The new SAM is effective for application in undeveloped urban spaces, is more convenient than the CAM, and represents a way to develop and manage LS quality.

Development of a green ultrasound-assisted procedure for the extraction of phenolic compounds from avocado peel with deep eutectic solvents

Avocado (Persea americana Mill.) is a tropical fruit grown in different areas of the world. Avocado pulp is of interest to food companies while seed and peel are wasted. In 2021, about 25 thousand tons of avocado peel were produced as waste. In accordance with circular economy and green chemistry principles, avocado peel could be considered a source of bioactive molecules, specifically phenolic compounds, to be recovered using green methods. Deep eutectic solvents (DESs) are green solvents whose extractive efficiency for phenolic compounds from food and waste products of the agri-food chain has already been demonstrated. In this work, an ultrasound-assisted solid-liquid extraction, using DESs, was developed to recover phenolic compounds from avocado (Hass variety) peel. For this purpose, twelve DESs were tested as extraction solvents considering the provided total phenolic content. Then, in order to obtain the largest amount of phenolic compounds, the most relevant factors affecting solid-liquid extraction were evaluated. Matrix-to-solvent ratio of 1:30 (w/v), 25°C and 15 min as temperature and time of extraction, respectively, were found as optimal conditions to guarantee an extracted amount of phenolic compounds of 8.29 ± 0.07 g GAE/100g of dry avocado peel. Through high-performance liquid chromatography coupled with photodiode array and mass spectrometry detection, some flavonoids and phenolic acids were identified in the avocado peel extract.

Degradation of the lignin in roasted sesame seed hull improves the oxidation stability of sesame oil

Sesame seed hulls are rich in lignin. Sesame oil extracted from roasted sesame seeds has a high oxidation stability. To investigate the influence of roasting on lignin and the oxidation stability of sesame oil, the degradation products (L190, L220, and L250) and solid residues were obtained from sesame seed hull lignin heated at three temperatures (190 °C, 220 °C, and 250 °C). The results showed that roasting caused partial degradation of lignin. The degree of lignin degradation became more severe with increasing roasting temperature. This degradation leads to the production of low-molecular-weight phenolic compounds, such as vanillin and 1-(4-hydroxy-3-methoxyphenyl)butan-1-one. As the roasting temperature increased, the kinds and amounts of phenolic compounds produced increased. These compounds were high in antioxidants, the increasing of roasting temperature correlated significantly with the decrease in peroxide value (rPOV = −0.977, p < 0.05) and p-anisidine value (rp-AnV = −0.988, p < 0.05) of sesame oils with added products of lignin degradation. The products of lignin degradation inhibited sesame oil oxidation, with L250 showing the strongest ability to improve the oxidative stability of sesame oil, similar to sesamol. This study demonstrated that the thermal degradation of lignin during roasting of sesame seed hulls enhanced the oxidative stability of sesame oil.

DEVELOPMENT OF CACAO VARIETY IDENTIFICATION METHOD USING COMBINATION OF FTIR SPEKTROSCOPY AND MULTIVARIATE ANALYSIS

Abstract&#x0D; Indonesia is the third largest cocoa producing country after Ivory Coast and Ghana. Indonesian cocoa agribusiness still faces obstacles, among others, the low quality of cocoa beans caused by different types of cocoa plant varieties. The amount of phenolic compounds in cocoa depends on the variety. There are 3 variety of cocoa plants, namely Criollo (fine flavoured cocoa) Forestero (bulk cocoa) and Trinitario (Criollo and Forestero hybrids). This study aims to identify cocoa varieties quickly and efficiently to control the quality of cocoa bean production. The method used in this study is a combination of Fourier Transform Infrared (FTIR) Spectroscopy Method and Multivariate Analysis Method. The combination of these two methods has been widely developed for the identification and authentication of types of plants that have similar or close ties. Based on the results of FTIR (Fourier Transform Infrared) analysis at a wave number of 4000-400 cm-1 to 15 samples of cocoa beans, a spectrum that is multicomponent and relatively the same is obtained. The spectrum data is processed by the multivariate analysis method, Principle Component Analysis (PCA) and obtained that the 3 variety of cocoa can be clearly distinguished where the value of the main components (PC-1 and PC-2) is 92.03%.

OXIDATION METHODS FOR PHENOLE-CONTAINING WASTEWATER TREATMENT

One of the most complex environmental problems generated by the development of human economic activity is the problem of the negative impact of chemically polluted territories on the objects of the hydrosphere. A lot of toxic compounds, getting into water reservoirs, cause the water area deterioration, the death of their flora and fauna, make the water unusable either for drinking nor for cultural and household needs. Recently, the attention of specialists has been attracted by a group of persistent organic pollutants. All these substances belong to the class of organochlorine pollutants, as well as by-products of hydrocarbon production (for example: dioxins, furans, formaldehydes, phenols). These substances are resistant to decomposition and toxic. Among the most dangerous water pollutants, along with heavy metal ions, petroleum products, surfactants and polyaromatic compounds, are phenol and its derivatives. Phenol-containing wastewater is generated at enterprises of the pulp and paper, woodworking, food industries, leather, chemical, coke, petrochemical industries, etc. When even a small amount of phenolic compounds gets into a water body, the reservoir self-cleaning capacity decreases. In this regard, the problem of an objective assessment of hydrosphere pollution by phenols and its derivatives and the search for new effective methods of wastewater treatment are urgent tasks. The paper describes oxidation methods for wastewater treatment from phenol.

Bioefficacy of Sida cordifolia L. phytoextract against foodborne bacteria: optimization and bioactive compound analysis.

Aim: To elucidate the antibacterial activity of Sida cordifolia L. phytoextract, evaluate itspolyphenol profile and optimize conditions against certain common foodborne bacteria. Methods: After polarity-based sequential extraction, S. cordifolia phytoextracts were tested for antibacterial potential against antibiotic-resistant bacteria. Box-Behnken design wasused to optimize several process parameters and ultra-performance liquid chromatographyconfirmed the phenolic composition of the best possible outcome. Results: Agar well diffusion and MIC/MBC assay confirmed a strong bactericidal effect of ethanolic (SC04-ET) extract against ampicillin and colistin-resistant Escherichia coli, Listeriamonocytogenes and Staphylococcus aureus. The direct interactive effect of optimized conditions showed maximum antibacterial performance and ultra-performance liquid chromatography revealed ahigh amount of phenolic compounds. Conclusion: The results confirmed that ethanolic extract of S.cordifolia has potent bactericidal action against foodborne bacteria.

Characterization of the Effect of a Novel Production Technique for 'Not from Concentrate' Pear and Apple Juices on the Composition of Phenolic Compounds.

The consumption of 'not-from-concentrate' (NFC) fruit juices can be a convenient and enjoyable way to incorporate the nutritional benefits and flavors of fruits into one's diet. This study will focus on the effect of production of juices from apple and pear fruits, by using centrifugal decanter and tangential filtration, on the profile of polyphenols as a valuable source of bioactive compounds. Likewise, by-products from the juice industry were characterized in order to understand the high-value-added potential based on their composition of polyphenols. Briefly, apple and apple juice showed great contents of chlorogenic acid (0.990 ± 0.021 mg/g of DW), the dihydrochalcone phloridzin (1.041 ± 0.062 mg/g of DW), procyanidins (0.733 ± 0.121 mg/g of DW) and quercetin derivatives (1.501 ± 0.192 mg/g of DW). Likewise, the most abundant compounds in pear and pear juices were chlorogenic acid (0.917 ± 0.021 mg/g of DW), caffeoylquinic acid (0.180 ± 0.029 mg/g of DW), procyanidins (0.255 ± 0.016 mg/g of DW) and quercetin derivatives (0.181 ± 0.004 mg/g of DW). Both temperature and tangential speed affect the amount of phenolic compounds in fruit juices, highlighting the need to control the technological process to obtain a more nutritious/healthier beverage. Overall, NFC juices arise as a better option when compared with concentrated juices. Furthermore, the higher yield of phenolic compounds found in fruit pomace clearly open new ways for upcycling this fruit by-product as a high-value-added ingredient.

Quality preservation and decay reduction of minimally processed seedless barberry fruit via postharvest ultrasonic treatment.

Seedless barberry fruit is one of the important horticultural products of Iran, which has health benefits due to great amounts of phenolic compounds, flavonoids, and antioxidant activity. However, fresh barberry fruit has a short shelf life even at cold storage, mainly due to high water content and thin skin that leads to fungal decay and high postharvest loss. We examined the effectiveness of the postharvest ultrasonic technology on the quality preservation and nutritional value of fresh seedless barberry fruit and their decay reduction during cold storage. Experimental treatments were the time and temperature of ultrasound (US) and included: (1) control, fruit without US, (2) 5 min US at 20°C, (3) 5 min US at 30°C, (4) 5 min US at 40°C, (5) 10 min US at 20°C, (6) 10 min US at 30°C, (7) 10 min US at 40°C, (8) 15 min US at 20°C, (9) 15 min US at 30°C, and (10) 15 min US at 40°C. After applying the treatments, the fruits were sealed in polyethylene bags and stored at 4 ± 1°C for 20 days. The results showed that all US treatments had higher titratable acidity, antioxidant activity, phenol content, and vitamin C content than the control. However, the highest titratable acidity and antioxidant activity values were obtained in US treatments at 40°C and 30°C for 15 min. Also, US treatment significantly reduced the total soluble solids, decay percentage, and microbial load of fresh barberry fruit. As the US treatment temperature increased from 20°C to 40°C, the decay and microbial load of fruit significantly decreased. In conclusion, this study proved the potential application of the US for preserving the quality of fresh seedless barberry fruit, and the most optimal US temperature and its application time was 40°C for 15 min.

Functional properties of Ganoderma lucidum extract: antimicrobial and antioxidant activities

This research was conducted to investigate the functional properties of Ganoderma lucidum extract. The antimicrobial activity was evaluated on some bacteria causing food spoilage like Staphylococcus aureus and Escherichia coli. Antioxidant activity was investigated by examining the effect of the extract on DPPH and ABTS free radicals, determining the amount of total phenolic compounds and flavonoids. Based on the results, the antimicrobial and antioxidant activities of the extract were increased by increasing the concentration. Staphylococcus aureus showed the highest sensitivity to Ganoderma extract with minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of 50 and 100 μg/mL, respectively. The total phenols amount was equal to 383.727 milligrams of gallic acid equivalent per gram (mg GAE/g) of the extract and the total flavonoid was equal to 28.047 milligrams of quercetin equivalents per gram (mg QE/g) of extract. The results of antioxidant activity tests showed that the concentration of 400 μg/mL had the highest scavenging activity of 85.9 and 90.12% for DPPH and ABTS free radicals, respectively. Therefore, considering the potential antioxidant activity and the rich amounts of phenolic compounds in Ganoderma extract, it can be used in the pharmaceutical and food industries instead of synthetic antioxidants and other chemical preservatives to delay lipid peroxidation and prevent the growth of food pathogens.

Microencapsulation of Sweet Potato Leaf (Ipomoea Batatas L.) Extract With Different Concentrations of Glucomannan Konjac and Maltodextrin Using Spray Drying Method

A large amount of phenolic compounds in sweet potato leaves are a potential source of antioxidants. However, polyphenol is sensitive under certain food processing, thereby needs innovation such as microencapsulation to maintain its stability. This study aimed to determine the encapsulation efficiency and characterization of microencapsulation of sweet potato leaf extract using maltodextrin (10% and 20%) combined with Konjac glucomannan (0.5%; 0.75% and 1%). The method used was spray drying using 120 oC inlet temperature. The result showed that the total phenolic compound of sweet potato leaves was 685.06 GAE mg/g extract. The antioxidant activity of sweet potato leaf extract with the DPPH method was 52.80% with an IC50 value of 26.73 ppm. The highest antioxidant activity of the microencapsulated powder sample (10% maltodextrin: 0.75% glucomannan) was 66.84% at a concentration of 100 ppm which had the greatest percent encapsulation efficiency (89.91%).The particle size distribution showed that encapsulated sweet potato leaf extract has a micro-size of around 0.296 µm (78.3%) with good homogeneity of the particle size which can be seen from the Pdi value of 0.304. Therefore, encapsulated sweet potato leaf with 0,75% glucomannan and 10% maltodextrin has the highest encapsulation efficiency and good characteristic.

Содержание биологически активных веществ в вегетативной массе очитков (Sedoideae)

Abstract. The aim of the study was to determine the content of the main groups of biologically active substances in the vegetative mass of 10 stonecrops in different phases of seasonal development. Methods. The freshly collected raw materials – vegetative shoots of the following species: Aizopsis aizoon (L.) Grulich, A. hybrida (L.) Grulich, A. kurilensis (Vorosch.) S. Gontch., Hylotelephium ewersii (Ledeb.) H. Ohba, Sedum acre L., S. album L., S. hispanicum L., S. reflexum L., S. rupestre L. and S. spurium M. Bieb. were analyzed. Generally accepted methods of phytochemical analysis were used. The dry matter content was determined by drying 1 g of raw materials to a constant weight. The amount of phenolic compounds, pectin substances and total sugars was determined in ethanol extracts spectrophotometrically, the amount of saponins – by the weight method, and their indicators were calculated for the mass of absolute dry raw materials. The concentration of ascorbic acid was determined by the titrimetric method for wet weight. Scientific novelty. The quantitative content of dry substances, catechins, flavonols, and pectic polysaccharides was studied in stonecrops for the first time. The dynamics of the content of the main groups of secondary metabolites from the flowering phase to the end of the growing season has been established. Results. It was found that the vegetative mass of stonecrops contains: dry matter – up to 19,74 %, flavonols – up to 2,38 %, tannins – up to 19,35 %, pectic polysaccharides – up to 9,9 %, total sugars – up to 41,55 %, and ascorbic acid – up to 112,8 mg%; the amount of catechins does not exceed 3,15 mg%. The tendency to the accumulation of flavonols, saponins and pectic substances during flowering phase in summer, but sugars, tannins and dry substances to the end of the growing season in autumn was revealed. Aizopsis species, S. spurium, S. hispanicum have the highest content of the main groups of biologically active substances. The findings testify to the prospects of stonecrops as a source of various bioactive substances.

Profile Phenolic Compounds in Spanish-Style and Traditional Brine Black Olives (‘Gemlik’ Cv.) Provided from Different Regions of Türkiye

The aim of this study was to evaluate the effect of growing regions and processing methods on the composition and the quantity of phenolic compounds in ‘Gemlik’ variety table olives. Two different processing methods, Spanish-style and traditional brine (naturally processed) olives, were used in the processing of ‘Gemlik’ table olives. According to the data obtained in this study, the highest concentrations of phenolic compounds were observed for 3-hydroxytyrosol (4.58–168.21 mg/kg), followed by 4-hydroxyphenyl (0.76–97.58 mg/kg), luteolin 7-glucoside (0.32–58.64 mg/kg), tyrosol (1.57–47.24 mg/kg), and luteolin (0.17–53.56 mg/kg) in overall samples. The highest quantity of phenolic compounds was determined in raw olives, and the lowest phenolic compound content was determined in Spanish-style processed olives. Table olives which are produced by the natural process were observed to contain higher concentrations of phenolic compounds compared with the olives, which are produced in the Spanish style. In this sense, statistical results showed that region and processing methods have significant impacts on the phenolic compounds of table olives.

Evaluation of Antioxidant, Antimicrobial, and Anticancer Properties of Onion Skin Extracts

Onion skins (OS) are a by-product of onion processing that causes both biological and environmental problems. Thus, OS could be used sustainably and as means of circular economy since they contain valuable bioactive compounds that can be used for the production of high-added-value products. This study aims to evaluate the potential antioxidant, antimicrobial, and anticancer properties of onion OS crude extracts. The extracts were prepared using different solvents (i.e., water, ethanol, and their mixtures) and evaluated for their total phenolic content and phytochemical composition, their antioxidant activity (using the DPPH radical scavenging assay, the ferric reducing antioxidant power (FRAP) assay, and the hydrogen peroxide scavenging assay), anti-inflammatory properties, as well as for their antimicrobial (against Listeria monocytogenes, Escherichia coli O157:H7, Bacillus cereus, Enterococcus faecalis, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhimurium, and Yersinia enterocolitica) and anticancer (against human breast cancer cells (MCF-7) and human glioblastoma cells (U-87 MG)) activity. The results revealed that the extracts contained a significant amount of phenolic compounds, ranging between 348.71 and 795.11 mg gallic acid equivalents per g of dry weight. The extracts showed promising cytotoxic effects (up to ~40%) against cancer cell lines, indicating their potential as a natural source of anticancer agents. Additionally, the extracts exhibited strong antioxidant and antimicrobial activity against the tested microorganisms. The findings of this study suggest that OS crude extracts could be a promising candidate for developing natural functional foods and pharmaceuticals. They could be used as natural alternatives for the prevention and treatment of various diseases caused by oxidative stress, microbial infections, or cancer since they are a valuable source of bioactive compounds that can be used for various applications such as food preservation, nutraceuticals, and pharmaceuticals.

Chemical Composition, Antioxidant Potential, and Nutritional Evaluation of Cultivated Sorghum Grains: A Combined Experimental, Theoretical, and Multivariate Analysis.

Sorghum grain (Sorghum bicolor L. Moench) is a gluten-free cereal with excellent nutritional value and is a good source of antioxidants, including polyphenols, as well as minerals with proven health benefits. Herein, the phenolic composition, elemental profile, and antioxidant activity of sixteen food-grade sorghum grains (S1-S16) grown under agroecological conditions in Serbia were determined. Nine phenolic compounds characteristic of sorghum grains, such as luteolinidin, 5-methoxyluteolinidin, luteolidin derivative, luteolidin glucoside, apigeninidin, 7-methoxyapigeninidin, apigeninidin glucoside, and cyanidin derivative, were quantified. The antioxidant potential of the analyzed sorghum grains was evaluated by UV/Vis (DPPH, ABTS, and FRAP) and Electron Paramagnetic Resonance spectroscopy (hydroxyl and ascorbyl radical scavenging assays). The content of macro- and microelements was determined by Inductively Coupled Plasma Optical Emission spectroscopy. Theoretical daily intakes of selected major and trace elements were assessed and compared with the Recommended Daily Allowance or Adequate Intake. Sample S8 had the highest amount of phenolic compounds, while S4, S6, and S8 exhibited the strongest antioxidative potential. The sorghum studied could completely satisfy the daily needs of macro- (K, Mg, and P) and microelements (Se, Zn, Fe). Pattern recognition techniques confirmed the discrimination of samples based on phenolic profile and elemental analysis and recognized the main markers responsible for differences between the investigated samples. The reaction between hydroxyl radicals and luteolinidin/apigeninidin was investigated by Density Functional Theory and thermodynamically preferred mechanism was determined.

Production of a phenolic-rich extract of aroeira honey and characterization of its antimicrobial, antitumoral and antioxidant activities

Objective: a phenolic-rich extract of Astronium urundeuva honey (PhEAH) wasproduced and its pharmacological proprieties were determined. Method: PhEAHwas prepared using a solid-phase extraction column. Next, antibacterial and antifungalactivities were evaluated by broth microdilution method and the antioxidanteffect was investigated using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay. Urethralcatheter sensitized with PhEAH were produced and its anti-adhesive and anti-biofilmeffect determined. Finally, antitumoral and antiviral activities were studded using3-(4.5-dimethylthiazol-2-yl)-2.5-diphenyltetrazolium bromide (MTT) test. Results:PhEAH showed an elevated total phenol concentration (PhEAH: 18.7±0.4 mg GA/g vs. fresh honey: 0.99±0.005 mg GA/g). Although PhEAH did not show significantantifungal and antiviral effects, it was moderately active against Gram-negative bacilli(Klebsiella aerogenes, K. pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa andEnterobacter cloacae) and showed increased antibacterial activity against salmonellosispathogens (Salmonella Typhimurium and Salmonella Enteritidis). PhEAH-impregnatedurethral catheters inhibited the growth of various pathogenic bacteria andimpaired the ability of P. aeruginosa to colonize and adhere to it. In addition to its antimicrobialactivity, PhEAH presented antioxidant properties and reduced the viabilityof human glioblastoma cells. Conclusion: in conclusion, our study shows that PhEAHcontains large amounts of phenolic compounds, which are associated with its antibacterial,anti-adhesive, antioxidant, and antitumor effects.

Influence of Addition of Dried Maitake and Enoki Mushrooms on Antioxidant, Potentially Anti-Inflammatory, and Anti-Cancer Properties of Enriched Pasta

The influence of the addition of 2.5, 5, 7.5, and 10.0% of dried Enoki and Maitake mushrooms on the content of bioactive compounds and some nutraceutical properties of pasta was determined in the study. The LC-MS/MS analysis of phenolic compounds revealed the highest amount of phenolic compounds in the Maitake-supplemented pasta. However, all the samples of the Enoki-enriched pasta exhibited a statistically significantly higher content of α-glucans than the control. Samples subjected to gastrointestinal digestion had significantly higher antioxidant and potential anti-inflammatory activities than ethanolic and buffer extracts (PBS). The ethanolic extracts from the Enoki- and Maitake-supplemented pasta had higher antioxidant activity (in some antiradical and reducing power assays) and higher lipoxygenase (E2.5 and E5 samples) inhibitory potential compared to the control sample. Additionally, some in vitro digested samples of pasta enriched with dried Enoki and Maitake mushrooms showed higher chelating power (E10, M7.5, and M10), reducing power (E5, E7.5, and M10), and lipoxygenase inhibition ability (E7.5, E10, and M10) than the control. In conclusion, the fortification of pasta with 7.5% and 10% of Enoki mushrooms and with 10% of Maitake mushrooms can be recommended.