scholarly journals Physicochemical Parameters, Mineral Composition, and Nutraceutical Properties of Ready-to-Drink Flavored-Colored Commercial Teas

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Daniel Flores-Martínez ◽  
Vania Urías-Orona ◽  
Luis Hernández-García ◽  
Werner Rubio-Carrasco ◽  
Korev Silva-Gutiérrez ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Mineral Composition ◽  
Physicochemical Parameters ◽  
Titratable Acidity ◽  
Total Flavonoids ◽  
Total Phenols ◽  
Color Parameters ◽  
Total Anthocyanins ◽  
Rose Petal ◽  
Nutraceutical Properties

The physicochemical parameters, mineral composition, and nutraceutical properties of ready-to-drink flavored-colored commercial teas were analyzed in the present study. The pH of samples was slightly acidic (3.72 to 4.11), titratable acidity was low (0.092 to 0.174%), and color parameters were wide variable (pink, yellow, brown, and red). Citrus-flavored tea obtained the highest content of manganese (0.281 mg·L−1), zinc (0.069 mg·L−1), magnesium (2.92 mg·L−1), potassium (62.65 mg·L−1), and sodium (271.74 mg·L−1), while lemon-, peach-, and blueberry-flavored teas obtained the highest levels of copper (0.035 mg·L−1), iron (0.246 mg·L−1), and calcium (18.21 mg·L−1), respectively. Citrus, lemon-, sangria-, and rose petal-flavored teas obtained the highest content in total phenols (211.56 mg·L−1), total flavonoids (65.46 mg·L−1), total catechins (640.79 mg·L−1), and total anthocyanins (640.79 mg·L−1), respectively. Lemon- and rose petal-flavored teas showed the highest and lowest antioxidant capacity levels in DPPH (1096.00 to 118.77 μmolTE·L−1), ABTS (1048.84 to 232.00 μmolTE·L−1), and FRAP (1269.20 to 147.70 μmolTE·L−1) assays. The levels of sodium reported in labels of all samples were lower than data obtained in our analysis. Also the levels observed for total phenols in blueberry-, citrus-, and rose petal-flavored teas were lower than our analysis, but total phenols of lemon-, peach-, and sangria-flavored teas were higher than the content reported in their labels. The results obtained in the present work give information to consumers for choosing flavored-colored ready-to-drink tea based on the physicochemical, nutritional, and nutraceutical properties.

scholarly journals Optimization and Evaluation of Bioactive Characteristics of Commercial Rumex abyssinicus (Mekmeko) Tea in Ethiopia

2020 ◽  
Author(s):  
Kiber Gashe ◽  
Tazebew Alemu
Keyword(s):  
Antioxidant Capacity ◽  
Mineral Composition ◽  
Physicochemical Parameters ◽  
Titratable Acidity ◽  
Sensory Attributes ◽  
Total Flavonoids ◽  
Total Phenols ◽  
Titrable Acidity ◽  
Total Anthocyanins ◽  
Nutraceutical Properties

The physicochemical parameters, mineral composition, and nutraceutical properties of commercial “mekmeko” teas powder were analyzed in the present study. The pH of samples was slightly acidic (3.74 to 4.15), titratable acidity was low (0.094 to 0.155%) and sensory attributes (over all acceptability) were wide variable (5.9 - 6.69). The optimized selected commercial “mekmeko” tea obtained pH(4.05), titrable acidity(0.069%) ,acceptable sensory results (6.69), acceptable highest content of zinc (0.069 mg•L−1), magnesium (2.12 mg•L−1), potassium (62.34 mg•L−1),iron (0.28 mg•L−1) and calcium (17.19 mg•L−1). The nutrceticual property of optimized commercial “mekmeko” tea obtained acceptable highest content in total phenols (211.38 mg•L−1), total flavonoids (62.98 mg•L−1), total catechins (409.67 mg•L−1), and total anthocyanins (581.97 mg•L−1). Optimized “Mekmeko” teas showed the highest antioxidant capacity levels in DPPH (718.41 μmolTE•L−1), ABTS (607.62μmolTE•L−1), and FRAP (953.81μmolTE•L−1) assays. The results obtained in the present work give information to consumers for choosing flavored-colored ready-to-drink “mekmeko” tea based on the physicochemical, nutritional and nutraceutical properties.

scholarly journals Influence of Organic Fertilization on Nutritional Characteristics and Antioxidant Capacity of Melon Fruits

2020 ◽  
Vol 77 (2) ◽  
pp. 17
Author(s):  
Tatyana BILEVA ◽  
Nadezhda PETKOVA ◽  
Todor BABRIKOV
Keyword(s):  
Antioxidant Capacity ◽  
Titratable Acidity ◽  
Organic Fertilizers ◽  
Total Flavonoids ◽  
Total Phenols ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Healthy Nutrition ◽  
Nutritional Characteristics ◽  
Total Flavonoids Content

This study aimed to investigate the influence of organic fertilization on nutritional characteristics and antioxidant capacity of three melon varieties fruits (Cucumis melo L.) - Hybrid 15 F1, Desserten 5, and Galia. The trials were carried out under greenhouse conditions in the infested with root-knot nematodes soil. Galia was grown with mineral fertilization. The other two varieties were treated with organic fertilizers - Liquid “Humus Active” during vegetation and Neem cake twice - before planting and during flowering. The dry matter, ash, titratable acidity, pH, carbohydrate, protein, lipid content, pigments, total phenols, and total flavonoids, and the antioxidant capacity were evaluated. Desserten 5 demonstrated the highest sugars content – sucrose (5.32 g/100 g), glucose (1.35 g/100 g) and fructose (2.51 g/100 g), as well as the highest carotenoids (90 μg/100 g fw), total phenols (540 mg GAE/100 g fw), and total flavonoids content (73 mg QE/100 g fw) and antioxidant capacity(25 mM TE/100 g). The results revealed that the nutritional value of melon fruits could be improved by using organic fertilization for the production of foods for healthy nutrition.

scholarly journals Exploring Antioxidant Activity, Organic Acid, and Phenolic Composition in Strawberry Tree Fruits (Arbutus unedo L.) Growing in Morocco

Plants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1677
Author(s):  
Hafida Zitouni ◽  
Lahcen Hssaini ◽  
Rachida Ouaabou ◽  
Manuel Viuda-Martos ◽  
Francisca Hernández ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Titratable Acidity ◽  
Dry Weight ◽  
Soluble Solids ◽  
Total Flavonoids ◽  
Total Phenols ◽  
Strawberry Tree ◽  
Total Anthocyanins ◽  
Tree Fruits ◽  
Β Carotene

This study aimed to explore the main biochemical components and the antioxidant capacity of five strawberry tree fruits using three antioxidant essays within the ecotypic comparison scheme, to find out the most valuable fruit presenting disease-preventing properties. Total phenols, total flavonoids, total anthocyanins, antioxidant activity (DPPH, ABTS, and β-Carotene bleaching assays), pH, titratable acidity, soluble solids, and moisture content were investigated in five strawberry tree genotypes belonging to several areas in Morocco. Phenolic compounds were also identified using high performance chromatography (HPLC), with a diode array detector (DAD). High significant differences (p ˂ 0.05) were revealed among the examined genotypes regarding their total phenols (25.37–39.06 mg gallic acid equivalents (GAE)/g Dry weight (DW), total flavonoids (3.30–7.07 mg RE/g Dry weight (DW), total anthocyanins (0.15–0.64 mg cya-3-glu/100g Dry weight (DW), pH (2.44–3.92), titratable acidity (0.65–1.01 g malic acid/100g Fresh weight (FW), and soluble solids (14.83–18.53%). The average radical scavenging capacity, assessed using three methods, exhibited the following concentration ranges: 3.33–21.08, 2.25–19.58, and 1.08–13 mg Ascorbic Equivalent (AAE/g Dry weight(DW) for the DPPH scavenging test, ABTS, and β-carotene bleaching, respectively. Seventeen phenolic compounds were identified in sampled cultivars. Gallocatechol and catechin were found to be the major phenolic compounds. The correlation matrix revealed significant correlations among investigated variables, particularly ABTS and DPPH. The principal component analysis showed that the first three components formed 90.25% of the total variance. The following variables: chlorogenic acid, ellagic acid derivative, ellagic acid, rutin, and cyanidin−30.5-diglucoside, were the most involved in the total variance. The results revealed highly promising physico-biochemical profiles within the studied strawberry tree genotypes.

scholarly journals Antioxidant Capacity, Total Phenols, Total Flavonoids and Colour Component of Cornelian Cherry (Cornus mas L.) Wild Genotypes

2018 ◽  
Vol 47 (2) ◽  
pp. 390-394 ◽  
Author(s):  
Sina N. COSMULESCU ◽  
Ion TRANDAFIR ◽  
Felicia CORNESCU
Keyword(s):  
Antioxidant Capacity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Total Flavonoids ◽  
Blue Color ◽  
Total Phenols ◽  
Cornelian Cherry ◽  
Color Component ◽  
Cornus Mas

A number of selected cornelian cherry wild genotypes were investigated regarding antioxidant capacity, total phenols, total flavonoids and colour component. The total phenolic, total flavonoids and antioxidant activity of methanol extract of cornelian cherry fruits were determined using Folin-Ciocalteu, colorimetric and DPPH methods, respectively. Total phenolic content ranged from 163.69 (S1) to 359.28 (H2) mg GAE 100 g-1 FW. Genotypes H2 and H3 had the highest total phenolic content (359.28 and 343.50 mg GAE 100 g-1 FW, respectively), total flavonoids (54.26 and 64.48 mg QE 100 g-1 FW, respectively) and antioxidant capacity (2.39 and 2.71 mmolTrolox100g-1 FW, respectively). Significant differences of yellow/blue color component (b*), red/ green (a*) color component, values of lightness (L*) and chroma (C) were obtained for extracts from fruits. The present study shows the potential of certain cornelian cherry genotypes as valuable source of natural antioxidants and gene stock for breeding programs.

scholarly journals Elaboración de una Crema Cosmética a Partir de Extractos de Coriandrum Sativum

2021 ◽  
Vol 6 (2) ◽  
pp. 153
Author(s):  
Viviana Garcia Mir ◽  
Elena Katherine Basurto ◽  
Estefania Amanda Rueda ◽  
Kevin Paul Noles
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Physicochemical Parameters ◽  
Coriandrum Sativum ◽  
Mix Design ◽  
Sodium Borate ◽  
Uv Spectrophotometry ◽  
Total Phenols ◽  
Hydroalcoholic Extract ◽  
Optimal Mix

  Coriandrum sativum L. es una hierba aromática muy empleada como condimento. Presenta gran variedad de metabolitos con diversas propiedades, incluyendo elevada actividad antioxidante. El objetivo del trabajo fue diseñar una crema a partir de extracto hidroalcohólico obtenido de las hojas de Coriandrum sativum L (cilantro) con fines cosméticos. Se partió del estudio de algunos parámetros fisicoquímicos del material vegetal incluyendo la cuantificación del contenido de grasa por resonancia magnética nuclear de baja resolución. Mediante espectrofotometría UV, se valoró el contenido de fenoles totales y la capacidad antioxidante (DPPH) a diferentes extractos de las hojas y los tallos con etanol al 25, 50 y 75%. La mayor cantidad de fenoles totales y actividad antioxidante se obtuvo en el extracto hidroalcohólico (50%) de las hojas con valores de 21,867/0,275 mg/g de muestra seca y 56,68% de decoloración del DPPH. Se diseñó una crema (w/o) a partir del extracto hidroalcohólico de las hojas al 50%, con empleo del diseño de mezcla D-optimal de tres componentes con restricciones: cera de abeja, borato de sodio y agua. Las variables respuesta fueron pH y el área de extensibilidad. Ambas variables presentaron modelos cuadráticos obteniendo una significación p < 0,0002, pérdida de ajuste p>0,05 y R2 ajustado cercano a 1. Finalmente, la formulación obtenida fue la combinación cera de abeja 11,3- borato de sodio- 1 y agua 14,5 con un pH 6,8, extensibilidad 23,7 y 100% deseabilidad. De esta manera se desarrolló una preparación cosmética (crema) de uso tópico natural con actividad antioxidante, empleando herramientas estadísticas.   Palabra clave: Coriandro sativum, fenoles totales, capacidad antioxidante, diseño D-optimal.   Abstract Coriandrum sativum L. is an aromatic herb widely used as a condiment. It presents a variety of metabolites with various properties, such as antioxidant activity. The objective of this work was to design a cream from the hydroalcoholic extract obtained from the leaves of Coriandrum sativum L (Culantro) for cosmetic purposes. A physicochemical parameters study was carried out on the raw drug, including a fat content determination by Low-Resolution Nuclear Magnetic Resonance. The antioxidant capacity (DPPH) and total phenols content were valued in different leaves and stems extracts with 20, 50, and 75% of ethanol through UV spectrophotometry. The highest amount of total phenols was obtained in the hydroalcoholic extract (50%) of leaves with 21,867 / 0,275 mg/g from a dry sample and 56.68% DPPH discoloration. A cosmetic cream was designed starting from a 50% hydroalcoholic leaves extract using a three components D-optimal mix design with restrictions: beeswax, sodium borate, and water. Extensibility, area, and pH were the response variables. Both variables presented quadratic and special cubic models obtaining values of p <0.05, adjustment lost p>0,05, and adjusted R2 near to 1. Experiment 1 shows 100% desirability. The analysis allowed a cosmetic preparation (cream) for natural topical use with antioxidant activity was developed using statistical tools.  Keywords: Coriandrum sativum, total phenols, antioxidant capacity, D-optimal.

scholarly journals Polyphenol content and antioxidant activity of sour cherries from Serbia

2012 ◽  
Vol 18 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Milan Mitic ◽  
Mirjana Obradovic ◽  
Danijela Kostic ◽  
Ruzica Micic ◽  
Emilija Pecev
Keyword(s):  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Sour Cherry ◽  
Total Phenols ◽  
Climate Conditions ◽  
Growing Seasons ◽  
Significant Difference ◽  
Neochlorogenic Acid ◽  
Total Antioxidant ◽  
Total Anthocyanins

The aim of this study is to evaluate the content of phenolics: the total phenols (TP), flavonoids (TF), anthocyanins (TA), as well as the total antioxidant capacity (TAC) in three sour cherry cultivars (Prunus cerasus L.) introduced to the southeast Serbia climate conditions. Among the researched sour cherries, ?Oblacinska? cultivar contained the highest amounts of all groups of phenolics, followed by ?Cigancica? > ?Marela?. A significant difference were observed in the phenolic content among different cultivars and growing seasons (p<0.05), and the phenolic compounds were significantly higher in the growing season 2009. The examined cultivars possess a high antioxidant capacity, and all phenolics of highy correlation with TAC. The following compounds were identified and quantified using HPLC-DAD: 4 anthocyanins, the most abundant of which was cyaniding-3-glucoside in ?Marela? and ?Oblacinska?, and cyanidin-3-glucosylrutinoside in ?Cigancica?, and 4 hydroxycinnamic acids, the most abundant of which was neochlorogenic acid in all sour cherry cultivars. The growing and ripening process on the tree of sour cherry cv. Oblacinska was evaluated, also. The results showed significant increases in total phenols during the ripening, the total anthocyanins and total antioxidant capacity and 4 quantified anthocyanins, however the neochlorogenic acid decreased during the ripening. The study indicated that the growing and climate conditions in southeast Serbia are convenient for introducing sour cherry cultivars.

scholarly journals Effects of Drought on Yield and Nutraceutical Properties of Beans (Phaseolus spp.) Traditionally Cultivated in Veneto, Italy

Horticulturae ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 17
Author(s):  
Pietro Sica ◽  
Aline Galvao ◽  
Francesco Scariolo ◽  
Carmelo Maucieri ◽  
Carlo Nicoletto ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Calcium Content ◽  
Total Phenols ◽  
Local Varieties ◽  
Development Stages ◽  
Cultivation Period ◽  
Zn Content ◽  
Effects Of Drought ◽  
Seed Calcium ◽  
Nutraceutical Properties

Beans are often grown in regions with climates that are susceptible to drought during the cultivation period. Consequently, it is important to identify bean accessions tolerant to drought conditions and assess the effect of drought on seeds’ nutraceutical properties. This study evaluated the effect of drought during different development stages (NES = never stressed; ALS = always stressed; SBF = stressed before flowering; SAF = stressed after flowering) on the yield and nutraceutical properties of six local bean varieties: Fasolo del Diavolo, Gialet, Posenati, Secle, D’oro, and Maron. Analysis of variance indicated that Gialet was not significantly affected by drought treatments, and Posenati under SBF and NES treatments had greater yields than under ALS and SAF treatments, whereas Secle under SBF produced 80% more seeds than under NES. Total phenols, antioxidant capacity, and calcium content were significantly different among the local varieties. Yield was significantly and positively correlated with seed calcium content and significantly and negatively correlated with protein, total phenols, and antioxidant capacity. The interaction between local varieties and treatment significantly affected seeds’ Zn content. Gialet and Maron seeds’ Zn contents were about 60 mg kg−1, almost double the average of commercial varieties. In summary, this study paves the way to the identification of potential bean varieties resistant to drought. Further molecular studies will help support these findings.

scholarly journals Peach, Apple, and Pear Fruit Quality: To Peel or Not to Peel?

Horticulturae ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 85
Author(s):  
Michail Michailidis ◽  
Evangelos Karagiannis ◽  
Elpida Nasiopoulou ◽  
Christina Skodra ◽  
Athanassios Molassiotis ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Dry Matter ◽  
Prunus Persica ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Pyrus Pyrifolia ◽  
Total Phenols ◽  
Fruit Peel ◽  
Solids Concentration ◽  
High Level

The nutritional value of the peeled and unpeeled fruit (peel plus flesh tissues) was studied using four peach (Prunus persica L.; Red Heaven, Maria Blanca, Big Top, and Queen Giant), two pear (Pyrus communis L.; Santa Maria, Pyrus pyrifolia N.; Nashi), and three apple (Malus domestica Borkh.; Gala, Granny Smith, and Red Chief) cultivars. Based on principal components analysis (PCA) models, there was a clear differentiation among the cultivars’ and the peeled fruits’ nutritional characteristics in comparison to the unpeeled ones. Increased antioxidant capacity and content of total phenols and flavonoids of peaches (Red Heaven and Maria Blanca) versus nectarines (Big Top and Queen Giant) were recorded. In contrast, nectarines were characterized by higher hydroxycinnamates and dry matter. The apples’ cultivar Granny Smith exhibited a high level of titratable acidity (TA), while the Gala displayed a high level of soluble solids concentration (SSC), carotenoids, dry matter, hydroxycinnamic acids, and flavonols at the unpeeled fruit, whereas the Red Chief by increased anthocyanins, antioxidant capacity, total phenols, and flavonoids. Nashi pears with peel were more beneficial due to the strong skin contribution in the fruits’ beneficial compounds content. The peel of the Granny Smith cultivar was associated with an increased level of P, K, Ca, and Mg, whereas that of Red Chief with increased anthocyanins and Mg content.

scholarly journals 1-Methylcyclopropene Optimal Concentration and Treatment Conditions for Extending Storage Life of Strawberries

2015 ◽  
Vol 15 (4) ◽  
pp. 351
Author(s):  
Mirjana Žabić ◽  
Boris Pašalić ◽  
Borut Bosančić
Keyword(s):  
Titratable Acidity ◽  
Cost Effective ◽  
Storage Life ◽  
Optimal Concentration ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Total Phenols ◽  
Treatment Conditions ◽  
Cold Room ◽  
Total Anthocyanins

Given that strawberries are very short-lived and easily perishable, extending their shelf life would be very cost effective. Strawberries of the Arosa cultivar were treated with various concentrations of 1-methyl­cyclopropene (0.050, 0.100, 0.500 ppm) in order to determine the optimal concentration for extending their storage life. Two different treatment conditions were used: treatment for 2 h at 20°C and treatment for 20h at 4°C. Total phenols content, total anthocyanins, total soluble solids, fruit firmness, titratable acidity, pH and weght loss were monitored for 11 days of storage in the cold room at 3oC. The best results were achieved by treatment with 0.1 ppm 1-methylcyclopropene for 2 h at 20°C.

scholarly journals Biofortification efficiency with magnesium salts on the increase of bioactive compounds and antioxidant capacity in snap beans

2021 ◽  
Vol 51 (6) ◽  
Author(s):  
Juan Pablo Ciscomani-Larios ◽  
Esteban Sánchez-Chávez ◽  
Juan Luis Jacobo-Cuellar ◽  
Hilda Karina Sáenz-Hidalgo ◽  
Nuvia Orduño-Cruz ◽  
...  
Keyword(s):  
Rural Communities ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Magnesium Chloride ◽  
Crop Production ◽  
Mineral Fertilizers ◽  
Total Flavonoids ◽  
Snap Bean ◽  
Snap Beans ◽  
Total Anthocyanins

ABSTRACT: Biofortification of food crops is implemented through the application of mineral fertilizers, to improve the levels of essential mineral elements for human nutrition. Magnesium is a key macronutrient in crop production and quality; however, worldwide, it is the most limiting macronutrient in agriculture. Magnesium plays an important role in manipulating physiological and biochemical processes in plants. Therefore, the objective of this study was to evaluate the efficacy of biofortification with magnesium chloride and sulfate on the accumulation of bioactive compounds and antioxidant capacity in snap bean cv. Strike. Two sources of Magnesium were applied via edaphic route: Magnesium chloride and magnesium sulfate at doses of 0, 50, 100 and 200 ppm during 2018 in Mexico. Accumulation of bioactive compounds (total phenols, total flavonoids and total anthocyanins) and antioxidant capacity in snap bean fruits were evaluated. Results obtained indicate that the concentration of total flavonoids, total anthocyanins and antioxidant capacity in the edible parts of snap beans were higher in the MgSO4 treatment than in the MgCl2 treatments, exceeding 30, 59 and 6% respectively. This is one of the first studies on the edaphic agronomic biofortification of Mg+ and its effect on nutraceutical quality in snap bean. An interesting result is that MgSO4 produced high concentrations of anthocyanins in edible snap beans. These results can be applied as a new strategy to reduce malnutrition and improve the health of the population in poor urban and rural communities in developing countries.

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