scholarly journals Physical-chemical properties of exotic and native Brazilian fruits

2019 ◽  
Vol 68 (3) ◽  
pp. 175-181 ◽  
Author(s):  
Veridiana Zocoler de Mendonça ◽  
Rogério Lopes Vieites
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
High Concentration ◽  
Bioactive Substances ◽  
Fruit Species ◽  
Physical Chemical ◽  
Spondias Purpurea

Many fruit species are still not well-studied, despite being rich in bioactive substances that have functional properties. The objective of this article was to evaluate the antioxidant potential and characterize the physical-chemical characteristics of unconventional brazilian fruits (cabeludinha - Myrciaria glazioviana, sapoti - Manilkara zapota, pitomba - Talisia esculenta, yellow gumixama - Eugenia brasiliensis var. Leucocarpus and seriguela - Spondias purpurea). Total soluble solids, pH, titratable acidity, sugars, pigments, phenolic compounds and antioxidant capacity were measured. Mature fruits were used in the analyses. Pitomba had high levels of soluble solids, 24.6 °Brix, while sapoti had 0.05 g malic acid 100 g-1 pulp. Yellow grumixama and seriguela had the highest concentrations of anthocyanins and carotenoids. Cabeludinha had a high concentration of phenolic compounds, 451.60 mg gallic acid 100 g-1 pulp. With the exception of sapoti, all fruits had a high antioxidant capacity (> 95%).

scholarly journals Kumquat (Fortunella margarita): A Good Alternative for the Ingestion of Nutrients and Bioactive Compounds

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 105
Author(s):  
Clarice Silva e Souza ◽  
Pamella Cristine Anunciação ◽  
Ceres Mattos Della Lucia ◽  
Rosana Gonçalves Rodrigues das Dôres ◽  
Regina Célia Rodrigues de Miranda Milagres ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Dietary Fiber ◽  
Inductively Coupled Plasma ◽  
Soluble Solids ◽  
Emission Spectrometry ◽  
Total Phenolic ◽  
High Concentration ◽  
Fruit Peel ◽  
Total Dietary Fiber

Citrus fruit is preferred in the choice of consumers. Kumquat (F. margarita) is an unconventional citrus of increasing consumer interest because of its exotic flavor, and its functional potential that offers health benefits to consumers. It is a fruit traditionally consumed by whole fruit (peel and pulp), giving this fruit a distinctive flavor. For this reason, this study analyzed the physical, chemical, and nutritional characteristics of kumquat (peel and pulp). The physicochemical analysis was performed according to the Adolfo Lutz Institute. Analysis of moisture, ashes, macronutrients, and total dietary fiber was carried out according to AOAC. Minerals were analyzed by inductively coupled plasma optical emission spectrometry. Vitamins C and E, carotenoids and flavonoids were analyzed by HPLC. Phenolic compounds (Folin-Ciocalteu) and antioxidant capacity (DPPH) were determined by spectrophotometry. The kumquat had low pH, soluble solids content and low caloric value. It was a source of dietary fiber, minerals (K, Ca, P, Mg) and carotenoids; the most expressive was α-carotene (661.81 μg 100 g−1). The ascorbic acid concentration was 2326.24 μg 100 g−1. α-tocopherol (569.00 μg 100 g−1) was the most expressive component of vitamin E. There was a presence of apigenin and eriodictyol. The fruit (peel and pulp) has a high concentration of total phenolic compounds (98.55 ± 1.93 mg GAE 100 g−1) and good antioxidant capacity (62%) was found. Kumquat is a good source of fiber and vitamin A, and due to its antioxidant capacity and the presence of other essential and beneficial nutrients for a diet, consumption of kumquat can be suggested to complement the diet. This fruit is a viable food alternative, and its consumption should be encouraged, contributing a source of income, sovereignty, and food security.

scholarly journals PHYSICOCHEMICAL CHARACTERISTICS, ANTIOXIDANT CAPACITY AND PHENOLIC COMPOUNDS OF TOMATOES FERTIGATED WITH DIFFERENT NITROGEN RATES

2017 ◽  
Vol 30 (1) ◽  
pp. 237-243 ◽  
Author(s):  
MARCOS FILGUEIRAS JORGE ◽  
◽  
KAMILA DE OLIVEIRA DO NASCIMENTO ◽  
JOSÉ LUCENA BARBOSA JUNIOR ◽  
LEONARDO DUARTE BATISTA DA SILVA ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fecal Coliforms ◽  
Total Phenolic ◽  
Frap Assay ◽  
Antioxidant Capacities ◽  
Microbiological Characteristics ◽  
Nitrogen Rates

ABSTRACT The objective of this work was to evaluate the physicochemical and microbiological characteristics, antioxidant capacity and phenolic compounds of organic cherry tomatoes grown under fertigation with organic dairy cattle wastewater (DCW) with different nitrogen rates. Tomato plants, grown in an agroecological farm in Seropédica, State of Rio de Janeiro, Brazil, were subjected to four different nitrogen rates (T1=0, T2=50, T3=100 and T4=150% of N). The moisture, lipids, ashes, protein and total fiber contents, soluble solids (ºBrix), reducing and total sugars (%), pH and total titratable acidity (mg NaOH per 100 g) were evaluated. The total phenolic content (TPC) and the antioxidant capacity was determined by the DPPH and FRAP methods. The different nitrogen rates (%N) affected the pH, protein and soluble solids contents. The increase in %N increased the antioxidant capacities, according to the DPPH assay, and TPC. On the other hand, the tomatoes under fertigation with the highest %N presented lower antioxidant capacities according to the FRAP assay. The fertigation did not affect the microbiological characteristics of the tomatoes, which presented fecal coliforms count <3 NMP g-1 and absence of Salmonella in 25 g.

scholarly journals Ripe Ora-pro-nobis (Pereskia aculeata miller) fruits express high contents of bioactive compounds and antioxidant capacity

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Aline Priscilla Gomes da Silva ◽  
Poliana Cristina Spricigo ◽  
Thais Pádua de Freitas ◽  
Thiago Machado da Silva Acioly ◽  
Severino Matias de Alencar ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Maturity Stage ◽  
Total Phenolic Compounds ◽  
Total Carotenoids ◽  
Significant Difference

Abstract Pereskia aculeata Miller is a native cactaceae found from the Northeast to the South of Brazil. This plant is recognized by the high nutritional value of their leaves, which are the most used in cooking and folk medicine. However, studies on the chemical characteristics and antioxidant capacity of the ora-pro-nobis fruits are scarce. Therefore, the aim of this study was to determine the best harvest point of the ora-pro-nobis fruits to optimize the content of bioactive compounds and their antioxidant capacity. The fruits were manually harvested, defined by their peel colors in three maturity stages: unripe (green), intermediate (yellowish green), and ripe (yellow) stages. The following attributes were evaluated: soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH, and content of bioactive compounds, such as total chlorophylls, carotenoids, yellow flavonoids, total phenolic compounds, and antioxidant capacity. There was a decrease in the content of chlorophyll followed by an increase in the of total carotenoids and yellow flavonoids, due to the maturity stage. For the total phenolic compounds, it was not observed significant difference between the stages. The antioxidant capacity was quantified by the ORAC method in lyophilized pulp in the unripe (1.95 mmol 100 g-1 trolox) and ripe (3.85 mmol 100 g-1 trolox) stages. The lowest contents were observed in the intermediate (0.80 mmol 100 g-1 trolox in lyophilized pulp) stage. The maturity stage significantly influenced the bioactive compounds of ora-pro-nobis, which presented higher values of total carotenoids, yellow flavonoids, and antioxidant capacity in ripe fruits.

scholarly journals PHENOLIC COMPOSITION AND ANTIOXIDANT CAPACITY OF AQUEOUS AND ETHANOLIC EXTRACTS OF BLACKBERRIES

2016 ◽  
Vol 38 (2) ◽  
Author(s):  
VIVIANE MARCELA CELANT ◽  
GILBERTO COSTA BRAGA ◽  
JESSICA ARIANE VORPAGEL ◽  
ARIANE BUSCH SALIBE
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Ethanolic Extract ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Phenolic Composition ◽  
Aqueous Solvent ◽  
Linear Correlations

ABSTRACT The objective of this work was to evaluate the content of phenolic compounds, anthocyanins and flavonoids extracted with 80% ethanol and water, and antioxidant capacity (DPPH and ABTS) of five blackberry cultivars produced in Western Paraná, Brazil. Brazos, Tupy, Arapaho, Choctaw and Guarani blackberries were studied. Soluble solids, titratable acidity and ascorbic acid of fruits were also characterized. Total phenolic compounds ranged from 8.23 to 14.98 mg GAE g-1 (f.w.) and Arapaho cultivar exhibited the highest contents in both solvents. Anthocyanins ranged from 2.57 to 9.42 mg ECy3glu g-1 (f.w.), being the solvent ethanol 80% more efficient than the water, and Choctaw cultivar showing the highest content. Flavonoids ranged from 0.46 to 1.14 mg EQ g-1 (f.w.) and Guarani cultivar showed the highest content. High linear correlations were found between total phenolics and antioxidant capacity in both extraction solvents. However, linear correlations between anthocyanins and antioxidant capacity were observed only for the aqueous solvent. Ascorbic acid ranged from 87.87 to 134.09 mg 100 g-1, with emphasis on Brazos cultivar. The aqueous extract showed greater ability to scavenge ABTS radical, but the ethanolic extract was more efficient for the DPPH radical. Blackberries produced under Western Paraná conditions showed high levels of antioxidants with emphasis on Arapaho cultivar. This study showed that water and ethanol solvents influence different results on phenolic composition and antioxidant activity of blackberries.

Characterization and Correlation Analysis of Physical and Physico-Chemical Properties of Cambucá Fruits (Plinia edulis)

2019 ◽  
pp. 1-9
Author(s):  
Antônio Gustavo de Luna Souto ◽  
Maria Helena Menezes Cordeiro ◽  
João Paulo Gava Cremasco ◽  
Valtânia Xavier Nunes ◽  
Keise Barcelas Morais ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Transverse Diameter ◽  
Average Mass ◽  
Fruit Species ◽  
Physico Chemical ◽  
Yellow Orange

Aims: This study was to characterize and correlate physical and physico-chemical properties of cambucá fruits (Plinia edulis). Study Design: Experimental design was completely randomized with fifteen samples of five fruits each. Place and Duration of Study: Experimental orchard of the Department of Plant Science, Federal University of Viçosa (UFV), located in the municipality of Viçosa, Zona da Mata of Minas Gerais during the month of February 2015. Methodology: Fruits were sampled when 100% of peels presented yellow-orange color. The following characteristics were evaluated: longitudinal and transverse diameter, total mass of both pulp and seed, pulp color, soluble solids, titratable acidity, soluble solids/titratable acidity ratio, ascorbic acid and carotenoids contents. To verify the degree of correlation between two physico-chemical variables, a Pearson analysis was performed. Results: Cambucá fruits showed average values of longitudinal and transverse diameter of 37.76 and 44.36 mm, respectively. Fruits’ average mass were 44.12 g and the percentage of pulp was 82.15%. Both soluble solids and titratable acidity presented the respective average values: 10.53 ºBrix, 1.34 mg of citric acid and 100 mL-1 of pulp. Larger cambucá fruits presented higher pulp yield and lower acidity. The increase in ascorbic acid was positively correlated with the contents of soluble solids and carotenoids. Conclusion: Fruits of cambucá have potential for commercialization, their characteristics are similar to those found in other fruit species native to the Myrtaceae family and already found in the fruit market.

scholarly journals BOTÂNICA E FISIOLOGIA/ BOTANY AND PHYSIOLOGY ANTIOXIDANT ACTIVITY AND PHYSICOCHEMICAL PARAMETERS IN ‘CUERNAVAQUEÑA’ MEXICAN PLUM (Spondias purpurea L.) AT DIFFERENT RIPENING STAGES

2017 ◽  
Vol 39 (4) ◽  
Author(s):  
ADABELLA SUÁREZ VARGAS ◽  
PORFIRIO JUÁREZ-LÓPEZ ◽  
VÍCTOR LÓPEZ-MARTÍNEZ ◽  
LAURA JOSEFINA PÉREZ FLORES ◽  
DAGOBERTO GUILLÉN SÁNCHEZ ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Ripening Stages ◽  
Solids Concentration ◽  
Spondias Purpurea ◽  
Ripe Stage ◽  
Soluble Solids Concentration

ABSTRACT Mexican plum (Spondias purpurea L.) ‘Cuernavaqueña’ was harvested at four ripening stages, with the aim of evaluating the concentration of bioactive compounds and antioxidant capacity in the pulp and the epicarp. The highest ethylene production (9.43 mL kg h-1) and total soluble solids concentration (23.9 °Brix) was observed in the fully ripe stage. Titratable acidity was higher in green stage compared to other analyzed ripening stages in both pulp (0.48 %) and epicarp (0.32 %). Fully ripe plum epicarp presented the highest content of total phenols (GAE 190 mg g-1), flavonoids (QE 214 mg g-1), and carotenoids (853 mg g-1) compared to other ripening stages. The antioxidant capacity was higher in the epicarp of the fully ripe fruit compared to the other ripening stages: DPPH (1087 µM TE /100 g), ABTS (1534 µM TE/100 g), and FRAP (1764 µM TE/100 g). Significant correlations (r = 0.60 *** to 0.95 **) between bioactive compounds concentrations and antioxidant activity were obtained.

scholarly journals Physicochemical quality, antioxidant capacity and nutritional value of edible flowers of some wild dahlia species

2019 ◽  
Vol 31 (2) ◽  
pp. 331-342 ◽  
Author(s):  
Esteban Arturo Rivera Espejel ◽  
Oscar Cruz Alvarez ◽  
José Merced Mejía Muñoz ◽  
María del Rosario García Mateos ◽  
María Teresa Beryl Colinas León ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Eating Habits ◽  
Titratable Acidity ◽  
Nutritional Composition ◽  
Soluble Solids ◽  
Fresh Weight ◽  
High Concentration ◽  
Physicochemical Quality ◽  
Centre Of Origin

AbstractMexico is the centre of origin and domestication of the dahlia, which has the widest distribution worldwide as an ornamental plant; however, due to changes in eating habits in some sectors of the population (vegetarians and vegans), it has also been incorporated as an ingredient in the gastronomic field. The aim of this research was to determine the attributes of physicochemical quality, antioxidant capacity and nutritional value of ligulate flowers of some wild dahlia species. A completely randomized experimental design with five repetitions was used. Fresh weight, total titratable acidity (TTA), total soluble solids (TSS), ascorbic acid (AA), colour, total phenols (TP), total flavonoids (TFl), total anthocyanins (TAn), antioxidant capacity (AC) and proximate composition were evaluated. The highest fresh weight was observed in D. × hortorum, with similar values among its different flower colours. Likewise, D. merckii and D. coccinea stood out for their high TTA value; however, D. coccinea also had the highest AA content (0.77-0.9 mg g−1 FW), TP (12.87-19.92 mg GAE g−1 FW), TFl (6.78-11.32 mg QE g−1 DW) and AC (47.28-60.43 mg AAEVC g−1 FW). On the other hand, D. campanulata was notable for its high levels of moisture, fat and raw fibre; similarly, D. coccinea stood out for its high amounts of dry matter and total carbohydrates. The ligulate flowers of wild dahlias have a high concentration of bioactive compounds and a nutritional composition with beneficial contributions to health care, so they could be used for consumption as fresh products.

scholarly journals Phenolic compounds and phytochemicals in fruits of black mulberry (Morus nigra L.) genotypes from the Aegean region in Turkey

2018 ◽  
Vol 30 (1) ◽  
pp. 93-101 ◽  
Author(s):  
Volkan Okatan
Keyword(s):  
Phenolic Compounds ◽  
Vitamin C ◽  
Antioxidant Capacity ◽  
Phenolic Content ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Morus Nigra ◽  
Almost Everywhere ◽  
Solids Content

Abstract Turkey is one of the most important centres of mulberry genetic resources and mulberries grow naturally almost everywhere in Turkey. This study was carried out to determine the most important phenolic compounds and phytochemical properties of mulberry (Morus nigra L.) genotypes collected from natural resources in 2016-2017 in the province of Uşak (Turkey). The investigated biochemical characteristics included: total soluble solids content (TSS), pH, titratable acidity, total phenolic content, vitamin C and antioxidant capacity (DPPH). The highest values of phenolic compounds, i.e. ellagic acid, rutin, quercetin, gallic acid, catechin, chlorogenic acid and caffeic acid, were as follows: 5.89, 133.60, 11.25, 40.90, 10.54, 97.59 and 21.93 g 100 g−1, respectively. The highest values of total phenolics, vitamin C content and antioxidant capacity determined in the investigated mulberry genotypes were 2977.30 mg GAE g−1, 31.34 mg 100 g−1 and 26.80%, respectively. The genotypes 64USA08, 64USA06 and 64USA10 can be recommended in terms of the most valuable chemical composition and used for future breeding purposes. It is desirable to take steps to implement an intensive programme for the preservation of Morus nigra L. biodiversity in Turkey.

scholarly journals Development of ‘Maciel’ peach trees on different propagation systems

2018 ◽  
Vol 40 (4) ◽  
Author(s):  
Aline Ramm ◽  
André Luiz Külkamp de Souza ◽  
Roberta Manica-Berto ◽  
Cari Rejane Fiss Timm ◽  
Márcia Wulff Schuch ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
New Technologies ◽  
Block Design ◽  
Titratable Acidity ◽  
Productive Efficiency ◽  
Soluble Solids ◽  
Trunk Diameter ◽  
Canopy Volume ◽  
Peach Trees

Abstract The development of new technologies for seedling production is essential in fruit growing. In this context, the objective was to compare vegetative and productive aspects of ‘Maciel’ peach trees and the quality of fruits from plants under different propagation systems. The experiment was carried out in a randomized complete block design with four replications, in a 2 x 3 factorial scheme, two years (2014 and 2015) and three propagation systems (self-rooted ‘Maciel’ (minicutting), ‘Maciel’ with rootstock ‘Okinawa’ (minicutting) e ‘Maciel’ with rootstock ‘Okinawa’ (seed)). The variables evaluated were canopy volume, trunk diameter, yield, productive efficiency, fruit diameter, soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH, pulp firmness, carotenoids, phenolic compounds and antioxidant capacity. The self-rooted ‘Maciel’ peach plants, in the second year of evaluation, present higher canopy volume, trunk diameter and thus, they express higher yield and productive efficiency. Fruit quality how much soluble solids, titratable acidity, SS/TA ratio, pH and pulp firmness are not altered by different propagation systems. The use of different propagation systems over two years modifies the levels of carotenoids and phenolic compounds total and, consequently, the antioxidant capacity of the fruits of ‘Maciel’ peach plants.

scholarly journals Physico-chemical properties of different formulations of pequi pulp with milk

2020 ◽  
Vol 11 ◽  
pp. e3297
Author(s):  
Maria Suiane Moraes ◽  
Janaina Almeida Dantas Esmero ◽  
Rossana Maria Feitosa De Figueirêdo ◽  
Alexandre José de Melo Queiroz
Keyword(s):  
Water Activity ◽  
Chemical Properties ◽  
Chemical Characterization ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Soluble Solids ◽  
Physical Chemical ◽  
Physico Chemical ◽  
Whole Milk ◽  
Total Titratable Acidity

The objective of this work was to perform the physical-chemical characterization of different formulations of the pequi pulp with the addition of different concentrations of whole milk, in order to identify promising products for commercial use. Three formulations of pequi pulp with whole milk were prepared: PL1- 90% pequi pulp and 10% milk, PL2 - 70% pequi pulp and 30% milk, PL3 - 50% pequi pulp and 50% milk. The formulations were evaluated for physical and physical-chemical parameters of color, water activity, water content, ash, total soluble solids (SST), pH, total titratable acidity (ATT), SST/ATT ratio, ascorbic acid, proteins, lipids, total, reducing and non-reducing sugars. The data obtained were subjected to analysis of variance (ANOVA) and comparison between means by the Tukey test at 5% probability. Among the three tested formulations, the best results were obtained for PL3, where it presented lower total titratable acidity, water activity, red intensity, yellow intensity and chromaticity, however, higher content of total soluble solids, ratio SST/ATT, ash, lipids, sugars (total, dimmer and non-dimmer), luminosity and tint angle. The inclusion of milk in the pequi pulp changed the physical and physical-chemical characteristics of the pulp, and it can be an alternative to add nutritional value to the fruit and consequently a promising product for the market.

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