Quality and antioxidant activity of 'Isabel Precoce' grapes installed on different training systems and rootstocks in warmer seasons in a tropical semi-arid region

Production system and environmental factors might cause changes in grapevine physiology, affecting grape yield, quality, phenolic composition, and antioxidant potential. The aim of this study was to characterize the quality and antioxidant potential of 'Isabel Precoce' grapes on different training systems and rootstocks in warmer seasons, in tropical conditions. Experimental design was in randomized blocks, in sub-subplots through time and four replicates. Three training systems (overhead trellis, lyre and vertical shoot positioning - VSP) and two rootstocks (‘IAC 572’ and ‘IAC 766’) were studied in the production cycles from July to October, 2017 and from July to October, 2018 in the Submedium of São Francisco Valley. Berry weight; cluster weight; color attributes; berry resistance to compression (COMP); titratable acidity; soluble solids; total soluble sugars (TSS); yellow flavonoids; total anthocyanins; total extractable polyphenols and antioxidant activity by ABTS●+ and DPPH● free radical capture methods were analyzed. Lyre and VSP resulted on increases of 6% and 17% in berry weight and COMP, respectively. Moreover, differences between production cycles were more intense for both variables. In production cycle from July to October 2017, lyre and VSP systems provided increases of 2 g 100 g-1 of TSS and higher anthocyanin and yellow flavonoid contents, while grapes trained in VSP had higher antioxidant activity. Mean values of anthocyanins reached 529.34 mg 100 g-1 in grapes harvested in October 2017. Some grape quality and chemical components showed high variation in warmer seasons of sucessive years, according to training system or rootstock and their combinations

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Training systems, rootstocks and climatic conditions influence quality and antioxidant activity of ‘BRS Cora’ grape

Acta Scientiarum Agronomy ◽

10.4025/actasciagron.v43i1.49054 ◽

2020 ◽

Vol 43 ◽

pp. e49054

Author(s):

Rayssa Ribeiro da Costa ◽

Talita de Oliveira Ferreira ◽

Maria Auxiliadora Coêlho de Lima

Keyword(s):

Antioxidant Activity ◽

Titratable Acidity ◽

Climatic Conditions ◽

Training System ◽

Soluble Solids ◽

Training Systems ◽

Production Factors ◽

Tropical Conditions ◽

Production Cycles ◽

Lower Variation

Environmental and production factors might affect grapevine physiology. Estimating these effects is essential for planning the harvest and predicting the quality of grapes. The aim of this study was to characterize the quality and antioxidant potential of ‘BRS Cora’ grapes with different training systems and rootstocks in production cycles of the second half of the year under tropical conditions. The experimental design was randomized blocks with sub-subdivided plots over time. Three training systems and two rootstocks were studied in production cycles referring to the second halves of 2017 and 2018. In 2017, the grapes of plants trained with lyre and vertical shoot positioning (VSP) had the highest soluble solids and sugars contents, and in 2018, this response occurred with the overhead trellis system. There was lower variation in titratable acidity between cycles of grapevines trained with VSP and lyre, as well as in those grafted onto ‘IAC 572’. In 2018, lyre with ‘IAC 572’ promoted higher pigment accumulation. Climatic conditions in 2017 provided a higher accumulation of polyphenols and antioxidant activity in grapes of plants trained with lyre with ‘IAC 766’. The efficiency of the training system within each cycle, associated with the effect of the rootstock, resulted in differentiated responses according to climatic conditions.

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Quality and antioxidant potential of ‘BRS clara’ and ‘Arizul’ grapes influenced by rootstocks in a tropical region

Ciência e Agrotecnologia ◽

10.1590/1413-7054201943000219 ◽

2019 ◽

Vol 43 ◽

Author(s):

Alanne Lucena de Brito ◽

Wilyanne Monique Danôa Bonfim ◽

Eugenio Ribeiro de Andrade Neto ◽

Maria Auxiliadora Coêlho de Lima

Keyword(s):

Titratable Acidity ◽

Antioxidant Potential ◽

Soluble Solids ◽

Production Cycle ◽

Tropical Region ◽

Northeast Brazil ◽

Middle Region ◽

Table Grapes ◽

Productive Potential ◽

Production Cycles

ABSTRACT Seedless table grapes cultivars have been studied in the Sub-middle region of São Francisco Valley at northeast Brazil. For that region, it is important to identify cultivars with productive potential, better quality and efficiency, minimizing the expenses in terms of inputs and workforce, when compared to traditional cultivars. Specifically, the objective of this study was to determine the influence of different rootstocks on the quality and on the antioxidant potential of BRS Clara and Arizul table grapes cultivars of two production cycles. The experimental area belongs to the Experimental Field of Bebedouro/Embrapa Semiárido, located in the sub-middle region of São Francisco Valley, in Petrolina - PE, northeast Brazil. Both BRS Clara and Arizul cultivars were analyzed individually using IAC 313, IAC 572, IAC 766, SO4, Paulsen 1103 and Harmony rootstocks, during production cycles from October/2016 to February/2017 and from March/2007 to June/2017. The experimental design was planned in randomized blocks, in a 2 (production cycle) x 6 (rootstock) factorial, with three replications each. More favorable conditions to quality for ‘BRS Clara’ grapes, as evidenced by higher berry mass, lower soluble solids (SS)/titratable acidity (TA) ratio and higher antioxidant activity, were observed after the March-June, 2017 harvest, especially from scions grafted onto IAC 572, SO4 and Harmony. The Arizul cultivar was characterized by better quality after the March-July, 2017 harvest, showing higher berry mass, lower acidity and lower SS/TA ratio and a better color mainly in SO4 and Harmony rootstocks. Therefore, an appropriate rootstock enhances the quality of the grapes.

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Quality and antioxidant potential of ‘BRS Magna’ grapes harvested in the first half of the year under different training systems and rootstocks in a tropical region

Ciência e Agrotecnologia ◽

10.1590/1413-7054201943029518 ◽

2019 ◽

Vol 43 ◽

Author(s):

Talita de Oliveira Ferreira ◽

Rayssa Ribeiro da Costa ◽

Débora Tamara Félix ◽

Eugenio Ribeiro de Andrade Neto ◽

Maísa de Macedo Cruz ◽

...

Keyword(s):

Antioxidant Activity ◽

Experimental Design ◽

Production System ◽

Training System ◽

River Valley ◽

Antioxidant Potential ◽

Tropical Region ◽

Training Systems ◽

Irrigated Crops ◽

Production Cycles

ABSTRACT The Submedium São Francisco Valley is renowned for its particular conditions for cultivating grapes for different uses. The production of grapes for juice is relatively recent, and thus, knowledge is still limited on components of the production system. The aim of this study was to characterize the quality and antioxidant activity of ‘BRS Magna’ grapes in irrigated crops of the Submedium São Francisco River Valley under the influence of training systems and rootstocks, in production cycles of the first half of the year. The experiment was conducted in the Experimental Field of Bebedouro/Embrapa Semiárido, in Petrolina, Pernambuco, Brazil. The following were studied: overhead trellis, lyre, and vertical shoot positioning (VSP) systems and rootstocks ‘IAC 572’ and ‘IAC 766’, in the production cycles corresponding to the first halves of 2017 and 2018. Experimental design was in randomized blocks, with sub-subplots through time and four replicates. Overall, responses depended on training systems, rootstocks, and production cycles, which determined specific traits of the grapes. Production in the first half of 2018 was characterized by high anthocyanin contents, high total extractable polyphenols, and higher antioxidant activity, and responses were differentiated according to training system and rootstock. Plants trained to overhead trellis and grafted on ‘IAC 572’ had higher accumulation of total extractable polyphenols and antioxidant activity in berries. Plants trained to VSP had increased sugar, yellow flavonoid, and anthocyanin contents in berries while lyre training system led to higher bunch mass.

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The Influence of Time and Storage Conditions on the Antioxidant Potential and Total Phenolic Content in Homemade Grape Vinegars

Molecules ◽

10.3390/molecules26247616 ◽

2021 ◽

Vol 26 (24) ◽

pp. 7616

Author(s):

Justyna Antoniewicz ◽

Joanna Kochman ◽

Karolina Jakubczyk ◽

Katarzyna Janda-Milczarek

Keyword(s):

Antioxidant Activity ◽

Fermentation Process ◽

Storage Conditions ◽

Antioxidant Potential ◽

Soluble Solids ◽

Total Phenolic ◽

Fermented Foods ◽

Polyphenol Content ◽

Spontaneous Fermentation ◽

Potential Health

Fermented foods have been an integral part of the cuisines of almost all cultures in the world. In recent years, they have gained ground again, mainly due to their potential health benefits. One such product is grape vinegar, which apart from characteristic taste, is also a source of compounds with antioxidant activity. The aim of the study was to determine the changes in the antioxidant potential and the content of polyphenols that occur during the storage of grape vinegar obtained by spontaneous fermentation. The research material consisted of vinegar made from different white grape varieties grown in Poland. For each variety, two variants were prepared: with and without the addition of sugar in the fermentation process. The antioxidant potential, polyphenol content, soluble solids content and pH were monitored both during the two-month fermentation process and the subsequent 6-months storage under various conditions. Storage conditions and time of the storage affected the antioxidant activity and polyphenol content. The content of these compounds was also influenced by the variety of grapes used as well as the method of vinegar preparation.

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Performance of mini-tomato hybrids in different training systems with different number of stems

Horticultura Brasileira ◽

10.1590/s0102-053620170319 ◽

2017 ◽

Vol 35 (3) ◽

pp. 428-433

Author(s):

Pablo F Vargas ◽

Leonardo S Duarte ◽

Edgard HC Silva ◽

Amanda C Zecchini ◽

Renato S Soares ◽

...

Keyword(s):

Block Design ◽

Fruit Weight ◽

Soluble Solids ◽

Production Cycle ◽

Training Systems ◽

Randomized Block Design ◽

Crop Cycle ◽

Chlorophyll Index ◽

Number Of Stems ◽

Fruit Diameter

ABSTRACT At present, Brazil is among the world's largest tomato producers. This production is directed both for the industry and for fresh consumption. Among the different tomato groups, production of mini-tomatoes has grown in recent years because of their high commercial value and mainly greater price stability. However, there are few studies investigating the proper management of this group, as it is recent in the country. The aim of the present study was to evaluate the viability of mini-tomato hybrids in different training systems, in greenhouse conditions. The experiment was set as a randomized block design in a 2×2×4 factorial arrangement with two numbers of stems (one and two stems per plant), two training systems [conventional (vertical) and horizontal], and four hybrids [AF 18196 (Sakata Seed); AF 13106 (Sakata Seed); Nina (Takii Seed) and Cocktail Mascot (Agristar/Top Seed Premium)], with three replicates and four plants per plot in the usable area. The evaluated variables were production per plant, fruit weight, transverse and longitudinal fruit diameter, number of fruits per plant, number of clusters per plant, number of fruits per cluster, precocity, production cycle, chlorophyll index, soluble solids, and crop cycle. The most promising hybrids are AF 13106 (2.71 kg/plant), AF 18196 (2.63 kg/plant) and Mascot (2.38 kg/plant), managed with two stems (2.63 kg/plant), in the vertical system (2.94 kg/plant).

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Physicochemical and Antioxidant Changes in Six Alabama-grown Blackberry Cultivars

HortScience ◽

10.21273/hortsci.39.4.807c ◽

2004 ◽

Vol 39 (4) ◽

pp. 807C-807

Author(s):

Raymond H. Thomas ◽

Floyd M. Woods* ◽

William A. Dozier ◽

Robert C. Ebel ◽

Monte Nesbitt ◽

...

Keyword(s):

Antioxidant Activity ◽

Ascorbic Acid ◽

Soluble Sugars ◽

Titratable Acidity ◽

Natural Antioxidants ◽

Soluble Solids ◽

Total Sugars ◽

Total Antioxidant ◽

Initial Ph ◽

Excellent Source

Blackberries are an excellent source of natural antioxidants. Fully ripened fruit of `Apache', `Arapaho', `Chester', `Loch Ness', `Navaho', and `Triple Crown' thornless blackberries were evaluated for their physicochemical and antioxidative activity. Differences in initial pH, titratable acidity (TA), total soluble solids (TSS), TSS/TA ratio and soluble sugars (reducing sugar, sucrose, and total sugars) differed among cultivars. Differences among cultivars with respect to reduced ascorbic acid (AA) were established, but there were no differences in either oxidized ascorbic acid (DHA) or total ascorbic acid (TAA) content. Antioxidant activity was determined by ABTS radical cation procedure for fractionated crude fruit extracts and the cultivars varied in the parameters evaluated. Hydrophilic antioxidant activity (HAA) was not different among cultivars evaluated. In contrast, lipophilic antioxidant activity (LAA) and total antioxidant activity (TAA) differed. The results obtained in this study indicate that Alabama-grown blackberries vary in their quality indices and are an excellent source of natural antioxidants. Information compiled will assist in marketing, handling, postharvest storage of these fruit and serve as a guide to partial fulfillment of recommended daily dietary requirements.

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TRAINING SYSTEM AFFECTS PERFORMANCE OF TABLE GRAPE CULTIVARS

HortScience ◽

10.21273/hortsci.27.11.1178d ◽

1992 ◽

Vol 27 (11) ◽

pp. 1178d-1178

Author(s):

Dwight Wolfe ◽

Gerald R. Brown

Keyword(s):

Table Grape ◽

Training System ◽

The Other ◽

Soluble Solids ◽

Training Systems ◽

Berry Weight ◽

Weight Number ◽

Grape Cultivars

Each of the grape cultivars [Vitis species, (L) Batch], `Concord', `Himrod', `Challenger', `Reliance', `Glenora', `Moored', planted June 1983, and `Mars' planted Spring, 1987, was trained to the 4-cane Kniffin (KN) and the Geneva Double Curtain (GDC) systems. Yield per vine, pruning weight, number of nodes, cluster weight, number of berries per cluster, berry weight, and percent soluble solids were recorded. Vines from `Reliance' trained to the KN system produced fruit with significantly higher percent soluble solids than did vines trained to the GDC. No significant differences in percent soluble solids were observed between the two training systems for the other cultivars. `Concord' produced more kg/vine of pruning weight when trained to the KN system than when trained to the GDC. Pruning weight did not differ significantly between the two training systems for the other cultivars. Cultivars more productive (yield/vine) on the GDC trellis were `Concord', `Himrod', `Reliance' and `Moored' whereas `Challenger' was more productive when vines were trained to the KN system. No differences between the two training systems were observed for `Glenora' or `Mars'.

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CARBOHYDRATES, PHENOLIC COMPOUNDS AND ANTIOXIDANT ACTIVITY IN PULP AND PEEL OF 15 BANANA CULTIVARS

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452016090 ◽

2016 ◽

Vol 38 (4) ◽

Cited By ~ 10

Author(s):

CÉSAR FERNANDES AQUINO ◽

LUIZ CARLOS CHAMHUM SALOMÃO ◽

SÔNIA MACHADO ROCHA RIBEIRO ◽

DALMO LOPES DE SIQUEIRA ◽

PAULO ROBERTO CECON

Keyword(s):

Antioxidant Activity ◽

Phenolic Compounds ◽

Soluble Sugars ◽

Antioxidant Potential ◽

Ripening Stage ◽

Sample Unit ◽

Ripening Stages ◽

Climacteric Stage ◽

Carbohydrate Contents

ABSTRACT The aim of this study was to quantify and compare the levels of carbohydrates and phenolic compounds and the antioxidant activity in the pulp and peel of 15 banana cultivars in two ripening stages. Four bunches per cultivar were harvested in the pre-climacteric stage, six fruits were used by sample unit. Fruits were analyzed in the pre-climacteric stage and after ripening. Total, reducing and non-reducing soluble sugars, starch, phenolic compounds and antioxidant activity were evaluated. Cultivar and ripening stage influenced all characteristics analyzed. Unripe pulp and peel had small percentage of sugar, but high percentage of starch, especially ‘Terrinha’ and ‘Marmelo’ cultivars. AAB and ABB cultivars presented the highest percentages of starch, when compared to AA and AAA cultivars. For the phenolic compounds, the highest content was observed in ripe peel, followed by ripe pulp and unripe peel and pulp, highlighting ‘Terrinha’ cultivar in all parts and stages evaluated. The antioxidant potential was higher in ripe peel, followed by unripe peel, ripe and unripe pulp. Fruits of Terrinha, Marmelo, Maçã, Ouro and Caru-Verde cultivars showed the highest carbohydrate contents, and phenolic compounds or antioxidant activity, justifying future actions in the expansion of planting and consumption of these fruits.

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Physico-chemical and sensory properties of strawberries (Fragaria x ananassa) grown in conventional and hydroponic systems

Australian Journal of Crop Science ◽

10.21475/ajcs.19.13.05.p1229 ◽

2019 ◽

pp. 671-677

Author(s):

Maria Lucilania Bezerra Almeida ◽

Carlos Farley Herbster Moura ◽

Renato Innecco ◽

Deborah dos Santos Garruti ◽

Fábio Rodrigues de Miranda ◽

...

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Physicochemical Properties ◽

Production Systems ◽

Soluble Sugars ◽

Titratable Acidity ◽

Sensory Properties ◽

Soluble Solids ◽

Cultivation Systems ◽

Overall Acceptability

Strawberry is considered a fruit of great commercial interest in many countries due to its color, aroma, flavor, and nutritional properties. However, it is possible that the differences among the cultivation systems could affect the production of photoassimilates in the plant and, consequently, their partitioning into the fruits composition, influencing its quality. Therefore, the aim of this work was to evaluate the influence of the cultivation systems (hydroponics in gutters and slabs, and conventional) and genotype on the physicochemical properties, antioxidant and sensory activity in strawberry fruits. The experiment was carried out using a completely randomized design in a factorial 4 × 3 scheme with four replications, represented by trays of approximately 200 g of fruit. In the Laboratory, the strawberries (cv. Oso Grande, Festival, Camarosa, and Albion) were analyzed for their physicochemical properties and sensory variables: titratable acidity (TA), soluble solids (SS), SS/TA ratio, soluble sugars, vitamin C, polyphenol, and antioxidant activity. It was observed that cultivation systems and genotype studied influence the antioxidant activity, physicochemical and sensory properties of strawberries. The conventional system shows higher values for physicochemical variables and antioxidant activity, with cultivar variation within each system. The antioxidant activity attributed to strawberry is strongly related to the content of extractable polyphenols and vitamin C. Regarding the sensory properties, cultivars show good overall acceptability in all production systems studied, no presenting difference among systems.

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Spectra evolution over on-vine holding of Italia table grapes: prediction of maturity and discrimination for harvest times using a Vis-NIR hyperspectral device

Journal of Agricultural Engineering ◽

10.4081/jae.2017.639 ◽

2017 ◽

Vol 48 (2) ◽

pp. 109 ◽

Cited By ~ 7

Author(s):

Francesca Piazzolla ◽

Maria Luisa Amodio ◽

Giancarlo Colelli

Keyword(s):

Antioxidant Activity ◽

Near Infrared ◽

Prediction Models ◽

Ph Value ◽

Titratable Acidity ◽

Soluble Solids ◽

Harvest Time ◽

Table Grapes ◽

Grape Quality

Measurement of certain grape quality parameters (sugars, acidity, and pH-value) is essential for the determination of the optimum harvest time. Non-destructive analytical techniques, including near infrared (NIR) spectroscopy, can be valid alternatives to traditional analytical methods for the determination of maturity indexes, enabling the possibility of on-field applications. This work aims to study the reliability to monitor spectra changes related with ripening of table grapes and to select optimal wavelengths for the discrimination of bunches from different harvests, in addition to the prediction of total soluble solids, pH, titratable acidity, phenols and antioxidant activity of table grapes. Grapes were harvested four times from the same plants at day 0 (I HT), and after 11 (II HT), 27 (III HT) and 48 (IV HT) days. Spectra were acquired from the images obtained using a spectral scanner Vis-NIR (ver 1.4.; DV Srl, Padova, Italy), with a detector in the region between 400-1000 nm principal component analysis was used to remove outliers followed by spectra pre-treatment. The best prediction model was achieved for soluble solids with the regression coefficient values of 0.91 for calibration and 0.88 for validation followed by titratable acidity (0.71 and 0.78) and antioxidant activity (0.68 and 0.62). In addition an excellent correlation was observed between spectra and days before harvest (R2 of 0.98 for calibration and prediction models) indicating that is possible to relate spectra changes with ripening, leading also to the effective discrimination of the fruits from the different harvest times. The results showed that this technique may be a valid support to select the optimal harvest time also based on the prediction of the maturity related constituents.

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