scholarly journals Grape yield, and must compounds of 'Cabernet Sauvignon' grapevine in sandy soil with potassium contents increasing

2016 ◽  
Vol 46 (8) ◽  
pp. 1376-1383 ◽  
Author(s):  
Marlise Nara Ciotta ◽  
Carlos Alberto Ceretta ◽  
Lincon Oliveira Stefanello da Silva ◽  
Paulo Ademar Avelar Ferreira ◽  
Claudia Kaehler Sautter ◽  
...  
Keyword(s):  
Soluble Sugar ◽  
Titratable Acidity ◽  
Cabernet Sauvignon ◽  
Content Increase ◽  
Exchangeable K ◽  
Total Soluble Sugar ◽  
Full Flowering ◽  
Total Titratable Acidity ◽  
Abstract Content ◽  
Grape Yield

ABSTRACT: Content of exchangeable potassium (K) in t soil may influence on its content in grapevines leaves, grape yield, as well as, in must composition. The study aimed to assess the interference of exchangeable K content in the soil on its leaf content, production and must composition of 'Cabernet Sauvignon' cultivar. In September 2011, in Santana do Livramento (RS) five vineyards with increasing levels of exchangeable K in the soil were selected. In the 2012/13 and 2013/14 harvests, the grape yield, yield components, total K content in the leaves in full bloom and berries veraison were evaluated. Values of total soluble sugar (TSS), pH, total titratable acidity (TTA), total polyphenols and anthocyanins were evaluated in the must. Exchangeable K content increase in soil with sandy surface texture increased its content in leaves collected during full flowering and in berries and must pH; however, it did not affect production of the 'Cabernet Sauvignon'.

scholarly journals Impact of Grapevine Red Blotch Disease on Cabernet Sauvignon and Merlot Wine Composition and Sensory Attributes

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3299
Author(s):  
Raul Cauduro Girardello ◽  
Monica L. Cooper ◽  
Larry A. Lerno ◽  
Charles Brenneman ◽  
Sean Eridon ◽  
...  
Keyword(s):  
Descriptive Analysis ◽  
Soluble Sugar ◽  
Viral Disease ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Cabernet Sauvignon ◽  
Total Soluble Sugar ◽  
Primary And Secondary Metabolites ◽  
Wine Composition ◽  
The Impact

Grapevine red blotch disease (GRBD) is a recently identified viral disease that affects grapevines. GRBD has been shown to impact grapevine physiology and grape composition by altering specific ripening events. However, no studies have been reported on the impact of GRBD on wine composition and its sensory attributes. This study evaluated the impact of GRBD on wine primary and secondary metabolites, in addition to its sensory properties, when making wines from Cabernet Sauvignon and Merlot grapes during two seasons. Wines made with GRBD-impacted fruit were lower in ethanol content when compared to wines made with grapes from healthy grapevines. This was attributed to the lower total soluble sugar (TSS) levels of diseased grapes due to delayed ripening at harvest. GRBD impacted wine phenolic composition by decreasing anthocyanin concentrations and increasing flavonol concentrations in some instances. Additionally, proanthocyanidin concentrations were also consistently higher in GRBD wines compared to wines made from healthy fruit. Descriptive analysis demonstrated that GRBD can impact wine style by altering aroma, flavor, and mouthfeel attributes. However, the extent of GRBD impact on wine composition and sensory properties were site and season dependent.

Regulation of 1-MCP-Treated Banana Fruit Quality by Exogenous Ethylene and Temperature

2004 ◽  
Vol 10 (1) ◽  
pp. 15-20 ◽  
Author(s):  
W. Jiang ◽  
M. Zhang ◽  
J. He ◽  
L. Zhou
Keyword(s):  
Starch Content ◽  
Soluble Sugar ◽  
Titratable Acidity ◽  
Peak Height ◽  
Soluble Solids ◽  
Banana Fruit ◽  
Total Soluble Sugar ◽  
Low Temperature Storage ◽  
Musa Sp ◽  
Temperature Storage

Ripe green banana (Musa sp., AAA group, cv. Zhonggang) fruits treated with 1-methylcyclopropene (1-MCP) significantly delayed the peaks of respiration rate and ethylene production but did not reduce the peak height. Mature banana fruits were also treated with 1-MCP for 24 h at 20 C and then exposed to 50 mL/L ethylene or stored at different temperatures to analyse the effects of external added ethylene. Reductions in firmness, titratable acidity (TA) and starch content (SC) of banana fruits were remarkably delayed by 1-MCP treatment. 1-MCP treatment also delayed the increase of total soluble sugar (TSS) and soluble pectin (SP) contents. Soluble solids (SS) content in the 1-MCP-treated fruit remained almost unchanged during the first 10 days of storage at 20 C. No significant differences in TA, TSS, SP and SS levels were observed between the fruit treated with 1-MCP alone and the fruit treated with 1-MCP plus ethylene. The 1-MCP effects on all the parameters related to banana ripening were enhanced by low temperature storage and reduced by high temperature storage.

Grapevine nutritional diagnosis methods for the « Serra Gaúcha » viticultural region, Brazil

OENO One ◽  
2003 ◽  
Vol 37 (1) ◽  
pp. 15
Author(s):  
J.-C. Fráguas ◽  
Alberto Miele ◽  
E. B. Silva
Keyword(s):  
South Africa ◽  
South African ◽  
Rio Grande ◽  
Titratable Acidity ◽  
Mineral Nutrients ◽  
Critical Threshold ◽  
Cabernet Sauvignon ◽  
Rio Grande Do Sul ◽  
Total Titratable Acidity ◽  
System Data

<p style="text-align: justify;">The methods of grapevine nutritional diagnosis used in Michigan, California, and South Africa were evaluated with the objective to assess and adjust values of these methods for the Brazilian conditions. The study was carried out in 53 vineyards in the Serra Gaúcha viticultural region, State of Rio Grande do Sul, Brazil, from 1995/96 to 1997/98 (25 of these vineyards were Cabernet Sauvignon and 28 Italie Riesling). All these vineyards were conducted in the pergola system. Data of yield, °Brix, total titratable acidity, density, and pH of the grape must, the concentration of macro- and micro nutrients in the leaves as well as data from soil analyses were assessed. The yield of each vineyard and the concentration of the mineral nutrients in the tissue were correlated. The final adjustments were made by means of the method of the critical threshold using the NCRIz criterion. The method of California was the less precise as it neither establishes defined border values for the sufficiency level nor takes some nutrients into account. The method of Michigan needed few adjustments because of its origin; for this it may be considered viable for the nutritional diagnosis, mainly for American cultivars. Out of the three methods, the South African proved to be the most appropriate for diagnosing the nutritional status of the grapevine cultivated in the Serra Gaúcha, because it did not need adjustments for most nutrients.</p>

scholarly journals Physical, chemical, microbiological and sensory carachterization of Manipuça jellies for municipal school meals of Fortaleza-CE

2018 ◽  
Vol 40 (1) ◽  
Author(s):  
Lidiane Medeiros Freitas Azevedo ◽  
Eliseu Marlônio Pereira de Lucena ◽  
Oriel Herrera Bonilla ◽  
Márcia Régia Souza da Silveira ◽  
Antenor Silva Júnior
Keyword(s):  
Public Schools ◽  
Soluble Sugar ◽  
Titratable Acidity ◽  
Botanical Garden ◽  
Physicochemical Analysis ◽  
Soluble Solids ◽  
School Meals ◽  
School Students ◽  
Total Soluble Sugar ◽  
Physical Chemical

Abstract This research aimed to characterize the physical, chemical, microbiological and sensory characterization of manipuçá (Mouriri cearensis Huber) jellies as an alternative to school meals of an elementary public school in Fortaleza-CE. The fruits, in maturation stages 4 (mature) and 5 (senescent), were collected in the Botanical Garden of São Gonçalo, in São Gonçalo do Amarante-CE. Initially, the fruits of manipuça were processed and to obtain the jelly five formulations were proposed (treatments) containing different proportions of water and pulp (4:1-F1; 4:2-F2, 4:3-F3: 4:4-F4; and 4:5-F5), which then they were subjected to physicochemical analysis (total soluble solids-TSS; total titratable acidity-TTA; pH; TSS/TTA ratio-SAR; vitamin C-CV; total soluble sugar-TSSu, reducing sugar-RS and non-reducing sugars-NRS), microbiological (coliforms at 35°C-CF) and sensory (aroma-A; color-C; appearance-AP; flavor-F; texture-T; and the purchaser intends-PI). We used the Assistat program in statistical analyzes. The results showed the following variation in the five formulations: TSS (°Brix) - 72 (F1) to 85.12 (F5); TTA (%) - 0.95 (F1) to 0.54 (F5); pH - 4.09 (F1) to 4.30 (F5); SAR - 75.22 (F1) to 156.20 (F5); CV (mg / 100g) - 7.40 (F2) to 14.19 (F5); TS (%) - 63.97 (F1) to 79.73 (F5); RS (%) - 44.53 (F2) to 66.98 (F5); NRS (%) - 12.47 (F1) to 32.98 (F4); absence of CF; for A, C, AP, F and T, F5 was greater than F2, F3, F4 and equals to F1; and for PI, F5 was superior to all. In conclusion: the F5 is sweeter and less acidic, however, the F1 is less sweet and more acidic; the F5 obtained greater acceptance among students, so this is the ideal formulation to use as an alternative to school meals for primary school students from public schools in Fortaleza-CE.

scholarly journals Pruning and dormancy breaking make two sustainable grape-cropping productions in a protected environment possible without overlap in a single year

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7412
Author(s):  
Zhipeng Qiu ◽  
Guangzheng Chen ◽  
Dongliang Qiu
Keyword(s):  
Soluble Sugar ◽  
Titratable Acidity ◽  
Anthocyanin Content ◽  
Dormancy Breaking ◽  
Total Soluble Sugar ◽  
Winter Crop ◽  
Bud Breaking ◽  
One Year ◽  
Summer Fruit ◽  
Summer Crop

In table grape production, protected cultivation in a vineyard in different regions and climates is currently a commonly used practice. The aims of this study were to provide key approaches to sustainably produce two crops of grape without overlap under protected environment in a single year. Spraying the degreening chemicals 400 mg/L ethephon +0.4% sulfur at 4 weeks of vine nutrient restoration after the harvest of the summer crop resulted in the highest percentage of sprouting inflorescence. The retention of 7–10 buds in the base shoot results in the high percentage of sprouting inflorescence. Bud breaking chemicals with 2.5% hydrogen cyanamide+2.0% Baoguoliang +0.02% Shenzhonggen significantly led to sprout inflorescence more efficiently. Cluster and fruit weights of the winter crop weighed significantly less than those of the summer crop. However, the contents of total soluble sugar and titratable acidity were higher than those of the summer crop. The anthocyanin content in the peel of the winter fruit was significantly higher than that in the summer fruit. The yield of the winter crop is controlled by the yield of the summer fruit. To maintain the stability of the two crops for one year, the ratio of yield in the winter to the summer should be controlled from 2:5 to 3:5 to ensure the sustainable production of two crops without overlap for ‘Summer Black’ grape. These results may help grape growers to overcome the impacts of rainy and hot climates with the help of protected facilities, and it could enable the use of solar radiation and heat resources in subtropical and tropical areas.

scholarly journals Effect of cluster and berry thinning on Merlot and Cabernet Sauvignon wines composition

2014 ◽  
Vol 32 (No. 5) ◽  
pp. 470-476 ◽  
Author(s):  
M. Karoglan ◽  
M. Osrečak ◽  
L. Maslov ◽  
B. Kozina
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Cabernet Sauvignon ◽  
Total Phenols ◽  
Wine Quality ◽  
Cluster Thinning ◽  
Strongly Connected ◽  
The Mean ◽  
Grape Yield

The manipulation of grape yield is widely practised to improve grape and wine quality. Merlot and Cabernet Sauvignon vines in the Zagreb vineyard hills, north-western Croatia, were subjected to three crop removal treatments [cluster thinning (CT), berry thinning (BT), CT+BT, and untreated control] in a randomised block design experiment. CT and CT+BT treatments reduced the grape yield but increased the mean cluster weight compared to control vines. BT alone had a little effect on the yield components. Control grapes generally had the lowest soluble solids (&deg;Oe) and highest titratable acidity (g/l). In most cases, control wines had the lowest total phenols, flavan-3-ols, and anthocyanin concentrations, while CT+BT treatment had the highest ones followed by CT treatment. It was concluded that CT+BT produced wines with generally increased total phenols, flavan-3-ols, and anthocyanins, as well as many individual phenolic compounds. Thus, grape yield per vine seems to be strongly connected with the grape and wine compositions. The final cost-effectiveness of this canopy interventions still remains questionable. &nbsp;

scholarly journals Water Relations, Growth, and the Composition of `Braeburn' Apple Fruit under Deficit Irrigation

1996 ◽  
Vol 121 (2) ◽  
pp. 286-291 ◽  
Author(s):  
T.M. Mills ◽  
M.H. Behboudian ◽  
B.E. Clothier
Keyword(s):  
Water Potential ◽  
Water Deficit ◽  
Water Relations ◽  
Deficit Irrigation ◽  
Soluble Sugar ◽  
Titratable Acidity ◽  
Sampling Period ◽  
Soluble Solids ◽  
Sugar Concentration ◽  
Total Soluble Sugar

Three-year-old `Braeburn' apple trees (Malus domestica Borkh.) on MM106 rootstock were studied in a glasshouse to assess the effects of deficit irrigation on fruit growth, water relations, composition, and the vegetative growth of the trees. Trees were assigned to one of three treatments. The control (C) was fully watered. The first deficit treatment (D1) was deficit-irrigated from 55 days after full bloom (DAFB) until final harvest at 183 DAFB. The second deficit treatment (D2) was deficit-irrigated from 105 to 183 DAFB. Compared to C, the D1 and D2 trees developed a lower photosynthetic rate, leaf water potential (Ψl), and stomatal conductance (gs) during the stress period. Trunk-circumference growth was reduced in both D1 and D2 trees, but leaf area and shoot length were reduced in D1 only. Total soluble solids increased in both D1 and D2 fruit. Fructose, sorbitol, and total soluble sugar concentrations were higher in D1 fruit than in C and D2. Titratable acidity and K+ levels were higher in D1 fruit than C and D2. For D1, lowering of fruit water potential (Ψw) was accompanied by a decrease in osmotic potential (Ψs), and therefore turgor potential (Ψp) was maintained throughout the sampling period. Regardless of fruit turgor maintenance, the weight of D1 fruit was reduced from 135 DAFB. Weight, sugar concentration, and water relations of D2 fruit were not affected by deficit irrigation. This indicates that fruit water relations and sugar concentration are modified if water deficit is imposed from early in the season. However, if water deficit is imposed later in the season it has less impact on the composition and water relations of the fruit.

scholarly journals FORMULAÇÕES DE NÉCTARES DE FRUTAS NATIVAS DAS REGIÕES NORTE E NORDESTE DO BRASIL

2000 ◽  
Vol 18 (2) ◽  
Author(s):  
MEN DE SÁ MOREIRA DE SOUZA FILHO ◽  
JANICE RIBEIRO LIMA ◽  
RENATA TIEKO NASSU ◽  
CARLOS FARLEY HERBSTER MOURA ◽  
MARIA DE FÁTIMA BORGES
Keyword(s):  
Vitamin C ◽  
Reducing Sugars ◽  
Soluble Sugar ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Sugars ◽  
Total Soluble Solids ◽  
Total Soluble Sugar ◽  
Industrial Processing ◽  
Aroma Characteristics

O presente trabalho visou avaliar formulações de néctares de frutas (araçáboi, ata, cajá, camucamu, ciriguela, mangaba e sapoti) nativas das regiões Norte e Nordeste do Brasil. As formulações foram desenvolvidas a partir da polpa dos frutos, empregandose de 30 a 35% de polpa, conforme as características de sabor e aroma. Para cada fruto foram testados dois níveis de sólidos solúveis, variando de 12 a 16 ºBrix, ajustados com adição de sacarose. Os frutos que apresentaram baixos níveis de acidez tiveram seus néctares corrigidos com adição de ácido cítrico, de maneira que a acidez ficasse entre 0,25 e 0,30%. As formulações foram avaliadas por meio de análises de pH, acidez total titulável, vitamina C, açúcares solúveis totais e redutores, sólidos solúveis totais, razão ºBrix/acidez e análise sensorial. De forma geral, somente os sólidos solúveis totais e os açúcares totais apresentaram diferenças estatísticas entre as formulações de cada fruta, o que se justifica pela adição de sacarose no desenvolvimento das formulações. A relação ºBrix/acidez mantevese na faixa de 20 a 60 para todos os néctares. Os maiores níveis de vitamina C foram encontrados nos néctares de camucamu (455,2 e 470,5 mg/ 100 g) e mangaba (48,4 e 52,7 mg/100 g), enquanto os demais apresentaram níveis inferiores a 20 mg/100 g. A exceção do camucamu, todos os atributos sensoriais para os outros néctares receberam notas superiores a 6,0. Os resultados preliminares evidenciaram boa aceitação e possibilidades promissoras no aproveitamento dos frutos. Abstract This work aimed to evaluate nectar formulas from tropical fruits (aracaboi, sugar apple, red mombin, camucamu, yellow mombin, mangaba, sapoti) indigenous of North and Northeast regions of Brazil. The formulations were developed from fruit pulp using 30 to 35% according to their flavor and aroma characteristics. For each fruit two levels of total soluble sugar were used ranging from 12 to 16 ºBrix and adjusted by sucrose addition. Citric acid was added in fruits nectars which had low acidity in order to reach 0.25 to 0.30% acidity. Samples were evaluated by analysis of pH, titratable acidity, total soluble solids, ºBrix/acidity ratio, vitamin C, total sugars, reducing sugars and sensory analysis. Only total soluble solids and total sugars showed statistical differences among formulations for each fruit, due to sucrose addition during nectars preparation. ºBrix/acidity ratio ranged from 20 to 60 for all nectars evaluated. Vitamin C highest levels were observed for camucamu (455.2 and 470.5 mg/100 g) and mangaba (48.3 and 52.7 mg/100 g) nectars. Excluding camucamu, all sensory scores for fruit nectars were higher than 6.0. Results showed good acceptability of fruit nectars and possibilities for industrial processing.

scholarly journals Evaluation of chemical characteristics and correlation analysis with pulp browning of advanced selections of apples grown in Brazil

2017 ◽  
Vol 39 (1) ◽  
pp. 103 ◽  
Author(s):  
Luciana Ercoli ◽  
Érica Oliveira Barizão ◽  
Joana Shuelter Boeing ◽  
Marcus Vinícius Kvitschal ◽  
Jesuí Vergilio Visentainer ◽  
...  
Keyword(s):  
Vitamin C ◽  
Antioxidant Capacity ◽  
Phenolic Content ◽  
Titratable Acidity ◽  
Enzymatic Browning ◽  
Total Phenolic ◽  
Chemical Characteristics ◽  
Antioxidant Capacities ◽  
Total Titratable Acidity ◽  
Selection Of

In this research, the total phenolic content (TPC) and antioxidant capacity (FRAP and DPPH•× assays) of pulps and peels of advanced selection of apples grown in Brazil were investigated. The correlation analyses between the activity of polyphenoloxidase enzyme (PPO), vitamin C content, total titratable acidity, and color parameters were performed. The results indicated that the data differed significantly among the apple genotypes studied. The peels of the selection Epagri 170-91 and Epagri 170-25 showed the highest TPC and antioxidant capacities. In addition, the pulps of the Epagri 170-91 presented the highest TPC and antioxidant capacities, the lowest enzymatic browning, highest amount of vitamin C and lowest enzymatic activity when compared with other genotypes. The TPC and antioxidant capacities were significantly correlated in all genotypes analyzed. High correlation values between enzymatic browning and factors that affect the apple color were also found in all analyzed pulps, except between enzymatic browning and TPC. The results demonstrated that the enzymatic browning and TPC, as well as the antioxidant capacity and chemical characteristics, vary considerably depending on the apple genotypes and fruit tissues analyzed. 

scholarly journals Effects of Leachate Fertigation and the Addition of Hydrogen Peroxide on Growth and Nutrient Balance in Dracaena deremensis Potted Plants

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 127
Author(s):  
Pedro García-Caparrós ◽  
Cristina Velasquez Espino ◽  
María Teresa Lao
Keyword(s):  
Nutrient Solution ◽  
Soluble Sugar ◽  
Nutrient Balance ◽  
Treatment Plant ◽  
Dry Weight ◽  
Sugar Concentration ◽  
Control Treatment ◽  
Peat Moss ◽  
Clear Trend ◽  
Total Soluble Sugar

The reuse of drainages for cultivating more salt tolerant crops can be a useful tool especially in arid regions, where there are severe problems for crops water management. Dracaena deremensis L. plants were cultured in pots with sphagnum peat-moss and were subjected to three fertigation treatments for 8 weeks: control treatment or standard nutrient solution (D0), raw leachates from Chrysalidocarpus lutescens H. Wendl plants (DL) and the same leachate blending with H2O2 (1.2 M) at 1% (v/v) (DL + H2O2). After harvesting, ornamental and biomass parameters, leaf and root proline and total soluble sugar concentration and nutrient balance were assessed in each fertigation treatment. Plant height, leaf and total dry weight had the highest values in plants fertigated with leachates with H2O2, whereas root length, leaf number, RGB values and pigment concentration declined significantly in plants fertigated with leachates from C. lutescens with or without H2O2. The fertigation with leachates, regardless of the presence or absence of H2O2 increased root and leaf proline concentration. Nevertheless, root and leaf total soluble sugar concentration did not show a clear trend under the treatments assessed. Regarding nutrient balance, the addition of H2O2 in the leachate resulted in an increase in plant nutrient uptake and efficiency compared to the control treatment. The fertigation with leachates with or without H2O2 increased nitrogen and potassium leached per plant compared to plants fertigated with the standard nutrient solution. The reuse of drainages is a viable option to produce ornamental plants reducing the problematic associated with the water consumption and the release of nutrients into the environment.

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