Influence du milieu de culture et du cultivar sur la qualité et la conservation post-récolte de la tomate hydroponique de serre

1996 ◽  
Vol 76 (3) ◽  
pp. 515-519 ◽  
Author(s):  
M. Mzouri ◽  
A. Gosselin ◽  
J. Makhlouf
Keyword(s):  
Lycopersicon Esculentum ◽  
Titratable Acidity ◽  
The Other ◽  
Soluble Solids ◽  
Planting Density ◽  
Tomato Cultivar ◽  
Post Harvest ◽  
Lycopersicon Esculentum Mill ◽  
Significant Difference ◽  
Marketable Fruit

Plants of nine tomato cultivar (Lycopersicon esculentum Mill.) of contrasting breeding origins where grown under two growing systems using the nutritive film technique (NFT) and a peat substrate. Planting density was 3 plants m−2. Yield of marketable fruit, culls and four fruit quality parameters (texture, colour, titratable acidity and total soluble solids) were measured at harvest and over 28 d post-harvest. Two varieties were used: Trust, one of the most popular cultivars in Canada, and Cencara a newly released cultivar with long-keeping quality. Over a 21-wk harvest period there was no significant difference for yield or for post-harvest characteristics between the two growth substrates. Trust produced highest yields, compared to the other cultivars, followed by Bounty with a yield 1.6 kg m−2 lower. Bounty and Panther yielded significantly greater masses of marketable fruit than the other cultivars. The new cultivar Cencara showed significantly lower total and marketable yields than the other cultivars, because of the small size of its fruit. At harvest and in storage, Cencara showed better keeping qualities than Trust, while the latter had better eating qualities. Key words: Peat substrate, nutritive film technique, tomato, Lycopersicon esculentum Mill.

scholarly journals 923 PB 470 EFFECT OF HARVEST STAGE ON SOLIDS, ACIDS, FIRMNESS, AND SHELF-LIFE OF TOMATO

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 566d-566
Author(s):  
J. W. Scott ◽  
Elizabeth A. Baldwin
Keyword(s):  
Lycopersicon Esculentum ◽  
Shelf Life ◽  
Titratable Acidity ◽  
The Other ◽  
Soluble Solids ◽  
Fresh Market ◽  
Stages Of Development ◽  
Clear Effect ◽  
Lycopersicon Esculentum Mill ◽  
Ripe Stage

Fruit of 10 tomato (Lycopersicon esculentum Mill.) cultigens, including five typical fresh market F1's, two rin/ + F1's, two very firm (ultrafirm) inbreds, and an antisense PG F1, were harvested at mature green, breaker, and table ripe stages of development, passed over a grader and taken to a lab (21°C) for analyses of soluble solids, titratable acidity and firmness at the table ripe stage. Shelf life was also measured. Cultigens varied in response to both solids and acids at the three harvest stages, thus there was no clear effect of harvest stage on these variables. The rin /+ F1's and ultrafirm inbreds were significantly firmer than the other cultigens at the table ripe and breaker stages. Shelf life tended to decrease with maturity at harvest. One rin /+ F1 had the greatest shelf life at all harvest stages. Ultrafirm and antisense PG cultigens had greater shelf life than the other six cultigens at the table ripe stage.

scholarly journals Quality of Tomato (Solanum lycopersicum L.) Due to Grafting in Solanaceae of Different Species

2019 ◽  
Vol 11 (3) ◽  
pp. 188
Author(s):  
João Lucas Moraes Vieira ◽  
Rogério Eiji Hanada
Keyword(s):  
Block Design ◽  
Tomato Fruit ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Control Treatment ◽  
Tomato Cultivar ◽  
Tomato Crop ◽  
Significant Difference ◽  
Four Blocks

The present work had as objective to evaluate the physical-chemical characteristics of commercial tomato fruits grafted on different solanaceous species. The experiment was conducted in a greenhouse, in a randomized complete block design, with four blocks and six treatments, being the rootstocks: cocona (Solanum sessiliflorum); two cultivars of eggplant (Solanum aethiopicum), Long Light Green and Big Hill; jurubebão (Solanum lycocarpum) and jurubeba juna (Solanum stramonifolium), grafted with the tomato cultivar Santa Cruz Kada, and the control treatment was represented by the self-grafted tomato. Three consecutive harvests were spaced seven days after the production stabilization, and the characteristics fruits analyzed were Total Soluble Solids (ºBrix), pH, Titratable Acidity (percentage of citric acid) and TSS/TA. A statistically significant difference was found in the Tukey’s test at 5% probability in the titratable acidity, pH and fruit pulp flavor, among the evaluated treatments, while the soluble solids content did not differ between treatments in any of the harvests, but the values remained within the considered adequate for the tomato in natura in the current literature. There was a decrease in fruit flavor in all treatments, and fruit pH drop in all treatments with the exception of jurubebão, with the advancement of plant age, while the titratable acidity had an inverse behavior. The evaluated rootstocks can be used in the tomato crop, without prejudice to the quality of the tomato fruit produced.

scholarly journals Post harvest evaluation of physical-chemical parameters of mechanically damaged Tahiti acid limes

2010 ◽  
Vol 1 (2) ◽  
pp. 79
Author(s):  
Michel Shoiti Tamura ◽  
Roselene Ferreira Oliveira ◽  
Simone Correia Molina ◽  
Edmar Clemente
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Parameters ◽  
Post Harvest ◽  
Physical Chemical ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design ◽  
Solids Content

<p>From harvest to consumption, fruit and vegetables suffer a series of mechanical damages which, depending on their sensitiveness, may cause damages that put their final quality at risk. This work had as its objective evaluate the post harvest quality of mechanically damaged &lsquo;Tahity&rsquo; acid limes. The experiment was carried out in a completely randomized design, with 3 repetitions and 7 fruits per treatment, mechanical damages were then evaluated by cutting and impacting in comparison to healthy fruits (control), and maintained for periods of 0, 3. 6, 9, 12, 15 and 18 days, thus obtaining a 3 x 7 factorial experiment. Analyses were made throughout the 18 days, so as to determine the total soluble solids content (expressed in &deg;Brix); titratable acidity (in g of citric acid. 100mL<sup>-1</sup>); ratio (relationsoluble solids and titratable acidity); vitamin C (expressed in mg of ascorbic acid 100mL<sup>-1</sup>) and pH. The results obtained showed that there was significant difference in the chemical parameters evaluated, mainly those submitted to damaging treatment.</p><p>&nbsp;</p><p>DOI: http://dx.doi.org/10.14685/rebrapa.v1i2.20</p>

Plum Tomato Cultivar Evaluation Using Microirrigation

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 455a-455
Author(s):  
T.K. Howe ◽  
A.A. Csizinszky
Keyword(s):  
Lycopersicon Esculentum ◽  
Management System ◽  
Large Range ◽  
Total Yield ◽  
The Other ◽  
Tomato Cultivar ◽  
Small Fruit ◽  
Medium Range ◽  
Marketable Fruit

Plum tomato (Lycopersicon esculentum Mill.) cultivars were evaluated in a full-bed mulch, microirrigation management system. Yield and horticultural characteristics were assessed for four entries, `Marina', `Spectrum 882', `Supra', and `Veronica', during Spring and Fall 1997. Harvested marketable fruit were separated by size into extra large, large, medium, and small categories. Spring: Total marketable yields from three harvests combining all fruit sizes ranged from 46.6 t·ha–1 for `Supra' to 57.1 t·ha–1 for `Veronica'. `Veronica' produced significantly higher total yield than the other three cultivars. There were no significant differences among the cultivars in yield of extra large (range: 2.3 to 2.9 t·ha–1) or large (range: 11.4 to 13.0 t·ha–1) fruit. Only `Veronica' (22.7 t·ha–1) and `Supra' (18.9 t·ha–1) were significantly different from each other in the yield of medium fruit. Veronica' produced significantly more small fruit (19.2 t·ha–1) than any other cultivar. Cull fruit yields ranged from 11.1 t·ha–1 for `Veronica' to 16.9 t·ha–1 for `Supra', which was significantly greater than the other cultivars. Fall: Total marketable yields from six harvests were not significantly different among the cultivars, ranging from 22.0 t·ha–1 for `Spectrum 882' to 31.4 t·ha–1 for `Marina'. Extra large fruit yields ranged from 2.0 t·ha–1 for `Supra' to 6.3 t·ha–1 for `Marina', the only cultivars significantly different from each other. There were no significant differences among the cultivars in yields of large (range: 7.9 to 13.8 t·ha–1), medium (range: 8.7 to 13.8 t·ha–1) or small fruit (range: 2.7 to 3.4 t·ha–1). Cull fruit yields ranged from 37.2 t·ha–1 for `Supra' to 47.4 t·ha–1 for `Veronica'. Cuticle cracking (rain check), black shoulder and nipple-tipped blossom ends were the primary defects in the fall. `Marina' and `Veronica' produced significantly more cull fruit than either `Supra' or `Spectrum 882'.

scholarly journals Storage and Quality of Apples ‘Reinette Simirenko’, Depending on the Dose of Post-Harvest Treatment with Ethylene Inhibitor 1-MCP

2018 ◽  
Vol 26 (2) ◽  
pp. 95-102
Author(s):  
Oleksandr Melnyk ◽  
Olha Drozd ◽  
Ihor Melnyk
Keyword(s):  
Ethylene Production ◽  
Titratable Acidity ◽  
Fruit Rot ◽  
Soluble Solids ◽  
Recommended Dose ◽  
Post Harvest ◽  
Weight Losses ◽  
Ethylene Inhibitor ◽  
Significant Difference ◽  
Solids Content

AbstractNatural weight losses, flesh and core browning, senescent breakdown and fruit rot, ethylene-production, firmness, soluble solids content, titratable acidity and taste of apple ‘Reinette Simirenko’ during storage, depending on the dose of postharvest treatment with 1-methylcyclopropene (1-MCP) were studied. Fruits were collected in harvesting maturity and treated with 1-MCP at the recommended dose of 1000 ppb (SmartFreshTM 0.068 g·m−3) and experimental doses of 750 ppb (75% of the recommended dose) and 500 ppb (50%). Apples were stored at 2 ± 1 °C and air humidity 85–90%. After seven months of cold storage, irrespective of dose of 1-MCP, on the 20th day of shelf-life, ethylene production from the treated apples was 3.9–5.3 times lower than that of the untreated ones. During the seven months of storage, fruits with post-harvest treatment had high firmness – 8.8–9.0 kg without a significant difference in range of 500–1000 ppb 1-MCP. 1-MCP treatment provides 0.6–1.0% higher content of soluble solids (highest level is for the treatment of 750 and 1000 ppb). Content of titratable acidity was higher by 1.4–1.7 times (the highest acidity was at 1000 ppb and, respectively, 1.1 and 1.2 times lower when treated with doses of 750 and 500 ppb). There was no skin browning and senescent breakdown and no flesh browning at 750 and 1000 ppb, and no fruit rot at 1000 ppb. When smaller doses (as recommended) are applied, a more harmonious taste of apples without reducing storage ability is achieved.

scholarly journals Potential of Postharvest Coatings to Maintain Freshness of Red-Fleshed Pitaya (Hylocereus costaricensis)

Agriculture ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 892
Author(s):  
Nur Azlin Razali ◽  
Steven A. Sargent ◽  
Charles A. Sims ◽  
Jeffrey K. Brecht ◽  
Adrian D. Berry ◽  
...  
Keyword(s):  
Weight Loss ◽  
Tap Water ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
The Other ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Quality Factors ◽  
Climacteric Fruit

Pitaya is a non-climacteric fruit that has white or red flesh with numerous small, black seeds. It has a high moisture content; however, water loss during handling and storage negatively affects the fresh weight, firmness and appearance of the fruit, decreasing market value. Application of compatible postharvest coatings has been shown to benefit postharvest quality of many crops. The objective of this study was to evaluate the effect of two commercial coatings on weight loss and quality of pitaya during storage. Pitaya fruit were commercially harvested and sorted for uniformity of size and freedom from defects. Fruit were briefly immersed in either a vegetable oil-based coating (VOC; Sta-Fresh® 2981) or a carnauba-based coating (CC; Endura-Fresh™ 6100) according to manufacturer’s recommendations. Fruit immersed in tap water served as a control. Fruit were fan-dried at room temperature for 20 min, then stored at 7 °C with 85% relative humidity (RH) and evaluated for selected physical quality parameters each 5 days during 20 days. After each evaluation, fruit were peeled and frozen for later analysis of soluble solids content (SSC), total titratable acidity (TTA); on day 15 fresh samples were evaluated by an untrained consumer sensory panel. CC prevented exocarp shriveling for 15 days of storage, compared to uncoated pitaya (16.3% area affected); shriveling in VOC was intermediate and not significantly different from the other treatments. Mesocarp firmness remained constant throughout 15 days of storage regardless of treatment. Fruit exocarp h* angle increased slightly by day 20, becoming slightly less red, and there were no negative treatment effects for the other quality factors measured: SSC (11.33%), TTA (0.25%), weight loss (5.5%) or sensory evaluations (appearance, flavor, texture, firmness, and juiciness). After 20 days storage, appearance for fruit from all treatments was rated unacceptable due to development of anthracnose lesions. It was concluded that both CC and VOC maintained quality of pitaya for 15 days at 7 °C and 85% RH by delaying exocarp shriveling.

scholarly journals Post-harvest quality of Campomanesia adamantium (Cambess.) O. Berg. in function of storage temperature

2020 ◽  
Vol 43 ◽  
pp. e48979
Author(s):  
Marília Assis do Santos ◽  
Alan Carlos Costa ◽  
Clarice Aparecida Megguer ◽  
Júlien da Silva Lima ◽  
Yasmin Giovanna Santos Carvalho ◽  
...  
Keyword(s):  
Visual Analysis ◽  
Storage Temperature ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Post Harvest ◽  
Fruit Species ◽  
Randomized Design ◽  
Soluble Solid

Brazil has a large variety of native and exotic fruit species, including the gabiroba, which can be sources of income for the population. The objective of this study was to evaluate the post-harvest behavior of gabiroba fruit by maturity stage and storage temperature. The fruits were divided into two lots and stored at temperatures of 6, 12, 24 and 30°C. The first batch was used for the physical and chemical analysis of acidity, soluble solids, firmness, percentage of green color, and visual analysis; this batch was composed of green and yellow-green fruit. The second lot was intended for breath analysis, composed of green, yellow-green, and yellow fruits. The experiment was conducted in a completely randomized design with five replications. Data were analyzed using descriptive statistics. Considering the evaluated characteristics, the gabiroba soluble solid/titratable acidity ratio values should be approximately 4.0 for the fruits to be considered acceptable for consumption. For the preservation of the post-harvest quality of gabiroba, it is indicated that the harvest is carried out at the green stage of maturation and that they are stored at a temperature of 6°C. The highest respiratory rates were observed in fruits harvested at the yellow stage, not being recommended its storage.

scholarly journals Influence of stock on physical and chemical traits of fresh apricot fruit

2013 ◽  
Vol 27 (1) ◽  
pp. 111-114 ◽  
Author(s):  
T. Milošević ◽  
N. Milošević ◽  
I. Glišić ◽  
G. Šekularac
Keyword(s):  
Titratable Acidity ◽  
The Other ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Soluble Solids Content ◽  
Total Sugars ◽  
Solids Content ◽  
Chemical Traits ◽  
Physical And Chemical ◽  
Fruit Mass

Abstract The study was conducted to determine the effects of Myrobalan rootstock and Blackthorn interstock on fruit physical and chemical traits of five apricot cultivars. The results showed that cultivars grafted on Myrobalan rootstock appear to induce a higher fruit mass when compared with the Blackthorn interstock. Blackthorn interstock showed a tendency to induce a higher soluble solids/titratable acidity ratio than Myrobalan. Values of soluble solids content, total sugars, titratable acidity and fruit firmness between Myrobalan rootstock and Blackthorn interstock were not significant. Regarding cultivars, the greatest fruit mass observed in Roxana in both treatments, and the lowest in Biljana on Myrobalan and in Vera on Blackthorn. The lowest soluble solids, total sugars and soluble solids/titratable acidity ratio were found in Roxana in both variants of grafting, whereas the greatest titratable acidity also observed in Roxana in both cases, respectively. Based on the results from this study, the fruits of Roxana can be recommended for fresh consumption, whereas fruits of the other cultivars can be recommended for processing.

scholarly journals Influence of the heat treatment on the quality of ivy gourd (Coccinia grandis)

2018 ◽  
Vol 36 (1) ◽  
pp. 126-129
Author(s):  
Thaís Inês M Souza ◽  
Cândido A Costa ◽  
Milton NC Chauca
Keyword(s):  
Heat Treatment ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
The North ◽  
Randomized Design ◽  
Significant Difference ◽  
Minas Gerais State ◽  
Processing Techniques ◽  
Ivy Gourd

ABSTRACT Ivy gourd is an underutilized vegetables found in the North of Minas Gerais State-Brazil. It is mainly consumed raw as salad. Pickling fruits can enhance the commercial exploitation of this species. However, no information on the processing techniques of the ivy gourd fruits in Brazil is found in literature. The objective of this study was to evaluate the quality parameters in the production of pickled ivy gourd. The treatments consisted of three bleaching times (3, 6 and 9 minutes), using a completely randomized design, with seven replicates. We evaluated the traits: instrumental analyzes of pH, color, total titratable acidity, soluble solids, texture and sensorial affective tests. The pH is within the indicated range (below 4.5) and the bleaching time influenced the color and texture alteration since the sample under 3-minute bleaching presented a greater tendency for green and greater firmness. For the sensory analysis, no significant difference related to sensory scoring was noticed; in relation to mode value, we concluded that the 6-minute sample was more preferable, though. For titratable total acidity and soluble solids analyses, no significant differences between the samples was noticed, considering that both parameters were within the standard when compared to other literature. We concluded that heat treatment influenced only the texture and color intensity and the preserved product showed good acceptability.

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.

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