scholarly journals Hydrogen Sulfide Maintained the Good Appearance and Nutrition in Post-harvest Tomato Fruits by Antagonizing the Effect of Ethylene

2020 ◽  
Vol 11 ◽  
Author(s):  
Gai-Fang Yao ◽  
Chuang Li ◽  
Ke-Ke Sun ◽  
Jun Tang ◽  
Zhong-Qin Huang ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Tomato Fruits ◽  
Post Harvest

scholarly journals Effect of Post-harvest UV-B Irradiation on Polyphenol Profile and Antioxidant Activity in Flesh and Peel of Tomato Fruits

2013 ◽  
Vol 7 (8) ◽  
pp. 2241-2250 ◽  
Author(s):  
Antonella Castagna ◽  
Chiara Dall’Asta ◽  
Emma Chiavaro ◽  
Gianni Galaverna ◽  
Annamaria Ranieri
Keyword(s):  
Antioxidant Activity ◽  
Tomato Fruits ◽  
Post Harvest ◽  
Polyphenol Profile

scholarly journals Phytochemical screening and antifungal potency of Vernonia amygdalina (bitter leaf) extract against post harvest mycodeterioration of tomato (Lycopersicum esculentum)

2020 ◽  
Vol 7 (17) ◽  
pp. 327-337
Author(s):  
U. N. Emiri ◽  
E. B. Enaregha
Keyword(s):  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Diffusion Method ◽  
Lycopersicum Esculentum ◽  
Phytochemical Screening ◽  
Rhizopus Stolonifer ◽  
Vernonia Amygdalina ◽  
Tomato Fruits ◽  
Post Harvest ◽  
Ethanolic Extracts

The study investigated fungi associated with post harvest tomato fruits sold in the open market in Port Harcourt Metropolis. The antifungal activity (bitter leaf) extracts against spoilage was studied using well-in-agar diffusion method. Results showed that mean percentage incidence of fungi isolated from tomato fruits were Rhizopus stolonifer (56%), Aspergillus niger (62%) and Altermaria altermata (35%). Aqueous and ethanolic extracts of Vernonia amygdalina at different concentrations (20%, 40%, and 60%) (w/v) were used against fungi isolates, while water and ketoconzole (0.5 mg/mL) served as negative and positive control, respectively. Aqueous and ethanolic extracts of V. amygdalina inhibited the growth of all three test fungi. There were significant differences (p > 0.05) in the mean inhibitory effects of plant extracts and control. Antifungal activity measured as diameter of zone of inhibition revealed that V. amygdalina acqueous extract at 60% was very active against Aspergillus niger (16.50 mm) and Alternaria altermata (16.00 mm), while being moderately active against Rhizopus stolonifer (13.00 mm). However, 60% ethanolic extract of V. amygdalina was very active against A. niger (19.00 mm), A. altermata (17.00 mm) and Rhizopus stolonifer (15.80 mm). Phytochemical screening of V. amygdalina revealed the presence of tannins, oxalate, saponnins, flavanoid, cynogenic glucoside, phytate and Alkaloids V. amygdalina could serve as a potentially viable alternative to chemical fungicides in the preservation of post harvest tomato fruits (Lycopersicum esculentum).

scholarly journals Reduction of Tomato Post-Harvest Losses by Using 1-Methylcyclopropene

2010 ◽  
Vol 1 (1) ◽  
pp. 29
Author(s):  
Marcos Vieira da Silva ◽  
Cassia Inês Lourenzi Franco Rosa ◽  
Adimilson Bosco Chitarra
Keyword(s):  
Fruit Ripening ◽  
Tomato Plant ◽  
The Other ◽  
Ethylene Synthesis ◽  
Tomato Fruits ◽  
Ripening Process ◽  
Post Harvest ◽  
The World ◽  
Plant Culture ◽  
Useful Life

<p>Tomato is one of the most produced and consumed olericole plants in the world, being a highly perishable fruit, which presents high levels of losses in the post-harvest period. As a form of reducing these losses, it is necessary to know the product physiology. The fruit-ripening phase involves changes in the sensorial characteristics that are unchained by ethylene, a hormone naturally synthesized within the cells and liberated in the form of gas. Ethylene can also be applied on an exogenous way, thus accelerating and making even the ripening of fruits as the tomato. On the other hand, the ripening process can be delayed with the use of 1-methylcyclopropene (1-MCP), an inhibitor of ethylene synthesis, thus prolonging the useful life in the post-harvest period. In the present investigation, with the purpose of a literature revision, in a general way, it was to demonstrate the forms of controlling the ripening of tomato fruits, in the post-harvest period, in order to prevent and reduce losses. The collected data showed that, with better care during the fruit handling and, mainly, with the use of different technologies, as the application of 1-MCP, post-harvest losses in tomato plant culture can be reduced significantly.</p><p>&nbsp;</p><p><a href="http://dx.doi.org/10.14685/rebrapa.v4i1.116">http://dx.doi.org/10.14685/rebrapa.v1i1.6</a></p>

Effects of Ethylene and Propylene on Post-Harvest Development and Ripening of Young Normal and Mutant Tomato Fruits

1977 ◽  
Vol 4 (3) ◽  
pp. 459 ◽  
Author(s):  
I Adato ◽  
WB Mcglasson
Keyword(s):  
Ethylene Production ◽  
Growth Period ◽  
Tomato Fruits ◽  
Ethylene Treatment ◽  
Post Harvest ◽  
Yellow Orange ◽  
Total Growth ◽  
Orange Colour ◽  
Colour Development ◽  
Days After Anthesis

When tomato fruits of cv. Rtugers (normal), and of the rin and nor mutants were detached 10 days after anthesis (24% of the total growth period), they usually developed a characteristic swelling of one or more locules, which eventually developed a red, yellow or yellow-orange colour typical of the mature fruits of each strain. The remainder of the fruit tissues lost chlorophyll and eventually became necrotic. Ethylene treatment (25 �l/l) started 2 h after harvest advanced the onset of swelling in 10-day fruits of all strains. Treatment that was started 7 days after harvest had no effect on the onset of swelling in Rutgers and rin and had only a small effect on nor fruits. When ethylene was applied before first visible swelling (FS), the undeveloped portions of the fruits rapidly became necrotic and this necrosis spread to the swollen locules before they coloured. From FS and onwards, ethylene increased the rate of swelling and advanced colouring of the swollen locules. In some treated rin fruits, the swollen locules became intensely pink or red. Propylene treatment (500 �l/l) started 2 h after harvest also advanced the onset of swelling and red colour development in swollen locules in Rutgers fruits, as well as advancing the onset of the respiratory climacteric and the associated rise in ethylene production. Swelling in both control and propylene-treated fruits was not associated with any marked changes in respiration and ethylene production.

The influence of post-harvest UV-C and pulsed light treatments on quality and antioxidant properties of tomato fruits during storage

2015 ◽  
Vol 30 ◽  
pp. 103-111 ◽  
Author(s):  
Gianpiero Pataro ◽  
Mertcan Sinik ◽  
Mauro Maria Capitoli ◽  
Giorgio Donsì ◽  
Giovanna Ferrari
Keyword(s):  
Antioxidant Properties ◽  
Pulsed Light ◽  
Tomato Fruits ◽  
Post Harvest ◽  
Uv C

scholarly journals Tomato (Lycopersicon esculentum P. Miller) compression due to "K" wood box closing

2010 ◽  
Vol 34 (3) ◽  
pp. 746-750
Author(s):  
Rita de Fátima Alves Luengo ◽  
Adonai Gimenez Calbo ◽  
Angelo Pedro Jacomino
Keyword(s):  
Lycopersicon Esculentum ◽  
Reference Value ◽  
Physical Capacity ◽  
Load Cell ◽  
Significant Part ◽  
Tomato Fruits ◽  
Post Harvest ◽  
Hydraulic Load ◽  
Accommodation Process

Wood boxes kind "k" are the most used in table tomato (Lycopersicon esculentum P. Miller) commercialization in Brazil. Due to the fruit accommodation process that occurs during the transport from the production place to the commercialization point, producers fill tomato boxes a little bit over its physical capacity, and they close it with wood strips fixed with nails. In order to prevent strips from cracking, it is common to keep them inside water before using, to increase flexibility. When boxes are opened, many fruits are cracked or kneaded in a significant part of their total area, and normally they are thrown away. The purpose of this paper was to quantify the compression tomato fruits are exposed to in consequence of the "k" box fill / closing system. For this study a special instrumented box was constructed with a scales plate located at the bottom, with a hydraulic load cell instrumented in the box. This instrument was then used to study the compression of fruits as the box is filled and the compression increase caused by the addition of its wooden lid. The "k" box closing system caused an initial compression increase 3.5 times the compression of the open tomato box, and during time as the fruits are substantially deformed. This compression was reduced two about two times de initial reference value. The consequence of this observed fruit compression is compatible with the fruit deformations and even cracks observed in the market, which are known to be relevant post harvest losses causes in the Brazilian tomato handling industry.

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