Blue LED lighting improves the postharvest quality of tomato (Solanum lycopersicum L. cv. Zahide F1) fruits

The tomato (Solanum lycopersicum L.) is one of the many essential vegetables around the world due to its nutritive content and attractive flavor. However, its short shelf-life and postharvest losses affect its marketing. In this study, the effects of chitosan-Ruta graveolens (CS + RGEO) essential oil coatings on the postharvest quality of Tomato var. “chonto” stored at low temperature (4 °C) for 12 days are reported. The film-forming dispersions (FFD) were eco-friendly synthesized and presented low viscosities (between 0.126 and 0.029 Pa s), small particle sizes (between 1.29 and 1.56 μm), and low densities. The mature index (12.65% for uncoated fruits and 10.21% for F4 coated tomatoes), weight loss (29.8% for F1 and 16.7% for F5 coated tomatoes), and decay index (3.0 for uncoated and 1.0 for F5 coated tomatoes) were significantly different, indicating a preservative effect on the quality of the tomato. Moreover, aerobic mesophilic bacteria were significantly reduced (in five Log CFU/g compared to control) by using 15 μL/mL of RGEO. The coatings, including 10 and 15 μL/mL of RGEO, completely inhibited the mold and yeast growth on tomato surfaces without negatively affecting the consumer acceptation, as the sensorial analysis demonstrated. The results presented in this study show that CS + RGEO coatings are promising in the postharvest treatment of tomato var. “chonto”.

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Salinity resistance as a function of NH4+:NO3- ratio and its impact on yield and quality of tomato ( Solanum lycopersicum L.)

Journal of Plant Nutrition and Soil Science ◽

10.1002/jpln.202000257 ◽

2021 ◽

Author(s):

Muhammad Ashraf ◽

Urooj Naz ◽

Muhammad Abid ◽

Sher Muhammad Shahzad ◽

Ahsan Aziz ◽

...

Keyword(s):

Solanum Lycopersicum ◽

Solanum Lycopersicum L ◽

Yield And Quality ◽

Salinity Resistance

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Growth, yield and postharvest quality of tomato (Solanum lycopersicum Mill.) as influenced by different rates of nitrogen fertilizer

Acta Horticulturae ◽

10.17660/actahortic.2021.1312.48 ◽

2021 ◽

pp. 329-336

Author(s):

N.R. Gonzaga ◽

A.B. Gonzaga ◽

S.L.A. Pepito ◽

R.I. Octavio ◽

S.M. Harper

Keyword(s):

Solanum Lycopersicum ◽

Nitrogen Fertilizer ◽

Growth Yield ◽

Postharvest Quality

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Suitability of bio-extracts with coating materials on physicochemical quality of tomato fruits (Solanum Lycopersicum L.) stored at ambient temperature

International Journal of Agricultural Science and Food Technology ◽

10.17352/2455-815x.000130 ◽

2021 ◽

pp. 347-354

Author(s):

Fufa Desta Dugassa

Keyword(s):

Solanum Lycopersicum ◽

Tomato Fruit ◽

Garlic Extract ◽

Maize Starch ◽

Coating Materials ◽

Tomato Fruits ◽

Physicochemical Quality ◽

Solanum Lycopersicum L ◽

Postharvest Loss

Tomato (Solanum Lycopersicum L. (or) Lycopersicon esculentum Mill.) is being a very nutritious and health protective food, are highly perishable nature. Its sensitivity to postharvest loss due to poor handling, diseases and physical injury limits its successful marketing. Therefore, simple technology is required to reduce the postharvest loss of this commodity. The use of edible coatings with bio-extracts appears to be a good alternative preservation technique to extend the mature tomato fruits. This study was, therefore, initiated to investigate the effect of using bio- extracts garlic bulba and capsicum incorporation with coating materials (maize starch and beeswax on physicochemical quality of tomato fruit stored at ambient conditions (temperature 15.5 to 20.2oC and relative humidity of 55.5 to 67.3%). The experiment was conducted using complete randomized design of two varieties (Fetane and Melkashola) and six treatments. The tomato fruits were coated by dipping into solution for 3 minutes. The treatments prepared were on coating solution of MGE( 9.5% maize starch with 0.5% garlic extract), MCE (9.5% maize starch with 0.5% capsicum extract), BCE (9.5% beewax mixed with 0.5% capsicum extract), BGE (9.5% beewax mixed with 0.5% garlic extract), 10% maize starch without bio-extract, 10% beewax without bio- extract and control. The treatment means were tested at significance level of P ≤ 0.05. The effectiveness of bio-extracts with coating materials on physicochemical quality of tomato fruits were evaluated at three days intervals for 30 days. There was a significance difference (P<0.05) between coated and uncoated fruits. All coatings delayed tomato ripening and improved the keeping quality parameters but best results were exhibited by 9.5% with 0.5% BCE followed by 9.5% with 0.5% MGE by maintaining the mature tomato fruit for 30 days. The study showed that the Fetane variety has maintained more quality attribute than Melkashola variety during storage.

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