Studies on the effect of exogenous application of salicylic acid on post-harvest
quality and shelf life of tomato fruit Cv. Abhinav

An investigative research experiment was undertaken to study the effect of exogenous application of salicylic acid on tomato fruit of Cv. Abhinav during its storage period at 24oC. The fresh tomato fruits (Lycopersicon esculentum Mill.) of Cv. Abhinav were harvested at the proper stage of physiological maturity. The fruits were washed thoroughly with clean water followed by fungicidal treatment of 500 ppm benomyl before salicylic acid treatment. Thereafter, the fungicide treated tomato fruits were subdivided into four different lots and then immersed in salicylic acid (SA) solutions at 50, 100, 150 and 200 ppm concentrations for 30 mins respectively and kept for storage studies along with control fruits. During the storage period, the observations were recorded at frequent intervals for various physico-chemical parameters in which tomatoes treated at 200ppm salicylic acid concentration found significant with respect to the lower physiological loss in weight (10.3%), a gradual increase in TSS and colour (h) from 1.4 to 3.3oBrix and -3.63 to 2.59 respectively. Moreover, the considerable decrease was observed in titrable acidity from 1.34 to 0.14%, Ascorbic Acid (SA) content from 73.14 to 22.10 mg/100 g and texture in terms of firmness decreased from 354 to 96 gf. The total phenolic content of 200 ppm salicylic acid treated tomatoes showed a gradual decrease from 3.79 to 3.14 mg GAE/g and lycopene content increased slowly from 7.01 to 12.31 mg/100 g therefore, found significant as compared to rest of the treatments and control fruits.

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Assessment of locally produced waxing materials on the shelf life and fruit quality of two tomato varieties (Solanum lycopersicum)

Journal of Energy and Natural Resource Management ◽

10.26796/jenrm.v4i1.73 ◽

2017 ◽

Vol 4 (1) ◽

pp. 36-47

Author(s):

R. Osae G. Essilfie J. O. Anim

Keyword(s):

Shelf Life ◽

Tomato Fruit ◽

Chemical Properties ◽

Storage Period ◽

Cassava Starch ◽

Soluble Solids ◽

Shea Butter ◽

Tomato Fruits ◽

Randomized Design ◽

Colour Development

The study was conducted to assess the effect of different waxing materials on the quality attributes of tomato fruits. A 2 x8 factorial experiment layout in complete randomized design with 16 treatment combinations and 3 replication was adopted.The materials that were used for the experiment are two (2) varieties of tomatoes (Pectomech and Power Rano) and seven(7) waxing material (shea butter, cassava starch, beeswax, and a combination of shea butter + cassava starch, shea butter + beeswax, cassava starch + beeswax, shea butter + cassava starch + beeswax) and a control. Results from the experiment indicated that all waxing treatments delayed the development of weight loss, firmness, pH, total soluble solids, and total titrable acidity. The results also suggested that edible wax coatings delayed the ripening process and colour development of tomato fruits during the storage period and extended the shelf life. However Beewax treatment and its combinations performed better than the other treatments. It was therefore recommended that locally produced wax such as Beewax, Shea butter, Cassava Starch treatments and their combinations could be a good technology for preserving the quality and extending the shelf life of fresh tomato fruit as well as maintaining the physical and chemical properties.

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Improving Phenolic Total Content and Monoterpene in Mentha x piperita by Using Salicylic Acid or Methyl Jasmonate Combined with Rhizobacteria Inoculation

International Journal of Molecular Sciences ◽

10.3390/ijms21010050 ◽

2019 ◽

Vol 21 (1) ◽

pp. 50 ◽

Cited By ~ 4

Author(s):

Lorena del Rosario Cappellari ◽

Maricel Valeria Santoro ◽

Axel Schmidt ◽

Jonathan Gershenzon ◽

Erika Banchio

Keyword(s):

Salicylic Acid ◽

Plant Species ◽

Management Practice ◽

Total Content ◽

Plant Growth Promoting Rhizobacteria ◽

Total Phenolic ◽

Exogenous Application ◽

Mentha X Piperita ◽

Plant Growth Promoting ◽

Growth Promoting

The effects of plant inoculation with plant growth-promoting rhizobacteria (PGPR) and those resulting from the exogenous application of salicylic acid (SA) or methyl jasmonte (MeJA) on total phenolic content (TPC) and monoterpenes in Mentha x piperita plants were investigated. Although the PGPR inoculation response has been studied for many plant species, the combination of PGPR and exogenous phytohormones has not been investigated in aromatic plant species. The exogenous application of SA produced an increase in TPC that, in general, was of a similar level when applied alone as when combined with PGPR. This increase in TPC was correlated with an increase in the activity of the enzyme phenylalanine ammonia lyase (PAL). Also, the application of MeJA at different concentrations in combination with inoculation with PGPR produced an increase in TPC, which was more relevant at 4 mM, with a synergism effect being observed. With respect to the main monoterpene concentrations present in peppermint essential oil (EO), it was observed that SA or MeJA application produced a significant increase similar to that of the combination with rhizobacteria. However, when plants were exposed to 2 mM MeJA and inoculated, an important increase was produced in the concentration on menthol, pulegone, linalool, limonene, and menthone concentrations. Rhizobacteria inoculation, the treatment with SA and MeJA, and the combination of both were found to affect the amount of the main monoterpenes present in the EO of M. piperita. For this reason, the expressions of genes related to the biosynthesis of monoterpene were evaluated, with this expression being positively affected by MeJA application and PGPR inoculation, but was not modified by SA application. Our results demonstrate that MeJA or SA application combined with inoculation with PGPR constitutes an advantageous management practice for improving the production of secondary metabolites from M. piperita.

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Modulation of salt-induced stress impact in Gladiolus grandiflorus L. by exogenous application of salicylic acid

Scientific Reports ◽

10.1038/s41598-021-95243-9 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Malik Fiaz Hussain Ferdosi ◽

Amna Shoaib ◽

Salma Habib ◽

Kashif Ali Khan

Keyword(s):

Salicylic Acid ◽

Salt Stress ◽

Research Work ◽

Proline Content ◽

Saline Control ◽

Total Phenolic ◽

Agricultural System ◽

Organic Osmolytes ◽

Exogenous Application ◽

Physiological Variables

AbstractSalinity is challenging threats to the agricultural system and leading cause of crop loss. Salicylic acid (SA) is an important endogenous signal molecule, which by regulating growth and physiological processes improves the plant ability to tolerate salt stress. Considering the prime importance of Gladiolus grandiflorus (L.) in the world’s cut-flower market, the research work was undertaken to elucidate salinity tolerance in G. grandiflorus by exogenous application of SA irrigated with saline water. Results revealed that increasing salinity (EC: 2, 4 and 6 dS m–1) considerably altered morpho-growth indices (corm morphology and plant biomass) in plants through increasing key antioxidants including proline content and enzymes activity (superoxide dismutase, catalase and peroxidase), while negatively affected the total phenolic along with activity of defense-related enzymes (phenylalanine ammonia lyase, and polyphenol oxidase activity). SA application (50–200 ppm) in non-saline control or saline conditions improved morpho-physiological traits in concentration-dependent manners. In saline conditions, SA minimized salt-stress by enhancing chlorophyll content, accumulating organic osmolytes (glycine betaine and proline content), total phenolic, and boosting activity of antioxidant and defense-related enzymes. Principle component analysis based on all 16 morphological and physiological variables generated useful information regarding the classification of salt tolerant treatment according to their response to SA. These results suggest SA (100 or 150 ppm) could be used as an effective, economic, easily available and safe phenolic agent against salinity stress in G. grandiflorus.

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Effect of Harvesting Stages and Calcium Chloride Application on Postharvest Quality of Tomato Fruits

Coatings ◽

10.3390/coatings11121445 ◽

2021 ◽

Vol 11 (12) ◽

pp. 1445

Author(s):

Mohammad Nurun Nabi Mazumder ◽

Azizah Misran ◽

Phebe Ding ◽

Puteri Edaroyati Megat Wahab ◽

Azhar Mohamad

Keyword(s):

Calcium Chloride ◽

Tomato Fruit ◽

Storage Conditions ◽

Postharvest Quality ◽

Total Phenolic ◽

Vegetable Crops ◽

Ambient Conditions ◽

Storage Duration ◽

Tomato Fruits ◽

Green Stage

Tomatoes are a good source of vitamins, minerals, antioxidants, and enzymes, which are beneficial to human health. They are one of the most commercially high-value vegetable crops that experience a huge postharvest loss after harvest. The present experiment is conducted to investigate the effect of different maturity stages (mature green, breaker, and half-ripe stage), pre- and post-harvest treatment with different concentrations (0.0%, 1.0%, 1.5%, and 2.0%, w/v) of calcium chloride (CaCl2) on the postharvest performance, antioxidant and enzymatic activity of lowland tomato fruits, stored at ambient temperature (28 ± 2 °C and 75 ± 5% RH). Tomato fruit of mature green stage treated with 2% CaCl2 significantly (p = 0.05) declined the ethylene production (15.53%), weight loss (16.43%), and delayed color development by slowly synthesizes the lycopene content as well as extended the shelf life. The maximum amount of total phenolic content (TPC) was demonstrated at the highest level of CaCl2 (2%) after 20 days of storage life at ambient conditions. The concentration of CaCl2 influenced the activity of different plant defense enzymes, and the higher doses of CaCl2 (2%) accelerated the activity of peroxidase (POD) (13%), polyphenol oxidase (POP) (7.3%), and phenylalanine ammonia-lyase (PAL) (8.5%) relative to that of the control samples. Therefore, the tomato producers and traders could extend the storage duration of tomato fruits by harvesting at the mature green stage and applying 2% CaCl2 in both pre-and postharvest at ambient storage conditions.

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Heat shock and salicylic acid on postharvest preservation of organic strawberries

Revista CERES ◽

10.1590/s0034-737x2014000300002 ◽

2014 ◽

Vol 61 (3) ◽

pp. 306-312

Author(s):

Sidiane Coltro ◽

Laline Broetto ◽

Maria Cristina Copelo Rotilli ◽

Alice Jacobus de Moraes ◽

Fabiane Karine Barp ◽

...

Keyword(s):

Weight Loss ◽

Salicylic Acid ◽

Heat Shock ◽

Good Condition ◽

Microbiological Quality ◽

Storage Period ◽

Defense Responses ◽

Life Extension ◽

Fresh Weight ◽

And Control

Heat shock and salicylic acid have been studied on shelf-life extension of fruits. The benefits of these techniques have been related to their effect on inducing physiological defense responses against the oxidative stress and pathogen development. The objective of this study was to evaluate the effect of heat shock and salicylic acid on the postharvest preservation and contents of total phenolics, anthocyanins, ascorbic acid, fresh weight loss and microbiological quality of organic strawberries cv. Dover. Strawberries produced organically and stored at 5 ºC were subjected to heat shock (45 ºC ± 3 ºC for 3 h), application of salicylic acid (soaking in 2.0 mmol L-1 solution), heat shock in combination with salicylic acid and control. After treatment, the fruits were packed and stored in a climatic chamber at 5 ºC ± 2 ºC. At 1, 7 and 14 days, the experimental units were removed from refrigeration and kept at room temperature of approximately 20 ºC for two days. There was no effect of treatments on fresh weight loss, incidence of pathogens or chemical variations in strawberry fruits during the storage period. In natural conditions, organically grown strawberries remained in good condition for sale up to seven days of storage in all treatments.

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Pre-Harvest Application of Salicylic Acid, Abscisic Acid, and Methyl Jasmonate Conserve Bioactive Compounds of Strawberry Fruits during Refrigerated Storage

Horticulturae ◽

10.3390/horticulturae7120568 ◽

2021 ◽

Vol 7 (12) ◽

pp. 568

Author(s):

Omaima S. Darwish ◽

Marwa R. Ali ◽

Ebtihal Khojah ◽

Bassem N. Samra ◽

Khaled M. A. Ramadan ◽

...

Keyword(s):

Salicylic Acid ◽

Abscisic Acid ◽

Methyl Jasmonate ◽

Bioactive Compounds ◽

Foliar Application ◽

Storage Period ◽

Soluble Solids ◽

Total Phenolic ◽

Refrigerated Storage ◽

Strawberry Fruit

The short shelf-life and loss of bioactive compounds of strawberry fruit are the most important problems during strawberry refrigerated storage. This study was carried out to evaluate the effect of the pre-harvest foliar application of salicylic acid (SA) (2 and 4 mM), abscisic acid (ABA) (0.25 and 0.50 mM), and methyl jasmonate (MeJA) (0.25 and 0.50 mM) three times, 10 d apart, at fruit development and ripening stages on storage ability and bioactive compounds of strawberry fruit (cv. Festival) stored at 4 °C for 12 d. Our results showed that fruit obtained from both concentrations of ABA and 0.25 mM MeJA was firmer and had higher total soluble solids (TSS) than fruit from non-treated plants. However, all previous applications had no significant effect on weight loss, pH, or color. Applications of 4 mM SA and 0.25 mM MeJA conserved fruit from ascorbic acid (AsA) loss compared to control at the end of the storage period. In addition, all pre-harvest applications remained higher in total phenolic compounds (TPC) and anthocyanin contents compared to controls at the last storage period. Hence, the pre-harvest application of SA, ABA, and MeJA could be used to conserve TPC and anthocyanin as well as the quality of strawberry fruits during refrigerated storage.

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The effect of in vitro enzyme digestion on antioxidant and anticholinesterase potential of tomato (Lycopersicum esculentum) fruit and two commercially processed tomato pastes

International Journal of Food Studies ◽

10.7455/ijfs/9.si.2020.a3 ◽

2020 ◽

Vol 9 ◽

Author(s):

Sule O. Salawu ◽

Olatunde F. Faloye ◽

Bukola B. Ola-Salawu ◽

Akintunde A. Akindahunsi

Keyword(s):

Phenolic Content ◽

Tomato Fruit ◽

Radical Scavenging ◽

Total Phenolic ◽

Flavonoid Content ◽

Gastrointestinal Digestion ◽

Tomato Fruits ◽

Antioxidant Power ◽

Ferric Reducing Antioxidant Power

Tomato is a horticultural crop of interest, that is widely consumed fresh or as processed products. The present investigation was to evaluate the antioxidant indices (total phenolic content, flavonoid content, ferric reducing antioxidant power, radical scavenging activities, inhibitory action against lipid oxidation) and anti-cholinesterase action (acetylcholinesterase and butyrylcholinesterase) of tomato fruits (ripe and unripe) and pastes (paste 2 and paste 1) after simulated gastrointestinal digestion. The total phenolic content (mg/g GAE) of the In vitro digested tomato fruits and pastes showed higher values (ripe tomato: 61.08; tomato paste1: 56.02; tomato paste 2: 60.36; unripe tomato: 38.97) than the ethanolic extracts, with digested ripe tomato ranking higher. Similar results were also obtained for total flavonoid content, ferric reducing antioxidant power, and the radical scavenging activities (DPPH*, ABTS˙+, NO*, OH*), with the in vitro digested samples ranking high. The ability of the enzyme digested and ethanolic extracts of tomato fruits and pastes to inhibit iron and sodium nitroprusside induced lipid oxidation in rat’s liver and brain homogenate increased in a concentration dependent manner, with the enzyme digested tomato fruits and pastes ranking high. Similarly, the ability of the in vitro digested tomato fruit and pastes to enhance activities of the antioxidant enzymes (GPx, GSH, SOD and Catalase) and to inhibit the formation of cholinesterases ranked high. The result of this investigation showed that the studied tomato fruit and pastes possess antioxidant and anti-cholinesterase activities that would be bio-available after the gastrointestinal digestion and by implication could be harnessed as functional food.

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Improvement of the nutraceutical quality and yield of tomato by application of salicylic acid

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha48211914 ◽

2020 ◽

Vol 48 (2) ◽

pp. 882-892 ◽

Cited By ~ 1

Author(s):

Oscar SARIÑANA-ALDACO ◽

Esteban SANCHEZ-CHAVEZ ◽

Manuel FORTIS-HERNÁNDEZ ◽

José Antonio GONZÁLEZ-FUENTES ◽

Alejandro MORENO-RESENDEZ ◽

...

Keyword(s):

Salicylic Acid ◽

Tomato Fruit ◽

Well Being ◽

Fruit Weight ◽

Average Concentration ◽

Soluble Solids ◽

Tomato Crop ◽

Tomato Fruits ◽

Nutritive Solution

Tomato fruits are a unique functional food and a natural reservoir of nutrients, antioxidants, vitamins and bioactive compounds that improve nutrition and human health. As an important vegetable throughout the world, tomatoes have attracted the attention of researchers to carry out various strategies to improve the functionality of this food aimed at the prevention of diseases, health and global well-being. An agronomic strategy in this study was to evaluate the influence of the application of "salicylic acid (SA)" on the yield and nutraceutical quality of the tomato crop, produced under hydroponic conditions. A completely randomized experimental design with six repetitions was used. SA at five doses (0.025, 0.05, 0.075, 0.1 and 0.125 mM) and one control were applied every 15 days in the nutritive solution under a hydroponic system on tomato plants. The evaluated variables were yield (total fruit weight per plant), fruit parameters (weight, diameter, firmness, and total soluble solids), percentage of weight loss and nutraceutical quality of tomato. The results obtained indicate that the addition of salicylic acid in nutritive solution increased the yield and biosynthesis of phytochemical compounds in tomato fruits, in relation to the control without application. In conclusion, to obtain a higher nutraceutical quality without affecting the tomato fruit yield, it is recommended to use the average concentration (0.125 mM) of SA.

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Effect of chemical and biological elicitors on antioxidant potential of Ocimum sanctum

International Journal of Ayurvedic Medicine ◽

10.47552/ijam.v12i3.2090 ◽

2021 ◽

Vol 12 (3) ◽

pp. 559-564

Author(s):

Shweta Sharma ◽

Ashika Chourasia ◽

Varnika Kaushik ◽

Gargi Nandi ◽

Joshna Bhatia ◽

...

Keyword(s):

Salicylic Acid ◽

Free Radical ◽

Medicinal Plants ◽

Phenolic Content ◽

Radical Scavenging ◽

Free Radical Scavenging ◽

Antioxidant Potential ◽

Ocimum Sanctum ◽

Total Phenolic ◽

Exogenous Application

Medicinal plants are a known source of antioxidants and are used for the prevention and treatment of diseases. Exogenous application of elicitors can be used to improve the antioxidant profiles of medicinal plants enhancing their therapeutic potential. Present study aimed to study the effect of elicitors such as proline, salicylic acid and a plant growth promoting rhizobacteria- Azospirillum on antioxidant potential of medicinal plant - Ocimum sanctum. Semi-quantitative assay- thin layer chromatography (TLC), and quantitative assays such as DPPH (2,2-Diphenyl-1-picrylhydrazyl) for free radical scavenging activity, total phenolic content and antioxidant responsive enzymes SOD (superoxide dismutase) and CAT (catalase) activities were used for the assessment based on standard protocols. Growth changes like number of leaves, root length, shoot length, total plant height, fresh weight and dry weight observed in response to the treatments given. Exogenous application of proline, salicylic acid and Azospirillum enhanced growth and overall antioxidant content of treated plants. Proline showed higher elicitation with high phenolic content (47.66 GAE/gm. wt.) and number of distinct bands (18) in TLC. The DPPH assay also showed higher free radical scavenging potential (70.32% reduction) of proline treated plants. Enhanced activity of antioxidative enzymes CAT and SOD was also observed in all the treated plants. The study confirms the effectivity of using these elicitors for enhancing antioxidant potential of medicinal plants.

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Effect of Kelulut Honey Nanoparticles Coating on the Changes of Respiration Rate, Ascorbic Acid, and Total Phenolic Content of Papaya (Carica papaya L.) during Cold Storage

Foods ◽

10.3390/foods10020432 ◽

2021 ◽

Vol 10 (2) ◽

pp. 432 ◽

Cited By ~ 1

Author(s):

Bernard Maringgal ◽

Norhashila Hashim ◽

Intan Syafinaz Mohamed Amin Tawakkal ◽

Mahmud Tengku Muda Mohamed ◽

Muhammad Hazwan Hamzah ◽

...

Keyword(s):

Experimental Data ◽

Ascorbic Acid ◽

Respiration Rate ◽

Cold Storage ◽

Total Phenolic Content ◽

Carica Papaya ◽

Phenolic Content ◽

Storage Period ◽

Total Phenolic ◽

And Control

This study evaluated the respiration rate of coated and uncoated (control) papayas (Carica papaya L.) with 15% of Kelulut honey (KH) nanoparticles (Nps) coating solution during cold storage at 12 ± 1 °C for 21 days. The respiration rate of the papayas significantly changed during storage, with an increase in CO2 and a decrease in O2 and C2H4, while the ascorbic acid and total phenolic content was maintained. The changes in respiration rate were rather slower for coated papayas when compared to control ones. A kinetic model was established from the experimental data to describe the changes of O2, CO2, and C2H4 production in papayas throughout the storage period. All O2, CO2, and C2H4 were experimentally retrieved from a closed system method and then represented by the Peleg model. The outcomes indicated the Peleg constant K1 and K2, which were gained from linear regression analysis and coefficients of determination (R2), seemed to fit well with the experimental data, whereby the R2 values exceeded 0.85 for both coated and control papayas. The model confirmed both the capability and predictability aspects of the respiration rate displayed by papayas coated with KH Nps throughout the cold storage period. This is supported by the differences in the stomatal aperture of coated and control papaya shown by microstructural images.

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