Postharvest application of salicyclic acid

In order to determine the effects of salicylic acid (SA) on postharvest life and quality of peach fruits, four different concentrations (0.5, 1.0, 1.5 or 2.0 mmol L-1) were applied to peach fruits cv. 'Flordaking'. Fruits harvested at commercial maturity were washed, dipped for five minutes in SA solutions and stored at 0ºC with 90% RH on the same day for a period of five weeks. Lower SA concentrations did not offer any significant effect on quality parameters of peach fruits when compared with control. However, SA at 2.0 mmol L-1 concentration significantly exhibited less weight loss, higher flesh firmness, increased SSC, higher TA contents, higher skin luminosity and decreased a* values compared with other treatments including control. Consequently, SA at 2.0 mmol L-1 concentration also showed a significant increase in ascorbic acid and total phenolics content while, relative electrical conductivity was reduced during five weeks of storage. Thus, the present results suggest that SA at 2.0 mmol L-1 concentration could be used commercially to preserve peach fruits for up to five weeks without any spoilage.

International Journal of Plant & Soil Science

The present study aimed to determine the effect of postharvest salicylic acid (SA) treatments on storability and biochemical quality of Bartlett pear fruits at ambient storage conditions. Freshly harvested fruits were treated with salicylic acid solution at 0 (control), 0.5, 1 or 2 mM and fruits were stored at ambient conditions (room temperature) for 21 days storage studies. Data on physiological loss in weight (PLW), fruit spoilage and biochemical quality of fruits (total soluble soils, titratable acidity, ascorbic acid, reducing and total sugars) were recorded. Results revealed that the salicylic acid treatments significantly minimized the PLW and fruit spoilage. At 21 days of storage at ambient conditions, the lowest PLW (13.76 %) and fruit spoilage (21.70 %) was noted with SA at 2 mM. All three SA treatments effectively retained the biochemical attributes of fruits i.e. total soluble soils, titratable acidity, ascorbic acid, reducing and total sugars as compared to control frui...

Journal of Applied Horticulture

This study was aimed to assess the effect of salicylic acid (SA) on quality and storage life of pomegranate (Punica granatum L.) and performed in two experiments including foliar application and postharvest dipping of fruits in salicylic acid solutions. In the first experiment, pomegranate trees were sprayed at concentrations of 0, 1, 3 or 9 mM L-1. After two months of storage at 5 °C, ionic leakage, total soluble solids, and decay of pomegranate fruit was examined. The results showed that ionic leakage and fungal decay decreased and total soluble solids increased in treated fruits compared to the control. In the second experiment, fruits were dipped in SA at concentrations of 0, 1 or 3 mM L-1 and stored at 5 °C for two months to investigate the effects of salicylic acid on chilling injury (Cl), decay, and chemical attributes of stored samples. The results revealed that postharvest application of SA significantly increased total antioxidants and decreased chilling injury and decay of treated fruits. However, it did not significantly affect total phenol, total soluble solids, total anthocyanin and colour of fruits compared to the control.

Journal of Experimental Agriculture International

The present study aimed to determine the effect of postharvest salicylic acid (SA) application on storability and biochemical quality of strawberry fruits cv. Chandler under ambient storage conditions. Freshly harvested fruits were subjected to salicylic acid treatment at 0 (control), 0.5, 1 or 2 mM and fruits were stored at room temperature for 6 days storage studies. Data on physiological loss in weight (PLW), fruit spoilage and biochemical quality of fruits (total soluble soils, titratable acidity, ascorbic acid, reducing and total sugars) were recorded. Results showed that postharvest salicylic acid treatment significantly minimized the PLW and fruit spoilage. At 6 days of storage, the lowest PLW (14.43 %) and fruit spoilage (21.70 %) was observed with SA at 2 mM. All the salicylic acid treatments were effective in retaining the biochemical quality of fruit (total soluble soils, titratable acidity, ascorbic acid, reducing and total sugars). In conclusion, Salicylic acid at 2 mM ...

Journal of Food Measurement and Characterization

In the present study, orange fruit was coated with 1 mmol L −1 salicylic acid (SA), 10 g L −1 acetic acid (AA), 5 g L −1 AA + 0.5 mmol L −1 SA, 10 g L −1 AA + 1 mmol L −1 SA, and 10 g L −1 carboxymethyl cellulose (CMC) solutions to improve the postharvest quality of orange over 35 days of storage. The weight loss, decay, TPC, TAA, and mold injury increased and the AAC decreased throughout the storage time. The control showed the highest TSS, weight loss, decay, and mold injury and the lowest TA, L*, and b* values than the treated samples. Meanwhile, CMC, SA, and 5 g L −1 AA + 0.5 mmol L −1 SA showed the highest AAC, TPC, and TAA. The loss or increasing rate of AAC, TPC, TAA, decay, and mold damage followed a first-order kinetic model in most cases. The SA samples obtained the highest sensory scores. Overall, the application of SA, AA + SA, and CMC, particularly SA can be recommended for improving the postharvest quality of orange fruit.

2013

Peach (Prunus persica (L.) Bastch.) "cv. Flordaprince" fruits at commercial maturity were immersed in 0, 0.5, 1.0 and 1.5 mM salicylic acid (SA) solution for 10 min, stored at 0 ◦ C for 28 days, then moved to 20 ◦C for 3 days to simulate shelf life. Fruit weight losses, firmness, TSS, acidity, Vit.C, sugars, anthocyanin, total phenols and two enzymes namely peroxidase and polyphenol oxidase activities of fruit were measured at the end of shelf life. The results showed the interaction effects between salicylic acid and storage period, also the effect of salicylic acid treatments and effect of storage period. It was noticed that the highest values of fruit losses weight were achieved with increasing storage period to 28 days and decreasing SA concentrations from 1.5 to 0.5 mM, firmness of fruit treated with SA was significantly greater than that of control fruit after 28 days of cold storage. Fruits receiving all postharvest treatments produced the firmest fruits, while the ...

Mango (Mangifera indica L.) is the 2 nd major fruit crop of Pakistan and has a short shelf life after ripening. Salicylic acid is naturally synthesized in plants and play important role to activate the defense system against pathogens and reduce the decay of fruits. This study was conducted to evaluate the pre and postharvest application of salicylic acid on storage life and quality of mango cultivar 'Kensington Pride'. Fruits were harvested at full mature stage (shoulder development) and treated with CaC2 (2g) to initiate the ripening process. After four days of treatment partially ripened fruits were immersed in four concentrations of salicylic acid (0, 8, 12 and 16 mM) for 5 minutes. Fruits were stored at 12°C for 15 days. The results showed that fruit weight loss significantly reduced in all treated fruits as compared to control. It was also observed that SA 16 mM showed minimum reduction in TSS, vitamin C, reducing, nonreducing, total sugars, total antioxidants, total phenolic and total flavonoids. Our research proposed that pre and postharvest treatment of SA 16 mM can be used to reduce the postharvest storage losses of mango and also maintained the quality of mango during shelf life.

Salicylic Acid and Putrescine to Reduce Post-Harvest Storage Problems and Maintain Quality of Murcott Mandarin Fruit, 2020

Natural products have been used to improve citrus fruit quality and storability, which increase the fruit marketing period and exportation to distant markets. This study was conducted to evaluate the role of salicylic acid and putrescine on reducing post-harvest loss and maintaining the quality of stored Murcott mandarin. Fruit were harvested at 297-300 days from full bloom, and five 5-min dipping treatments were applied; salicylic acid (200 and 400 ppm), putrescine (50 and 100 ppm), and the control. One group of fruit was stored at 5 ± 1 • C and 90-95% relative humidity (RH), and the other group was stored at 23 ± 1 • C and 60-70% RH for 45 days. Quality attributes were recorded at harvest, 15, 30, and 45 days of storage. Weight loss and decay were significantly decreased with the application of salicylic acid and putrescine. Both materials were also effective maintaining fruit firmness, total soluble solids (TSS), acidity, TSS: acid ratio, and ascorbic acid during storage. Salicylic acid, especially at 400 ppm was more effective to reduce weight loss and decay, and to maintain fruit quality in comparison to putrescine treatments. It could be concluded that salicylic acid and putrescine are effectively delaying post-harvest deterioration rate and extending the storage period of Murcott mandarin fruit with acceptable quality.

Tarım Bilimleri Dergisi, 2020

Popularity of pomegranate fruit has increased in recent years because of its health benefit content, economic value and medicinal characteristics. Since pomegranate fruit is perishable species, prolonging storage life, keeping fruit quality during storage and marketing period with minimum quality and quantity loss after harvest are essential. Influence of salicylic acid treatments on some quality properties in 'Hicaznar' cultivar fruit were investigated in the current study. After harvest at commercial maturity, fruit were exposed to salicylic acid (SA) treatments. Controls (C1) were untreated. The other groups were dipped into a solution containing 0.01% Tween 20 (C2), 0.01% Tween 20+2 mM SA (SA1), and 0.01% Tween 20+4 mM SA (SA2). Then fruit were stored at 5±1 °C temperature, 85-90% relative humidity for 120 days. Changes in fruit skin and aril color, soluble solids content, titratable acidity, weight loss and chilling injury rate total phenolic content, antioxidant activity were followed at 60 days intervals. Neither SA1 nor SA2 affected total phenolic content and antioxidant activity levels of fruit. But, both treatments helped to maintain C* values in arils and skin, titratable acidity and soluble solids content. Since SA2 treatment significantly reduced chilling injury symptoms during cold storage period of 120 days, it could be considered as promising postharvest technology.

Journal of Agricultural Science and Technology

The main postharvest problems of persimmon in Iran are severe softening and disease incidence on the fruits during storage. Therefore, delay in softening and/or control of diseases result in the storage life extension of persimmon fruit. The strategy of induced disease resistance in plants by biotic and abiotic treatments is an attractive method for controlling diseases. Salicylic acid (SA) is a well known natural inducer of disease resistance in plants. In this study persimmon fruits cv. Karaj were treated at harvest with SA at 0 (as control), 1 and 2 mM and the quality parameters of the fruit were measured during 3 months of storage at monthly intervals. The most noticeable effect of postharvest SA application on stored persimmon fruit was the reduction of disease incidence at 2 mM concentration, while 1 mM SA failed to control diseases. Results showed that SA did not affect TSS, titratable acidity, soluble tannin content, and fruit firmness. Also, SA could not suppress ethylene production compared to the control. SA treatment at 2 mM concentration reduced postharvest disease incidence of persimmon fruit by inducible defense mechanism, being suitable for increasing postharvest life of the fruit.

Plants

Effects of spraying over apple trees (Malus domestica; ‘Topaz’) with methyl salicylic acid (MeSA) and SA during fruit maturation were investigated for quality parameters (weight, firmness, hue angle, red blush, yield) and phenolic profile of the peel and pulp (HPLC–mass spectrometry). These treatment effects were also investigated for activities of the phenylpropanoid pathway enzymes phenylalanine ammonia-lyase, chalcone synthase and isomerase (combined), and flavanone-3β-hydroxylase. The MeSA and SA treatments resulted in poor fruit peel coloration, with higher hue angles and 20% and 10% lower red blush, respectively. Anthocyanin levels were also significantly lower (56%) for MeSA treatment. MeSA stimulated activities of phenylalanine ammonia-lyase and chalcone synthase/isomerase, which resulted in higher levels of flavanols (to 34%), flavonols (to 33%), and hydroxycinnamic acids (to 29%), versus control. Therefore, while these salicylate treatments improve levels of some beneficia...

Environment, Biodiversity and Soil Security

I RRIGATION management is one of the most important factors for water saving, especially with limited water resources in Egypt. so, the present study was carried out during 2017 and 2018 on trees of Lime (Citrus aurantifolia), grown in sandy soil at Asyut Agriculture Research Station (ARC), Asyut Governorate, Egypt, to elucidate the effect of different irrigation regimes; 100%, 80% and 60% of ETc and spraying (SA); with and without spraying on yield, fruit quality and market ability; room temperature and cold temperature. The results can be summarized as follows: irrigation with 100% ETc and spraying SA recorded the highest values of Fruit length, fruit width, Fruit weight and Yield compared to the other irrigation regimes. While, irrigation with 60% ETc and spraying SA recorded the highest values of irrigation water productivity and economic water productivity in both seasons. Also, irrigation fruits with 100% ETc and treated with SA during growth season induced the highest level of Juice weight %. Moreover, the obtained results indicated that irrigating fruits with 60% ETc and treating with SA decreased weight loss % and decay % while, increased TSS %, total acidity in fruit juice, and V.C content of mature fruit compared with the other treatments under marketability.

Journal of Chemical Health Risks, 2022

Peach is one of the most important horticultural crops and its storage and postharvest issues are increasingly taken into consideration. This experiment was conducted to the assessment of salicylic acid spray at 0, 1, 2, and 4 mmol concentrations, and salicylic acid submergence in 2 mmol concentrations on the post-harvest quality of peach cultivar Robin, and the measurement in the four storage times in 2014-2015. In this experiment, the weight loss, volume decrease, length decrease, diameter decrease, pH, total acidity, total soluble solids, vitamin c, antioxidant capacity, total phenol, total flavonoid, and fruit firmness were measured. The results suggested that the salicylic acid treatment caused the inhibition of the weight losses, volume decrease, length decrease, and diameter decrease over the storage period and maintained the fruit firmness. The best result obtained from 2 mmol spray of salicylic acid before harvest. The lowest total soluble solids and pH were observed in 2 mmol salicylic acid spray in all the storage times, while in the other treatments such as control, their contents increased. The results also demonstrated that the highest vitamin C content was in 2 and 4 mmol salicylic acid spray and 2 mmol salicylic acid submergence treatment, and the highest total phenol content resulted from 15 days after storing in all the salicylic acid treatments. The treatment of salicylic acid did not have much effect on the total flavonoid content and antioxidant capacity. Among all the treatments, the spray of 2 mmol salicylic acid, two weeks before the fruit harvest, revealed the best result and can be considered in the enhancement of peach postharvest shelf life.

Postharvest Biology and Technology, 2012

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International Journal of Chemical Studies , 2018

Tomato is a climacteric fruit and has a relatively short postharvest life. Every year approx. 25-40% tomato losses occur due to lack of suitable methods of post-harvest storage. Salicylic acid has high potential in monitoring post-harvest losses as a natural and safe phenolic compound. Therefore, the present research was planned to study the effect of salicylic acid (0.5 mM, 0.75 mM, 1.0 mM, 1.25 mM and 1.5 mM) on the biochemical changes in tomato cultivar Hisar-Arun at turning stage during storage at room temperature. A progressive increase in physiological loss in weight, total soluble solids, lycopene content, β-carotene content, total sugars, reducing sugars and non-reducing sugars was observed. The results suggested that 0.75 mM concentration of salicylic acid was most effective in delaying the ripening related physico-biochemical changes. Hence, exogenous application of salicylic acid is an effective approach in enhancing the shelf life of tomato fruits upto 4 to 6 days.