Wet Oxidation of Salicylic Acid Solutions

2010 ◽  
Vol 44 (22) ◽  
pp. 8629-8635 ◽  
Author(s):  
Sergio Collado ◽  
Laura Garrido ◽  
Adriana Laca ◽  
Mario Diaz
Keyword(s):  
Salicylic Acid ◽  
Wet Oxidation ◽  
Acid Solutions

scholarly journals Pre-harvest application of salicylic acid influence physicochemical and quality characteristics of ‘Chimarrita’ peaches during cold storage

2019 ◽  
pp. 46
Author(s):  
Jakellinye Miranda ◽  
Suélen Braga de Andrade, Andressa Vighi Schiavon ◽  
Pedro Luis Panisson Kaltbach Lemos ◽  
Cláudia Simone Madruga Lima ◽  
Marcelo Barbosa Malgarim
Keyword(s):  
Salicylic Acid ◽  
Shelf Life ◽  
Cold Storage ◽  
Room Temperature ◽  
Soluble Solids ◽  
Acid Solutions ◽  
Post Harvest ◽  
Hue Angle ◽  
Cold Chamber

Peach is a climacteric highly-perishable fruit whose post-harvest preservation relies largely on cold storage. The combination of the last with other technologies allows to extend the shelf life of this product. One alternative is the utilization of salicylic acid, a natural compound involved in many physiological phenomena such as resistance against diseases and ripening. Considering these facts, the objective of the present work was to evaluate the effect of pre-harvest application of salicylic acid solutions on the quality of ‘Chimarrita’ peaches during post-harvest cold storage. The experiment was conducted at the Federal University of Pelotas/RS, in the campus of Capão do Leão/RS - Brazil. The application of salicylic acid solutions was performed by direct pulverization on the fruits, 30 days prior to harvest. The concentrations were: 0,0 (control); 1,0; 1,5; and 2,0 mM. After harvest, the fruits were stored in a cold chamber at 1,0 ± 0,5°C and 85-90% RH, for 30 days. The analyses were performed at the following cold storage periods (plus 2 days at room temperature of 20°C to all treatments, in order to simulate commercialization conditions): 10 (+2) days; 20 (+2) days; e 30 (+2) days. The variables evaluated were: mass loss (%); flesh firmness (N); DA index; color (L, a*, b* and hue angle); wooliness incidence (%); rot incidence (%); total soluble solids (°Brix); pH; titrable acidity (% of organic acids); and ratio. The salicylic acid doses and/or the cold storage periods had significant effects on all the evaluated parameters. For most of the parameters analyzed, the intermediate dosis of 1mM (and also 1,5mM) of salicilic acid showed the most promising results. Therefore, the application of salicylic acid solutions 30 days prior to harvest is a technique which can be combined to cold storage in order to shift the quality and the shelf-life of ‘Chimarrita’ peaches.

Liquid-Phase Oxidative Degradation of the Damaged or Expired Medicinal Products

2014 ◽  
Vol 1040 ◽  
pp. 327-330 ◽  
Author(s):  
Tatyana Volgina ◽  
Viktor T. Novikov ◽  
Oksana Yu. Fedorova
Keyword(s):  
Carbon Dioxide ◽  
Salicylic Acid ◽  
Sulphuric Acid ◽  
Organic Compounds ◽  
Oxidative Degradation ◽  
Zinc Ions ◽  
Acid Solutions ◽  
Medicinal Products ◽  
Cathode Reduction

A method of oxidative mineralization of the salicylic acid and its derivatives as well as medicinal products containing salicylic acid as the active ingredient was investigated. Destruction of the organic compounds is possible both in the electrolyte under the oxidant, electrochemically formed in situ in the sulphuric acid solutions, and at the anode so. Simultaneously, at the cathode, reduction of the zinc ions, contained in a number of medicinal products, is possible. Final products of the oxidation are simple non-toxic organic compounds, carbon dioxide, and water. This process is the most effective in the 40% sulphuric acid at the current density of 0.5–0.8 A/cm2 and the temperature of 30–50 °C.

Effect of calcium chloride and salicylic acid solutions on the vase life of Heliconia spp.

2018 ◽  
pp. 205-210
Author(s):  
H.A. Akintoye ◽  
O.A. Shokalu ◽  
M.T. Olatunji ◽  
A.G. Adebayo ◽  
O.O. Aina ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Calcium Chloride ◽  
Vase Life ◽  
Acid Solutions

scholarly journals SINTESIS DAN STUDI STABILITAS NANOPARTIKEL PERAK TERTUDUNG ASAM SALISILAT

2019 ◽  
Vol 1 (3) ◽  
pp. 83
Author(s):  
Rizky Noviani Ridwan ◽  
Gusrizal Gusrizal ◽  
Nurlina Nurlina ◽  
Sri Juari Santosa
Keyword(s):  
Silver Nanoparticles ◽  
Salicylic Acid ◽  
Silver Nitrate ◽  
Stability Test ◽  
Capping Agent ◽  
Acid Solutions ◽  
Boiling Water Bath ◽  
Yellow Color ◽  
Size Of Particles ◽  
Average Size

Silver nanoparticles capped with salicylic acid have been synthesized by reduction of silver nitrate with salicylic acid without additional capping agent. In the formation of silver nanoparticles, the solution of silver nitrate was first mixed with the pH 11 salicylic acid solutions at a mole ratio of 1:40. The mixture was heated for 45 minutes in a boiling water bath. The formation of silver nanoparticles was indicated by the appearance of yellow color and monitored using UV-Vis spectrophotometer. The maximum peak of resulted silver nanoparticles appeared in the range of 410-420 nm with the average size of particles was 66±28 nm. Stability test over a period of 16 weeks showed that silver nanoparticles capped with salicylic acid were stable. The results of stability test show that salicylic acid simultaneously act as reducing as well as capping agent in the formation of silver nanoparticles.

scholarly journals Salicylic Acid Concentrations and Its Effects on the Physiological Quality of Soybean Seeds

2019 ◽  
Vol 11 (17) ◽  
pp. 271
Author(s):  
Joner S. Dalcin ◽  
Ubirajara R. Nunes ◽  
Rodrigo Roso ◽  
Caren A. Müller ◽  
Fernanda A. A. L. Backes ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Dry Mass ◽  
Soybean Seeds ◽  
Distilled Water ◽  
Acid Solutions ◽  
Drastic Reduction ◽  
Seed Imbibition ◽  
Physiological Quality ◽  
Fresh And Dry Mass

The objective of this study was to evaluate the physiological quality of commercial soybean seeds submitted to different concentrations of salicylic acid (SA), directly on germination paper and gerboxes for 24 hours. Seeds of cultivars NA 5909 RG and Tec Irga 6070 RR were soaked in salicylic acid solutions with concentrations of zero, 250, 500, 750, 1000, 1500, 2000, 3000, 4000 and 5000 μM. Seed imbibition occurred in two ways: (1) germination paper moistened with salicylic acid solutions; (2) imbibition of the seeds in salicylic acid solutions in gerbox boxes for 24 hours and subsequent sowing on germinated paper moistened with distilled water. On the fifth day after sowing, the number of normal seedlings (first count), length, fresh and dry mass of root and shoot were determined. It was concluded that the concentrations of SA between 250 and 750 μM can be used in soybean seeds, however, above 1000 μM may impair the parameters of physiological quality. The gerbox method for 24 hours provided the best results without the drastic reduction of the parameters in the lowest concentrations of SA.

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