Strawberries processing

Truchado P, Larrosa M, Garcia-Conesa MT, et al. Strawberry processing does not affect the production and urinary excretion of urolithins, ellagic acid metabolites, in humans. / Agric Food Chem. 2011 60 5749-5754. 

Postharvest treatment conditions in order to extend berries shelf-life can exert a strong influence on bioactivity of compoimds. Postharvest storage can affect anthocyanins, phenolic compounds levels, and antioxidant capacity in berries. Controlled atmosphere (CA) storage of strawberries did not affect anthocyanins content in external tissues but decreased anthocyanins content in internal tissues (Holcroft and Kader 1999). Processing also has a marked influence on phenolic content and antioxidant capacity in fmits. Strawberry processing to produce jams... 

Tian M. Gu Q. Zhu M. (2003) The involvement of hydrogen peroxide and antioxidant enzymes in the process of shoot organogenesis of strawberry callus / / Plant Science. V. 165. P. 701-707. 

Abers, J.E. and Wrolstad, R.E., Causative factors of color deterioration in strawberry preserves during processing and storage, J. Food ScL, 44, 75, 1979. 

Diffusion-mediated release of root exudates is likely to be affected by root zone temperature due to temperature-dependent changes in the speed of diffusion processes and modifications of membrane permeability (259,260). This might explain the stimulation of root exudation in tomato and clover at high temperatures, reported by Rovira (261), and also the increase in exudation of. sugars and amino acids in maize, cucumber, and strawberry exposed to low-temperature treatments (5-10°C), which was mainly attributed to a disturbance in membrane permeability (259,262). A decrease of exudation rates at low temperatures may be predicted for exudation processes that depend on metabolic energy. This assumption is supported by the continuous decrease of phytosiderophore release in Fe-deficient barley by decreasing the temperature from 30 to 5°C (67). 

At a minimum, the processing phase must identify the RAC to be processed and the processed fractions to be produced. Other essential information is the quantity of the RAC to be delivered to the processor and an indication of the quantity of the processed fractions to be produced. The minimum quantity of each processed fraction is driven by the requirement of the analytical laboratory and in most cases includes a substantial excess allowance. The minimum quantity of RAC to be processed may be driven by the amount of processed commodity to be produced or the minimum raw material requirements of some processes or equipment to be used. Another factor to be considered in establishing minimum amounts of both RAC and processed fractions is the amount required for a representative sample. An amount of 10 lb of strawberries may provide a representative sample of an experimental plot, whereas the same amount of pumpkins almost certainly would not. 

Alfalfa, apples, blueberries, mint, peaches, strawberries and sugarcane, their processed fractions, and soil Gas-chromatographic determination... 

Patras A, Brunton NP, DaPieve S and Butler F. 2009. Impact of high pressure processing on total antioxidant activity, phenolic, ascorbic acid, anthocyanin content and colour of strawberry and blackberry puree. Innov Food Sci Emerg Technol doi 10.1016/j.ifset.2008.12.004. 

Brimar, H. 2002. In A Study of Differently Processed Fruit-Preparations Used for Manufacturing Strawberry Yoghurt . Master of Science Thesis, Lund University, Sweden and I.V.T.P.A., Milano, Italy. 

Di Cesare, L.F., Torreggiani, D., and Bertolo, G. 1999. Preliminary study of volatile composition of strawberry slices air dried with or without an osmotic pre-treatment. In Proceedings of the V Plenary Meeting of Concerted Action FAIR-CT96-1118, Improvement of Overall Food Quality by Application of Osmotic Treatments in Conventional and New Process , pp. 39-44. Valencia, Spain. 

Moreno, J., Chiralt, A., Escriche, L, and Serra, J.A. 2000. Effect of blanching/osmotic dehydration combined methods on quality and stability of minimally processed strawberries. Food Res. Int. 33, 609-616. 

A forbidden period is also recommended for each systemic insecticide. During this period natural processes of detoxication are going on within the plant. This is different for each plant and depends upon the climate. Broadly speaking, for strawberries in the northern hemisphere during the summer, the recommended interval between spraying and harvesting of strawberries, brussels sprouts, fruit trees and hops is about 5 weeks. 

Stralsjo, L. M., Witthoft, C. M., Sjoholm, I. M., Jagerstad, M. I. (2003). Folate content in strawberries (Fragaria X ananassa) effects of cultivar, ripeness, year of harvest, storage, and commercial processing. J. Agric. Food Chem., 51, 128-133. 

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