Storage at 20C of skinned onion decreases sligthly pungency however three weeks storage at 0-2C did not change it Other results indicate that freezing at -25C and followed thawing led to large losses - reaching 75% of pungency found in the onion taken to the process Storage of the frozen onion caused further decrease its pungency Decrease of pungency during drying was depended on 17/02/2000The quantitative and qualitative evolution of the anthocyanins and volatile compounds of four raspberry cultivars (cvs Heritage Autumn Bliss Zeva and Rubi) growing in Spain were analyzed raw just frozen and during long-term frozen storage at −20 C for a 1 year period HS-SPME coupled with GC-MS and HPLC techniques were employed to study the evolution of the volatile compouds and the

Changes in texture of green peas during freezing and

The effects of freezing (still-air air-blast and Freon immersion freezing) and frozen storage (-5 degrees -10 degrees and -15 degrees C for 0 to 48 wk) on texture of cooked frozen peas were examined Peas frozen by a Freon-12 immersion method with no appreciable damage to cell structure had firmer and more chewy sensory textural quality compared to those peas frozen by a slower freezing

The effects of different storage conditions on the activity of antioxidant enzymes have not been well studied especially in premature human milk The main finding of our study is a decrease in antioxidant activity with storage both with refrigeration as well as freezing at the currently recommended temperatures Many milk components change with storage including immune cells which are

Soil freezing in winter has been shown to enhance growing season losses of C and N in northern forests However less is known about effects of soil freezing on C and N retention during snowmelt and the sources of C and N leached which is important because losses to stream water are greatest during this period Organic horizon soils (Oi + Oe

To identify an appropriate model for the description of effects of freezing on survival over time several models were fitted to the count data Decay was found to be nonlinear In general survival was least on skin better on skinned muscle and best on cut muscle After 2 weeks additional inactivation by freezing appeared to be negligible

Using impregnated and air-cooled two freezing methods to freeze fresh duck under the condition of-35 ℃ then storage at-18 ℃ for 5 months In order to study the quality changes in freezing and storaging process of frozen duck by different freezing rate thawing loss cooking loss shear force colour pH value TVB-N value and the total amount of bacteria were determined And then predicted the

Effect of freezing of sputum samples on flow cytometric

The data from this study suggest that freezing for intermediate storage of induced sputum has no major effects on the analysis of CD3 CD4 and CD8 lymphocyte subsets by flow cytometry Irrespective of minor differences in median values the correlation between native and frozen samples was high particularly with regard to these major subsets of interest

Over the last decade and half the optimization of cryopreservation for adipose tissue derived stromal/stem cells (ASCs) especially in determining the optimal combination of cryoprotectant type cooling rate and thawing rate have been extensively studied In this study we examined the functionality of ASCs that have been frozen-stored for more than 10 years denoted as long-term freezing

This study examined the storage and repeated freeze thaw effects on chemistry analytes pre-analytically According to our findings 14 analytes after storage and 10 analytes following freeze-thaw cycles showed clinically equivalent results In a comprehensive study by Jackson et al (9) clinically negligible biases were obtained in most of the routine clinical chemistry parameters following

Effects of freezing and thawing methods and storage time on thermal properties of freshwater prawns (Macrobrachium rosenbergii) Journal of the Science of Food and Agriculture 75: 37-44 Tejada M Moral A Borderias A J (1985) Preservation of sardine mince in the frozen state: mince obtained from whole headed and eviscerated fish

The effects of freezing on long-term storage of canine erythrocytes The effects of freezing on long-term storage of canine erythrocytes Aktaran Bala D zcan M 2016-06-01 00:00:00 Abstract Human medicine studies have so far demonstrated that erythrocytes may be preserved and stored at low temperatures for decades retaining their metabolic and biochemical properties

Study Design A biomechanical study of the compressive creep behavior of the human intervertebral disc before and after frozen storage Objectives To determine whether frozen storage alters the time-dependent response of the intact human intervertebral disc Summary of Background Data The b

This requires attention to all aspects of the application of low temperatures: from the choice of freezing container and cryoprotectant the cooling rate employed and its mode of delivery the correct handling of the frozen material during storage and transportation to the eventual thawing of the product by the end-user Each of these influences all of the others to a greater or lesser

Access the full text NOT AVAILABLE Lookup at Google Scholar Bibliographic information Language : English Type : Journal Article In AGRIS since : 1985 Volume : 28 Issue : 2 Start Page : 317 End Page : 324 All titles : Effects of blanching freezing and storage on folacin contents of spinach Save as: AGRIS_AP RIS EndNote(XML) Effects of blanching freezing and storage on folacin contents of

Effect of Freezing Period and Temperature for Lipid

Full Text PDF [583K] Abstracts References(48) Cited-By(1) Effects of a freezing period and frozen storage temperature on lipid oxidation of frozen Atlantic mackerel (Scomber scombrus Linnaeus) and frozen Chub mackerel (Scomber japonicus Houttuyn) during frozen storage were investigated The lipids contents of frozen Atlantic mackerel captured from Norway and frozen Chub mackerel captured from

A frozen soil scheme in which the soil ice content is solely determined by the available energy as in CLM2 0/SIMTOP should be modified to take into consideration the hydrologic effects of the supercooled soil water and relax the dependence of hydraulic properties on the soil ice content We proposed a modified frozen soil scheme that can produce more accurate magnitude and seasonality of

Conclusion: Storage temperature and multiple cycles of freezing (refrigeration)/thawing had minimal effects upon the viability of C difficile or its spores Storage at 4C has no discernible effect on C difficile cytotoxin However storage at −20C has a detrimental effect upon C difficile cytotoxin and multiple cycles of freezing and thawing may further adversely effect toxin titres

Our study increases knowledge on the impact of freezing at –20C the form of long-term storage used in virtually all neonatology units and human milk banks on the nutritional quality of breastmilk Two important aspects should be to take into account: On the one hand the importance of freezing and thawing deterioration and on the other hand the cumulative deterioration as the storage

Breast milk is often frozen for easy storage and transport while a mother is nursing her baby and NICUs keep the mothers' and donors' milk frozen for babies in hospitals around the world Thus there is ample research on the effects of freezing on human milk at different temperatures for various amounts of time Interestingly it is harder to pinpoint the freezing point or range for human

Freezing the fresh jujube fruit is one solution to solve the problem but decrease in flesh firmness of the frozen fruit after thawing is the major factor which affects the consumers acceptability of the frozen fruits A preliminary study was conducted to determine the effects of freezing methods and storage temperature on the fruit firmness Fresh jujube fruits ( Dongzao ) were frozen in cold

14/02/2018DNA methylation is a dynamic epigenetic mechanism Researchers aiming to assess archived DNA samples are expressing concern about the effect of technical factors on methylation as this may confound results We reviewed recent reports examining this issue in blood samples and concluded that variation in collection storage and processing of blood DNA confers negligible effects

Effects of various freezing and thawing techniques on pork quality in ready-to-eat meals Kwang-Il Kim1 frozen in an air blast freezer at temperatures that are lower (-30 to -50C) than that used for traditional freezing IQF can freeze individual or bulk samples of various food groups such as meat vegetables and fruits in less time (Jo et al 2014) Cryogenic freezing with liquid

08/10/2010Both subzero storage temperature as well as freezing rate were compared using control samples (4C) and samples stored at either -20C or -80C as well as samples first snap frozen in liquid nitrogen (-196C) prior to storage at -80C All samples were thawed at 37 5C to testing temperature (22C) Complex stiffness and hysteresis characterized load resistance and damping properties