Effect of Storage

The increasing production and transport of wood chips rather than pulp logs as a source of pulp, the increasing proportions of sapwood of different species in these chips, and the storage of living parenchyma in the sapwood under aerobic conditions can lead to the formation of abnormal extractives. In addition, these conditions can result in abnormal discoloration of polyphenols, the oxidation products of which are much darker than the original substances. These changes, however, are likely to be less severe than the microbial deterioration of the wood 

The color changes that occur in a species are not always uniform. Normally the groundwood billets from logs of Eucalyptus regnans and E. delegatensis are cream in color. However, logs from variants of these species when cut open become pink or red within a few minutes and after a few days become dull brown and darker in color than the normal billets. The changes could be due to the presence of proanthocyanidins. 

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Figure 12.25. Effect of storage on the viscosity of PVC pastes using different plasticisers. (The...

Table IV. Effects of Storage Temperature on Color of Dehydrated Carrots...

Effect of Storage Condition Upon the Mechanical Properties of CTPB 2 Propellant P 426 Effect of Aging (70°) and Average Humidity During Processing/Testing upon, ... 

Fig 8 Effect of Storage Condition Upon the Mechanical Properties of CTPB 2 Propellant... 

Meat products have to be stabilised in some cases, as meat lipids contain no natural antioxidants or only traces of tocopherols. Most muscle foods contain, however, an efficient multi-component antioxidant defence system based on enzymes, but the balance changes adversely on storage. The denaturation of muscle proteins is the main cause of the inbalance as iron may be released from its complexes, catalysing the lipid oxidation. Salting contributes to the negative effects of storage, as it enhances oxidation. Using encapsulated salt eliminates the deleterious effect of sodium chloride. 

Turker, N. et al., Effect of storage temperature on the stability of anthocyanins of a fermented black carrot Daucus carota var. L.) beverage shalgam, J. Agric. Food Chem., 52, 3807, 2004. 

Gallardo-Guerreiro, L. et al., Effect of storage on the original pigment profile of Spanish virgin olive oil, J. Am. Oil Chem. Soc., 82, 33, 2005. 

Nicholson, J. W., Anstice, H. M. McLean, J. W. (1992). A preliminary report on the effect of storage in water on the properties of commercial light-cured glass-ionomer cements. British Dental Journal, 173, 98-101. 

Watts, D. C., Combe, E. C. Greener, E. H. (1979). Effect of storage conditions on the mechanical properties of polyelectrolyte cements. Journal of Dental Research, 58, Special Issue C, Abstract No. 18. 

DE Boer J and Smedes F (1997) Effects of storage conditions of biological materials on the contents of organochlorine compounds and mercury. Mar Poll Bull 35 93-108. 

White, J. W., Kushnir, I., and Subers, M. H. (1964). Effect of storage and processing temperatures on honey quality. Food Technol. 18, 555-558. 

De Campos, M., Santos, J. C., Olszyna-Marzys, A.,K., Aflatoxin contamination in grains from the Pacific Coast in Guatamala and the effect of storage upon contamination, Bull. Environ. Contam. Toxicol., 24, 789, 1980. (CA93 89863z)... 

Archival tissues stored as FFPE tissue blocks represent the vast majority of tissue archives. To investigate the effect of storage on shotgun proteomic analysis of FFPE tissues, we analyzed 10 samples dating back to 1980.22 Nine leiomyomas (three from 1990, three from 1997, and three from 2002) and one... 

Klimczak I, Malecka M, Szlachta M and Gliszczynska-Swiglo A. 2007. Effect of storage on the content of polyphenols, vitamin C and the antioxidant activity of orange juices. J Food Compos Anal 20(3 1) 313-322. 

Figure 11.1. Effect of storage temperature (0, 5, 10°C) on (I) total anthocyanins (mg/100 g FW), (II) total phenols (mg/100 g FW), and (III) antioxidant capacity measured as ORAC (p.mol TE/g FW) of strawberry fruit (cv. Chandler). Bars show the final values after treatments. Different letters on top of the bars indicate statistical differences among treatments (p < 0.05).

The effect of storage temperatures on total phenol compounds on strawberry fruit has been also reported (Ayala-Zavala and others 2004). Total phenol compounds increased in berries stored at 5°C and 10°C (Fig. 11.1, II). However, strawberry fruit stored at 0°C maintained a constant value of total phenol compounds during the storage period. Both temperature and storage time had a significant effect on total phenol compounds of strawberry fruits (Ayala-Zavala and others 2004). 

Ayala-Zavala JF, Wang SY, Wang CY and Gonzalez-Aguilar GA. 2004. Effect of storage temperatures on antioxidant capacity and aroma compounds in strawberry fruit. LWT Food Sci Technol 37(7) 687—... 

Table 1.1. Effects of storage on the concentration of arsenic and antimony in seawater (mg/1) [6]...

Nunez-Reguerira L, Barros N, Barja I. Effect of storage of soil at 4°C on the microbial activity studied by microcalorimetry. J. Therm. Anal. 1994 41 1379-1383. 

The effect of storage of water samples before determination of nitrogen and carbon associated with particulate matter was investigated. Freezing of the samples, and storage at 5°C, both affected the results obtained, but changes were minimized if the samples were filtered immediately after collection and the particulate matter stored on the filter paper. It is recommended that samples for determination of particulate carbon and nitrogen should be filtered immediately, and analysed as soon as possible. 

From Table III, the offensive nature of untreated sludge can again be seen. It is also clear that the effect of storage is most marked with secondary sludges. 

Scheduling Sludge Disposal—The Effect of Storage Time... 

Fig. 2 Effect of Storage on Odour Potential of some Sewage Sludges...

J. Swarbrick, G. Lee, and J. Brom. Drug permeation through human skin I. Effect of storage conditions of skin. J. Invest. Dermatol. 78 63-66 (1982). 

SPMDs. Use of this type of blank is generally limited to laboratories that assemble SPMDs. If the numbers of SPMD-fabrication blanks are inadequate, SPMD-process blanks can be used to determine analyte recovery and the precision of the overall analytical method. Also, this type of QC sample can be used for other purposes, such as determining potential effects of storage or changes in batches or lots of SPMD materials. 

This study has two goals The first one is to investigate the effects of storage on HMF formation and diastase activity of honey. Second one is to determine HMF level and formation kinetics of honey after heating process. For this purpose 40 samples of honey were collected from Middle Anatolia and surrounding areas. The physicochemical properties of honey collected were determined. The obtained data were compared with results of other researchers. 

Temperature of a storage facility can affect the production of biogenic amines. Pinho et al. (2001) conducted a study to investigate the effect of storage... 

Middlebrooks, B., Toom, P.M., Douglas, W.L., Harrison, R.E. and McDowell, S. (1988). Effects of storage time and temperature on the microflora and amine development in Spanish mackerel (Scomberomorus maculatus), J. Food Sci., 53, 1024. 

Zaborowska, Z., Uchman, W., Bilska, A., Jelen, H., Rudzinska, M., Wqsowicz, E. and Kummerow, F.A. (2001). Effect of storage on oxidation of cholesterol and lipids in liver pate type sausage, Electron. J. Polish Agricu. Universities, Series Food Sci. TechnoL, 4, 2. 

The effects of storage are reflected in the runoff regime (cf. Sect. 3.2.2). These storage depots help to offset shortages during dry periods. On the other hand, snow... 

Gangrade, B. K. and Dominic, C. J. (1986). Effect of storage and lyophilization on estrus-inducing capacity of male mouse urine. Indian Journal ofExperimental Biology 24,728-729. 

Edmunds and Eitenmiller (38) in a study of the effect of storage time and temperature on histamine content and histidine decarboxylase activity of several fresh water and marine species... 

Schwartz, M. K., Daniel, O., Ying, S. H., and Bodansky, O., Effect of storage in deep freeze upon activity of urinary acid phosphatase. Amer. J. Clin. Pathol. 26, 513-516 (1956). 

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