Tomatoes problems

Hydrogen chloride in air can also be a phytotoxicant (88). Tomatoes, sugar beets, and fmit trees of the Pmnus family are sensitive to HCl in air. Exposure of concentrated hydrochloric acid to the skin can cause chemical bums or dermatitis. Whereas the irritation is noticed readily, the acid can be water flushed from the exposed area. Copious use of miming water is the only recommended safety procedure for any external exposure. Ingestion is seldom a problem because hydrochloric acid is a normal constituent of the stomach juices. If significant quantities are accidentally swallowed, it can be neutrali2ed by antacids. 

The first known incidence of pollution from approved herbicides was identified in 1972 in Essex, where tomato plants grown by commercial producers became malformed. The plants had been watered from public water supplies fed from a reservoir. The reservoir in turn abstracted water from a river supplemented by a water transfer scheme, from the River Cam in Cambridgeshire. Pollution from a factory manufacturing 2,3,6-TBA was identified as the cause and the problem was subsequently resolved by treating the effluent. 

Miscellaneous Determinations. Several other problems are deserving of brief mention. The citrus industry, for example, would welcome an improved and more rapid method for determining volatile oil in citrus products. The tomato canning industry could profit by more rapid and accurate methods for determining tomato solids, and also by a method that would predict the increase in viscosity which takes place during concentration. 

Fusarium oxysporum fsp. radicis-lycopersici Jarvis and Shoemaker (FORE) (Jarvis and Shoemaker, 1978) [1] is a pathogen of tomato which, with the arrival of intensive tomato culture under glass, has developed to serious proportions [2]. This forma specialis of F. oxysporum affects largely the root and crown tissues of tomato and the symptoms occur as foot and root rot. FORL isolates are pathogenic on tomato plants with genes for resistance to races 1 and 2 of Fusarium oxysporum Schlecht. fsp. lycopersici (Sacc.) Snyd. Hans (FOL), that cause the common Fusarium wilt of the tomato. However, although resistance to FORL has been found and incorporated into commercial cultivars, the disease is a severe problem in wide areas of the North Hemisphere [3-9]. 

There is little toxicological data available for extracts of carrots, alfalfa, com oil, palm oil, tomatoes, etc. The JECFA had no objections to their use as food colorants provided that the levels of use did not exceed that normally present in vegetables. A number of toxicity experiments were conducted on Dimaliella algae in view of its increasing importance in the health food area. Twelve studies on D. salina indicated no problems. ( is beta-carotene was absorbed to a lesser extent than trans beta-carotene. Furahashi suggested a no-observed-effect level (NOEL) of 2.5 g kg/day for extracts from D. Hardawil 2 The Joint Expert Committee on Food Additives of the World Health Organization/United Nations (JECFA) did not establish an NOEL or an ADI because of the variation in the composition of the products. 

The tomato suck-fly, Dicyphus minimus (Uhl.), has been found to be a problem in tomato production in the state of Morelos. The use of DDT has given good results in the control of this pest. 

Oxidant problems are starting to be of concern to plant-breeders. Extensive varietal screening of tomato, petunia, and other plants has permitted some resistant cultivars to be recommended for use in high-oxidant areas. None of the varietal screens have involved breeding experiments in which resistant lines are developed and used in the development of resistant varieties for new introductions. 

The Problem Your recipe for lasagna calls for a 16-ounce jar (2 cups) of tomato sauce. You find a can of tomato puree (which you ll have to spice up a bit), and the can contains % liter of puree. How many cans of the puree will... 

Nevertheless, there are many questions still open because of problems to detect enzyme activities corresponding to each step of the pathway. The model of biosynthesis pathway was put together by studying the metabolism of exogenously applied intermediates in cell cultures of various origins and combining these results with data of native brassinosteroid patterns. It is more or less accepted that there are three pathways in parallel, the early and the late C6 oxidation pathway, as well as the 24/ -epimers follow ing the same route. Some observations in the analysis of native brassinosteroid patterns suggest a possible connection between the pathways. It was shown that seeds of Arabidopsis contain castasterone and 24-epi-brassinolide [34]. Also members of both 24-epimers, brassinolide and 24-epi-brassinolide were detected in tomato seeds [Winter, unpublished]. 

As the lipoproteins are depleted of triacylglycerol, the particles become smaller. Some of the surface molecules (apoproteins, phospholipids) are transferred to HDL. In the rat, remnants that result from chylomicron catabolism are removed by the liver. The uptake of remnant VLDL also occurs, but much of the triacylglycerol is further degraded by lipoprotein lipase to give the intermediate-density lipoprotein (IDL). This particle is converted into LDL via the action of lipoprotein lipase and enriched in cholesteryl ester via transfer from HDL by the cholesteryl ester transfer protein. The half-life for clearance of chylomicrons from plasma of humans is 4-5 min. Patients with the inherited disease, lipoprotein lipase deficiency, clear chylomicrons from the plasma very slowly. When on a normal diet, the blood from these patients looks like tomato soup. A very-low-fat diet greatly relieves this problem. 

My real turning point came when I moved to Hawaii, just after college. The local, seasonal, vegan diet was no problem, with papaya and bananas growing outside my window and tomatoes ripe year-round. But during dinner with my boyfriend one evening, I realized that something else had shifted. 

For example, it was demonstrated by such methods that phosphorus assimilated from the soil by tomato plants tends to concentrate in the stems and certain parts of the leaves. Similarly, radioactive zinc was used to show that this element localizes in the seeds of tomatoes. The rate of absorption of iodine by the thyroid gland was established by the use of radioactive iodine this and related work did much to add to the understanding of the diagnosis and treatment of goiter. These and many similar uses of radioactive isotopes show that these substances have been of inestimable value in the study of the mechanism of chemical reactions, problems relating to plant and animal metabolism, and the diagnosis and treatment of diseases. 

At present, the problem of food allergy becomes essential also in Europe and Poland. About l%-2% of the adult population and 5%-8% infants/children have problems with the IgE-mediated form of food allergy (Jtjdrychowski, 2003). These specific reactions are directed toward several proteins present in peanuts, milk, soy, tree nuts, fish, or egg white. From the results presented it follows that food allergies in sensitive patients may be caused by the allergens contained by many food products at the same time. In Poland, allergic reactions are most often induced by the proteins of milk, eggs, fish, meat, poultry, tomatoes, and potatoes. 

The problem of developing accurate data for chromium in biological samples is further complicated by the lack of Standard Reference Materials (SRM). Only recently have chromium certified materials, such as brewer s yeast (SRM-1569), bovine liver (SRM-1577), human serum (SRM-909), urine (SRM-2670), orchard leaves (SRM-1571), spinach leaves (SRM-1570), pine needles (SRM-1575), oyster tissue (SRM-1566), and tomato leaves (SRM-1573) been issued by the National Institute of Standards and Technology (formerly the National Bureau of Standards). Because of the lack of SRMs, the less recent data should be interpreted with caution (EPA 1984a), unless the data are verified by interlaboratory studies. 

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