Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Tomato, analysis

Heat Exchangers Using Non-Newtonian Fluids. Most fluids used in the chemical, pharmaceutical, food, and biomedical industries can be classified as non-Newtonian, ie, the viscosity varies with shear rate at a given temperature. In contrast, Newtonian fluids such as water, air, and glycerin have constant viscosities at a given temperature. Examples of non-Newtonian fluids include molten polymer, aqueous polymer solutions, slurries, coal—water mixture, tomato ketchup, soup, mayonnaise, purees, suspension of small particles, blood, etc. Because non-Newtonian fluids ate nonlinear in nature, these ate seldom amenable to analysis by classical mathematical techniques. [Pg.495]

In a Food and Dmg Administration (FDA) summary of the levels of pesticides in ready-to-eat foods in the 10-year period from 1982 to 1991, methyl parathion was found 12 times in 8 kinds of food, at an average concentration of 0.0035 ppm (Kan-Do Office and Pesticides Team 1995). A 5-year analysis of domestic and imported foods and animal feeds for the years 1982-1986 detected 94 samples out of 19,851 total samples that contained methyl parathion (Hundley et al. 1988). Eighty-nine of the samples had concentrations in the range of 0.05-0.5 ppm, and five had levels ranging from 1.0 to 2.0 ppm. Methyl parathion was found in celery, citms, coriander, cantaloupe, Chinese peas, hay, alfalfa feed, Italian squash, lettuce, mustard greens, okra, parsley, peppers, spinach, strawberries, tomatillos, and tomatoes. [Pg.160]

Expression of a tomato cDNA coding for phytoene synthase in Escherichia coli, ph)doene formation in vivo and in vitro, and functional analysis of the varions trimcated gene prodncts , J Biochem (Tokyo), 116, 980-85. [Pg.277]

A number of handbooks and monographs are available with detailed descriptions of a variety of plant products and their use (Shahidi and Naczk, 1995). From a more practical point of view, an interlaboratory comparison between six university and industry laboratories of 17 extracts of spices, teas, coffees, and grape skin and of tomato peel slurry established within the framework of an EU sponsored programme, would be of interest (Schwarz et al, 2001). In this collaboration, detailed chemical analysis of the content of different phenolic compounds is compared with six antioxidant assays for the 17 extracts including different extraction procedures. [Pg.340]

Etminan, M. et al.. The role of tomato products and lycopene in the prevention of prostate cancer a meta-analysis of observational studies. Cancer Epidemiol. Biomarkers Prev., 13, 340, 2004. [Pg.140]

Fray, R.G. and Grierson, D., Identification and genetic analysis of normal and mutant phytoene synthase genes of tomato by sequencing, complementation and co-suppression, Plant Mol. Biol. 22, 589, 1993. [Pg.391]

Rousseaux, M.C. et al., QTL analysis of fruit antioxidants in tomato nsing Lycoper-sicon pennellii introgression lines, Theoret. Appl. Genet. Ill, 1396, 2005. [Pg.397]

Topal, U. et al.. Extraction of lycopene from tomato skin with supercritical carbon dioxide effect of operating conditions and solubility analysis, J. Agric. Food Chem., 54, 5604, 2006. [Pg.500]

How might these oligomers be produced in the fruit The easiest answer is that limited PG action on cell wall pectins generates them, and we have tested this point in vitro. CDTA- and Na2C03-soluble pectins and PGA (included as a positive control) were incubated with purified tomato PGl. Surprisingly, only the carbonate-soluble material and PGA were digested (based on HPLC analysis of reaction mixtures and generation of... [Pg.213]

Figure 4. RNA Blot Analysis of pSubunit, PG, and D21 Expression during Fruit Development and Ripening. Total RNA (25 pg) isolated from the indicated tomato tissues was probed with eiAer a psubunit cDNA clone, a cDNA for the catalytic PG polypeptide, or a cDNA for the constitutively expressed mRNA D21. Identical specific activities were used in each hybridization and all blots were exposed for 8 hr. Figure 4. RNA Blot Analysis of pSubunit, PG, and D21 Expression during Fruit Development and Ripening. Total RNA (25 pg) isolated from the indicated tomato tissues was probed with eiAer a psubunit cDNA clone, a cDNA for the catalytic PG polypeptide, or a cDNA for the constitutively expressed mRNA D21. Identical specific activities were used in each hybridization and all blots were exposed for 8 hr.
Figure 9. Western analysis of P-subunit and PG2 antigen levels during tomato flower... Figure 9. Western analysis of P-subunit and PG2 antigen levels during tomato flower...
Isolation and Analysis of Multiple Tomato psubunit Genomic Clones and Related cDNAs from Arabidopsis. [Pg.259]

Tomato PGIP with respect to its molecular weight falls in between pear PGIP and bean PGIP [22]. The presence of G-linked glycosyl side chains carmot be ruled out, but initial MALDI-TOF and lectin analysis experiments indicate that for the bean PGIP, all carbohydrate is iV-linked. [Pg.280]

Residual pendimethalin in various crops was determined as follows." A 10-20-g amount of fruits or vegetables was extracted by blending twice with 200 mL of methanol. Grasses and mint were extracted with 200 mL of methanol-water (1 1, v/v). Nuts were extracted with 200 mL of n-hexane-2-propanol (3 1, v/v). For the residue analysis of the dinitroaniline herbicides butralin, dinitramine, ethalfluralin, pendimethalin, and trifluralin, a tomato sample (5 g) was extracted twice with 20 mL of methanol in a Sorvall homogenizer and filtered through filter paper. Benfluralin and trifluralin residues in the sample (10 g) were extracted with 100 mL of acetonitrile-water (99 1, v/v) in 250-mL screw-cap jars with Teflon liners rotated for 1 h on an end-over-end shaker (40 rpm). ... [Pg.391]

The minimum detectable level is estimated with the dinifroaniline signal-to-noise ratios (S/N). With fortification levels between 0.2 and 0.5mgkg the recovery of trifluralin from plant matrices is 70-99% with the LOD/LOQ being 0.005 mg kg according to the analytical method of the Ministry of the Environment, Japan. In multiresidue analysis by GC/NPD, the percent recoveries of pendimethalin from each crop with a fortification level of 0.25 mg kg were brown rice 70, potato 70, cabbage 80, letmce 89, carrot 84, cucumber 64, shiitake 74, apple 76, strawberry 99, and banana 99%. The LOD for each sample was 0.01 mg kg for pendimethalin. In residue analysis by GC/ECD, recoveries of the majority of dinifroaniline herbicides from fortified samples of carrot, melon, and tomato at fortification levels of 0.04—0.10 mg kg ranged from 79 to 92%. The LODs were benfluralin 0.001, pendimethalin 0.002 and trifluralin 0.001 mg kg for the GC/ECD method. ... [Pg.394]

GC/MS in the SIM mode was carried out for confirmation of all positive and ambiguous results obtained from GC analysis. GC/MS was effective as a multiresidue screening method for crops the mean recovery of trifluralin from green bean, cilantro, apple, tomato, and green onion at a fortification level of 0.25 mg kg was 55% and the LOD was 0.05 mg kg . ... [Pg.394]

A detailed analysis of the proton high field NMR spectra of tomato juice and pulp has recently been acquired [15]. The combination of suitable selective and two-dimensional techniques (J-resolved, COSY, TOCSY, DOSY, etc.) was used for... [Pg.476]

Figure 5. Regression analysis of tomato root growth inhibition with concentration (pPK)a-(T) g-Hydroxybenzaldehyde, y=41.39e (-) prunasin, y=38-51eD ° (A) g-Phydroxymandelonitrile, y=... Figure 5. Regression analysis of tomato root growth inhibition with concentration (pPK)a-(T) g-Hydroxybenzaldehyde, y=41.39e (-) prunasin, y=38-51eD ° (A) g-Phydroxymandelonitrile, y=...
Dropkin, V.H. and Boone, W.R. (1966) Analysis of host-parasite relations of root-knot nematodes by single larva inoculations of excised tomato roots. [Pg.170]


See other pages where Tomato, analysis is mentioned: [Pg.150]    [Pg.150]    [Pg.555]    [Pg.48]    [Pg.374]    [Pg.382]    [Pg.455]    [Pg.57]    [Pg.198]    [Pg.208]    [Pg.211]    [Pg.212]    [Pg.213]    [Pg.248]    [Pg.250]    [Pg.253]    [Pg.254]    [Pg.258]    [Pg.259]    [Pg.260]    [Pg.350]    [Pg.352]    [Pg.356]    [Pg.402]    [Pg.403]    [Pg.218]    [Pg.165]    [Pg.243]    [Pg.13]    [Pg.28]    [Pg.45]   
See also in sourсe #XX -- [ Pg.213 , Pg.214 , Pg.215 , Pg.216 , Pg.217 , Pg.218 , Pg.219 , Pg.220 ]




SEARCH



Analysis of Lycopene Stereoisomers in Tomato Extracts and Human Serum

Quantitative analysis, tomato volatiles

Tomatoe

Tomatoes

© 2024 chempedia.info