Physiology and firmness determination of ripening tomato fruit

1990 ◽  
Vol 78 (1) ◽  
pp. 8-14 ◽  
Author(s):  
M. Joseph Ahrens ◽  
Donald J. Huber
Keyword(s):  
Tomato Fruit

Physiology and firmness determination of ripening tomato fruit

1990 ◽  
Vol 78 (1) ◽  
pp. 8-14 ◽  
Author(s):  
M. Joseph Ahrens ◽  
Donald J. Huber
Keyword(s):  
Tomato Fruit

On the occurrence of the chrysanthemum eelworm, Aphelenchoides ritzema-bosi, in a tomato fruit

1941 ◽  
Vol 19 (3-4) ◽  
pp. 123-126
Author(s):  
T. Goodey ◽  
S. H. Bennett
Keyword(s):  
Tomato Fruit ◽  
Longitudinal Axis ◽  
Senior Author ◽  
Tomato Fruits ◽  
Stages Of Growth ◽  
Binocular Microscope ◽  
Eggs And Larvae ◽  
Good Number ◽  
Unusual Situation

The occurrence of the chrysanthemum eelworm, Aphelenchoides ritzema-bosi (Schwartz, 1911), in an unusual situation, namely within the tissues of tomato fruits, calls for brief report since, though well known as a leaf parasite of a good number of plants, it has not, to our knowledge, been reported previously from a fruit.Towards the end of October, one of us (S.H.B.) visited a grower who complained of having a number of tomato fruits from which the calyx tissue came away at the slightest touch. These fruits then rotted deeply towards the centre. Two such fruits were taken from the store for examination in the laboratory. One of them was attacked by the fungus Didymella Lycopersici whilst the other was found to contain eelworms. This fruit was sent by S.H.B. to T.G. with a request for a determination of the species of eelworm present and an opinion on whether it was a parasitic species or not.On receipt of the fruit the senior author cut it in two by a cut passing along the longitudinal axis from the calyx region and through the central fleshy placenta. It was then seen that the discoloured diseased area was about ¼ in. deep by about ⅝ in. broad and occupied much of the solid fleshy base of the fruit. On teasing up a small portion of the diseased tissues in water and examining under the binocular microscope, considerable numbers of small eelworms were found together with numerous eggs and larvae in various stages of growth.

Determination of bruise susceptibility of tomato fruit by means of an instrumented pendulum

2006 ◽  
Vol 40 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Veerle Van linden ◽  
Bart De Ketelaere ◽  
Michèle Desmet ◽  
Josse De Baerdemaeker
Keyword(s):  
Tomato Fruit ◽  
Bruise Susceptibility

scholarly journals QUANTITATIVE ANALYSIS OF FLAVOR VOLATILES AND OTHER PARAMETERS IN TWO TOMATO VARIETIES DURING RIPENING

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1090d-1090
Author(s):  
Elizabeth A. Baldwin ◽  
Myrna O. Nisperos-Carriedo ◽  
Manuel G. Moshonas
Keyword(s):  
Quantitative Analysis ◽  
Lycopersicon Esculentum ◽  
Organic Acids ◽  
Volatile Compounds ◽  
Tomato Fruit ◽  
Lycopersicon Esculentum Mill ◽  
Flavor Components ◽  
Ripening Stages

Whole tomato fruit (Lycopersicon esculentum Mill.), cvs. Sunny and Solarset, were analyzed at 5 different ripening stages for ethylene and CO2 production. Homogenates from the same fruit were prepared for determination of color, flavor volatiles, sugars and organic acids. Of the flavor volatiles measured, only eugenol decreased during ripening in both varieties and 1-penten-3-one in `Sunny' tomatoes. Ethanol, and trans-2-trans-4-decadienal levels showed no change or fluctuated as the fruit matured while all other volatiles measured (cis-3-hexenol, 2-methyl-3-butanol, vinyl guiacol, acetaldehyde, cis-3-hexenal, trans-2-hexenal, hexanal, acetone, 6-methyl-5-hepten-2-one, geranylacetone and 2-isobutylthiazole) increased in concentration, peaking in the later stages of maturity. Synthesis of some volatile compounds occurred simultaneously with that of climacteric ethylene and color. `Solarset' fruit exhibited higher levels of sugars and all flavor components except ethanol, vinyl guiacol, hexanal and 2-methyl-3-butanol in the red stage. There were no differences between these varieties for acids

ETHYLENE METABOLISM IN TOMATO FRUIT: II. DETERMINATION OF TOTAL AND C14-LABELLED ETHYLENE

1958 ◽  
Vol 36 (6) ◽  
pp. 595-601 ◽  
Author(s):  
Mary S. Spencer
Keyword(s):  
Ethylene Glycol ◽  
Gas Flow ◽  
Tomato Fruit ◽  
Liquid Sample

A method has been developed for the determination of the radioactivity from C14-labelled ethylene absorbed in aqueous mercuric perchlorate – ethylene glycol. Counting was done on a liquid sample in a gas flow counter. This procedure was designed for the analysis of C14-labelled ethylene evolved by fruit to which possible ethylene precursors had been administered. Total ethylene could be measured manometrically on the same sample. The manometric procedure permitted analysis for ethylene in quantities evolved by one or two tomatoes or other fruit.

Determination of the respiration rate of tomato fruit using flow analysis

2001 ◽  
Vol 22 (3) ◽  
pp. 249-256 ◽  
Author(s):  
Fagoni F Calegario ◽  
Ricardo G Cosso ◽  
Fernanda V Almeida ◽  
Anibal E Vercesi ◽  
Wilson F Jardim
Keyword(s):  
Respiration Rate ◽  
Tomato Fruit ◽  
Flow Analysis

A trace analysis method based on HPLC-MS/MS for the simultaneous determination of residues of the two isomers of pyrisoxazole in tomato fruit and soil

2016 ◽  
Vol 8 (9) ◽  
pp. 2041-2047 ◽  
Author(s):  
He Zhu ◽  
Fuyan Jia ◽  
Qi Ding ◽  
Chengtian Huang ◽  
Yang Yu ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
High Performance ◽  
Tomato Fruit ◽  
Accurate Method ◽  
Tandem Mass ◽  
Analysis Method ◽  
Soil P ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass

A simple, sensitive and accurate method for the simultaneous determination of residues of the two isomers of pyrisoxazole in tomato fruit and soil was established using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).

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