TOMATO FRUIT PROPERTIES AFFECTING CONSISTENCY OF CONCENTRATED PRODUCT

1987 ◽  
Vol 67 (3) ◽  
pp. 881-890 ◽  
Author(s):  
WILLARD P. MOHR
Keyword(s):  
Lycopersicon Esculentum ◽  
Tomato Fruit ◽  
Flow Characteristics ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Total Solids ◽  
Lycopersicon Esculentum Mill ◽  
Apparent Loss ◽  
Tomato Product ◽  
Solids Content

Fruit properties of tomato (Lycopersicon esculentum Mill.) that determine the flow characteristics of the concentrated product were associated mainly with water-insoluble solids content and serum viscosity. Levels of total (mostly soluble) solids had much less effect on product flowability. Soluble and total solids levels fluctuated widely between and within seasons, increasing during periods of low rainfall and vice versa. Water-insoluble solids content appeared to be mainly cultivar-dependent, and only minimally influenced by moisture and other climatic conditions. Levels of all three solids fractions and serum viscosity differed characteristically from one cultivar to another. Cultivars also differed with respect to apparent loss of water-insoluble solids and serum viscosity during the concentration process.Key words: Tomato, product, consistency, viscosity, solids, serum

Use of Lycopersicon cheesmanii and L. chmielewskii to increase dry matter content of tomato fruit

1993 ◽  
Vol 73 (1) ◽  
pp. 273-279 ◽  
Author(s):  
V. Poysa
Keyword(s):  
Lycopersicon Esculentum ◽  
Dry Matter ◽  
Tomato Fruit ◽  
Fruit Size ◽  
Fruit Yield ◽  
Soluble Solids ◽  
High Yield ◽  
Dry Matter Content ◽  
Total Solids ◽  
Solids Content

Advanced lines and backcrosses from interspecific hybridization of processing tomato (Lycopersicon esculentum Mill.) with six L. chmielewskii (Rick, Kesicki, Fobes and Holle) and L. cheesmanii (Riley) accessions were evaluated in the field over 2 yr for soluble solids content (SSC), total solids content (TSC), fruit yield and fruit size to determine the effectiveness of combining elevated solids levels with high fruit yield and size following early generation selection. More than a quarter of the lines had significantly higher SSC levels than the recurrent tomato parent, Purdue 812 (P812). Several lines combined high SSC and TSC with high fruit yield and large fruit size to produce more dry matter yield per hectare or per fruit than P812. Two backcrosses were optimal for combining high SSC and high yield. SSC and TSC were negatively correlated with fruit size and, to a lesser degree, with fruit yield. Key words: Lycopersicon esculentum, soluble solids, total solids

scholarly journals Performance of resistant varieties (PIWI) at two different altitudes in Southern Brazil

2019 ◽  
Vol 12 ◽  
pp. 01021
Author(s):  
A.L.K. de Souza ◽  
A.F. Brighenti ◽  
E. Brighenti ◽  
V. Caliari ◽  
M. Stefanini ◽  
...  
Keyword(s):  
Climatic Conditions ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Southern Brazil ◽  
Wine Quality ◽  
Phenological Stages ◽  
Lower Altitude ◽  
Grape Quality ◽  
Resistant Varieties ◽  
Solids Content

In southern Brazil there is a predominance of labrusca and hybrid varieties for wine and juice production due to climatic conditions of high rainfall, temperature and relative humidity. Growing varieties that combine disease resistance and wine quality (PIWI) can be an alternative to improve wine quality. The objective of this work was to evaluate the performance of three PIWI varieties (Felicia, Calardis Blanc and Aromera) in two regions (Videira, 27∘01′S and 51∘08′W, altitude 830 m; and São Joaquim, 28∘13′S and 50∘04′W, altitude 1100 m) in the vintage 2018. The date of occurrence of main phenological stages, productiveindexes, clusters characteristics and grape qualitative indexes was evaluated. There was no difference for budbreak date, but flowering, veraison an maturity time varied between regions. The development of plants is slower when they are cultivated at a higher altitude. The number of clusters per plant and yield were higher at 830 m for all varieties. For productive indexes Felicia and Calardis Blanc varieties stood out in relation to Aromera in all parameters. Among the evaluated varieties, Felicia and Calardis Blanc were better adapted to the lower altitude region and had higher productivity and the same grape quality. On the other hand, Aromera presented higher productivity at 830 m but higher soluble solids content at 1100 m.

scholarly journals Effects of treated agro-industrial wastewater irrigation on tomato processing quality

2015 ◽  
Vol 10 (2) ◽  
pp. 97 ◽  
Author(s):  
Giuseppe Gatta ◽  
Angela Libutti ◽  
Anna Gagliardi ◽  
Grazia Disciglio ◽  
Luciano Beneduce ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Tomato Fruit ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Treated Wastewater ◽  
Long Term Effects ◽  
Tomato Production ◽  
Tomato Processing ◽  
Solids Content

This study was designed to determine the qualitative and microbiological impact of two different sources of irrigation water on tomato fruit: groundwater (GW), as the control, and treated agro-industrial wastewater (SW). The mean tomato fruit quality parameters of dry matter, weight, diameter, colour index, pH, soluble solids content, titratable acidity, Ca<sup>2+</sup> and Na<sup>+</sup> content were not significantly affected by the different water treatments. Conversely, NO<sub>3</sub> <sup>–</sup> contents was significantly higher with GW use, than with SW (2.21 <em>vs</em> 1.62 mg 100 g<sup>–1</sup>, respectively; P≤0.05). The microbial quality of the tomato fruit was not significantly different across the GW and SW treatments, with no <em>Salmonella</em> spp. isolated from any of the fruit, and the faecal indicators always below 10 CFU g<sup>–1</sup>. These data show that agro-industrial treated wastewater can be used for irrigation for industrial tomato production once the long-term effects on the agroecosystem have been defined.

Soil thermal and productive responses of biodegradable mulch materials in a processing tomato (Lycopersicon esculentum Mill.) crop

Soil Research ◽  
2016 ◽  
Vol 54 (2) ◽  
pp. 207 ◽  
Author(s):  
Marta M. Moreno ◽  
Alicia Cirujeda ◽  
Joaquín Aibar ◽  
Carmen Moreno
Keyword(s):  
Lycopersicon Esculentum ◽  
Soil Temperature ◽  
Agricultural Sector ◽  
Crop Yields ◽  
Total Yield ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Barley Straw ◽  
Processing Tomato ◽  
Lycopersicon Esculentum Mill

Mulch materials of different origin and colour are available in the agricultural sector as sustainable alternatives to the use of polyethylene (PE). Mulching modifies soil temperature and consequently affects crop yields. This work assessed the thermal and productive responses of different mulch materials in two different geo-climatic conditions during a 3-year integrated field study on processing tomato (Lycopersicon esculentum Mill.). Two biodegradable plastic mulches (BD1, BD2), one oxo-degradable material (OB), two types of paper (PP1, PP2) and one barley-straw cover (BS) were compared with two control treatments: black PE and manual weeding (MW). Soil temperature variables (maximum, minimum and mean temperature, soil growing degree-days and soil temperature amplitude) and production variables (marketable and total yield, mean fruit weight) were considered. Thermally, PE could be considered an atypical mulch causing higher temperatures in the soil, but it is not associated with a higher yield. Responses of PE, PP2 and MW were independent of the geo-environmental conditions, whereas OB, BD1 and BD2 had similar thermal and productive responses to each other in different environments. Tomato yield was correlated positively only with the minimum soil temperature, especially when excluding PE.

FRUIT DISORDER OF GLASSHOUSE TOMATOES CAUSED BY A TOBACCO FORM OF TOBACCO MOSAIC VIRUS

1975 ◽  
Vol 55 (2) ◽  
pp. 597-604
Author(s):  
W. R. ALLEN ◽  
K. C. CHADHA
Keyword(s):  
Lycopersicon Esculentum ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Tomato Fruit ◽  
Cross Protection ◽  
Mature Fruit ◽  
Leaf Stage ◽  
Lycopersicon Esculentum Mill ◽  
Dark Green

A severe fruit disorder of tomato (Lycopersicon esculentum Mill.) was induced with a tobacco form of tobacco mosaic virus isolated from blemished tomato fruit (cv. Ohio WR25) from a glasshouse crop in southwestern Ontario. Symptoms on green tomatoes consisted of slightly sunken, pale or yellowish-brown lesions with a thin, dark green margin. Lesions frequently expanded and coalesced along the flutes. The shoulders of the fruit were the most extensively affected areas. On mature fruit, the lesions appeared either silvery or silvery-brown and generally had a scabby appearance due to cracking and lifting of the surface tissues. Lesions were superficial and internal symptoms were not detected. First-truss inoculations prevented or delayed the fruit disorder. Inoculations at truss stages two, three, and four, however, resulted in development of affected fruit on inoculated as well as lower and subsequent trusses with the exception of the first truss. Similar susceptibilities to the fruit disorder occurred among the glasshouse cultivars Michigan Ohio (Burghart strain), Ohio WR25, Vantage, Veegan, and Vendor. No cross protection against the fruit disorder was provided by a mild tomato form of TMV introduced at the second-leaf stage.

scholarly journals Analysis of the molecular size of tomato (Lycopersicon esculentum Mill) fruit polyuronides by gel filtration and low-speed sedimentation equilibrium

1987 ◽  
Vol 245 (2) ◽  
pp. 463-466 ◽  
Author(s):  
G B Seymour ◽  
S E Harding
Keyword(s):  
Cell Wall ◽  
Lycopersicon Esculentum ◽  
Tomato Fruit ◽  
Gel Filtration ◽  
Molecular Size ◽  
Sedimentation Equilibrium ◽  
Low Speed ◽  
Lycopersicon Esculentum Mill ◽  
Wall Structures ◽  
Molecular Size Distribution

The cell-wall structures of tomato (Lycopersicon esculentum Mill) and other fruit are intimately linked with the nature of their polyuronides. Cell-wall polyuronides from unripe and ripe tomato fruit were isolated and purified and their molecular size and molecular-size distributions were compared. It was demonstrated that there is a considerable decrease in the weight-average Mr upon ripening (from 160,000 +/- 10,000 to 96,000 +/- 4000) and a corresponding increase in polydispersity, particularly at the low-Mr end of the distribution. The estimates of polyuronide molecular size and molecular-size distribution were obtained without the need for polyuronide standards of known Mr by using gel-filtration chromatography combined with the absolute method of low-speed sedimentation equilibrium.

scholarly journals BIOCHEMICAL AND PHYSIOLOGICAL CHANGES OF CALLUS GROWTH AND LYCOPENE PIGMENT PRODUCTION FROM TOMATO (Lycopersicon esculentum Mill.) UNDER DROUGHT STRESS

2018 ◽  
pp. 7-21
Author(s):  
Talib Khashan Kareem ◽  
Abbas Tikki Karrar
Keyword(s):  
Drought Stress ◽  
Lycopersicon Esculentum ◽  
Callus Tissue ◽  
Tomato Fruit ◽  
Sugar Content ◽  
Mother Plant ◽  
Ms Medium ◽  
Lycopersicon Esculentum Mill

This experiment was conducted in faculty of Science labs, Kufa University, carried out during 2015 to applied methods for extraction, purification and Quantitative of Lycopene red pigments, from callus tissue and tomato fruits mother plant (Lycopersicon esculentum Mill).This study include of three parts, Firstly; Tomato seeds(Supper queen) hybrid were germinated in free MS medium and callus induction from shoot tip (3cmpieces) by using MS medium supplemented with Dichlorophenoxiactic acid (2,4-D) at different concentration (0.5,1, 1.5mg/l)with benzyl adenine (BA) at concentration of (0.3 mg/l). Secondly; identically callus fresh weight re-cultured in the same MS medium supplemented with high molecular weight polyethylene glycol (PEG) was used as selective agent at level of (5,10,15 and 25%). Thirdly; comparisons study were made between in vitro and in vivo grown plant. Powder of control lycopene used as standard solution. The content of lycopene was done by using high performance liquid chromatography (HPLC), and compare of the quantitatively of lycopene with these content in fruits of mother plant, and callus tissue. Also, include alcohol extraction of Lycopene from tomato fruit by using acetone and hexane mixture. The result showed significant increased (P< 0.05) of lycopene production and the superiority of lycopene content in callus than the content in fruits of mother plant. Antioxidant enzymes activity like Catalase (CAT),Guaiacol peroxidise (POX) and Superoxide dismutase(SOD) were high in callus under drought stress than in fruit of mother plant. However, Proline and total sugar content were at higher levels in callus under drought stress than in fruit of mother plant.

scholarly journals HETEROSIS FOR SOME CHARECTERIBSTICE OF TOMATO FRUIT (LYCOPERSICON ESCULENTUM MILL).

2012 ◽  
Vol 3 (7) ◽  
pp. 2057-2067
Author(s):  
S. El-Afifi ◽  
A. Hamail ◽  
A. Wahba ◽  
P. Abd - Elmalek
Keyword(s):  
Lycopersicon Esculentum ◽  
Tomato Fruit ◽  
Lycopersicon Esculentum Mill
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