Application of VIS-NIR reflectance spectra for estimating soluble solid and lycopene content of open-field processing tomato fruit juice from irrigation and mycorrhiza treatments

Tomato (Solanum lycopersicum L.) is one of the most extensively cultivated horticultural crops in the world. Factors such as yield, size, taste, and lycopene content are important criteria that may impact the selection of tomato cultivars for different production systems. The aim of the current study was to evaluate different slicer and cherry tomato cultivars for production under greenhouse and open field conditions. Three cultivars of slicer (BHN 964, Trust, and Geronimo) and cherry (BHN 268, Favorita, and Sakura) tomatoes were tested using randomized complete block design in 2019 and 2020. Results showed that the performance of tested cultivars differed under greenhouse verses open field conditions. Among cherry tomato cultivars in 2020, BHN 268 and Sakura produced significantly greater yield under open field conditions, while under greenhouse conditions yield of BHN 268 was the lowest. Similarly, cherry tomato fruit size from ‘BHN 268’ and ‘Sakura’ was also significantly greater than ‘Favorita’ under field conditions, whereas under greenhouse conditions, the fruit size of ‘Sakura’ was significantly greater than both ‘BHN 268’ and ‘Favorita’. Among slicer tomato cultivars, BHN 964 produced significantly greater yield and had a greater average fruit size than the other two cultivars under greenhouse conditions in 2020 while, Geronimo produced significantly similar or larger yield and had a similar average fruit size compared with BHN 964 under open field conditions. Tomatoes produced under open field conditions were rated significantly greater for taste compared with those produced under greenhouse conditions. Lycopene content in both slicer and cherry tomato cultivars was influenced by the interaction of production type, cultivars, and harvest time. Therefore, it can be concluded that BHN 964 and Geronimo were the highest in lycopene among slicer tomato cultivars for greenhouse and open field production, respectively. Among cherry tomato cultivars, BHN 268 was the highest in lycopene for open field production and Sakura for greenhouse production. Additionally, open field–produced tomatoes taste better than greenhouse-produced tomatoes, but lycopene content may be constrained for mid- and late-season fruits due to high temperature conditions under open field conditions.

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APPLICATION OF VIS-NIR REFLECTANCE SPECTRA FOR ESTIMATING WATER SUPPLY EFFECT ON OPEN FIELD PROCESSING TOMATO

Acta Horticulturae ◽

10.17660/actahortic.2015.1081.23 ◽

2015 ◽

pp. 191-195 ◽

Cited By ~ 2

Author(s):

P. Szuvandzsiev ◽

Z. Pék ◽

C. Szántó ◽

L. Helyes

Keyword(s):

Water Supply ◽

Open Field ◽

Reflectance Spectra ◽

Processing Tomato ◽

Supply Effect

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Analysis of Antioxidant Compounds and Hydroxymethylfurfural in Processing Tomato Cultivars

HortTechnology ◽

10.21273/horttech.16.4.0615 ◽

2006 ◽

Vol 16 (4) ◽

pp. 615-619 ◽

Cited By ~ 7

Author(s):

Lajos Helyes ◽

Zoltán Pék ◽

Sára Brandt ◽

Andrea Lugasi

Keyword(s):

Tomato Fruit ◽

Total Antioxidant Status ◽

Weather Conditions ◽

Antioxidant Compounds ◽

Total Polyphenols ◽

Processing Tomato ◽

Significant Difference ◽

Total Antioxidant ◽

Lycopene Content ◽

Tomato Cultivars

Tomato (Lycopersicon esculentum) fruit is an important source of antioxidants, which are important in the prevention of many cancer types and cardiovascular diseases. In ripe tomato fruit, one of the most significant antioxidant compounds is lycopene. In this study, effects of the cultivars and the environmental conditions on the lycopene content were investigated. Temperature effect was characterized by calculating growing degree-day (GDD). Relationships among lycopene, total polyphenols, organic acid, and total antioxidant status (TAS) were analyzed. A variation of more than 30% was found among the lycopene levels of five processing tomato cultivars. Lycopene content ranged from 79.7 to 155.0 mg·kg–1 fresh weight. There was a significant difference between the lycopene concentrations of fruit harvested at two different dates. The values were higher at the second harvest, probably due to the cooler weather conditions preceding that harvest. Total polyphenols correlated strongly with TAS but the other antioxidants did not have any relationship to TAS. GDD were strongly and positively correlated with hydroxymethylfurfural content in fresh tomatoes.

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Design of Control System for Hydraulically Vibrated Processing Tomato Fruit Seedling Separation Device

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.651-653.693 ◽

2014 ◽

Vol 651-653 ◽

pp. 693-696

Author(s):

Li Hong Wang ◽

Rong Qing Liang ◽

Cheng Song Li ◽

Za Kan ◽

Jin Wei Qin

Keyword(s):

Tomato Fruit ◽

Simulation Software ◽

Signal Frequency ◽

System Control ◽

Frequency Range ◽

Hydraulic Simulation ◽

Separation Device ◽

Processing Tomato ◽

Input Signal Frequency ◽

Set Up

Eccentric style processing tomato fruit seeding separation device exist high machining and assembly precision or other issues. In order to solve this problem, the mode of vibration of hydraulic replaced the eccentric style to drive the fruit seedling separation roller to separate processing tomato effectively. To facilitate adjustment of the hydraulic system, a kind of control circuit PLC as the core was designed according to the actual production requirements. PLC and other elements were selected. The system control signal frequency was initially set up as 1~5 HZ, within the frequency range hydraulic simulation software was used to simulate and analyze the hydraulic vibration system. The result shows that the system rams steady when the input signal frequency range was 1~5HZ.

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The effect of the blue light on the pericarp cell growth and lycopene content of cherry tomato (Solanum lycopersicum var. cerasiforme) fruit

Science and Technology Development Journal - Natural Sciences ◽

10.32508/stdjns.v4i4.891 ◽

2020 ◽

Vol 4 (4) ◽

pp. First

Author(s):

Dien Thi Kieu Pham ◽

Kiet Thuong Do ◽

Sanh Du Nguyen

Keyword(s):

Blue Light ◽

Tomato Fruit ◽

Fruit Size ◽

Total Content ◽

Fruit Growth ◽

Cell Diameter ◽

Cherry Tomato ◽

Blue Filter ◽

Lycopene Content

The cherry tomato fruit size depends on the growth of the pericarp which is parenchymal cells. The blue light stimulates the expansion of cotyledon cells, hypocotyl cells and leaf cells. In this study, the cherry tomato fruit was used as a material to investigate the effects of the blue light on the pericarp cells growth in fruit growth stage and lycopene accumulation in fruit growth and ripening stage. After 7 days of the blue light (440, 450 or 460 nm) treatment, pericarp cells growth and physiological, biochemical changes of the pericarp cells of 7-day-old fruit pericarp piece in vitro were analyzed. The lycopene content and some organic compound contents of 42-day-old postharvest fruits treated by the blue light similarly in 7 days and 7, 21-day-old fruit wrapped with blue filter (440-510 nm filtered) in 7 days were measured. The results showed that the 450 nm wavelength blue light the increased pericarp thickness of 7-day-old fruits through the increasement of the pericarp cell diameter. The 460 nm wavelength blue light the increased lycopene content of 42-day-old postharvest fruits. The blue filter treatment increased the sugar total content of 7- day-old fruits and increased the lycopene content of 21-day-old fruits.

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