Physical and mechanical properties of locally cultivated tomatoes in Sunyani, Ghana

Uba, Felix; Esandoh, Eric Osei; Zogho, Donatus; Anokye, Eric Gyimah

doi:10.1016/j.sciaf.2020.e00616

Cited by 7 publications

(4 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Freshly matured tomatoes of 500 numbers from each variety PKM 1, Lakshmi, CO.3, and Roma were procured from Tamil Nadu Agricultural University, India for the study (Figure 1). The physical properties, which are important in designing color sorter cum grader such as size (Li et al, 2011), sphericity ( ϕ ), arithmetic mean diameter ( D a ), and geometric mean diameter ( D g ) were determined using the equation as described by Uba, Esandoh, Zogho, and Anokye (2020),

D_{a} goodbreak= \frac{(L + B + T)}{3},

D_{g} goodbreak= {(L \times B \times T)}^{\frac{1}{3}},

φ goodbreak= \frac{{((), LBT)}^{\frac{1}{3}}}{L},

where D a is the arithmetic mean diameter in mm, D g is the geometric mean diameter in mm, φ is the sphericity in percentage, L is the length in mm, B is the Breadth in mm, and T is the Thickness in mm.…”

Section: Methodsmentioning

confidence: 99%

“…Freshly matured tomatoes of 500 numbers from each variety PKM 1, Lakshmi, CO.3, and Roma were procured from Tamil Nadu Agricultural University, India for the study (Figure 1). The physical properties, which are important in designing color sorter cum grader such as size (Li et al, 2011), sphericity (ϕ), arithmetic mean diameter (D a ), and geometric mean diameter (D g ) were determined using the equation as described by Uba, Esandoh, Zogho, and Anokye (2020),…”

Section: Physical Properties Of Tomatoesmentioning

confidence: 99%

See 1 more Smart Citation

Development of a farmer‐friendly portable color sorter cum grader for tomatoes

Rajkumar

Abinaya

Deepa

et al. 2021

J Food Process Engineering

View full text Add to dashboard Cite

Tomato (Solanum lycopersicum) is a major horticulture crop grown worldwide. The ripened tomatoes are excellent source of antioxidants. On the other hand, the transportation of ripened tomatoes to long distances is a challenging task. However, the unripe tomatoes are opted for long-distance transportation because of their extended shelf-life.A sensor was developed with an efficient color sorting program using integrated circuits along with a divergent rolling grader. The developed color sorter cum size grader works on the principle of energetic reflection based on measuring the intensity of light and it comprises feed hopper, chain conveyor, belt conveyor, three color sensor (TCS3200), collecting ducts, inlet hopper, grader, outlet section, and collecting trays. Developed machine was operated by a single-phase 2 hp motor. The performance of the developed machine was analyzed by measuring capacity, sorting efficiency, overall grading efficiency, and skin damage. Based on the performance evaluation, the maximum sorting efficiency and overall grading efficiency obtained were 94. 5% and 94.1, 94.1, and 94.6% for ripe and unripe fruits, respectively. Practical ApplicationsTomato is one of the important commodities, fetching highly fluctuating market values. Color sorting and size grading are very much needed at the field level to overcome human drudgery and to enhance the market value. In this context, a portable color sensor cum grader has been developed, which can be used by the farmers/ traders to get higher prices in the market. The capacity of newly developed equipment was approximately 40 kg/hr. The cost of operation of color sorting cum grading equipment was Rs. 3/kg of tomatoes.

show abstract

D_{a} goodbreak= \frac{(L + B + T)}{3},

D_{g} goodbreak= {(L \times B \times T)}^{\frac{1}{3}},

φ goodbreak= \frac{{((), LBT)}^{\frac{1}{3}}}{L},

Section: Methodsmentioning

confidence: 99%

“…Freshly matured tomatoes of 500 numbers from each variety PKM 1, Lakshmi, CO.3, and Roma were procured from Tamil Nadu Agricultural University, India for the study (Figure 1). The physical properties, which are important in designing color sorter cum grader such as size (Li et al, 2011), sphericity (ϕ), arithmetic mean diameter (D a ), and geometric mean diameter (D g ) were determined using the equation as described by Uba, Esandoh, Zogho, and Anokye (2020),…”

Section: Physical Properties Of Tomatoesmentioning

confidence: 99%

Development of a farmer‐friendly portable color sorter cum grader for tomatoes

Rajkumar

Abinaya

Deepa

et al. 2021

J Food Process Engineering

View full text Add to dashboard Cite

show abstract

“…Subsequently, a surface-to-surface contact pair algorithm was defined to the contact interaction between the end-surface (master surface) of the loading probe model and the upper surface (slave surface) of the mesocarp model. The normal contact behavior between the master and slave surfaces follows "hard" contact, and its tangential behavior follows the Coulomb interaction with a friction coefficient of 0.65 (Uba et al, 2020). The interactions between pre-crack and exocarp and pre-crack and mesocarp were defined based on a similar method applied by Liu et al (2022).…”

Section: Fe Modeling Of Three-point Bending Loading Systemmentioning

confidence: 99%

Thermo-biomechanical coupling analysis for preventing tomato fruit cracking during ripening

Liu

Zhu

et al. 2023

Journal of Food Engineering

View full text Add to dashboard Cite

“…The behavior of density has been described by Villamizar (2001) as being the result of the flow of gaseous components of fruits from internal spaces towards the outside as ripening progresses. The decrease in density in advanced degrees of ripeness could be related to respiration, water loss through transpiration and air inside the fruit (Osterloh et al, 1996;Wills et al, 1998;Pinzón et al, 2007;Uba et al, 2020). Poisson's coefficient expresses an increase with the degree of ripeness and presents significant differences according to the Tukey test (P≤0.05).…”

Section: Mechanical Parameters For the Firmness And Penetration Strengthmentioning

confidence: 99%

Mechanical properties and simulation of finite element firmness in Carica papaya L. Tainung F1 cultivated on the high Sinu (Cordoba-Colombia)

Arrázola¹,

Villadiego²,

Alvis³

2021

Rev. Colomb. Cienc. Hortic.

View full text Add to dashboard Cite

The objective of this research was to evaluate Tainung F1 papaya fruits in five degrees of ripeness, analyzing mechanical resistance and modeling behavior with finite element analysis to generate important postharvest and transport management data. Tainung F1 papaya fruits were evaluated in five degrees of ripeness by analyzing their mechanical strength. Firmness was determined by applying a uniaxial penetration test and mechanical properties with an axial compression test. The firmness modeling and simulation was done with Autodesk inventor professional 15.0 (ANSYS® Technology). The deformability modulus decreased with the increase in the degree of ripeness, from 1.81 MPa to 0.52 MPa for degree of ripeness 1 to degree of ripeness 5. The yield strength varied from 0.0073 MPa to 0.00239 MPa for the same range. The finite element simulation of the fruit firmness showed a negative correlation with the degree of ripeness.

show abstract

Physical and mechanical properties of locally cultivated tomatoes in Sunyani, Ghana

Cited by 7 publications

References 15 publications

Development of a farmer‐friendly portable color sorter cum grader for tomatoes

Development of a farmer‐friendly portable color sorter cum grader for tomatoes

Thermo-biomechanical coupling analysis for preventing tomato fruit cracking during ripening

Mechanical properties and simulation of finite element firmness in Carica papaya L. Tainung F1 cultivated on the high Sinu (Cordoba-Colombia)

Contact Info

Product

Resources

About