Physical properties of fresh young Thai coconut for maturity sorting

Terdwongworakul, Anupun; Chaiyapong, Songtham; Jarimopas, Bundit; Meeklangsaen, Weerakul

doi:10.1016/j.biosystemseng.2009.03.006

Cited by 34 publications

(19 citation statements)

References 9 publications

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“…The moisture of the husk of all the five cultivars were >83% (w.b.). Terdwongworakul et al () observed that green (young) coconut fiber requires a higher rupture force compared with the brown (206th day after pollination) coconut fiber. The authors concluded that toward maturity the husk fiber loses moisture, thereby leaving empty spaces in the spongy tissue that deforms more easily, and thus, requires less strength to rupture.…”

Section: Resultsmentioning

confidence: 99%

Correlation and principal component analysis of physical properties of tender coconut (Cocos nucifera L.) in relation to the development of trimming machine

Pandiselvam

Manikantan

Subhashree

et al. 2019

J Food Process Engineering

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The physical properties such as tender coconut size, weight, husk thickness, and husk moisture tender content play a vital role in the development of an efficient and ergonomic trimming machine. The important physical properties of tender coconuts of cultivars namely Kulasekaran Green Dwarf (KGD), Andaman Giant Tall (AGT), Ganga Bondam (GB), Malayan Orange Dwarf (MOD), and Chowghat Orange Dwarf (COD) were determined. The important properties including weight, diameter, height, husk thickness, husk moisture content, shell diameter, shell height, and shell thickness were high for nuts of AGT and low for COD nuts. The average bulk density, true density, and porosity of AGT were 332.47 kg·m−3, 1,196.67 kg·m−3, and 72.21%, respectively. The husk weight and volume of water of AGT were 87.77% and 12.39% high, respectively, compared with COD. In the correlation study, the coconut weight correlated positively (r = 0.791) with the diameter and vertical distance between the shell and the fruit base (r = 0.813). The principal component analysis suggested that the cultivars GB, KGD, and MOD have similar physical properties to COD and AGT. Thus, the present investigation documents crucial basic information to design an efficient and superior tender coconut trimming machine. Practical Applications Transportation of intact tender coconut is difficult, and thus a manually trimmed tender coconut shape of a cylindrical side with a conical top has gained more importance among the domestic and international consumers owing to its fresh and natural taste and attractive shape. The high transportation cost of tender coconut, shortage of manpower to trim the tender coconut, and the high production cost to make the shape of the cylindrical side with a conical top have created an urgent need for the development of trimming machines. The physical properties of tender coconut and its correlation studies are very important for the designing and development of a trimming machine.

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Section: Resultsmentioning

confidence: 99%

Correlation and principal component analysis of physical properties of tender coconut (Cocos nucifera L.) in relation to the development of trimming machine

Pandiselvam

Manikantan

Subhashree

et al. 2019

J Food Process Engineering

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“…The mucous-like stage produces a solid sound, while the cooked rice-like and leather-like stages produce hollow sounds (Gatchalian et al , 1994). Terdwongworakul et al (2009) reported that the kernel thickness correlated very well with fruit maturity. The maturity can be nondestructively determined with resonant frequency, obtained after tapping the fruit, with very good accuracy of prediction R 2 = 0.927.…”

Section: Young Coconutmentioning

confidence: 98%

Coconut ( Cocos nucifera L.)

Siriphanich,

Saradhuldhat,

Romphophak

et al. 2011

Postharvest Biology and Technology of Tropical and Subtropical Fruits

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“…The ANOVA presented statistically significant differences (p <0.05) in the CW and CP percentage ratios and the CW properties (Xw, °Brix, density, IA, pH, µ and b*) with respect to the time factor; while there were no significant differences (p >0.05) in the CP properties, or in the percentage ratio of the inner shell, the IP and in the CW aw, L* and a*. The CW had a tendency to diminish the mass (30.1→15.4%), which has been observed during the physiological maturation during harvest by other authors and which continues during postharvest (Jackson et al, 2004;Terdwongworakul et al, 2009); while the CP and the peel tend to increase over time: (47.1→55.2%) and (26.0→33.8%), respectively. The CP and CW physiological phenomena are typical during maturation and senescence of this fruit, promoted by respiration, transpiration, and water absorption by the solid endosperm (Thuan-Chew et al, 2014;Siriphanich et al, 2011).…”

Section: Resultsmentioning

confidence: 58%

EVALUATION OF POSTHARVEST BEHAVIOR OF COCONUT (Cocos nucifera L.)

2019

CRPJFST

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Coconut is a Tropical fruit of interest for Colombia; one part of its production is used at industrial level; nonetheless, there is little diversification of products with added value and lack of availing of coconut water, the husk, and peel. The aim of this research was to evaluate the behavior of the physical and physical-chemical properties of coconut pulp (CP) and its coconut water (CW) during storage at 25 °C, to determine the adequate time for use as raw material for its transformation, using a completely random design (CRD) via analysis of variance (ANOVA) and Tukey tests, with 5% significance level. Where the independent variable were the control times at 15, 22, 29, 36, 43, and 50 days after harvest, at the rate of 3 coconuts/lot for each control time. Among the response variables we determined the percentage distribution of the CP, CW, and inner shell (endocarp), as well as properties of Xw, pH, soluble solids, acidity, aw, color (L*, a*, b*), viscosity, and texture. Results showed general CP and CW deterioration after de 36 days of storage, mainly due to increased acidity, fermentation odors, loss of Xw, lipid oxidation (LO), and CP softening and discoloration, among others.

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Physical properties of fresh young Thai coconut for maturity sorting

Cited by 34 publications

References 9 publications

Correlation and principal component analysis of physical properties of tender coconut (Cocos nucifera L.) in relation to the development of trimming machine

Correlation and principal component analysis of physical properties of tender coconut (Cocos nucifera L.) in relation to the development of trimming machine

Coconut ( Cocos nucifera L.)

EVALUATION OF POSTHARVEST BEHAVIOR OF COCONUT (Cocos nucifera L.)

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