Some physical properties of ginkgo nuts and kernels

Ch'ng, P. E.; Abdullah, M.; Mathai, E; Yunus, N.A.

doi:10.2478/intag-2013-0019

Cited by 10 publications

(12 citation statements)

References 9 publications

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“…According to most of the researchers, it was generally observed that the bulk density of nuts was always lower than that of kernels (Kashaninejad et al, 2006). This pattern was similar to that reported in a study on pistachio nuts and kernels (Kashaninejad et al, 2006), ginko nuts and kernels (Ch'ng et al, 2013). This is probably due to the shell, in which the nut is bigger in size than the kernel, hence a decrease in the total mass per unit volume occupied by the nut (Kashaninejad et al, 2006).…”

Section: Resultssupporting

confidence: 72%

“…The closer the sphericity to 1.0, the higher the tendency to roll about any of the three axes and the closer the ratio of thickness to width to 1.0, the higher the tendency to rotate with reference to the major axis (Akaaimo and Raji, 2006). Fan palm fruits and seeds have nearly similar and higher sphericity values (0.83 and 0.81, respectively) (Table 1) than fruit, nut and kernel of oil palm (below than 75%) (Akinoso and Raji 2011), ginkgo nuts (69.70%) and kernels (71.86%) (Ch'ng et al, 2013), almond nut (62.96%) and kernels (52.14 %) (Mirzabe et al 2013), cumin (36.2%) and caraway (34.64%) (Zare et al, 2013), and lower than Gbafilo (Chrysobanusicaco) fruits and kernels (0.84 and 0.82, respectively) (Davies and Zibokere, 2011).…”

Section: Resultsmentioning

confidence: 99%

“…This is probably due to the shell, in which the nut is bigger in size than the kernel, hence a decrease in the total mass per unit volume occupied by the nut (Kashaninejad et al, 2006). The information about the bulk density of nuts is indeed useful in determining nut storage capacity (Ch'ng et al, 2013). Physical properties of agricultural materials are important factors for consideration when designing storage facilities and processing.…”

Section: Resultsmentioning

confidence: 99%

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Dimensional specific physical properties of fan palm fruits, seeds and seed coats (Washingtonia robusta)

Coscuner

Gokbudak

2016

International Agrophysics

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A b s t r a c t. In this study some physical properties of fan palm (Washingtonia robusta) fruits, seeds and seed coats were determined using dimensional, bulk and single kernel physical analysis. The moisture content of whole fruits, seeds and seed coats was 12.0, 9.86 and 13.87% (d.b.), respectively. The sphericity values showed that seed shape (0.86) is close to a sphere, similar as the fruit shape (0.83), both of which were close to a scalene ellipsoid shape. The surface area values of fruits and seeds were obtained as 163.27 and 80.25 mm 2 , and volume values were obtained as 190.96 and 66.32 mm 3 , respectively. Bulk densities of fruits, seeds and seed coats were 559, 783 and 272 kg m -3 , and the corresponding true densities were 1143, 1147 and 864 kg m -3 , whereas the corresponding porosities were 48.87, 54.12, and 31.52%, respectively. The values of the static coefficient of friction and the angle of repose of fruits, seeds and seed coats of palm fruits were studied on aluminium, canvas, galvanised iron, plywood, PP knitted bag, PVC and stainless steel surfaces. As expected, seed coat has higher values of coefficient of static friction on the all surfaces than fruit and seed.

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Section: Resultssupporting

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Dimensional specific physical properties of fan palm fruits, seeds and seed coats (Washingtonia robusta)

Coscuner

Gokbudak

2016

International Agrophysics

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“…Ginkgo seeds are rich in nutritional components and widely consumed in China by boiling, frying or adding to other foods . However, ginkgo seeds are susceptible to mildew, and they continuously ripen after harvest, leading to high respiration rate and metabolic activity . The loss of quality and restriction during a prolonged storage period are mainly associated with ginkgo seeds' susceptibility to fungal infection and water loss.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ginkgo biloba seed exopleura extract and chitosan coating on the postharvest quality of ginkgo seed

Tian¹,

Chen²,

Fan³

et al. 2019

J Sci Food Agric

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Background The effects of Ginkgo biloba seed exopleura extract (GSEE) and chitosan (CH) coating on the preservation of ginkgo seeds were investigated. Results Results showed that CH could alleviate the decay rate, and that CH combined with GSEE (CH–GSEE) treatment further inhibited the development of seed decay due to the additional antifungal activity of GSEE. The nutrient contents, including water, starch and soluble protein, were maintained by both CH–GSEE and CH treatments. CH–GSEE treatment led to better restriction on oxidative stress by decreasing superoxide anion production rate, membrane permeability, malondialdehyde content, respiration rate and ethylene production rate. The antioxidant enzyme activities of peroxidase, superoxide dismutase and catalase in ginkgo seeds were maintained by treatment with CH–GSEE at a higher level. These results were consistent with the enhanced visual appearance, qualities and storability of the CH–GSEE‐treated seeds. Principal component analysis provided a global view of the internal relations of the ginkgo seeds with different treatments. Conclusions The postharvest qualities of CH–GSEE‐treated seeds were better than those of other treatment groups. Therefore, CH–GSEE is an effective and alternative way for inhibiting decay, maintaining quality and extending the postharvest life of ginkgo seeds. © 2018 Society of Chemical Industry

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“…Therefore, it is necessary to conduct a detailed study of those physical properties of seeds that will facilitate development of effective designs of machines for cleaning and separating the base material from contaminants and seeds of undesirable species. The problem of the physical properties of seeds has been addressed in a number of publications (Anonymous, 2002;Balasubramianian et al, 2012;Ch'ng et al, 2013;Kovalyshyn et al, 2013;Zare et al, 2013). Zaika (2006) discusses issues related to the entire complex of physical properties of plants.…”

Section: Introductionmentioning

confidence: 99%

Geometrical and Friction Properties of Perennial Grasses and Their Weeds in View of an Electro-Separation Method

Kovalyshyn¹,

Dadak²,

Sokolyk³

et al. 2015

International Agrophysics

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A b s t r a c t. Many seed mixtures of herbs are difficult to separate. This is confirmed by studies determining the basic geometrical and friction properties of the seeds of perennial grasses and seeds of their weeds. The results show that in most cases the value of their geometrical parameters (length, thickness, and width) and friction properties (friction coefficients for different external surfaces of internal friction coefficients) are substantially similar and differ slightly among each other. This is the evidence that these properties are impractical to use in the process of separation as signs of divisibility. In the paper, a method for electro-separation of seed mixtures of herbs based on the use of complex physical, mechanical properties and electrical components in the separation are presented. The electric field that acts as an additional working body allows considering the surface conditions and biological status of seed mixtures of particles and significantly expands the functionality of the separators. Confirmation of the effectiveness of the proposed method for separation can be seen in the example of purification of red clover and sorrel seeds. By imposition of an electric field on an inclined moving separating plane, we can completely separate weed seeds from the main crop. The results confirm the effectiveness of the electro-separating method.K e y w o r d s: seeds of grasses and weeds, physical properties, separation method INTRODUCTION

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Some physical properties of ginkgo nuts and kernels

Cited by 10 publications

References 9 publications

Dimensional specific physical properties of fan palm fruits, seeds and seed coats (Washingtonia robusta)

Dimensional specific physical properties of fan palm fruits, seeds and seed coats (Washingtonia robusta)

Effect of Ginkgo biloba seed exopleura extract and chitosan coating on the postharvest quality of ginkgo seed

Geometrical and Friction Properties of Perennial Grasses and Their Weeds in View of an Electro-Separation Method

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