Physical properties of sesame seeds harvested at different maturation stages and thirds of the plant

Abstract

The quality of sesame (Sesamum indicum L.) seeds is directly influenced by their physical characteristics, which are seldom studied notwithstanding their extreme importance in the entire production chain. Therefore, the objective of this study was to quantify the physical properties of two types of sesame seeds, collected at three points in the plant with different maturation levels, measured with digital caliper, and to evaluate the feasibility of using a digital image to determine their physical characteristics. The seeds were initially evaluated for water content and mass of 1000 seeds, and later with the data of the characteristic dimensions A (length), B (width), and C (thickness), obtained by a caliper and digital images, we determined their sphericity, circularity, projected area, and geometric diameter. We observed that water content did not affect the physical properties of the cream (CNPA G4) and black sesame cultivars. In addition, seeds of the black cultivar presented higher results than the seeds of the cream cultivar for the mass of 1000 seeds (2.7 ± 0.08 g), sphericity (58.8 ± 0.47%), projected area (4.03 ± 0.12 mm 2 ), and geometric diameter (1.65 ± 0.03 mm). Seed batches harvested after 70% maturation had the highest mass of 1000 seeds (2.7 ± 0.12 g). The results of the physical analyses of sesame seeds performed with caliper and digital image are equivalent, which shows that digital images can be used as tools to obtain the physical properties of seeds.

Nutritional Characteristics Assessment of Sunflower Seeds, Oil and Cake. Perspective of Using Sunflower Oilcakes as a Functional Ingredient

“…The physical characteristics are extremely important in the seeds production chain for designing various agricultural machines and equipment for operations such as planting, harvesting, cleaning, quality assessment, classification, dehulling, milling, packaging, storing and oil extraction [36]. Physical characteristics can be grouped into four categories, namely dimensional, gravimetric, compressive and frictional (angle of response and static friction) [37,38].…”

Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes

“…Variability of agroecological conditions may alter the growth and development of maize (Bergamaschi et al, 2007;Asare et al, 2011;Chen et al, 2011;Rattalino Edreira et al, 2011;Zhou et al, 2016). Stress caused by drought, insufficient light, especially in the period from silking to full maturity, leads to the reduction in DM accumulation, which results in a smaller seed weight (Andrade and Ferreiro, 1996;Mazvimbakupa et al, 2015;Araujo et al, 2018). The temperature is the main climatic factor affecting physiological processes during the grain filling period and therefore the yield itself (Holzkämper and Fuhrer, 2013).…”

Determination and modeling of physical and aerodynamic properties of coffee beans ( Coffea arabica ) during the drying process

“…Several agricultural products use the properties of size and shape as a quality parameter (Araujo et al, 2018). For coffee, these properties are directly related to quality and final price, since coffee beans are classified by sieves based on these characteristics (Busto-Vanegas et al, 2018).…”