Morphometric and gravimetric characteristics of jackfruit (Artocarpus heterophyllus Lam.), imported to Russia

The purpose of the study was to analyze the sizes, weights and volumes of fruits, devoid of pericarps (further - the ‘fruits’), and their parts; the determination of the density and the proportion of fruit’s components in volume and mass of fruit from jackfruit (Artocarpusheterophyllus Lam.) imported to the Russian Federation. The objects of the study were jackfruit’s fruits from free sale; country of origin was Thailand. The determination of the length, width, thickness, diameter, weight of fresh fruits, their pulp (fleshy part of aril), seed and flake (leather-like part of aril), as well as statistical processing of the research results were carried out according to standard methods. It was found, that coneshaped fruit contained a flake-covered ellipsoid seed. Their sizes, mass, volume and density were 6.50×4,30×4.00 cm, 53.83 g, 29.45 cm3 and1.83 g/cm3 (whole fruit) against 3.90×2.42 cm,g, and 1.08 g/cm3 (seed in flake) and 3.50х2.02 cm, 10.99 g and 1.47 g/cm3 (seed without flake), respectively. The shares of pulp, seed and flake to the whole jackfruit’s fruit differ in volume and weight: 59.39 %, 25.40 % and 15.21 % against 75.92 %, 20.42 % and 3.66 %, respectively. This is due to different density of whole fruit, pulp, seed and flake, maximum for edible pulp (2.34 g/cm3),which gives it a more nutritional value in comparison with seed. Seedless fruits of jackfruit were discovered.