arefeh mazrouei; keramatollah saeidi; zahara izadi; Abdolrahman Mohammadkhani
Abstract
Since harvested horticultural products are highly perishable, those techniques should be used to increase their shelf life for their use in all seasons and their export. The effects of the encapsulation of Satureja bachtiarica essential oil with chitosan on the sensory and qualitative characteristics ...
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Since harvested horticultural products are highly perishable, those techniques should be used to increase their shelf life for their use in all seasons and their export. The effects of the encapsulation of Satureja bachtiarica essential oil with chitosan on the sensory and qualitative characteristics of pomegranate arils are studied in an experiment based on a completely randomized design with eight treatments including different w/w ratios of S. bachtiarica essential oil to chitosan (1:1, 1:2, and 1:3) at two spray levels of S. bachtiarica essential oil (0.3 and 0.6), and a pre-treatment and a post-treatment control, with three replications in the research laboratory of Shahrekord University in 2020-2021. Arils treated with the chitosan: essential oil ratio of 1-0.6 exhibit the best appearance and those treated with 2-0.3 and 3-0.3 exhibit the best taste. Based on the results, the diameter of the antimicrobial halo related to the fungus has been 2 mm in the essential oil treatment and 5.5 mm in the essential oil: chitosan ratio of 1:2. The highest encapsulation efficiency and the smallest particle size pertain to the treatment of 1:2. The ratio of 1:3 show higher efficiency than the ratio of 1:1 (55.1% versus 51.2%). The lowest zeta potential is obtained from the 1:3 ratio and the highest from the 1:1 ratio. Coating pomegranate arils and selecting an appropriate concentration of S. bachtiarica with chitosan coating (1-0.3 and 2-0.3) can significantly contribute to preserving the shelf life, marketability, and nutritional quality of pomegranate arils.
Elham Mostafaee; Mostafa Arab; Nematollah Etemadi; Mahmood Reza Roozban
Abstract
Nowadays, establishment and maintenance of turfgrasses due to high water requirements was faced with serious doubts. Hence, screening of drought resistance native grasses, and introduces them as turfgrass is not only effective in reduction of water usage but can also preserve plant gene pools of the ...
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Nowadays, establishment and maintenance of turfgrasses due to high water requirements was faced with serious doubts. Hence, screening of drought resistance native grasses, and introduces them as turfgrass is not only effective in reduction of water usage but can also preserve plant gene pools of the country. In the present experiment, Wheat grass and Bromus as two native grasses were compared with perennial ryegrass as control. After establishment and coverage of the pots surfaces by turfgrass in outdoor, three mowing heights including 2, 4 and 6 cm were applied on the species weekly. During the experiment, shoot growth, tillering, leaf color and leaf width, fresh and dry weight were measured weekly. The results of this research showed that Bromus due to undesirable tissue (leaf width more than 3 mm) and low density is not suitable for use in landscape. Wheat grass despite of rougher texture and less color than perennial ryegrass, has higher tillering, suitable color (7.59) and good texture (leaf width about 2 mm). Also, mowing height of 2 cm was determined as the best for three species studied.