scholarly journals Differentiation of eiincorns by water retention capacity

2021 ◽  
Vol 29 ◽  
pp. 123-129
Author(s):  
Hao Fu ◽  
V.S. Lyutenko ◽  
V.V. Zhmurko ◽  
R. L. Bohuslavskyi
Keyword(s):  
Principal Components ◽  
Water Retention ◽  
Water Holding Capacity ◽  
Water Retention Capacity ◽  
Einkorn Wheat ◽  
Retention Capacity ◽  
Drought Tolerant ◽  
Method Of Principal Components ◽  
Triticum Boeoticum ◽  
Water Holding

Aim. On the basis of multivariate analysis, to differentiate einkorn wheat accessions by the water-holding capacity of leaves and ears and the parameters of these organs at the level of species and genotypes. Methods. The water-holding capacity was assessed by the moisture-yielding coefficient which was determined by the method of N.N. Kozhushko (Kozhushko, 1988). Differentiation of einkorn samples was carried out by the method of principal components in the interpretation of A.V. Korosov (Korosov, 1996). Results. Triticum monococcum UA0300113, Syria, and UA0300282, Hungary were characterized by the lowest specific moisture-yielding coefficients: for the second and flag leaves, respectively, (mg / cm2) 10.9, 7.0 and 11.4, 10.7; ears – the same samples as well as Triticum boeoticum UA0300401, Ukraine-Crimea: (mg / cm) 29.6, 28.2, 25.4. With an increase in the size of the lamina, there is a tendency to a decrease in its specific moisture yield. The samples of eincorn are differentiated into 4 clusters corresponding to the species. Conclusions. T. monococcum UA0300113, Syria, and UA0300282, Hungary are relatively drought tolerant. The complex of features characterizing leaf and spike size in combination with the moisture-yielding coefficients processed by the method of principal components makes it possible to differentiate einkorn oaccessions by species and genotype. Keywords: einkorns, moisture yield, drought resistance, leaf, ear.

scholarly journals Effect of drying temperature on quality of β-glucan in white oat grains

2012 ◽  
Vol 32 (4) ◽  
pp. 775-783 ◽  
Author(s):  
Leandro da Conceição Oliveira ◽  
Maurício Oliveira ◽  
Volnei Luiz Meneghetti ◽  
Simone Mazzutti ◽  
Luciane Maria Colla ◽  
...  
Keyword(s):  
Moisture Content ◽  
Water Retention ◽  
Water Holding Capacity ◽  
Water Retention Capacity ◽  
Drying Process ◽  
Retention Capacity ◽  
Air Temperatures ◽  
Water As Solvent ◽  
Harvest Moisture ◽  
Water Holding

Oats have received attention because of their nutritional characteristics, especially their high-quality content of β-glucan. The drying process reduces water content; therefore they can be preserved for long periods. However, high-temperature drying process may affect the physical, chemical, and functional properties of the grains. The objective of this study was to evaluate the effect of different drying temperatures on β-glucan quality in oat grains. Grains of oats (Avena sativa, L.), cultivar Albasul, harvested at harvest moisture content of 23% were submitted to stationary drying at air temperatures of 25, 50, 75, and 100 ºC until they reached 13% moisture content. The β-glucan content was determined in samples of oat grains and extraction was performed using water as solvent at 90 ºC. The β-glucan extract was evaluated for water holding capacity, water retention capacity, capacity of displacement, and gelation properties. Stationary of oat grains at air temperatures above 25 ºC decreased the water holding capacity, whereas the content of β-glucan and the water retention capacity of β-glucan extract was affected at temperatures above 50 ºC. Physical changes such as increased gelation capacity of the β-glucan extract occurred following drying at air temperature over 75 ºC.

scholarly journals Time Dependent Influence of Rotating Magnetic Field on Bacterial Cellulose

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Karol Fijałkowski ◽  
Rafał Rakoczy ◽  
Anna Żywicka ◽  
Radosław Drozd ◽  
Beata Zielińska ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Bacterial Cellulose ◽  
Water Retention ◽  
Rotating Magnetic Field ◽  
Water Retention Capacity ◽  
Water Molecules ◽  
Retention Capacity ◽  
Exposure System ◽  
The Impact ◽  
Water Holding

The aim of the study was to assess the influence of rotating magnetic field (RMF) on the morphology, physicochemical properties, and the water holding capacity of bacterial cellulose (BC) synthetized by Gluconacetobacter xylinus. The cultures of G. xylinus were exposed to RMF of frequency that equals 50 Hz and magnetic induction 34 mT for 3, 5, and 7 days during cultivation at 28°C in the customized RMF exposure system. It was revealed that BC exposed for 3 days to RMF exhibited the highest water retention capacity as compared to the samples exposed for 5 and 7 days. The observation was confirmed for both the control and RMF exposed BC. It was proved that the BC exposed samples showed up to 26% higher water retention capacity as compared to the control samples. These samples also required the highest temperature to release the water molecules. Such findings agreed with the observation via SEM examination which revealed that the structure of BC synthesized for 7 days was more compacted than the sample exposed to RMF for 3 days. Furthermore, the analysis of 2D correlation of Fourier transform infrared spectra demonstrated the impact of RMF exposure on the dynamics of BC microfibers crystallinity formation.

scholarly journals Study of drought tolerance of hybrid material of home plum in southern Russia

2020 ◽  
pp. 94-98
Author(s):  
A. A. Kochubey ◽  
R. Sh. Zaremuk
Keyword(s):  
Drought Tolerance ◽  
Water Content ◽  
Water Retention ◽  
Leaf Tissue ◽  
Stress Factors ◽  
Water Retention Capacity ◽  
Retention Capacity ◽  
Drought Resistant ◽  
Water Holding ◽  
Hybrid Forms

Relevance. The aim of the research was to determine the physiological characteristics of the manifestation of resistance to stress factors (drought) of new hybrid forms of domestic plum and the allocation of the most drought-resistant in the environmental conditions of southern gardening.Methods. The article presents the results of drought tolerance studies of six promising hybrid forms of home plum (17–1-55, 17–1-69, 17–2-64, 17–2-78, 17–2-81, 17–3-79), concentrated in the genetic collection of SKFNTSVV. The main indicators characterizing the varieties and hybrids of home plum were determined as drought tolerant — the water content of the leaves and the water holding capacity of the leaves under conditions of summer moisture deficiency.Results. The water content of leaf tissue of hybrid forms in the hottest period (second — third decade of July) was heterogeneous. The highest water content in tissues was observed in hybrid seedlings 17–2-64 (63.1%) and 17–2-81 (59.6%). The smallest value was observed in the hybrid 17–3-79 and amounted to 49.7%. According to the data obtained, it was concluded that the studied hybrid forms do not differ in high water content, with the exception of hybrid 17–2-64, in which the water content can be characterized as above average. It was found that the water retention capacity of most hybrid forms is average. The total water content after withering in the studied hybrids was more than 80%. The greatest decrease in the amount of water in the leaves was observed in hybrids 17–1-55 (18.9%), 17–2-64 (18.5%), 17–3-79 (18.4%); the smallest — in hybrids 17–1-69 (13.3%), 17–2-78 (13.6%), which indicates a highwater retention capacity of the last two hybrids. With a general assessment of the hybrid fund of home plum, it was found that most hybrids studied have low hydration of leaf tissue and average water retention capacity. Based on this, two drought-resistant hybrid forms were identified: 17–1-69 and 17–2-78, which, despite the low water content, are distinguished by good water-holding ability in comparison with other hybrids and, as a consequence, the conservation of leaf turgor.

Utilization of Prosopis Juliflora Root Powder as a Self Curing Agent

2019 ◽  
pp. 342-345
Author(s):  
Pradeesh V ◽  
Karthikeyan S ◽  
Prabakaran D
Keyword(s):  
Water Retention ◽  
Fresh Concrete ◽  
High Water ◽  
Water Evaporation ◽  
Water Retention Capacity ◽  
Hardened Concrete ◽  
Curing Agent ◽  
Retention Capacity ◽  
Adverse Conditions ◽  
Water Holding

Curing plays a chief function in the improving the strength of concrete. The function of a self-curing agent is to save the water and to reduce the water evaporation from the concrete, and hence they increase the water retention capacity of concrete compared to the conventionally cured concrete. Prosopisjuliflora root powder is used as admixtures for self-curing concrete in this study. Prosopisjuliflora (SeemaiKaruvelam in Tamil) grows tremendously and spreads due to its mechanism to overcome adverse conditions of like drought and salt. With deep penetrating roots, it can draw water from deeper layers. Their root has high water holding capacity, so powder made from it can be used as admixture for self-curing concrete. This project involves the experimental investigation of self-curing of concrete by using Prosopisjuliflora root powder. Tests on fresh concrete and hardened concrete were conducted. From the results, we have concluded that adding prosopisjuliflora root powder as a self-curing agent in the concrete mix at various percentages, the addition of 0.75% of prosopisjuliflora root powder by the weight of cement attains the 28 days compressive strength of a conventional M25 grade concrete in 7 days.

Use of marble sludge and biochar to improve soil water retention capacity

2018 ◽  
Vol 8 ◽  
Author(s):  
Jerónimo Salinas ◽  
Inés García ◽  
Fernando del Moral ◽  
Mariano Simón
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Volumetric Water Content ◽  
Water Holding Capacity ◽  
Water Retention Capacity ◽  
Soil Water Retention ◽  
Retention Capacity ◽  
Lettuce Seedling ◽  
Water Holding ◽  
Marble Sludge

Agriculture and mining are the most important economic activities in the province of Almería (SE Spain) and generate large amounts of waste. Almería is one of the driest regions in Europe, and its water resources come mainly from groundwater. The high water consumption of greenhouses (between 5000 and 6000 m<sup>3</sup> ha<sup>-1</sup> y<sup>-1</sup>) has resulted in a sharp decline of water table levels and a worsening of water quality. Therefore, it is necessary to implement actions that lead to the more efficient use of irrigation water. The objective of this study was to evaluate the effect of two waste types (marble sludge and biochar from greenhouse plant debris) on the soil water holding capacity. Three treatments were performed in pots using two of the most common soils in greenhouses. A lettuce seedling was planted in each pot, and the volumetric water content was periodically controlled. The first treatment contained 600 g of soil, the second treatment contained 200 g of marble sludge at the bottom and 400 g of soil on the surface, and the third treatment contained 150 g of marble sludge at the bottom, 50 g of biochar in the middle and 400 g of soil on the surface. The results showed that the use of marble sludge, biochar and the combination of both waste types increased water holding capacity. The volumetric water content was relatively high for a longer time, allowing for a reduction in watering frequency and enabling more efficient water use. The waste applications<strong> </strong>were most effective in the soil with a thicker texture and lower evaporation rate.

scholarly journals Chemical Composition and Functional Properties of Dietary Fibre Concentrates from Winemaking By-Products: Skins, Stems and Lees

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1510
Author(s):  
María Ángeles Rivas ◽  
Rocío Casquete ◽  
María de Guía Córdoba ◽  
Santiago Ruíz-Moyano ◽  
María José Benito ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Functional Properties ◽  
Dietary Fibre ◽  
Water Retention ◽  
Point Of View ◽  
Water Retention Capacity ◽  
Retention Capacity ◽  
Oil Retention ◽  
High Antioxidant Activity ◽  
By Products

The objective of this study was to evaluate, from a technological and nutritional point of view, the chemical composition and functional properties of the industrial winemaking by-products, namely skins, stems and lees. The chemical and physical characteristics, as well as the functional properties (fat and water retention and swelling capacity, antioxidant capacity, and their prebiotic effect), of the dietary fibre of these by-products were studied. The results showed that the skins, stems, and lees are rich in fibre, with the stem fibre containing the highest amounts of non-extractable polyphenols attached to polysaccharides with high antioxidant activity and prebiotic effect. Lee fibre had the highest water retention capacity and oil retention capacity. The results reveal that winemaking by-products could be used as a source of dietary fibre with functional characteristics for food applications.

Host preferences of low-trunk vascular epiphytes in a cloud forest of Veracruz, Mexico

2005 ◽  
Vol 21 (6) ◽  
pp. 651-660 ◽  
Author(s):  
Klaus Mehltreter ◽  
Alejandro Flores-Palacios ◽  
José G. García-Franco
Keyword(s):  
Water Retention ◽  
Cloud Forest ◽  
Water Retention Capacity ◽  
Retention Capacity ◽  
Host Preferences ◽  
Host Group ◽  
Vascular Epiphytes ◽  
Lower Trunk ◽  
Tree Ferns ◽  
Epiphyte Species

The diversity, abundance and frequency of vascular epiphytes on the lower trunk were compared between two host groups of a Mexican cloud forest: angiosperm trees (n = 72) and tree ferns (n = 28). The bark of the five most frequent host trees and the root mantle of the two tree ferns were analysed for their thickness, water content, water retention capacity and pH. A total of 55 epiphyte species and 910 individuals were found on the 27 host species. On hosts with a dbh range of 5–10 cm, epiphytes were significantly more diverse (4.3±0.9 species per host) and more abundant (12.5±2.2 individuals per host) on tree ferns than on angiosperm trees (1.9±0.2 species per host and 3.9±0.6 individuals per host). However, these differences were not significant for the dbh class of 10–20 cm, because epiphyte numbers increased on angiosperm trees with larger host size, but not in tree ferns. Most epiphyte species had no preference for any host group, but four species were significantly more frequent on tree ferns and two species on angiosperm trees. The higher epiphyte diversity and abundance on tree fern trunks of the smallest dbh class is attributed to their presumably greater age and to two stem characteristics, which differed significantly between host groups, the thicker root mantle and higher water retention capacity of tree ferns. These bark characteristics may favour germination and establishment of epiphytes.

Effect of boiling on nutritional, antioxidant and physicochemical properties of edible plants (Malva parviflora and Myrtillocactus geometrizans)

2021 ◽  
pp. 510
Author(s):  
Sandoval-Gallegos Eli Mireya ◽  
Arias-Rico José ◽  
Cruz-Cansino Nelly del Socorro ◽  
Ramírez-Ojeda Deyanira ◽  
Zafra-Rojas Quinatzin Yadira ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Physicochemical Properties ◽  
Antioxidant Capacity ◽  
Water Retention ◽  
Nutritional Composition ◽  
Total Phenolic ◽  
Water Retention Capacity ◽  
Total Phenolic Compounds ◽  
Retention Capacity ◽  
Malva Parviflora

The aim of the present research was to determine the effect of boiling on nutritional composition, total phenolic compounds, antioxidant capacity, physicochemical and morphological characteristics of two edible plants Malva parviflora (mallow leaf) and Myrtillocactus geometrizans (garambullo flower). The plants had an important nutritional composition as carbohydrates (48-70 %), dietary fiber (36-42 %) and protein (13 %), as well as total phenolic compounds (468-750 mg GAE/100 g db) with a high antioxidant capacity. However, boiling originated the decrease of soluble compounds, carbohydrates, total phenolic compounds, antioxidant capacity and physicochemical properties. Plants changed to dark colors and physicochemical properties were affected, except to water retention capacity, oil retention capacity and viscosity, which had the same values in mallow leaves (raw and boiled), but increased water retention capacity in garambullo flowers, it may be by changes in the morphology observed. Therefore, is to suggest the raw consumption or with minimal cooking of these plants to avoid changes caused by thermal treatment.

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