scholarly journals Influence of nutrition optimization on the main indicators of quality of false flax seeds for cultivation in the south of Ukraine

Author(s):  
V.V. Gamayunova ◽  
I.S. Moskva

This article highlights the importance of low-investigated and insufficiently widespread oilseed crop of false flax, which can become an alternative to sunflower and other oilseeds. The false flax is unpretentious to growing conditions, it responds well to the optimization of nutrition, italso significantly increases the yield of seeds. Researches were carried out during 2014-2016 on southern Chernozem in the Educational-scientific-practical center of Mykolaiv National Agrarian University with the crop of false flax (variety Stepovyi 1). The optimization of plant nutritionwas investigated by using modern growth-regulating drugs on the background of N15P15K15, that is, on the principles of resource conservation. The influence of nutrition on the main indicators of seed quality was determined.It was determined that depending on thenutrition background not only the level of yield changed but also the quality of seeds. Thus, the protein content considerably increased as well as the conditional harvest per unit of area; the fat content, on the contrary, reducedwith improved nutrition, but in the fatty-acid composition of the oilthe content of the most valuable linoleic acid increased without increasing the amount of erucic acid. According to the research the introduction of false flax crop into production can partially replace the area under the sunflower since it is not inferior to thesunflower on the main criteria of the oil quality as well as on the indicators of its economic efficiency. Keywords: false flax, biopreparations, nutrition optimization, seed quality, fatty- acid composition of oil, fat and protein content.

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1186 ◽  
Author(s):  
Ibrahim A. A. Mohamed ◽  
Nesma Shalby ◽  
Ali M. A. El-Badri ◽  
Muhammad Hamzah Saleem ◽  
Mohammad Nauman Khan ◽  
...  

Salinity stress is a limiting factor for the growth and yield quality of rapeseed. The potentiality of melatonin (MT; 0, 25, 50, and 100 µM) application as a seed priming agent in mediating K+/Na+ homeostasis and preventing the salinity stress mediated oxidative damage and photosynthetic inhibition was studied in two rapeseed cultivars. We found that 50 µM MT treatment imparted a very prominent impact on growth, metabolism of antioxidants, photosynthesis, osmolytes, secondary metabolites, yield, and fatty acids composition. Days required for appearance of first flower and 50% flowering were decreased by MT application. Exogenous MT treatment effectively decreased the oxidative damage by significantly declining the generation of superoxide and hydrogen peroxide under saline and non-saline conditions, as reflected in lowered lipid peroxidation, heightened membrane stability, and up-regulation of antioxidant enzymes (catalase, superoxide dismutase, and ascorbate peroxidase). Furthermore, MT application enhanced the chlorophyll content, photosynthetic rate, relative water content, K+/Na+ homeostasis, soluble sugars, and proline content. Moreover, MT application obviously improved the oil quality of rapeseed cultivars by reducing glucosinolates, saturated fatty acids (palmitic and arachidic acids), and enhancing unsaturated fatty acids (linolenic and oleic acids except erucic acid were reduced). Yield related-traits such as silique traits, seed yield per plant, 1000 seeds weight, seed oil content, and yield biomass traits were enhanced by MT application. The anatomical analysis of leaf and stem showed that stomatal and xylem vessels traits are associated with sodium chloride tolerance, yield, and seed fatty acid composition. These results suggest the supportive role of MT on the quality and quantity of rapeseed oil yield.


2020 ◽  
Vol 333 ◽  
pp. 127531 ◽  
Author(s):  
Kashif Ghafoor ◽  
Isam A. Mohamed Ahmed ◽  
Mehmet Musa Özcan ◽  
Fahad Y. Al-Juhaimi ◽  
Elfadıl E. Babiker ◽  
...  

2020 ◽  
Vol 27 ◽  
pp. 00015
Author(s):  
Е.I. Lupova ◽  
A.V. Novikova ◽  
D.V. Vinogradov

Developments in selection and emergence of new varieties and hybrids of oilseeds, which have a better ratio of the fatty acid composition of the oil, make is possible to promote such types of crops as camelina, colza, rapeseed and others. The paper presents an analysis of the quality of new and promising varieties and hybrids of oilseeds, which, according to their morphological and biological characteristics, are successfully cultivated in conditions of the Non-Chernozem Zone of Russia. It is confirmed that oil quality is due to genetic characteristics of the variety and hybrid. The quality of seeds of spring rapeseed Ratnik, Cyclus KL, Curry KL, Salsa KL, Cultus KL, Ozorno, Cebra and other studied varieties and hybrids of the 00 type are close to olive oil in their fatty acid composition and are not inferior to the quality of sunflower oil. There is a high content of important C18:1 oleic acid in oil of rapeseed (59-65 %), and a low content of the total of C16:0 palmitic + C18:0 stearic (5.5-6.0 %). The data on the high quality of camelina oil are presented, which allows the use of varieties Yubilyar and Veles for production of vegetable oil with a high content of unsaturated acids for food purposes. The work discusses the current restrictive norms for the supply of oilseeds and determining the standard weight for oil refining enterprises.


Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 941
Author(s):  
Ewa Szpunar-Krok ◽  
Anna Wondołowska-Grabowska ◽  
Dorota Bobrecka-Jamro ◽  
Marta Jańczak-Pieniążek ◽  
Andrzej Kotecki ◽  
...  

Soybean is a valuable protein and oilseed crop ranked among the most significant of the major crops. Field experiments were carried out in 2016–2019 in South-East Poland. The influence of soybean cultivars (Aldana, Annushka), nitrogen fertilizer (0, 30, 60 kg∙ha−1 N) and inoculation with B. japonicum (control, HiStick® Soy, Nitragina) on the content of fatty acids (FA) in soybean seeds was investigated in a three-factorial experiment. This study confirms the genetic determinants of fatty acid composition in soybean seeds and their differential accumulation levels for C16:0, C16:1, C18:1n9, C18:2, C18:3, and C20:0 as well saturated (SFA), monounsaturated (MUFA), and polyunsaturated (PUFA) fatty acids. Increasing the rate from 30 to 60 kg ha−1 N did not produce the expected changes, suggesting the use of only a “starter” rate of 30 kg ha−1 N. Inoculation of soybean seeds with a strain of Bradyrhizobium japonicum (HiStick® Soy, BASF, Littlehampton, UK and Nitragina, Institute of Soil Science and Plant Cultivation–State Research Institute, Puławy, Poland) is recommended as it will cause a decrease in SFA and C16:0 acid levels. This is considered nutritionally beneficial as its contribution to total fatty acids determines the hypercholesterolemic index, and it is the third most accumulated fatty acid in soybean seeds. The interaction of cultivars and inoculation formulation on fatty acid content of soybean seeds was demonstrated. An increase in the value of C16:0 content resulted in a decrease in the accumulation of C18:1, C18:2, and C18:3 acids. The content of each decreased by almost one unit for every 1% increase in C16:0 content. The dominant effect of weather conditions on the FA profile and C18:2n6/C18:3n3 ratio was demonstrated. This suggests a need for further evaluation of the genetic progress of soybean cultivars with respect to fatty acid composition and content under varying habitat conditions.


Author(s):  
М.Л. ДОМОРОЩЕНКОВА ◽  
Т.Ф. ДЕМЬЯНЕНКО ◽  
И.М. КАМЫШЕВА ◽  
И.В. КРЫЛОВА

Исследования фракционного состава белков и жирнокислотного состава масел безалкалоидных и малоалкалоидных сортов люпина для производства кормов и продуктов питания являются актуальными в современных социально-экономических условиях, когда требуется найти альтернативу соевым продуктам. В данной работе изучались фракционный состав белков и жирнокислотный состав масла семян 11 образцов малоалкалоидных сортов люпина отечественной селекции трех видов: белого, желтого и узколистного. Самое высокое содержание сырого протеина выявлено в образцах семян желтого люпина, в семенах белого люпина содержание сырого протеина было немного ниже, а все исследованные образцы сортов узколистного люпина характеризовались самым низким содержанием сырого протеина. Суммарное количество растворимых белков в семенах люпина было высоким и изменялось от 84,21 до 92,45 %. Во всех исследованных образцах сортов белого люпина преобладала альбуминовая фракция, в семенах сортов узколистного и желтого люпина – глобулиновая фракция. Содержание сырого жира в семенах разных сортов изменялось от 4,62 до 9,28%. Обнаружены различия в жирнокислотном составе масла семян люпина разной видовой принадлежности. Жирнокислотный состав семян характеризовался преобладанием олеиновой кислоты в масле семян сортов белого люпина, при явном преобладании линолевой кислоты в сортах желтого и узколистного люпина. Researches of protein fractional composition and fatty-acid composition of nonalkaloid and low-alkaloid lupine varieties oils for food production are actual in modern social and economic conditions, when it is required to find an alternative for soybean products. In the present work, the protein fractional composition and fatty acid composition of seeds of 11 low-alkaloid lupine varieties of domestic selection of three species: white, yellow and narrow-leaved lupine were investigated. The highest content of crude protein was detected in seed samples of yellow lupine, the crude protein content in white lupine seeds was slightly lower, and all the studied samples of narrow-leaved lupine were characterized by the lowest crude protein content. The total amount of soluble proteins in lupine seeds was high and varied from 84,21 to 92,45 %. In all examined samples of white lupine varieties the albumin fraction dominated, while in seeds of narrow-leaved and yellow lupine varieties the globulin fraction dominated. The crude fat content in the seeds of the different varieties varied from 4,62 to 9,28%. Differences were found in the fatty acid composition of lupin seed oil of different species. The fatty-acid composition of seeds was characterized by the predominance of oleic acid in the oil of white lupine varieties, with a clear predominance of linoleic acid in yellow and narrow-leaved lupine varieties.


2021 ◽  
Vol 72 (3) ◽  
pp. e415 ◽  
Author(s):  
M. De Wit ◽  
V.K. Motsamai ◽  
A. Hugo

Cold-pressed seed oil from twelve commercially produced cactus pear cultivars was assessed for oil yield, fatty acid composition, physicochemical properties, quality and stability. Large differences in oil content, fatty acid composition and physicochemical properties (IV, PV, RI, tocopherols, ORAC, % FFA, OSI and induction time) were observed. Oil content ranged between 2.51% and 5.96% (Meyers and American Giant). The important fatty acids detected were C16:0, C18:0, C18:1c9 and C18:2c9,12, with C18:2c9,12, the dominating fatty acid, ranging from 58.56-65.73%, followed by C18:1c9, ranging between 13.18-16.07%, C16:0, which ranged between 10.97 - 15.07% and C18:0, which ranged between 2.62-3.18%. Other fatty acids such as C14:0, C16:1c9, C17:0, C17:1c10, C20:0, C18:3c9,12,15 and C20:3c8,11,14 were detected in small amounts. The quality parameters of the oils were strongly influenced by oil content, fatty acid composition and physicochemical properties. Oil content, PV, % FFA, RI, IV, tocopherols, ORAC and ρ-anisidine value were negatively correlated with OSI. C18:0; C18:1c9; C18:2c9,12; MUFA; PUFA; n-6 and PUFA/SFA were also negatively correlated with OSI. Among all the cultivars, American Giant was identified as the paramount cultivar with good quality traits (oil content and oxidative stability).


2014 ◽  
Vol 13 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Gerald J. Seiler

Monitoring and protecting germplasm in genebanks using in situ collections while preserving its original genetic integrity is a priority of germplasm curation. Many germplasm accessions need to be regenerated due to their demand and/or seed condition. The regeneration of wild Helianthus (sunflower) species poses several challenges due to the diversity of 53 wild species. Fatty acid composition of sunflower oil is an important quality factor for the crop. Since oil quality is environmentally influenced, and evaluation of this trait is usually performed on oil from achenes from the original accessions of wild sunflower species, we conducted a study on 72 accessions of eight annual and four perennial taxa of wild sunflower species to compare the oil quality of the original accessions and those regenerated for genebank maintenance. The results showed that the fatty acid composition profiles of achenes from the original and regenerated accessions are not the same. It seems that selection for specific fatty acids in several species will require the analysis of both populations to identify germplasm accessions for use in breeding programmes. It should be borne in mind that accessions of wild species are open-pollinated segregating populations, so one would expect some variability in each succeeding generation. While there may be differences between the original and regenerated accessions, the interrelationships of fatty acids are generally similar in wild and cultivated sunflower species, so there should be no detrimental effects on oil quality when using the wild species for other traits. As more regenerated accessions become available, a more precise relationship between the original and regenerated accessions should emerge.


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