Differences in Development of Oleic and Linoleic Acid in High- and Normal-Oleic Virginia and Runner-Type Peanuts

2016 ◽  
Vol 43 (1) ◽  
pp. 12-23 ◽  
Author(s):  
C.M. Klevorn ◽  
K.W. Hendrix ◽  
T.H. Sanders ◽  
L.L. Dean
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Food Industry ◽  
Growing Season ◽  
Fatty Acid Profiles ◽  
Fresh Weight ◽  
High Oleic ◽  
Harvest Dates ◽  
Oleic Acid Concentration

ABSTRACT A consistent, pure supply of high-oleic (HO) peanuts is important to certain segments of the food industry as it allows for the production of confections and other products with improved shelf-life characteristics. Peanut shellers have struggled with food industry demands for lots which contain greater than 95% high-oleic peanuts. Normal-oleic (NO) and HO cultivars of virginia and runner market type peanuts were grown during the 2012 and 2013 growing season respectively to investigate differences in fatty acid development between HO and NO peanuts. Fatty acid profiles of individual seeds from individual plants taken across the growing season were determined in relation to seed fresh weight. Fatty acid profiles of HO virginia-type seeds from the early sampling date of 78 days after planting (DAP) revealed oleic acid to linoleic acid ratios (O/L) of only 4.0 in the seeds of the greatest fresh weight. As the oleic acid concentration in many of the HO virginia-type peanuts reached 60 to 80% and the linoleic acid concentrations ranged from less than 1.0 to 10 % by the middle sampling date (106 DAP), the O/L ratios of most HO seeds were well above the industry accepted cut-off ratio of 9.0. A similar change in the fatty acids was seen in the HO runner cultivar. Increases in oleic acid and decreases in linoleic acid contents occurred in conjunction with the increased seed fresh weights. The data indicate that HO seed attain high-oleic status as physiological development progresses as seen in the changing seed fresh weight. However at the final sampling dates which corresponded to the harvest dates, O/L ratios of less than 9.0 were still present for the HO cultivars of both market types despite the fresh weight of some seeds being of potential marketable size. It was concluded that some of the perceived contamination of HO seed lots with NO seed could be the result of normal peanut development, especially in the virginia-type cultivar with the larger sized seeds.

scholarly journals Genotype and Seasonal Variation Affect Yield and Oil Quality of Safflower (Carthamus tinctorius L.) under Mediterranean Conditions

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 122
Author(s):  
Lara Abou Chehade ◽  
Luciana G. Angelini ◽  
Silvia Tavarini
Keyword(s):  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Seasonal Variation ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Plant Height ◽  
Seed Yield ◽  
Oil Quality ◽  
Growing Season ◽  
Mediterranean Conditions

The adoption of climate-resilient and resource-use efficient crop species and varieties is a key adaptation action for farmers in the face of climate change. Safflower, an emerging oilseed crop, has been recognized for its high oil quality and its favorable agronomic traits such as drought and cold tolerance, making it particularly suitable to Mediterranean conditions. A 2-year field study was carried out to evaluate the effects of the genotype and growing season on the crop phenology, seed and oil production, macronutrient accumulation and partitioning, and fatty acid composition of spring-sown safflower grown under rainfed conditions. The experiment was conducted during the 2012 and 2013 growing seasons on an alluvial deep loam soil (Typic Xerofluvent) at the Centre for Agri-environmental Research “E. Avanzi” of the University of Pisa (Pisa, Central Italy). Higher seed yield and yield components (plant density, plant height, branching, number of capitula per plant and seeds per capitulum) were found in almost all genotypes when the seeds were sown in mid-March 2012 compared to in late April 2013. More favorable conditions in 2012, i.e., early sowing date, higher precipitation, and quite mild temperatures, led to a better seed and oil yield and greater aboveground biomass and nitrogen uptake, with the highest amounts being removed by straw. Greater seed yield was found to be associated with a greater plant height and a higher number of capitula per plant. Oil content was negatively affected by the higher temperatures and the lower amounts of precipitation that occurred during the 2012 growing season. Seasonal variation in fatty acid composition depended on the genotype. Lower precipitation and higher temperatures during 2013 favored oleic acid content in high linoleic acid genotypes and linoleic acid in medium to high oleic acid genotypes. Among the genotypes, the linoleic-type Sabina and the oleic-type Montola 2000 performed the best in both seasons. The results, besides identifying promising safflower genotypes for spring sowing in the Mediterranean region and for future breeding programs, pointed out the importance of early sowing to contrast unfavorable environmental conditions during seed-filling, thus ensuring higher yields.

scholarly journals CHEMICAL COMPOSITIONS OF PASSIFLORA EDULIS SEEDS OIL COLLECTED IN VIETNAM

2019 ◽  
Vol 57 (5) ◽  
pp. 551
Author(s):  
To Dao Cuong ◽  
Doan Lan Phuong ◽  
Nguyen Van Tuyen Anh ◽  
Pham Ngoc Khanh ◽  
Tran Thu Huong ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Unsaturated Fatty Acids ◽  
Chemical Compositions ◽  
Fatty Acid Profiles ◽  
Main Ingredient ◽  
Passiflora Edulis ◽  
Soxhlet Method

The present research was aimed to study the chemical compositions of Passiflora edulis Sims seeds oil, including the fatty acid profiles, contents of tocopherols, sterols, and triglycerides. The seeds oil yield is 24.88% by using Soxhlet method. Passiflora edulis seeds oil showed high levels of unsaturated fatty acids (89.25%) with main ingredient linoleic acid (w-6, 66.94%) and oleic acid (w-6, 18.86%). Tocopherols (18.04 mg/kg), sterols (2935.35 mg/kg) and triglycerides (monomere TAG, 74.11%) are also determined by using IOC and ISO methods, respectively. The findings demonstrate that P. edulis seeds oil could be used beneficially in the food and cosmetic industries.

Further Studies On The Inheritance Of Fatty Acid Composition In Peanut1

1993 ◽  
Vol 20 (2) ◽  
pp. 74-76 ◽  
Author(s):  
D. A. Knauft ◽  
K. M. Moore ◽  
D. W. Gorbet
Keyword(s):  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Acid Composition ◽  
Recessive Gene ◽  
Peanut Oil ◽  
High Oleic ◽  
Digenic Inheritance ◽  
Recessive Genes

Abstract Oleic and linoleic acid together constitute about 80% of the fatty acid composition in peanut oil. Increasing the ratio of oleic to linoleic acid will improve the keeping quality of peanut oil. A University of Florida breeding line, designated F435, averages 80% oleic acid and 2% linoleic acid. Initial genetic studies of this fatty acid composition showed that a single recessive gene controlled the trait in two genetic backgrounds and a second recessive gene was necessary for expression in a third background. Further studies have shown monogenic inheritance in 12 parental backgrounds and digenic inheritance in one background. This suggests that either one of the two recessive genes may be common in peanut germplasm, and that crosses could be expected to segregate in simple monogenic ratios. When the proportion of genes from F435 is reduced through backcrossing to less than 0.8%, fatty acid composition remains similar to the original F435 line. Organoleptic and agronomic characteristics do not appear affected by the fatty acid composition change. Given the simple inheritance, lack of background genetic effects, and lack of apparent undesirable linkages, incorporation of high oleic acid into peanut cultivars should be straightforward.

Fatty Acid Data and Crop Surveys Indicate Sources of Red Sunflower Seed Weevil (Coleoptera: Curculionidae), Populations and Suggest Strategies for Management

2020 ◽  
Author(s):  
Jarrad R Prasifka ◽  
Beth Ferguson ◽  
James V Anderson
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Sunflower Seed ◽  
Cultural Practices ◽  
High Oleic ◽  
Fatty Acid Data ◽  
Smicronyx Fulvus ◽  
Combined Data ◽  
Fatty Acid Compositions

Abstract The red sunflower seed weevil, Smicronyx fulvus L., is a univoltine seed-feeding pest of cultivated sunflower, Helianthus annuus L. Artificial infestations of S. fulvus onto sunflowers with traditional (<25% oleic acid), mid-oleic (55–75%), or high oleic (>80%) fatty acid profiles were used to test if fatty acids could be used as natural markers to estimate the proportion of weevils developing on oilseed sunflowers rather than wild Helianthus spp. and confection (non-oil) types. Oleic acid (%) in S. fulvus confirmed the fatty acid compositions of mature larvae and weevil adults reflected their diets, making primary (oleic or linoleic) fatty acids feasible as natural markers for this crop-insect combination. Oleic acid in wild S. fulvus populations in North Dakota suggests at least 84 and 90% of adults originated from mid-oleic or high oleic sunflower hybrids in 2017 and 2018, respectively. Surveys in 2017 (n = 156 fields) and 2019 (n = 120 fields) extended information provided by S. fulvus fatty acid data; no significant spatial patterns of S. fulvus damage were detected in samples, damage to oilseed sunflowers was greater than confection (non-oil) types, and the majority of damage occurred in ≈10% of surveyed fields. Combined, data suggest a few unmanaged or mismanaged oilseed sunflower fields are responsible for producing most S. fulvus in an area. Improved management seems possible with a combination of grower education and expanded use of non-insecticidal tactics, including cultural practices and S. fulvus-resistant hybrids.

scholarly journals Comparison of Oil Content and Fatty Acid Profile of Ten NewCamellia oleiferaCultivars

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Chunying Yang ◽  
Xueming Liu ◽  
Zhiyi Chen ◽  
Yaosheng Lin ◽  
Siyuan Wang
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Oil Content ◽  
Palmitoleic Acid ◽  
Eicosenoic Acid ◽  
Camellia Oleifera ◽  
Average Ratio ◽  
Mature Seeds ◽  
New Cultivars

The oil contents and fatty acid (FA) compositions of ten new and one wildCamellia oleiferavarieties were investigated. Oil contents in camellia seeds from newC. oleiferavaried with cultivars from 41.92% to 53.30% and were affected by cultivation place. Average oil content (47.83%) of dry seeds from all ten new cultivars was almost the same as that of wild commonC. oleiferaseeds (47.06%). NewC. oleiferacultivars contained similar FA compositions which included palmitic acid (C16:0, PA), palmitoleic acid (C16:1), stearic acid (C18:0, SA), oleic acid (C18:1, OA), linoleic acid (C18:2, LA), linolenic acid (C18:3), eicosenoic acid (C20:1), and tetracosenoic acid (C24:1). Predominant FAs in mature seeds were OA (75.78%~81.39%), LA (4.85%~10.79%), PA (7.68%~10.01%), and SA (1.46%~2.97%) and OA had the least coefficient of variation among different new cultivars. Average ratio of single FA of ten artificialC. oleiferacultivars was consistent with that of wild commonC. oleifera. All cultivars contained the same ratios of saturated FA (SFA) and unsaturated FA (USFA). Oil contents and FA profiles of new cultivars were not significantly affected by breeding and selection.

The Interaction of the Soybean Seed High Oleic Acid Oil Trait With Other Fatty Acid Modifications

2018 ◽  
Vol 95 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Kristin Bilyeu ◽  
Mária Škrabišová ◽  
Doug Allen ◽  
Istvan Rajcan ◽  
Debra E. Palmquist ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Soybean Seed ◽  
High Oleic Acid ◽  
Acid Oil ◽  
High Oleic ◽  
Fatty Acid Modifications

Effect of Resin Components on the Reversion Process of Sulfur-Vulcanized Guayule Rubber

1986 ◽  
Vol 59 (5) ◽  
pp. 800-808 ◽  
Author(s):  
James M. Sloan ◽  
Michael J. Maghochetti ◽  
Walter X. Zukas
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Naturally Occurring

Abstract An effort to characterize the reversion process of guayule rubber when naturally-occurring guayule resin components are present has shown that these components act as a reversion-retarding material. The amount of reversion resistance varies as a function of temperature, concentration, and type of fatty acid. Of the three fatty acids used, linoleic acid, stearic acid, and oleic acid, linoleic acid performed the best for reversion resistance, followed by stearic acid, then oleic acid. When the temperature was increased 10°C, an increase of 15% reversion was observed. This held true for the three temperatures studied. In addition, the amount of reversion improvement upon addition was 20% reversion. In the case of curing at 150°C, this resulted in 0% reversion. The 20% resistance improvment was consistent for the 3 temperatures studied.

High Oleic Sunflower: Studies on Composition and Desaturation of Acyl Groups in Different Lipids and Organs

1990 ◽  
Vol 45 (3-4) ◽  
pp. 166-172 ◽  
Author(s):  
Petra Sperling ◽  
Ute Hammer ◽  
Wolfgang Friedt ◽  
Ernst Heinz
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Electron Transport ◽  
Fatty Acid Profiles ◽  
High Oleic ◽  
Oleate Desaturase ◽  
Electron Transport Chains ◽  
Selection Of

Abstract A selection of lipids from achenes, cotyledons after germination, roots and leaves of normal and high oleic varieties of sunflower were analyzed with regard to their fatty acid profiles. The lipids included triacylglycerol and phosphatidylcholine as ER-made components and mono-and digalactosyl diacylglycerol as plastid-localized glycolipids. A comparison of fatty acid pat­ terns showed that the block in oleate desaturation of the high oleic variety is confined to the ER of fat accumulating embryos, but that upon germination the oleate desaturation in the cotyledonary ER is rapidly derepressed. These data are supported by enzymatic experiments. In microsomes from maturing fruits of the high oleic variety oleoyl-phosphatidylcholine desaturase could not be detected, whereas o leoyl-CoA : lyso-phosphatidylcholine acyltransferase and components of the microsomal electron transport chains were not affected. A correlation in the expression of desaturation blocks in seed and root fatty acids as observed in mutants of other species was not observed which, therefore, cannot be generalized. Our data are discussed in terms of the existence of two ER-specific oleate desaturase activities.

Enzymatische Aspekte zur Biosynthese des Blatt-Cutins bei Gasteria verricuosa-Blättern nach Verletzung

1963 ◽  
Vol 18 (1) ◽  
pp. 67-79 ◽  
Author(s):  
Wolfgang Heinen ◽  
Ingeborg V. D. Brand
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Mode Of Action ◽  
Saturated Fatty Acids ◽  
Late Phase ◽  
Acid Oxidase ◽  
Enzymatic Assays ◽  
Microscopic Studies

1. Three fatty acid oxidizing enzymes, stearic and oleic acid oxidase as well as lipoxidase have been shown to be present in leaves of Gasteria verricuosa.2. By following the activity of these enzymes after injury we considered that they are involved in cutin synthesis which takes place at the wounded top of the leaf.3. Comparing the activity near the wounded part and the untreated inner sphere of the leaf lead to the conclusion that two of the oxidases (stearic and oleic oxidase) serve as substrate donors for lipoxydase by converting stearic into oleic and the latter into linoleic acid.4. Since the level of polyenic acids in leaves is high in comparison to saturated fatty acids, the activity of stearic and oleic oxidase only increases in the late phase of cutin synthesis, while lipoxydase is highly activated at the top directly after wounding and in the inner part of the leaf 3 - 4 weeks after cutin synthesis has started. At the same time pectinase shows its highest activity, suggesting that the formation of the pectic layer is secondary to the formation of cutin.5. Simultaneously to the enzymatic assays, cutin formation was followed by macro- and microscopic studies.6. The mode of action of lipoxydase and the interrelationship of the oxidizing enzymes in the formation of cutin are discussed and a formula for the structure of Gasteria cutin is given.7. According to the data presented here and the results obtained from literature, a possible scheme for cutin synthesis is given.

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