Influence of environmental and agronomic factors contributing to increased levels of phospholipids in oil from UK linseed Linum usitatissimum

Froment, M. A.; Smith, Jody; Freeman, K. C.

doi:10.1016/s0926-6690(99)00024-2

Cited by 7 publications

(4 citation statements)

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“…Phospholipids may be associated with humid harvesting conditions and delayed harvesting. At high concentrations phospholipids cause problems in production systems, causing stickiness and irreversible opacity (Froment et al 1999). In that study, the content of all phospholipids varied between 43 ppm and 1436 ppm, and the content of hydratable phospholipids between 43 ppm and 1429 ppm, depending on site and variety of linseed.…”

Section: Removal Of Phospholipidsmentioning

confidence: 78%

“…Some phospholipids can be removed by water, but many seed oils contain also non-hydratable phospholipids (Nilsson-Johansson et al 1988). Their amount varied but was less than 10.6 ppm in the study by Froment et al (1999). A traditional compound for removing the phospholipids of linseed is phosphoric acid (Nilsson-Johansson et al 1988).…”

Section: Removal Of Phospholipidsmentioning

confidence: 84%

“…A traditional compound for removing the phospholipids of linseed is phosphoric acid (Nilsson-Johansson et al 1988). The costs caused by removal of phospholipids can be decreased if the phospholipids are identified early in the processing, ideally at the crushing stage (Froment et al 1999). Paronjan et al (2004) patented a method for removal of phospholipids and waxes.…”

Section: Removal Of Phospholipidsmentioning

confidence: 99%

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Quality characteristics of edible linseed oil

Nykter¹,

KYMÄLÄINEN²,

Gates³

2008

AFSci

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In this review the quality properties of linseed oil for food uses are discussed as well as factors affecting this quality. Linseed oil has a favourable fatty acid composition with a high linolenic acid content. Linseed oil contains nearly 60% α-linolenic acid, compared with 25% for plant oils generally. The content of linolenic acid and omega-3 fatty acids is reported to be high in linseed grown in northern latitudes. The composition of fatty acids, especially unsaturated fatty acids, reported in different studies varies considerably for linseed oil. This variation depends mainly on differences in the examined varieties and industrial processing treatments. The fatty acid composition leads also to some problems, rancidity probably being the most challenging. Some information has been published concerning oxidation and taste, whereas only a few studies have focused on colour or microbiological quality. Rancidity negatively affects the taste and odour of the oil. There are available a few studies on effects of storage on composition of linseed oil. In general, storage and heat promote auto-oxidation of fats, as well as decrease the amounts of tocopherols and vitamin E in linseed oil. Several methods are available to promote the quality of the oil, including agronomic methods and methods of breeding as well as chemical, biotechnological and microbiological methods. Time of harvesting and weather conditions affect the quality and yield of the oil.

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Section: Removal Of Phospholipidsmentioning

confidence: 78%

Section: Removal Of Phospholipidsmentioning

confidence: 84%

Section: Removal Of Phospholipidsmentioning

confidence: 99%

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Quality characteristics of edible linseed oil

Nykter¹,

KYMÄLÄINEN²,

Gates³

2008

AFSci

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“…In fact, several factors comprising temperature, rainfall, light, drought, ozone exposure, nitrogen deprivation, fertilizers may influence the nutritional quality of oilseeds (Baldini et al, 2002;Flagella et al, 2002;Green, 1986;Harris et al, 1978;Rahimi et al, 2011;Tripathi and Agrawal, 2013). Numerous works have reported the environmental effects on yield, oil content and fatty acids composition of oil, tocopherols, phytosterols, and phospholipids in oilseed plants (Froment et al, 1999;Green, 1986;Trémolière et al, 1982;Tripathi and Agrawal, 2013;Zubr and Matthaus, 2002). Cold is one of parameters directly involved in the increasing of omega-3 content in plant tissues maintaining membrane integrity and their fluidity (Guan et al, 2014;Steindal et al, 2015;Tonnet and Green, 1987).…”

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confidence: 99%

Environmental and varietal impact on linseed composition and on oil unidirectional expression process

Savoire

Lazouk

Van-Hecke

et al. 2015

OCL

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-Effect of environmental factors and cultivar on linseed composition and subsequent oil expression has been studied. Ten linseed cultivars were grown in two different location (north and south of France) during years 2011, 2012 and 2013. Every year have been characterized in terms of pluviometry, sunshine hours and degree days, each climatic factor has been cumulated from flowering to harvest. A strong impact of cultivar on oil, C18:3 and starch content has been noticed whereas the growing location has only affected the starch and lipid contents. Year effect have been recorded on proteins, oil and C18:3 content. A principal component analysis has highlighted the correlation between the pluviometry and the C18:3 content. Oil content have not presented any correlation with environmental or composition factors. Oil expression using the seeds previously characterized has exhibited a strong correlation between C18:3 content and oil yield. No correlation between oil yield and other composition parameters has been observed. The analysis of variance conducted on yield has emphasized that yield variation was majority attributable to a year effect.Keywords: Linseed / composition / environmental factors / oil expression / cultivar Résumé -Impact de la variété et de l'environnement sur la composition des graines de lin et sur le pressage unidirectionnel. L'effet des paramètres environnementaux et de la variété sur la composition de la graine de lin et sur le procédé ultérieur de pressage a été étudié. Dix variétés de lin oléagineux ont été cultivées sur deux sites différents (nord et centre de la France) au cours des années 2011, 2012 et 2013. Chaque année de culture a été caractérisée, de la floraison des plants à la récolte des graines, en termes de cumul de précipitation, de cumul d'heures d'ensoleillement et de degrés jour de croissance (DJCF). Un fort effet variétal sur les teneurs en huile, C18:3 et amidon a été relevé tandis que le lieu de culture n'a affecté que la teneur en lipides et amidon. L'effet année a quant à lui été marqué pour les teneurs en protéines, huile et C18:3. Une analyse en composantes principales a mis en évidence le lien entre teneur en C18:3 et cumul de précipitations. La teneur en lipides n'a pu être corrélée à aucun des paramètres environnementaux ou de composition étudiés. Le pressage des graines précédemment caractérisées a montré une forte corrélation entre teneur en C18:3 et rendement. Aucune autre corrélation entre paramètres de composition et rendement de pressage n'a été notée. L'analyse de variance a mis en évidence que les variations de rendement observées étaient principalement imputables à un effet année.

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